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Synthesis and Characterization of Chitosan Particles Loaded with Antioxidants Extracted from Chia (Salvia hispanica L.) Seeds
- Source :
- International Journal of Analytical Chemistry, Vol 2021 (2021)
- Publication Year :
- 2021
- Publisher :
- Hindawi, 2021.
-
Abstract
- Chia (Salvia hispanica L.) seeds contain antioxidants with great benefits for health and are widely used in the food industry. Antioxidants can be degraded by environmental factors, decreasing their biological activity. Their encapsulation in chitosan (CH) particles represents an alternative to protect them and increases their application. The encapsulation efficiency (%EE) of the antioxidants in the CH particles depends on the synthesis conditions. In this study, two methods for encapsulation of chia extract in chitosan particles were evaluated: method A, 0.05% CH in 1% acetic acid was mixed with 0.07% of tripolyphosphate (TPP) and method B, 0.3% CH in 2% acetic acid was mixed with 1% TPP. The results showed that the %EE decreased with the concentration of the extract, and the FTIR analysis suggested that the compounds of the extract were adsorbed on the surface of the particles. Dynamic light scattering and zeta potential analysis showed that the particles of method A are unstable and with a tendency to agglomerate, and the particles of method B are stable. The highest %EE was obtained with 0.2 mg·mL−1 (method A) and 1.0 mg·mL−1 (method B) of the extract. The higher loading capacity (%LC) (16–72%) was exhibited by the particles of method A. The best particle yield (62–69%) was observed for method B. The particles with the extract adsorbed showed antioxidant activity (5–60%) at 25°C; however, in the particles with the extract encapsulated, the activity increased after subjecting to acidic conditions at 40°C due to the breakdown of the particles. The results obtained will allow choosing the appropriate conditions for the synthesis of chitosan particles loaded with chia extracts with specific characteristics (%EE, %LC, size, and type) according to their future applications. The particles could be used in food and pharmaceutical industries and even in edible films for food packaging.
- Subjects :
- QD71-142
Antioxidant
Article Subject
medicine.medical_treatment
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
0104 chemical sciences
Analytical Chemistry
Food packaging
Chitosan
Acetic acid
chemistry.chemical_compound
Adsorption
chemistry
Dynamic light scattering
Yield (chemistry)
medicine
Particle
0210 nano-technology
Nuclear chemistry
Subjects
Details
- Language :
- English
- ISSN :
- 16878760
- Database :
- OpenAIRE
- Journal :
- International Journal of Analytical Chemistry
- Accession number :
- edsair.doi.dedup.....4136a8df8d8743f530619d0408f444c2
- Full Text :
- https://doi.org/10.1155/2021/5540543