Effect of different brewing times on antioxidant activity and polyphenol content of loosely packed and bagged black teas (Camellia sinensisL.)
Objective: Determination and comparison of the effect of infusion time on the antioxidant activity and total polyphenol contents of bagged and loosely packed black teas. Materials and Methods: For twenty loosely packed and eleven bagged tea samples, the antioxidant activity and total polyphenol cont...
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| Format: | Book |
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Mashhad University of Medical Sciences,
2016-04-01T00:00:00Z.
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| LEADER | 00000 am a22000003u 4500 | ||
|---|---|---|---|
| 001 | doaj_e67efea053f942b5943f89a18fcdf1ff | ||
| 042 | |a dc | ||
| 100 | 1 | 0 | |a Zeinab Nikniaz |e author |
| 700 | 1 | 0 | |a Reza Mahdavi |e author |
| 700 | 1 | 0 | |a Seyed Jamal Ghaemmaghami |e author |
| 700 | 1 | 0 | |a Neda Lotfi Yaghin |e author |
| 700 | 1 | 0 | |a Leila Nikniaz |e author |
| 245 | 0 | 0 | |a Effect of different brewing times on antioxidant activity and polyphenol content of loosely packed and bagged black teas (Camellia sinensisL.) |
| 260 | |b Mashhad University of Medical Sciences, |c 2016-04-01T00:00:00Z. | ||
| 500 | |a 2228-7930 | ||
| 500 | |a 2228-7949 | ||
| 520 | |a Objective: Determination and comparison of the effect of infusion time on the antioxidant activity and total polyphenol contents of bagged and loosely packed black teas. Materials and Methods: For twenty loosely packed and eleven bagged tea samples, the antioxidant activity and total polyphenol content were analyzed using FRAP and Folin-Ciocalteau methods, respectively. The ANOVA with Tukey post-hoc test and independent t-test were used for statistical analysis. Results: The antioxidant activity and polyphenol content of various brands of tea samples were significantly different. There were significant differences in the antioxidant activity of loosely packed teas between 5, 15(p=0.03), 30(p=0.02) and 60(p=0.007) minutes of brewing times. Besides, there was a significant difference in antioxidant activity of bagged samples infused for 1 minute with four other infusion time points (p | ||
| 546 | |a EN | ||
| 690 | |a Antioxidant | ||
| 690 | |a polyphenol | ||
| 690 | |a Tea | ||
| 690 | |a Infusion time | ||
| 690 | |a Therapeutics. Pharmacology | ||
| 690 | |a RM1-950 | ||
| 655 | 7 | |a article |2 local | |
| 786 | 0 | |n Avicenna Journal of Phytomedicine, Vol 6, Iss 3, Pp 313-321 (2016) | |
| 787 | 0 | |n http://ajp.mums.ac.ir/article_5914_3d176e56b627d07159c6ae3201331d89.pdf | |
| 787 | 0 | |n https://doaj.org/toc/2228-7930 | |
| 787 | 0 | |n https://doaj.org/toc/2228-7949 | |
| 856 | 4 | 1 | |u https://doaj.org/article/e67efea053f942b5943f89a18fcdf1ff |z Connect to this object online. |