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Table 1 Characterization of beverages used in the pilot intervention trial

From: Consumption of anthocyanin-rich beverages affects Nrf2 and Nrf2-dependent gene transcription in peripheral lymphocytes and DNA integrity of healthy volunteers

Parameters

Beverage 1 (red fruit juice)

Beverage 2 (with grape skin extract)

Beverage 3 (bilberry juicea)

TEAC

30 mmol/L

na

na

Total phenols (mg/L gallic acid equivalents)

3.0 g/L

na

4.1 g/L

Total anthocyanins (mg/L cyanidin-3-O-glucoside equivalents)

332.0 mg/L

239.1 mg/L

2454 mg/L

Citric acid

6.0 g/L

1.5 g/L

11.15 g/L

Vitamin C

401 mg/L

na

na

BRIX

13.0°

13.0°

9.75°

Fruit content

100%

20 g extract/L

100%

  1. Beverage 1 (red fruit juice), 2 (juice with grape skin extract) and 3 (bilberry juice)
  2. na not analyzed
  3. aBilberry juice (100%) was used to prepare the two beverages used in the human intervention study (see Table 2)