Plant Foods for Human Nutrition

, Volume 67, Issue 4, pp 358–364 | Cite as

Juice, Pulp and Seeds Fractionated from Dry Climate Primocane Raspberry Cultivars (Rubus idaeus) Have Significantly Different Antioxidant Capacity, Anthocyanin Content and Color

  • Shannon M. Snyder
  • Richard M. Low
  • Janet C. Stocks
  • Dennis L. Eggett
  • Tory L. Parker
Original Paper

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.

Keywords

Raspberry Antioxidants Anthocyanin Color ORAC 

Abbreviations

AWA

70:29.5:0.5 acetone:water:acetic acid

ORAC

Oxygen radical absorbance capacity

TAC

Total anthocyanin content

SE

Standard error

nd

Not detected

cyn-3-glu eq.

Cyanidin-3-glucoside equivalents

TE

Trolox equivalents

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Copyright information

© Springer Science+Business Media New York 2012

Authors and Affiliations

  • Shannon M. Snyder
    • 1
  • Richard M. Low
    • 1
  • Janet C. Stocks
    • 2
  • Dennis L. Eggett
    • 3
  • Tory L. Parker
    • 1
  1. 1.Department of Nutrition, Dietetics, and Food ScienceBrigham Young UniversityProvoUSA
  2. 2.Cornaby FarmsSalemUSA
  3. 3.Department of StatisticsBrigham Young UniversityProvoUSA

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