The present study sheds light on the physical and chemical characteristics of microcrystalline cellulose (MCC) isolated from oil palm fronds (OPF) pulps. It was found that the OPF MCC was identified as cellulose II polymorph, with higher crystallinity index than OPF α-cellulose (CrI: 71%>CrI: 47%). This indicates that the acid hydrolysis allows the production of cellulose that is highly crystalline. BET surface area of OPF MCC was found to be higher than OPF α-cellulose (S: 5.64mg>S:Q 2.04mg), which corroborates their potential as an adsorbent. In batch adsorption studies, it was observed that the experimental data fit well with Langmuir adsorption isotherm in comparison to Freundlich isotherm. The monolayer adsorption capacity (Q) of OPF MCC was found to be around 51.811mgg and the experimental data fitted well to pseudo-second-order kinetic model.
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http://dx.doi.org/10.1016/j.ijbiomac.2016.06.094 | DOI Listing |
J Cancer Res Ther
April 2023
Department of ECE, Kumaraguru College of Technology, Coimbatore, Tamil Nadu, India.
Context: Breast cancer is one of the fatal diseases among women. Every year, its incidence and mortality rate increase globally. Mammography and sonography are widely used in breast cancer detection.
View Article and Find Full Text PDFInt J Biol Macromol
February 2017
School of Industrial Technology, Universiti Sains Malaysia, 11800, Penang, Malaysia.
In the present study, microcrystalline cellulose (MCC) was isolated from oil palm fronds (OPF) using chemo-mechanical process. Wherein, alkaline hydrogen peroxide (AHP) was utilized to extract OPF fibre at different AHP concentrations. The OPF pulp fibre was then bleached with acidified sodium chlorite solution followed by the acid hydrolysis using hydrochloric acid.
View Article and Find Full Text PDFInt J Biol Macromol
November 2016
School of Industrial Technology, Universiti Sains Malaysia, 11800 Minden, Penang, Malaysia.
The present study sheds light on the physical and chemical characteristics of microcrystalline cellulose (MCC) isolated from oil palm fronds (OPF) pulps. It was found that the OPF MCC was identified as cellulose II polymorph, with higher crystallinity index than OPF α-cellulose (CrI: 71%>CrI: 47%). This indicates that the acid hydrolysis allows the production of cellulose that is highly crystalline.
View Article and Find Full Text PDFN Engl J Med
June 2010
Infectious Disease Epidemiology Group, School of Public Health (B.J.C., V.J.F., L.L.H.L., H.C.S., R.O.P.F., G.M.L.), and the Department of Microbiology (K.H.C., E.S.K.M., J.S.M.P.), Li Ka Shing Faculty of Medicine, University of Hong Kong; Hospital Authority, Government of the Hong Kong Special Administrative Region (A.S.K.K., C.-W.C., W.W.S.T., H.-Y.N., D.W.S.C.); St. Paul's Hospital (P.W.Y.L.); St. Teresa's Hospital (M.-C.C.); and HKU-Pasteur Research Centre (J.S.M.P.) - all in Hong Kong.
Background: There are few data on the comparative epidemiology and virology of the pandemic 2009 influenza A (H1N1) virus and cocirculating seasonal influenza A viruses in community settings.
Methods: We recruited 348 index patients with acute respiratory illness from 14 outpatient clinics in Hong Kong in July and August 2009. We then prospectively followed household members of 99 patients who tested positive for influenza A virus on rapid diagnostic testing.
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