Antioxidant capacity and phytochemical content of 16 sources of corn distillers dried grains with solubles (DDGS).

Although there was no statistically significant correlation between total tocopherols or any tocopherol isomer and antioxidant capacity, as measured by the DPPH assay, interestingly both δ-tocopherol and total tocopherols showed a trend toward an inverse correlation with antioxidant capacity, which, however, was primarily driven by 2 samples with very high antioxidant capacity and very low total tocopherol concentration.

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