富硒沼泽红假单胞菌G3菌对金针菇营养组分和生物量的影响  

Effect of Selenium-enriched Rhodopseudomonas palustris G3 on Nutritional Components and Biomass in Flammulina velutipes

作　　者：章西海[1] 丁军[1] 金星[1] 高园园[1] 康乐[1] 管海华[1] 杨启银[1,2,3] 

机构地区：[1]南京师范大学生命科学学院,江苏南京210046 [2]南京市微生物工程技术研究中心,江苏南京210046 [3]江苏省微生物资源工程化技术研究中心,江苏南京210046

出　　处：《食品科学》2013年第19期153-157,共5页Food Science

基　　金：国家自然科学基金项目(30970523;30770073);江苏高校优势学科建设工程项目

摘　　要：本研究先是进行沼泽红假单胞G3菌的亚硒酸钠富集耐受驯化，然后通过将富硒G3菌培养液加入到金针菇栽培料中进行二次富硒，研究富硒G3菌培养液对金针菇生长的影响，金针菇子实体有机硒的转化率，富硒G3菌培养液对金针菇子实体营养组分的影响。结果表明：富硒G3菌的培养液不仅能够促进金针菇的生长，还能使不同处理组的生长周期缩短1～7d，生物量（以鲜质量计）分别提高1.86%～23.28%，干物质质量分别提高2.91%～28.78%，有机硒转化率达98.57%。富硒金针菇子实体的氨基酸总含量较对照组提高73.4%、粗蛋白含量提高14.74%、粗脂肪含量提高53.98%、粗多糖含量提高18.84%。In this study, Rhodopseudomonas palustris G3 was domesticated by enrichment of sodium selenite. The selenium-enriched culture of Rhodopseudomonas palustris G3 was introduced into the growth medium for a second selenium enrichment. Meanwhile, we explored the effect of this selenium-enriched culture on the growth of Flammulina velutipes as well as the conversion percentage of organic selenium and nutritional components in Rhodopseudomonas palustris G3. The results showed that the selenium-enriched culture of Rhodopseudomonas palustris G3 could not only promote the growth of Flammulina velutipes, but also shorten the growth cycle by approximately 1 to 7 days. Biomass was increased by 1.86% to 23.28%, dry matter was increased by 2.91% to 28.78%, and the conversion percentage of organic selenium reached up to 98.57%. Amino acids in the selenium-enriched Flammulina velutipes were increased by 73.4%, crude protein by 14.74%, crude fat by 53.98%, and crude polysaccharides by 18.84%.

关 键 词：沼泽红假单胞菌G3 金针菇 富硒 营养成分 

分 类 号：TS201.4[轻工技术与工程—食品科学]