Green Synthesis of Selenium Nanoparticles using Green Coffee Beans: An Optimization Study.
Chem Biodivers
; 21(3): e202301250, 2024 Mar.
Article
em En
| MEDLINE
| ID: mdl-38359016
ABSTRACT
In this study, ultrasonication extraction of some bioactive compounds from green coffee beans was optimized with the response surface method using Box-Behnken experimental design. The best condition was selected as 90.90â
W ultrasonic power, 33.63â
min sonication time and 30 % solid concentration. The responses obtained under optimum conditions had TPC, DPPH and CUPRAC values identified as 6603.33±2025.94â
ppm GAE, 9638.31±372.17â
ppm TE and 98.83â
mmol, respectively. Microwave-assisted selenium nanoparticle production was carried out using the extract obtained under optimized conditions. The produced selenium nanoparticles showed absorbance between 350-400â
nm. The surface morphology and size of the nanoparticles were determined by transmission electron microscopy (TEM) and spherical nanoparticles of about 100â
nm were produced. Functional groups affecting the reduction were determined by FTIR analysis. In addition, the produced selenium nanoparticles had amorphous (non-uniform) structure and could maintain their stability at high temperatures.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Selênio
/
Coffea
/
Nanopartículas
Idioma:
En
Revista:
Chem Biodivers
Assunto da revista:
BIOQUIMICA
/
QUIMICA
Ano de publicação:
2024
Tipo de documento:
Article