外聚糖的结构特征和抗氧化活性 由甜菜废弃物残留物由Leuconostoc pseudomesenteroides生产
Ying Liu1, Ying Zhou1, Cong Bian1
1Department of Biochemistry and Molecular Biology, Qiqihar Medical University, Qiqihar 161000, China.
Antioxidants (Basel, Switzerland)
|November 27, 2024
概括
研究人员使用甜菜废物从乳酸细菌中生产出外聚糖 (EPS),降低了成本. 这种新型EPS表现出抗氧化特性,并有效吸附重金属,这表明功能性食品和制药的潜力.
科学领域:
- 生物技术是生物技术.
- 食品科学 食品科学 食品科学
- 材料科学 材料科学 材料科学
背景情况:
- 乳酸细菌外聚糖 (EPS) 具有多种应用,但受到高生产成本和低产量的限制.
- 农业废物利用对于可持续的工业实践至关重要.
研究的目的:
- 开发一种成本效益高的方法,利用甜菜废弃物残留物生产乳酸细菌EPS.
- 描述产生的EPS的物理化学和功能性质.
主要方法:
- 甜菜废弃物残留物的发酵,使用Leuconostoc伪体菌.
- 使用HPSEC,HPLC,FTIR和NMR光谱学净化和表征EPS.
- 评估热稳定性,重金属吸附性,自由基清除活性和细胞抗氧化作用.
主要成果:
- 成功生产了具有417kDa分子量的EPS.
- 该EPS是由葡萄糖子单元组成,通过α-1,6糖化链接连接在一起.
- 该EPS表现出高热稳定性 (315.54°C),有效的Cu2+吸附,显著的自由基中和和对细胞氧化应激的保护作用.
结论:
- 甜菜废弃物残留物是具有成本效益的EPS生产的可行基质.
- 标志性的EPS具有宝贵的抗氧化剂和重金属吸附性能.
- 这种EPS有望在功能性食品和药品中作为抗氧化剂的应用.
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