2种干燥方式对鸡油菌氨基酸和矿物质的影响

Effect of Two Drying Methods on Amino Acids and Minerals of Chanterelle

为研究自然晾干和60℃烘干2种干燥方式对林芝市布父村野生鸡油菌氨基酸和矿物质2种营养成分的影响,以布父村野生鸡油菌为材料,采用柱前衍生高效液相色谱法和比色法进行氨基酸含量的测定,以火焰原子吸收光谱法对钠、镁、钾、钙、铁、锌、铜、锰8种微量元素元素展开原子吸收光谱分析法测定。结果表明,干燥方式对鸡油菌氨基酸含量有影响,自然晾干的鸡油菌样与60℃烘干的鸡油菌的必需氨基酸与非必需氨基酸比值分别为61.48%和37.37%,60℃烘干的鸡油菌缺少异亮氨酸,破坏原本较好的蛋白质氨基酸组成,但鲜味氨基酸以及药用氨基酸量增多。干燥方式对钠、镁、钙、铁、锌、铜、锰含量有影响,60℃烘干的鸡油菌样和自然晾干的鸡油菌样相比,钙含量增加2.63倍,而铁和锰含量近乎降低为原来的1/2,干燥方式对钾含量无影响。

It was in order to study the effects of natural drying and 60℃drying on amino acids and minerals in wild chanterelle where from Bufu Village in Linzhi City.The amino acids were determined by pre-column derivatives high performance liquid phase and colorimetric methods.The natrium,magnesium,kalium,calcium,ferrum,zinc,cuprum and manganese were determined by atomic absorption spectroscopy,after drying at 60℃and drying naturally.The results showed that drying method had an effect on amino acid content of chanterelle.The ratios of essential amino acids to non-essential amino acids between naturally dried chanterelle and chanterelle dried at 60℃were 61.48%and 37.37%,respectively.Chanterelle dried at 60℃lacked isoleucine and destroyed the original amino acid composition of protein,but the amount of fresh amino acid and medicinal amino acid increased.The drying method had an effect on the contents of natrium,magnesium,calcium,ferrum,zinc,cuprum and manganese.Compared with the naturally dried chanterelle,the calcium content of chanterelle dried at 60℃increased by 2.63 times,while the iron and manganese contents decreased to almost half of the original.The drying method had no effect on the potassium content.