Thermal Analytical Characteristics by TGA-DTA-DSC Analysis of <i>Carica papaya</i> Leaves from Kachchh

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 heatcool-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.

Characterization of Novel Solid Dispersions of Moringa oleifera Leaf Powder Using Thermo-Analytical Techniques

“…More so, Araújo et al [30] and Bello et al [51] observed similar behavior during the thermal assessment of Moringa oleifera seed powder. Another similar behavior was described by Ram et al [52] for Carica papaya leaves with 6.23% mass loss in the first stage and 28.00% and 17.46% in the second and third stages.…”

“…More so, Araújo et al [30] and Bello et al [51] observed similar behavior during the thermal assessment of Moringa oleifera seed powder. Another similar behavior was described by Ram et al [52] for Carica papaya leaves with 6.23% mass loss in the first stage and 28.00% and 17.46% in the second and third stages. Thermogravimetric curves of MOLP solid dispersions prepared through (A) freeze-drying method (FD4000 and FD6000), (B) melting method (M4000 and M6000), (C) solvent evaporation method (SE4000 and SE6000), and (D) microwave method (MWI4000 and MWI6000).…”

Ionic Modified TBD Supported on Magnetic Nanoparticles: A Highly Efficient and Recoverable Catalyst for Organic Transformations

“…As shown in Figure 4, the weight loss below 150 °C is due to the evaporation of physically adsorbed water as well as hydrate water molecules. 44 The weight loss about 12.5% at 252 °C−328 °C of Im-TBD@MNPs was assigned decomposition of TBD and ionic imidazolium moiety. As for the TBD@MNPs, the range between 243 and 362 °C leads to significant decrease in the weight loss of 5.8%.…”

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“…The Carica papaya aqueous extract revealed two peaks, endothermic peak around 79.7 °C and at 212.8 °C. This is associated with second-order phase transition such as glass transition 18 . Phospholipon 90H showed two sharp endothermic peaks at 125.2 °C and 182.5 °C, respectively.…”