Influence of food macrostructure on the kinetics of acidification in the pig stomach after the consumption of rice- and wheat-based foods: Implications for starch hydrolysis and starch emptying rate

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dc.citation.volume394
dc.contributor.authorNadia J
dc.contributor.authorOlenskyj AG
dc.contributor.authorSubramanian P
dc.contributor.authorHodgkinson S
dc.contributor.authorStroebinger N
dc.contributor.authorEstevez TG
dc.contributor.authorSingh RP
dc.contributor.authorSingh H
dc.contributor.authorBornhorst GM
dc.coverage.spatialEngland
dc.date.accessioned2024-06-12T20:07:42Z
dc.date.available2024-06-12T20:07:42Z
dc.date.issued2022-11-15
dc.description.abstractHow the stomach can serve as a biochemical environment for starch digestion and the implications on starch emptying are not well-understood. Biochemical changes during gastric digestion of cooked wheat- and rice-based diets of varying particle size and microstructure were investigated using a growing pig model. In larger-particle size diets (rice grain, rice noodle, pasta), pH >3 was maintained in the proximal stomach digesta even until 240 min digestion, resulting in extended remaining amylase activity and accumulation of maltose from starch hydrolysis in the stomach. In smaller-particle size diets (couscous, rice couscous, semolina porridge), gastric acidification occurred faster to produce homogeneous intragastric pH and deactivated amylase. The hypothesis of the study was that food macrostructure would impact gastric acidification kinetics, and the resulting biochemical environment for starch hydrolysis in the stomach may further affect the mechanisms of food breakdown in the stomach and gastric emptying of starch.
dc.description.confidentialfalse
dc.format.pagination133410-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/35752121
dc.identifier.citationNadia J, Olenskyj AG, Subramanian P, Hodgkinson S, Stroebinger N, Estevez TG, Singh RP, Singh H, Bornhorst GM. (2022). Influence of food macrostructure on the kinetics of acidification in the pig stomach after the consumption of rice- and wheat-based foods: Implications for starch hydrolysis and starch emptying rate.. Food Chem. 394. (pp. 133410-).
dc.identifier.doi10.1016/j.foodchem.2022.133410
dc.identifier.eissn1873-7072
dc.identifier.elements-typejournal-article
dc.identifier.issn0308-8146
dc.identifier.number133410
dc.identifier.piiS0308-8146(22)01372-3
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/69811
dc.languageeng
dc.publisherElsevier Ltd
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0308814622013723
dc.relation.isPartOfFood Chem
dc.rights(c) 2022 The Author/s
dc.rightsCC BY-NC-ND 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectAmylase activity
dc.subjectFood structure
dc.subjectGastric acidification
dc.subjectGastric digestion
dc.subjectStarch hydrolysis
dc.subjectAmylases
dc.subjectAnimals
dc.subjectDigestion
dc.subjectEdible Grain
dc.subjectHydrogen-Ion Concentration
dc.subjectHydrolysis
dc.subjectKinetics
dc.subjectOryza
dc.subjectStarch
dc.subjectStomach
dc.subjectSwine
dc.subjectTriticum
dc.titleInfluence of food macrostructure on the kinetics of acidification in the pig stomach after the consumption of rice- and wheat-based foods: Implications for starch hydrolysis and starch emptying rate
dc.typeJournal article
pubs.elements-id454076
pubs.organisational-groupOther
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