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J Agric Food Chem. 2019 Aug 14;67(32):8819-8838. doi: 10.1021/acs.jafc.9b02664. Epub 2019 Aug 5.

Metabolite Profiling of Two Maple-Derived Products Using Dereplication Based on High-Performance Liquid Chromatography-Diode Array Detector-Electrospray Ionization-Time-of-Flight-Mass Spectrometry: Sugar Maple Bark and Bud Hot-Water Extracts.

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Renewable Materials Research Center (CRMR) , Université Laval , Quebec City , Quebec , Canada G1V 0A6.
Institute of Nutrition and Functional Foods (INAF) , Université Laval , Quebec City , Quebec , Canada G1V 0A6.
Research Center of Rheumatology and Immunology (CRRI), Department of Medicine , Université Laval , Quebec City , Quebec , Canada G1V 0A6.


Recent studies about hot-water extracts from sugar maple (Acer saccharum Marsh.) bark and buds demonstrated that they contain high amounts of phenolic structures that may be used as antioxidant food additives. However, the detailed chemical composition of these maple-derived extracts has yet to be determined. By performing high-performance liquid chromatography-diode array detector-high-resolution mass spectrometry (HPLC-DAD-HRMS)-based dereplication, we were able to spike and classify almost 100 metabolites in each hot-water extract. The sugar maple bark hot-water extract is rich in simple phenolic compounds and phenylpropanoid derivatives, while bud extract contains predominantly flavonoids, benzoic acids, and their complex derivatives (condensed and hydrolyzable tannins). Among those chemical structures, we tentatively identified 69 phenolic compounds potentially reported for the first time in the genus Acer. Considering the growing commercial demand in natural products, the phenolic fingerprints of sugar maple bark and bud hot-water extracts will help in promoting these two maple-derived products as new sources of bioactive compounds in the food, nutraceutical, and cosmetic industries.


Marsh.; LC−MS; dereplication; metabolite profiling; phenolic compounds


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