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CaCl2对小麦粉面筋蛋白聚集特性及二级结构的影响

王小花, 梁赢, 贾峰, 王琦, 王金水

王小花, 梁赢, 贾峰, 王琦, 王金水. CaCl2对小麦粉面筋蛋白聚集特性及二级结构的影响[J]. 河南工业大学学报自然科学版, 2022, 43(5): 29-34,44. DOI: 10.16433/j.1673-2383.2022.05.005
引用本文: 王小花, 梁赢, 贾峰, 王琦, 王金水. CaCl2对小麦粉面筋蛋白聚集特性及二级结构的影响[J]. 河南工业大学学报自然科学版, 2022, 43(5): 29-34,44. DOI: 10.16433/j.1673-2383.2022.05.005
WANG Xiaohua, LIANG Ying, JIA Feng, WANG Qi, WANG Jinshui. Effects of CaCl2 on aggregation characteristics and secondary structure of wheat flour gluten[J]. Journal of Henan University of Technology(Natural Science Edition), 2022, 43(5): 29-34,44. DOI: 10.16433/j.1673-2383.2022.05.005
Citation: WANG Xiaohua, LIANG Ying, JIA Feng, WANG Qi, WANG Jinshui. Effects of CaCl2 on aggregation characteristics and secondary structure of wheat flour gluten[J]. Journal of Henan University of Technology(Natural Science Edition), 2022, 43(5): 29-34,44. DOI: 10.16433/j.1673-2383.2022.05.005

CaCl2对小麦粉面筋蛋白聚集特性及二级结构的影响

基金项目: 

河南省郑州市科技协同创新专项(21ZZXTCX03)

详细信息
    作者简介:

    王小花(1989—),女,河南禹州人,博士研究生,研究方向为粮食加工科学与技术。

    通讯作者:

    王金水,教授,博导,E-mail:jinshuiw@163.com。

  • 中图分类号: TS201.2

Effects of CaCl2 on aggregation characteristics and secondary structure of wheat flour gluten

  • 摘要: 为了从分子水平上探究CaCl2对小麦粉面筋蛋白聚集及结构特性的影响机制,以中筋小麦粉为原料,研究CaCl2不同添加量对小麦粉面筋蛋白聚集特性、二级结构及面团质构特性的影响。结果表明:随着CaCl2添加量的增加,小麦粉面筋蛋白的峰值最大时间显著缩短,峰值扭矩增加;面团的硬度、弹性和咀嚼性随CaCl2添加量的增加而显著降低,回复性随CaCl2添加量的增加变化不显著,黏附性随CaCl2 添加量的增加先显著增加再降低之后趋于平缓;面筋蛋白的二级结构中无规则卷曲和β-转角含量增加,β-折叠含量降低,α-螺旋含量无显著性变化。整体来看,添加CaCl2能加快面筋的形成,缩短面筋的聚集时间,弱化面团的质构特性,降低面筋结构的稳定性,从而导致面制品品质下降。
    Abstract: To explore the influence of CaCl2 on aggregation and structural characteristics of wheat flour gluten at the molecular level, wheat flour was used as the raw material. The effects of CaCl2 addition on the aggregation characteristics of wheat gluten, the textural characteristics of wheat dough, the extractability and secondary structure of dough gluten were studied. Firstly, the influence of different CaCl2 additions on gluten aggregation characteristics of wheat flour was analyzed by Gluten Peak Tester. The results showed that the maximum peak time of flour decreased significantly (from 75.67s to 30s), and the maximum torque increased significantly with the increase of CaCl2 additions (from 50 GPU to 74.67 GPU). Secondly, the texture analyzer was used to analyze the influence of different CaCl2 additions on the textural characteristics of wheat dough. The results showed that the hardness, springiness and chewiness of dough decreased significantly with the increase of CaCl2 additions. The resilience did not change significantly with the increase of CaCl2 additions, adhesion increased first and then decreased and then to be stable. Thirdly, the influence of different CaCl2 additions on gluten extractability of wheat dough was analyzed by fluorescence spectrophotometer. The results showed that the fluorescence intensity of gluten protein decreased as CaCl2 additions decreased (0.2% and 0.4%), indicating that wheat gluten extractability decreased significantly (P<0.05). With the further increase of CaCl2 additions (0.8%-3.2%), the fluorescence intensity of gluten protein did not change significantly, indicating that wheat gluten extractability did not change significantly. Finally, the influence of different CaCl2 additions on the secondary structure of dough gluten was determined by fourier transform infrared spectroscopy. The results showed that the peak positions and trends of FTIR spectra of gluten proteins with different CaCl2 additions were basically the same, indicating that the addition of CaCl2 could not change the specific groups of gluten, but changed the content of secondary structure of gluten. The addition of CaCl2 significantly decreased the content of β-sheet, increased the content of random coil and β-turn, but did not significantly change the content of α-helix. Overall, the addition of CaCl2 accelerated the formation of gluten, shortened the aggregation time of gluten, weakened the textural characteristics of dough, and reduced the stability of gluten structure, which reduced the quality of wheat product. Furthermore, these results also provided a theoretical guidance for the flour product processing industry.
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  • 期刊类型引用(4)

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    2. 赵龙源,张长付,周孟清,李京格,马金婷,王杭,范沛,李海峰,王金水,贾峰. 粗戊聚糖对特二粉面筋聚集特性及显微结构的影响. 食品研究与开发. 2023(18): 19-24 . 百度学术
    3. 马金婷,王杭,郑一雄,李宗璞,陈菲菲,吴枫毅,周孟清,王金水,贾峰. 氯化钠对小麦特二粉面筋聚集特性的影响. 河南工业大学学报(自然科学版). 2023(05): 77-83 . 百度学术
    4. 王如梦,张长付,赵龙源,李京格,王嘉璐,李海峰,王金水,贾峰. 木薯淀粉对特二粉面筋聚集特性及面团微观结构的影响. 食品科技. 2023(10): 124-128 . 百度学术

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  • 被引次数: 9
出版历程
  • 收稿日期:  2022-01-19
  • 网络出版日期:  2022-11-21

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