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Antioxidative and Antihypertensive Effects of Lycii fructus Extracts
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구기자(Lycii fructus) 추출물의 항산화와 항고혈압 효과

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Academic journal
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Journal
The korean Society of Food Science and Nutrition Journal of the Korean Society of Food Science and Nutrition Vol.34 No.9 KCI Accredited Journals SCOPUS
Published
2005.11
Pages
1,308 - 1,313 (6page)

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Antioxidative and Antihypertensive Effects of Lycii fructus Extracts
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The physiological activity of Lycii fructus extracts were examined. Total phenolic contents in the ethanol extracts (9.5 ㎎/g) of Lycii fructus were higher than that of water extracts (8.7 ㎎/g). The chlorogenic acid (1.7 ㎍ in water extracts and 1.3 ㎍ in 60% ethanol extract) was the most abundant phenolic compound as analyzed by HPLC. The ABTS [2,2'-azinobis(3-ethylbenzothiaznoline-6-sulfornic acid)] radical decolorization electron donating ability (DPPH) and antioxidant protection factor (PF) were determined for extracts from Lycii fructus. Water extract (76.7% on ABTS, 92.6% on DPPH and 1.1 on PF) showed higher inhibition rate than 60% ethanol extracts (52.8%, 88.8% and 1.0). Thiobarbituric acid reactive substance (TBARS) was determined as 1.5×10-³ μM in 60% ethanol extract. Ethanol extracts was more effective in decreasing TBARS than water extracts. The water extracts from Lycii fructus had higher angiotensin converting enzyme (ACE) inhibition activity than ethanol extracts. The result will be useful for functional foods application and understanding the physiological activities of Lycii fructus.

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References (70)

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Lee BC, Park JS, Kwak TS, Moon CS. 1998. Variation of chemical properties in collected boxthom varieties. Korean J Breed 30: 267-272. google schola Science, the encyclopedia publishing company it compiles. 1999. Ingredient and use of medical plant. From January angle, Seoul. google schola Park YJ, Kim MH, Bae SJ. 2002. Enhancement of anticarcinogenic effect by combination of Lycii fructus with vitamin C. J Korean Soc Food Sci Nutr 31: 143-148. google schola Park JS, Park JD, Lee BC, Choi KJ. 2000. Effects of extracts from various parts of Lycium chinense Mill. on proliferation of mouse spleen cells. Korean J Medicinal Crop Sci 8: 291-296. google schola Do JR, Kim SB, Park YH, Kim DS. 1993 Angiotensin-I converting enzyme inhibitiory activity by the component of traditional tae material. Korean J Food Sci Technol 25: 456-460. google schola

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