Thermal Analytical Characteristics by TGA-DTA-DSC Analysis of Carica papaya Leaves from Kachchh

Article Preview

Abstract:

An experimental study on Carica papaya leaves was carried out in Thermo gravimetric analyzer (TGA), Differential Thermal Analyzer (DTA) and Differential Scanning Calorimetric (DSC) analyzer to investigate the effects of reaction atmosphere on thermal chemical characteristics. Experimental results show that In DSC curve, Endothermic peak at 101 °C is attributed to dehydration/Water loss from surface and pores of the powder sample. Step at 215 °C is associated with second order phase transition such as Glass Transition and it should be further confirmed in second heating (During heat- cool- heat cycle). Endothermic peak at 336 °C is associated protease thermal decomposition /Beta Cyclodextrin breakdown. In the TGA Curve, The initial 4 % weight loss is due to water loss from surface/pores of powder sample. Second weight loss between 200-450 °C is associated to degradation of cellulose and hemicellulose.

Info:

* - Corresponding Author

[1] Mutalik G. S., Background paper No. SEA/RPD/Tradmed/RSG Meet 1/2, WHO office, N. Delhi (1972).

Google Scholar

[2] Kirtikar K.R., Basu B.D., Indian Medicinal plants Vol. I and II, Lalit Mohan Basu and Co., Calcutta (1935).

Google Scholar

[3] Chopra R. N., Chopra I.C., Handa K. L., Kapoor L. D., Indigenous Drugs of India, U.N. Dhur and Sons, Culcutta (1958).

Google Scholar

[4] Nadkarni A. K., Indian Materia Medica Vol. I and II, Popular Book Depot, Bombay (1954).

Google Scholar

[5] Mello V.J., Gomes M.T., Lemos F.O., Delfino J.L., Andrade S.P., Lopes M.T., et al. The gastric ulcer protective and healing role of cysteine proteinases from Carica candamarcensis. Phytomedicine 15 (2008) 237-244.

DOI: 10.1016/j.phymed.2007.06.004

Google Scholar

[6] Noriko Otsuki, Nam H. Dang, Emi Kumagai, Akira Kondo, Satoshi Iwata, Chikao Morimoto, Aqueous extract of Carica papaya leaves exhibits anti-tumor activity and immunomodulatory effects. J Ethnopharmacology 127 (2010) 760-767

DOI: 10.1016/j.jep.2009.11.024

Google Scholar

[7] Fakeye T.O., Abu T., Adebisi O., A survey of the use of herbs among patients attending secondary health care facilities in Southwestern Nigeria. J Herbal Pharmacotherapy 2007 (In press).

DOI: 10.1080/15228940802152901

Google Scholar

[8] Oyelola O., Evaluation of the hypoglycemic activity of Treculia Africana Decne (root) in normal and diabetic rats. M. Pharm (Clinical Pharmacy) Dissertation University of Ibadan Nigeria, 2005.

Google Scholar

[9] Suhas J. Vyas, Taslim T. Khatri, Vijay R. Ram, Pragnesh N. Dave, Hitendra S. Joshi, Biochemical constituents in leaf of Carica papaya – ethnomedicinal plant of Kachchh region. International Letters of Natural Sciences 7 (2014) 16-20.

DOI: 10.56431/p-6816o9

Google Scholar

[10] Pravin N. Ram, Vijay R. Ram, Taslimahemad T. Khatri, Suhas J. Vyas, Pragnesh N. Dave, XRF analysis of Carica papaya leaves of semi arid region of Kachchh. International Letters of Natural Sciences 19 (2014) 15-24. ( Received 05 September 2014; accepted 17 September 2014 )

DOI: 10.56431/p-58b77g

Google Scholar