Large flour aggregates containing ordered B + V starch crystals significantly improved the digestion resistance of starch in pretreated multigrain flour.

Autor: Ma Q; College of Food Engineering and Nutritional Science, Shaanxi Normal University, No. 620 West Chang'an Avenue, Chang'an District, Xi'an 710119, China., Wang X; College of Food Engineering and Nutritional Science, Shaanxi Normal University, No. 620 West Chang'an Avenue, Chang'an District, Xi'an 710119, China. Electronic address: wangxiaolong23@126.com., Appels R; Faculty of Veterinary and Agricultural Sciences, University of Melbourne, Parkville, VIC 3010, Australia., Zhang D; College of Food Engineering and Nutritional Science, Shaanxi Normal University, No. 620 West Chang'an Avenue, Chang'an District, Xi'an 710119, China., Zhang X; College of Food Engineering and Nutritional Science, Shaanxi Normal University, No. 620 West Chang'an Avenue, Chang'an District, Xi'an 710119, China., Zou L; School of Food and Biological Engineering, Chengdu University, Chengdu 610106, Sichuan, China., Hu X; College of Food Engineering and Nutritional Science, Shaanxi Normal University, No. 620 West Chang'an Avenue, Chang'an District, Xi'an 710119, China.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Apr; Vol. 264 (Pt 2), pp. 130719. Date of Electronic Publication: 2024 Mar 08.
DOI: 10.1016/j.ijbiomac.2024.130719
Abstrakt: The starch digestibility of flour is influenced by both physicochemical treatment and flour particle size, but the interactive effect of these two factors is still unclear. In this study, the effect of pullulanase debranching, combined with heat-moisture treatment (P-HMT), on starch digestibility of multi-grain flours (including oat, buckwheat and wheat) differing in particle size was investigated. The results showed that the larger-size flour always resulted in a higher resistant starch (RS) content either in natural or treated multi-grain flour (NMF or PHF). P-HMT doubled the RS content in NMFs and the large-size PHF yielded the highest RS content (78.43 %). In NMFs, the cell wall integrity and flour particle size were positively related to starch anti-digestibility. P-HMT caused the destruction of cell walls and starch granules, as well as the formation of rigid flour aggregates with B + V starch crystallite. The largest flour aggregates with the most ordered B + V starch were found in large-size PHF, which contributed to its highest RS yield, while the medium- and small-size PHFs with smaller aggregates were sensitive to P-HMT, resulting in the lower ordered starch but stronger interactions between starch and free lipid or monomeric proteins, eventually leading to their lower RS but higher SDS yield.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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