Cited by 113Coffee research and impactsPhytochemicals and Antioxidant ActivitiesFree Radicals and Antioxidants

In Vitro and ex Vivo Antihydroxyl Radical Activity of Green and Roasted Coffee

Daglia, Maria, Racchi, Marco, Papetti, Adele, Lanni, Cristina, Govoni, Stefano, Gazzani, Gabriella·2004·Journal of Agricultural and Food Chemistry

Abstract

The specific antiradical activity against the hydroxyl radical of the water soluble components in green and dark roasted Coffea arabica and Coffea robusta coffee samples, both in vitro by the chemical deoxiribose assay and ex vivo in a biological cellular system (IMR32 cells), were determined. All the tested coffee solutions showed remarkable antiradical activity. In the deoxiribose assay, all the tested solutions showed similar inhibitory activity (IA%) against the sugar degradation (IA values ranged from 45.2 to 46.9%). In the cell cultures, the survival increase (SI%) ranged from 197.0 to 394.0% with C. robusta roasted coffee being significantly more active than the other samples. The coffee solutions underwent dialysis (3500 Da cutoff membrane) to fraction their components. In both systems, the dialysates (MW < 3500 Da) either from green or roasted coffee, showed antiradical activity, while the only retentates (MW > 3500 Da) from the roasted coffee samples were active. The preparative gel-filtration chromatography of roasted coffee C. robusta dialysate gave three fractions active in the biological system, all containing chlorogenic acid derivatives. The most active fraction was found to be that containing the 5-O-caffeoilquinic acid, which shows a linear relation dose-response ranging from 0.02 to 0.10 mM. The results show that both green and roasted coffee possess antiradical activity, that their more active component is 5-O-caffeoyl-quinic acid, and moreover that roasting process induces high MW components (later Maillard reaction products, i.e., melanoidins), also possessing antiradical activity in coffee. These results could explain the neuroprotective effects found for coffee consumption in recent epidemiological studies.

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Crossref · 10.1021/jf030298n

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  • Polyphenolic compounds in coffee have antioxidant and antiradical activity in radical-mediated mutagenic pathways.

    “Work by Daglia et al.51 and Stadler et al.52 have found the polyphenolic compounds in coffee to have antioxidant and antiradical activity in radical-mediated mutagenic pathways.”

    From Acidity and Antioxidant Activity of Cold Brew Coffee (2018) · cites this paper as Daglia et al.51

  • The family of chlorogenic acid compounds are known to contribute significantly to the antioxidant activity of coffee.

    “The family of chlorogenic acid compounds are known to contribute significantly to the antioxidant activity of coffee.”

    From Acidity and Antioxidant Activity of Cold Brew Coffee (2018) · cites this paper as Daglia et al.51

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Authors
Daglia, M., Racchi, M., Papetti, A., Lanni, C., Govoni, S., & Gazzani, G.
Affiliations
University of Pavia (IT)
Corresponding author
Gazzani, Gabriella
Venue
Journal of Agricultural and Food Chemistry
Published
2004-02-24
Volume
52
Issue
6
Pages
1700-1704
ISSN
  • 0021-8561 (ISSN-L)
  • 1520-5118
OpenAlex
W1999188170
Cited by
113
References
17
Citations by year
2026: 2 · 2025: 1 · 2024: 3 · 2023: 3 · 2021: 5 · 2020: 2 · 2019: 1 · 2018: 9 · 2017: 8 · 2016: 4 · 2015: 6 · 2014: 6 · 2013: 7 · 2012: 7
FWCI
5.14
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
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
Keywords
coffee, hydroxyl radical scavenging, antioxidant activity, green coffee beans, roasted coffee, Coffea arabica, Coffea robusta, IMR-32 cells, size exclusion chromatography, chlorogenic acid derivatives, 5-caffeoylquinic acid, melanoidins, Maillard reaction products, neuroprotection, coffee consumption
MeSH terms
Antioxidants, Caffeic Acids, Chlorogenic Acid, Hot Temperature, Polymers, Seeds, Thiobarbituric Acid Reactive Substances, Hydroxyl Radical, Coffea

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