Digestion kinetics of potato protein isolates in vitro and in vivo - PubMed (original) (raw)
Randomized Controlled Trial
doi: 10.3109/09637486.2013.793300. Epub 2013 May 28.
Affiliations
- PMID: 23713493
- DOI: 10.3109/09637486.2013.793300
Randomized Controlled Trial
Digestion kinetics of potato protein isolates in vitro and in vivo
Tao He et al. Int J Food Sci Nutr. 2013 Nov.
Abstract
Recently, an industrial process was developed to isolate native protein fractions from potato: a high (HMW) and a low (LMW) molecular weight fraction. Digestion kinetics of HMW and LMW was studied in vitro and in vivo and compared with reference proteins. Under simulated conditions, highest digestion was found for whey protein, followed by soy, pea, HMW, casein and LMW. Ingestion of 20 g of proteins by eight healthy subjects (following a randomized, double-blind, cross-over design) induced a slow and moderate increase with HMW and LMW, while a peaked and high increase with whey protein, in postprandial plasma amino acid levels. Casein gave a similar profile as HMW, with higher levels. Contrary to whey and casein, HMW and LMW did not result in any changes in plasma insulin or glucose levels. This study provides insights in digestion of native potato protein isolates to assist their use as protein sources in food applications.
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