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    Cashew Wastes Biomass in Tanzania Auditing and Characterization: A potential bioresource for production of value-added products

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    Date
    2025-06-30
    Author
    Mwema, Hadija
    Kassuwi, Shaaban
    Prosper, Mosha
    Mshandete, Anthony
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    Abstract
    Cashew waste biomass presents a valuable resource for production of value-added products. This study evaluated potential for valorization of cashew wastes (husks, apples and leaves) generated in Mtwara, Tanzania through integrating quantitative and laboratory analysis methods. Chemical composition of cashew waste analyzed were nitrogen, phosphorus, pH, moisture content, total organic matter, ash content, crude fiber, and conductivity. Nitrogen contents of cashew waste including husks, apples and leaves ranged between 1.46 – 2.58%, phosphorus was 0.03 – 0.38%, moisture content between 5.63-23.10%, and pH ranged between 4.44 -5.91. Solid wastes were characterized by crude fiber content in the range of 0.32-0.49 g, ash content between 6.65 – 14.24% and total organic matter content between 95-97%. Results showed that the annual generation of cashew wastes was estimated at 458,874 tons. Out of these, 66% were dried cashew apples, 33% cashew nut shells and 1% cashew husks. These wastes can be transformed into food, feed, bio-energy and bio-based products using bioconversion technologies in integrated and sustainable manner. A scheme for utilization of cashew waste into value added products has been proposed which contributes to environmental preservation. This approach offers a circular economic growth and aligns with global sustainable development goals by responsible consumption and production.
    URI
    https://dx.doi.org/10.4314/tjs.v51i2.7
    https://dspace.nm-aist.ac.tz/handle/20.500.12479/3178
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