Comprehensive evaluation on tailor-made deep eutectic solvents (DESs) in extracting tea saponins from seed pomace of Camellia oleifera Abel
文献类型： 外文期刊
作者： Tang, Yayuan 1 ; He, Xuemei 1 ; Sun, Jian 1 ; Liu, Guoming 1 ; Li, Changbao 1 ; Li, Li 1 ; Sheng, Jinfeng 1 ; Zhou, Zhugu 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Agrofood Sci & Technol Res Inst, 174 East Daxue Rd, Nanning 530007, Peoples R China
2.Guangxi Key Lab Fruits & Vegetables Storage Proc, 174 East Daxue Rd, Nanning 530007, Peoples R China
关键词： Tea saponin; Deep eutectic solvent; Camellia oleifera seed pomace; Component identification; Bioactivity
期刊名称：FOOD CHEMISTRY （ 影响因子：7.514； 五年影响因子：7.516 ）
ISSN： 0308-8146
年卷期： 2021 年 342 卷
页码：
收录情况： SCI
摘要： Tea saponins from Camellia oleifera Abel. seed pomace are new sources of commercial saponins. This study established an eco-friendly and efficient extraction method for tea saponins from C. oleifera seed pomace. A ternary deep eutectic solvent (DES) composed of L-proline, glycerol and sucrose (4:10:1 in molar ratio, abbreviated as PGS-5) achieved the highest extraction yield of tea saponins among all screened DESs. A maximum extraction yield of 23.22 +/- 0.28% was obtained using PGS-5 under the optimized extraction time, DES concentration and liquid-solid ratio. Through ultraviolet, Fourier transform infrared spectroscopy and ultrahigh performance liquid chromatography-Q Exactive HF mass spectroscopy, as well as analyses of antioxidant and antimicrobial activities, it was determined that extracted saponins did not altered during processing. Therefore, PGS-5 can serve as a solvent to obtain stable and beneficial tea saponins from C. oleifera seed pomace.
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