Facile fabrication of chitosan Schiff bases from giant tiger prawn shells (Penaeus monodon) via solvent-free mechanochemical grafting.

Autor: Fatika FAW; Faculty of Agricultural Technology, Brawijaya University, Malang, Indonesia., Anwar M; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Prasetyo DJ; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Rizal WA; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Suryani R; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Yuliyanto P; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Hariyadi S; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Suwanto A; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Bahmid NA; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Wahono SK; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Sriherfyna FH; Faculty of Agricultural Technology, Brawijaya University, Malang, Indonesia., Poeloengasih CD; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia., Purwono B; Department of Chemistry, Universitas Gadjah Mada, Yogyakarta, Indonesia., Agustian E; Research Center for Chemistry, National Research and Innovation Agency, Jakarta, Indonesia., Maryana R; Research Center for Chemistry, National Research and Innovation Agency, Jakarta, Indonesia., Hernawan H; Research Center for Food Technology and Processing, National Research and Innovation Agency, Yogyakarta, Indonesia. Electronic address: hern003@brin.go.id.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2023 Aug 30; Vol. 247, pp. 125759. Date of Electronic Publication: 2023 Jul 08.
DOI: 10.1016/j.ijbiomac.2023.125759
Abstrakt: Fabrication of chitosan Schiff bases (ChSB) from giant tiger prawn shells (Penaeus monodon) using an environmentally friendly method has been conducted successfully. Transformation of Prawn Shells (PS) as raw material into chitin then chitosan was executed under ambient temperature. Later, three Ch Schiff bases (ChSB-A, ChSB-S, and ChSB-V) were successfully synthesized for the first time via solvent-free mechanochemical grafting with 2-hydroxy benzaldehyde, 4-methoxy benzaldehyde, and 3-methoxy-4-hydroxy benzaldehyde, respectively. Synthesis was carried out with Shaker Mill-Ultimate Gravity equipped with a Teflon jar with zirconia balls; then the product was characterized. FTIR analysis proved the conversion of free amine to imine groups. The degree of substitution (DS) and crystallinity index (CrI) were determined by elemental analysis and X-ray diffraction. The DS values obtained were about 0.343, 0.795, and 0.055 for ChSB-A, ChSB-S, and ChSB-V, respectively. The CrI of ChSB-A, ChSB-S, and ChSB-V was 53.3, 51.7, and 46.9 %, respectively. The thermal gravimetric analysis showed that the mechanochemical grafting of Ch improves the thermal stability of ChSB. This developed method provides a novel potential technique to convert PS into ChSB products by solvent-free mechanochemical grafting.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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