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Thermoplastic starch nanocomposites using cellulose-rich Chrysopogon zizanioides nanofibers

Abstract

Green thermoplastic starch (TPS) nanocomposite films aided by cellulose nanofibers (CNFs) from Chrysopogon zizanioides roots were developed and characterized. When compared to other lignocellulosic fibers, Chrysopogon zizanioides roots revealed exceptionally high cellulose content (~48%). CNFs were separated using an environmentally friendly acid isolation technique that included three stages: (i) alkali treatment; (ii) bleaching; and (iii) mild acid hydrolysis using oxalic acid in an autoclave. Following that, green nanocomposite films were made from potato starch using the solution casting process, by which we used glycerol (30 wt%) to make thermoplastic starch. Then, cellulose nanofibers in different concentrations (0, 1, 2, 3, 4 wt%) were added to the thermoplastic starch matrix. The isolated CNFs had diameters in the range of 17–27 nm. Besides, these nanostructures presented a very high crystallinity index (~65%), thereby enhanced the thermal stability. TPS/CNF green nanocomposites containing 3 wt% CNFs had exceptional tensile strength (~161%), tensile modulus (~167%), thermal stability, and crystallinity. As a result, nanocomposite films made of starch and cellulose nanofibers (3 wt%) extracted from Chrysopogon zizanioides roots would be alternatives for sustainable packaging. It can be concluded that Chrysopogon zizanioides roots have high potential for polymer industry.

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Authors (13)

  • Photo of  Midhun Dominic C.D.

    Midhun Dominic C.D.

    • Department of Chemistry, Sacred Heart College (Autonomous), Kochi, Kerala Pin-682013, India
  • Photo of  Derval dos Santos Rosa

    Derval dos Santos Rosa

    • Universidade Federal do ABC, Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS), CEP 09090-400 Santo André, SP, Brazil
  • Photo of  Paulo Henrique Camani

    Paulo Henrique Camani

    • Universidade Federal do ABC, Centro de Engenharia, Modelagem e Ciências Sociais Aplicadas (CECS), CEP 09090-400 Santo André, SP, Brazil
  • Photo of  Athira S Kumar

    Athira S Kumar

    • Department of Chemistry, Sacred Heart College (Autonomous), Kochi, Kerala Pin-682013, India
  • Photo of  Neenu K.v.

    Neenu K.v.

    • Department of Applied Chemistry, Cochin University of Science and Technology (CUSAT), Kerala Pin-682022, India
  • Photo of  P.M. Sabura Begum

    P.M. Sabura Begum

    • Department of Applied Chemistry, Cochin University of Science and Technology (CUSAT), Kerala Pin-682022, India
  • Photo of  Divya Dinakaran

    Divya Dinakaran

    • Department of Chemistry, Sacred Heart College (Autonomous), Kochi, Kerala Pin-682013, India
  • Photo of  Effina John

    Effina John

    • Department of Chemistry, St. Albert's College (Autonomous), Kochi, Kerala Pin-682018, India
  • Photo of  Donna Baby

    Donna Baby

    • Department of Chemistry, St. Peter's College, Kolenchery, Kerala Pin-682311, India
  • Photo of  Meenu Mariya Thomas

    Meenu Mariya Thomas

    • Department of Chemistry, Morning Star Home Science College, Angamaly, Kerala Pin-683585, India
  • Photo of  Jaison M. Joy

    Jaison M. Joy

    • Department of Chemistry, Sacred Heart College (Autonomous), Kochi, Kerala Pin-682013, India
  • Photo of  Jyotishkumar Parameswaranpillai

    Jyotishkumar Parameswaranpillai

    • School of Biosciences, Mar Athanasios College for Advanced Studies Tiruvalla (MACFAST), Pathanamthitta, Kerala Pin-689101, India

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Details

Category:
Articles
Type:
artykuły w czasopismach
Published in:
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES no. 191, pages 572 - 583,
ISSN: 0141-8130
Language:
English
Publication year:
2021
Bibliographic description:
Dominic C.d. M., dos Santos Rosa D., Camani P. H., Kumar A. S., K.v. N., Begum P. S., Dinakaran D., John E., Baby D., Thomas M. M., Joy J. M., Parameswaranpillai J., Saeb M.: Thermoplastic starch nanocomposites using cellulose-rich Chrysopogon zizanioides nanofibers// INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES -Vol. 191, (2021), s.572-583
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.ijbiomac.2021.09.103
Verified by:
Gdańsk University of Technology

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