Antioxidant Capacity and Total Phenol Content in Hop and Malt Commercial Samples

The antioxidant properties of commercial hops and malted barley were evaluated by electroanalytical methods and compared with spectrophotometric methods. Hop group showed better antioxidant capacity and total phenols content (TPC) values than malt group. The highest electrochemical Index (EI) was ob...

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Bibliographic Details
Published in:Electroanalysis (New York, N.Y.) N.Y.), 2017-12, Vol.29 (12), p.2788-2792
Main Authors: Oliveira Neto, Jerônimo Raimundo, Lopes de Macêdo, Isaac Yves, Lopes de Oliveira, Naiara Raica, de Queiroz Ferreira, Rafael, de Souza Gil, Eric
Format: Article
Language:English
Subjects:
antioxidants
electrochemical index
hop
malt
voltammetry
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Summary:The antioxidant properties of commercial hops and malted barley were evaluated by electroanalytical methods and compared with spectrophotometric methods. Hop group showed better antioxidant capacity and total phenols content (TPC) values than malt group. The highest electrochemical Index (EI) was observed for HCO hop sample. Electrochemical Index (EI) showed a good Pearson correlation with ABTS (2,2′‐azino‐bis (3‐ethylbenzothiazoline‐6‐sulphonic acid)), DPPH (2,2‐diphenyl‐1‐picrylhydrazyl), and TPC, being of 0.85, 0.77 and 0.86 respectively for hop samples. While for the malt samples were 0.96, 0.69 and 0.49, respectively. The samples were compared to each other within each group and statistical differences can be observed, p
ISSN:1040-0397
1521-4109
DOI:10.1002/elan.201700492