Food Science and Technology Research
Online ISSN : 1881-3984
Print ISSN : 1344-6606
ISSN-L : 1344-6606
Effective Recovery of Polymethoxyflavonoids by Multi-stage Extraction of Citrus depressa
Makiko TAKENAKAHiroshi ONOHiroshi OKADOMEItaru SOTOMEKazuko NANAYAMAHidekazu SUMISeiichiro ISOBE
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2010 Volume 16 Issue 6 Pages 627-630


To effectively recover polymethoxyflavonoids (PMFs) from Citrus depressa fruits, different types of extractors were combined in two types of multi-stage extraction systems. The 2-stage extraction system utilized the caterpillar and twin-screw presses, and the 3-stage extraction system utilized the caterpillar, roller, and twin-screw presses. Material balance and distribution of PMFs, extraction rate, and electric power consumption of each stage and total system were evaluated. Compared with single extraction, multi-stage extraction improved the efficiency of PMF recovery in the juice from the fruit; there was no significant difference between the 2- and 3-stage extraction systems. More than 30% of the PMF content was recovered in the juice by these systems. The multi-stage extraction system for Citrus depressa allows production of second- and third-stage juices which contain higher concentration of PMFs and reduction of extraction residue.

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© 2010 by Japanese Society for Food Science and Technology
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