Lee, Jeong-Hwan, Kim, Seung-Deok, Lee, Ja-Young, Kim, Kyung-Nam, Kim, Hyun-Su
언어
영어(ENG)
URL
https://www.earticle.net/Article/A78712
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원문정보
초록
영어
Three flavonoid compounds - quercetin, luteolin, and kaempferol - were analyzed from two commercially available concentrated pomegranate extracts produced in Turkey and Italy, respectively. The samples were freeze-dried and hydrolyzed by 0.4 M hydrochloric acid in 50% ethanol at 80℃. HPLC (high-performance liquid chromatography) with DAD (diode array detection) at a wavelength of 260 nm was used for the detection of the three flavonoids. The detection limits of the three compounds were in hundreds of picograms and the signal-to-noise ratio ranged from 4 to 5: quercetin: >308 pg, s/n=4.0; luteolin: >262 pg, s/n=4.5; kaempferol: >688 pg, s/n=5.0. Quercetin, but not luteolin and kaempferol, was detected in the both pomegranate extracts. The concentrations of quercetin were 49.7 ug/g and 27.7 ug/g in the two pomegranate extracts made in Turkey and Italy, respectively.
목차
Abstract Introduction Materials and Methods Results and Discussion References
키워드
pomegranatequercetinflavonoidHPLC
저자
Lee, Jeong-Hwan [ Institute of Food and Culture Research, Pulmuone Co., Ltd. ]
Corresponding author
Kim, Seung-Deok [ Institute of Food and Culture Research, Pulmuone Co., Ltd. ]
Lee, Ja-Young [ Institute of Food and Culture Research, Pulmuone Co., Ltd. ]
Kim, Kyung-Nam [ Institute of Food and Culture Research, Pulmuone Co., Ltd. ]
Kim, Hyun-Su [ Institute of Food and Culture Research, Pulmuone Co., Ltd. ]