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Isolation and characterization of nanocrystalline cellulose from roselle-derived microcrystalline cellulose
Universiti Putra Malaysia, Malaysia.
Universiti Putra Malaysia, Malaysia.
Universiti Putra Malaysia, Malaysia.
RISE - Research Institutes of Sweden (2017-2019). (MoRe Research Ornskoldsvik AB)
2018 (Engelska)Ingår i: International Journal of Biological Macromolecules, ISSN 0141-8130, E-ISSN 1879-0003, Vol. 114, s. 54-63Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Roselle fiber is a renewable and sustainable agricultural waste enriched with cellulose polysaccharides. The isolation of Nanocrystalline cellulose (NCC) from roselle-derived microcrystalline cellulose (MCC) is an alternative approach to recover the agricultural roselle plant residue. In the present study, acid hydrolysis with different reaction time was carried out to degrade the roselle-derived MCC to form NCC. The characterizations of isolated NCC were conducted through Fourier Transform Infrared Ray (FTIR), Transmission Electron Microscopy (TEM), Field Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), Dynamic Light Scattering (DLS), Energy Dispersive Spectroscopy (EDS), X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). As evaluated from the performed morphological investigations, the needle-like shape NCC nanostructures were observed under TEM and AFM microscopy studies, while irregular rod-like shape of NCC was observed under FESEM analysis. With 60 min hydrolysis time, XRD analysis demonstrated the highest NCC crystallinity degree with 79.5%. In thermal analysis by TGA and DSC, the shorter hydrolysis time tended to produce NCC with higher thermal stability. Thus, the isolated NCC from roselle-derived MCC has high potential to be used in application of pharmaceutical and biomedical fields for nanocomposite fabrication. 

Ort, förlag, år, upplaga, sidor
Elsevier B.V. , 2018. Vol. 114, s. 54-63
Nyckelord [en]
Crystallinity, Morphology, Nanocrystalline cellulose, Roselle, Thermal stability, cellulose, microcrystalline cellulose, unclassified drug, nanoparticle, acid hydrolysis, Article, atomic force microscopy, chemical analysis, chemical procedures, chemical structure, controlled study, crystallization, degradation, differential scanning calorimetry, energy dispersive X ray spectroscopy, field emission scanning electron microscopy, Hibiscus sabdariffa, infrared spectroscopy, isolation procedure, nanofabrication, photon correlation spectroscopy, plant residue, reaction time, thermogravimetry, thermostability, transmission electron microscopy, X ray diffraction, chemistry, Hibiscus, Nanoparticles
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-42466DOI: 10.1016/j.ijbiomac.2018.03.065Scopus ID: 2-s2.0-85044111698OAI: oai:DiVA.org:ri-42466DiVA, id: diva2:1384097
Anmärkning

Funding details: Universiti Putra Malaysia, GP-IPS/2018/9626200, 6369108; Funding text 1: The author would like to acknowledge University Putra Malaysia ( GP-IPS/2018/9626200 ) for financial support. The authors are also grateful to KPT for HICoE (Grant No: 6369108 ).

Tillgänglig från: 2020-01-09 Skapad: 2020-01-09 Senast uppdaterad: 2020-04-29Bibliografiskt granskad

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