Document Detail


Lactose digestion from flavored and frozen yogurts, ice milk, and ice cream by lactase-deficient persons.
MedLine Citation:
PMID:  3116836     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Lactose digestion from and tolerance to flavored and frozen yogurts, ice cream, and ice milk were evaluated (20 g lactose/meal) in lactase-deficient subjects by use of breath hydrogen techniques. Unflavored yogurt caused significantly less hydrogen production than milk (37 vs 185 delta ppm X h, n = 9). Flavored yogurt was intermediate (77 delta ppm X h). Subjects were free of symptoms after consuming flavored and unflavored yogurts. Of seven commercial yogurts tested, all contained significant levels of microbial beta-galactosidase (beta-gal). In addition, eight subjects were fed meals of milk, ice milk, ice cream, and frozen yogurts with and without cultures containing high levels of beta-gal. Peak hydrogen excretion after consumption of frozen yogurt with high beta-gal was less than one-half of that observed after the other five test meals and intolerance symptoms were absent. Tolerance to frozen yogurt, produced under usual commercial procedures, was found to be similar to that of ice milk and ice cream.
Authors:
M C Martini; D E Smith; D A Savaiano
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The American journal of clinical nutrition     Volume:  46     ISSN:  0002-9165     ISO Abbreviation:  Am. J. Clin. Nutr.     Publication Date:  1987 Oct 
Date Detail:
Created Date:  1987-11-13     Completed Date:  1987-11-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0376027     Medline TA:  Am J Clin Nutr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  636-40     Citation Subset:  AIM; IM    
Affiliation:
Department of Food Science and Nutrition, University of Minnesota, St Paul 55108.
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MeSH Terms
Descriptor/Qualifier:
Adult
Animals
Dairy Products*
Humans
Ice Cream*
Lactose / metabolism*
Lactose Intolerance / enzymology,  metabolism*
Male
Middle Aged
Milk / metabolism*
Yogurt*
beta-Galactosidase / analysis
Chemical
Reg. No./Substance:
63-42-3/Lactose; EC 3.2.1.23/beta-Galactosidase

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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