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Effects of drying methods on phytochemical compounds and antioxidant activity of physiologically dropped un-matured citrus fruits

2014; Elsevier BV; Volume: 60; Issue: 2 Linguagem: Inglês

10.1016/j.lwt.2014.09.001

1096-1127

Yujing Sun, Yan Shen, Donghong Liu, Xingqian Ye,

Pineapple and bromelain studies

Physiologically dropped un-matured citrus fruits have good potential as sources of different bioactive compounds and antioxidants. Drying is a good method to preserve the materials. The effects of three different drying methods (sun-drying, hot air-drying and freeze-drying) on phytochemical compounds and antioxidant activity of physiologically dropped un-matured citrus fruits were investigated. The results showed freeze-drying is good for retaining phenolic compounds, synephrine and antioxidants; hot air-drying is good for retaining flavonoids; and all three methods can be used for retaining limonoids. The results should serve as a guide for the industrial production of high-quality extraction materials for bioactive compounds.