Comparative study on conventional, ultrasonication and microwave assisted extraction of γ-oryzanol from rice bran

被引：25
作者：
Kumar, Pramod [1 ,2 ]
Yadav, Devbrat [3 ]
Kumar, Pradyuman [1 ]
Panesar, Paramjeet Singh [1 ]
Bunkar, Durga Shankar [3 ]
Mishra, Diwaker [3 ]
Chopra, H. K. [4 ]
机构：
[1] St Longowal Inst Engn & Technol, Dept Food Engn & Technol, Longowal 148106, Punjab, India
[2] Natl Dairy Res Inst, Div Dairy Chem, Karnal 132001, Haryana, India
[3] Banaras Hindu Univ, Ctr Food Sci & Technol, Varanasi 221005, Uttar Pradesh, India
[4] Natl Dairy Res Inst, Dairy Technol Div, SRS, Adagodi 530030, Bangluru, India
来源：
JOURNAL OF FOOD SCIENCE AND TECHNOLOGY-MYSORE | 2016年 / 53卷 / 04期
关键词：
gamma-oryzanol; Ultrasonication; Microwave assisted extraction; Total phenolic content; ANTIOXIDANT ACTIVITY; OIL; SOLVENT; L; STABILIZATION; ISOPROPANOL; QUALITY; HEXANE; YIELD;
D O I：
10.1007/s13197-016-2175-2
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
In present study, conventional, ultrasonic and microwave assisted extraction methods were compared with the aim of optimizing best fitting solvent and method, solvent concentration and digestion time for high yield of gamma-oryzanol from rice bran. Petroleum ether, hexane and methanol were used to prepare extracts. Extraction yield were evaluated for giving high crude oil yield, total phenolic content (TPC) and gamma-oryzanol content. Gas chromatography-mass spectrophotometry was used for the determination of gamma-oryzanol concentration. The highest concentration of gamma-oryzanol was detected in methanolic extracts of microwave treatment (85.0 ppm) followed by ultrasonication (82.0 ppm) and conventional extraction method (73.5 ppm). Concentration of gamma-oryzanol present in the extracts was found to be directly proportional to the total phenolic content. A combination of 80 % methanolic concentration and 55 minutes digestion time of microwave treatment yielded the best extraction method for TPC and thus gamma-oryzanol (105 ppm).
引用
收藏
页码：2047 / 2053
页数：7
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