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<p>This study investigates the beta-carotene content of commonly discarded fruit and vegetable peels, with the aim of evaluating their potential as sustainable sources of provitamin A. β-carotene, a key antioxidant and precursor of vitamin A, plays a critical role in supporting immune function, vision, and skin health. Peels from various plant sources were collected and subjected to solvent extraction followed by spectrophotometric quantification. The results revealed a significant variation in β-carotene levels, with papaya peels exhibiting the highest concentration (9&#xa0;mg/100&#xa0;g), followed by musk melon (3&#xa0;mg/100&#xa0;g), while minimal levels were observed in red radish (0.009&#xa0;mg/100&#xa0;g). These findings highlight the value of food waste as a viable strategy to support functional foods, nutraceuticals, and cosmeceuticals. By repurposing nutrient-rich peels, this approach contributes to sustainable development goals and aligns with the principles of the circular economy in the food-processing sector.</p> Graphical Abstract <p></p>

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Sustainable waste valorization: harnessing beta-carotene from fruit and vegetable peels

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年6月9日

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  • Vidyalakshmi Alwar

摘要

This study investigates the beta-carotene content of commonly discarded fruit and vegetable peels, with the aim of evaluating their potential as sustainable sources of provitamin A. β-carotene, a key antioxidant and precursor of vitamin A, plays a critical role in supporting immune function, vision, and skin health. Peels from various plant sources were collected and subjected to solvent extraction followed by spectrophotometric quantification. The results revealed a significant variation in β-carotene levels, with papaya peels exhibiting the highest concentration (9 mg/100 g), followed by musk melon (3 mg/100 g), while minimal levels were observed in red radish (0.009 mg/100 g). These findings highlight the value of food waste as a viable strategy to support functional foods, nutraceuticals, and cosmeceuticals. By repurposing nutrient-rich peels, this approach contributes to sustainable development goals and aligns with the principles of the circular economy in the food-processing sector.

Graphical Abstract