33G-15


Antioxidant properties of black raspberry seed oil and meal

J. W. PARRY, K. Zhou, and L. Yu. Nutrition & Food Science, Univ. of Maryland, 0112 Skinner Bldg., College Park, MD 20742

Cold-pressed black raspberry seed oil and meal were evaluated for their radical scavenging capacities against stable DPPH, cation ABTS and anion radicals, chelating activity, oxygen radical absorbance capacity (ORAC), and total phenolic content (TPC). Significant radical scavenging capacities, chelating activity, ORAC and TPC were detected in both oil and meal extracts. Further, the meal exhibited stronger free radical scavenging activities against all tested radicals, and had a greater TPC of 46 mg gallic acid equivalent/g. In addition, the DPPH radical scavenging capacity of both oil and meal extracts were dose and time dependent. The results from this study suggest the possible food application of black raspberry seed and its fractions in health promotion and disease prevention through improving human nutrition and potential value-adding opportunities in black raspberry production and processing.

Session 33G, Nutraceuticals & Functional Foods: Lipid and probiotic functional foods
2:00 PM - 5:30 PM, Tuesday PM Room Hall N-1

2004 IFT Annual Meeting, July 12-16 - Las Vegas, NV