Estimation of Caffeine in Tea Samples of Southern Region of India
DOI:
https://doi.org/10.12970/2308-8044.2018.06.01Keywords:
Caffeine, Green tea, Tea dust, Estimation of caffeine.Abstract
Caffeine is a bitter, white crystalline purine derivative that closely related to adenine and guanine. Caffeine is used to reduce physical fatigue and to prevent or treat drowsiness. It produces increased wakefulness and focus, improves thought-processing, and better general body coordination. The amount of caffeine needed to produce these effects varies from person to person, depending on body size and degree of tolerance. Hence, it is of importance to estimate the quantity of caffeine present in various types of tea and coffee products. Accordingly, a simple and efficient approach has been done on a variety of tea samples from various places in the southern region of India to understand the quantity of caffeine with respect to the region of cultivation. Among the samples from Nilgiris/ Valparai/ Kodaikanal of Tamilnadu, Munnar of Kerala, and Coorg of Karnataka, the Garden green tea from Coorg (Sample 8) is the best in terms of caffeine quantity (2.37%).
References
Wikimedia. Caffeine [Internet]. New York: Wikimedia Foundations Inc.; 2001 [updated 2017 May 30, cited 2017 May 31]. Available from: https://en.wikipedia.org/wiki/Caffeine
Nehlig A, Daval JL, Debry G. Caffeine and the central nervous system: mechanisms of action, biochemical, metabolic and psychostimulant effects. Brain Res Rev 1992; 17(2): 139-70. https://doi.org/10.1016/0165-0173(92)90012-B
Bennett AW, Bonnie KB. The world of caffeine: The science and culture of the world’s most popular drug. Abingdon: Roultledge 2001.
Subashri A, Vishnu Priya, DR. Awareness of consuming caffeine in pregnant women. Int J Pharm Bio Sci 2017; 8(1): b74-8. http://dx.doi.org/10.22376/ijpbs.2017.8.1.b74-78
Niel B, Elizabeth M, Gizem K, Allen C, Joseph MW, Maria L, et al. Post-study caffeine administration enhances memory consolidation in humans. Nature Neuroscience 2014; 17(2): 201-3. https://doi.org/10.1038/nn.3623
Christoper Bergland. Psychology Today [Internet]. HealthProfs.com: New York; 2013 [updated 2013 Jan 22, cited 2017 May 31]. Available from: https://www.psychologytoday.com/blog/the-athletesway/201301/cortisol-why-the-stress-hormone-is-publicenemy-no-1
Sherman SM, Buckley TP, Baena E, Ryan L. Caffeine enhances memory performance in young adults during their non-optimal time of day. Front Psychol 2016; 7(1764): 1-9. https://doi.org/10.3389/fpsyg.2016.01764
Wardle MC, Treadway MT, de Wit H. Caffeine increases psychomotor performance on the effort expenditure for rewards task. Pharmacol Biochem Behav 2012; 102(4): 526- 31. https://doi.org/10.1016/j.pbb.2012.06.016
Pérez-Burillo S, Giménez R, Rufián-Henares JA, Pastoriza S. Effect of brewing time and temperature on antioxidant capacity and phenols of white tea: Relationship with sensory properties. Food Chem 2018; 248: 111-118. https://doi.org/10.1016/j.foodchem.2017.12.056 Castro ACCM, Oda FB, Almeida-Cincotto MGJ, Isaac VLB, Santos AG. Green coffee seed residue: a sustainable source of antioxidant compounds. Food Chem 2018; 246: 48-57. https://doi.org/10.1016/j.foodchem.2017.10.153 Cole M, Hopker JG, Wiles JD, Coleman DA. The effects of acute carbohydrate and caffeine feeding strategies on cycling efficiency, 2018. J Sports Sciences 2018; 36(7): 817- 823. https://doi.org/10.1080/02640414.2017.1343956
Dhaka NP, Kumar K. Laboratory skills-Chemistry. New Delhi: Pradeep Publications 2006.