FTIR Profiling of Herbal Teas prepared from Medicinal Plants

Author: Yasodha T., Vijayalakshmi M.S. and Pooja V.

Download PDF

Abstract

Polyphenols are the important contributors of health protection and preventing various diseases including type 2 diabetes (T2D). Hence an investigation was made to determine the polyphenols of selected Indian medicinal herbs of Ocimum (T2) Gymnema (T3) ; Senna auriculata and cinnamon bark extracts (T4) and Senna auriculata and ginger extracts (T5) by Fourier Transform Infrared (FTIR) spectroscopy. The results were compared with the leaves of Cameilla sinensis (T1-Green tea). Infra red absorption spectra of T4 revealed new peaks in the regions 4623 cm-1 and 4337.91 cm-1 were related directly to the presence of more functional groups such as polyphenols. This showed active constituents in herbal polyphenols of the T4 with mixed formulation of Senna auriculata and Cinnamum zeylanicum. In all infusions the IR spectral peak values are absent between region 2220-2250 cm-1. This indicates the absence of cyanide groups. From this it was confirmed that due to the absence of toxic substances in the selected medicinal plants are suitable for consumption. Hence the leaves of Ocimum sanctum and Gymnema sylvestre, flowers of Senna auriculata, bark of Cinnamum zeylanicum (cinnamon) and rhizome of Zingiber officinale (ginger) are recommended for herbal tea formulations

Keywords

Herbal tea, FTIR study, Functional groups, Polyphenols

Conclusion

FTIR measurements were made for accuracy and direct identification of functional groups in the selected medicinal herbs. It is evident from the results of FTIR indicated that herbal tea in T4 (Senna auriculata and Cinnamum zeylanicum) T5 (Senna auriculata and Zingiber officinale) formulation also contained higher amount of total phenols than green tea and more peaks in the spectrum next to T4. Whereas T2 (Ocimum sanctum) and T3 (Gymnema sylvestre) were recorded similar peaks in the FTIR spectrum corresponding to T1 (green tea). In summary all the selected medicinal plants are suitable for consumption and recommended for herbal tea formulations

References

-

How to cite this article

Yasodha T., Vijayalakshmi M.S. and Pooja V. (2024). FTIR Profiling of Herbal Teas prepared from Medicinal Plants. Biological Forum – An International Journal, 16(4): 08-11