Determination of lead, manganese, copper, zinc, cadmium, nickel and chromium in tea leaves

International Journal of Pharmacy and Pharmaceutical Sciences

Volumn 3, Issue 4, 2011, Pages 257-258

  Srividhya, B ^a   Subramanian, R ^b   Raj, V ^b  

^a K S RANGASAMY COLLEGE OF TECHNOLOGY   (India)

^b PERIYAR UNIVERSITY   (India)

Author keywords

AAS; Black tea; Green tea; Heavy metals

Indexed keywords

BLACK TEA EXTRACT; CADMIUM; CHROMIUM; COPPER; GREEN TEA EXTRACT; LEAD; MANGANESE; NICKEL; ZINC;

ARTICLE; ATOMIC ABSORPTION SPECTROMETRY; CHEMICAL COMPOSITION; INDIA; LIMIT OF QUANTITATION; NONHUMAN; TEA;

EID: 80054855643     PISSN: None     EISSN: 09751491     Source Type: Journal    
DOI: None     Document Type: Article

References (18)

1. Zhu Q.Y., Hickman R.M., Ensues J.L., Holt R.R., Keen C.L., Antioxidative activity of oolong tea. J. Agric. Food Chem. 2002; 50: 6929-6934.
2. Ostrowska J., Stankiewcz A., Skrzydlewska E., Antioxidant properties of green tea. Bromotol. Toxicol. Chem. 2001; 2: 131.
3. Chandra S., De Mejia Gonzalez E., Polyphenolic compounds, antioxidant capacity, and quinone reductase activity of an aqueous extract of Ardisia compressa in comparison to mate (Ilex paraguariensis) and green (Camellia sinensis) teas. J. Agric. Food Chem. 2004; 52: 3583-3589.
4. Maron D. J., Lu G. P., Cai N. S., Wu Z. G., Li Y. H., Chen H., Zhu J. Q., Jin X., J., Wouters B. C., Zhao J., Cholesterollowering effect of a theaflavin-enriched green tea extract: a randomized controlled trial. Arch. Intern. Med. 2003; 163: 1448-1453.
5. Hasegawa R., Chujo T., Sai-Kato K., Umemura T., Tanimura A., Kurokawa Y., Preventive effects of green tea against liver oxidative DNA damage and hepatotoxicity in rats treated with 2-nitropropane. Food Chem. Toxicol. 1995; 33: 961-970.
6. Fujiki H. Green tea: health benefits as cancer preventive for humans. Chem. Rec. 2005; 5: 119-132.
7. Bettuzzi S., Brausi M., Rizzi F., Castagnetti G., Peracchia G., Corti A., Chemoprevention of human prostate cancer by oral administration of green tea catechins in volunteers with highgrade prostate intraepithelial neoplasia: a preliminary report from a one-year proof-of-principle study. Cancer Res. 2006; 66: 1234-1240.
8. Seenivasan S., Manikandan N., Muraleedharan N.N., Selvasundaram R., Heavy metal content of black teas from south India, Food Control. 2008; 19: 746-749.
9. Deepak, K., Trace elemental analysis and vitamins from an Indian medicinal plant nepetahindostana (roth) haimes. Int J Pharm Pharm Sci, 3, 2011, 53-54.
10. Friedman, M., Overview of antibacterial, antitoxin, antiviral and antifungal activities of tea flavonoids and tea. Mol. Nutr. Food Res. 51, 116-134.
11. Sang S., Cheng X., Stark R.E., Rosen R.T., Yang C.S., Ho C.T., Chemical studies on antioxidant mechanism of tea catechins: analysis of radical reaction products of catechin and epicatechin with 2, 2-diphenyl-1-picrylhydrazyl. Bioorg. Med. Chem. 2002; 10: 2233-2237.
12. Oguni I., 2002. Chinese Green Tea. Department of Food and Nutritional Sciences, University of Shizuoka, Hamamatsu College, Japan.
13. Cabrera C., Gallego C., Lopez M.C., Lorenzo M.L., Determination of levels of Lead contamination in Food and Feed Crops. J Assoc. Official Methods for Analysis. 1994; 77: 1249-1252.
14. AOAC, Official Methods of Analysis. AOAC International, 17th Eds. 2000.
15. Achudume A.C., Owoeye D., Quantitative assessment of heavy metals in some tea marketed in Nigeria. Bioaccumulation of heavy metals in tea. Health. 2010; 2: 1097-1100.
16. Xie M., Bohlen V.A., Klockenkamper R., Jian X., Gunter K., Multielement analysis of Chinese tea (Camellia Sinensis) by total-reflection X-ray fluorescence. Z Lebensm Unters Forsch A. 1998; 207: 31-38.
17. Ferrara L., Montesanoa D., Senatore A., The distribution of minerals and flavonoids in the tea plant (Camellia sinensis). II Farmaco. 2001; 56: 397-401.
18. Marcos A., Fisher G., Ree G., Hill S.J., Preliminary study using trace element concentrations and a chemometrics approach to determine the geological origin of tea. J. Anal. Atomic Spectr. 1998; 113: 521-525.