质构仪测定小麦面筋的硬度与弹性

Determination of Wheat Gluten Hardness and Springiness with Texture Analyzer

摘要:

选取我国9个省份的30个小麦品种作为样品，利用质构仪测定小麦粉湿面筋质的硬度和弹性。结果显示：采用质构仪测得的面筋硬度与饺子皮质构指标TPA模式下的硬度（Hardness）、咀嚼性（Chewiness）在0.05水平上显著相关，与面筋指数、面团稳定时间、比延伸性、溶胀体积、透光率、硬度（Firmness）、强韧性(Toughness)均在0.01的水平上显著相关；面筋弹性仅与面筋指数和面筋比延伸性在0.01水平上显著相关，与溶胀体积、强韧性(Toughness)在0.05的水平上显著相关，上述结果表明采用质构仪测定面筋硬度作为小麦面筋强度的评价指标和饺子皮质构品质的预测指标具有一定的可行性。

Abstract:

This paper sampled 30 wheat varieties from 9 provinces, and the hardness and springiness of wet wheat gluten were investigated with texture analyzer. The results showed that there was a highly significant positive correlation between gluten hardness and chewiness, with hardness of TPA on 0.05 level. Also, gluten hardness showed highly significant correlations with gluten index, rough stable time, relative extensibility, swelling test value and ratio of penetrable light on 0.01 levels. High significant positive correlation between gluten springiness and gluten index, relative extensibility were also found on 0.01 levels. In addition, gluten springiness also showed clear correlations with swelling test value and toughness on 0.05 level. Therefore, the gluten hardness can be used to determine the strength of gluten and predicting the texture quality of dumpling wrapper.