Cited by 154Food composition and propertiesProteins in Food SystemsPolysaccharides Composition and Applications

Structural and enzyme kinetic studies of retrograded starch: Inhibition of α-amylase and consequences for intestinal digestion of starch

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Patel, Hamung, Royall, Paul G., Gaisford, Simon, Williams, Gareth R., Edwards, Cathrina H., Warren, Frederick J., Flanagan, Bernadine M., Ellis, Peter R. +1 more·2017·Carbohydrate Polymers

Abstract

Retrograded starch is known to be resistant to digestion. We used enzyme kinetic experiments to examine how retrogradation of starch affects amylolysis catalysed by porcine pancreatic amylase. Parallel studies employing differential scanning calorimetry, infra red spectroscopy, X-ray diffraction and NMR spectroscopy were performed to monitor changes in supramolecular structure of gelatinised starch as it becomes retrograded. The total digestible starch and the catalytic efficiency of amylase were both decreased with increasing evidence of retrogradation. A purified sample of retrograded high amylose starch inhibited amylase directly. These new findings demonstrate that amylase binds to retrograded starch. Therefore consumption of retrograded starch may not only be beneficial to health through depletion of total digestible starch, and therefore the metabolisable energy, but may also slow the rate of intestinal digestion through direct inhibition of α-amylase. Such physiological effects have important implications for the prevention and management of type 2 diabetes and cardiovascular disease.

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  1. Byers D.A. Fernley H.N. Walker P.G. Inhibition of human-placental phosphoryl phosphatase by l-phenylalanine European Journal of Biochemistry 29 1972 197 204 5081613
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Authors
Patel, H., Royall, P. G., Gaisford, S., Williams, G. R., Edwards, C. H., Warren, F. J., Flanagan, B. M., Ellis, P. R., & Butterworth, P. J.
Affiliations
  • King's College London (GB)
  • UCL School of Pharmacy (GB)
  • The University of Queensland (AU)
Corresponding author
Butterworth, Peter J.
Venue
Carbohydrate Polymers
Publisher
Elsevier BV
Published
2017-05
Volume
164
Pages
154-161
ISSN
0144-8617 (ISSN-L)
OpenAlex
W2573838612
Cited by
154
References
59
Citations by year
2026: 14 · 2025: 18 · 2024: 18 · 2023: 16 · 2022: 19 · 2021: 26 · 2020: 19 · 2019: 12 · 2018: 6 · 2017: 6
FWCI
9.78
Type
journal article
Language
en
Open access
Locations
  • Carbohydrate Polymers (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research Portal (King's College London) (submittedVersion, cc-by)
  • UCL Discovery (University College London) (submittedVersion)
Funders
BBSRC (BB/H004866/1)
Topics
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Proteins in Food Systems
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Polysaccharides Composition and Applications
Keywords
retrograded starch, starch retrogradation, α-amylase inhibition, starch digestibility, high-amylose starch, type 2 diabetes prevention, cardiovascular disease prevention
MeSH terms
alpha-Amylases, Amylose, Animals, Digestion, Kinetics, Starch, Swine

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