Stability evaluation of tocopheryl acetate and ascorbyl tetraisopalmitate in isolation and incorporated in cosmetic formulations using thermal analysis
In view of the increase in the number of cosmetic preparations containing antioxidant vitamins, chiefly, due to their action in preventing the process of skin aging, there is a need to develop pre-formulation studies and to validate analytical methods in order to obtain high quality products. Thus, the objective of this research was to evaluate and compare the thermal behavior of tocopheryl acetate and ascorbyl tetraisopalmitate as raw materials, and incorporated into a base cream. Thermogravimetry (TG / DTG) and differential scanning calorimetry (DSC) were used for this purpose. Both vitamins were found to be stable up to 250ºC. The base cream (placebo) and the sample (base cream containing the vitamins) presented different weight loss. Thermal analysis has shown itself to be an excellent tool for the characterization of these vitamins and can be used in routine analysis for quality control of this type of cosmetic formulation.
Main Authors: | Almeida,Mariana Mandelli de, Lima,Cibele Rosana Ribeiro de Castro, Quenca-Guillen,Joyce Santos, Moscardini Filho,Elder, Mercuri,Lucildes Pita, Santoro,Maria Inês Rocha Miritello, Kedor-Hackmann,Erika Rosa Maria |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Universidade de São Paulo, Faculdade de Ciências Farmacêuticas
2010
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000100015 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Characterization and identification of ascorbyl methylsilanol pectinate for cosmetic formulations application
by: Guillen,Joyce Santos Quenca, et al.
Published: (2021) -
Dietary a-tocopheryl acetate on fillet quality of tilapia.
by: FOGAÇA, F. H. dos S., et al.
Published: (2010-02-24) -
Ascorbyl palmitate and tocopherol acetate as metabolic antioxidants in dourado larvae
by: Okamura, Daniel, et al.
Published: (2008) -
Stability and sensory assessment of emulsions containing propolis extract and/or tocopheryl acetate
by: Gonçalves,Gisele Mara Silva, et al.
Published: (2011) -
Use of anise seed and/or α-tocopheryl acetate in laying Japanese quail diets
by: Christaki,E.V, et al.
Published: (2011)