摘要
将液体培养的菌丝体与野生子实体烘干磨粉处理,对其营养成分测定分析,结果表明:菌丝体粗多糖含量(7.43 g/100 g)显著高于子实体粗多糖含量(2.31 g/100 g),二者均由果糖、木糖、鼠李糖、阿拉伯糖、葡萄糖、甘露糖和半乳糖7种组成;凯氏定氮法测得子实体粗蛋白含量为6.69 g/100 g,菌丝体粗蛋白含量为21.08 g/100 g;全自动氨基酸分析仪测得子实体含14种氨基酸,菌丝体含16种氨基酸;原子吸收分光光度计测得桦褐孔菌中含有大量K、Fe、Ca、Zn、Mg元素,少量Na、Mn、Se。研究结果表明桦褐孔菌的菌丝体营养成分比较丰富,可以代替子实体应用于食品及药品行业中,缓解子实体这种珍稀野生资源的不足。
Drying and milling were conducted on the liquid-cultured mycelia and fruiting body of Inonotus obliquus. Crude polysaccharides were significantly more abundant in mycelium than in fruiting body（7.43 g/100 g vs. 2.31 g/100 g）, both of which consisted of fructose, xylose, rhamnose, arabinose, glucose, mannose and galactose. Meanwhile, crude protein contents in mycelium and fruiting body were determined using the Kjeldahl method to be 6.69 g/100 g and 21.08 g/100 g, respectively. Amino acid profiles measured by amino acid analyzer suggested that the fruiting bodies contained 14 kinds of amino acids, and the mycelium contained 16 kinds of amino acids. Furthermore, as analyzed by atomic absorption spectrometry, both mycelium and fruiting body were rich in K, Fe, Ca, Zn and Mg along with small amounts of Na, Mn and Se. These results show that the mycelia of I. obliquus are rich in nutrients, and can be used as an alternative to the fruiting body as a rare wild mushroom in the food and medicinal industries.
出处
《食品科学》
EI
CAS
CSCD
北大核心
2015年第14期96-101,共6页
Food Science
基金
国家林业局公益性项目(201004079)
关键词
桦褐孔菌
营养成分
单糖组成
氨基酸
矿物元素
Inonotus obliquus
nutrient component
monosaccharide composition
amino acid
mineral elements
