Journal
FOOD RESEARCH INTERNATIONAL
Volume 160, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.foodres.2022.111748
Keywords
Wheat quality; B-type starch granules; Micro-structure of gluten; Gluten-starch interaction; Dough rheological properties
Categories
Funding
- Agriculture Research System of China [CARS-03-06]
- Taishan Industrial Experts Programme [LJNY202006]
- Agricultural Scientific and Technological Innovation Project of Shan-dong Academy of Agricultural Sciences [CXGC2022E01]
- National Natural Science Foundation of China [31901543]
- Programme of Introducing Talents of Innovative Discipline to Univer-sities [B21HJ0502]
- Programme of Introducing Talents of Innovative Discipline to Universities (Project 111) from the State Administration of Foreign Experts Affairs 'Crop breeding for disease resistance and genetic improvement' [B18042]
- Hainan Yazhou Bay Seed Lab [B21HJ0502]
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The study found that adding an appropriate amount of B-type starch granules can improve the rheological properties of dough, while adding A-type starch granules or excessive B-type starch granules may reduce the strength of the dough.
The quality traits of wheat grain ultimately determine the performance of wheat flour and dough, which is crucial to end-products. However, to combine high yield and good grain quality has been a great challenge in wheat breeding. In this study, the different sized A-and B-type starch granules were fractioned to investigate their effects on the physicochemical properties of wheat flour and rheological properties of wheat dough using three substitution levels (5, 10, and 15%). Results showed that 5% B-type starch granules addition increased the percentage of SDS-unextractable polymeric protein, optimized the dough network, and increased the bond water content, and thus improved the dough rheological properties. The addition of A-type starch granules or excessive B-type starch granules diluted and destroyed the structure of gluten, and reduced the dough strength. Therefore, a possible strategy for combining wheat quality and yield was proposed, that is, replacing protein content with B -type starch granules at a proper level, which has profound implications for wheat breeders to look at and address trade-offs between the quality and yield of wheat in future.
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