当前位置： SCI文献检索 > INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES期刊下所有文献 > Lignin from oil palm empty fruit bunches: Characterization, biological activities and application in green synthesis of silver nanoparticles.

Lignin from oil palm empty fruit bunches: Characterization, biological activities and application in green synthesis of silver nanoparticles.

Abstract：

:Lignin was extracted from oil palm empty fruit bunches under four different conditions. The lignin samples were characterized and employed in the green synthesis of silver nanoparticles. Two-dimensional HSQC NMR analysis showed that lignins extracted under more aggressive conditions (3.5% acid, 60 min) exhibited less signals and thus, presented a more degraded chemical structure. Additionally, those lignins obtained under harsh conditions (3.5% acid, 60 min) exhibited higher antioxidant capacity than those obtained under mild conditions (1.5% acid, 20 min). Formation of lignin-mediated silver nanoparticles was confirmed by color change during their synthesis. The surface plasmon resonance peaks (423-427 nm) in UV-visible spectra also confirmed the synthesis of AgNPs. AgNPs showed spherical shape, polycrystalline nature and average size between 18 and 20 nm. AgNPs, in suspension, presented a negative Zeta potential profile. Lignin was assumed to contribute in the antioxidant capacity exhibited by AgNPs. All AgNPs presented no significant differences on the disk diffusion antimicrobial susceptibility test against E. coli. The minimum inhibitory concentration of HAL3-L AgNPs (62.5 μg·mL-1) was better than other physicochemically produced AgNPs (100 μg·mL-1).

journal_name

Int J Biol Macromol

journal_title

International journal of biological macromolecules

authors

Zevallos Torres LA,Woiciechowski AL,Oliveira de Andrade Tanobe V,Zandoná Filho A,Alves de Freitas R,Noseda MD,Saito Szameitat E,Faulds C,Coutinho P,Bertrand E,Soccol CR

doi

10.1016/j.ijbiomac.2020.11.104

subject

Has Abstract

pub_date

2021-01-15 00:00:00

pages

1499-1507

eissn

0141-8130

issn

1879-0003

pii

S0141-8130(20)35032-7

journal_volume

167

pub_type

杂志文章

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