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J Med Food. 2011 Dec;14(12):1583-9. doi: 10.1089/jmf.2010.0283. Epub 2011 Jun 11.

Oral administration of an enzymatic protein hydrolysate from the green microalga Chlorella vulgaris enhances the nutritional recovery of malnourished mice.

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Center for Studies on Industrial Biotechnology, Faculty of Natural Sciences, University of Oriente, Santiago de Cuba, Cuba.


This study examined the effects of oral administration of an enzymatic protein hydrolysate from green microalga Chlorella vulgaris (Cv-PH) on the nutritional recovery of malnourished Balb/c mice after a 3-day fasting period. Mice were refed with commercial diet supplemented or not supplemented with Cv-PH (500 mg/kg) for 8 days. Regardless of the diet used during refeeding, animal body weights and serum protein concentrations did not differ between groups. Mice given Cv-PH had a significant increase in hemoglobin concentrations. Most serum amino acid levels were similar in the control and Cv-PH animals. Starved mice refed with Cv-PH showed normal liver functions, as judged by liver weight, protein concentration, and the enzymatic activities of cholinesterase and arginase. Cv-PH increased DNA, protein content, and gut-mucosal weight. In addition, brush-border oligosaccharidase activities were also higher in the Cv-PH group. These findings suggest that Chlorella protein hydrolysate can be used to develop specific formulations suitable for pharmacologic nutrition.

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