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Improved rheological properties and shelf-life of wheat starch-lipid complex produced by the homogenization process.

ABSTRACT: Physical homogenization was applied to the production of a starch-lipid complex formed through a hydrophobic interaction between amylose and fatty acid molecules. In addition, vegetable oils as a source of fatty acids and wheat starch as a source of amylose molecules were used to produce the starch-lipid complex. The complex index was significantly (p < 0.05) increased through the homogenization, leading to the release of the amylose molecules from the starch granules and a high dispersibility of the fatty acids. In particular, the viscosity characteristics clearly demonstrated a dramatic improvement in the structural stability and retrogradation behavior as a result of the homogenization treatment. Vegetable oils with homogenization can be utilized to produce the starch-lipid complex as a food ingredient with an extended shelf-life and the improved rheological properties.

Supplementary information

The online version contains supplementary material available at 10.1007/s10068-021-00889-w.

SUBMITTER: Lee BH

PROVIDER: S-EPMC8050130 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature

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Improved rheological properties and shelf-life of wheat starch-lipid complex produced by the homogenization process.

Lee Byung-Hoo BH Choi Hyun-Wook HW

Food science and biotechnology 20210313 4

Physical homogenization was applied to the production of a starch-lipid complex formed through a hydrophobic interaction between amylose and fatty acid molecules. In addition, vegetable oils as a source of fatty acids and wheat starch as a source of amylose molecules were used to produce the starch-lipid complex. The complex index was significantly (<i>p</i> < 0.05) increased through the homogenization, leading to the release of the amylose molecules from the starch granules and a high dispersib ...[more]

PMID: 33936845

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Project description:Several health benefits are obtained from resistant starch, also known as healthy starch. Enhancing resistant starch with genetic modification has huge commercial importance. The variation of resistant starch content is narrow in wheat, in relation to which limited improvement has been attained. Hence, there is a need to produce a wheat population that has a wide range of variations in resistant starch content. In the present study, stable mutants were screened that showed significant variation in the resistant starch content. A megazyme kit was used for measuring the resistant starch content, digestible starch, and total starch. The analysis of variance showed a significant difference in the mutant population for resistant starch. Furthermore, four diverse mutant lines for resistant starch content were used to study the quantitative expression patterns of 21 starch metabolic pathway genes; and to evaluate the candidate genes for resistant starch biosynthesis. The expression pattern of 21 starch metabolic pathway genes in two diverse mutant lines showed a higher expression of key genes regulating resistant starch biosynthesis (GBSSI and their isoforms) in the high resistant starch mutant lines, in comparison to the parent variety (J411). The expression of SBEs genes was higher in the low resistant starch mutants. The other three candidate genes showed overexpression (BMY, Pho1, Pho2) and four had reduced (SSIII, SBEI, SBEIII, ISA3) expression in high resistant starch mutants. The overexpression of AMY and ISA1 in the high resistant starch mutant line JE0146 may be due to missense mutations in these genes. Similarly, there was a stop_gained mutation for PHO2; it also showed overexpression. In addition, the gene expression analysis of 21 starch metabolizing genes in four different mutants (low and high resistant starch mutants) shows that in addition to the important genes, several other genes (phosphorylase, isoamylases) may be involved and contribute to the biosynthesis of resistant starch. There is a need to do further study about these new genes, which are responsible for the fluctuation of resistant starch in the mutants.

Dataset Information

Improved rheological properties and shelf-life of wheat starch-lipid complex produced by the homogenization process.

Supplementary information

Publications

Improved rheological properties and shelf-life of wheat starch-lipid complex produced by the homogenization process.

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