新引种褐色毛木耳的营养成分分析与评价

摘要

Auricularia polytricha is an economically important mushroom species in southern China.Nutritional compositions were compared between normal color and brown color variant groups.According to national standards,nutrition in brown species and normal species of Auricularia polytricha were compared.Results showed that the contents of protein,reducing sugar,vitamin B1 and vitamin B2 of Auricularia polytricha is significantly lower than brown species.The contents of E/P value and Fe of Auricularia polytricha is significantly higher than brown species.But results on fatty,crude ash,dietary fiber,energy maintained similar between them.Both of them contained more than 18 kinds of amino acid.The content of each amino acid,essential amino acids,no-essential amino acids,essential amino acids for child,all amino acids,sweet amino acids,acidic amino acids,bitter amino acids,flavor amino acids,sulfur amino acids,branched-chain amino acids and aromatic amino acids in brown species is higher than normal species,but E/T、E/N is lower than normal species.The nutritional value of AAS,CS and SRCAA in brown species is higher than normal species.It indicated that significant differences were observed on nutrition traits between these two groups and the nutrition of amino acids in brown species was better than normal species.%为进一步丰富福建省毛木耳栽培品种,提高福建毛木耳生产品质,比较分析新引自台湾的褐色毛木耳与福建毛木耳主栽品种(漳耳43-28)的营养成分差异.结果表明:褐木耳的蛋白质、还原糖、维生素B1和维生素B2含量显著或极显著高于漳耳43-28,E/P值、Fe含量显著低于漳耳43-28 (P＜0.05).两种木耳的脂肪、灰分、膳食纤维、能量无显著性差异(P＞0.05);两种木耳均至少含18种氨基酸,褐木耳的单一氨基酸含量(除胱氨酸外)、必需氨基酸、非必需氨基酸、儿童必需氨基酸、氨基酸总量、甜味类氨基酸、酸味类氨基酸、苦味类氨基酸、呈味氨基酸、含硫氨基酸、支链氨基酸和芳香族氨基酸均显著高于漳耳43-28 (P＜0.05);褐木耳的AAS、CS和SRCAA营养价值评价均高于漳耳43-28.说明漳耳43-28和褐木耳的营养特征存在明显的差异,褐木耳营养价值优于漳耳43-28.