Recent advances in sustainable extraction of plant pigments from fruit and vegetable peel waste for smart packaging applications in food freshness monitoring

Food and Humanity Pub Date : 2025-05-27 DOI:10.1016/j.foohum.2025.100651

S. Deotale , N. Bhanu Prakash Reddy , K. Vivek , R. Rajam , P.N. Gururaj , P. Thivya

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Abstract

The increasing volume of fruit and vegetable peel waste (FVPW), a by-product of rising horticultural production and processing, presents a significant opportunity for value addition in food technology. Rich in bioactive compounds such as anthocyanins, betalains, carotenoids, and chlorophylls, FVPW serves as a promising source of natural pigments. This review focuses on the extraction of these pigments using conventional (solvent extraction, maceration) and advanced techniques (ultrasound-assisted, microwave-assisted extraction), and their subsequent application in intelligent food packaging systems. Specifically, these pigments can function as pH-sensitive colorimetric indicators to monitor spoilage and freshness in perishable foods. The integration of FVPW-derived pigments into biopolymer-based films offers a dual benefit, enhancing packaging functionality while contributing to environmental sustainability by reducing agro-industrial waste. This review underscores the potential of pigment-based sensors from FVPW in developing next-generation active and smart packaging solutions. Utilizing FVPW pigments in such innovations can help reduce food waste, minimize losses, and reduce their environmental impact.

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从水果和蔬菜皮废物中可持续提取植物色素在食品新鲜度监测中的智能包装应用的最新进展

水果和蔬菜果皮废物（FVPW）的数量不断增加，这是园艺生产和加工的副产品，为食品技术的增值提供了一个重要的机会。富含生物活性化合物，如花青素、甜菜素、类胡萝卜素和叶绿素，FVPW是一种有前途的天然色素来源。本文综述了这些色素的传统提取方法（溶剂提取、浸渍法）和先进提取技术（超声辅助、微波辅助提取）及其在智能食品包装系统中的应用。具体来说，这些色素可以作为ph敏感的比色指标来监测易腐食品的腐败和新鲜度。将fvpw衍生的颜料整合到基于生物聚合物的薄膜中提供了双重好处，增强了包装功能，同时通过减少农业工业废物为环境可持续性做出贡献。这篇综述强调了FVPW基于颜料的传感器在开发下一代主动和智能包装解决方案方面的潜力。在这些创新中使用FVPW色素可以帮助减少食物浪费，最大限度地减少损失，并减少其对环境的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Food and Humanity

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