适度调节小麦B粉比率:改善分子结构,空间形状,复制发酵面团的聚合行为及其加工适用性
Wei Liang1, Huishan Shen2, Qian Lin1
1Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, PR China.
International journal of biological macromolecules
|June 22, 2024
概括
增加小麦B粉含量可以改善面团发酵和面包质量. 通过25:75A:B粉比率实现了最佳面包质量,增强了质网络的稳定性和空气持有能力.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 小麦粉包括A和B颗粒部分,大小和成分不同.
- 面团发酵涉及粉,质和酵母之间的复杂相互作用,影响最终产品的质量.
- 了解粉颗粒大小的影响对于优化面团加工和制品至关重要.
研究的目的:
- 调查不同小麦A/B粉比对面团发酵和面包质量的影响.
- 阐明粉颗粒大小,质网络发展和发酵期间蛋白质结构之间的关系.
- 确定影响面团属性的关键指标,以改善加工和产品质量.
主要方法:
- 小麦A和B粉分数被重组成五个比率 (100:0到0:100).
- 粉-质混合物经历了酵母诱导的发酵,持续时间为三次 (20,30,60分钟).
- 分析了面团的特性,质网络,蛋白质结构 (二次结构,二硫化物键) 和面包质量.
主要成果:
- 发酵增强了质网络的延伸和面团表面的粗度,同时改变了蛋白质的次要结构 (减少了α螺旋和β折叠的含量).
- 在B-粉比例中适度增加改善了质网络的稳定性,连续性和空气持有能力.
- 25A:75B的粉比率产生了最佳的蒸汽面包质量,其特点是较高的质宏分子聚合物 (GMP) 和聚合物蛋白质含量,较低的自由硫和单质蛋白质含量.
结论:
- 小麦粉颗粒大小分布显著影响面团发酵行为和最终产品质量.
- 优化B粉比提高了质网络的完整性和发酵气体的保留,从而带来了优越的面包特性.
- 研究结果支持针对含B粉量较高的小麦品种进行有针对性的育种,以提高发酵意大利面产品的质量.
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