Journal
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
Volume 98, Issue 1, Pages 161-164Publisher
SPRINGER
DOI: 10.1007/s10973-009-0177-2
Keywords
DSC; Niacin; Niacinamide; TG/DTG; Vitamin PP
Funding
- FAPESP [2004/15101-8]
- CNPq
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Vitamin PP includes two vitamers, niacin and niacinamide which are essential for energy production. Vitamins are sensitive and losses can occur during shelf life and heating processes. Thermal analysis can provide information about thermal behavior of each vitamer relating them with time and/or temperature exposure. The vitamers thermal behavior were studied by TG/DTG and DSC under air and nitrogen atmosphere and the results showed that niacin is more stable than the niacinamide and the decomposition happens by volatilization at 238 A degrees C while niacinamide melts at 129 A degrees C and volatilize at 254 A degrees C when there is the total mass loss in the TG/DTG curves.
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