Controle de qualidade da vitamina C em produtos acabados

Vitamin C is vulnerable to oxidative degradation and then the aim of this study was conducting a literature review about quality control of vitamin C in finished products. The conclusion is determined multiple emulsions and products which contain encapsulant materials are able to protect it from oxidation ensuring its efficacy.

Validation of an alternative analitycal method for the quantification of antioxidant activity in plant extracts

SUMMARY. A new method was developed to evaluate the total antioxidant activity in plant extracts, which was based on radical scavenging using 2,2’-azinobis-(3-ethylbenzothiazoline)-6-sulfonic acid. The proposed method was linear in the range of 0.86 to 26.0 μg/mL, displaying a correlation coefficient of 0.999. Moreover, the accuracy and precision analysis showed agreement with ANVISA guidelines (96.66 to 98.46 % and < 5.0%, respectively). The method demonstrated sensitivity, robustness and efficiency in detecting low concentrations of plant extracts (detection and quantification limit of 0.86 and 2.87 μg/mL, respectively) that may be present in pharmaceuticals and cosmetics preparations, again in agreement with ANVISA. In addition, the assay is inexpensive and easy to perform.

Análise da influência do agente umectante na estabilidade reológica e avaliação de cristais líquidos em formulações cosméticas

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Estudo fitoquímico dos extratos de folhas, galhos e cascas do caule de Calycophyllum spruceanum Benth para testes de potencial de cosmético funcional

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Redes de inovação: mapeamento de inventores de patentes em uma empresa do setor de cosméticos

This article aims to identify patterns in the organization of innovation network by mapping the network inventors of a cosmetics company and identifying ways to promote innovation capacity through interconnectivity. The research was conducted through case study methods, and, for this, inventors mappings were made, based on the records of patents previously surveyed, taking into consideration the linkage (internal or external) of each inventor with the company and also the amount of patent citations. It was identified higher hierarchy in networks with the presence of collaborators externals to the company as well as a possible higher technological content, since the amount of citations was higher compared to other networks. It is verified, finally, that inventors mappings (although a patent is not the only measuring factor of innovation) can identify key features to help a better management of innovation.

Síntese e caracterização de monômeros azo-carbonatos para a preparação de poli(azo-carbonato)s e poli)azo-uretana)s

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Desenvolvimento de sensor baseado em polímeros molecularmente impressos para determinação de álcoois superiores em óleo fúsel

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)