Antioxidant Activity of Beer: An EPR Experiment for an Undergraduate Physical-Chemistry Laboratory

Max Schmallegger; Georg Gescheidt

doi:10.1021/acs.jchemed.8b00329

Antioxidant Activity of Beer: An EPR Experiment for an Undergraduate Physical-Chemistry Laboratory

Max Schmallegger, Georg Gescheidt^*

^*Corresponding author for this work

Institute of Physical and Theoretical Chemistry (6350)

Research output: Contribution to journal › Article › peer-review

Abstract

This laboratory experiment utilizes an exploration of the storage stability of beer to introduce basic aspects of electron-paramagnetic-resonance (EPR) spectroscopy. Radicals formed upon aerobic forced-aging of beer samples are established by using a spin-trap. The students are introduced to basic principles of EPR spectroscopy and food and radical chemistry with a simple example taken from everyday life. The methodology reported provides the students with valuable insights into EPR spectroscopy and the role of free radicals in food chemistry.

Original language	English
Pages (from-to)	2013-2016
Number of pages	4
Journal	Journal of Chemical Education
Volume	95
Issue number	11
DOIs	https://doi.org/10.1021/acs.jchemed.8b00329
Publication status	Published - 13 Nov 2018

Keywords

EPR/ESR Spectroscopy
Free Radicals
Hands-On Learning/Manipulatives
Physical Chemistry
Upper-Division Undergraduate

ASJC Scopus subject areas

Chemistry(all)
Education

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10.1021/acs.jchemed.8b00329

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AB - This laboratory experiment utilizes an exploration of the storage stability of beer to introduce basic aspects of electron-paramagnetic-resonance (EPR) spectroscopy. Radicals formed upon aerobic forced-aging of beer samples are established by using a spin-trap. The students are introduced to basic principles of EPR spectroscopy and food and radical chemistry with a simple example taken from everyday life. The methodology reported provides the students with valuable insights into EPR spectroscopy and the role of free radicals in food chemistry.

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KW - Free Radicals

KW - Hands-On Learning/Manipulatives

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JO - Journal of Chemical Education

JF - Journal of Chemical Education

IS - 11

ER -

Antioxidant Activity of Beer: An EPR Experiment for an Undergraduate Physical-Chemistry Laboratory

Abstract

Keywords

ASJC Scopus subject areas

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