dc.contributor.advisor | | |
dc.contributor.author | Haqiqi, Muhammad T. | |
dc.contributor.author | Bankeeree, Wichanee | |
dc.contributor.author | Lotrakul, Pongtharin | |
dc.contributor.author | Pattananuwat, Prasit | |
dc.contributor.author | Punnapayak, Hunsa | |
dc.contributor.author | Ramadhan, Rico | |
dc.contributor.author | Kobayashi, Takaomi | |
dc.contributor.author | Amirta, Rudianto | |
dc.contributor.author | Prasongsuk, Sehanat | |
dc.date.accessioned | 2022-03-11T07:55:56Z | |
dc.date.available | 2022-03-11T07:55:56Z | |
dc.date.issued | 2021-03-29 | |
dc.identifier.citation | Haqiqi, M. T., Bankeeree, W., Lotrakul, P., Pattananuwat, P., Punnapayak, H., Ramadhan, R., ... & Prasongsuk, S. (2021). Antioxidant and UV-Blocking Properties of a Carboxymethyl Cellulose–Lignin Composite Film Produced from Oil Palm Empty Fruit Bunch. ACS omega, 6(14), 9653-9666. | en_US |
dc.identifier.issn | 2470-1343 | |
dc.identifier.uri | http://repository.unmul.ac.id/handle/123456789/23159 | |
dc.description.abstract | Oil palm empty fruit bunch (EFB) pulp with the highest cellulose content of 83.42% was obtained from an optimized process of acid pretreatment (0.5% v/v H2SO4), alkaline extraction (15% w/w NaOH), and hydrogen peroxide bleaching (10% w/v H2O2), respectively. The EFB cellulose was carboxymethylated, and the obtained carboxymethyl cellulose (CMC) was readily water-soluble (81.32%). The EFB CMC was blended with glycerol and cast into a composite film. Lignin that precipitated from the EFB black liquor was also incorporated into the film at different concentrations, and its effect on the UV-blocking properties of the film was determined. Interestingly, the EFB CMC film without lignin addition completely blocked UV-B transmittance. The incorporation of lignin at all concentrations significantly enhanced the UV-A blocking and other physical properties of the film, including the surface roughness, thickness, and thermal stability, although the tensile strength and water vapor permeability were not significantly affected. Complete UV-A and UV-B blocking were observed when lignin was added at 0.2% (w/v), and the film also exhibited the highest antioxidant activity against 2,2-diphenyl-1-picrylhydrazyl (DPPH) free radicals with an half-maximal inhibitory concentration (IC50) value of 3.87 mg mL–1. | en_US |
dc.language.iso | en | en_US |
dc.publisher | American Chemical Society | en_US |
dc.relation.ispartofseries | 6;14 | |
dc.subject | Pretreatment,Coating materials,Cellulose,Biopolymers,Organic polymers | en_US |
dc.title | Antioxidant and UV-Blocking properties of a Carboxymethyl Cellulose-Lignin Composite Film Produced from Oil Palm Empty Fruit Bunch | en_US |
dc.type | Article | en_US |