Identification and Quantification of Flavonoids in Korean Wild Grape (Meoru grape, Vitis coignetiae) and Its Pomace

• 발행기관: 한국자원식물학회
• 저자명: Kwan-Seob Shim Da-Rae Kang Seong-Bok Park Jong Hyuk Park Yi Hyung Chung Young-Hee Kang Daekeun Shin
• 간행물 정보: 『한국자원식물학회지』제27권 제6호, 650~659쪽, 전체 10쪽
• 주제분류: 농수해양 > 기타농수해양
• 파일형태: PDF
• 발행일자: 2014.12.30

영문 초록

Large quantities of Korean wild grape (Vitis coignetiae, KWG) pomace, a by-product of grape juice and wine manufacture, are generated annually, and disposal cost of KWG pomace is now increasing. Therefore, this study was conducted to determine total polyphenol, flavonoid, and anthocyanin content in whole KWG, KWG skin and KWG pomace and to identify and quantify flavonoids found in whole KWG and KWG pomace using LC/MS/MS. Spectral analysis showed high total polyphenol and flavonoid in KWG skin extracted with 75% ethanol (p < 0.05). KWG pomace had higher amount of total polyphenol, flavonoid and anthocyanin than whole grape (p < 0.05). Sixteen flavonoids were identified, but only 10 flavonoids were quantifiable from whole KWG and KWG pomace. Both epicatechin and rutin were the major flavonoids, and 521 or 147 ng/g of epicatechin (p < 0.05) and 305 or 110 ng/g of rutin (p > 0.05) were found in whole KWG and KWG pomace, respectively. The results show that KWG pomace is a very rich source of flavonoids, thus KWG pomace can be used as a functional food additive. Plans to include KWG pomace in food production are necessary.

목차

Introduction

Materials and Methods

Results and Discussion

Acknowledgment

References

키워드

By-product Ethanol Korean wild grape skin LC/MS/MS Polyphenol