Bioactivity of Fermented Green Coffee Bean Extract Containing High Chlorogenic Acid and Surfactin

Boyong Kim, Dong Sook Lee, Hyeong Seok Kim, Taegun Park, Jin Kwan Kim, Suhng Wook Kim, Boo Hyung Lee, Hyun Im Lee, Inyong Kim, Yoonhwa Jeong, Seung Kwan Lee

Research output: Contribution to journalArticle

Abstract

Chlorogenic acid (CGA) is a major component of green coffee beans. Surfactin, a cyclic lipopeptide, is produced and secreted by Bacillus subtilis strains. In this study, bioactivities of fermented green coffee bean extract (FGCBE) and the individual compounds, CGA and surfactin. were compared in HepG2 cells. The concentration of surfactin and CGA in the FGCBE and non-fermented green coffee bean extract (NFGCBE) were determined to be 9.2 and 7.33 and 0.72 and 0.53 mg·mL-1, respectively. The FGCBE contained about 20% and 26% more CGA and surfactin than the NFGCBE. Although CGA and surfactin exhibited cytotoxicity at concentrations more than 100 and 20 μg respectively, the FGCBE 50 containing CGA (460 μg·mL-1) and surfactin (720 μg·mL-1) effectively prevented cell death by oxidative stress and also strongly activated the proliferation of cells incubated with under 50 μM H2O2. The CGA and surfactin in FGCBE were 9.2 and 72 times higher than the CGA and surfactin compounds (50 and 10 μg·mL-1). The relative proliferation of the FGCBE-treated cells also was 3.3 and 8.8 times higher than the CGA and surfactin compounds treated the oxidative stressed cells with 50 μM H2O2. These results suggest that the single compounds such as CGA and surfactin generally have cytotoxicity at low concentration of them but FGCBE contained them acted as strong antioxidants, activators of cell proliferation, inhibitors of cell apoptosis. Various bioactive compounds in fermented coffee bean also seem to help cell proliferation and decreasing of cytotoxicity by CGA and surfactin in coffee bean.

Original languageEnglish
Pages (from-to)305-313
Number of pages9
JournalJournal of Medicinal Food
Volume22
Issue number3
DOIs
Publication statusPublished - 2019 Mar 1

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Chlorogenic Acid
Coffee
Cell Proliferation
Lipopeptides
Hep G2 Cells
Bacillus subtilis
Cell Extracts
Oxidative Stress
Cell Death

Keywords

  • chlorogenic acid
  • fermentation
  • HepG2 cell
  • oxidative stress
  • surfactin

ASJC Scopus subject areas

  • Medicine (miscellaneous)
  • Nutrition and Dietetics

Cite this

Bioactivity of Fermented Green Coffee Bean Extract Containing High Chlorogenic Acid and Surfactin. / Kim, Boyong; Lee, Dong Sook; Kim, Hyeong Seok; Park, Taegun; Kim, Jin Kwan; Kim, Suhng Wook; Lee, Boo Hyung; Lee, Hyun Im; Kim, Inyong; Jeong, Yoonhwa; Lee, Seung Kwan.

In: Journal of Medicinal Food, Vol. 22, No. 3, 01.03.2019, p. 305-313.

Research output: Contribution to journalArticle

Kim, B, Lee, DS, Kim, HS, Park, T, Kim, JK, Kim, SW, Lee, BH, Lee, HI, Kim, I, Jeong, Y & Lee, SK 2019, 'Bioactivity of Fermented Green Coffee Bean Extract Containing High Chlorogenic Acid and Surfactin', Journal of Medicinal Food, vol. 22, no. 3, pp. 305-313. https://doi.org/10.1089/jmf.2018.4262
Kim, Boyong ; Lee, Dong Sook ; Kim, Hyeong Seok ; Park, Taegun ; Kim, Jin Kwan ; Kim, Suhng Wook ; Lee, Boo Hyung ; Lee, Hyun Im ; Kim, Inyong ; Jeong, Yoonhwa ; Lee, Seung Kwan. / Bioactivity of Fermented Green Coffee Bean Extract Containing High Chlorogenic Acid and Surfactin. In: Journal of Medicinal Food. 2019 ; Vol. 22, No. 3. pp. 305-313.
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AU - Kim, Suhng Wook

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AB - Chlorogenic acid (CGA) is a major component of green coffee beans. Surfactin, a cyclic lipopeptide, is produced and secreted by Bacillus subtilis strains. In this study, bioactivities of fermented green coffee bean extract (FGCBE) and the individual compounds, CGA and surfactin. were compared in HepG2 cells. The concentration of surfactin and CGA in the FGCBE and non-fermented green coffee bean extract (NFGCBE) were determined to be 9.2 and 7.33 and 0.72 and 0.53 mg·mL-1, respectively. The FGCBE contained about 20% and 26% more CGA and surfactin than the NFGCBE. Although CGA and surfactin exhibited cytotoxicity at concentrations more than 100 and 20 μg respectively, the FGCBE 50 containing CGA (460 μg·mL-1) and surfactin (720 μg·mL-1) effectively prevented cell death by oxidative stress and also strongly activated the proliferation of cells incubated with under 50 μM H2O2. The CGA and surfactin in FGCBE were 9.2 and 72 times higher than the CGA and surfactin compounds (50 and 10 μg·mL-1). The relative proliferation of the FGCBE-treated cells also was 3.3 and 8.8 times higher than the CGA and surfactin compounds treated the oxidative stressed cells with 50 μM H2O2. These results suggest that the single compounds such as CGA and surfactin generally have cytotoxicity at low concentration of them but FGCBE contained them acted as strong antioxidants, activators of cell proliferation, inhibitors of cell apoptosis. Various bioactive compounds in fermented coffee bean also seem to help cell proliferation and decreasing of cytotoxicity by CGA and surfactin in coffee bean.

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