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Vol. 34 No. 12 (2022): Vol 34 Issue 12, 2022

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Chemical Profiling of Crush, Tear, Curl (CTC) Tea Waste of Eastern Sub-Himalayan Regions: An Elemental and Spectroscopic Analysis

https://doi.org/10.14233/ajchem.2022.24053
Satyajit Sarkar
Department of Tea Science, University of North Bengal, Raja Rammohunpur, Siliguri-734013, India ; Taxonomy of Angiosperms & Biosystematics Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Siliguri734013, India
Soumik Bardhan
Physical Chemistry Section, Department of Chemistry, Jadavpur University, 188, Raja S.C. Mallick Road, Kolkata-700032, India ; Department of Biotechnology and B.J.M. School of Biosciences, Indian Institute of Technology Madras, Chennai-600036, India
Arindam Gangopadhyay
Department of Chemistry, Rampurhat College, Rampurhat, Birbhum-731224, India
Shankha Banerjee
Department of Biotechnology and B.J.M. School of Biosciences, Indian Institute of Technology Madras, Chennai-600036, India
Sanjib Senapati
Department of Biotechnology and B.J.M. School of Biosciences, Indian Institute of Technology Madras, Chennai-600036, India
Saurabh Chakraborti
Office of the Principal, Bidhannagar College, EB-2, Sector-I, Salt Lake, Kolkata-700064, India
Sumit Saha
Department of Chemistry, National Institute of Technology Sikkim, Ravangla-737139, India
Mahipal Singh
Project Director & Director (Research) Additional Charge, Tea Board India, 14, B.T.M. Sarani (Brabourne Road), Kolkata-700001, India
Monoranjan Chowdhury
Taxonomy of Angiosperms & Biosystematics Laboratory, Department of Botany, University of North Bengal, Raja Rammohunpur, Siliguri734013, India

Corresponding Author(s) : Monoranjan Chowdhury

mchowdhury@nbu.ac.in

Asian Journal of Chemistry, Vol. 34 No. 12 (2022): Vol 34 Issue 12, 2022

Abstract

Tea is not only the most popular beverage in the world but also producing a large quantity untreated wastes product every year. In particular, the tea gardens of eastern Sub-Himalayan region cumulatively produce 15 million kg of crush, tear, curl (CTC)-factory tea waste (FTW) every year, which primarily includes discarded tea leaves, leaf fibers, buds and tender stems of tea plants. Beside that ~ 80% population of Indian subcontinent consume CTC tea regularly at their homes, tea stalls, market, cafe etc. and the waste produced from it, is called CTC domestic tea waste (DTW). Thus, not only factory tea waste but also a large quantity of domestic CTC tea waste (DTW) is exposed into the environment regularly. In present study, an attempt has been made for primary screening of the compounds in both the CTC-tea wastes. It has been shown that FTW sample contains greater amount of non-metal elements such as sulfur, calcium, phosphorus and metal elements like potassium and iron compared to DTW sample. Abundance of aromatic compounds has been seen to be higher in FTWs whereas, DTW primarily contains aliphatic compounds. Using Orbitrap-HRLCMS analysis allowed to make accurate predictions about the molecular structures of the likely organic chemicals found in tea trash. Thus, various bioactive organic compounds, micronutrients and trace elements from tea waste were found.

Keywords

Tea waste CTC-FTW CTC-DTW Chemical profiling
Sarkar, S., Bardhan, S., Gangopadhyay, A., Banerjee, S., Senapati, S., Chakraborti, S., … Chowdhury, M. (2022). Chemical Profiling of Crush, Tear, Curl (CTC) Tea Waste of Eastern Sub-Himalayan Regions: An Elemental and Spectroscopic Analysis. Asian Journal of Chemistry, 34(12), 3391–3398. https://doi.org/10.14233/ajchem.2022.24053
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