Cited by 540Coffee research and impactsFood Chemistry and Fat AnalysisPotato Plant Research

Effect of Roasting on the Formation of Chlorogenic Acid Lactones in Coffee

Farah, Adriana, de Paulis, Tomas, Trugo, Luiz C., Martin, Peter R.·2005·Journal of Agricultural and Food Chemistry

Abstract

Of all plant constituents, coffee has one of the highest concentrations of chlorogenic acids. When roasting coffee, some of these are transformed into chlorogenic acid lactones (CGL). We have studied the formation of CGL during the roasting of coffee beans in Coffea arabica cv. Bourbon; C. arabicacv. Longberry; and C. canephora cv. Robusta. Individual CGL levels were determined by comparison of HPLC peaks with those of synthetic CGL standards. Seven CGL were identified: 3-caffeoylquinic-1,5-lactone (3-CQL), 4- caffeoylquinic-1,5-lactone (4-CQL), 3-coumaroylquinic-1,5-lactone (3-pCoQL), 4-coumaroylquinic-1,5-lactone (4-pCoQL), 3-feruloylquinic-1,5-lactone (3-FQL), 4-feruloylquinic-1,5-lactone (4-FQL), and 3,4-dicaffeoylquinic-1,5-lactone (3,4-diCQL). 3-CQL was the most abundant lactone in C. arabica and C. canephora, reaching peak values of 230 +/- 9 and 254 +/- 4 mg/100 g (dry weight), respectively, at light medium roast ( approximately 14% weight loss). 4-CQL was the second most abundant lactone (116 +/- 3 and 139 +/- 2 mg/100 g, respectively. The maximum amount of CGL represents approximately 30% of the available precursors. The relative levels of 3-CQL and 4-CQL in roasted coffee were reverse to those of their precursors in green coffee. This suggests that roasting causes isomerization of chlorogenic acids prior to the formation of lactones and that the levels of lactones in roasted coffee do not reflect the levels of precursors in green coffee.

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Crossref · 10.1021/jf048701t

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Authors
Farah, A., de Paulis, T., Trugo, L. C., & Martin, P. R.
Affiliations
  • Universidade Federal do Rio de Janeiro (BR)
  • Vanderbilt Institute for Coffee Studies, Vanderbilt University School of Medicine, Nashville, Tennessee 37232, and Instituto de Química, Universidade Federal do Rio de Janeiro, Ilha do Fundao, RJ 21944, Brazil
Corresponding author
Farah, Adriana
Venue
Journal of Agricultural and Food Chemistry
Published
2005-02-10
Volume
53
Issue
5
Pages
1505-1513
ISSN
  • 0021-8561 (ISSN-L)
  • 1520-5118
OpenAlex
W2065424390
Cited by
540
References
34
Citations by year
2026: 22 · 2025: 22 · 2024: 33 · 2023: 33 · 2022: 40 · 2021: 37 · 2020: 40 · 2019: 39 · 2018: 33 · 2017: 27 · 2016: 39 · 2015: 23 · 2014: 40 · 2013: 27 · 2012: 20
FWCI
5.32
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Agricultural and Food Chemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Pharmacology › Coffee research and impacts
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Food Chemistry and Fat Analysis
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Potato Plant Research
Keywords
coffee roasting, chlorogenic acid, Coffea arabica, Coffea canephora, isomerization, green coffee beans, roasted coffee, phenolic compounds
MeSH terms
Chlorogenic Acid, Food Handling, Hot Temperature, Lactones, Seeds, Coffea

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