带有高度丰富的B1链的脱枝大米粉增强了芳香分子的封装
Yushen Liang1, Xiaoxue Lu1, Qian Xu1
1State Key Laboratory of Food Science and Resources, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China; School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, China.
International journal of biological macromolecules
|January 18, 2025
概括
带有特定链条长度的脱枝米粉 (DBS) 有效地封装了芳香分子. 与其他DBS类型相比,DBS1:1.5对C8芳香化合物的封装效率和稳定性更高.
科学领域:
- 食品科学 食品科学 食品科学
- 聚合物化学 聚合物化学
- 材料科学 是一种材料科学.
背景情况:
- 粉修饰对于提高食品质量至关重要.
- 控制粉链长度会影响其功能性质.
- 气味分子的封装对于食品系统中的风味稳定性至关重要.
研究的目的:
- 为了研究C8芳香分子的不同链长的脱枝米粉 (DBS) 的封装效率.
- 描述DBS-芳香复合物的结构和热性质.
- 阐明芳香分子结构,疏水性和粉相互作用之间的关系.
主要方法:
- 在不同的水解溶液与乙醇比率 (1:3, 1:1.5, 1:0) 下,分离脱枝米粉 (DBS).
- 选择C8芳香分子:1-octanol,1-octen-3-ol和γ-octalactone. 这三种化合物中的一种.
- 使用分析技术确定包含率和描述复杂性质 (结晶性,秩序,热稳定性).
主要成果:
- 与DBS1:0 (8.72%-12.16%) 和DBS1:3 (24.26%-48.24%) 相比,DBS1:1.5,具有很高比例的B1链 (DP 13-24),显示了气味分子的显著更高的包含率 (42.30%-68.09%) 和DBS1:0 (8.72%-12.16%) 和DBS1:3 (24.26%-48.24%).
- DBS1:1.5-芳香复合体表现出增强的结晶性,短距离秩序和热稳定性.
- 芳香分子结构和疏水性影响了封装;由于其疏水性和线性结构,1-octanol 显示出更高的相互作用,而 γ-octalactone 的相互作用因其疏水性和乳环大小而减弱.
结论:
- 带有优化链长分布 (DBS1:1.5) 的脱枝大米粉对于封装C8芳香分子非常有效.
- 芳香化合物的结构和疏水特性在它们与粉的相互作用和封装中起着至关重要的作用.
- 这些发现为改善粉食品加工中的香味保留和质量提供了宝贵的见解.
相关概念视频
Bioavailability Enhancement: Drug Stability Enhancement and GI Retention
Improving a drug's stability in the gastrointestinal (GI) tract is paramount for enhancing its bioavailability and therapeutic effectiveness. Various strategies are employed to protect the drug from the harsh gastric milieu and to ensure its release and absorption at the desired site within the GI tract.Polymer coatings are one such method used to shield drugs from the stomach's acidic environment. By preventing premature drug release, these coatings improve the bioavailability of unstable...
Production of Organic Acids
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Production of Pharmaceuticals
Industrial insulin production uses genetically engineered E. coli expressing a proinsulin gene controlled by a tryptophan promoter and containing a methionine linker for later cleavage. The cells also carry ampicillin resistance for selective growth. Seed cultures are stored at −80 °C and production begins by thawing a small amount to inoculate starter cultures, which are progressively scaled to a 50,000-L bioreactor. In the bioreactor, E. coli grow in nutrient-rich media under sterile, tightly...


