Cited by 160Food composition and propertiesGastrointestinal motility and disordersProteins in Food Systems

Bolus formation and disintegration during digestion of food carbohydrates

Bornhorst, Gail M., Singh, R. Paul·2012·Comprehensive Reviews in Food Science and Food Safety

Abstract

Abstract: The first step in the digestion process is mastication, or chewing, when food is broken down, lubricated with saliva, and formed into a cohesive mass known as the food bolus. Upon swallowing, the bolus moves to the stomach and undergoes further breakdown during gastric digestion. The subject of this review is the formation of the food bolus and its subsequent breakdown in the stomach. Bolus formation has been widely studied, especially in terms of food particle size and lubrication. However, information about bolus disintegration is limited, and this review focuses on the breakdown of bread and starch‐based foods. Bolus formation and disintegration are key steps in the overall digestion process, as they control the rate at which ingested food components and nutrients are absorbed and released into the body. Information on the rate kinetics of bolus disintegration is necessary in developing a quantitative understanding of the food digestion process.

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Crossref · 10.1111/j.1541-4337.2011.00172.x

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  • A bolus with finer particles reduces the viscosity of gastric content, increases pyloric outflow, increases sedimentation of solids in liquids, and promotes the antrum to preferentially empty liquids faster than solids.

    “A bolus with finer particles reduces the viscosity of gastric content and increases pyloric outflow, thus increases sedimentation of solids in liquids, and promotes the ability of the antrum to preferentially empty liquids faster than solids [28].”
  • Digestion of carbohydrates begins in the oral cavity through the enzyme salivary α-amylase, which catalyzes the hydrolysis of starch by breaking down the α-1,4-glycosidic bonds to produce small saccharide units, such as maltose, maltotriose, and alpha-limit dextrins.

    “The digestion of carbohydrates begins in the oral cavity through the enzyme salivary α-amylase, which catalyzes the hydrolysis of starch by breaking down the α- 1,4-glycosidic bonds to produce small saccharide units, such as maltose, maltotriose, and alpha-limit dextrins [79].”
  • Digestion of starch is initiated in the oral cavity by salivary alpha-amylase, which catalyzes hydrolysis of starch by cleaving alpha-1,4-glycosidic linkages to yield smaller saccharide moieties such as maltose, maltotriose, and alpha-limit dextrins, which can be utilized by early biofilm colonizers and some periodontal pathogens.

    “Digestion of starch is initiated in the oral cavity through the action of salivary alpha‐amylase that catalyzes the hydrolysis of starch by cleaving α‐1,4‐glycosidic linkages to yield smaller saccharide moieties, such as maltose, maltotriose, and alpha‐limit dextrins,279, 280 which can be utilized by early biofilm colonizers as well as by some periodontal pathogens.”

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Authors
Bornhorst, G. M., & Singh, R. P.
Affiliations
Riddet Institute (NZ)
Corresponding author
  • Bornhorst, Gail M.
  • Singh, R. Paul
Venue
Comprehensive Reviews in Food Science and Food Safety
Publisher
Wiley
Published
2012-02-29
Volume
11
Issue
2
Pages
101-118
ISSN
1541-4337 (ISSN-L)
OpenAlex
W1990735205
Cited by
160
References
122
Citations by year
2026: 7 · 2025: 14 · 2024: 9 · 2023: 8 · 2022: 16 · 2021: 22 · 2020: 17 · 2019: 11 · 2018: 9 · 2017: 13 · 2016: 14 · 2015: 6 · 2014: 7 · 2013: 5 · 2012: 2
FWCI
5.94
Type
journal article
Language
en
Open access
closed
Locations
Comprehensive Reviews in Food Science and Food Safety (publishedVersion)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
  • Health Sciences › Medicine › Gastroenterology › Gastrointestinal motility and disorders
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
Keywords
food bolus, bolus formation, carbohydrate digestion, mastication, gastric digestion, food particle size, bread, starchy foods, digestion kinetics, nutrient absorption

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