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Zhou T, Li X. Chemically modified seaweed polysaccharides: Improved functional and biological properties and prospective in food applications. Compr Rev Food Sci Food Saf 2024; 23:e13396. [PMID: 38925601 DOI: 10.1111/1541-4337.13396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 05/14/2024] [Accepted: 06/04/2024] [Indexed: 06/28/2024]
Abstract
Seaweed polysaccharides are natural biomacromolecules with unique physicochemical properties (e.g., good gelling, emulsifying, and film-forming properties) and diverse biological activities (e.g., anticoagulant, antioxidant, immunoregulatory, and antitumor effects). Furthermore, they are nontoxic, biocompatible and biodegradable, and abundant in resources. Therefore, they have been widely utilized in food, cosmetics, and pharmaceutical industries. However, their properties and bioactivities sometimes are not satisfactory for some purposes. Modification of polysaccharides can impart the amphiphilicity and new functions to the biopolymers and change the structure and conformation, thus effectively improving their functional properties and biological activities so as to meet the requirement for targeted applications. This review outlined the modification methods of representative red algae polysaccharides (carrageenan and agar), brown algae polysaccharides (fucoidan, alginate, and laminaran), and green algae polysaccharides (ulvan) that have potential food applications, including etherification, esterification, degradation, sulfation, phosphorylation, selenylation, and so on. The improved functional properties and bioactivities of the modified seaweed polysaccharides and their potential food applications are also summarized.
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Affiliation(s)
- Tao Zhou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, P. R. China
| | - Xinyue Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, Zhejiang, P. R. China
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Sousa JM, Braz EMA, Bezerra RDS, Morais AIS, Vieira ACC, Costa MP, Rizzo MS, Chaves LL, Barreto HM, Osajima JA, Silva-Filho EC. Study of the antibacterial and cytotoxic activity of chitosan and its derivatives chemically modified with phthalic anhydride and ethylenediamine. Int J Biol Macromol 2024; 263:130292. [PMID: 38382775 DOI: 10.1016/j.ijbiomac.2024.130292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 02/23/2024]
Abstract
The insertion of hydrophobic and hydrophilic chains in the chitosan molecule can improve its antibacterial activity, expanding its range of application in several areas of medical-pharmaceutical sciences. Thus, this work aimed to increase the antibacterial activity of chitosan through the modification reaction with phthalic anhydride (QF) and subsequent reaction with ethylenediamine (QFE). The chitosan and derivatives obtained were characterized by elemental analysis, 13C Nuclear Magnetic Resonance (13C NMR), X-Ray Diffraction (XRD), Fourier Transform Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TG), where it was possible to prove the chemical modification. Both materials showed a greater antibacterial inhibitory effect against Gram-positive bacteria, Staphylococcus aureus, emphasizing antibacterial activity against Gram-negative bacteria, Escherichia coli, with values above 70 % of the inhibitory effect, which is a promising result. Assays with human fibroblast cells by the [3-(4,5-dimethylthiazolyl)-2,5-diphenyl tetrazolium (MTT)] bromide reduction test did not indicate toxicity in the materials. Thus, the derived materials showed promise for biomedical applications since they combined excellent antibacterial activity against gram-positive and gram-negative strains and did not show cytotoxicity.
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Affiliation(s)
- Janete M Sousa
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
| | - Elton M A Braz
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
| | - Roosevelt D S Bezerra
- Federal Institute of Education, Science and Technology of Piauí, Teresina-Central Campus, IFPI, Teresina 64000-040, PI, Brazil.
| | - Alan I S Morais
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
| | - Alexandre C C Vieira
- Quality Control Core of Medicines and Correlates NCQMC, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50670-901, PE, Brazil
| | - Marcilia P Costa
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
| | - Marcia S Rizzo
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
| | - Luíse L Chaves
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil; Quality Control Core of Medicines and Correlates NCQMC, Department of Pharmaceutical Sciences, Federal University of Pernambuco, Recife 50670-901, PE, Brazil
| | - Humberto M Barreto
- Microbiology Research Laboratory, Federal University of Piauí, Ministro Petrônio Portella University Campus, Teresina 64049-550, PI, Brazil
| | - Josy A Osajima
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
| | - Edson C Silva-Filho
- Interdisciplinary Laboratory for Advanced Materials-LIMAV, UFPI, 64.049-550 Teresina, PI, Brazil
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Carneiro J, Sotaminga FP, Caetano D, Ducatti DRB, Gonçalves AG, Noseda MD, Duarte MER. Semisynthesis and characterization of versatile azide intermediates using sodium alginate and its homopolymeric derivatives as starting material. Int J Biol Macromol 2024; 264:130567. [PMID: 38453120 DOI: 10.1016/j.ijbiomac.2024.130567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Revised: 02/22/2024] [Accepted: 02/29/2024] [Indexed: 03/09/2024]
Abstract
Alginate, a polyuronic biopolymer composed of mannuronic and guluronic acid units, contain hydroxyl and carboxyl groups as targeting modification sites to obtain structures with new and/or improved biological properties. The copper-catalyzed azide-alkyne cycloaddition (CuAAC) is a versatile click reaction for polymer functionalization, but it typically requires a "pre-click" modification to introduce azide or alkyne groups. Here, we described a straightforward chemical path to selectively modify alginate carboxyl groups producing versatile azido derivatives through N-acylation using 3-azydopropylamine. The resulting azide-functionalized polysaccharides underwent click chemistry to yield amino derivatives, confirmed by NMR and FTIR analyses. The 1H NMR spectrum reveals a characteristic triazole group signal at 8.15 ppm. The absence of the azide FTIR band for all amino derivatives, previously observed for the N-acylation products, indicated reaction success. Antibacterial and antioxidant assessments revealed that the initial polysaccharide lacks E. coli inhibition, while the click chemistry-derived amine products exhibit growth inhibition at 5.0 mg/mL. Lower molecular weight derivatives demonstrate superior DPPH scavenging ability, particularly amino-derivatives (24-33 % at 1.2 mg/mL). This innovative chemical pathway offers a promising strategy for developing polysaccharide structures with enhanced properties, demonstrating potential applications in various fields.
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Affiliation(s)
- Jaqueline Carneiro
- Programa de Pós-Graduação em Ciências-Bioquímica, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
| | - Francisco Paul Sotaminga
- Programa de Pós-Graduação em Engenharia de Bioprocessos e Biotecnologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
| | - Danielly Caetano
- Programa de Pós-Graduação em Engenharia de Bioprocessos e Biotecnologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil
| | - Diogo R B Ducatti
- Programa de Pós-Graduação em Ciências-Bioquímica, Universidade Federal do Paraná, Curitiba, Paraná, Brazil; Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
| | | | - Miguel D Noseda
- Programa de Pós-Graduação em Ciências-Bioquímica, Universidade Federal do Paraná, Curitiba, Paraná, Brazil; Programa de Pós-Graduação em Engenharia de Bioprocessos e Biotecnologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil; Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
| | - Maria Eugênia R Duarte
- Programa de Pós-Graduação em Ciências-Bioquímica, Universidade Federal do Paraná, Curitiba, Paraná, Brazil; Programa de Pós-Graduação em Engenharia de Bioprocessos e Biotecnologia, Universidade Federal do Paraná, Curitiba, Paraná, Brazil; Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Paraná, Curitiba, Paraná, Brazil.
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