ISSN 2756-3391
African Journal of Parasitology Research ISSN: 2343-6549 Vol. 3 (1), pp. 166-172, January, 2016. © International Scholars Journals
Full Length Research Paper
FT-IR study of green tea leaves and their diseases of Arunachal Pradesh, North East, India
S. Sivakumar1*, Chandra Prasad Khatiwada2, J.Sivasubramanian2, Poken Jini3, N.Prabu3, A.Venkateson2, P. Soundararajan2
1Assistant Professor, Department of Physics, Annamalai University, Annamalai Nagar-608002, Chidambaram, Tamil Nadu, India.
2Ph.D. Research Scholar, Department of Physics, Annamalai University, Annamalai Nagar-608002, Chidambaram, Tamil. Nadu, India.
3M.Sc. Second year, Department of Physics, Annamalai University, Annamalai Nagar-608002, Chidambaram, Tamil Nadu, India.
*Corresponding Author. E-mail: [email protected]; [email protected]
Accepted 12 June 2013
Abstract
The fundamental aspect of green tea, its classification of disease and economic values has been briefly discussed. There are several diseases of green tea leaves, which is an experience by farmer of Arunachal Pradesh due to their climatic and topographic factors. With the help of FTIR study, the effects of diseases on the qualities of Tea were studied. The FTIR analysis explores the vibration of functional groups present in macromolecules and shows the molecular structural changes through shifts in wave number. The decreased in wave number of protein at amide A observed in group II demonstrates the disorder of hydrogen bonding and pectin and lignin in infected groups. This change may reflect the overall changes in structure and synthesis of protein, pectin and lignin in tea during diseases. Control group may have prevented the changes of protein in tea by increasing the frequency through reducing the structural modification. The decreased protein content in tea was identified by the decreased in band area values of amide I and amide II bands. Amide I consists of functional vibrations of many secondary structures and it indicates that the amide I band, pectin and lignin frequency shifted to lower values in diseases infected tea groups.
Key words: Tea, green tea, diseases in tea leaves, FTIR, Arunachal Pradesh.