Document Detail


Folate: a functional food constituent.
MedLine Citation:
PMID:  20492126     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Folate, a water-soluble vitamin, includes naturally occurring food folate and synthetic folic acid in supplements and fortified foods. Mammalian cells cannot synthesize folate and its deficiency has been implicated in a wide variety of disorders. A number of reviews have dwelt up on the health benefits associated with increased folate intakes and many countries possess mandatory folate enrichment programs. Lately, a number of studies have shown that high intakes of folic acid, the chemically synthesized form, but not natural folates, can cause adverse effects in some individuals such as the masking of the hematological manifestations of vitamin B(12) deficiency, leukemia, arthritis, bowel cancer, and ectopic pregnancies. As fermented milk products are reported to contain even higher amounts of folate produced by the food-grade bacteria, primarily lactic acid bacteria (LAB), the focus has primarily shifted toward the natural folate, that is, folate produced by LAB and levels of folate present in foods fermented by/or containing these valuable microorganisms. The proper selection and use of folate-producing microorganisms is an interesting strategy to increase "natural" folate levels in foods. An attempt has been made through this review to share information available in the literature on wide ranging aspects of folate, namely, bioavailability, analysis, deficiency, dietary requirements, and health effects of synthetic and natural folate, dairy and nondairy products as a potential source of folate, microorganisms with special reference to Streptococcus thermophilus as prolific folate producer, and recent insight on modulation of folate production levels in LAB by metabolic engineering.
Authors:
Ramya Iyer; S K Tomar
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Journal of food science     Volume:  74     ISSN:  1750-3841     ISO Abbreviation:  J. Food Sci.     Publication Date:    2009 Nov-Dec
Date Detail:
Created Date:  2010-05-24     Completed Date:  2010-09-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0014052     Medline TA:  J Food Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  R114-22     Citation Subset:  IM    
Affiliation:
Dairy Microbiology Div., Natl. Dairy Research Inst., Karnal 132001, Haryana, India.
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MeSH Terms
Descriptor/Qualifier:
Cultured Milk Products / chemistry,  microbiology
Diet
Folic Acid / administration & dosage*,  adverse effects,  metabolism*
Folic Acid Deficiency / physiopathology,  prevention & control
Food Analysis / methods
Food Microbiology*
Functional Food / analysis*,  microbiology*
Genetic Engineering
Humans
Lactobacillales / metabolism
Streptococcus thermophilus / genetics,  metabolism
Chemical
Reg. No./Substance:
59-30-3/Folic Acid

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


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