Properties and characteristics of nanocrystalline cellulose isolated from olive fiber

Kian LK 1 , Saba N 1 , Jawaid M 2 , Alothman OY 3 , Fouad H 4

Affiliations 

  • 1 Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia
  • 2 Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia, 43400, UPM Serdang, Selangor, Malaysia; Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia. Electronic address: jawaid@upm.edu.my
  • 3 Department of Chemical Engineering, College of Engineering, King Saud University, Riyadh, Saudi Arabia
  • 4 Department of Applied Medical Science, CC, King Saud University, P.O. Box 10219, 11433, Riyadh, Saudi Arabia; Department of Biomedical Engineering, Faculty of Engineering, Helwan University, P.O. Box 11792, Helwan, Egypt
Carbohydr Polym, 2020 Aug 01;241:116423.
PMID: 32507177 DOI: 10.1016/j.carbpol.2020.116423

Abstract

Olive fiber is a sustainable material as well as alternative biomass for extraction of nanocrystalline cellulose (NCC), which has been widely applied in various industries. In the present study, ONC-I, ONC-II, and ONC-III were extracted from olive stem fiber at different hydrolysis reaction times of 30 min, 45 min, and 60 min, respectively. The nanoparticle size was found gradually reducing from ONC-I (11.35 nm width, 168.28 nm length) to ONC-III (6.92 nm width, 124.16 nm length) due to the disintegration of cellulose fibrils. ONC-II and ONC-III possessed highly pure cellulose compartments and enhanced crystals structure. This study also showed that rigidity increased from ONC-I to ONC-II. ONC-III showed the highest crystallinity of 83.1 %, endowing it as a potentially reliable load-bearing agent. Moreover, ONC-III exhibited highest stable heat resistance among the chemically-isolated nanocellulose. We concluded that olive NCC could be promising materials for a variety of industrial applications in various fields.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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