Jennifer Jeffery has since graduated from TAMU.
Carotenoid bioaccessibility from nine raw carotenoid-storing fruits and vegetables using an in vitro model†
Article first published online: 17 JUL 2012
Copyright © 2012 Society of Chemical Industry
Journal of the Science of Food and Agriculture
Volume 92, Issue 13, pages 2603–2610, October 2012
How to Cite
Jeffery, J. L., Turner, N. D. and King, S. R. (2012), Carotenoid bioaccessibility from nine raw carotenoid-storing fruits and vegetables using an in vitro model . J. Sci. Food Agric., 92: 2603–2610. doi: 10.1002/jsfa.5768
Jennifer Waters, Mark Failla, Ann Ellis and Stephen King, Correlation of bioaccessibility and cellular structure in carotenoid-containing fruits and vegetables, Minority Serving Institutions Research Partnerships Conference, Edinberg, TX, USA, February 2006.
- Issue published online: 12 SEP 2012
- Article first published online: 17 JUL 2012
- Manuscript Accepted: 20 MAY 2012
- Manuscript Revised: 8 MAY 2012
- Manuscript Received: 17 MAY 2011
- in vitro digestion
BACKGROUND: Many techniques exist for processing fruits and vegetables. The impact of these processes on nutritional qualities of the food can be considerable, however. Given the benefits of eating raw foods, nutrient sources need to be identified that deliver substantial benefit without cooking. In this study a survey of carotenoid bioaccessibility was carried out in order to additionally evaluate the impact of their distinctive storage structures (chromoplasts) on bioaccessibility.
RESULTS: Per cent carotenoid bioaccessibility varied among the nine raw, whole fruits and vegetables evaluated, with values of 1–39% for lycopene, 18–20% for α-carotene, 7–49% for β-carotene, 9–59% for lutein, 4–22% for violaxanthin and 47–96% for phytoene. Per 100 g of food, grapefruit and watermelon imparted the most lycopene (69 and 64 µg respectively), carrot the most α-carotene (559 µg), β-carotene (1078 µg), lutein (91 µg) and phytoene (23 mg) and mango the most violaxanthin (177 µg). Digestive stability averaged over 80%, except for the xanthophylls, which exhibited a wider and lower range of stabilities.
CONCLUSION: These data identify raw food sources for carotenoid bioaccessibilities comparable to those of other foods accomplished by substantial processing. The information presented here also has application in identifying appropriate plant-breeding goals and optimal sources for commercial carotenoid isolations. Copyright © 2012 Society of Chemical Industry