Resumo (PT):
Abstract (EN):
Chlorogenic acids, the main polyphenolic group
present in coffee, which include the caffeoylquinic acids,
are recognized as antioxidants with growing interest in
pharmacological, cosmetic, and food applications.
However, they can be easily oxidized and they are also
very unstable when exposed to high temperatures.
Therefore, they can suffer transesterification reactions
during storage or food processing, limiting their applications. Nevertheless, this situation can be overcome or
minimized by microencapsulation. The purpose of the
present study was to prepare by a spray-drying process
sodium alginate and modified chitosan microparticles
with chlorogenic acid (3-CQA), characterize them (morphological analysis), and evaluate the release profile of 3-
CQA from the microparticles in in vitro studies.
Furthermore, their antioxidant activity and moisture content were determined. The results address the success of
chlorogenic acid microencapsulation, resulting in stable
microparticles with controlled release properties and good
antioxidant activity, suggesting increasing applications in
food and pharmaceutical industry.
Idioma:
Inglês
Tipo (Avaliação Docente):
Científica
Nº de páginas:
10