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| Purification and characterization of xylitol monolaurate |
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| KeyWord:xylitol monolaurate isolation and purification structure identification surface property antimicrobial property |
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| Abstract: |
| Xylitol monolaurate was synthesized from xylitol and lauric acid with immobilized lipase as catalyst. The products were isolated and purified by silica gel column chromatography and solvent extraction respectively. The purity of the target product was determined by HPLC,and the structure was identified by NMR.The surface property and antimicrobial property of the purified xylitol monolaurate were characterized. The results showed that the purities of xylitol monolaurate obtained by silica gel column chromatography and solvent extraction both were above 95%, the target product was 1-O-xylitol monolaurate, and its HLB value was 9.87, belonging to the O/W emulsifier.The minimum inhibitory concentrations of xylitol monolaurate against Escherichia coli and Staphylococcus aureus were 1.0 mg/mL and 0.25 mg/mL respectively. |
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