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Chen N, Ding Y, Li X, Li J, Cheng Y, Tian Y, Tian Y, Wu M. Chemical structures and immunomodulatory activities of polysaccharides from Polygonatum kingianum. Int J Biol Macromol 2024; 279:135406. [PMID: 39245127 DOI: 10.1016/j.ijbiomac.2024.135406] [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: 03/28/2024] [Revised: 08/18/2024] [Accepted: 09/05/2024] [Indexed: 09/10/2024]
Abstract
The physicochemical properties of the polysaccharides in Polygonatum kingianum, a Chinese medicinal herb used for both medicine and food, have not been fully studied. This study isolated three polysaccharides (PKP-1, PKP-2, and PKP-3) from the dry rhizomes of P. kingianum, with an average molecular weight of approximately 3137 Da, 5341 Da and 3755 Da, respectively. Structural analysis showed that all the three polysaccharides are fructans with β-D-Fruf-(2→, →6)-β-D-Fruf-(2→, →1)-β-D-Fruf-(2→, →1,6)-β-D-Fruf-(2→ and →6)-α-D-Glcp-(1→ glycosidic bond type. Notably, PKP-2 contains both acetyl groups and trace amounts of mannose residues. Scanning electron microscopy indicated that each polysaccharide possesses unique surface morphology. Thermal analysis showed that the three polysaccharides have good thermal stability. Rheological studies further revealed that all the three polysaccharides are typical shear thinning fluids. In vitro experiments showed that PKP-1 and PKP-2 significantly promote the secretion of NO and cytokines (TNF-α, IL-6) in macrophages by activating the NF-κB signaling pathway, thereby demonstrating potential immunomodulatory activity. These findings lay a theoretical foundation for the potential application of Polygonatum polysaccharides in the food industry.
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Affiliation(s)
- Nanyu Chen
- Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, China; State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yunzhang Ding
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; College of Life Sciences and Technology, Tarim University, Alar, Xinjiang 843300, China
| | - Xuan Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China; Key Laboratory for Forest Resources Conservation and Utilization, Southwest Mountains of China, Southwest Forestry University, Kunming 650224, China
| | - Jiang Li
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China
| | - Yongxian Cheng
- Institute for Inheritance-Based Innovation of Chinese Medicine, School of Pharmacy, Shenzhen University Medical School, Shenzhen University, Shenzhen 518060, China
| | - Yong Tian
- Shanghai Zhenchen Cosmetics Co., Ltd., Shanghai 201415, China; Shanghai Zhizhenzhichen Technology Co., Ltd., Shanghai 201109, China
| | - Yuncai Tian
- Shanghai Zhenchen Cosmetics Co., Ltd., Shanghai 201415, China; Shanghai Zhizhenzhichen Technology Co., Ltd., Shanghai 201109, China
| | - Mingyi Wu
- State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, China.
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Chen G, Sun J, Dai Q, Sun M, Hu P. Polysaccharides from Seedless Chestnut Rose ( Rosa sterilis) Fruits: Insights into Innovative Drying Technologies and Their Structural Characteristics, Antioxidant, Antiglycation, and α-Glucosidase Inhibitory Activities. Foods 2024; 13:2483. [PMID: 39200410 PMCID: PMC11353437 DOI: 10.3390/foods13162483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2024] [Revised: 07/31/2024] [Accepted: 08/06/2024] [Indexed: 09/02/2024] Open
Abstract
The selection of an optimal drying method is essential for extending the shelf life and enhancing the quality of Rosa sterilis fruits. This study investigated the effects of both innovative (microwave vacuum drying and infrared drying) and traditional (freeze-drying and hot air drying) techniques on the structural characteristics and bioactivities of polysaccharides from R. sterilis fruits (RSPs). Four different RSPs were obtained from fruits dried using these methods. Results demonstrated that the structural characteristics and bioactivities of RSPs varied significantly with the drying method. Notable differences were observed in extraction yield, total sugar, uronic acid content, monosaccharide molar ratios, molecular weight distribution, particle size, thermal stability, and microstructures of RSPs. Despite these variations, the types of constituent monosaccharides and major glycosidic linkages remained consistent across all methods. Notably, RSPs obtained via microwave vacuum drying (RSPs-MVD) showed a higher uronic acid content and lower molecular weight, and exhibited stronger in vitro antioxidant, α-glucosidase inhibitory, and antiglycation activities. These findings suggest that microwave vacuum drying is an effective pre-drying technique for extracting RSPs, making them suitable as bioactive ingredients in functional foods and pharmaceuticals for managing diabetes mellitus and its complications.
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Affiliation(s)
- Guangjing Chen
- College of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.S.); (Q.D.); (M.S.)
| | - Juyan Sun
- College of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.S.); (Q.D.); (M.S.)
| | - Qinghua Dai
- College of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.S.); (Q.D.); (M.S.)
| | - Meiwen Sun
- College of Food Science and Engineering, Guiyang University, Guiyang 550005, China; (J.S.); (Q.D.); (M.S.)
| | - Peng Hu
- School of Pharmacy, Hunan Traditional Chinese Medical College, Zhuzhou 412012, China
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3
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Vacek L, Polaštík Kleknerová D, Lipový B, Holoubek J, Matysková D, Černá E, Brtníková J, Jeklová E, Kobzová Š, Janda L, Lišková L, Diabelko D, Botka T, Pantůček R, Růžička F, Vojtová L. Phage therapy combined with Gum Karaya injectable hydrogels for treatment of methicillin-resistant Staphylococcus aureus deep wound infection in a porcine model. Int J Pharm 2024; 660:124348. [PMID: 38885776 DOI: 10.1016/j.ijpharm.2024.124348] [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: 02/20/2024] [Revised: 05/24/2024] [Accepted: 06/14/2024] [Indexed: 06/20/2024]
Abstract
Skin and soft tissue infections (SSTIs) represent a significant healthcare challenge, particularly in the context of increasing antibiotic resistance. This study investigates the efficacy of a novel therapeutic approach combining bacteriophage (phage) therapy with a gum Karaya (GK)-based hydrogel delivery system in a porcine model of deep staphylococcal SSTIs. The study exploits the lytic activity and safety of the Staphylococcus phage 812K1/420 of the Kayvirus genus, which is active against methicillin-resistant Staphylococcus aureus (MRSA). The GK injectable hydrogels and hydrogel films, developed by our research group, serve as effective, non-toxic, and easy-to-apply delivery systems, supporting moist wound healing and re-epithelialization. In the porcine model, the combined treatment showed asynergistic effect, leading to a significant reduction in bacterial load (2.5 log CFU/gram of tissue) within one week. Local signs of inflammation were significantly reduced by day 8, with clear evidence of re-epithelialization and wound contraction. Importantly, no adverse effects of the GK-based delivery system were observed throughout the study. The results highlight the potential of this innovative therapeutic approach to effectively treat deep staphylococcal SSTIs, providing a promising avenue for further research and clinical application in the field of infections caused by antibiotic-resistant bacteria.
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Affiliation(s)
- L Vacek
- Department of Microbiology, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Pekařská 53, 602 00 Brno, Czech Republic
| | - D Polaštík Kleknerová
- Department of Microbiology, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Pekařská 53, 602 00 Brno, Czech Republic
| | - B Lipový
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic; Advanced Biomaterials Group, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
| | - J Holoubek
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - D Matysková
- Department of Burns and Plastic Surgery, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - E Černá
- Advanced Biomaterials Group, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
| | - J Brtníková
- Advanced Biomaterials Group, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
| | - E Jeklová
- Clinical Immunology and Immunology of Infectious Diseases, Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic
| | - Š Kobzová
- Clinical Immunology and Immunology of Infectious Diseases, Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic
| | - L Janda
- Clinical Immunology and Immunology of Infectious Diseases, Veterinary Research Institute, Hudcova 296/70, 621 00 Brno, Czech Republic
| | - L Lišková
- Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Kamenice 5, 625 00 Brno, Czech Republic
| | - D Diabelko
- Department of Microbiology, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Pekařská 53, 602 00 Brno, Czech Republic
| | - T Botka
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic
| | - R Pantůček
- Department of Experimental Biology, Faculty of Science, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic
| | - F Růžička
- Department of Microbiology, St. Anne's University Hospital and Faculty of Medicine, Masaryk University, Pekařská 53, 602 00 Brno, Czech Republic.
| | - L Vojtová
- Advanced Biomaterials Group, Central European Institute of Technology, Brno University of Technology, Purkyňova 656/123, 612 00 Brno, Czech Republic
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Xia P, Zheng Y, Sun L, Chen W, Shang L, Li J, Hou T, Li B. Regulation of glycose and lipid metabolism and application based on the colloidal nutrition science properties of konjac glucomannan: A comprehensive review. Carbohydr Polym 2024; 331:121849. [PMID: 38388033 DOI: 10.1016/j.carbpol.2024.121849] [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: 11/15/2023] [Revised: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024]
Abstract
The physicochemical properties of dietary fiber in the gastrointestinal tract, such as hydration properties, adsorption properties, rheological properties, have an important influence on the physiological process of host digestion and absorption, leading to the differences in satiety and glucose and lipid metabolisms. Based on the diversified physicochemical properties of konjac glucomannan (KGM), it is meaningful to review the relationship of structural characteristics, physicochemical properties and glycose and lipid metabolism. Firstly, this paper bypassed the category of intestinal microbes, and explained the potential of dietary fiber in regulating glucose and lipid metabolism during nutrient digestion and absorption from the perspective of colloidal nutrition. Secondly, the modification methods of KGM to regulate its physicochemical properties were discussed and the relationship between KGM's molecular structure types and glycose and lipid metabolism were summarized. Finally, based on the characteristics of KGM, the application of KGM in the main material and ingredients of fat reduction food was reviewed. We hope this work could provide theoretical basis for the study of dietary fiber colloid nutrition science.
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Affiliation(s)
- Pengkui Xia
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ying Zheng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Li Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenxin Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Longchen Shang
- College of Biological and Food Engineering, Hubei Minzu University, Enshi 445000, China
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China.
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China.
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5
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da Silva DA, Brasil DDSB, Cunha EJDS, Aires GCM, da Costa RA, do Rego JDAR, Pena RDS. Structural and Thermal Characteristics of Buriti Tree Gum (Mauritia flexuosa). Polymers (Basel) 2023; 15:polym15071662. [PMID: 37050276 PMCID: PMC10097139 DOI: 10.3390/polym15071662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/18/2023] [Accepted: 03/23/2023] [Indexed: 03/29/2023] Open
Abstract
A polysaccharide was isolated from the exudate of a buriti tree trunk (Mauritia flexuosa). The molecular structure, thermal stability, morphology, crystallinity, and elemental composition of the product were investigated through spectroscopic techniques, such as Fourier-transform infrared spectroscopy (FTIR), nuclear magnetic resonance (NMR 1H and 13C), and energy-dispersive X-ray spectroscopy (EDS); thermogravimetric analysis (TG), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and X-ray diffraction (XRD). In addition to NMR molecular modeling studies, were performed to confirm the 1H and 13C chemical shifts to Gal and Xyl conformers. Buriti tree gum (BG) is an arabinogalactan, containing Rha, Ara, Xyl, and Gal, and degrades almost completely (98.5%) at 550 °C and has a maximum degradation peak at 291.97 °C, with a mass loss of 56.33%. In the temperature range of 255–290 °C, the energy involved in the BG degradation process was approximately 17 J/g. DSC indicated a glass transition temperature of 27.2 °C for BG, which had an irregular and heterogeneous morphology, with smooth or crumbling scaly regions, demonstrating the amorphous nature of BG that was confirmed by the XRD standard. EDS revealed the presence of carbon and oxygen, as well as calcium, magnesium, aluminum, silicon, chlorine, and potassium, in the BG composition.
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Rihova M, Lepcio P, Cicmancova V, Frumarova B, Hromadko L, Bureš F, Vojtova L, Macak JM. The centrifugal spinning of vitamin doped natural gum fibers for skin regeneration. Carbohydr Polym 2022; 294:119792. [DOI: 10.1016/j.carbpol.2022.119792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 11/17/2022]
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7
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Impact of weakly charged insoluble karaya gum on zein nanoparticle and mechanism for stabilizing Pickering emulsions. Int J Biol Macromol 2022; 222:121-131. [PMID: 36113597 DOI: 10.1016/j.ijbiomac.2022.09.066] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/18/2022] [Accepted: 09/07/2022] [Indexed: 11/23/2022]
Abstract
The effect of weakly charged insoluble karaya gum (KG) on zein colloidal nanoparticles (ZKGPs) for stabilizing Pickering emulsions was investigated. Due to weak surface charge, KG could cover the surface of zein particles by hydrogen bonds and weak electrostatic interactions. With the increase in coverage, the zeta potential of ZKGPs changed from positive to negative values close to zero and the average particle size tended to become larger. The closest neutral wettability (89.85°) was achieved when the zein/KG mass ratio was 1:1. The samples prepared with high oil volume fraction (φ = 0.5-0.75) and high particle concentration (1.0-1.3 %, w/v) formed emulsion gels easily and showed higher storage stability. CLSM images also confirmed that ZKGPs could be distributed in the continuous phase to enhance the emulsion network structure. Consequently, weakly charged ZKGPs reduced the emulsification energy barrier and increased the coverage and steric hindrance of particles at the oil/water interface. These findings provide new ideas for the development of stable Pickering emulsions for application in food textural modification as well as encapsulation and delivery of bioactive substances.
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Xu G, Xu N, Ren T, Chen C, Li J, Ding L, Chen Y, Chen G, Li Z, Yu Y. Multifunctional chitosan/silver/tannic acid cryogels for hemostasis and wound healing. Int J Biol Macromol 2022; 208:760-771. [PMID: 35364198 DOI: 10.1016/j.ijbiomac.2022.03.174] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 11/05/2022]
Abstract
Wound dressing is a kind of significant artificial materials for protecting injured tissues and promoting wound healing. However, fabrication of antibacterial wound dressing usually involves tedious procedures and toxic components. Herein, we demonstrate a multifunctional chitosan/silver/tannic acid (CS/Ag/TA) cryogel based on an economic method to block acute hemorrhage and promote wound healing. The prepared CS/Ag/TA cryogel not only performs steady stability and compressibility, but also shows good antibacterial ability for both S. aureus and E. coli. Attributing to TA molecules, the CS/Ag/TA cryogel can effectively scavenge more than 95% of free radicals, showing effective oxidation resistance. Due to the porous structure and positive charge of CS, the prepared cryogel exhibits good hemostatic capability with a hemostasis time less than 20 s. Benefitting from the good biocompatibility and cell proliferation, the CS/Ag/TA cryogel can significantly promote wound repair in the skin incision model. All the results indicated that the greenly fabricated cryogel can be widely applied in clinic for hemostasis and wound healing.
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Affiliation(s)
- Gan Xu
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China; College of Biological Science and Engineering, Fuzhou University, Fuzhou 350002, PR China
| | - Na Xu
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China
| | - Tingjie Ren
- Department of Arthrosteopedic Surgery, The First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan, Guangdong Province 528000, China
| | - Changyou Chen
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China
| | - Jiangfeng Li
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China
| | - Liangping Ding
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China
| | - Yang Chen
- Department of Arthrosteopedic Surgery, The First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan, Guangdong Province 528000, China.
| | - Guoqiang Chen
- Department of Arthrosteopedic Surgery, The First People's Hospital of Foshan & Foshan Hospital of Sun Yat-sen University, Foshan, Guangdong Province 528000, China
| | - Zheng Li
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China.
| | - Yunlong Yu
- Institute of Burn Research, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, PR China.
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Novel Karaya Gum Derivatives Produced by Alkaline Hydrolysis and Periodate Oxidation for Active Packaging with Cinnamaldehyde. J CHEM-NY 2022. [DOI: 10.1155/2022/3939911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This study aims to produce novel derivatives of karaya gum using chemical modification and then apply them for active packaging with cinnamaldehyde as the main active component. Native karaya gum (NKG) was hydrolyzed using sodium hydroxide to yield hydrolyzed karaya gum (HKG), which then was oxidized using sodium periodate to yield hydrolyzed-oxidized karaya gum (HOKG). For comparison, NKG was also directly oxidized using sodium periodate to produce oxidized karaya gum (OKG). FTIR spectra confirmed the removal of acetyl groups after alkaline hydrolysis and the formation of carbonyl groups with subsequent formation of hemiacetal and acetal structures after periodate oxidation. The alkaline hydrolysis and the periodate oxidation resulted in opposite effects on the hydrophilicity of the gum: hydrolysis increased solubility, moisture uptake, and viscosity, while periodate oxidation decreased these properties. We then produced films from corn starch and these gums (5%
gum/starch) and properties of the films were studied. Hydrolysis of KG resulted in higher tensile strength, higher transparency but lower puncture strength and antifungal activity against of the films, while periodate oxidation exerted the opposite effects. The incorporation of 5% cinnamaldehyde (
of starch) exerted strong antifungal and antibacterial effects on the films against Colletotrichum gloeosporioides and Escherichia coli, which are useful in active packaging. The active packages based on the novel derivatives of KG can find applications in the agricultural, food, and pharmaceutical industries.
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Recent development in the medical and industrial applications of gum karaya: a review. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04227-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Rehman F, Khan IU, Khalid SH, Asghar S, Irfan M, Khalid I, Rasul A, Mahmood H, Yousaf AM, Shahzad Y, Mudassar M, Mohsin NUA. Optimization, in vitro release and toxicity evaluation of novel pH sensitive itaconic acid-g-poly(acrylamide)/sterculia gum semi-interpenetrating networks. Daru 2021; 29:171-184. [PMID: 33899162 PMCID: PMC8149496 DOI: 10.1007/s40199-021-00395-8] [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: 12/14/2020] [Accepted: 04/05/2021] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND In recent era, pH sensitive polymeric carriers that combines the materials engineering and medicine is gaining researcher's attention as they maximizes drug concentration at site of absorption and reduces side effects for e.g. orally administered cetirizine HCl (CTZ HCl) upsets the stomach and furthermore shows high intestinal absorption. Thus, development of pH sensitive hydrogels with sufficient mechanical strength will be good candidate to address this issue. METHODS Here, we developed pH sensitive itaconic acid-g-poly(acrylamide)/sterculia gum (IA-g-poly(AM)/sterculia gum) semi-interpenetrating network (semi-IPN) by free radical polymerization technique for intestinal delivery of CTZ HCL. RESULTS Optimized formulation (I5) with 6% w/w IA showed negligible swelling at pH 1.2, and maximum swelling at pH 7.4. Solid state characterization of optimized formulation showed successful development of semi-IPN structure and incorporation of drug without any noticeable drug-carrier interaction. In vitro release study showed biphasic pH dependent release of CTZ HCl, where initial burst release was observed at acidic pH followed by sustained release at basic pH. Acute oral toxicity and histopathological studies confirmed the non-toxic nature of IA-g-poly(AM)/sterculia gum. CONCLUSION Conclusively, developed biocompatible semi-IPN hydrogels with sufficient pH sensitivity and mechanical strength could serve as a potential carrier for intestinal delivery of CTZ HCL to maximize its absorption and reduce side effects.
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Affiliation(s)
- Fauzia Rehman
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
- School of Pharmacy, The University of Faisalabad, Faisalabad, Faisalabad, Pakistan
| | - Ikram Ullah Khan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan.
| | - Syed Haroon Khalid
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Sajid Asghar
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Muhammad Irfan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ikrima Khalid
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Akhtar Rasul
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Huma Mahmood
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
| | - Abid Mehmood Yousaf
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Yasser Shahzad
- Department of Pharmacy, COMSATS University Islamabad, Lahore Campus, Lahore, Pakistan
| | - Muhammad Mudassar
- Pathology Department, Batterjee Medical College, Jeddah, Saudi Arabia
| | - Noor Ul Amin Mohsin
- Department of Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Faisalabad, Pakistan
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Li Z, Zhang L, Mao C, Song Z, Li X, Liu C. Preparation and characterization of konjac glucomannan and gum arabic composite gel. Int J Biol Macromol 2021; 183:2121-2130. [PMID: 34087301 DOI: 10.1016/j.ijbiomac.2021.05.196] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 05/24/2021] [Accepted: 05/30/2021] [Indexed: 11/29/2022]
Abstract
Compounding is a safe method to avoid limitations of a singular gel. Here, composite gels were prepared with konjac glucomannan (KGM) and gum arabic (GA) and evaluated by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), water solubility index (WSI), water absorption index (WAI), texture profile analysis (TPA) and rheological analysis. The gel stratified when GA concentration ≥ 2.5%. FTIR indicated that the interactions of KGM and GA were mainly related to hydrogen bonds and acetyl groups, and the solution separated from gels only included GA and water molecules. The microstructures became denser and contained smaller holes at high GA concentrations as seen by SEM. WSI and WAI both increased with GA increasing. Hardness and springiness dropped when GA concentration increased from 0 to 2.0%, but they increased when GA increased from 2.0% to 4.0%. Rheological analysis showed the gels were non-Newtonian pseudoplastic fluids, with anti-thixotropy (GA ≤ 3.5%) and thixotropy (GA ≥ 4.0%). Furthermore, the gels could be classified as non-covalent gels, with higher gel strength at high GA concentrations. The non-covalent linkages included hydrogen bonding and hydrophobic interaction, and hydrogen bonding held the dominated status. Therefore, KGM and GA have antagonistic and synergistic effects.
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Affiliation(s)
- Zhenyu Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, China; Electron Microscopy Center, Jilin University, Changchun 130012, China
| | - Ling Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China.
| | - Chunling Mao
- College of Food and Biotechnology, Changchun Vocational Institute of Technology, Changchun 130033, China
| | - Zhiming Song
- Department of Physical Education, Changchun Medical College, Changchun 130031, China
| | - Xinxin Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Chun Liu
- College of Food Science and Engineering, Jilin University, Changchun 130062, China; Electron Microscopy Center, Jilin University, Changchun 130012, China
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Effect of Cryostructuring Treatment on Some Properties of Xanthan and Karaya Cryogels for Food Applications. Molecules 2021; 26:molecules26092788. [PMID: 34065084 PMCID: PMC8125894 DOI: 10.3390/molecules26092788] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/30/2021] [Accepted: 05/06/2021] [Indexed: 11/16/2022] Open
Abstract
Cryogels are novel materials because the manufacturing process known as cryostructuring allows biopolymers to change their properties as a result of repeated controlled freeze-thaw cycles. Hydrogels of xanthan and karaya gums were evaluated after undergoing up to four controlled freeze-thaw cycles in indirect contact with liquid nitrogen (up to -150 °C) to form cryogels. Changes in structural, molecular, rheological, and thermal properties were evaluated and compared to those of their respective hydrogels. Samples were also analyzed by Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy with Attenuated Total Reflection (FTIR-ATR), Rotational Rheology (RR), Modulated Differential Scanning Calorimetry (MDSC) and zeta potential (ζ). In general, significant differences (p < 0.05) between the numbers of freeze-thaw cycles were found. Karaya cryogels were not stable to repeated cycles of cryostructuring such as the three-cycle xanthan cryogel, which has the best structural order (95.55%), molecular interactions, and thermal stability, which allows the generation of a novel material with improved thermal and structural properties that can be used as an alternative in food preservation.
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Khezerlou A, Zolfaghari H, Banihashemi SA, Forghani S, Ehsani A. Plant gums as the functional compounds for edible films and coatings in the food industry: A review. POLYM ADVAN TECHNOL 2021. [DOI: 10.1002/pat.5293] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Arezou Khezerlou
- Students Research Committee, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
| | - Hajar Zolfaghari
- Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
| | - Seyed Alireza Banihashemi
- Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
| | - Samira Forghani
- Department of Food Science and Technology, Faculty of Agriculture Urmia University Urmia Iran
| | - Ali Ehsani
- Nutrition Research Center, Department of Food Sciences and Technology, Faculty of Nutrition and Food Sciences Tabriz University of Medical Sciences Tabriz Iran
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15
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Hydrolyzed Karaya Gum: Gelatin Complex Coacervates for Microencapsulation of Soybean Oil and Curcumin. J FOOD QUALITY 2021. [DOI: 10.1155/2021/5593065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
This is the first report on utilizing hydrolyzed karaya gum (HKG) as a novel polyanion material for complex coacervation with gelatin A. With negative zeta potentials at pH > 2.5, HKG formed the complex coacervate with a maximum yield at pH 3.75 and 1 : 1 HKG:gelatin ratio. The optimal complex coacervates were used to encapsulate soybean oil containing curcumin using different shell:core ratios, homogenization speeds, concentrations of emulsifier, and drying techniques. Optical microscopy showed that increasing homogenization speed and Tween 80 concentration produced smaller and more uniform coacervate particles. Increasing the shell:core mass ratio from 1 to 4 resulted in a linear increase in encapsulation efficiencies for both soybean oil and curcumin. Accelerated peroxidation tests on the microcapsules showed enhanced protective effects against oil peroxidation when increasing shell:core ratios and using freeze-drying instead of oven-drying at 50 oC. In vitro release of curcumin in simulated gastric and intestinal fluids was faster when using freeze-drying and decreasing shell:core ratio. This study shows perspective novel applications of HKG in microencapsulating active ingredients for food and pharmaceutical industries.
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16
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Do TTH, Lai TNB, Stephenson SL, Tran HTM. Cytotoxicity activities and chemical characteristics of exopolysaccharides and intracellular polysaccharides of Physarum polycephalum microplasmodia. BMC Biotechnol 2021; 21:28. [PMID: 33773573 PMCID: PMC8005236 DOI: 10.1186/s12896-021-00688-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 03/15/2021] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Microbial polysaccharides have been reported to possess remarkable bioactivities. Physarum polycephalum is a species of slime mold for which the microplasmodia are capable of rapid growth and can produce a significant amount of cell wall-less biomass. There has been a limited understanding of the polysaccharides produced by microplasmodia of slime molds, including P. polycephalum. Thus, the primary objectives of this research were first to chemically characterize the exopolysaccharides (EPS) and intracellular polysaccharides (IPS) of P. polycephalum microplasmodia and then to evaluate their cytotoxicity against several cancer cell lines. RESULTS The yields of the crude EPS (4.43 ± 0.44 g/l) and partially purified (deproteinated) EPS (2.95 ± 0.85 g/l) were comparable (p > 0.05) with the respective crude IPS (3.46 ± 0.36 g/l) and partially purified IPS (2.45 ± 0.36 g/l). The average molecular weight of the EPS and IPS were 14,762 kDa and 1788 kDa. The major monomer of the EPS was galactose (80.22%), while that of the IPS was glucose (84.46%). Both crude and purified IPS samples showed significantly higher cytotoxicity toward Hela cells, especially the purified sample and none of the IPSs inhibited normal cells. Only 38.42 ± 2.84% Hela cells remained viable when treated with the partially purified IPS (1 mg/ml). However, although only 34.76 ± 6.58% MCF-7 cells were viable when exposed to the crude IPS, but the partially purified IPS displayed non-toxicity to MCF-7 cells. This suggested that the cytotoxicity toward MCF-7 would come from some component associated with the crude IPS sample (e.g. proteins, peptides or ion metals) and the purification process would have either completely removed or reduced amount of that component. Cell cycle analysis by flow cytometry suggested that the mechanism of the toxicity of the crude IPS toward MCF-7 and the partially purified IPS toward Hela cells was due to apoptosis. CONCLUSIONS The EPS and IPS of P. polycephalum microplasmodia had different chemical properties including carbohydrate, protein and total sulfate group contents, monosaccharide composition and molecular weights, which led to different cytotoxicity activities. The crude and partially purified IPSs would be potential materials for further study relating to cancer treatment.
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Affiliation(s)
- Tuyen T H Do
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
- Faculty of Biotechnology, Ho Chi Minh City University of Food Industry, Ho Chi Minh City, Vietnam
| | - Tran N B Lai
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam
- Vietnam National University, Ho Chi Minh City, Vietnam
| | - Steven L Stephenson
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR, USA
| | - Hanh T M Tran
- School of Biotechnology, International University, Ho Chi Minh City, Vietnam.
- Vietnam National University, Ho Chi Minh City, Vietnam.
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17
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Lima CPCD, Oster AH, Cavalcanti FR, Paula RCMD, Feitosa JPA. Induction of defense in apples by sulfated and deacetylated chichá gum. POLIMEROS 2021. [DOI: 10.1590/0104-1428.08820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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18
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Silva SCCC, Braz EMA, Brito CARS, Alves MMM, Carvalho FAA, Barreto HM, Oliveira AL, Silva DA, Silva-Filho EC. Phthalic anhydride esterified chicha gum: characterization and antibacterial activity. Carbohydr Polym 2021; 251:117077. [PMID: 33142620 DOI: 10.1016/j.carbpol.2020.117077] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 09/01/2020] [Accepted: 09/07/2020] [Indexed: 01/10/2023]
Abstract
The objective of this research was to modify chicha gum with phthalic anhydride to obtain a new biologically active material. The chemical modification of the gum structure was proven through FTIR, elemental analysis, XRD, TG, and DSC. The derived materials demonstrated excellent inhibitory effect against P. aeruginosa and K. pneumoniae species (rating 100% inhibition) and could also inhibit Escherichia coli growth. The best antimicrobial activity observed for the derivatives suggests that chicha gum hydrophobization due to the addition of phthalic groups improved the interaction of these derivatives with bacterial cell wall components. On the other hand, the derivatives increased CC50 in macrophages but did not present acute toxicity or hemolytic activity, indicating that they are promising for use in prophylaxis or treatment of infections caused by Gram-negative bacteria.
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Affiliation(s)
- Solranny Carla Cavalcante Costa Silva
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil; Universidade Estadual do Piauí, Campus Professor Ariston Dias Lima, São Raimundo Nonato, PI CEP: 64770-000, Brazil
| | - Elton Marks Araujo Braz
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Carla Adriana Rodrigues Sousa Brito
- Laboratório de Pesquisa em Microbiologia, Universidade Federal do Piauí, Campus Universitário Ministro Petrônio Portella, Teresina, PI CEP 64049-550, Brazil
| | - Michel Muálem Moraes Alves
- Núcleo de Pesquisa em Plantas Medicinais - NPPM, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil; Departamento de Morfofisiologia Veterinária, Centro de Ciências Agrárias, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Fernando Aécio Amorim Carvalho
- Núcleo de Pesquisa em Plantas Medicinais - NPPM, Universidade Federal do Piauí, Campus Ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Humberto Medeiros Barreto
- Laboratório de Pesquisa em Microbiologia, Universidade Federal do Piauí, Campus Universitário Ministro Petrônio Portella, Teresina, PI CEP 64049-550, Brazil
| | - Ana Leite Oliveira
- Universidade Católica Portuguesa, CBQF - Centro de Biotecnologia e Química Fina - Laboratório Associado, Escola Superior de Biotecnologia, Porto, Portugal
| | - Durcilene Alves Silva
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
| | - Edson C Silva-Filho
- Laboratório Interdisciplinar de Materiais Avançados - LIMAV, Universidade Federal do Piauí, Campus ministro Petrônio Portela, Teresina, PI CEP 64049-550, Brazil
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19
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Ma H, Huang Q, Ren J, Zheng Z, Xiao Y. Structure characteristics, solution properties and morphology of oxidized yeast β-glucans derived from controlled TEMPO-mediated oxidation. Carbohydr Polym 2020; 250:116924. [DOI: 10.1016/j.carbpol.2020.116924] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 07/26/2020] [Accepted: 08/07/2020] [Indexed: 11/26/2022]
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20
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Comparative study on glucomannans with different structural characteristics: Functional properties and intestinal production of short chain fatty acids. Int J Biol Macromol 2020; 164:826-835. [DOI: 10.1016/j.ijbiomac.2020.07.186] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/17/2020] [Accepted: 07/17/2020] [Indexed: 02/07/2023]
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21
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Araujo FP, Trigueiro P, Honório LMC, Oliveira DM, Almeida LC, Garcia RP, Lobo AO, Cantanhêde W, Silva-Filho EC, Osajima JA. Eco-friendly synthesis and photocatalytic application of flowers-like ZnO structures using Arabic and Karaya Gums. Int J Biol Macromol 2020; 165:2813-2822. [PMID: 33736284 DOI: 10.1016/j.ijbiomac.2020.10.132] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 10/09/2020] [Accepted: 10/15/2020] [Indexed: 12/01/2022]
Abstract
Flowers-like ZnO structures were synthesized using Arabic Gum (AGZnO) or Karaya Gum (KGZnO). The AGZnO and KGZnO were characterized by X-ray diffractometry, Fourier Transformed Infrared, Scanning Electron Microscopy, Photoluminescence, nitrogen adsorption/desorption and diffuse reflectance techniques. The materials were tested in the discoloration of Methylene Blue (MB) dye under visible light and scavenger studies were also performed. The toxicity of the MB irradiated was investigated in bioassays with Artemia salina. The structural characterization demonstrated the formation of hexagonal ZnO. All samples presented flower-like morphology with presence of mesopores identified by BET method. The optical properties indicated band gap of 2.99 (AGZnO) and 2.76 eV (KGZnO), and emission in violet, blue and green emissions also were observed. The KGZnO demonstrated better photocatalytic performance than the AGZnO, and scavenger studies indicated that OH radicals are the main species involved in the degradation of the pollutant model. The photodiscoloration of MB solution did not demonstrate toxicity. Therefore, KGZnO is a promising material for photocatalysis application.
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Affiliation(s)
- Francisca P Araujo
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil
| | - Pollyana Trigueiro
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil
| | - Luzia M C Honório
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil
| | - Dyego M Oliveira
- Federal University of Pernambuco, Postgraduate Program in Materials Science and Engineering, Recife, PE, Brazil
| | - Luciano C Almeida
- Federal University of Pernambuco, Chemical Engineering Department, Recife, PE, Brazil
| | - Ramón Peña Garcia
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil
| | - Anderson Oliveira Lobo
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil
| | - Welter Cantanhêde
- Federal University of Piauí, Chemistry Department, Teresina, PI, Brazil
| | - Edson C Silva-Filho
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil
| | - Josy A Osajima
- Federal University of Piauí, Interdisciplinary Laboratory Advanced Materials (Limav), Teresina, PI, Brazil.
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22
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Silva SCCC, Araujo Braz EMD, Amorim Carvalho FAD, Sousa Brito CARD, Brito LM, Barreto HM, Silva Filho ECD, Silva DAD. Antibacterial and cytotoxic properties from esterified Sterculia gum. Int J Biol Macromol 2020; 164:606-615. [PMID: 32652149 DOI: 10.1016/j.ijbiomac.2020.07.031] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2020] [Revised: 06/15/2020] [Accepted: 07/05/2020] [Indexed: 01/20/2023]
Abstract
Sterculia gums, as karaya and chicha gum, are complex branched and polydisperse heteropolysaccharides which can have their applications extended by improving their characteristics through chemical modifications. The objective of this work was to increase the antimicrobial activity of karaya and chicha gum through chemical modification with maleic anhydride. The incorporation of anhydride in the gum structure was confirmed by the characterization techniques. The derived biopolymers were synthesized and characterized by FTIR, X-ray diffraction, Thermogravimetric analysis and elemental analysis. Antimicrobial activity was evaluated against the Staphylococcus aureus strain (ATCC 25923). Mammalian cytotoxicity assays were also performed by MTT and hemolysis tests. The derivatives showed excellent antibacterial action inhibiting almost 100% of bacterial growth and did not present significant cytotoxicity in mammalian cells. The results showed that the derivatives are promising for biomedical applications aiming the control of infectious diseases caused by S. aureus.
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Affiliation(s)
- Solranny Carla Cavalcante Costa Silva
- State University of Piauí, São Raimundo Nonato, PI CEP: 64770-000, Brazil; Interdisciplinary Laboratory of Advanced Materials, Federal University of Piauí Teresina, PI CEP 64049-550, Brazil.
| | - Elton Marks de Araujo Braz
- Interdisciplinary Laboratory of Advanced Materials, Federal University of Piauí Teresina, PI CEP 64049-550, Brazil.
| | | | | | - Lucas Moreira Brito
- Medicinal Plants Research Center, Federal University of Piauí, Teresina, PI CEP 64049-550, Brazil
| | | | | | - Durcilene Alves da Silva
- Biotechnology and Biodiversity Center Research, Federal University of the Parnaíba Delta, Parnaíba, PI 64202-020, Brazil.
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23
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Rheological and physicochemical properties of polysaccharides extracted from stems of Dendrobium officinale. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105706] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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Sustainable natural gums for industrial application: Physiochemical and texturometric evaluation. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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25
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Cao TL, Song KB. Effects of gum karaya addition on the characteristics of loquat seed starch films containing oregano essential oil. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.105198] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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26
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Tahir HE, Xiaobo Z, Mahunu GK, Arslan M, Abdalhai M, Zhihua L. Recent developments in gum edible coating applications for fruits and vegetables preservation: A review. Carbohydr Polym 2019; 224:115141. [DOI: 10.1016/j.carbpol.2019.115141] [Citation(s) in RCA: 68] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 07/22/2019] [Accepted: 07/27/2019] [Indexed: 11/28/2022]
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27
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Cao TL, Song KB. Active gum karaya/Cloisite Na+ nanocomposite films containing cinnamaldehyde. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.11.004] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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28
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Zavareze EDR, Kringel DH, Dias ARG. Nano-scale polysaccharide materials in food and agricultural applications. ADVANCES IN FOOD AND NUTRITION RESEARCH 2019; 88:85-128. [PMID: 31151729 DOI: 10.1016/bs.afnr.2019.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Potential applications of nanotechnology in food and agriculture include: (1) the encapsulation of functional compounds; (2) production of reinforcing materials; (3) delivery of nutraceuticals in foods; (4) food safety, for detection and control of chemical and microbiological risks; (5) active and intelligent food packaging; (6) incorporation of protective substances of seeds; (7) addition of nutrients in the soil; (8) use of controlled release pesticides. Natural polysaccharides and their derivatives are widely used in the production of nano-scale materials. This chapter examines, the use of polysaccharides, such as starch, cellulose, lignin, pectin, gums, and cyclodextrins for the production of nano-scale materials, including nanocrystals, nanoemulsions, nanocomplexes, nanocapsules, and nanofibers.
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Affiliation(s)
| | - Dianini Hüttner Kringel
- Department of Agroindustrial Science and Technology, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Alvaro Renato Guerra Dias
- Department of Agroindustrial Science and Technology, Federal University of Pelotas, Pelotas, RS, Brazil.
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29
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Gong J, Wang L, Wu J, Yuan Y, Mu RJ, Du Y, Wu C, Pang J. The rheological and physicochemical properties of a novel thermosensitive hydrogel based on konjac glucomannan/gum tragacanth. Lebensm Wiss Technol 2019. [DOI: 10.1016/j.lwt.2018.10.080] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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30
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Zheng Z, Huang Q, Luo X, Xiao Y, Cai W, Ma H. Effects and mechanisms of ultrasound- and alkali-assisted enzymolysis on production of water-soluble yeast β-glucan. BIORESOURCE TECHNOLOGY 2019; 273:394-403. [PMID: 30458409 DOI: 10.1016/j.biortech.2018.11.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 11/07/2018] [Accepted: 11/08/2018] [Indexed: 05/15/2023]
Abstract
This study investigated the effects and related mechanisms of ultrasound- and alkali-assisted enzymolysis on production of water-soluble yeast β-glucan (WSYG). Results indicated that ultrasound and alkali pretreatments reduced the particle size of yeast β-glucan (YG) from 8.80 μm to 1.77 and 7.19 μm, respectively. Ultrasound-induced cavitation disrupted YG aggregates to a coarse appearance and exposed internal structure. Alkali penetrated into YG particles and broke the YG aggregates into a flake-like morphology by cleaving the linkages within YG chains. Both pretreatments facilitated enzymolysis by enlarging the YG surface area and increased the WSYG yield to 32.3% and 36.2%, respectively. Meanwhile, the purity of WSYG reached 98.8% after zymoprotein removal by DEAE-Sepharose fast flow column. This work not only provides a green method for producing high-purity and high-yield WSYG, but also reveals the mechanisms of ultrasound and alkali pretreatments for improving enzymolysis efficiency by loosening the YG structure and increasing the surface area.
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Affiliation(s)
- Zhaomin Zheng
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Qilin Huang
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Xiaogang Luo
- School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, Wuhan 430073, Hubei, China
| | - Yidong Xiao
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenfei Cai
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
| | - Huiyu Ma
- College of Food Science and Technology, and MOE Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Wuhan 430070, China
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31
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Advanced analysis of polysaccharides, novel functional components in food and medicine dual purposes Chinese herbs. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2017.06.006] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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