文档介绍：超声波提取荸荠皮抑菌物质的工艺研究
Study on extraction of antimicrobial substance from eleocharis tuberose peel with ultrasonic
张全军王泽南王翠蒋云舟
ZHANG Quan-jun WANG Ze-nan WANG Cui JIANG Yun-zhou
(合肥工业大学生物与食品工程学院,安徽合肥 230009)
(School of Biotechnology and Food Engineering, Hefei University of Technology, Hefei,Anhui 230009,China)
摘要:对超声波法提取荸荠皮中抑菌物质的工艺进行研究,讨论各单因素对抑菌效果的影响。经正交试验得到的工艺参数为:60目物料、乙醇浓度65%、料液比1:10、超声波提取时间50 min、提取次数1次。 mm。
关键词:超声波提取;抑菌物质;荸荠皮;抑菌圈直径
Abstract:The use of ultrasonic-assisted process was investigated for extraction of antimicrobial substance from Eleocharis tuberose peel. The effects of single factors on experimental results were discussed. on the basis of orthogonal test, it was shown that the optimal technological parameters were: material 60 mesh, ethanol 65%, 1:10 for ratio of material to liquid, 30min for ultrasonic time,extraction for one time. the inhibition zone for Escherichia coli and us aureus reached mm and mm.
Keywords: Ultrasonic extraction;Antimicrobial substance;Eleocharis tuberose peel;Inhibition zone
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基金项目:安徽省教育厅自然科学重点科研项目(项目编号:2006kj062A)
作者简介:张全军(1982-),男,合肥工业大学生物与食品工程学院在读研究生。E-mail:fdadrtg@
通讯作者:王泽南
收稿日期:2007-08-11
荸荠,又名马蹄,在我国南方大部分地区都有栽培。荸荠富含人体需要的多种营养成分,肉脆嫩多汁,是人们喜爱的果、蔬兼用食品。荸荠还有很好的医疗保健效果,据《中药大辞典》记载:荸荠性味甘、微寒、无毒,有温中益气,清热开胃,消食化痰之功效[1]。现代文献表明:荸荠果肉及其皮中含有不耐热的抑菌物质,一般统称为荸荠英。荸荠英中含有一定量的酚类、生物碱、有机酸、