改造的Chlorella vulgaris改善了生物乙醇生产,并有望在益生菌应用中发挥作用
Sumedha Saha1, Sachin Maji2, Sudip K Ghosh2
1Advanced Laboratory for Plant Genetic Engineering, Advanced Technology Development Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India.
World journal of microbiology & biotechnology
|July 19, 2024
概括
基因工程微藻 Chlorella vulgaris 显示生物乙醇生产的碳水化合物含量增加. 这些转基因藻类也表现出益生菌效应,使它们在功能性食品应用中具有价值.
科学领域:
- 生物技术是生物技术.
- 微生物学 微生物学
- 生物化学 生物化学
背景情况:
- 微藻生物质是生物燃料,功能性食品和动物料的有希望的资源,因为它的快速生长和种植容易.
- 基因工程为增强微藻中的特定有价值化合物的途径提供了途径.
研究的目的:
- 为改善生物燃料和食品应用开发具有增强粉含量的转基因Chlorella vulgaris.
- 研究基因改造对碳水化合物产量,生物燃料生产和功能性质的影响.
主要方法:
- 使用大肠杆菌glgC基因对Chlorella vulgaris进行基因工程,以调节ADP-葡萄糖核酸酶 (AGPase) 的上升.
- 转基因和对照菌株中总碳水化合物,粉,脂质,胡卜素和叶绿素的量化.
- 通过酵母发酵转基因藻类生物质来评估生物乙醇产量.
- 工程微藻的体外粉消化能力和益生菌作用的评估.
主要成果:
- 转基因C. vulgaris的总碳水化合物含量 (45.1%的DCW) 和粉含量 (16%的DCW) 与对照 (34.2%和10%的DCW) 相比增加.
- 转基因藻类生物质 (82.82 mg/L) 的生物乙醇产量明显高于对照 (54.41 mg/L).
- 转基因菌株的耐性粉含量高达7%,并对益生菌产生积极的益生菌效应.
结论:
- 通过上调调节AGPase对C. vulgaris的基因改造有效增加碳水化合物和粉的积累.
- 工程微藻生物质作为生物乙醇生产的优质原料.
- 转基因C. vulgaris具有作为具有前生物特性的功能性食品成分的潜力.
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