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Chen N, Hu M, Jiang T, Xiao P, Duan JA. Insights into the molecular mechanisms, structure-activity relationships and application prospects of polysaccharides by regulating Nrf2-mediated antioxidant response. Carbohydr Polym 2024; 333:122003. [PMID: 38494201 DOI: 10.1016/j.carbpol.2024.122003] [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: 12/11/2023] [Revised: 02/24/2024] [Accepted: 02/26/2024] [Indexed: 03/19/2024]
Abstract
The occurrence and development of many diseases are closely related to oxidative stress. In this context, accumulating evidence suggests that Nrf2, as the master switch of cellular antioxidant signaling, plays a central role in controlling the expression of antioxidant genes. The core molecular mechanism of polysaccharides treatment of oxidative stress-induced diseases is to activate Keap1/Nrf2/ARE signaling pathway, promote nuclear translocation of Nrf2, and up-regulate the expression of antioxidant enzymes. However, recent studies have shown that other signaling pathways in which polysaccharides exert antioxidant effects, such as PI3K/Akt/GSK3β, JNK/Nrf2 and NF-κB, have complex crosstalk with Keap1/Nrf2/ARE, may have direct effects on the nuclear translocation of Nrf2. This suggests a new strategy for designing polysaccharides as modulators of Nrf2-dependent pathways to target the antioxidant response. Therefore, in this work, we investigate the crosstalk between Keap1/Nrf2/ARE and other antioxidant signaling pathways of polysaccharides by regulating Nrf2-mediated antioxidant response. For the first time, the structural-activity relationship of polysaccharides, including molecular weight, monosaccharide composition, and glycosidic linkage, is systematically elucidated using principal component analysis and cluster analysis. This review also summarizes the application of antioxidant polysaccharides in food, animal production, cosmetics and biomaterials. The paper has significant reference value for screening antioxidant polysaccharides targeting Nrf2.
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Affiliation(s)
- Nuo Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Meifen Hu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Tingyue Jiang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, PR China
| | - Ping Xiao
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, PR China.
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing 210023, PR China.
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Martins PHS, Barros MA, Silva CL, Ricci P, Castilho LMB, Santos ALR, Rodrigues HS, Assunção RMN, Faria AM. A cellulose monolithic stir bar for sorptive extraction of glycerol from biodiesel. RSC Adv 2024; 14:17380-17388. [PMID: 38813123 PMCID: PMC11134343 DOI: 10.1039/d4ra02985b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 05/24/2024] [Indexed: 05/31/2024] Open
Abstract
This work presents an eco-friendly approach for determining free glycerol in biodiesel samples, using a cellulose monolith stir bar in the sorptive extraction method with analysis by high-performance liquid chromatography and a refractive index detector. The cellulose monolith was produced from cellulose acetate by non-solvent-induced phase separation and subsequent alkaline deacetylation. The cellulose monolith presented a hierarchically porous structure, with 68% porosity and almost total deacetylation, with morphological and polarity characteristics that favor an efficient extraction of free glycerol from biodiesel. The sorptive extraction method using a cellulose monolith stir bar was optimized, obtaining a total extraction time of 30 min at 70 °C, using ultrapure water as the desorption solvent, and extraction of free glycerol of 93.6 ± 2.3%. The proposed method showed selectivity in free glycerol extraction, with limits of detection and quantification of 6.60 × 10-5% w/w and 2.18 × 10-4% w/w, respectively. Compared with the official reference method, the proposed one presented similar precision and accuracy, with few manipulations and any reagent/solvents. Furthermore, it is compatible with the principles of green chemistry and can be considered an eco-friendly method for determining free glycerol in biodiesel.
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Affiliation(s)
- Pablo H S Martins
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
| | - Maria A Barros
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
| | - Caroline L Silva
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
| | - Poliana Ricci
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
| | - Laís M B Castilho
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
| | - Allyson L R Santos
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
| | - Hugo S Rodrigues
- Instituto de Ciências Exatas e Naturais do Pontal, Universidade Federal de Uberlândia 38304-402 Ituiutaba MG Brazil
| | - Rosana M N Assunção
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
- Instituto de Ciências Exatas e Naturais do Pontal, Universidade Federal de Uberlândia 38304-402 Ituiutaba MG Brazil
| | - Anizio M Faria
- Instituto de Química, Universidade Federal de Uberlândia 38304-402 Uberlândia MG Brazil
- Instituto de Ciências Exatas e Naturais do Pontal, Universidade Federal de Uberlândia 38304-402 Ituiutaba MG Brazil
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Deakin K, Savage G, Jones JS, Porter A, Muñoz-Pérez JP, Santillo D, Lewis C. Sea surface microplastics in the Galapagos: Grab samples reveal high concentrations of particles <200 μm in size. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 923:171428. [PMID: 38438045 DOI: 10.1016/j.scitotenv.2024.171428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2023] [Revised: 02/29/2024] [Accepted: 02/29/2024] [Indexed: 03/06/2024]
Abstract
Plastic pollution in the oceans is increasing, yet most global sea surface data is collected using plankton nets which limits our knowledge of the smaller and more bioaccessible size fraction of microplastics (<5 mm). We sampled the biodiverse coastal waters of the Galapagos Island of San Cristobal, comparing two different microplastic sampling methodologies; 1 l whole seawater grab samples filtered to 1.2 μm and sea surface plankton tows with a net mesh size of 200 μm. Our data reveal high concentrations of microplastics in Galapagos coastal waters surrounding the urban area, averaging 11.5 ± 1.48 particles l-1, with a four-order of magnitude increase in microplastic abundance observed using grab sampling compared with 200 μm plankton nets. This increase was greater when including anthropogenic cellulose particles, averaging 19.8 ± 1.86 particles l-1. Microplastic and anthropogenic cellulose particles smaller than 200 μm comprised 44 % of the particles from grab samples, suggesting previous estimates of microplastic pollution based on plankton nets likely miss and therefore underestimate these smaller particles. The particle characteristics and distribution of these smaller particles points strongly to a local input of cellulosic fibres in addition to the microplastic particles transported longer distances via the Humbolt current found across the surface seawater of the Galapagos. Improving our understanding of particle characteristics and distributions to highlight likely local sources will facilitate the development of local mitigation and management plans to reduce the input and impacts of microplastics to marine species, not just in the Galapagos but globally.
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Affiliation(s)
- Katie Deakin
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Georgie Savage
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Jen S Jones
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, UK; Galapagos Conservation Trust, 7-14 Great Dover Street, London SE1 4YR, UK
| | - Adam Porter
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, UK
| | - Juan Pablo Muñoz-Pérez
- Colegio de Ciencias Biológicas y Ambientales (COCIBA), Universidad San Francisco de Quito USFQ, Quito, Ecuador; School of Science, Technology and Engineering, University of the Sunshine Coast UniSC, Hervey Bay, QLD, Australia
| | - David Santillo
- Greenpeace Research Laboratories, School of Biosciences, Innovation Centre Phase 2, University of Exeter, Exeter EX4 4RN, UK
| | - Ceri Lewis
- Biosciences, Faculty of Health and Life Sciences, University of Exeter, Exeter EX4 4QD, UK.
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Wani NR, Dar AH, Dash KK, Pandey VK, Srivastava S, Jan SY, Deka P, Sabahi N. Recent advances in the production of bionanomaterials for development of sustainable food packaging: A comprehensive review. ENVIRONMENTAL RESEARCH 2023; 237:116948. [PMID: 37611789 DOI: 10.1016/j.envres.2023.116948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2022] [Revised: 07/08/2023] [Accepted: 08/20/2023] [Indexed: 08/25/2023]
Abstract
Polymers originating from natural macromolecule based polymeric materials have gained popularity due to the demand for green resources to develop unique, eco-friendly, and high-quality biopolymers. The objective of this review is to address the utilization of bionanomaterials to improve food quality, safety, security, and shelf life. Bionanomaterials are synthesized by integrating biological molecules with synthetic materials at the nanoscale. Nanostructured materials derived from biopolymers such as cellulose, chitin, or collagen can be employed for the development of sustainable food packaging. Green materials are cost-effective, biocompatible, biodegradable, and renewable. The interaction of nanoparticles with biological macromolecules must be analyzed to determine the properties of the packaging film. The nanoparticles control the growth of bacteria that cause food spoiling by releasing distinctive chemicals. Bio-nanocomposites and nanoencapsulation systems have been used in antimicrobial bio-based packaging solutions to improve the efficiency of synergism. Nanomaterials can regulate gas and moisture permeability, screen UV radiation, and limit microbial contamination, keeping the freshness and flavor of the food. Food packaging based on nanoparticles embedded biopolymers can alleviate environmental concerns by lowering the amount of packaging materials required and enhancing packaging recyclability. This results in less waste and a more eco-sustainable approach to food packaging. The study on current advances in the production of bionanomaterials for development of sustainable food packaging involves a detailed investigation of the available data from existing literature, as well as the compilation and analysis of relevant research results using statistical approaches.
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Affiliation(s)
- Nazrana Rafique Wani
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu & Kashmir, 190025, India
| | - Aamir Hussain Dar
- Department of Food Technology, Islamic University of Science and Technology, Kashmir, 192122, India.
| | - Kshirod Kumar Dash
- Department of Food Processing Technology, Ghani Khan Choudhury Institute of Engineering and Technology (GKCIET), Malda, West Bengal, 732141, India.
| | - Vinay Kumar Pandey
- Division of Research & Innovation (DRI), School of Applied & Life Sciences, Uttaranchal University, Dehradun, Uttarakhand, India
| | - Shivangi Srivastava
- Department of Bioengineering, Integral University, Lucknow, Uttar Pradesh, India
| | - Suhaib Yousuf Jan
- Division of Food Science and Technology, Sher-e-Kashmir University of Agricultural Sciences and Technology, Srinagar, Jammu & Kashmir, 190025, India
| | - Pinky Deka
- Department of Applied Biology, University of Science & Technology Meghalaya, Techno City, 793200, India
| | - Najmeh Sabahi
- Department of Food Science and Technology, Tabriz University, Tabriz, Iran
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Zhao Q, Jiang Y, Zhao Q, Patrick Manzi H, Su L, Liu D, Huang X, Long D, Tang Z, Zhang Y. The benefits of edible mushroom polysaccharides for health and their influence on gut microbiota: a review. Front Nutr 2023; 10:1213010. [PMID: 37485384 PMCID: PMC10358859 DOI: 10.3389/fnut.2023.1213010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Accepted: 06/20/2023] [Indexed: 07/25/2023] Open
Abstract
The gut microbiome is a complex biological community that deeply affects various aspects of human health, including dietary intake, disease progression, drug metabolism, and immune system regulation. Edible mushroom polysaccharides (EMPs) are bioactive fibers derived from mushrooms that possess a range of beneficial properties, including anti-tumor, antioxidant, antiviral, hypoglycemic, and immunomodulatory effects. Studies have demonstrated that EMPs are resistant to human digestive enzymes and serve as a crucial source of energy for the gut microbiome, promoting the growth of beneficial bacteria. EMPs also positively impact human health by modulating the composition of the gut microbiome. This review discusses the extraction and purification processes of EMPs, their potential to improve health conditions by regulating the composition of the gut microbiome, and their application prospects. Furthermore, this paper provides valuable guidance and recommendations for future studies on EMPs consumption in disease management.
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Affiliation(s)
- Qilong Zhao
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Yu Jiang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Qian Zhao
- School of Public Health, Lanzhou University, Lanzhou, China
| | | | - Li Su
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Diru Liu
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Xiaodan Huang
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Danfeng Long
- School of Public Health, Lanzhou University, Lanzhou, China
| | - Zhenchuang Tang
- Institute of Food and Nutrition Development, Ministry of Agriculture and Rural Affairs, Beijing, China
| | - Ying Zhang
- School of Public Health, Lanzhou University, Lanzhou, China
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Anžlovar A, Žagar E. Cellulose Structures as a Support or Template for Inorganic Nanostructures and Their Assemblies. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1837. [PMID: 35683693 PMCID: PMC9182054 DOI: 10.3390/nano12111837] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/17/2022]
Abstract
Cellulose is the most abundant natural polymer and deserves the special attention of the scientific community because it represents a sustainable source of carbon and plays an important role as a sustainable energent for replacing crude oil, coal, and natural gas in the future. Intense research and studies over the past few decades on cellulose structures have mainly focused on cellulose as a biomass for exploitation as an alternative energent or as a reinforcing material in polymer matrices. However, studies on cellulose structures have revealed more diverse potential applications by exploiting the functionalities of cellulose such as biomedical materials, biomimetic optical materials, bio-inspired mechanically adaptive materials, selective nanostructured membranes, and as a growth template for inorganic nanostructures. This article comprehensively reviews the potential of cellulose structures as a support, biotemplate, and growing vector in the formation of various complex hybrid hierarchical inorganic nanostructures with a wide scope of applications. We focus on the preparation of inorganic nanostructures by exploiting the unique properties and performances of cellulose structures. The advantages, physicochemical properties, and chemical modifications of the cellulose structures are comparatively discussed from the aspect of materials development and processing. Finally, the perspective and potential applications of cellulose-based bioinspired hierarchical functional nanomaterials in the future are outlined.
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Affiliation(s)
- Alojz Anžlovar
- National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;
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