从不同的埃及奶酪中分离出来的精选乳酸菌菌株的益生菌和技术表征
Mohsen Zommara1, Shady El-Ghaish1, Thomas Haertle2
1Department of Dairy Science, Faculty of Agriculture, Kafrelsheikh University, Kafr El- Sheikh, 33516, Egypt.
BMC microbiology
|June 3, 2023
概括
研究人员从埃及奶酪中分离出Lactobacillus细菌,确定了具有显著益生菌潜力的菌株和对食品应用有价值的技术特性. 这些发现突出了在奶酪生产中作为起始和保护性培养物的有希望的候选者.
科学领域:
- 食品微生物学 食品微生物学
- 乳制品科学 乳制品科学
- 益生菌研究 益生菌研究
背景情况:
- 传统奶酪依赖于多种微生物,而非初始乳酸菌是技术和健康益处的关键.
- 埃及奶酪是食品应用中潜在有价值的微生物菌株的丰富来源.
- 了解乳酸菌的益生菌和技术特征对于乳制品行业的创新至关重要.
研究的目的:
- 从传统的埃及奶酪中分离出Lactobacillus种类.
- 评估这些分离物的益生菌潜力.
- 分析它们的技术特性,以便在制造奶酪方面有潜在的应用.
主要方法:
- 从各种埃及奶酪中分离和描述33种乳酸菌菌株.
- 评估酸化活性,自溶性质,外聚糖类生成和抗菌活性.
- 对低pH值,胆盐和模拟胃肠液的耐受性评估;自聚和抗生素敏感性测试.
主要成果:
- 在酸化活性 (18.18%快速,30.3%中等,51.5%缓慢) 和自溶 (24.3%好,33.3%相当,42.4%差) 中显著变化.
- 十五个分离物产生了外聚糖;九个对乳杆菌bulgaricus显示了抗菌活性.
- 乳酸盐菌种类型Lacticaseibacillus paracasei BD3,Lactiplantibacillus plantarum BR4和Limosilactobacillus fermentum MR2表现出益生菌特征,包括胆盐酸酶活性和对模拟肠道状况的耐药性.
结论:
- 乳酸菌类细菌 (Lacticaseibacillus paracasei BD3),乳酸菌类细菌 (Lactiplantibacillus plantarum BR4) 和乳酸菌类细菌 (Limosilactobacillus fermentum MR2) 具有宝贵的益生菌和技术特征.
- 这些已识别的菌株适合在奶酪制造中作为起始剂,附加剂或保护培养物的实际应用.
- 该研究成功地确定了埃及奶酪中的有希望的乳酸菌株,以促进乳制品的开发.
相关概念视频
01:27Bacterial Phylum Firmicutes
56
Firmicutes is a diverse phylum of Gram-positive bacteria characterized by a low GC content in their genomes. This phylum includes organisms with monoderm or diderm cell envelopes, highlighting a complex evolutionary history. Firmicutes comprises several major orders, including Lactobacillales, Clostridiales, and Bacillales, which exhibit remarkable diversity in their morphology, metabolism, and ecological roles.The order Lactobacillales includes lactic acid bacteria, which are fermentative...
56
01:30Bacterial Phylum Actinobacteria
40
Coryneform bacteria are gram-positive, aerobic, nonmotile rods that exhibit irregular, club-shaped, or V-shaped arrangements. Their V-shape results from snapping division, where the inner cell wall layer forms the cross-wall, while the outer layer remains intact until it ruptures on one side, causing the daughter cells to bend away.The primary genera are Corynebacterium and Arthrobacter. Corynebacterium includes diverse species, ranging from saprophytes to pathogens like Corynebacterium...
40
01:27Microorganisms in Agriculture and Food industry
103
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
103