YIN Shuli,LIANG Ran,LI Shusheng,et al.Effects of Pear Sawdust Cultivation Substrate on Amino Acid Composition and Nutritional Value in Pleurotus ostreatus Fruit Bodies[J].Northern Horticulture,2022,(11):112-119.[doi:10.11937/bfyy.20214576]
梨木屑基质对平菇子实体氨基酸组成及营养价值的影响
- Title:
- Effects of Pear Sawdust Cultivation Substrate on Amino Acid Composition and Nutritional Value in Pleurotus ostreatus Fruit Bodies
- 文献标志码:
- A
- 摘要:
- 以平菇“冀杂26”为试验材料，采用氨基酸定量分析测定方法，研究源于不同梨木屑配方子实体的氨基酸种类及组成，对子实体蛋白质营养价值进行评价比较,以期为高营养价值平菇的栽培提供参考依据。结果表明：4种配方栽培的平菇子实体中均含有17种氨基酸，配方1（梨木屑33%+玉米芯30%+棉籽皮30%+麸皮5%+石膏2%）栽培的平菇子实体中总氨基酸、药用氨基酸、鲜味氨基酸及苦味氨基酸的含量最高，化学评分CS最高。配方2（梨木屑63%+棉籽皮30%+麸皮5%+石膏2%）栽培平菇子实体的蛋白质氨基酸评分（AAS）最高，SRC值、必需氨基酸指数（EAAI）及生物价（BV）最大。配方3（梨木屑63%+玉米芯30%+麸皮5%+石膏2%）栽培的平菇子实体中必需氨基酸总含量最高，营养指数（NI）最大。配方4（梨木屑90%+麸皮8%+石膏2%）栽培的平菇子实体中甜味氨基酸含量最高。化学评分CS、营养指数NI与栽培配方原料中全氮、全磷含量负相关，与铁含量正相关；SRC反之。综上所述，梨木屑与不同原料复配对子实体氨基酸种类、含量及蛋白质营养价值的影响效果不同。
- Abstract:
- Pleurotus ostreatus ‘Jiza 26’ was used as the test material,the method of amino acid quantitative analysis was used,the amino acids types and compositions of fruit bodies from different pear sawdust formula were studied,the nutritional value of fruit bodies were evaluated and compared,in order to provide reference for the cultivation of Pleurotus ostreatus with high nutritional value,varieties of nutritional value evaluation methods were used to evaluate and compare the nutritional value of fruit bodies.The results showed that the fruit bodies of Pleurotus ostreatus all contained 17 kinds of amino acids.Fruit bodies of Pleurotus ostreatus cultivated by formula 1 (pear sawdust 33%+corn cob 30%+cottonseed skin 30%+bran 5%+gypsum 2%) had the highest content of total amino acid,medicinal amino acid,umami amino acid and bitter amino acid,and the chemical score CS was the highest.Fruit bodies of Pleurotus ostreatus cultivated by formula 2 (63% pear sawdust+30% cottonseed skin+bran 5%+gypsum 2%) had the highest protein amino acid score (AAS),SRC value,essential amino acid index (EAAI) and biological value (BV).Fruit bodies of Pleurotus ostreatus cultivated by Formula 3 (63% pear sawdust+30% corn cob+bran 5%+gypsum 2%) had the highest total essential amino acid content and nutritional index (NI).Fruit bodies of Pleurotus ostreatus cultivated by formula 4 (90% pear sawdust+bran 8%+gypsum 2%) had the highest sweet amino acid content.The chemical score CS and the nutritional index NI were negatively correlated with the total nitrogen and total phosphorus content of the cultivation medias,and positively correlated with the iron content;SRC was the opposite.Conclusions showed that the effects of the mixture of pear sawdust and different materials on amino acid variety,content and protein nutritive value of fruit body were different,which could provide reference for the cultivation of Pleurotus ostreatus with high nutritive value,promote the utilization of pear sawdust.
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备注/Memo
第一作者简介：尹淑丽（1979-），女，硕士，研究员，现主要从事食用菌栽培育种及废弃物资源化利用等研究工作。E-mail:yslbaihelr@126.com.基金项目：河北省科学院高层次人才培养与资助项目（2021G08）；河北省高层次人才资助项目（A202105011）；河北省重点研发计划资助项目（21373804D）。收稿日期：2021-11-11