从葡萄酒废物中分离出的黑色素的抗菌活性
Ela Minasyan1,2, Armen Aghajanyan1, Kristina Karapetyan3
1Laboratory of BAS Purification and Certification, SPC "Armbiotechnology" Scientific and Production Center, National Academy of Science, Yerevan, Republic of Armenia.
Indian journal of microbiology
|December 16, 2024
概括
黑色素表现出抗菌性质,充当抗菌剂或杀菌剂对各种细菌和真菌. 这种天然化合物显示出作为防腐剂的潜力,可以防止食品污染并延长保质期.
科学领域:
- 生物化学和微生物学
- 自然产品 化学 化学
- 食品科学与技术 食品科学与技术
背景情况:
- 黑色素是生物聚合物,在农业,化品和药品中具有多样化的应用.
- 了解黑色素的抗菌潜力对于探索它们在各种行业中的使用至关重要.
- 条件致病性细菌和真菌在食品保存和医疗保健方面构成重大挑战.
研究的目的:
- 评估黑色素对一系列细菌和真菌的抗菌活性.
- 为了确定黑色素作为食品天然防腐剂的有效性.
主要方法:
- 测试不同度的黑色素溶液 (20-40毫克/毫升) 对不同的细菌和真菌物种.
- 用黑色素化微生物培养,并评估细胞数量随时间的减少 (长达72小时).
- 对黑色素对特定微生物菌株的细菌静止和杀菌作用的评估,包括* Bacillus subtilis * * Salmonella typhimurium * * Escherichia coli * * 和各种真菌.
主要成果:
- 黑色素表现出剂量依赖的细菌静止和杀菌活性对测试的微生物.
- 20-40毫克/毫升的度显著降低了微生物细胞数量,在40毫克/毫升的剂量下,几乎100%抑制了*B. subtilis*和*Candida gropengiesseri*.
- 黑色素显示对大肠杆菌,牛菌和各种菌,克拉多斯波里亚,菌,菌和青菌的有效性,表明具有广泛的抗菌作用.
结论:
- 黑色素具有显著的抗微生物特性,对广泛的细菌和真菌有效.
- 黑色素可以用作天然防腐剂,以抑制食物破坏微生物的生长.
- 这些发现支持黑色素用于防止食品污染和延长食品的保质期.
相关概念视频
01:28Antimicrobial Effectiveness
The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...
01:23Antimicrobial Proteins
893
Antimicrobial proteins are important components of the immune system. They aid the body in combating pathogens by either killing them directly or hindering their replication processes. Four main types of antimicrobial substances are interferons, the complement system, iron-binding proteins, and antimicrobial proteins.
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
Interferons
Interferons (IFNs) are proteins produced by lymphocytes, macrophages, and fibroblasts infected with viruses. While IFNs cannot prevent viruses from entering and...
893
01:18Surface Membrane Barriers
1.0K
The skin and mucous membranes serve as the primary line of defense against pathogens by providing both physical and chemical protection. These barriers are essential in preventing the entry and establishment of microbes, thereby maintaining the integrity of the host.
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
The outer layer of the skin, the epidermis, is a robust barrier comprising layers of closely packed keratinized cells. This dense arrangement prevents microbes from penetrating the body. The periodic shedding of epidermal cells...
1.0K