Abstract
The potential health benefits of green tea sand herbal teas have led to an increased demand of specialty tea products in the food market. Aims: To determine the proximate composition, phytochemical compositions and hypoglycemic potentials of the methanol and hot water extracts of the stems of wild berries from Eastern Canada. Study Design: Extraction of the air - dried stems of wild berries with bot h methanol and hot water, and testing the various extracts for the proximate composition, phytochemical composition and hypoglycemic potentials in comparison to green tea and rose - hip fruit. Place and Duration of Study : The stems of wild blueberry, raspber ry and blackberry along with rose - hip fruits were collected from the wild habitats of Windsor area of Nova Scotia, Canada in the year 2013; while the commercial green tea was purchased from a local store (Bulk B arn, Truro, Nova Scotia). Methodology: Phenol ic composition and characterization was done using spectrophotometric analyses and UPLC - ES I - MS. Carotenoid and caffeine content were measured using HPLC - PDA. The antioxidant capacities were evaluated using ferric reducing ability of plasma (FRAP), 2,2 diphenyl - 1 - picrylhydrazyl (DPPH)and oxygen radical absorbance capacity (ORAC) assays. The Original Research Article
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