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在接种发酵过程中,米面中的粉结构,功能和质量的时间依赖的动态
Yuanyuan Ren1, Yingjie Lei2, Rui He3
1College of Food Science, Southwest University, Chongqing, 400715, China; Sichuan Oriental Staple Food Industry Technology Research Institute, Chengdu, 610000, China.
无菌发酵通过优化粉结构来提高米面 (RN) 的质量. 这一由α-amylase驱动的过程改善了面条的质地,并减少了损失.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 材料科学 是一种材料科学.
背景情况:
- 已知注射发酵可以提高面 (RN) 质量.
- 粉重组的具体机制及其对RN属性的影响尚未完全理解.
研究的目的:
- 为了研究发酵过程中粉结构的时间解析变化.
- 为了将这些结构变化与功能性质和RN/纹理性能相关联.
- 阐明阿尔法-氨酶在粉重塑中的作用.
主要方法:
- 在发酵过程中随着时间的推移监测粉结构 (B1链含量,短距离顺序,结晶度,双螺旋含量,碎形维度).
- 粘合性质的分析 (粘度,凝化度,逆转).
- 对RN损失,硬度和弹性进行评估.
- 统计相关性分析 (斯皮尔曼).
主要成果:
- 6小时的发酵导致了最佳的RN质量,其特点是最小的损失和最大的硬度和弹性.
- 在最佳发酵时,粉结构显示了B1链含量增加,短距离顺序,相对结晶性,双螺旋含量和质量碎形维度.
- 粘贴特性表明最小化的峰值/谷部粘度和分解,最大化的凝化度和逆转.
- 确定了α-氨酶活性是丰富B1链和增强粉秩序的关键因素.
结论:
- 优化发酵,特别是在6小时后,通过通过α-amylase调解的粉重组,显著改善了RN质量.
- 增强的粉顺序,特别是B1链,与改进的粘贴行为和优越的RN纹理直接相关.
- 了解发酵过程中的粉动态,可以为生产高质量的米面提供精确的控制策略.
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