Analysis on Flavonoid Yield in Buckweat with Different Distilling Methods

Abstract

Abstract: The flavonoid yield in buckwheat effected by temperature, time and material quanlity in water and methonal respective was studied with UV-VIS and L9(33)orthogonal design. Results showed that the optimum condition were A3B2C1 and A2B3C1 correspondingly. The flavonid yield was improved obvious with three factors asdended simultaneous in water and also with water asdended under boiled temperature, whereas the optimum methanol extraction temperature was 75℃. The influence factors of water temperature were higher than the time and buckwheat quanlity and methanol extracting time than temperature and buckwheat quanlity, though higher, the R of time was proximate with methanol temperature.

Key words: , buckweat； flavonoid； rutin； UV-VIS； distilling methods； orthogonal design；

GUO Jing-Bo, Wang-Xiang-Dong, ZHANG Yan, SHEN Ke-Min. Analysis on Flavonoid Yield in Buckweat with Different Distilling Methods[J]. FOOD SCIENCE, 2006, 27(10): 433-436.

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Analysis on Flavonoid Yield in Buckweat with Different Distilling Methods

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