来自罗马尼亚南部的突发性酵母用于预防食品微生物污染
Viorica Maria Corbu1,2, Andreea Ștefania Dumbravă3,4, Irina Gheorghe-Barbu2,4
1Department of Genetics, Faculty of Biology, University of Bucharest, Aleea Portocalelor 1-3, 060101 Bucharest, Romania.
Life (Basel, Switzerland)
|September 28, 2024
概括
九种突发性酵母菌株因其作为抗微生物和益生菌剂的潜力而具有特征. 这些酵母表现出显著的抗菌活性,耐压力和脂解能力,突出显示了它们在食品安全方面的工业应用潜力.
科学领域:
- 微生物学 微生物学
- 食品科学 食品科学 食品科学
- 生物技术是生物技术.
背景情况:
- 突发性酵母是开发针对食品微生物污染的新策略的宝贵资源.
- 鉴定酵母菌株的抗菌和益生菌性质对于食品安全和工业应用至关重要.
研究的目的:
- 描述来自Starmerella,Candida,Metschinikowia,Lachancea,Kodamaea和Pichia属的9种酵母菌株,以确定它们作为抗菌和益生菌剂的潜力.
- 评估它们的安全状态,在压力条件下的生长,以及对病原性微生物和丝状真菌的活性.
主要方法:
- 从植物表面分离和描述9种酵母菌株.
- 确定酵母安全状况,包括毒性和致病性因素.
- 在各种压力条件下 (温度,盐度,pH) 评估细胞生长.
- 对病原性酵母 (Candida spp. 菌种) 的抗微生物活性评估. ),细菌和植物病原菌.
- 脂溶性活性评估和益生菌潜力的鉴定.
主要成果:
- 没有一种菌株表现出完全的毒性或致病性特征.
- 几种菌株表现出对应激条件的耐受性,包括高温 (37°C),10%的NaCl和广泛的pH范围 (3.0-12.0).
- 对Candida krusei,Candida albicans,格拉姆阴性细菌和丝状真菌观察到显著的抗菌活性 (K. ohmeri CMGB-ST19和P. membranaefaciens CMGB-ST53的抑制率高达100%).
- 所有菌株都产生脂酶,其中S. bombi CMGB-ST1是最好的生产者.
- C. magnoliae CMGB-ST8.2 与其他益生菌酵母产生了积极的相互作用.
结论:
- 九种特征化的酵母菌株具有工业应用的巨大潜力,包括开发益生菌产品.
- 这些酵母可以用来防止各种微生物食品污染物的生长.
- 它们经过证明的耐压力和抗微生物特性使它们成为食品保存和功能性食品开发的有希望的候选人.
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