Department of Nutrition, Dietetics, and Food Science, Brigham Young University, S-243 ESC, Provo, UT 84602, USA.
Plant Foods Hum Nutr. 2012 Dec;67(4):358-64. doi: 10.1007/s11130-012-0319-8.
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.
覆盆子含有类黄酮抗氧化剂，其相对浓度在果汁、果肉和种子部分之间可能有所不同。对在干燥气候（美国犹他州）中生长的 6 个原生种覆盆子品种的果汁、果肉和种子的氧自由基吸收能力（ORAC）、总花青素含量和浆果颜色进行了测定。将所有犹他州品种合并后，发现果汁（18.4±0.39 μmol TE/g）、果肉（24.45±0.43）和种子（273.27±11.15）之间的 ORAC 差异显著。与果肉（13.96±0.35）相比，犹他州覆盆子果汁中的花青素浓度（20.86±0.35 mg 矢车菊素-3-葡萄糖苷当量/100 g）显著更高。果汁和果肉中的花青素含量与深色（L*）呈显著正相关。这是关于干燥气候下覆盆子的成分差异的首次报道，对果汁和保健品行业有一定的启示。
