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Yang D, Fan B, Sun G, He YC, Ma C. Ultraviolet blocking ability, antioxidant and antibacterial properties of newly prepared polyvinyl alcohol-nanocellulose‑silver nanoparticles-ChunJian peel extract composite film. Int J Biol Macromol 2023; 252:126427. [PMID: 37598821 DOI: 10.1016/j.ijbiomac.2023.126427] [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: 06/15/2023] [Revised: 07/28/2023] [Accepted: 08/17/2023] [Indexed: 08/22/2023]
Abstract
In this work, nanocellulose (CNC) from waste water chestnut (WCT) shell was firstly used for preparing nanocomposite films, by using ChunJian peel extract (CJPE) as a green reducing agent to synthesize silver nanoparticles (AgNPs), and then loading them into polyvinyl alcohol-nanocellulose (PVA-CNC) matrix, a multifunctional nanocomposite material that could be used in food packaging was developed. The prepared films were tested for mechanical strength, barrier properties, thermal properties, antibacterial, antioxidant and biocompatibility through various characterizations. The PVA-CNC-AgNPs-CJPE film had good thermostability, mechanical strength, barrier properties, and biocompatibility. Compared with pure PVA film and PVA-CNC film, PVA-CNC-AgNPs-CJPE could shield over 95 % of the UVB (320-275 nm) spectrum and UVC (275-200 nm) spectrum and most of the UVA (400-320 nm). By disk diffusion analysis, the inhibition zones of PVA-CNC-AgNPs-CJPE film against E. coli, P. aeruginosa, S. aureus and E. faecalis were 22.3 mm, 25.0 mm, 22.0 mm and 19.3 mm, respectively. The milk antibacterial simulation test confirmed that PVA-CNC-AgNPs-CJPE film could effectively limit bacterial reproduction and prolong the shelf life of milk. PVA-CNC-AgNPs-CJPE film had excellent UV barrier properties, good antioxidant properties and high-efficiency antibacterial activity, which is expected to be widely used in sustainable nanocomposite food packaging.
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Affiliation(s)
- Dan Yang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, China
| | - Bo Fan
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, China
| | - Guangting Sun
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, China
| | - Yu-Cai He
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, China; State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Lifes, Hubei University, Wuhan 430062, China.
| | - Cuiluan Ma
- State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Lifes, Hubei University, Wuhan 430062, China.
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Berradi A, Aziz F, Achaby ME, Ouazzani N, Mandi L. A Comprehensive Review of Polysaccharide-Based Hydrogels as Promising Biomaterials. Polymers (Basel) 2023; 15:2908. [PMID: 37447553 DOI: 10.3390/polym15132908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/20/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Polysaccharides have emerged as a promising material for hydrogel preparation due to their biocompatibility, biodegradability, and low cost. This review focuses on polysaccharide-based hydrogels' synthesis, characterization, and applications. The various synthetic methods used to prepare polysaccharide-based hydrogels are discussed. The characterization techniques are also highlighted to evaluate the physical and chemical properties of polysaccharide-based hydrogels. Finally, the applications of SAPs in various fields are discussed, along with their potential benefits and limitations. Due to environmental concerns, this review shows a growing interest in developing bio-sourced hydrogels made from natural materials such as polysaccharides. SAPs have many beneficial properties, including good mechanical and morphological properties, thermal stability, biocompatibility, biodegradability, non-toxicity, abundance, economic viability, and good swelling ability. However, some challenges remain to be overcome, such as limiting the formulation complexity of some SAPs and establishing a general protocol for calculating their water absorption and retention capacity. Furthermore, the development of SAPs requires a multidisciplinary approach and research should focus on improving their synthesis, modification, and characterization as well as exploring their potential applications. Biocompatibility, biodegradation, and the regulatory approval pathway of SAPs should be carefully evaluated to ensure their safety and efficacy.
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Affiliation(s)
- Achraf Berradi
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, P.O. Box 511, Marrakech 40000, Morocco
- Laboratory of Water, Biodiversity and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, P.O. Box 2390, Marrakech 40000, Morocco
| | - Faissal Aziz
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, P.O. Box 511, Marrakech 40000, Morocco
- Laboratory of Water, Biodiversity and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, P.O. Box 2390, Marrakech 40000, Morocco
| | - Mounir El Achaby
- Materials Science and Nano-Engineering (MSN) Department, Mohammed VI Polytechnic University (UM6P), Lot 660-Hay Moulay Rachid, Benguerir 43150, Morocco
| | - Naaila Ouazzani
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, P.O. Box 511, Marrakech 40000, Morocco
- Laboratory of Water, Biodiversity and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, P.O. Box 2390, Marrakech 40000, Morocco
| | - Laila Mandi
- National Center for Research and Studies on Water and Energy (CNEREE), Cadi Ayyad University, P.O. Box 511, Marrakech 40000, Morocco
- Laboratory of Water, Biodiversity and Climate Change, Faculty of Sciences Semlalia, Cadi Ayyad University, P.O. Box 2390, Marrakech 40000, Morocco
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3
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Bader A, Abdalla AN, Obaid NA, Youssef L, Naffadi HM, Elzubier ME, Almaimani RA, Flamini G, Pieracci Y, El-Readi MZ. In Vitro Anticancer and Antibacterial Activities of the Essential Oil of Forsskal’s Basil Growing in Extreme Environmental Conditions. Life (Basel) 2023; 13:life13030651. [PMID: 36983807 PMCID: PMC10057570 DOI: 10.3390/life13030651] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 02/17/2023] [Accepted: 02/23/2023] [Indexed: 03/02/2023] Open
Abstract
Many species belonging to the genus Ocimum are used for aromatic, medicinal, and cosmetic purposes. The essential oil (OFEO) obtained by hydrodistillation of the flowering aerial parts of Forsskal’s Basil “Ocimum forskolei Benth” growing in extreme environmental conditions in Mecca Region, Saudi Arabia was analyzed by GC-MS. The main constituents were phenylpropanoids (methyl eugenol 55.65% and eugenol 11.66%), monoterpene (linalool 9.75%), and sesquiterpenes (germacrene D 3.72% and β-caryophyllene 2.57%). The OFEO was tested against MCF7, HT29, and HCT116 cancer cells and compared with normal fibroblast cells (MRC5). The MTT assay showed that HCT116 was more sensitive to OFEO (IC50 5.34 μg/mL), which reduced the number of HCT116 colonies at 6 μg/mL, while causing complete colony death at 12 and 24 μg/mL. Western Blotting and qRT-PCR were used to evaluate the level change of different proteins with respect to GAPDH. OFEO upregulated the apoptotic protein (caspase 3), and downregulated the cell proliferation proteins (AKT and pAKT), cell cycle arrest (PCNA, Cyclin D1), and the anti-apoptotic Bcl2 proteins. OFEO was also tested against reference strains of Gram-negative and Gram-positive bacteria including Escherichia coli, Klebsiella pneumonia, Pseudomonas aeruginosa, and Staphylococcus aureus by using the well-diffusion and assessing their MICs, which ranged from 250 to 500 μg/mL.
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Affiliation(s)
- Ammar Bader
- Department of Pharmacognosy, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Correspondence:
| | - Ashraf N. Abdalla
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Department of Pharmacology and Toxicology, Medicinal and Aromatic Plants Research Institute, National Center for Research, Khartoum 2404, Sudan
| | - Najla A. Obaid
- Department of Pharmaceutics, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Lamees Youssef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Hind M. Naffadi
- Medical Genetic Department, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Mohamed E. Elzubier
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Riyad A. Almaimani
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
| | - Guido Flamini
- Dipartimento di Farmacia, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Ylenia Pieracci
- Dipartimento di Farmacia, University of Pisa, Via Bonanno 33, 56126 Pisa, Italy
| | - Mahmoud Zaki El-Readi
- Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
- Department of Biochemistry, Faculty of Pharmacy, Al-Azhar University, Assiut 71524, Egypt
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4
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Tang Q, Hu J, Li S, Lin S, Tu Y, Gui X, Dong Y. Preparation of an aramid nanofiber-reinforced colorimetric hydrogel employing natural anthocyanin as an indicator for shrimp and fish spoilage monitoring. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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5
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Chitosan nanocomposite film incorporating Nigella sativa oil, Azadirachta indica leaves’ extract, and silver nanoparticles. E-POLYMERS 2023. [DOI: 10.1515/epoly-2022-8083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Abstract
Nanocomposite films have been prepared from chitosan, cinnamaldehyde, Nigella sativa or blackseed oil, and silver nanoparticles (NPs) biosynthesized in Azadirachta indica or neem leaves’ extract. The methodology involved simple blending of components through “green chemistry” route. The films obtained were soft and foldable. The morphology by scanning electron microscopy confirmed the inclusion of NPs in the films. Microbial penetration study demonstrated that the films offered good resistance to secondary bacterial infection. The antibacterial study against Staphylococcus aureus (ATCC 29213) and E. coli (ATCC 25922) indicated moderate antibacterial behavior of the films. The swelling behavior in water, phosphate buffer saline, and simulated wound fluid was found to be appropriate for use as wound dressings. The films were biodegradable in soil and showed good thermal stability up to 200°C.
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6
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Easy regulation of chitosan-based hydrogel microstructure with citric acid as an efficient buffer. Carbohydr Polym 2023; 300:120258. [DOI: 10.1016/j.carbpol.2022.120258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/18/2022] [Accepted: 10/21/2022] [Indexed: 11/27/2022]
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Malik US, Duan Q, Niazi MBK, Jahan Z, Liaqat U, Sher F, Gan Y, Hou H. Vanillin cross-linked hydrogel membranes interfacial reinforced by carbon nitride nanosheets for enhanced antibacterial activity and mechanical properties. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.108071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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8
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Gamage A, Thiviya P, Mani S, Ponnusamy PG, Manamperi A, Evon P, Merah O, Madhujith T. Environmental Properties and Applications of Biodegradable Starch-Based Nanocomposites. Polymers (Basel) 2022; 14:polym14214578. [PMID: 36365571 PMCID: PMC9656360 DOI: 10.3390/polym14214578] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/21/2022] [Accepted: 10/25/2022] [Indexed: 12/01/2022] Open
Abstract
In recent years, the demand for environmental sustainability has caused a great interest in finding novel polymer materials from natural resources that are both biodegradable and eco-friendly. Natural biodegradable polymers can displace the usage of petroleum-based synthetic polymers due to their renewability, low toxicity, low costs, biocompatibility, and biodegradability. The development of novel starch-based bionanocomposites with improved properties has drawn specific attention recently in many applications, including food, agriculture, packaging, environmental remediation, textile, cosmetic, pharmaceutical, and biomedical fields. This paper discusses starch-based nanocomposites, mainly with nanocellulose, chitin nanoparticles, nanoclay, and carbon-based materials, and their applications in the agriculture, packaging, biomedical, and environment fields. This paper also focused on the lifecycle analysis and degradation of various starch-based nanocomposites.
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Affiliation(s)
- Ashoka Gamage
- Chemical and Process Engineering, Faculty of Engineering, University of Peradeniya, Peradeniya 20400, Sri Lanka
- Correspondence: (A.G.); (O.M.); Tel.: +94-714430714 (A.G.); +33-5-3432-3523 (O.M.)
| | - Punniamoorthy Thiviya
- Postgraduate Institute of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
| | - Sudhagar Mani
- School of Chemical, Materials and Biomedical Engineering, University of Georgia, Athens, GA 30602, USA
| | | | - Asanga Manamperi
- Department of Chemical Engineering, College of Engineering, Kettering University, Flint, MI 48504-6214, USA
| | - Philippe Evon
- Laboratoire de Chimie Agro-Industrielle (LCA), Institut National de la Recherche Agronomique, Université de Toulouse, CEDEX 4, 31030 Toulouse, France
| | - Othmane Merah
- Laboratoire de Chimie Agro-Industrielle (LCA), Institut National de la Recherche Agronomique, Université de Toulouse, CEDEX 4, 31030 Toulouse, France
- Département Génie Biologique, IUT A, Université Paul Sabatier, 32000 Auch, France
- Correspondence: (A.G.); (O.M.); Tel.: +94-714430714 (A.G.); +33-5-3432-3523 (O.M.)
| | - Terrence Madhujith
- Department of Food Science and Technology, Faculty of Agriculture, University of Peradeniya, Peradeniya 20400, Sri Lanka
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9
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Nanocellulose-based hydrogels as versatile drug delivery vehicles: A review. Int J Biol Macromol 2022; 222:830-843. [PMID: 36179866 DOI: 10.1016/j.ijbiomac.2022.09.214] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 09/19/2022] [Accepted: 09/24/2022] [Indexed: 11/22/2022]
Abstract
Hydrogels designed with nanocellulose (i.e. cellulose nanocrystals (CNC), cellulose nanofibrils (CNF), and bacterial cellulose (BC)) have significant advantages as drug carriers due to their environmentally-benign features and excellent properties. Nanocellulose hydrogels have been demonstrated to sustainably deliver various kinds of drugs via different routes of administration, in which nanocellulose significantly improves the hydrogel properties and tunes the drug releasing profile. This article comprehensively summarizes the recent research progress on nanocellulose hydrogels in drug delivery. We carefully assessed the gelation methods for nanocellulose hydrogel design and highlighted the influence of nanocellulose on hydrogel properties and drug release behaviors. In particular, it is the first time to summarize the research on nanocellulose hydrogel-based drug carriers regarding specific routes of administration. This work provides a critical review of nanocellulose-based hydrogels as drug delivery vehicles, and also underlines the outlook in this field, with the objective to inspire/prompt future work, especially the practical applications of nanocellulose hydrogels in designing controlled drug delivery systems.
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Tang Q, Hu J, Li S, Lin S, Tu Y, Gui X. Colorimetric hydrogel indicators based on polyvinyl alcohol/sodium alginate for visual food spoilage monitoring. Int J Food Sci Technol 2022. [DOI: 10.1111/ijfs.16035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Qiushi Tang
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 China
- University of Chinese Academy of Sciences Beijing 100039 China
- Shunde Polytechnic Foshan 528300 China
| | - Jiwen Hu
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 China
- University of Chinese Academy of Sciences Beijing 100039 China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 China
| | - Shi Li
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 China
- University of Chinese Academy of Sciences Beijing 100039 China
| | - Shudong Lin
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 China
- University of Chinese Academy of Sciences Beijing 100039 China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 China
| | - Yuanyuan Tu
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 China
- University of Chinese Academy of Sciences Beijing 100039 China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 China
| | - Xuefeng Gui
- Guangzhou Institute of Chemistry Chinese Academy of Sciences Guangzhou 510650 China
- University of Chinese Academy of Sciences Beijing 100039 China
- Guangdong Provincial Key Laboratory of Organic Polymer Materials for Electronics Guangzhou 510650 China
- CAS Engineering Laboratory for Special Fine Chemicals Guangzhou 510650 China
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11
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Alam M, Altaf M, Ahmad N. Rapeseed oil gallate-amide-urethane coating material: Synthesis and evaluation of coating properties. E-POLYMERS 2022. [DOI: 10.1515/epoly-2022-0021] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Abstract
The present manuscript describes the synthesis of urethane (ROGAU) coating material from Rapeseed oil (RO), Gallic acid (GA) and Toluylene-2,4-diisocyanate [TDI], for the first time. The reaction was accomplished in the following steps: (i) amidation of RO, producing diol fatty amide, HERA, followed by (ii) gallation reaction of HERA with GA, resulting in RO-based gallate amide (ROGA). The structural elucidation by FTIR and NMR confirmed the insertion of amide and ester moieties in the ROGA backbone. To add applicational value to ROGA, it was then derivatized by urethanation reaction with TDI to develop ambient temperature-cured ROGAU, as a corrosion protective coating material. ROGAU coatings were scratch resistant, well-adherent, and flexible to a considerable extent and showed good corrosion resistance performance toward saline medium (3.5 wt% NaCl). ROGAU coatings can be safely used up to 200°C.
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Affiliation(s)
- Manawwer Alam
- Department of Chemistry, College of Science, King Saud University , P.O. Box 2455 , Riyadh 11451 , Saudi Arabia
| | - Mohammad Altaf
- Department of Chemistry, College of Science, King Saud University , P.O. Box 2455 , Riyadh 11451 , Saudi Arabia
| | - Naushad Ahmad
- Department of Chemistry, College of Science, King Saud University , P.O. Box 2455 , Riyadh 11451 , Saudi Arabia
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Sharmin E, Batubara AS, Tamboosi BA, Al Khozay EB, Alamoudi MK, Al Aidaroos OZ, Albenayan JA, Lamfon MY, Sindi AAH, Al-Madboly LA, Shoeib NA, Alam M. PVA nanocomposite hydrogel loaded with silver nanoparticles enriched Nigella sativa oil. INORG NANO-MET CHEM 2021. [DOI: 10.1080/24701556.2021.1963277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Eram Sharmin
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Afnan S. Batubara
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Elaf Bander Al Khozay
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Maha Khalid Alamoudi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Ohoud Zaki Al Aidaroos
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Jana Abdullaziz Albenayan
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Majd Yousuf Lamfon
- Department of Pharmaceutical Chemistry, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | | | - Lamiaa A. Al-Madboly
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Nagwa A. Shoeib
- Department of Pharmacognosy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Manawwer Alam
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
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Liu C, Qin S, Xie J, Lin X, Zheng Y, Yang J, Kan H, Shi Z. Using Carboxymethyl Cellulose as the Additive With Enzyme-Catalyzed Carboxylated Starch to Prepare the Film With Enhanced Mechanical and Hydrophobic Properties. Front Bioeng Biotechnol 2021; 9:638546. [PMID: 33604332 PMCID: PMC7884610 DOI: 10.3389/fbioe.2021.638546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 01/05/2021] [Indexed: 01/25/2023] Open
Abstract
Carboxymethyl cellulose, a hydrophobic derivative from cellulose that can be prepared from different biomass, has been widely applied in food, medicine, chemical, and other industries. In this work, carboxymethyl cellulose was used as the additive to improve the hydrophobicity and strength of carboxylated starch film, which is prepared from starch catalyzed by bio-α-amylase. This study investigated the effects of different bio-α-amylase dosages (starch 0.5%, starch 1%) and different activation times (10, 30 min) on starch to prepare the carboxylated starch. The effects of different carboxymethyl cellulose content on the carboxylated starch film were investigated by analysis viscosity, fourier-transform infrared spectroscopy, thermogravimetric analysis, differential scanning calorimetry, x-ray powder diffraction, scanning electron microscope, and contact angle. The results showed that preparing carboxylated starch using activated starch increased the carboxyl content, which could improve the effectiveness of the activated enzyme compared to prolonging the activation time. The carboxyl starch prepared by enzyme catalysis had a lower gelatinization temperature, and enzyme activation destroyed the crystallization area of the starch, thus facilitating the carboxylation reaction. The addition of 15% carboxymethyl cellulose improved the mechanical properties of the prepared film with maximum tensile strength of 44.8 MPa. Carboxymethyl cellulose effectively improved the hydrophobicity of the starch film with the addition amount of 10–30%, while hydrophobic property was stable at 66.8° when the addition amount was exceeded to 35%. In this work, it can be found that carboxymethyl cellulose improve the mechanical and hydrophobic properties of starch film, laying the foundation for the application of carboxylated starch materials.
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Affiliation(s)
- Can Liu
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Shijiao Qin
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China.,College of Life Science, Southwest Forestry University, Kunming, China
| | - Jin Xie
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Xu Lin
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Yunwu Zheng
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Jing Yang
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
| | - Huan Kan
- College of Life Science, Southwest Forestry University, Kunming, China
| | - Zhengjun Shi
- The Key Laboratory of State Forestry and Grassland Administration on Highly-Efficient Utilization of Forestry Biomass Resources in Southwest China, Southwest Forestry University, Kunming, China
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