Microwave-assisted aqueous enzymatic extraction of oil from pumpkin seeds and evaluation of its physicochemical properties, fatty acid compositions and antioxidant activities

文献类型: 外文期刊

第一作者: Jiao, Jiao

作者: Jiao, Jiao;Fu, Yu-Jie;Ma, Wei;Gai, Qing-Yan;Wei, Fu-Yao;Fu, Yu-Jie;Li, Zhu-Gang;Li, Xiao-Juan;Ma, Wei

作者机构:

关键词: Microwave-assisted aqueous enzymatic;extraction;Pumpkin {Cucurbita maxima) seed oil;Physicochemical properties;Fatty acid compositions;Antioxidant activities

期刊名称:FOOD CHEMISTRY ( 影响因子:7.514; 五年影响因子:7.516 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: Microwave-assisted aqueous enzymatic extraction (MAAEE) of pumpkin seed oil was performed in this study. An enzyme cocktail comprised of cellulase, pectinase and proteinase (w/w/w) was found to be the most effective in releasing oils. The highest oil recovery of 64.17% was achieved under optimal conditions of enzyme concentration (1.4%, w/w), temperature (44 ℃), time (66 min) and irradiation power (419 W). Moreover, there were no significant variations in physicochemical properties of MAAEE-extracted oil (MAAEEO) and Soxhlet-extracted oil (SEO), but MAAEEO exhibited better oxidation stability. Additionally, MAAEEO had a higher content of linoleic acid (57.33%) than SEO (53.72%), and it showed stronger antioxidant activities with the IC_(50) values 123.93 and 152.84, mg/mL, according to DPPH radical scavenging assay and p-carotene/linoleic acid bleaching test. SEM results illustrated the destruction of cell walls and membranes by MAAEE. MAAEE is, therefore, a promising and environmental-friendly technique for oil extraction in the food industry.

分类号: TS2`TS201.2

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