期刊论文

中文

武汉轻工大学学报

2095-7386

2019

38

01

9-16

10.3969/j.issn.2095-7386.2019.01.002

湖北省教育厅科学技术研究计划青年人才项目(Q20181801)；

本校为第一机构

桂花富含天然抗氧化成分,在天然抗氧化剂领域具有良好的开发应用潜力。本研究以制取香料浸膏后的桂花残渣为原料,以乙醇为溶剂提取桂花中的抗氧化物质,得到桂花乙醇粗提物,并对该粗提物开展溶解性能、pH稳定性和热稳定性等理化性质分析。随后我们运用硅胶柱层析技术,对该粗提物进行极性分级,并对不同分级产物开展体外抗氧化活性的比较分析。在此基础上,进一步对具有良好抗氧化活性的分级产物开展了初步的结构鉴定,结果表明:桂花乙醇萃取物在溶解度参数大于10的溶剂中有较大的溶解度;其在中性、酸性和温度低于60℃的条件下较为稳定;此乙醇粗提物经硅胶柱层析分离可以得到3个分级产物。体外抗氧化...

Osmanthus fragrans is rich in natural antioxidants,which has great potential in the fields of natural antioxidants.In this study,the osmanthus residue after extracting the flavor extract was used as the raw material,and antioxidant substances in the residue were extracted with ethanol.The ethanol extract of osmanthus residue(EEOR)was obtained and characterized by solubility test,pH stability test and heat stability test,respectively.Subsequently,silica gel column chromatography technology was used to separate different fractions of EEOR by pola...