摘要
A biorefinery process was developed in this study to obtain bioactive compounds and bio-oil from Camellia oleifera shells.Four different extraction techniques(water,ethanol,ultrasound-assisted deionized water,and ultrasound-assisted ethanol)were utilized to extract tea saponin and tannin from C.oleifera shells.Results showed that ethanol had better extraction capacity than did deionized water,and ultrasound could promote the dissolution of tannin and tea saponin in solution.The thermogravimetric curves of the samples treated under the four conditions moved toward high temperatures.This phenomenon indicated the thermal stability of the residue was significantly improved.The pretreatment showed a slight effect on the chemical compositions of bio-oil.Specifically,the samples treated with ethanol and ultrasound-assisted deionized water contained higher phenol contents(81.07%and 81.52%,respectively)than the other samples.The content of organic acid decreased with an increase in the phenol content.
基金
support from the National Natural Science Foundation of China(No.21766019)
The Key Research and Development Program of Jiangxi Province(20171BBF60023)
China Scholarship Council(201806820035)
Science and Technology Research Project of Jiangxi Province Education Department(No.GJJ150213)
Research Project of State Key of Food Science and Technology(SKLF-ZZB-201722).
作者简介
Yunpu Wang,PhD,Associate Professor,research interests:biomass conversion and utilization,Email:wangyunpu@ncu.edu.cn;Linyao Ke,Undergraduate student,research interests:food science and engineering,Email:2964873235@qq.com;Qi Yang,Undergraduate student,research interests:food science and engineering,Email:731618236@qq.com;Yujie Peng,Undergraduate student,research interests:food science and engineering,Email:412558982@qq.com;Yanzhe Hu,Undergraduate student,research interests:food science and engineering,Email:136164457@qq.com;Leilei Dai,PhD,research interests:food science and engineering,Email:964255022@qq.com;Lin Jiang,Master,research interests:food science and engineering,Email:964255022@qq.com;Qiuhao Wu,Master,research interests:food science and engineering,Email:1142989483@qq.com;Roger Ruan,PhD,Professor,research interests:bioproducts and biosystems engineering,Email:ruanx001@umn.edu;Guiming Fu,PhD,Professor,research interests:research interests:food science and engineering,Email:fuguiming@ncu.edu.cn;Corresponding author:Yuhuan Liu,PhD,Professor,research interests:bioproducts and biosystems engineering,Engineering Research Center for Biomass Conversion,Ministry of Education,Nanchang University,Nanchang 330047,China.Tel:+86-791-88333281,Email:liuyuhuan@ncu.edu.cn.
