冬虫夏草寄主幼虫不同产地主要食料的营养成分比较分析

Analysis Comparative of Nutritional Components in Rhizoma of Polygonum viviparum L.,Main Food of Insect of Cordyceps sinensis(Berk.)Sacc.

对重庆(渝)和四川(川)产珠芽蓼根茎的营养成分进行了对比分析。结果表明,渝产珠芽蓼根茎的灰分和总糖含量显著高于川产珠芽蓼根茎,水分和粗脂肪显著低于川产珠芽蓼根茎;渝产珠芽蓼根茎的K元素含量显著高于川产珠芽蓼根茎,Mg、Fe和Mn 3种元素的含量显著低于川产珠芽蓼根茎;K、Ca、Mg3种含量最多的元素排序中,渝产珠芽蓼为"K>Ca>Mg",川产珠芽蓼为"Mg>K>Ca"。渝产珠芽蓼根茎的水解精氨酸、组氨酸和蛋氨酸的含量分别高于川产珠芽蓼根茎,并且差异显著(P<0.05);渝产珠芽蓼根茎的游离精氨酸和游离谷氨酸的含量分别低于川产珠芽蓼根茎,并且差异显著(P<0.05);渝产珠芽蓼的精氨酸和蛋氨酸的总含量分别高于川产珠芽蓼,并且差异显著(P<0.05)。以上分析结果可能是渝产珠芽蓼饲养效果优于川产珠芽蓼的原因之一。这一结果为人工饲料的配制研究提供了理论基础。

Nutritional components in rhizoma of Polygomum viviparum L. which are produced in Chongqing and Sichuan province were analyzed. The result showed that the total sugar and the ash contents of which in Chongqing are more than that in Sichuan province, the moisture and the fat contents are less than that in Sichuan province; The content of K in Chongqing is more than that in Sichuan and the content of Mg, Fe and Mn is less than that in Sichuan; The taxis on element content with “K〉Ca〉Mg” in Chongqing is more in favor of the growth of the insect of Cordyceps s inensis （Berk.）Sacc. than that in Sichuan province （P〈 0.05）; The content of Arg, His and Met hydrolyzed in Chongqing is more than that in Sichuan province and that of Arg and Glu dissociated is less than that in Sichuan province separately（ P〈 0.05） ; The total content of Arg and Met, hydrolyzed and dissociated in Chongqing is more than that in Sichuan province（P〈 0.05）. The outcome above may be the one of the main reasons that the different effect is resulted in with feeding Polygonum viviparum L. produced in Chongqing and Sichuan province separately. This result will afford theoretical reference to the study on the artificial food of the insect of Cordyceps sinensis（Berk.） Sacc.