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International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2018: 95.39
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2018: 95.39
For more details click here

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Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2018.7(5): 1163-1169
DOI: https://doi.org/10.20546/ijcmas.2018.705.141


Study of Antioxidant Properties in Black Tea and Green Tea
Kiran1* and Pradeep Kumar2
1Department of Biochemistry, Dr Rajendra Prasad Central Agricultural University, Pusa, Samastipur (Bihar) - 848125, India
2Department of Agricultural Biotechnology and Molecular Biology, Dr Rajendra Prasad Central Agricultural University, Pusa, Samastipur (Bihar) - 848125, India
*Corresponding author
Abstract:

The present study was conducted to assess and compare the total polyphenol content (TPC), antioxidant activity in black and green tea. The green tea showed a higher polyphenol content and antioxidant levels than black tea (p < 0.05). The variations in polyphenolic levels in black tea (2.11- 0.26 mg TAE/g) and green tea (5.20- 1.17 mg TAE/g) observed in our study. In black tea, the FRAP levels ranged from (5.58 mg AAE/g to 1.21 mg AAE/g) whereas in green tea has ranged (8.88 mg AAE/g to 3.26 mg AAE/g. The total antioxidant capacity in green tea (22.866±7.036 mg AAE/g) is significantly higher than in black tea (3.386±1.28 mg AAE/g). The activities of antioxidant were well correlated the total polyphenol content r2 = 0.9571 for FRAP method and r2 = 0.9287 for Polymolybdenum assay. The Assam and Darjeeling green tea (North East India) had higher TPC and antioxidant levels than Munnar, Coimbatore Nilgiri green tea (south India). However, the more studies on Indian tea to emphasize the health benefits of Indian tea especially green tea which will help in its increased consumption as a favorite beverage in India.


Keywords: Green tea, Black tea, TPC, Total antioxidant, FRAP activity
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How to cite this article:

Kiran and Pradeep Kumar. 2018. Study of Antioxidant Properties in Black Tea and Green Tea.Int.J.Curr.Microbiol.App.Sci. 7(5): 1163-1169. doi: https://doi.org/10.20546/ijcmas.2018.705.141