Antimicrobial Activity of Lignin and Lignin-Derived Cellulose and Chitosan Composites Against Selected Pathogenic and Spoilage Microorganisms.
作者： Alzagameem , Klein , Bergs , Do , Korte
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摘要: The antiradical and antimicrobial activity of lignin lignin-based films are both great interest for applications such as food packaging additives. polyphenolic structure in addition to the presence O-containing functional groups is potentially responsible these activities. This study used DPPH assays discuss HPMC/lignin HPMC/lignin/chitosan films. scavenging (SA) binary (HPMC/lignin) ternary (HPMC/lignin/chitosan) systems was affected by percentage added lignin: 5% showed highest 30% had lowest. Both dependent on biomass source showing following trend: organosolv softwood > kraft grass. Testing activities lignins lignin-containing high against Gram-positive Gram-negative bacteria at 35 °C low temperatures (0–7 °C). Purification has a negative effect while storage positive effect. release produced positively chitosan enhances even more bacteria. spoilage that grow revealed HPMC/L1 film B. thermosphacta P. fluorescens L5 active only thermosphacta. In films, exhibited fluorescens.
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