Carotenoid profiles in provitamin A-containing fruits and vegetables affect the bioefficacy in Mongolian gerbils

Exp Biol Med (Maywood). 2010 Jul;235(7):839-48. doi: 10.1258/ebm.2010.009216.

Abstract

Fruits and vegetables are rich sources of provitamin A carotenoids. We evaluated the vitamin A (VA) bioefficacy of a whole foods supplement (WFS) and its constituent green vegetables (Study 1) and a variety of fruits with varying ratios of provitamin A carotenoids (Study 2) in VA-depleted Mongolian gerbils (n = 77/study). After feeding a VA-deficient diet for 4 and 6 weeks in Studies 1 and 2, respectively, customized diets, equalized for VA, were fed for 4 and 3 weeks, respectively. Both studies utilized negative and VA-positive control groups. In Study 1, liver VA was highest in the VA group (0.82 +/- 0.16 micromol/liver, P < 0.05), followed by brussels sprouts (0.50 +/- 0.15 micromol/liver), Betanat (beta-carotene from Blakeslea trispora) (0.50 +/- 0.12 micromol/liver) and spinach (0.47 +/- 0.09 micromol/liver) groups, which did not differ from baseline. The WFS (0.44 +/- 0.06 micromol/liver) and kale (0.43 +/- 0.14 micromol/liver) groups had lower liver VA than the baseline group (P < 0.05), but did not differ from the brussels sprouts, Betanat and spinach groups. In Study 2, liver VA was highest in the orange (0.67 +/- 0.18 micromol/liver), papaya (0.67 +/- 0.15 micromol/liver) and VA (0.66 +/- 0.14 micromol/liver) groups, followed by the mango (0.58 +/- 0.09 micromol/liver) and tangerine (0.55 +/- 0.15 micromol/liver) groups. These groups did not differ from baseline. The banana group (0.47 +/- 0.15 micromol/liver) was unable to maintain baseline stores of VA and did not differ from the control (0.46 +/- 0.13 mumol/liver). These fruits (except banana), vegetables and the WFS were able to prevent VA deficiency in Mongolian gerbils and could be an effective part of food-based interventions to support VA nutrition in developing countries and worldwide.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Brassica / chemistry
  • Carica / chemistry
  • Carotenoids / analysis
  • Carotenoids / metabolism*
  • Carotenoids / pharmacology
  • Citrus / chemistry
  • Citrus sinensis / chemistry
  • Cryptoxanthins
  • Fruit* / chemistry
  • Gerbillinae
  • Liver / chemistry
  • Lutein / analysis
  • Male
  • Mangifera / chemistry
  • Spinacia oleracea / chemistry
  • Vegetables* / chemistry
  • Vitamin A / analysis
  • Vitamin A Deficiency / metabolism*
  • Vitamin A Deficiency / prevention & control
  • Xanthophylls / analysis
  • beta Carotene / analysis

Substances

  • Cryptoxanthins
  • Xanthophylls
  • beta Carotene
  • Vitamin A
  • Carotenoids
  • alpha-carotene
  • Lutein