用各种天然基质作为发酵媒介中的替代碳来源用于国内Aureobasidium pullulans生产的价值化 AZ-6
Gamze Nur Mujdeci1, Melek Tijen Bozdemir2, Zekiye Yesim Ozbas3
1Faculty of Engineering, Department of Food Engineering, Hitit University, 19030 Çorum, Turkey.
ACS omega
|February 16, 2026
概括
农业工业废物,如糖蜜和甜,对Aureobasidium pullulans的成本效益高的pullulan生产有希望. 这项研究探讨了利用食物浪费的可持续生物过程,为循环生物经济做出贡献.
科学领域:
- 生物技术和工业微生物学
- 可持续的生物处理
- 生物聚合物生产 生物聚合物生产
背景情况:
- 普鲁兰是一种多功能生物聚合物,具有众多的工业应用.
- 传统的普鲁兰生产依赖于昂贵的碳来源.
- 农业工业废物的利用为生物聚合物合成提供了一个可持续的替代方案.
研究的目的:
- 评估各种农业工业和食品废弃物作为普鲁兰生产的基材.
- 为了优化Pullulan产量的发酵条件,使用Aureobasidium pullulans AZ-6.
- 评估废弃物衍生的普卢兰生物合成的经济和环境效益.
主要方法:
- 九种预处理的农业工业和食品废物被用作发酵介质中的碳来源.
- 在优化条件下进行了Aureobasidium pullulans AZ-6的批量发酵 (pH 6.48,24.2 °C,100rpm).
- 生物质,细胞外多糖 (EPS),pullulan产量和糖消费动力学都受到监测.
主要成果:
- 糖蜜产生了最高的pullulan标位 (14.55 g/L) 和特定生长率 (0.104 h-1).
- 奶酪乳清支持了最高的生物质 (13.03 g/L),但具有较低的pullulan生产率 (4.98 g/L).
- 甜,洋废弃物和胡卜皮显示出显著的普鲁兰产量 (8.24-8.70 g/L).
结论:
- 农业工业废物是可行的,可持续的pullulan生产具有成本效益的基材.
- 糖蜜是一种高效的基质,可以最大限度地提高pullulan产量和生长速度.
- 这项研究引入了用于pullulan生物合成的新型废物流,推进了循环生物经济.
相关概念视频
Microbial Fermentation
1.6K
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1.6K
Bioremediation
22.5K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
22.5K
Fates of Pyruvate
11.2K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
11.2K


