Utilisation of agricultural residues for antioxidant exopolysaccharide production by Bacillus spp.
Nat Prod Res
; : 1-4, 2024 Sep 02.
Article
em En
| MEDLINE
| ID: mdl-39222476
ABSTRACT
This study tested the antioxidant activities of exopolysaccharides (EPSs) produced by eight Bacillus spp. from Thai milk kefir utilising four agricultural by-products in Thailand; copra meal, mangosteen peel, sorghum, and para rubber sawdust as carbon sources. Sorghum showed the highest starch and sugar content of 73.33% while copra meal showed the lowest (13.08%). B. tequilensis PS21 produced the highest dry weight EPS, followed by B. amyloliquefaciens KW1 and B. tequilensis PS22 from four substrates. B. tequilensis PS21 generated the most EPS with sorghum (0.75 ± 0.09 g DW/100 mL culture), followed by mangosteen peel (0.61 ± 0.07 g). EPS from B. amyloliquefaciens KW1 using copra meal displayed the highest DPPH radical scavenging activity of 33.39 ± 1.34% and EPS from the same bacteria using sorghum displayed the highest hydroxyl radical scavenging activity of 49.78 ± 0.86%. This approach demonstrated a bio-circular green economy paradigm in converting agricultural biowastes into valuable EPS biomaterials with potential applications.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Nat Prod Res
/
Nat. prod. res. (Online)
/
Natural product research (Online)
Ano de publicação:
2024
Tipo de documento:
Article
País de afiliação:
Tailândia
País de publicação:
Reino Unido