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Assessment of oil extracted from Gardenia fruits by different commercial extraction methods for potential industrial applications

文献类型： 外文期刊

作者： Liu, Haocheng 1 ; Wen, Jing 1 ; Huang, Guodong 3 ; Yuan, Zhong 4 ; Yang, Jiguo 2 ; Wu, Jijun 1 ; Yu, Yuanshan 1 ; Hu, Tenggen 1 ; Xu, Yujuan 1 ;

作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Argi Food Res Inst, Key Lab Funct Foods, Minist Agr & Rural Affairs,Guangdong Key Lab Agr, 133 Yiheng St,Dongguanzhuang Rd, Guangzhou 510610, Peoples R China

2.South China Univ Technol, Sch Food Sci & Engn, Guangzhou 510641, Peoples R China

3.Agr & Rural Bur Gaoan City, Gaoan 330899, Jiangxi, Peoples R China

4.Jiangxi Ruilong Pharmaceut Co Ltd, Gaoan 336000, Jiangxi, Peoples R China

关键词： Gardenia fruit oil; Cold pressed extraction; Subcritical butane fluid extraction; Oil stability; Oil quality characteristics

期刊名称：INDUSTRIAL CROPS AND PRODUCTS （ 影响因子：6.449； 五年影响因子：6.508 ）

ISSN： 0926-6690

年卷期： 2022 年 187 卷

页码：

收录情况： SCI

摘要： Gardenia fruit is an extraordinary functional oil-bearing material product with few research on its potential for the direct production of industrial oil-bearing products. This study compared the physicochemical properties, lipid properties and thermal/oxidative stability of gardenia fruit oil produced by subcritical butane extraction (SBE) and cold-pressed extraction (CPE). The results indicated that the gardenia oil extracted by the above two methods had excellent physicochemical properties; where C18:2, C18:1 and C18:3 were dominant fatty acids in the fruit oil. The infrared spectrum showed high-intensity bands at 3009 cm(-1)-2855 cm(-1) and 1746 cm(-1), representing chemical groups of total oil and fat and unsaturated fatty acid (UFAs). Indexes such as atherogenic index (AI), thrombotic index (TI) and hypocholesterolemic/hypercholesterolemic fatty acids (HH) revealed that gardenia oil might benefit human health by lowering total cholesterol. The oil contained 7 kinds of phytosterols (dominated by beta-sitosterol) and a high level of squalene, vitamin E, carotenoids, polyphenols and total flavonoids. It also had advantageous initial/maximum degradation temperatures and stable oxidative induction time, which suggested its potential as a raw material for edible products, chemical and pharmaceutical industries. The oil produced by SBE was superior to the former (P < 0.05) in terms of oil extraction rate, concomitant product content and thermal/oxidative stability. This indicated that the SBE technology was an ideal alternative for the industry to produce gardenia oil with very good physiological activity.

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