In vitro bioaccessibility of beta-carotene in orange fleshed sweet potato (Ipomoea batatas, Lam.)

Journal of Agricultural and Food Chemistry
M L FaillaJung Y Kim

Abstract

Substitution of white with orange fleshed varieties of sweet potatoes (OFSP) was recently shown to alleviate vitamin A deficiency in children in Africa. However, the relationship between beta-carotene (BC) content of different cultivars of OFSP and its bioavailability is unknown. Here, we used the three phase (oral, gastric and small intestinal) in vitro digestion procedure to examine the bioaccessibility of BC from eight cultivars of boiled OFSP. All-trans BC (all-E-BC) was the only isomer of BC detected in raw roots for cultivars of OFSP with amounts ranging from 112 to 281 microg/g. Boiling OFSP decreased all-E-BC content by 11% with conversion to 13-cis BC (13-Z-BC). The efficiency of BC micellarization during simulated digestion of boiled OFSP was only 0.6-3%. Addition of soybean oil (2% vol/wt) to boiled OFSP prior to in vitro digestion more than doubled partitioning of all-E-BC in the micelle fraction for all cultivars. The relatively poor bioaccessibility of all-E-BC was not a limitation of the in vitro model as micellarization was proportional to amount of OFSP digested from 0.5 to 3.0 g and minimally altered by increasing bile salt content during small intestinal digestion. Moreover, micellarization of all-E-BC from b...Continue Reading

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Citations

Aug 9, 2011·Journal of Agricultural and Food Chemistry·Aurélie BechoffClaudie Dhuique-Mayer
Jan 10, 2012·Journal of Agricultural and Food Chemistry·Marie PoulaertClaudie Dhuique-Mayer
May 23, 2013·Journal of Agricultural and Food Chemistry·Tristan E LipkieMario G Ferruzzi
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Feb 9, 2016·Critical Reviews in Food Science and Nutrition·Amber N FurrerMario G Ferruzzi
Jan 9, 2014·Journal of Agricultural and Food Chemistry·Carolien A Van Loo-BouwmanGertjan Schaafsma
Sep 12, 2015·Journal of Agricultural and Food Chemistry·Xuan LiuDavid Julian McClements
Oct 2, 2014·Journal of the Science of Food and Agriculture·Betty J Burri
Dec 2, 2014·Journal of Genetics and Genomics = Yi Chuan Xue Bao·Yufan FuXiaozhong Lan
Mar 4, 2017·Current Opinion in Biotechnology·Giovanni Giuliano
Feb 12, 2017·Annals of the New York Academy of Sciences·Sherry A TanumihardjoKevin V Pixley
Dec 23, 2016·Annals of the New York Academy of Sciences·Aurélie Bechoff, Claudie Dhuique-Mayer
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Jul 13, 2018·Critical Reviews in Food Science and Nutrition·Delphine AmahMaryke Labuschagne
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Nov 9, 2018·Frontiers in Nutrition·Claudie Dhuique-MayerYery Mendoza
Jul 1, 2014·Comprehensive Reviews in Food Science and Food Safety·M AlmingerC N Santos

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