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Biosensor for Detection of Antibiotic Resistant Staphylococcus Bacteria
Published on: May 8, 2013
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关于Staphylococcus的安全评价及其在汁造中的应用
Xingrong Zhang1, Fei Wang2, Min Zhang1
1Shandong Food Ferment Industry Research & Design Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China.
概括
一种新的耐盐细菌,Staphylococcus PT-1,增强了大豆的发酵. 这种菌株提高了风味和营养含量,为高质量的大豆生产提供了一种新方法.
科学领域:
- 食品微生物学 食品微生物学
- 发酵技术的发酵技术
- 生物技术是生物技术.
背景情况:
- 豆发酵依赖于微生物联盟的风味和质量.
- 识别新型菌株可以提高发酵效率和产品特性.
- 从大豆粉粉中分离出来的葡萄球菌PT-1,具有作为发酵起始剂的潜力.
研究的目的:
- 鉴定葡萄球菌PT-1在豆生产中的潜力.
- 评估Staphylococcus PT-1对大豆的化学成分和挥发性概况的影响.
- 为了评估用Staphylococcus PT-1发酵的大豆的感官属性.
主要方法:
- 全基因组测序以评估遗传构成 (缺乏耐药性/病毒性基因).
- 盐耐受性测试 (高达20%的NaCl).
- 在猪肉和大豆发酵中进行注射,然后进行挥发性成分分析 (SPME-GC-MS) 和感官评估.
主要成果:
- 葡萄球菌PT-1表现出高盐分耐受性,并产生显著的pyrazine化合物 (例如2,5-dimethylpyrazine).
- 用PT-1发酵的豆显示了总和氨基酸的增加,氨盐和NaCl的减少.
- PT-1发酵大豆含有独特的挥发性化合物,并获得更高的味道丰富感官分数.
结论:
- 葡萄球菌PT-1是一种安全有效的豆发酵起始培养物.
- 使用PT-1可以显著提高大豆的风味特征和营养价值.
- 这项研究为利用新型微生物菌株改善发酵食品质量提供了基础.
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