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ERIC Number: EJ927041
Record Type: Journal
Publication Date: 2011-Apr
Pages: 4
Abstractor: As Provided
ISSN: ISSN-0021-9584
Two Methods of Determining Total Phenolic Content of Foods and Juices in a General, Organic, and Biological (GOB) Chemistry Lab
Shaver, Lee Alan; Leung, Sam H.; Puderbaugh, Amy; Angel, Stephen A.
Journal of Chemical Education, v88 n4 p492-495 Apr 2011
The determination of total phenolics in foods and fruit juices was used successfully as a laboratory experiment in our undergraduate general, organic, and biological (GOB) chemistry course. Two different colorimetric methods were used over three years and comparative student results indicate that a ferrous ammonium sulfate (FAS) indicator procedure was a good choice for our GOB laboratory. The more complex Folin-Ciocalteu (FC) reagent method, which was applied to solid foods, also performed well, but was better suited for general chemistry students with better laboratory skills. The GOB students also learn about the benefits of phenolic antioxidants and their relative levels in various foods. (Contains 1 table.)
Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A