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Comparison of acrylamide and furan concentrations, antioxidant activities, and volatile profiles in cold or hot brew coffees

  • Da-eun Kang
  • Haeng-Un Lee
  • Munkhtugs Davaatseren
  • Myung-Sub ChungEmail author
Article
  • 10 Downloads

Abstract

The aim of this study was to investigate the formation of furan and acrylamide and to compare antioxidant capacities and volatile compounds in cold or hot brewed coffees. Cold brews were prepared at 5 °C and 20 °C for 12 h. using steeping and dripping, and hot brews were prepared at 80 °C and 95 °C for 5 min. using the pour-over method. Furan contents of cold steeping at 5 °C and hot brewed at 80 °C showed the higher levels significantly (p < 0.05), which were 17.0 ± 0.5 and 10.6 ± 0.1 ng/mL, respectively. However, acrylamide contents in cold steeping at 5 °C and hot brew at 80 °C showed lower levels, which were 4.1 ± 0.4 and 3.5 ± 0.1 ng/mL respectively. Cold brews at 20 °C showed the highest levels of antioxidant activities while hot brews showed similar levels with cold brews at 5 °C. This study confirms that levels of different beneficial and hazardous chemical compounds could be manipulated by adjusting the coffee extraction conditions.

Keywords

Coffee Cold brew Hot brew Furan Acrylamide Volatile compounds 

Notes

Acknowledgements

This research was supported by the Chung-Ang University Graduate Research Scholarship in 2018.

Compliance with ethical standards

Conflict of interests

The authors declare that they have no conflict of interest.

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Copyright information

© The Korean Society of Food Science and Technology 2019

Authors and Affiliations

  • Da-eun Kang
    • 1
  • Haeng-Un Lee
    • 1
  • Munkhtugs Davaatseren
    • 1
  • Myung-Sub Chung
    • 1
    Email author
  1. 1.Department of Food Science and TechnologyChung-Ang UniversityAnseong-SiKorea

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