开发了优化的功能性针叶强化益生菌酸奶
Lejaniya Abdul Kalam Saleena1, Adelene Ai-Lian Song2, Yus Aniza Yusof3,4
1Department of Food Science and Nutrition, Faculty of Applied Sciences, UCSI University, Kuala Lumpur, Malaysia.
Journal of food science and technology
|June 24, 2024
概括
功能性酸奶含有水性爪提取物 (ACE) 和益生菌显示出显著的抗菌作用. 最佳条件提高了酸度,抗菌性质和质地,产生了79%的可取性得分.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 生物技术是生物技术.
背景情况:
- 功能性食品除了提供基本营养之外,还能为健康带来好处.
- 益生菌酸奶包含有益的活微生物.
- 丁香 (Syzygium aromaticum) 具有已知的抗微生物特性.
研究的目的:
- 为了优化功能性酸奶的配方,补充了水性爪提取物 (ACE) 和益生菌.
- 评估优化功能酸奶对特定细菌的抗菌作用.
- 为了确定ACE度,发酵温度和培养度对酸奶特性的影响.
主要方法:
- 使用Box-Behnken设计优化ACE度 (2.5-7.5%),发酵温度 (32-42°C) 和总培养度 (1.5-4.5%).
- 评估的反应包括pH值,可定位的酸度,协同反应,水容量,粘度,弹性,颜色,乳酸细菌活力和抗菌活性.
- 采用福里埃转换红外光谱 (FTIR) 分析优化功能酸奶的化学成分.
主要成果:
- 增加的ACE度显著提高了可定位酸度,对*K. pneumoniae*和*P. aeruginosa*的抗菌有效性,弹性和颜色特征.
- 更高的发酵温度降低了pH值和乳菌的活力.
- 提高培养度降低了 *Streptococcus thermophilus* 和 *Lactococcus lactis* 的活力和弹性.
- 在最佳条件下 (7.5%ACE,36.6°C,4.5%培养) 实现了79%的可取性得分.
- FTIR分析确定了与基,碳基和以太/酒精振动相关的关键功能组.
结论:
- 用ACE和益生菌补充的功能性酸奶显示出显著的抗菌潜力.
- 优化配方参数对于最大限度地提高所需的功能和感觉特性至关重要.
- 开发的功能性酸奶代表了一种有前途的方法来提高食品的保存和健康益处.
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