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Cited by 346

The DOI matches its Crossref record; 73 of the 73 references it cites were found in a registry or an index.

Isolation and characterisation of microcrystalline cellulose and cellulose nanocrystals from coffee husk and comparative study with rice husk

Open access
Collazo-Bigliardi, Sofía, Ortega-Toro, Rodrigo, Chiralt Boix, Amparo·2018·Carbohydrate Polymers

Abstract

Cellulosic material from coffee husk has not been previously studied despite being a potential source of reinforcing agents for different applications. This material has been extracted and characterised from coffee husk, in parallel with previously studied rice husk. Samples have been analysed as to their ability to obtain cellulosic fibres and cellulose nanocrystals (CNC) by applying alkali and bleaching treatments and final sulphuric acid hydrolysis. Microstructural changes were analysed after treatments, and the size and aspect ratio of CNCs were determined. Crystallinity and thermal stability of both materials progressed in line with the enrichment in cellulosic compounds. The CNC aspect ratio was higher than 10, which confers good reinforcing properties. These were tested in thermoplastic starch films, whose elastic modulus increased by 186 and 121% when 1 wt% of CNCs from rice and coffee husks, respectively, was incorporated into the matrix. Coffee husk represents an interesting source of cellulosic reinforcing materials.

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Metadata

Authors
Collazo-Bigliardi, S., Ortega-Toro, R., & Chiralt Boix, A.
Venue
Carbohydrate Polymers
Publisher
Elsevier BV
Published
2018-07
Volume
191
Pages
205-215
ISSN
0144-8617 (ISSN-L)
OpenAlex
W2791062993
Cited by
346
References
73
FWCI
7.62
Type
journal article
Language
en
Open access
green

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Collazo-Bigliardi, S., Ortega-Toro, R., & Chiralt Boix, A. (2018). Isolation and characterisation of microcrystalline cellulose and cellulose nanocrystals from coffee husk and comparative study with rice husk. Carbohydrate Polymers. https://doi.org/10.1016/j.carbpol.2018.03.022

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