Evaluation of the protein nutritional value of Lentinus edodes which cultivated by substitute of mulberry sawdust
WANG Yawei1,2,3, HU Guiping1,2,3*, HUANG Jinzhi1,2,3, SHI Xuping1,2,3, ZHANG Cheng4, WANG Feng1,2,3, CAO Hongmei1,2,3, HU Lichun1,2,3
1(Jiangxi Sericulture and Tea Research Institute, Nanchang 330202, China) 2(Economic Crops Research Institute of Jiangxi Province, Nanchang 330202, China) 3(Jiangxi Research Center of Silk and Mulberry Engineering and Technology, Nanchang 330202, China) 4(Institute of Agricultural Applied Microbiology, Jiangxi Academy of Agricultural Sciences, Nanchang 330200, China)
Abstract: Lentinus edodes strain ‘Ming60’ was used as the experimental material to study the effects of different proportions of mulberry sawdust (CK:0, M1:5%, M2: 15%, M3: 25%, M4: 35%, M5: 50%, M6: 75%, M7: 100%) cultivation on crude protein, fat and amino acid content of L. edodes. The results showed that there was no significant difference in crude protein content in L. edodes cultivated with different proportions of mulberry sawdust, but the fat content changed significantly (P < 0.05). There were 17 kinds of amino acids in L. edodes cultivated with different proportions of mulberry sawdust substitutes, and the EAA and TAA of L. edodes presented a trend of increased first and then decreased gradually with the increase of mulberry sawdust substitution rate. Further study revealed that the content of TAA and EAA was the highest when the proportions of mulberry sawdust was at 50%, which was 12.52% and 15.52% higher than that of the control group, respectively. But there was no significant difference between the other treatments. AAS, EAAI, BV and NI evaluation showed that the nutritional value of L. edodes with 35% mulberry branch substitution was high, and the essential amino acid pattern was closer to the standard protein. The CS and the SRC showed that the amino acid balance of L. edodes cultivated with different proportions of mulberry sawdust was relatively poor, and the limiting amino acids were Met + Cys. In summary, when the proportion of mulberry sawdust was at 35%-50%, L. edodes had high quality protein and low fat, and had high amino acid nutritional value and delicious taste.
王亚威,胡桂萍,黄金枝,等. 桑枝屑代料栽培香菇蛋白质营养价值评价[J]. 食品与发酵工业, 2021, 47(20): 225-231.
WANG Yawei,HU Guiping,HUANG Jinzhi,et al. Evaluation of the protein nutritional value of Lentinus edodes which cultivated by substitute of mulberry sawdust[J]. Food and Fermentation Industries, 2021, 47(20): 225-231.
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2021, Vol. 47 
