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克西兰酶/β-葡萄糖酶协同作用:在高地大麦-小麦混合物中改善面团结构和面包质量
Menglu Zong1, Jiaqi Wang1, Tong Wu1
1College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.
酶通过增强质结构和水分分配,改善了高地大麦面包. 这导致了更好的质地,体积和感官吸引力,克服了非粉多糖的局限性.
科学领域:
- 食品科学与技术 食品科学与技术
- 谷物化学 谷物化学
- 酶技术 酶技术是一种
背景情况:
- 高地大麦 (HB) 提供营养益处,但由于非粉多糖 (NSP) 和弱质,其面包制作质量不佳.
- 像β-glucan和arabinoxylan这样的NSP干扰着面团结构和面包质地.
- 改善HB面包需要解决其固有的结构限制.
研究的目的:
- 为了提高面团的特性和面包质量,使用40%的全谷物高地大麦复合面粉.
- 调查西兰酶和β-葡萄糖酶对高地大麦面包的协同作用.
- 为了优化高地大麦丰富面包的结构和质感特征.
主要方法:
- 在复合面粉上使用xylanase和β-glucanase的双酶处理.
- 风湿学分析,以评估面团的粘性弹性.
- 低电场核磁共振 (NMR) 用于水分发.
- 质网络的微结构分析.
- 评估面包的特定体积,质地和感官属性.
主要成果:
- 双酶处理显著改善了面团的伸展性和降低了刚性,有利于基于质的结构而不是NSP主导的凝.
- 酶促进了水的再分配,增强了质水合,形成了一个更连续的质网络.
- 用酶处理的面包在特定体积上增加了35%,硬度降低了50%左右,弹性和凝聚性得到了改善.
- 感官评估表明,酶处理面包的质地,味道和整体可接受性都优越.
结论:
- 西兰酶和β-葡萄糖酶的协同作用有效地克服了高地大麦面包中NSP的负面影响.
- 酶处理优化结构和纹理特性,使高质量,感官吸引力的高地大麦丰富面包.
- 这种方法为利用营养丰富的高地大麦在面包应用中提供了可行的策略.
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