EFFECTS OF HIGH PRESSURE OR ULTRASONIC TREATMENT ON EXTRACTION YIELD AND ANTIOXIDANT ACTIVITY OF PERICARP TISSUES OF LONGAN FRUIT

被引：39
|
作者：
Prasad, K. N. [1 ]
Yang, B. [1 ]
Zhao, M. [2 ]
Sun, J. [1 ]
Wei, X. [1 ]
Jiang, Y. [1 ]
机构：
[1] Chinese Acad Sci, S China Bot Garden, Guangzhou 510650, Guangdong, Peoples R China
[2] S China Univ Technol, Coll Light Ind & Food Sci, Guangzhou 510650, Guangdong, Peoples R China
来源：
JOURNAL OF FOOD BIOCHEMISTRY | 2010年 / 34卷 / 04期
基金：
中国国家自然科学基金;
关键词：
HIGH HYDROSTATIC-PRESSURE; DIMOCARPUS-LONGAN; FLAVONOIDS; PHENOLICS; PRODUCTS; RECOVERY; ACID;
D O I：
10.1111/j.1745-4514.2010.00335.x
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
High pressure extraction (HPE) and ultrasonic extraction (UE) has exhibited great potential for extracting bioactive compounds from plant tissues. Experiments were conducted to comparatively investigate the effects of 500 MPa HPE, 40 kHz UE and convention extraction (CE) on extraction yield, total phenolic content and antioxidant activity from longan fruit pericarp. The antioxidant activities of these extracts were then analyzed employing various antioxidant model systems including 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical scavenging activity, reducing power, total antioxidant capacity, superoxide anion radical scavenging activity and inhibitory ability against lipid peroxidation. In addition, three phenolic compounds, namely gallic acid, corilagin and ellagic acid, were identified and quantified using the high-performance liquid chromatography method. Compared with CE and UE samples, HPE sample exhibited higher extraction efficiency in terms of extraction yield, phenolic content and antioxidant activity.
引用
收藏
页码：838 / 855
页数：18
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