Cited by 157Advanced Glycation End Products researchNatural Antidiabetic Agents StudiesPhytochemicals and Antioxidant Activities

Inhibition of Protein Glycation by Extracts of Culinary Herbs and Spices

Dearlove, Rebecca P., Greenspan, Phillip, Hartle, Diane K., Swanson, Ruthann B., Hargrove, James L.·2008·Journal of Medicinal Food

Abstract

We tested whether polyphenolic substances in extracts of commercial culinary herbs and spices would inhibit fructose-mediated protein glycation. Extracts of 24 herbs and spices from a local supermarket were tested for the ability to inhibit glycation of albumin. Dry samples were ground and extracted with 10 volumes of 50% ethanol, and total phenolic content and ferric reducing antioxidant potential (FRAP) were measured. Aliquots were incubated in triplicate at pH 7.4 with 0.25 M fructose and 10 mg/mL fatty acid-free bovine albumin. Fluorescence at 370 nm/440 nm was used as an index of albumin glycation. In general, spice extracts inhibited glycation more than herb extracts, but inhibition was correlated with total phenolic content (R(2) = 0.89). The most potent inhibitors included extracts of cloves, ground Jamaican allspice, and cinnamon. Potent herbs tested included sage, marjoram, tarragon, and rosemary. Total phenolics were highly correlated with FRAP values (R(2) = 0.93). The concentration of phenolics that inhibited glycation by 50% was typically 4-12 microg/mL. Relative to total phenolic concentration, extracts of powdered ginger and bay leaf were less effective than expected, and black pepper was more effective. Prevention of protein glycation is an example of the antidiabetic potential for bioactive compounds in culinary herbs and spices.

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Crossref · 10.1089/jmf.2007.536

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Authors
Dearlove, R. P., Greenspan, P., Hartle, D. K., Swanson, R. B., & Hargrove, J. L.
Affiliations
University of Georgia (US)
Venue
Journal of Medicinal Food
Published
2008-06
Volume
11
Issue
2
Pages
275-281
ISSN
  • 1096-620X (ISSN-L)
  • 1557-7600
OpenAlex
W2077084571
Cited by
157
References
58
Citations by year
2026: 2 · 2025: 2 · 2024: 8 · 2023: 5 · 2022: 11 · 2021: 10 · 2020: 6 · 2019: 13 · 2018: 10 · 2017: 13 · 2016: 12 · 2015: 12 · 2014: 12 · 2013: 10 · 2012: 16
FWCI
3.10
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Medicinal Food (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Advanced Glycation End Products research
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Natural Antidiabetic Agents Studies
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
Keywords
protein glycation, polyphenols, bovine serum albumin, total phenolic content, antioxidant activity, cinnamon, black pepper, Syzygium aromaticum, Rosmarinus officinalis, ginger, bay leaf, spice extracts
MeSH terms
Antioxidants, Cinnamomum zeylanicum, Ferric Compounds, Flavonoids, Fructose, Glycosylation, Oxidation-Reduction, Phenols, Plant Extracts, Serum Albumin, Bovine, Spices, Pimenta, Syzygium, Polyphenols

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