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Variation of resistant starch content in different processing types and their starch granules properties in rice.
- Source :
-
Carbohydrate Polymers . Jan2022, Vol. 276, pN.PAG-N.PAG. 1p. - Publication Year :
- 2022
-
Abstract
- Ninety-nine lines from recombinant inbred lines were selected to investigate the effects of starch synthesis-related genes on resistant starch (RS) content in different proceeding types. RS in raw milled rice (RSm), hot cooked rice (RSc), and retrogradation rice (RSr) showed a wide variation among the lines, especially RSm arrived at 10.61%. Divergent variability of RSm, RSc and RSr indicated that there were different regulation mechanisms for them. Waxy wildtype allele (Wx a ) could elevate RSm, RSc and RSr, but Soluble starch synthase IIa (SSIIa) only played a vital role in regulating RSm. Wx a - indica SSIIa could increase RSm, and Wx a - japonica SSIIa (SSIIaj) could elevate RSc and RSr. The mean diameter of Wx a - SSIIaj was significantly bigger than others. The bigger starch granules, the higher RSc and RSr. Starch granules morphology with high-RSm would have a higher percentage in polyhedral and angular shape. The results provide new information for rice breeding with high-RS content. [ABSTRACT FROM AUTHOR]
- Subjects :
- *RICE breeding
*STARCH
*RICE
Subjects
Details
- Language :
- English
- ISSN :
- 01448617
- Volume :
- 276
- Database :
- Academic Search Index
- Journal :
- Carbohydrate Polymers
- Publication Type :
- Academic Journal
- Accession number :
- 153707573
- Full Text :
- https://doi.org/10.1016/j.carbpol.2021.118742