- Tytuł:
- Optimization of acid assisted extraction process of foxtail millet polysaccharides and its antioxidant activity
- Autorzy:
-
Shi, Y.
Zhu, A.
Shen, L. - Powiązania:
- https://bibliotekanauki.pl/articles/2082902.pdf
- Data publikacji:
- 2020
- Wydawca:
- Polska Akademia Nauk. Instytut Agrofizyki PAN
- Tematy:
-
foxtail millet
polysaccharides
acid extraction
response surface methodology
antioxidant activity - Opis:
- Experiments concerning hydrochloric acid assisted extraction of polysaccharides from foxtail millet were carried out. Various combinations of extraction conditions of hydrochloric acid concentration, liquid-solid ratio, extraction time and extraction temperature were investigated using the Response Surface Methodology at three levels and four variables of Box-Behnken designs to obtain the maximum yield of polysaccharides. The experimental data were fitted to a quadratic equation using multiple regression analysis and analysed. The antioxidant activity of the obtained polysaccharides was also investigated in vitro. The optimal conditions were an acid concentration of 2.4 mol L-1, a liquid- solid ratio of 19.3:1 mL g-1, an extraction time of 1.2 h, and an extraction temperature 80.6°C. Under these conditions, the experimental yield was 52.13 mg g-1, which was in close agreement with the value of 52.37 mg g-1 predicted by the model. The mathematical model had a high correlation with experimental data (p<0.05). The polysaccharides of foxtail millet display a high radical scavenging capacity against superoxide and hydroxyl radicals.
- Źródło:
-
International Agrophysics; 2020, 34, 2; 141-149
0236-8722 - Pojawia się w:
- International Agrophysics
- Dostawca treści:
- Biblioteka Nauki
Artykuł