食品与机械2016，Vol.32Issue(11)：111-115,5.DOI:10.13652/j.issn.1003-5788.2016.11.025
灵香草精油的提取及其防腐保鲜效果
Study on extraction of essential oi l from Lysimachia foenum-graecum Hance and its preservation effect on longan
摘要
Abstract
Essential oil was extracted from Lysimachia foenum-grae-cum Hance using steam distillation method. The extraction conditions of essential oil were optimized by orthogonal experimental design,and its preservation on longan was studied.The results showed that the optimum extraction technology were:the concentra-tion of sodium chloride 4%,the distilling time was 6 h,and the solid-liquid ratio of 1 ︰10 (g/mL).Under the condition,the extrac-tion rate of essential oil reached 0.1 67 2%.The preservation results indicated:the antibacterial effects of 4 treatments,the content of Vi-tamin C and soluble solid decreased gradually,and weight loss and corruption rate of longan increased with the extension of the time.Its ability of antibacterial effects and preservation were followed:0.5%essential oil > the mixture of potassium sorbate and essential oil >0.05% potassium sorbate >75% ethanol.It has better preservation effect on longan of essential oil than potassium sorbate.关键词
灵香草/精油/提取优化/防腐保鲜Key words
Lysimachia foenum-graecum Hance/essential oil/extrac-tion and optimization/preservation引用本文复制引用
闫旭宇,李玲,陈婷,吴媛娇..灵香草精油的提取及其防腐保鲜效果[J].食品与机械,2016,32(11):111-115,5.基金项目
湘南优势植物资源综合利用湖南省重点实验室开放基金(编号:XNZW16C02) （编号:XNZW16C02）
永州市指导性科技计划项目(编号:2015-10) （编号:2015-10）
