探索与海藻相关的海洋微生物:对可持续资源利用的生长影响和酶潜力
Prakash Saravanan1, Antara Chatterjee1, K J Kiran1
1Agricultural and Food Engineering Department, Indian Institute of Technology Kharagpur, Kharagpur, West Bengal 721302 India.
Indian journal of microbiology
|July 16, 2024
概括
导致海藻冰冰病的海洋微生物还具有理想的酶,可以分解海藻生物质用于生产生物乙醇. 这项研究分离和描述了这些微生物,揭示了它们在可持续生物燃料应用中的潜力.
科学领域:
- 海洋微生物学 海洋微生物学
- 生物技术是生物技术.
- 可持续能源 可持续能源
背景情况:
- 由于由微生物感染引起的冰冰病,海藻种植面临经济损失.
- 了解海藻与微生物的相互作用对于疾病管理和资源利用至关重要.
研究的目的:
- 在红色海藻中隔离导致冰-冰病的海洋细菌和真菌.
- 为了评估孤立微生物的酶活性 (agarase和carrageenase).
- 评估它们从海藻生物质生产生物乙醇的潜力.
主要方法:
- 从三种红色海藻 (Gracilaria edulis,Kappaphycus alvarezii,Eucheuma cottonii) 中分离和培养微生物.
- 使用特定的测定方法选 agarase 和 carrageenase 活性.
- 用于微生物识别的DNA测序.
- 使用3,5-Dinitrosalicylic acid (DNSA) 试验量化酶活性.
主要成果:
- 在18个分离的微生物中,有12个显示出亚格和/或卡拉基南活性.
- 确定了10种细菌和2种酵母菌种.
- 卡尔迪巴西勒斯 (Caldibacillus kokeshiiformis) 菌株FJAT-47861显示了最高的卡拉基因酶活性 (0.76 U/ml).
- 皮奇亚发酵菌株PM79表现出最高的亚加酶活性 (0.52U/ml) 和整体平均活性 (0.63U/ml).
- 阳性微生物中的平均卡拉基因酶活性是亚加酶活性的1.5倍.
结论:
- 孤立的微生物具有显著的 агар酶和原酶活动,表明海藻细胞壁降解的潜力.
- 这些酶是分解海藻生物质以生产生物乙醇的关键.
- 该研究强调了利用微生物生物转化从海洋资源中生产可持续生物燃料的前景.
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