胶红酵母(Rhodotorula mucilaginosa)营养成分分析(英文)

Analysis on nutrition components in Rhodotorula mucilaginosa

为分析胶红酵母(Rhodotorula mucilaginosa)的营养水平,评价其作为饲料原料的营养价值和开发前景,对其常规营养成分、氨基酸、脂肪酸、β-胡萝卜素、维生素E、核苷酸和虾青素含量进行了测定。结果显示,胶红酵母的粗蛋白、粗脂肪、总糖、灰分的质量分数分别为49.2%、1.5%、22.3%和7.9%。共检出16种常见的氨基酸,包括7种人体必需氨基酸,占氨基酸总量的36.77%。检出6种脂肪酸,分别为十四酸、十六酸、十八酸、油酸、亚油酸和亚麻酸,含量分别为0.29%、8.64%、5.41%、35.38%、28.97%和21.31%。β-胡萝卜素、维生素E、核苷酸和虾青素的含量分别为1.40、172.00、170.00、1.00mg/kg。结果表明,胶红酵母的营养价值较高,是较好的饲料原料,可用作鱼粉等蛋白源的替代物,具有很好的市场前景和开发潜力。

To analyze the nutritional level of Rhodotorula mucilaginosa and evaluate its nutritional value and the development prospects as feed ingredients,the concentrations of nutritional components,amino acids,fatty acids,β-carotene,vitamin E,nucleotides and astaxanthin were determined in this study.The results showed that contents of crude protein,crude fat,total sugar and ash in R.mucilaginosa were 49.2％,1.5％,22.3％,and 7.9％,respectively.16 amino acids were detected,including 7 kinds of essential amino acids,which accounted for 36.77％ of the total amino acids.Moreover,6 kinds of fatty acid were detected.They were tetradecanoic acid,palmitic acid,stearic acid,oleinic acid,linoleic acid and linolenic acid,accounting for 0.29％,8.64％,5.41％,35.38％,28.97％ and 21.31％,respectively.The contents of β-carotene,vitamin E,nucleotides and astaxanthin were 1.40,172.00,170.00 and 1.00 mg/kg,respectively.The results indicated that R.mucilaginosa was a good feed ingredient with high nutritional value,and could be used as a substitute for protein sources like fishmeal.Therefore,R.mucilaginosa has good market prospects and development potential.