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(Created page with "<div> <div class="title"><h3>8.38-Sweet Potato Value Addition</h3><br><h3 class="ch-owner">Alex Roberts, University of Guelph, Canada </h3></div> <div class="hero-img-2"> 300px <p>Suggested citation for this chapter.</p> <p>Roberts,A. (2022) Sweet Potato Value Addition,In Farmpedia, The Encyclopedia for Small Scale Farmers. Editor, M.N. Raizada, University of Guelph, Canada. http://www.farmpedia.org</p> <h3 class="title-bg">Introduction</h3>...")
 
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  <div class="title"><h3>8.38-Sweet Potato Value Addition</h3><br><h3 class="ch-owner">Alex Roberts, University of Guelph, Canada </h3></div>
  <div class="title"><h3>8.38-Orange Value Addition</h3><br><h3 class="ch-owner">Olivia Shedler, University of Guelph, Canada </h3></div>
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<p>Suggested citation for this chapter.</p>
<p>Suggested citation for this chapter.</p>
<p>Roberts,A. (2022) Sweet Potato Value Addition,In Farmpedia, The Encyclopedia for Small Scale Farmers. Editor, M.N. Raizada, University of Guelph, Canada. http://www.farmpedia.org</p>
<p>Shedler,O. (2022) Orange Value Addition,In Farmpedia, The Encyclopedia for Small Scale Farmers. Editor, M.N. Raizada, University of Guelph, Canada. http://www.farmpedia.org</p>
       <h3 class="title-bg">Introduction</h3>
       <h3 class="title-bg">Introduction</h3>
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           <P>Sweet potato is a widely grown root crop ( Business Diary, 2017); its large, starchy, sweet-tasting, tuberous roots compose a nutritious vegetable. The young leaves and shoots are sometimes eaten as greens (ActionAid, 2015). Over 95% of the global sweet potato crop is produced in developing countries. More than 130 million tons are produced per year, with China producing about 80% of it (ActionAid, 2015). Sweet potato is rich in carbohydrates, phosphorus, and an excellent source of Vitamins A, B and C (Business Diary, 2017). It is known to lower cholesterol with curative effects for constipation and stomach stress. Value addition from sweet potatoes has become an increasing topic in the food world today as it has endless uses and all of the plant can be used as food for humans or feed for livestock (Business Diary, 2017). Sweet potatoes are widely becoming a novel root vegetable for functional foods, as it is nutritious and widely accessible (Sweet Potato Knowledge Portal, 2018). Functional foods are described as foods that contribute to an overall healthy body (Sweet Potato Knowledge Portal, 2018).</p>
           <P>Being one of, if not the most popular fruit in the world, the orange can be found in Chinese manuscripts that date back to 2200 BC (Tetra Pak, 2017). Belonging to the citrus family, oranges originated from Asia, more specifically southern China and northeastern India (Shultz, 2008). Since it was first discovered, oranges have spread to the east coast of Africa and to the eastern Mediterranean region (Tetra Pak, 2017). There are four types of oranges that account for more than half of the world population of citrus fruits. These four types of oranges are called the sweet orange (or China orange), the sour or bitter orange (or Seville orange), the citrus orange, and orange hybrids (tangors). Of these, the sweet orange is the most important and the most popular commercially (Tetra Pak, 2017). It is said that Africa exports oranges to 40 countries across the world in order to meet the demands of the international market (Ortmann & Hayward-Butt, 1994). Despite the high demand for citrus internationally, the domestic market for citrus, especially oranges, is considered the largest. Export quality control is very strict and it ensures that there are a high number of good-quality fruits left for the domestic market to be sold at lower prices (Ortmann & Hayward-Butt, 1994). Given this, it makes for a competitive market for smallholder farmers. Though, if the demand for the product is there, smallholder farmers have an opportunity to sell their product as long as they are able to meet the demands of the market and keep up with the quality of their product (Nesamvuni et. al., 2017). Due to considerable spoilage due to the lack of refrigeration, alternative post-harvest products are needed, which also have the potential to add more value to the crop. The purpose of this chapter is to describe potential post-harvest value addition opportunities for smallholder orange farmers.</P>  
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       <h3 class="title-bg">Wrapping</h3>
       <h3 class="title-bg">Value Addition - Orange Jam/Marmalade </h3>
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<p>The simplest value addition ideas would be to wrap sweet potatoes in newspaper in order to limit their exposure to light. Light can accelerate the autooxidation of fats and oils. This is imperative to increase shelf life, as well it can be more attractive to buyers; this can be advertised as offering a longer shelf life then other competitors (FoodSafetySite, 2012). Not wrapping each in their own individual package can lead to mold and harmful bacteria that can age sweet potatoes (FoodSafetySite, 2012). And wrapping each in an individual package would prevent pathogen cross-contamination (Lerner, B. Rosie, 2018). This process can be done extremely fast by hand and would result in a prolonged shelf life. Wrapping may be more expensive and time consuming, however, buying used newspaper or books can be inexpensive. Recycling can also lead to a cleaner environment; this can benefit smallholder farmers who sell what they produce (Knott, S., 2018). However, there is insufficient data on the price difference for wrapped compared to unwrapped sweet potatoes.</p>
<p>Making an orange jam or marmalade is very simple and can easily increase the value of an orange. The ingredients aren’t too difficult to find and would be accessible to women in developing nations. The required ingredients to make a simple orange marmalade are oranges, lemons (zest and juice), water, and sugar (Brown, 2018). Liquid pectin is an optional ingredient, as it is a good thickening agent, but it is not required (Makau, 2016). In order to make the actual marmalade itself, here is a helpful recipe that gives clear instructions: https://www.foodnetwork.com/recipes/alton-brown/orange-marmalade-recipe-2014440</p>
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       <h3 class="title-bg">Labeling</h3>
       <h3 class="title-bg">Production of Orange Jam/Marmalade at a Small Scale </h3>
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<p>Value addition could be achieved simply by noting the nutrient benefits of processed sweet potato on packaging. For example, baking the potatoes instead of frying or boiling allows for more nutrients to be kept (Dincer, Cuneyt, et al., 2011). Baking a potato only requires cutting then placing onto a sheet in an oven. Labeling can improve sale value/rate, while adding a quick recipe (like baked fries) could add further value. Also, including the nutritional value of sweet potatoes can be beneficial (Sustain, 2007). A study from Miller & Cassady (2015) supports the claim that including nutritious information helps increase the sale of products by increasing the rate of sales, since ‘knowledge-is-power’. This would be best sold to tourists or at markets.</p>  
<p>Creating orange jams will require some labour in order to be completed. The aspect of this production that will require the most labour will be the actual ‘making’ of the jams, as it will be the most time consuming (Tetra Pak, 2017). Though, harvesting the oranges themselves will take some time as well. The fruits must be harvested within the “harvest window” in order to ensure they are at the best quality possible (Bates, Morris, & Crandall, 2001). The oranges must be handled in the field with caution to prevent any defects from getting into the batch. The fruit will deteriorate quickly once harvested, which means that it must be processed as soon as possible (Tetra Pak, 2017). For making the jam, only a heat source, a pot, and a knife are required. The heat source can be something as simple as a fire. (Bates, Morris, & Crandall, 2001). This means that the machinery required in order to produce orange jam/marmalade is relatively low-cost and easily accessible. The jam’s packaging is where more value can be added. A glass jar with a nice label is recommended, as it easily adds a classy look (Bragg, 2018). A product that looks aesthetically pleasing overall will grab a buyers’ eye and compel them to buy it. Also if applicable, the product can be labelled as ‘organic’ which not only adds value, but can appeal to more consumers who like to go that route. Seeing as the jam/marmalade does not require refrigeration until it has been opened, transportation can be done in any weather conditions (Tetra Pak, 2017). Putting this product on the market in local markets or food stands will be beneficial and give exposure to the product. If the producers wish to take it further, overseas markets could be a possibility, though it is not ideal for someone who is doing this at a small scale.</p>
<p>Here is a link to a helpful video on how to properly can jams to prevent bacteria from getting in and spoiling: https://www.youtube.com/watch?v=OckTjdkUeWM</p>
 
<p>Turning a raw orange into an orange-based product has many benefits. One main benefit is increasing an orange’s expiry date. This means that a fruit that lasts around three weeks until it starts to go rotten can be turned into a product that has a longer shelf life (Tetra Pak, 2017) which benefits both farmer and consumer.</p>  
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       <h3 class="title-bg">Flour</h3>
       <h3 class="title-bg">Value Addition - Orange Oil  </h3>
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<p>Sweet potato root can be used to produce a variety of flours, which would be subsequently used to make breads, pastries and noodles (CIP, 2018). The process of producing flour from sweet potato root is described in full below. The following diagram shows an overview of the process:</p> 
<p>It is said that in Nigeria, orange peels are frequently discarded, yet they hold so much value (Giwa, Muhammad, & Giwa, 2018). Orange oil is a great way to add value to an orange, as there are many different ways it can be used on a daily basis. Orange oil can be used in products such as essential oils, beauty products, food and beverage, and cleaning products. Orange oil has many benefits, such as boosting immunity, working as an anti-inflammatory, and can reduce pain (Axe, 2018). The harvesting process is standard for all orange products. As mentioned before, harvesting oranges during the ‘harvesting window’ is crucial in order to ensure the best quality oranges (Bates, Morris, & Crandall, 2001). Extracting the actual oil from the orange is done by extracting it from its peel. This can be done by methods such as hydro-distillation, supercritical fluid extraction, cold pressing, or microwave extraction (Giwa, Muhammad, & Giwa, 2018). Though a bit pricey, the following machine is very good at extracting the maximum amount of oil from peels: https://www.alibaba.com/product-detail/2-4Kg-Flower-Herb-Per-Oregano_60790250668.html?spm=a2700.7724857.normalList.1.4ff14324UStyu6</p>
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<p>The process requires a knife for cutting as well as a mill; mills can be priced as low as $60. A visual step by step process of making flour can be found at https://www.youtube.com/watch?v=GLEbnNnXqMA. This video is particularly useful because it describes the process in Kenya.  Sweet potato flour can be used to fortify other flours or to make bread itself. Fortifying other flours with sweet potato flour yielded the best results compared to other white breads made from wheat flour alone (Shan, Shan, et al., 2012). Hence the packaging could advertise that sweet potato fortified bread is healthier and contains more nutrients than traditional flours. Sweet potato flour is sold in Canada at Walmart (https://www.walmart.com/c/kp/potato-flour) for $17.86/Kg, thus a smallholder farmer can mill the roots and sell for a profit.</p>  
<p>If the distillation machine is not a possibility, a more affordable, but less effective option is to use a heat source (preferably an oven, but a fire also works) in order to dehydrate the orange peels, and then use 70-90% rubbing alcohol to press the oil out of the peels (Bates, Morris, & Crandall, 2001). Once the oils have been collected, they can be stored in jars until use. Glass jars would be a smart packaging option, as it adds more value to the overall product than plastic does (Bragg, 2018). The product can then be sold to consumers as is, or it can also be sold to other companies in bulk who would use it in their own products. Selling it in a stand or market will bring exposure to many, especially since the product serves so many different purposes.</p>
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       <h3 class="title-bg">Jam</h3>
       <h3 class="title-bg">Value Addition - Orange Alcohol</h3>
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<p>Sweet potato today can be used to make jams with only a blender (Business Diary, 2017), which the online retailer “Alibaba.com” sells for as little as $11. Blended sweet potato can also lead to value added products such as smoothies, drinks and catsup (Business Diary, 2017). This would help improve sales at road sides and markets.</p>
<p>Fermenting local fruits, grains, and vegetables has been done for many years in developing countries, and is still done today (Patel, 2007). In developing countries, distilled alcohols and wines are generally consumed by those with more money. Those with less money tend to stick to more traditional alcohols, such as sorghum-based beer and palm wines (Patel, 2007). Turning oranges into an alcohol is one way to ensure that it achieves high value, as alcohol sells for a lot of money. The process of turning oranges into alcohol is called ‘fermenting’. In this process, sugar is converted to alcohol by using yeast (Taylor, 2018). A helpful step-by-step guideline is linked here: https://www.leaf.tv/articles/how-to-ferment-fruit-to-make-alcohol/</p>
 
<p>Once fermented, the alcohol producer can decide if they would like to strain the mixture to turn it into a fruit wine or distill the mixture to turn it into an orange liqueur (Taylor, 2018). If the alcohol producer chooses to distill the alcohol, here is an inexpensive alcohol distiller that can be purchased: https://www.alibaba.com/product-detail/Factory-price-mini-alcohol-distiller-with_60655396499.html?spm=a2700.7724857.normalList.57.614f133cFXi971</p>
 
<p>In developing countries such as Africa, alcohol is not only used leisurely, but also in cultural and religion traditions (Parry, 2000). Having the alcohol be available to locals can help increase sales and exposure. The product can be packaged in glass bottles in order to increase its value (Bragg, 2018). Also, adding labels to the bottles will help, especially labels containing info on who produced the alcohol. Luckily, alcohol has an extensive shelf life, with many unopened bottles being able to last over 10 years without having any change in quality (Cocktail Builder’s Blog, 2017). This means that the alcohol will not expire quickly and valuable product will not go to waste.</p>
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       <h3 class="title-bg">Sweet potato skins</h3>
       <h3 class="title-bg">Full list of helpful resources</h3>
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<p>Farmers and consumers can use the whole tuber to maximize profits. As already noted, the root can be used to create flour for human consumption or can be sold as livestock feed ( CIP, 2018). The outer layer of the tuber, instead of being thrown away, contains many useful nutrients and protein which could be added to smoothies, jams, or drinks (Allrecipes, 2018). As stated before a blender can cost as low as $11 on Alibaba.com. Additionally, sweet potato skins can also be baked (Allrecipes, 2018).</p>
<p>Easy-to-make orange jam/marmalade recipe: https://www.foodnetwork.com/recipes/alton-brown/orange-marmalade-recipe-2014440</p>
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<p>How to easily can jams: https://www.youtube.com/watch?v= OckTjdkUeWM </p>
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      <h3 class="title-bg">Baked sweet potatoes</h3>
<p>Distillation machine (extracts oils): https://www.alibaba.com/product-detail/2-4Kg-Flower-Herb-Per-Oregano_60790250668.html?spm=a2700.7724857.normalList.1.4ff14324UStyu6</p>
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<p>There is another popular value addition from sweet potatoes which serves as a healthy alternative to white fleshed potatoes. Sweet potatoes (baked, fried, boiled) are considered as a novel source for natural health promoting compounds (beta-carotene and anthocyanins) for the functional food market (Bovell et al., 2017). Boiling sweet potatoes result in a loss in carotenoids and other important vitamins and minerals (Gehse, Saskia, et al.), hence baking is an alternative. Baking is done in an oven, which can cost as little as $60 on Alibaba, or using rocks or clay. For the latter, a tutorial can be found at https://www.youtube.com/watch?v=z_OUaJVHnF0. Baking opens up new markets, such as to tourists or at local markets.</p>
<p>Step-by-step guideline to fermenting alcohol: https://www.leaf.tv/articles/how-to-ferment-fruit-to-make-alcohol/</p>
 
<p>Alcohol distillation machine: https://www.alibaba.com/product-detail/Factory-price-mini-alcohol-distiller-with_60655396499.html?spm=a2700.7724857.normalList.57.614f133cFXi971</p>
 
<p>Inexpensive glass jars for packaging: https://www.alibaba.com/product-detail/Xuzhou-glass-manufacturer-250ml-500ml-1000ml_60591151485.html?spm=a2700.galleryofferlist.normalList.210.5ac826d5FaIZCE</p>


<p>In conclusion, there is an abundance of value addition ideas for sweet potato smallholder farmers, and there are still more to be discovered with research. Most of these products are realistic for smallholder farmers to implement.</p>
<p>Inexpensive glass bottles (for alcohol) https://www.alibaba.com/product-detail/glass-bottle-wine-bottle-wholesale_959241930.html?spm=a2700.galleryofferlist.normalList.112.2ae2546bW8UE7o</p>
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       <h3 class="title-bg">References </h3>
       <h3 class="title-bg">References </h3>
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  <p>1. ActionAid. (2015). What is a small holder farmer? Retrieved from http://actionaid.org/australia/2015/06/smallholderfarmers101</p>
  <p>1. Shultz, S. (2008). Oranges. Journal of Agricultural & Food Information, 6, 13-20. Retrieved November 13, 2018, from https://www-tandfonline-com.subzero.lib.uoguelph.ca/doi/pdf/10.1300/J108v06n02_03?needAccess=true.</p>
 
<p>2. Bovell, B. Adelia C. (2007) Sweet Potato: A Review of Its Past, Present, and Future Role in Human Nutrition. Advances in Food and Nutrition Research, 7, 1–59, doi:10.1016/s1043-4526(06)52001-7.</p>
 
<p>3. Describe the different ways that food spoils. (2012). Retrieved from http://www.foodsafetysite.com/educators/competencies/general/microbiology/mic6.html</p>
 
<p>4. Dincer, Cuneyt, et al. (2011) Effects of Baking and Boiling on the Nutritional and Antioxidant Properties of Sweet Potato [Ipomoea Batatas (L.) Lam.] Cultivars. Plant Foods for Human Nutrition, 66 (4), 341-347. doi:10.1007/s11130-011-0262-0.</p>
 
<p>5. Gehse, Saskia, et al. (2018) Determination of the Effect of Boiling on the Bioavailability of Carotenoids in Vegetables Using Resonance Raman Spectroscopy. Laser Physics, 28(10), 105602. doi:10.1088/1555-6611/aad1b4.</p>


<p>6. Knott, S. (2018, March 22). One of Africa's most promising cities has a trash problem. Retrieved from https://qz.com/africa/1229079/ghana-the-worlds-fastest-growing-economy-has-a-trash-problem/</p>
<p>2. Brown, A. (2018). Orange Marmalade. Food Network, USA. Retrieved November 13, 2018, from https://www.foodnetwork.com/recipes/alton-brown/orange-marmalade-recipe-2014440</p>


<p>7. Sweet Potato Knowledge Portal, www.sweetpotatoknowledge.org/files/presentation-12-low-cost-technologies-value-addition-orange-fleshed-sweetpotato-smallholder-farmers-western-kenya/.</p>  
<p>3. Bates, R. P., Morris, J. R., & Crandall, P. G. (2001). Principles and practices of small - and medium - scale fruit juice processing. FAO, Rome. Retrieved October 3, 2018, from http://www.fao.org/docrep/005/y2515e/y2515e00.htm#toc</p>


<p>8. Lerner, B. Rosie. “Time to Harvest Sweet Potatoes.” Purdue Extension - Purdue University, 21 Sept. 2018, http://extension.purdue.edu/article/30787.</p>
<p>4. Makau, C. (2016, March 11). You can do so much with fruits for more value. Retrieved October 3, 2018, from https://www.nation.co.ke/business/seedsofgold/You-can-do-so-much-with-fruits-for-more-value/2301238-3113148-uvcaa3/index.html</p>


<p>9. Miller, L. M., & Cassady, D. L. (2015). The effects of nutrition knowledge on food label use. A review of the literature. Appetite, 92, 207-216. doi:10.1016/j.appet.2015.05.029</p>
<p>5. Axe, J. (2018, August 28). Orange Oil — Enhance Your Immunity, Skin & Kitchen! Retrieved October 4, 2018, from https://draxe.com/orange-oil/</p>


<p>10. Obi, L. “15 Ways You Can Add Value to Potatoes for More Money.” Daily Nation, 30 Sept. 2016, www.nation.co.ke/business/seedsofgold/ways-you-can-add-value-to-potatoes-for-more-money/2301238-3400418-e4g4ul/index.html. (cite as Obi, 2016)</p>
<p>6. Giwa, S. O., Muhammad, M., & Giwa, A. (2018). Utilizing Orange Peels for Essential Oil Production. Journal of Engineering and Applied Sciences,13(1), 17-27. Retrieved November 13, 2018, from http://www.arpnjournals.org/jeas/research_papers/rp_2018/jeas_0118_6632.pdf</p>


<p>11. Old Farmer's Almanac. (2018). Growing Sweet Potatoes. Retrieved November 29, 2018, from https://www.almanac.com/plant/sweet-potatoes</p>
<p>7. Taylor, R. (2018). How to Ferment Fruit to Make Alcohol. Leaf TV. Retrieved November 13, 2018, from https://www.leaf.tv/articles/how-to-ferment-fruit-to-make-alcohol/</p>


<p>12. Shan, S., et al. (2012) Physicochemical Properties And Salted Noodle-Making Quality Of Purple Sweet Potato Flour And Wheat Flour Blends. Journal of Food Processing and Preservation, 37 (5) 709-716, doi:10.1111/j.1745-4549.2012.00686.x.</p>
<p>8. Patel, V. (2007). Alcohol Use and Mental Health in Developing Countries. Annals of Epidemiology. 17, 87-92. Retrieved November 13, 2018, from https://journals-scholarsportal-info.subzero.lib.uoguelph.ca/pdf/10472797/v17i0005_s/s87_auamhidc.xml.</p>


<p>13. Sustain (2007). How can improved food labelling contribute to a healthy and sustainable food system? Retrieved from https://www.sustainweb.org/publications/how_can_improved_food_labelling_contribute/</p>
<p>9. Parry, C. D. (2000). Alcohol Problems in Developing Countries: Challenges for the New Millennium. 2(4), 17-27. Retrieved November 13, 2018, from http://iogt.org/wp-content/uploads/2015/03/Alcohol-Problems-in-Developing-Countries-Challenges-for-the-New-Millennium.pdf</p>


<p>14. “Sweet Potato Recipes.” Allrecipes, www.allrecipes.com/recipes/1094/fruits-and-vegetables/vegetables/sweet-potato/.</p>  
<p>10. Bragg, L. (2018, March 1). Packaging Outlook 2018: Glass Packaging Overview. Retrieved November 13, 2018, from https://www.packagingstrategies.com/articles/90262-packaging-outlook-2018-glass-packaging-overview</p>


<p>15. “Sweet Potato Processing and Uses.” International Potato Center (CIP), cipotato.org/crops/sweetpotato/sweet-potato-processing-and-uses/.</p>
<p>11. Cocktail Builder's Blog. (2017, September 13). Storing Your Spirits: How Long Does Your Alcohol Really Last? Retrieved November 13, 2018, from https://blog.cocktailbuilder.com/how-long-does-alcohol-last/</p>


<p>16. “Value-Added Products from Sweet Potato.” Business Diary PH, Business Diary Ph, 8 Dec. 2017, businessdiary.com.ph/6427/value-added-products-sweet-potato/.</p>  
<p>12. Ortmann, G. F., & Hayward-Butt, P. R. (1994). Demand Analysis of Oranges in South Africa. 33(3), 141-144. Retrieved November 29, 2018, from http://ageconsearch.umn.edu/record/267716/files/agrekon-33-03-007.pdf</p>


<p>17. Victoria Grain Mill - Corona Style. (n.d.). Retrieved from https://torontobrewing.ca/products/victoria-grain-mill-corona-style?variant=32012717379&utm_campaign=gs-2018-10-07&utm_source=google&utm_medium=smart_campaign&gclid=Cj0KCQiA8_PfBRC3ARIsAOzJ2uofbhQoD5PPMrJmemx2diMDGAHWGcxHijD9bGs-mKJ4GkNSNI9sHm8aAkNGEALw_wcB</p>
<p>13. Nesamvuni, A. E., Tshikolomo, K. A., Mpandeli, N. S., & Makhuvha, L. (2017). Perceptions of Smallholder Farmers on Determinants of Competitiveness of the Citrus Industry in Vhembe District, Limpopo Province, South Africa. Journal of Human Ecology, 59(2-3), 62-71. Retrieved November 29, 2018, from https://www.tandfonline.com/doi/pdf/10.1080/09709274.2017.1335133?needAccess=true.</p>

Revision as of 12:36, 7 July 2022

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Suggested citation for this chapter.

Shedler,O. (2022) Orange Value Addition,In Farmpedia, The Encyclopedia for Small Scale Farmers. Editor, M.N. Raizada, University of Guelph, Canada. http://www.farmpedia.org

Introduction

Being one of, if not the most popular fruit in the world, the orange can be found in Chinese manuscripts that date back to 2200 BC (Tetra Pak, 2017). Belonging to the citrus family, oranges originated from Asia, more specifically southern China and northeastern India (Shultz, 2008). Since it was first discovered, oranges have spread to the east coast of Africa and to the eastern Mediterranean region (Tetra Pak, 2017). There are four types of oranges that account for more than half of the world population of citrus fruits. These four types of oranges are called the sweet orange (or China orange), the sour or bitter orange (or Seville orange), the citrus orange, and orange hybrids (tangors). Of these, the sweet orange is the most important and the most popular commercially (Tetra Pak, 2017). It is said that Africa exports oranges to 40 countries across the world in order to meet the demands of the international market (Ortmann & Hayward-Butt, 1994). Despite the high demand for citrus internationally, the domestic market for citrus, especially oranges, is considered the largest. Export quality control is very strict and it ensures that there are a high number of good-quality fruits left for the domestic market to be sold at lower prices (Ortmann & Hayward-Butt, 1994). Given this, it makes for a competitive market for smallholder farmers. Though, if the demand for the product is there, smallholder farmers have an opportunity to sell their product as long as they are able to meet the demands of the market and keep up with the quality of their product (Nesamvuni et. al., 2017). Due to considerable spoilage due to the lack of refrigeration, alternative post-harvest products are needed, which also have the potential to add more value to the crop. The purpose of this chapter is to describe potential post-harvest value addition opportunities for smallholder orange farmers.

Value Addition - Orange Jam/Marmalade

Making an orange jam or marmalade is very simple and can easily increase the value of an orange. The ingredients aren’t too difficult to find and would be accessible to women in developing nations. The required ingredients to make a simple orange marmalade are oranges, lemons (zest and juice), water, and sugar (Brown, 2018). Liquid pectin is an optional ingredient, as it is a good thickening agent, but it is not required (Makau, 2016). In order to make the actual marmalade itself, here is a helpful recipe that gives clear instructions: https://www.foodnetwork.com/recipes/alton-brown/orange-marmalade-recipe-2014440

Production of Orange Jam/Marmalade at a Small Scale

Creating orange jams will require some labour in order to be completed. The aspect of this production that will require the most labour will be the actual ‘making’ of the jams, as it will be the most time consuming (Tetra Pak, 2017). Though, harvesting the oranges themselves will take some time as well. The fruits must be harvested within the “harvest window” in order to ensure they are at the best quality possible (Bates, Morris, & Crandall, 2001). The oranges must be handled in the field with caution to prevent any defects from getting into the batch. The fruit will deteriorate quickly once harvested, which means that it must be processed as soon as possible (Tetra Pak, 2017). For making the jam, only a heat source, a pot, and a knife are required. The heat source can be something as simple as a fire. (Bates, Morris, & Crandall, 2001). This means that the machinery required in order to produce orange jam/marmalade is relatively low-cost and easily accessible. The jam’s packaging is where more value can be added. A glass jar with a nice label is recommended, as it easily adds a classy look (Bragg, 2018). A product that looks aesthetically pleasing overall will grab a buyers’ eye and compel them to buy it. Also if applicable, the product can be labelled as ‘organic’ which not only adds value, but can appeal to more consumers who like to go that route. Seeing as the jam/marmalade does not require refrigeration until it has been opened, transportation can be done in any weather conditions (Tetra Pak, 2017). Putting this product on the market in local markets or food stands will be beneficial and give exposure to the product. If the producers wish to take it further, overseas markets could be a possibility, though it is not ideal for someone who is doing this at a small scale.

Here is a link to a helpful video on how to properly can jams to prevent bacteria from getting in and spoiling: https://www.youtube.com/watch?v=OckTjdkUeWM

Turning a raw orange into an orange-based product has many benefits. One main benefit is increasing an orange’s expiry date. This means that a fruit that lasts around three weeks until it starts to go rotten can be turned into a product that has a longer shelf life (Tetra Pak, 2017) which benefits both farmer and consumer.

Value Addition - Orange Oil

It is said that in Nigeria, orange peels are frequently discarded, yet they hold so much value (Giwa, Muhammad, & Giwa, 2018). Orange oil is a great way to add value to an orange, as there are many different ways it can be used on a daily basis. Orange oil can be used in products such as essential oils, beauty products, food and beverage, and cleaning products. Orange oil has many benefits, such as boosting immunity, working as an anti-inflammatory, and can reduce pain (Axe, 2018). The harvesting process is standard for all orange products. As mentioned before, harvesting oranges during the ‘harvesting window’ is crucial in order to ensure the best quality oranges (Bates, Morris, & Crandall, 2001). Extracting the actual oil from the orange is done by extracting it from its peel. This can be done by methods such as hydro-distillation, supercritical fluid extraction, cold pressing, or microwave extraction (Giwa, Muhammad, & Giwa, 2018). Though a bit pricey, the following machine is very good at extracting the maximum amount of oil from peels: https://www.alibaba.com/product-detail/2-4Kg-Flower-Herb-Per-Oregano_60790250668.html?spm=a2700.7724857.normalList.1.4ff14324UStyu6

If the distillation machine is not a possibility, a more affordable, but less effective option is to use a heat source (preferably an oven, but a fire also works) in order to dehydrate the orange peels, and then use 70-90% rubbing alcohol to press the oil out of the peels (Bates, Morris, & Crandall, 2001). Once the oils have been collected, they can be stored in jars until use. Glass jars would be a smart packaging option, as it adds more value to the overall product than plastic does (Bragg, 2018). The product can then be sold to consumers as is, or it can also be sold to other companies in bulk who would use it in their own products. Selling it in a stand or market will bring exposure to many, especially since the product serves so many different purposes.

Value Addition - Orange Alcohol

Fermenting local fruits, grains, and vegetables has been done for many years in developing countries, and is still done today (Patel, 2007). In developing countries, distilled alcohols and wines are generally consumed by those with more money. Those with less money tend to stick to more traditional alcohols, such as sorghum-based beer and palm wines (Patel, 2007). Turning oranges into an alcohol is one way to ensure that it achieves high value, as alcohol sells for a lot of money. The process of turning oranges into alcohol is called ‘fermenting’. In this process, sugar is converted to alcohol by using yeast (Taylor, 2018). A helpful step-by-step guideline is linked here: https://www.leaf.tv/articles/how-to-ferment-fruit-to-make-alcohol/

Once fermented, the alcohol producer can decide if they would like to strain the mixture to turn it into a fruit wine or distill the mixture to turn it into an orange liqueur (Taylor, 2018). If the alcohol producer chooses to distill the alcohol, here is an inexpensive alcohol distiller that can be purchased: https://www.alibaba.com/product-detail/Factory-price-mini-alcohol-distiller-with_60655396499.html?spm=a2700.7724857.normalList.57.614f133cFXi971

In developing countries such as Africa, alcohol is not only used leisurely, but also in cultural and religion traditions (Parry, 2000). Having the alcohol be available to locals can help increase sales and exposure. The product can be packaged in glass bottles in order to increase its value (Bragg, 2018). Also, adding labels to the bottles will help, especially labels containing info on who produced the alcohol. Luckily, alcohol has an extensive shelf life, with many unopened bottles being able to last over 10 years without having any change in quality (Cocktail Builder’s Blog, 2017). This means that the alcohol will not expire quickly and valuable product will not go to waste.

Full list of helpful resources

References

1. Shultz, S. (2008). Oranges. Journal of Agricultural & Food Information, 6, 13-20. Retrieved November 13, 2018, from https://www-tandfonline-com.subzero.lib.uoguelph.ca/doi/pdf/10.1300/J108v06n02_03?needAccess=true.

2. Brown, A. (2018). Orange Marmalade. Food Network, USA. Retrieved November 13, 2018, from https://www.foodnetwork.com/recipes/alton-brown/orange-marmalade-recipe-2014440

3. Bates, R. P., Morris, J. R., & Crandall, P. G. (2001). Principles and practices of small - and medium - scale fruit juice processing. FAO, Rome. Retrieved October 3, 2018, from http://www.fao.org/docrep/005/y2515e/y2515e00.htm#toc

4. Makau, C. (2016, March 11). You can do so much with fruits for more value. Retrieved October 3, 2018, from https://www.nation.co.ke/business/seedsofgold/You-can-do-so-much-with-fruits-for-more-value/2301238-3113148-uvcaa3/index.html

5. Axe, J. (2018, August 28). Orange Oil — Enhance Your Immunity, Skin & Kitchen! Retrieved October 4, 2018, from https://draxe.com/orange-oil/

6. Giwa, S. O., Muhammad, M., & Giwa, A. (2018). Utilizing Orange Peels for Essential Oil Production. Journal of Engineering and Applied Sciences,13(1), 17-27. Retrieved November 13, 2018, from http://www.arpnjournals.org/jeas/research_papers/rp_2018/jeas_0118_6632.pdf

7. Taylor, R. (2018). How to Ferment Fruit to Make Alcohol. Leaf TV. Retrieved November 13, 2018, from https://www.leaf.tv/articles/how-to-ferment-fruit-to-make-alcohol/

8. Patel, V. (2007). Alcohol Use and Mental Health in Developing Countries. Annals of Epidemiology. 17, 87-92. Retrieved November 13, 2018, from https://journals-scholarsportal-info.subzero.lib.uoguelph.ca/pdf/10472797/v17i0005_s/s87_auamhidc.xml.

9. Parry, C. D. (2000). Alcohol Problems in Developing Countries: Challenges for the New Millennium. 2(4), 17-27. Retrieved November 13, 2018, from http://iogt.org/wp-content/uploads/2015/03/Alcohol-Problems-in-Developing-Countries-Challenges-for-the-New-Millennium.pdf

10. Bragg, L. (2018, March 1). Packaging Outlook 2018: Glass Packaging Overview. Retrieved November 13, 2018, from https://www.packagingstrategies.com/articles/90262-packaging-outlook-2018-glass-packaging-overview

11. Cocktail Builder's Blog. (2017, September 13). Storing Your Spirits: How Long Does Your Alcohol Really Last? Retrieved November 13, 2018, from https://blog.cocktailbuilder.com/how-long-does-alcohol-last/

12. Ortmann, G. F., & Hayward-Butt, P. R. (1994). Demand Analysis of Oranges in South Africa. 33(3), 141-144. Retrieved November 29, 2018, from http://ageconsearch.umn.edu/record/267716/files/agrekon-33-03-007.pdf

13. Nesamvuni, A. E., Tshikolomo, K. A., Mpandeli, N. S., & Makhuvha, L. (2017). Perceptions of Smallholder Farmers on Determinants of Competitiveness of the Citrus Industry in Vhembe District, Limpopo Province, South Africa. Journal of Human Ecology, 59(2-3), 62-71. Retrieved November 29, 2018, from https://www.tandfonline.com/doi/pdf/10.1080/09709274.2017.1335133?needAccess=true.