开发功能性发酵料添加剂,增强了来自玉米的烯酸糖和酵母蛋白
Gayoung Lee1, In Jung Kim2, Soo Rin Kim1,3
1School of Food Science and Biotechnology, Kyungpook National University, Daegu 41566, Korea.
Journal of animal science and technology
|December 22, 2025
概括
这项研究开发了一种由玉米制成的功能性料添加剂,使用重组酵母菌株生产基酸糖 (XOS) 和酵母蛋白. 这种可持续的方法将农业废物转化为有价值的料成分,提高料效率.
科学领域:
- 生物技术是生物技术.
- 农业科学 农业科学
- 生物化学 生物化学
背景情况:
- 像玉米这样的农业副产品是丰富的资源.
- 从这些副产品中开发功能性料添加剂提供了一个可持续的战略.
- 氧化寡糖 (XOS) 和酵母蛋白是有价值的料成分.
研究的目的:
- 从玉米中生产富含XOS和酵母蛋白的功能性料添加剂.
- 为了利用复合的Saccharomyces boulardii菌株进行高效的西兰转换.
- 优化同时的糖化和发酵,以最大限度地提高XOS和酵母蛋白的产量.
主要方法:
- 一个复合的Saccharomyces boulardii菌株的构造,在它的细胞表面上显示内分泌酶.
- 对六种基蛋白进行评估,以有效地表达内分离酶,识别X-Tir1菌株.
- 使用预处理的玉米,X-Tir1菌株和商用细胞酶,优化同时进行糖化和发酵 (SSF).
主要成果:
- 在测试的菌株中,X-Tir1菌株表现出最高的内分泌糖酶活性.
- 在优化的SSF条件下 (2%NaOH预处理,72小时发酵) 产生了15.2g/L的XOS和12.8g的DCW/L酵母蛋白.
- 玉米基兰的成功生物转化为XOS和酵母蛋白的生产.
结论:
- 本研究提出了一种可持续且具有成本效益的方法,用于将农业废物再循环转化为功能性料添加剂.
- 开发的过程提高了基于纤维的饮食中的料效率.
- 细胞表面显示技术是生物转化过程的通用工具.
相关概念视频
Microbial Fermentation
1.3K
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...
1.3K
Yeast Signaling
17.0K
Yeasts are single-celled organisms, but unlike bacteria, they are eukaryotes (cells with a nucleus). Cell signaling in yeast is similar to signaling in other eukaryotic cells. A ligand, such as a protein or a small molecule released from a yeast cell, attaches to a receptor on the cell surface. The binding stimulates second-messenger kinases to activate or inactivate transcription factors that further regulate gene expression. Many of the yeast intracellular signaling cascades have similar...
17.0K
Microorganisms in Agriculture and Food industry
1.2K
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...
1.2K
Fermentation
128.5K
Most eukaryotic organisms require oxygen to survive and function adequately. Such organisms produce large amounts of energy during aerobic respiration by metabolizing glucose and oxygen into carbon dioxide and water. However, most eukaryotes can generate some energy in the absence of oxygen by anaerobic metabolism.
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
128.5K
Fungal Group Zygomycota
944
Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
944


