Submit Manuscript

Asian Journal of Plant Sciences

Year: 2010 | Volume: 9 | Issue: 4 | Page No.: 209-214
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 821

Authors

Archana A. Bele

Varsha M. Jadhav

V.J. Kadam

Keywords

Review Article

Potential of Tannnins: A Review

Archana A. Bele, Varsha M. Jadhav and V.J. Kadam
Traditional systems of medicine like ayurvedic system have major treatment across globe. Tannins play an important role and has wide applications. Tanninsare water-soluble polyphenols that are present in many plant foods. They have been reported to be responsible for decreases in feed intake, growth rate, feed efficiency, net metabolizable energy and protein digestibility in experimental animals. Therefore, foods rich in tannins are considered to be of low nutritional value. However, recent findings indicate that the major effect of tannins was not due to their inhibition on food consumption or digestion but rather the decreased efficiency in converting the absorbed nutrients to new body substances. The anticarcinogenic and antimutagenic potentials of tannins may be related to their antioxidative property, which is important in protecting cellular oxidative damage, including lipid peroxidaton. The antimicrobial activities of tannins are well documented. The growth of many fungi, yeasts, bacteria and viruses was inhibited by tannins. We have also found that tannic acid and propyl gallate, but not gallic acid, were inhibitory to foodborne bacteria, aquatic bacteria and off-flavor-producing microorganisms. Their antimicrobial properties seemed to be associated with the hydrolysis of ester linkage between gallic acid and polyols hydrolyzed after ripening of many edible fruits. Tannins in these fruits thus serve as a natural defense mechanism against microbial infections. Tannins have also been reported to exert other physiological effects, such as to accelerate blood clotting, reduce blood pressure, decrease the serum lipid level, produce liver necrosis and modulate immunoresponses.
PDF Fulltext XML References Citation

Related Articles

Phytoconstituents and Their Influence on Antimicrobial Properties of Morinda citrifolia L.
Barleria prionitis Linn.: A Review of its Traditional Uses, Phytochemistry, Pharmacology and Toxicity
Influence of Enzyme and Mordant Treatments on the Antimicrobial Efficacy of Natural Dyes on Wool Materials
Amino Acid Composition, Molecular Weight Distribution and Antioxidant Stability of Shrimp Processing Byproduct Hydrolysate
Phytochemical Evaluation and Radical Scavenging Activity of Bauhinia variegata, Saraca asoka and Terminalia arjuna Barks

Leave a Comment

Your email address will not be published. Required fields are marked *