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Molecules 2014, 19(7), 10208-10217; doi:10.3390/molecules190710208

Identification of Catechol as a New Marker for Detecting Propolis Adulteration

1
College of Animal Sciences, Zhejiang University, Hangzhou 310058, China
2
Faculty of Pharmacy, University of Sydney, Sydney, NSW 2006, Australia
*
Author to whom correspondence should be addressed.
Received: 18 June 2014 / Revised: 2 July 2014 / Accepted: 10 July 2014 / Published: 14 July 2014
(This article belongs to the Special Issue Natural Antioxidants and Ageing)
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Abstract

Adulteration of propolis with poplar extract is a serious issue in the bee products market. The aim of this study was to identify marker compounds in adulterated propolis, and examine the transformation of chemical components from poplar buds to propolis. The chemical profiles of poplar extracts and propolis were compared, and a new marker compound, catechol, was isolated and identified from the extracts of poplar buds. The polyphenol oxidase, catechol oxidase, responsible for catalyzing oxidation of catechol was detected in poplar buds and propolis. The results indicate catechol can be used as a marker to detect propolis adulterated with poplar extract. View Full-Text
Keywords: propolis; poplar extract; catechol; polyphenol oxidase; biosynthesis propolis; poplar extract; catechol; polyphenol oxidase; biosynthesis
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This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Huang, S.; Zhang, C.-P.; Li, G.Q.; Sun, Y.-Y.; Wang, K.; Hu, F.-L. Identification of Catechol as a New Marker for Detecting Propolis Adulteration. Molecules 2014, 19, 10208-10217.

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