Dancong Tea's Effect on Blood Sugar
Author Information
Author(s): Wen Rourou, Chai Xianghua, Wang Pingping, Wu Kegang, Duan Xuejuan, Chen Jiasi, Zhang Tong, Zeng Liya
Primary Institution: Guangdong University of Technology
Hypothesis
The harvesting season of Dancong tea affects its ability to inhibit α-glucosidase.
Conclusion
Dancong tea harvested in spring and winter has a stronger inhibitory effect on α-glucosidase due to higher catechin content, particularly EGCG.
Supporting Evidence
- Dancong tea harvested in spring and winter showed higher catechin content.
- EGCG was the most abundant catechin in all four seasons.
- Fluorescence quenching experiments indicated strong binding of catechins to α-glucosidase.
- All catechin monomers exhibited dose-dependent inhibition of α-glucosidase.
- Winter tea had the highest total catechin content.
- EGCG and ECG showed the strongest inhibitory effects on α-glucosidase.
Takeaway
Drinking Dancong tea, especially from spring or winter, can help lower blood sugar levels because it stops an enzyme that raises blood sugar.
Methodology
The study used in vivo and in vitro experiments to assess the inhibitory effects of Dancong tea on α-glucosidase, analyzing catechin content and enzyme activity.
Limitations
The study primarily focused on four catechin monomers and did not explore other potential compounds in Dancong tea.
Participant Demographics
C57BL/6J male mice, 7 weeks old.
Statistical Information
P-Value
0.14 ± 0.01 mg/mL (IC50 for EGCG)
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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