This study aimed to produce double layer-wound dressing. The first layer was bacterial cellulose produced from coconut juice and 10 % glucose and 1 % yeast extract. The second layer was polylactic acid electrospun nanofibers-loaded rice extracted. The result showed that the bacterial cellulose produced by 10 % glucose and 1 % yeast extract give the highest tensile stress and Young’s modulus comparing to bacterial celluloseproduced from coconut juice. 2 % w/v NaOH can purified the obtained bacterial cellulose. The % yield of LeumPhum, riceberry and rice bran extracts by using methanol, iso-propanol ethyl acetate and hexane as a solvents was determined. The result revealed that the % yield rice extract by using methanol as solvent was higher when compared with other solvents. Morever, the scavenging ability of LeumPhum rice extract was the highest measured by using DPPH radical scavenging activity and ABTS+ radical-scavenging assay. The extracted sample of three types of rice were further analyzed to determine the phenolic compounds by using GC-MS analysis. The major components of LeumPhum rice extract were phenolic acids which are vanillic acid, protocatechuic acid, gallic acid, ferulic acid, coumaric acid, syringic acid, and protocatechuic acid methyl ester whereas the major components of riceberry rice and rice ban extract were vanillic acid, protocatechuic acid, gallic acid, ferulic acid, coumaric acid, and syringic acid. Lastly, E. adenophorum essential oil showed antivactrial activities against S. epidermidis and B.Cereus, respectively.

Development of double layer-wound dressing of biopolymer containing rice extract and essential oil for biomedical applications

253rd National Meeting (2017)

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