Chemical Profile, Quality and Antioxidant Properties of Palmitoleic Acid Rich Oil from Decaisnea insignis Seeds by Different Extraction Techniques

Four extraction techniques including enzyme-assisted supercritical carbon dioxide extraction (ESC-CO2), supercritical carbon dioxide extraction (SC-CO2), ultrasound-assisted extraction (UAE) and Soxhlet extraction (SE) were evaluated to efficiently extract the oil from Decaisnea insignis seeds in th...

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Published in:FOOD SCIENCE AND TECHNOLOGY RESEARCH 2019, Vol.25(6), pp.755-763
Main Authors: Wang, Qi, Huang, Jiayin, Shao, Hongjun, Zhou, Yuhao, Xia, Kangxuan, Huang, Feng, Zhang, Hong, Yang, Xingbin
Format: Article
Language:English
Subjects:
antioxidant activity
Antioxidants
Carbon dioxide
Decaisnea insignis
Edible oils
enzymatic treatment
Fatty acids
Lipids
Oils & fats
Organic chemistry
Palmitoleic acid
Phytosterols
Plant extracts
Scavenging
Seeds
supercritical carbon dioxide extraction
Supercritical gas extraction
Ultrasound
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Summary:Four extraction techniques including enzyme-assisted supercritical carbon dioxide extraction (ESC-CO2), supercritical carbon dioxide extraction (SC-CO2), ultrasound-assisted extraction (UAE) and Soxhlet extraction (SE) were evaluated to efficiently extract the oil from Decaisnea insignis seeds in this study. Lipid profiling by GC-MS confirmed seven fatty acids and six phytosterols in all oils obtained, in which palmitoleic acid (from 475.4 ± 12.0 by SE to 604.9 ± 26.1 mg/g oil by ESC-CO2) and β-sitosterol (from 35.6 ± 1.2 by SE to 60.9 ± 2.3 mg cholestanol equivalent/100 g oil by ESC-CO2) predominated, respectively. Furthermore, the oil yielded by ESC-CO2 displayed higher polyphenol content and stronger DPPH and ABTS radical scavenging capacities. These results suggested that D. insignis seed oil is considered an alternative source of palmitoleic acid, and ESC-CO2 could be explored as an environmentally friendly technology for extracting plant oil.
ISSN:1344-6606
1881-3984
DOI:10.3136/fstr.25.755