In vitro and in vivo antioxidant and anti-inflammatory capacities of an antioxidant-rich fruit and berry juice blend. Results of a pilot and randomized, double-blinded, placebo-controlled, crossover study

J Agric Food Chem. 2008 Sep 24;56(18):8326-33. doi: 10.1021/jf8016157. Epub 2008 Aug 22.

Abstract

This study investigated the in vitro and in vivo antioxidant and anti-inflammatory properties of a juice blend (JB), MonaVie Active, containing a mixture of fruits and berries with known antioxidant activity, including acai, a palm fruit, as the predominant ingredient. The phytochemical antioxidants in the JB are primarily in the form of anthocyanins, predominantly cyanidin 3-rutoside, cyanidin 3-diglycoside, and cyanidin 3-glucoside. The cell-based antioxidant protection of erythrocytes (CAP-e) assay demonstrated that antioxidants in the JB penetrated and protected cells from oxidative damage ( p < 0.001), whereas polymorphonuclear cells showed reduced formation of reactive oxygen species ( p < 0.003) and reduced migration toward three different pro-inflammatory chemoattractants: fmlp ( p < 0.001), leukotriene B4 ( p < 0.05), and IL-8 ( p < 0.03). A randomized, double-blinded, placebo-controlled, crossover trial with 12 healthy subjects examined the JB's antioxidant activity in vivo. Blood samples at baseline, 1 h, and 2 h following consumption of the JB or placebo were tested for antioxidant capacity using several antioxidant assays and the TBARS assay, a measure of lipid peroxidation. A within subject comparison showed an increase in serum antioxidants at 1 h ( p < 0.03) and 2 h ( p < 0.015), as well as inhibition of lipid peroxidation at 2 h ( p < 0.01) postconsumption.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Anthocyanins / administration & dosage
  • Anti-Inflammatory Agents / administration & dosage*
  • Antioxidants / administration & dosage*
  • Beverages*
  • Cross-Over Studies
  • Double-Blind Method
  • Fruit / chemistry*
  • Humans
  • Middle Aged
  • Neutrophils / drug effects
  • Pilot Projects
  • Placebos
  • Reactive Oxygen Species / blood
  • Thiobarbituric Acid Reactive Substances / analysis

Substances

  • Anthocyanins
  • Anti-Inflammatory Agents
  • Antioxidants
  • Placebos
  • Reactive Oxygen Species
  • Thiobarbituric Acid Reactive Substances