Cited by 39Advanced Cellulose Research StudiesPolysaccharides and Plant Cell WallsLignin and Wood Chemistry

The DOI matches its Crossref record; 66 of the 66 references it cites were found in a registry or an index.

EFFECTS OF ACID HYDROLYSIS ON THE EXTRACTION OF CELLULOSE NANOCRYSTALS (CNCs): A REVIEW

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Department of Chemistry, University of Zululand, KwaDlangezwa campus, Kwa-Zulu Natal Province, South Africa, MOHOMANE, SAMSON M., MOTLOUNG, SETUMO V., Department of Chemical and Physical Sciences, Private Bag X1, Mthatha Campus, UNITRA 5117, South Africa, KOAO, LEHLOHONOLO F., Department of Physics, University of the Free State (QwaQwa Campus), Private Bag X13, Phuthaditjhaba 9866, South Africa, MOTAUNG, TSHWAFO E., Department of Chemistry, Sefako Makgatho Health Science University, P.O. Box 94, Medunsa, 0204, South Africa·2022·Cellulose Chemistry and Technology

Abstract

"The potential utilization of cellulose nanocrystals (CNCs) as reinforcing materials has lately attracted significant research attention. This is mainly due to their versatility and suitability for various applications in fields such as food packaging, cosmetics, biomaterials and pharmaceuticals. Several methods have been reported in the literature for isolating CNCs from plant sources, including acid hydrolysis, mechanical treatment and enzymatic hydrolysis, resulting in CNCs with different dimensions, crystallinities and thermal stabilities. However, acid hydrolysis using sulphuric acid (H2SO4) remains the favourite, as it requires shorter time and produces a stable suspension, with high crystallinity, compared to other methods. Sulphuric acid hydrolysis is generally performed with 64% acid concentration, with varying acid to fibre ratios, at temperatures around 45-50 °C, for 30-75 min duration under vigorous stirring. It typically produces needle-like structures, with the diameter and length in the range of 4–25 nm and 100–300 nm, respectively. This review analyses the results reported in the literature regarding the influence of hydrolysis parameters on the extraction of CNCs from various cellulosic materials. The study examines various hydrolysis parameters, specifically extraction time, temperature and acid concentration, to isolate CNCs with controlled morphology, crystallinity and thermal stability."

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Crossref · 10.35812/cellulosechemtechnol.2022.56.61

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  1. 43 F. Yeganeh, R. Behrooz and M. Rahimi, Int. J. Nano Dimens., 8, 206 (2017)
  2. 52 A. S. C. Zaki, N. A. Yusoff, N. M. Rohaizad, K. S. A. Sohaimi, A. R. Mohamed et al., J. Adv. Res. Eng. Knowledge, 5, 27 (2008)
  3. 57 N. Maaloul, R. B. Arfi, M. Rendueles, A. Ghorbal and M. Diaz, J. Mater. Environ. Sci., 8, 4171 (2017)

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Metadata

Authors
Department of Chemistry, U. O. Z., MOHOMANE, S. M., MOTLOUNG, S. V., Department of Chemical and Physical Sciences, P. B. X., KOAO, L. F., Department of Physics, U. O. T. F. S. (. C., MOTAUNG, T. E., & Department of Chemistry, S. M. H. S. U.
Affiliations
  • University of Zululand (ZA)
  • University of South Africa (ZA)
Venue
Cellulose Chemistry and Technology
Published
2022-09-28
Volume
56
Issue
7-8
Pages
691-703
ISSN
  • 0576-9787 (ISSN-L)
  • 2457-9459
OpenAlex
W4303444962
Cited by
39
References
66
Citations by year
2026: 13 · 2025: 19 · 2024: 6 · 2023: 1
FWCI
1.63
Type
journal article
Language
en
Open access
Locations
Cellulose Chemistry and Technology (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Advanced Cellulose Research Studies
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Polysaccharides and Plant Cell Walls
  • Physical Sciences › Chemical Engineering › Process Chemistry and Technology › Lignin and Wood Chemistry
Keywords
cellulose nanocrystals, acid hydrolysis, sulfuric acid hydrolysis, acid concentration, extraction temperature, extraction time, crystallinity, thermal stability, morphology control, cellulosic materials, reinforcement materials

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