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Plant Foods Hum Nutr. 2012 Dec;67(4):358-64. doi: 10.1007/s11130-012-0319-8.

Juice, pulp and seeds fractionated from dry climate primocane raspberry cultivars (Rubus idaeus) have significantly different antioxidant capacity, anthocyanin content and color.

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1
Department of Nutrition, Dietetics, and Food Science, Brigham Young University, S-243 ESC, Provo, UT 84602, USA.

Abstract

Raspberries contain flavonoid antioxidants whose relative concentrations may vary between the juice, pulp, and seed fractions. Oxygen radical absorbance capacity (ORAC), total anthocyanin content, and berry color were determined for six cultivars of primocane raspberries grown in a dry climate (Utah, USA). Significant ORAC differences were found between juice (18.4 ± 0.39 μmol TE/g), pulp (24.45 ± 0.43), and seeds (273.27 ± 11.15) with all Utah cultivars combined. A significantly higher concentration of anthocyanins was present in Utah raspberry juice (20.86 ± 0.35 mg cyanidin-3-glucoside eq./100 g), compared to pulp (13.96 ± 0.35). Anthocyanin content of juice and pulp were significantly positively correlated with dark color (L*). This is the first report of fractional differences in dry climate raspberries, and has implications for the juice and supplement industries.

PMID:
23132011
DOI:
10.1007/s11130-012-0319-8
[Indexed for MEDLINE]

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