Document Detail


Antioxidant activity of the new black vinegar "IZUMI".
MedLine Citation:
PMID:  21125203     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: "IZUMI" is a new kind of vinegar resulting from an improvement in the manufacturing method of Kurosu, a traditional vinegar product made from unpolished rice. We evaluated the antioxidant activity of this new Kurosu by means of measuring the level of diacron-reactive oxygen metabolites (d-ROM), the biological antioxidant potential (BAP), as well as RBC deformability using the microchannel array flow method.
PARTICIPANTS: Ten healthy, untrained female volunteers participated in this study.
MEASUREMENTS: All subjects drank 50 ml of "IZUMI" on a daily basis, and blood samples were collected pre-"IZUMI" (I), after one month "IZUMI" consumption (II), and after two months "IZUMI" consumption (III). The subjects continuously wore a lifecorder during a 7-day period and the nutritional intake was measured before the initial blood sample collection.
RESULTS: There were no significant changes in weight, BMI, fat mass, or fat-free mass. There were no significant differences in daily energy consumption, physical activity and nutritional intake. Peripheral blood variables did not change significantly. The drinking of " IZUMI " increased serum BAP level gradually, and after 30 days it was significantly higher as compared to the pre-drinking level. The serum level of d-ROM and blood filtration time (BFT) decreased by drinking "IZUMI"; with d-ROM significantly lower than the pre-drinking level after 30 days and BFT significantly decreased after 60 days (all P < 0.05).
CONCLUSIONS: These results suggest that "IZUMI", a Kurosu containing a higher level of amino acids, increases antioxidant activity and reduces oxidative stress and blood filtration time in female subjects.
Authors:
M Nagashima; K Saito
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  The journal of nutrition, health & aging     Volume:  14     ISSN:  1760-4788     ISO Abbreviation:  J Nutr Health Aging     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-02     Completed Date:  2011-02-14     Revised Date:  2011-06-15    
Medline Journal Info:
Nlm Unique ID:  100893366     Medline TA:  J Nutr Health Aging     Country:  France    
Other Details:
Languages:  eng     Pagination:  845-9     Citation Subset:  IM    
Affiliation:
Department of Sport Life Style Management, National Institute of Fitness and Sports in Kanoya, Kanoya City, Japan. nagasima@nifs-k.ac.jp
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MeSH Terms
Descriptor/Qualifier:
Acetic Acid / administration & dosage*,  adverse effects
Amino Acids / administration & dosage,  adverse effects,  analysis
Antioxidants / administration & dosage*,  adverse effects,  metabolism*
Beverages* / adverse effects,  analysis
Diet
Diet Records
Erythrocyte Deformability
Female
Fermentation
Functional Food* / adverse effects,  analysis
Humans
Middle Aged
Oryza sativa / chemistry,  metabolism
Oxidative Stress*
Reactive Oxygen Species / blood*
Seeds / chemistry,  metabolism
Time Factors
Chemical
Reg. No./Substance:
0/Amino Acids; 0/Antioxidants; 0/Reactive Oxygen Species; 64-19-7/Acetic Acid

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