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Bio-Valorization of Sweet Potato Bagasse into Food Additives, Feeds, and Fuels

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Roots, Tubers, and Bulb Crop Wastes: Management by Biorefinery Approaches

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Abstract

Sweet potato is superior to other carbohydrate sources and rich in vitamins, minerals, dietary fiber, and protein content. The crop generates much bagasse that currently has little utilization and goes waste into landfills and water bodies. Leaves, vines, and tuber peels contain polyphenols and carotenoids that could be used as antioxidants and food colorants. Several useful bioactive compounds, including polyphenols, vitamins, fibers, enzymes, oils, and others, can be recovered from the sweet potato wastes produced during the starch manufacturing process. The current chapter discusses various waste streams produced during the stages of harvesting, post-harvest handling, starch extraction, and alcoholic fermentation, the presence of phenolic and bioactive compounds in these waste streams, various extraction techniques, and the potential for converting these valuable materials into various value-added products with higher consumer acceptance.

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Abbreviations

DM:

Dry matter

DW:

Dry weight

SPPS:

Sweet potato peels

SPW:

Sweet potato wastes

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Authors and Affiliations

  1. Department of Post Harvest Management, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India

    Ivi Chakraborty & Pinky Maity

  2. Department of Vegetable Science, Faculty of Horticulture, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India

    Arup Chattopadhyay & Subhradeep Pramanik

  3. Department of Agronomy, Faculty of Agriculture, Bidhan Chandra Krishi Viswavidyalaya, Nadia, West Bengal, India

    Aditi Pahari, Hirak Banerjee & Rajib Nath

  4. ICAR-Central Tuber Crops Research Institute (Regional Centre), Bhubaneswar, Odisha, India

    Ramesh C. Ray

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  1. Ivi Chakraborty
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  1. Microbiology, ICAR- Central Tuber Crops Research Institute, Regional Center, Bhubaneswar, Odisha, India

    Ramesh C Ray

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Chakraborty, I. et al. (2024). Bio-Valorization of Sweet Potato Bagasse into Food Additives, Feeds, and Fuels. In: Ray, R.C. (eds) Roots, Tubers, and Bulb Crop Wastes: Management by Biorefinery Approaches . Springer, Singapore. https://doi.org/10.1007/978-981-99-8266-0_7

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