摘要
为研究不同的干燥方法对蛹虫草子实体活性成分的影响,采用烘干干燥和冷冻干燥方法,选取4株不同栽培性状的菌株(菌株30,40,156和159),研究不同干燥方法对蛹虫草子实体中主要活性成分含量的影响。结果表明:冷冻干燥有利于保护蛹虫草子实体多糖,其多糖含量(菌株30:2.83%,菌株40:5.76%,菌株156:4.63%,菌株159:2.98%)显著高于烘干干燥处理(菌株30:1.52%,菌株40:4.80%,菌株156:2.85%,菌株159:1.90%)。除类胡萝卜素含量低的白化菌株外,冷冻干燥条件下子实体类胡萝卜素含量(菌株30:5013.75μg·g-1,菌株40:2478.75μg·g-1,菌株156:3809.25μg·g-1)显著高于烘干干燥(菌株30:3847.50μg·g-1,菌株40:2122.50μg·g-1,菌株156:3098.25μg·g-1)。两种干燥方法对蛹虫草子实体腺苷和甘露醇含量的影响没有显著性差异,但是两种干燥方法对虫草素含量和超氧化物歧化酶(superoxide dismutase,SOD)酶活性的影响则存在菌株差异。
Effects of two different drying methods, freeze-drying and hot air-drying, on the content of bioactive compound of Cordyceps militaris fruiting bodies were studied using four different strains （strain 30, 40, 156 and 159）. It was indicated that the polysaccharide contents （30： 2.83%, 40： 5.76%, 156： 4.63%, 159： 2.98%） of freeze-dried C. militaris fruiting bodies were significantly higher than those （30： 1.52%, 40： 4.80%, 156： 2.85%, 159： 1.90%） of hot air-dried fruiting bodies. Hot-air drying resulted in significant decrease in the content of earotenoids except for the fruiting bodies of the albino strain. The contents of carotenoids from three normal strains were 5013.75μg·g^-1 （strain 30）, 2478.751μg·g^-1 （strain 40） and 3809.25μg·g^-1 （strain 156） by freeze-drying method and through hot air-drying method were 3847.50μg·g^-1 （strain 30）, 2122.50μg·g^-1 （strain 40）, 3098.25μg·g^-1 and （strain 156）. There was no significant difference on the content of adenosine and mannitol in the fruiting bodies with two drying methods. The influences of two drying methods on the cordycepin content and the superoxide dismutase （SOD） activity were different among the four strains.
出处
《沈阳农业大学学报》
CAS
CSCD
北大核心
2013年第6期761-765,共5页
Journal of Shenyang Agricultural University
基金
国家自然科学基金项目(31100014)
关键词
蛹虫草
活性成分含量
烘干干燥
冷冻干燥
Cordyceps militaris
bioactive compound content
hot air-drying
freeze-drying
