Cited by 52Advanced Cellulose Research StudiesLignin and Wood ChemistryNanocomposite Films for Food Packaging

Innovating Generation of Nanocellulose from Industrial Hemp by Dual Asymmetric Centrifugation

Agate, Sachin, Tyagi, Preeti, Naithani, Ved, Lucia, Lucian, Pal, Lokendra·2020·ACS Sustainable Chemistry & Engineering

Abstract

Among nanobiomaterials, cellulose nanofibrils (CNF) possessing intrinsically appealing fiber dimensions on the nanometer scale and biocompatibility feature arguably the greatest potential for a variety of practical applications such as packaging, hygiene, food, and healthcare products. Herein, a new class of nanofibers are introduced from a very green feedstock using an isolated mechanical processing technique, enabling on-site and on-demand production with a significantly reduced risk of environmental and toxicological concerns during the product life cycle. Serendipitously, we have shown that autohydrolyzed hemp hurds, the short fiber piths of the hemp plant, show a surprising and unparalleled tendency to generate nanocellulose. Hemp hurd fibers were pulverized using a high intensity dual asymmetric centrifugation (DAC) force to defibrillate unbleached hemp cellulosic fibers into lignin-containing cellulose micro and nanofibers (L-CMNF). The impact of biomass composition, chemical processing, and mechanical pretreatment as well as DAC pulverization time and solids content on the fibrillation, crystallinity, charge, and colloidal stability of L-CMNF were studied. The formation of L-CMNF caused reduced crystallinity from 50% → 29% while charge distribution increased from 4.5 → 13 (× 10 –5 μ eq Vol./L of p-DADMAC) with higher pulverization time at lower solids in the presence of lignin. Finally, SEM and TEM images substantiated the formation of L-CMNF. Thus, we offer a powerful new approach to CNF generation by pulverizing autohydrolyzed hemp hurds for very short times in an isolated DAC system.

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Crossref · 10.1021/acssuschemeng.9b05992

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Research works printed but not linked: 3

  1. 10.15376/biores.7.1.0422-0436 · DOI
  2. 10.15376/biores.12.1.2143-2233 · DOI
  3. Edyta M., 2015, Annals of Warsaw University of Life Sciences - SGGW Forestry and Wood Technology, 91, 134

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Authors
Agate, S., Tyagi, P., Naithani, V., Lucia, L., & Pal, L.
Affiliations
North Carolina State University (US)
Corresponding author
Pal, Lokendra
Venue
ACS Sustainable Chemistry & Engineering
Published
2020-01-07
Volume
8
Issue
4
Pages
1850-1858
ISSN
2168-0485 (ISSN-L)
OpenAlex
W2998963064
Cited by
51
References
63
Citations by year
2026: 5 · 2025: 6 · 2024: 6 · 2023: 11 · 2022: 7 · 2021: 12 · 2020: 3
FWCI
2.15
Type
journal article
Language
en
Open access
closed
Locations
ACS Sustainable Chemistry & Engineering (publishedVersion)
Topics
  • Physical Sciences › Materials Science › Biomaterials › Advanced Cellulose Research Studies
  • Physical Sciences › Engineering › Biomedical Engineering › Lignin and Wood Chemistry
  • Physical Sciences › Materials Science › Biomaterials › Nanocomposite Films for Food Packaging
Keywords
nanocellulose, cellulose nanofibers, industrial hemp, hemp hurd, mechanical fibrillation, autohydrolysis, cellulose crystallinity, surface charge, colloidal stability, nanobiomaterials, lignocellulosic biomass

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