食品科学

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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

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,*   

  1. 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
  • 出版日期:2013-10-15 发布日期:2013-09-27
  • 通讯作者: 杨启银
  • 基金资助:

    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

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

ZHANG Xi-hai1,DING Jun1,JIN Xing1,GAO Yuan-yuan1,KANG Le1,GUAN Hai-hua1,YANG Qi-yin1,2,3,*   

  1. 1. College of Life Science, Nangjing Normal University, Nanjing 210046, China;
    2. Nanjing Engineering and Technology Research Center for Microbiology, Nanjing 210046, China;
    3. Jiangsu Engineering and Technology Research Center for Microbial Resources, Nanjing 210046, China
  • Online:2013-10-15 Published:2013-09-27
  • Contact: YANG Qi-yin

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%。

关键词: 沼泽红假单胞菌G3, 金针菇, 富硒, 营养成分

Abstract:

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%.

Key words: Rhodopseudomonas palustris G3, Flammulina velutipes, selenium enrichment, nutrients

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