详细信息
文献类型:期刊文献
中文题名:三种昆虫甲壳素提取与分析
英文题名:Study on Extraction of Chitin from Three Insects
作者:郭宝华[1,2] 何钊[2] 冯颖[2] 陈晓鸣[2]
第一作者:郭宝华
机构:[1]国际竹藤网络中心,北京100102;[2]中国林业科学研究院资源昆虫研究所,国家林业局资源昆虫培育与利用重点实验室,云南昆明650224
年份:2008
卷号:21
期号:4
起止页码:561-565
中文期刊名:林业科学研究
外文期刊名:Forest Research
收录:CSTPCD;;Scopus;北大核心:【北大核心2004】;CSCD:【CSCD2011_2012】;
基金:“十一五”科技支撑计划重点项目“物产资源高效利用关键技术研究与示范”项目(2006BAD06B07);国家林业局引进国外先进农业技术项目“资源昆虫体内活性物质诱导及提取技术引进”(20064116)的部分研究内容
语种:中文
中文关键词:蝉蜕;中华稻蝗;喙尾琵琶甲;甲壳素
外文关键词:Periostracum cicadae ; Oxya chinensis ; Blaps rynchopetera ; Chitin
分类号:S865.4
摘要:以含氮量和灰分含量为指标,采用酸碱法对蝉蜕、中华稻蝗和喙尾琵琶甲中甲壳素的提取方法进行了比较研究,确定了三种昆虫最佳提取甲壳素的方法:从蝉蜕中提取甲壳素方法为80℃下与NaOH(6%)反应1 h脱蛋白、再在常温下与HCl(0.2 mol.L-1)反应20 min,脱除无机盐;从中华稻蝗中提取甲壳素的方法为80℃下与NaOH(7%)反应1 h脱蛋白,再在常温下与HCl(0.3 mol.L-1)反应10 min,脱除无机盐;从喙尾琵琶甲中提取甲壳素的方法为80℃下与NaOH(7%)反应5 h脱蛋白,再在常温下与HCl(0.2 mol.L-1)反应10 min,脱除无机盐;红外光谱与X-射线衍生分析表征的结果表明,三种昆虫中提取的甲壳素与标样一致。
The extraction conditions of chitin from Periostracum Cicadae, Oxya chinensis (Thunberg), Blaps rynchopetera Fairmaire were optimized by acid--alkali method laying a strong emphasis on the effects of NaOH and HCI on the removal of protein and inorganic salt. The conditions of extractions of chitin from Periostracum Cicadae were: (1)Removing protein: processed the sample with the solution of 6% NaOH ,80℃, keeping for 1 hour; (2) Removing inorganic salt: put the sample in the solution of 0. 2 mol·L^-1 HCI, keeping for 20 min at room temperature. Extractions from O. chinensis were ( 1 ) Removing protein : 7 % NaOH, 80 ℃, keeping for 1 hours ; (2) Removing inorganic salt: put the sample in the solution of 0. 3 mol·L^-1 HC1, keeping for 10 min at room temperature. Extractions from B. rynchopetera were (1) 7% NaOH,80 ℃ ,keeping for 5 h; (2) 0.2 mol·L^-1 HCl, keeping for 10 min at room temperature. The structures of chitin extracting from the three insects were the same as standards according to the IR and X-ray diffraction spectra.
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