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  • Title: Polymethoxyflavones from citrus peel: advances in extraction methods, biological properties, and potential applications.
    Author: Peng Q, Zhang Y, Zhu M, Bao F, Deng J, Li W.
    Journal: Crit Rev Food Sci Nutr; 2024; 64(16):5618-5630. PubMed ID: 36530054.
    Abstract:
    Citrus peel, as an effective component of citrus by-products, contains a large number of natural active components, including pectin, vitamins, dietary fiber, essential oil, phenolic compounds, flavonoids, and so on. With the development of the circular economy, citrus peel has attracted extensive concern in the food industry. The exploitation of citrus peel would assist in excavating potential properties and alleviating the environmental burden. Polymethoxyflavones (PMFs) exist almost in citrus peel, which have remarkable biological activities including antioxidant, anti-inflammatory, anti-cancer, and anti-obesity. Therefore, PMFs from citrus peel have the potential to develop as dietary supplements in the near future. Collectively, it is essential to take action to optimize the extraction conditions of PMFs and make the most of the extracts. This review mainly compiles several extraction methods and bioactivities of PMFs from citrus peel and introduces different applications including food processing, pharmaceutical industry, and plant rhizosphere to develop better utilization of citrus PMFs. Polymethoxyflavones (PMFs) represent sustainable bioactive compounds that profit for circular economy.Valorization of citrus peel PMFs will bring value-added environmental benefits.Novel techniques improve property and extraction efficiency of PMFs.PMFs obtained from citrus peel could be applied to tea or bakery food processing and pharmaceutical industry.
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