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Kaur G, Kumar A, Kurl S, Mittal N, Malik DS, Bassi P, Singh T, Khan AA, Alanazi AM, Kaur G. Leucaena leucocephala succinate based polyelectrolyte complexes for colon delivery of synbiotic in management of inflammatory bowel disease. Heliyon 2024; 10:e29429. [PMID: 38628770 PMCID: PMC11017066 DOI: 10.1016/j.heliyon.2024.e29429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 03/17/2024] [Accepted: 04/08/2024] [Indexed: 04/19/2024] Open
Abstract
Polyelectrolyte complexes (PECs) formed by the interaction between oppositely charged polymers have emerged as promising carriers for accomplishing colon-specific release. In this study, we have explored the potential of polyelectrolyte complexes between a succinate derivative of Leucaena leucocephala galactomannan and cationic guar gum for colon delivery of synbiotic. The PECs were prepared using a polyelectrolyte complexation method and characterized. The PECs exhibited excellent stability, with high encapsulation efficiency for both probiotics (95.53 %) and prebiotics (83.33 %). In vitro studies demonstrated enhanced survivability and proliferation of the encapsulated probiotics in the presence of prebiotics (93.29 %). The SEM images revealed a smooth and firm structure with reduced number of pores when both prebiotic and probiotic were encapsulated together. The treatment with synbiotic PECs in acetic acid induced IBD rats significantly relieves colitis symptoms as was evident from colon/body ratio, DAI score and histopathology studies. An increase in the protein and reduced glutathione levels and reduction in superoxide dismutase activity was observed in colitic rats that received synbiotic treatment as compared to colitic rats. Overall, this study highlights the potential of Leucaena leucocephala succinate-cationic guar gum PECs as a promising system for colon-specific synbiotic delivery, with implications for improved gut health and the treatment of various gastrointestinal disorders.
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Affiliation(s)
- Gaganpreet Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University Patiala, Punjab, 147002, India
| | - Aman Kumar
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University Patiala, Punjab, 147002, India
| | - Samridhi Kurl
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University Patiala, Punjab, 147002, India
| | - Neeraj Mittal
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
| | | | - Pallavi Bassi
- Chitkara College of Pharmacy, Chitkara University, Punjab, 140401, India
| | - Tanveer Singh
- Department of Neuroscience and Experimental Therapeutics, Medical Research, College of Medicine, Bryan, 77807, USA
| | - Azmat Ali Khan
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Amer M. Alanazi
- Pharmaceutical Biotechnology Laboratory, Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh, 11451, Saudi Arabia
| | - Gurpreet Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University Patiala, Punjab, 147002, India
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Elangovan SM, Muthu Kumar S, Sindhu V, Mahendiran B, Muthusamy S, Krishnakumar GS. Extraction, characterization and biological activity of Galactomannan rich endosperm of Borassus flabellifer (Linn.) suitable for biofabrication of tissue scaffolds. Int J Biol Macromol 2023; 251:126397. [PMID: 37597640 DOI: 10.1016/j.ijbiomac.2023.126397] [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: 03/16/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 08/21/2023]
Abstract
The study deals with the isolation, purification and characterization of galactomannan from the endosperm of Borassus labellifer (Linn.) to be used for biomaterial fabrication in tissue engineering (TE) applications. The isolated Borassus flabellifer (Linn.) galactomannan (BFG) through a sequential aqueous dissolution, centrifugation and ethanol precipitation presented a total yield of 19.77 ± 1.05 % (w/w) with advantageous compositional and functional properties. BFG was found to have mannose to galactose (M/G) ratio of 1.4:1. The molecular weight of BFG was found to be 4.9 × 105 g/mol and the molecular structure analysis by FTIR and NMR spectroscopy revealed the presence of α-linked, d-galactopyranose units and β-linked, D-mannopyranose units. Further characterization by rheometer confirmed the non-Newtonian and pseudo-plastic behavior of different BFG concentrations and structural analysis by XRD and SEM confirmed the amorphous nature of BFG with the presence of pores and cervices on the rough surface. Finally, the favorable biological activity demonstrated in response to fibroblast cells against different BFG concentrations substantiates its relevance to be used in biofabrication of tissue scaffolds.
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Affiliation(s)
- Sinduja Malarkodi Elangovan
- Department of Biotechnology, Applied Biomaterials Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India; Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode, Tamil Nadu, India
| | - S Muthu Kumar
- Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode, Tamil Nadu, India
| | - V Sindhu
- Department of Biotechnology, Bannari Amman Institute of Technology, Sathyamangalam, Erode, Tamil Nadu, India
| | - Balaji Mahendiran
- Department of Biotechnology, Applied Biomaterials Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
| | - Shalini Muthusamy
- Department of Biotechnology, Applied Biomaterials Laboratory, PSG Institute of Advanced Studies, Coimbatore, Tamil Nadu, India
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Ma L, Chen T, Wu J, Li X, Wang J, Li W. The structure and in vitro antioxidant activity of carboxymethyl glucans. Nat Prod Res 2023; 37:3048-3064. [PMID: 36562541 DOI: 10.1080/14786419.2022.2146109] [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: 09/05/2022] [Accepted: 11/03/2022] [Indexed: 12/24/2022]
Abstract
In this study, a degree substitution of 0.796 was obtained through the process of carboxymethylation (CMG). Carboxymethyl glucans with three different molecular weights (CMG-A, CMG-B and CMG-C) were obtained using membrane separation technology. Structural characterization and in vitro antioxidant activity were also evaluated. As per the outcomes of infrared spectroscopy spectroscopy and Nuclear magnetic resonance studies, CMG-A, CMG-B, CMG-C and contained carboxyl methyl groups. The substitution order of carboxymethylation branched-chain was as follows: 6δ > 4δ > 2δ. Atomic Force Microscope images obtained from the analysis of dilute aqueous solution (0.1 mg/mL) showed that some of the structures in CMG-A, CMG-B and CMG-C, were triple-helical species coexisting with larger aggregates and single chains. In vitro antioxidant experiment shown that the CMG-C had the best antioxidant property, the half-inhibitory concentration of hydroxyl radical scavenging, iron chelation and ABTS scavenging were 0.319, 0.168 and 1.344 mg/mL, respectively.
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Affiliation(s)
- Liang Ma
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province, China
| | - Ten Chen
- College of Life Sciences, Northwest Normal University, Lanzhou, Gansu Province, China
| | - Jiaxin Wu
- School of Pharmacy Lanzhou University, Lanzhou University, Lanzhou, Gansu Province, China
| | - Xin Li
- Environmental and Applied Microbiology Key Laboratory, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, province, China
| | - Jie Wang
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province, China
| | - Wenjian Li
- Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou, Gansu Province, China
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Zhu Z, Song X, Yao J, Li Z, Jiang Y, Yu Q, Huang Z, Liu H, Xiao Y, Dai F. Structural characteristics, functional properties, antioxidant and hypoglycemic activities of pectins from feijoa (Acca sellowiana) peel. Food Chem 2023; 428:136819. [PMID: 37437357 DOI: 10.1016/j.foodchem.2023.136819] [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: 02/27/2023] [Revised: 06/27/2023] [Accepted: 07/03/2023] [Indexed: 07/14/2023]
Abstract
The structure characteristics, functional properties, antioxidant and hypoglycemic activities of pectins extracted from feijoa peel with water (FP-W), acid (FP-A) and alkali (FP-B) were investigated. Results showed that the feijoa peel pectins (FPs) were mainly composed of galacturonic acid, arabinose, galactose and rhamnose. FP-W and FP-A had higher proportion of homogalacturonan domain, degree of esterification and molecular weight (for main component) than FP-B; FP-B owned the highest yield, protein and polyphenol contents. FP-W had a compact and smooth surface morphology unlike FP-A and FP-B. FP-W and FP-A had better thermal stability than FP-B. The rheological analysis suggested that the FPs exhibited pseudoplastic fluid behavior, and the elastic characteristics were dominant. Results showed that FP-W and FP-B had superior antioxidant and hypoglycemic activities than FP-A. According to correlation analysis, monosaccharide composition, sugar ratios and degree of acetylation were chief factors affecting the functional properties, antioxidant and hypoglycemic activities of the FPs.
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Affiliation(s)
- Zuoyi Zhu
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China
| | - Xinyue Song
- College of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, China
| | - Jiarong Yao
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China
| | - Zhen Li
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China
| | - Yunzhu Jiang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China
| | - Qing Yu
- Shulian Ecological Co., Ltd., 311215 Hangzhou, China
| | - Zhongping Huang
- College of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, China
| | - Huijun Liu
- College of Chemical Engineering, Zhejiang University of Technology, 310014 Hangzhou, China.
| | - Yingping Xiao
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China.
| | - Fen Dai
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, 310021 Hangzhou, China.
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Ebada D, Hefnawy HT, Gomaa A, Alghamdi AM, Alharbi AA, Almuhayawi MS, Alharbi MT, Awad A, Al Jaouni SK, Selim S, Eldeeb GS, Namir M. Characterization of Delonix regia Flowers’ Pigment and Polysaccharides: Evaluating Their Antibacterial, Anticancer, and Antioxidant Activities and Their Application as a Natural Colorant and Sweetener in Beverages. Molecules 2023; 28:molecules28073243. [PMID: 37050006 PMCID: PMC10096959 DOI: 10.3390/molecules28073243] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Revised: 03/29/2023] [Accepted: 03/30/2023] [Indexed: 04/08/2023] Open
Abstract
In the present study, an attempt was made to investigate the in vitro antioxidant, anticancer, and antibacterial activities of Delonix regia, then in vivo evaluate its safety as a natural colorant and sweetener in beverages compared to synthetic colorant and sweetener in rats, then serve the beverages for sensory evaluation. Delonix regia flowers had high protein, polysaccharide, Ca, Na, Mg, K, and Fe contents. The Delonix regia pigment extract (DRPE) polysaccharides were separated and purified by gel permeation chromatography on Sephacryl S-200, characterized by rich polysaccharides (13.6 g/L). The HPLC sugar profile detected the monosaccharides in the extracted polysaccharides, composed of mannose, galactose, glucose, arabinose, and gluconic acid, and the structure of saccharides was confirmed by FTIR, which showed three active groups: carbonyl, hydrocarbon, and hydroxyl. On the other hand, the red pigment constituents of DRPE were detected by HPLC; the main compounds were delphinidin and cyanidin at 15 µg/mL. The DRPE contained a considerable amount (26.33 mg/g) of anthocyanins, phenolic compounds (64.7 mg/g), and flavonoids (10.30 mg/g), thus influencing the antioxidant activity of the DRPE, which scavenged 92% of DPPH free radicals. Additionally, it inhibited the population of pathogenic bacteria, including Staphylococcus aureus, Listeria monocyogenes, Salmonella typhimurum, and Pseudomonas aeruginosa, in the range of 30–90 μg/mL, in addition to inhibiting 85% of pancreatic cancer cell lines. On the in vivo level, the rats that were delivered a diet containing DRPE showed regular liver markers (AST, ALP, and ALT); kidney markers (urea and creatinine); high TP, TA, and GSH; and low MDA, while rats treated with synthetic dye and aspartame showed higher liver and kidney markers; lowered TP, TA, and GSH; and high MDA. After proving the safety of DRPE, it can be safely added to strawberry beverages. Significant sensorial traits, enhanced red color, and taste characterize the strawberry beverages supplemented with DRPE. The lightness and redness of strawberries were enhanced, and the color change ΔE values in DRPE-supplemented beverages ranged from 1.1 to 1.35 compared to 1.69 in controls, indicating the preservative role of DRPE on color. So, including DRPE in food formulation as a natural colorant and sweetener is recommended for preserving health and the environment.
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Affiliation(s)
- Doaa Ebada
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Hefnawy T. Hefnawy
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Ayman Gomaa
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Amira M. Alghamdi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Asmaa Ali Alharbi
- Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed S. Almuhayawi
- Department of Clinical Microbiology and Immunology, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohanned Talal Alharbi
- Department of Medical Microbiology and Parasitology, Faculty of Medicine, University of Jeddah, Jeddah 21589, Saudi Arabia
| | - Ahmed Awad
- Biochemistry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
| | - Soad K. Al Jaouni
- Department of Hematology/Oncology, Yousef Abdulatif Jameel Scientific Chair of Prophetic Medicine Application, Faculty of Medicine, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Samy Selim
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakaka 72388, Saudi Arabia
| | - Gehad S. Eldeeb
- Food Technology Department, Faculty of Agriculture, Suez Canal University, Ismailia 41511, Egypt
| | - Mohammad Namir
- Department of Food Science, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt
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6
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Xu W, Han M, Liu Y, Zhu Y, Zhang F, Lei F, Wang K, Ji L, Jiang J. Changes in structure and physicochemical properties of Sophora japonica f. pendula galactomannan in late growth stage. Carbohydr Polym 2023; 304:120496. [PMID: 36641164 DOI: 10.1016/j.carbpol.2022.120496] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 12/07/2022] [Accepted: 12/20/2022] [Indexed: 12/25/2022]
Abstract
Galactomannan (GM) has been widely applied in food and other fields due to its appealing physicochemical properties. In this work, considering the changes in structural and physicochemical properties of Sophora japonica f. pendula (SJ-GM) with very high mannose to galactose (M/G) ratio in the late deposition stage, extensive exploration is conducted. The core of structural change is the change of M/G ratio (4.94-5.68), which is caused by the loss of galactose side residues modulated by α-d-galactosidase during seed maturation. Afterwards, the more compact conformation, the higher molecular weight, the increased hydrophobicity, and the greater solution viscosity of SJ-GM can be caused. Notably, the gel strength of SJ-GM with the highest M/G surpasses other GMs, including fenugreek gum (M/G = 1.20), guar gum (M/G = 1.80), Gleditsia microphylla gum (M/G = 2.77), and LBG (M/G = 4.00). Finally, SJ-GM is proven to be an attractive alternative to other GMs.
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Affiliation(s)
- Wei Xu
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Species (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Minghui Han
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Species (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Yantao Liu
- Glyn O. Phillips Hydrocolloid Research Centre, Food Hydrocolloid International Science and Technology Cooperation Base of Hubei Province, National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering (Ministry of Education), Key Laboratory of Industrial Microbiology in Hubei, Department of Bioengineering and Food Science, Hubei University of Technology, Wuhan 430068, China
| | - Yana Zhu
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Species (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Fenglun Zhang
- Nanjing Institute for the Comprehensive Utilization of Wild Plants, Nanjing 210042, China
| | - Fuhou Lei
- Guangxi Key Laboratory of Chemistry and Engineering of Forest Products, College of Chemistry and Chemical Engineering, Guangxi University for Nationalities, Nanning 530006, China
| | - Kun Wang
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Species (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Li Ji
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Species (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China
| | - Jianxin Jiang
- Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Species (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, China.
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7
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Niknam R, Mousavi M, Kiani H. A new source of galactomannan isolated from
Gleditsia caspica
(Persian honey locust) seeds: Extraction and comprehensive characterization. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15774] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Rasoul Niknam
- Bioprocessing and Biodetection Lab (BBL) Department of Food Science and Technology College of Agriculture and Natural Resources University of Tehran Karaj Iran
| | - Mohammad Mousavi
- Department of Food Science and Technology College of Agriculture and Natural Resources University of Tehran Karaj Iran
| | - Hossein Kiani
- Bioprocessing and Biodetection Lab (BBL) Department of Food Science and Technology College of Agriculture and Natural Resources University of Tehran Karaj Iran
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8
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Intrinsic viscosity, steady and oscillatory shear rheology of a new source of galactomannan isolated from Gleditsia caspica (Persian honey locust) seeds in aqueous dispersions. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03818-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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9
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Carvalho R, Pedrosa C, Leal A, Palermo L, Mansur C. Extraction, characterization and rheological behavior of galactomannans in high salinity and temperature conditions. INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION 2021. [DOI: 10.1080/1023666x.2021.1930748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Raíssa Carvalho
- Laboratório de Macromoléculas e Colóides na Indústria de Petróleo, Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Engenharia Metalúrgica e de Materiais-PEMM/COPPE, Universidade Federal do Rio de Janeiro, Brazil
| | - Carolina Pedrosa
- Laboratório de Macromoléculas e Colóides na Indústria de Petróleo, Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Alyce Leal
- Laboratório de Macromoléculas e Colóides na Indústria de Petróleo, Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Luiz Palermo
- Laboratório de Macromoléculas e Colóides na Indústria de Petróleo, Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Claudia Mansur
- Laboratório de Macromoléculas e Colóides na Indústria de Petróleo, Instituto de Macromoléculas, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
- Programa de Engenharia Metalúrgica e de Materiais-PEMM/COPPE, Universidade Federal do Rio de Janeiro, Brazil
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Kaur J, Mehta V, Kaur G. Preparation, development and characterization of Leucaena leucocephala galactomannan (LLG) conjugated sinapic acid: A potential colon targeted prodrug. Int J Biol Macromol 2021; 178:29-40. [PMID: 33631267 DOI: 10.1016/j.ijbiomac.2021.02.132] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 02/17/2021] [Accepted: 02/17/2021] [Indexed: 11/28/2022]
Abstract
Sinapic acid (SA), a widely prevalent hydroxycinnamic acid, possess numerous biological activities owing to its antioxidant property. The present study was aimed to prepare colon targeted polysaccharidic/polymeric ester prodrug of SA (a microbially triggered system) using Leucaena leucocephala galactomannan (LLG) as a polysaccharidic carrier. The polymeric conjugates of SA-LLG were found to exhibit an increase in % yield and DS with increase in amount of SA and volume of thionyl chloride. The degree of depolymerization of SA-LLG prodrug batches were evaluated using optimized concentration of galactomannase. The SA-LLG prodrug was characterized employing UV and FTIR spectroscopy, 1H NMR and XRD. In vitro release study of the optimized prodrug batch (SL10) suggested stable nature of SA-LLG conjugate under acidic (pH 1.2) and alkaline conditions (pH 6.8). The treatment of prodrug with galactomannase (15 mg/mL) followed by esterase (10 U/mL) enzyme released approximately 81% of SA after 24 h. The cell viability results revealed that free SA and SA-LLG were found to have similar antiproliferative potential against human colon cancer cell lines (HCT-116 cells). Our investigation revealed that polysaccharidic prodrug, SA-LLG, has the potential for colon targeting of SA and thus can be employed for the treatment of Inflammatory Bowel Diseases (IBDs).
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Affiliation(s)
- Jasleen Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India
| | - Vikrant Mehta
- Laboratory of Molecular Medicine, Department of Human Genetics and Molecular Medicine, Central University of Punjab, Bathinda, India
| | - Gurpreet Kaur
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala, India.
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11
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Isolation, physical, structural characterization and in vitro prebiotic activity of a galactomannan extracted from endosperm splits of Chinese Sesbania cannabina seeds. Int J Biol Macromol 2020; 162:1217-1226. [PMID: 32574735 DOI: 10.1016/j.ijbiomac.2020.06.177] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 06/14/2020] [Accepted: 06/18/2020] [Indexed: 02/06/2023]
Abstract
The purpose of this study was to identify and determine the physical and structural characterization of the water-soluble galactomannan extracted from endosperm splits of Chinese S. cannabina seeds. The Sesbania galactomannan (SP) was extracted and purified using a novel method with a high yield (40.3 ± 7.2%). The molecular structure of SP was determined by monosaccharide composition, FTIR and NMR spectroscopy. The structural data showed that SP was galactomannan which composed by a β-(1/4)-linked mannose backbone with galactopyranosyl residues attached through α-(1/6) linkages. The constant mannose/galactose (M/G) ratio and average molecular weight (Mw) of SP was 1.6:1 and 2.16 × 105 g/mol, respectively. The physical results revealed that SP had many branches on the backbone and existed as a random coil state in aqueous solution. SP was a good biopolymer which had smooth and clearer surface with homogeneous composition, and had some degree of crystallinity and prebiotic activity. As a consequence, SP could be a potential prebiotic and was expected to be suitable for applications in food, pharmaceutical, biomedical or cosmetic industries as a promising new biomaterial.
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12
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Mittal N, Kaur G. Leucaena leucocephala (Lam.) galactomannan nanoparticles: Optimization and characterization for ocular delivery in glaucoma treatment. Int J Biol Macromol 2019; 139:1252-1262. [DOI: 10.1016/j.ijbiomac.2019.08.107] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Revised: 07/31/2019] [Accepted: 08/12/2019] [Indexed: 02/07/2023]
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13
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Investigations on Polymeric Nanoparticles for Ocular Delivery. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/1316249] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
In the present investigation, an attempt was made to formulate timolol maleate (TML) loaded polymeric nanoparticles of flax seed gum (FX) and chitosan (CH) for ocular delivery using ionic gelation method. The process of nanoparticle preparation was optimized using 2-factor, 3-level central composite experimental design. The optimal concentration of FX and CH that yielded nanoparticles with minimum particle size (267.06 ± 8.65 nm) and maximum encapsulation efficiency (74.96 ± 4.78%) was found to be 0.10% w/v and 0.08% w/v, respectively. The formulated nanoparticles revealed considerable bioadhesive strength and exhibited sustained release of drug in in vitro diffusion studies. The ex vivo transcorneal penetration study revealed higher corneal penetration of TML compared to marketed eye drops. The confocal scanning laser microscopy (CSLM) studies also confirmed the ability of nanoparticles to penetrate into deeper layers of cornea. The histopathological studies revealed corneal biocompatibility of nanoparticles. The nanoparticles were found to reduce the intra ocular pressure (IOP) in rabbits for prolonged period when compared to conventional eye drops. The results of the present study suggested a promising role of polymeric nanoparticles for ocular drug delivery in treatment of glaucoma.
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14
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Fungal Exocellular (1-6)-β-d-glucan: Carboxymethylation, Characterization, and Antioxidant Activity. Int J Mol Sci 2019; 20:ijms20092337. [PMID: 31083511 PMCID: PMC6539860 DOI: 10.3390/ijms20092337] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 04/23/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022] Open
Abstract
Exocellular (1→6)-β-d-glucan (lasiodiplodan) produced by the fungus Lasiodiplodia theobromae MMPI was derivatized by carboxymethylation using different concentrations of a derivatizing agent. Lasiodiplodan was derivatized by carboxymethylation in an attempt to increase its solubility and enhance its biological activities. Carboxymethylglucans with degrees of substitution (DS) of 0.32, 0.47, 0.51, 0.58, and 0.68 were produced and characterized. FTIR analysis showed a band of strong intensity at 1600 cm−1 and an absorption band at 1421 cm−1, resulting from asymmetric and symmetrical stretching vibrations, respectively, of the carboxymethyl group COO- in the carboxymethylated samples. Thermal analysis showed that native lasiodiplodan (LN) and carboxymethylated derivatives (LC) exhibited thermal stability up to 200–210 °C. X-ray diffractometry demonstrated that both native and carboxymethylated lasiodiplodan presented predominantly an amorphous nature. Scanning electron microscopy revealed that carboxymethylation promoted morphological changes in the biopolymer and increased porosity, and alveolar structures were observed along the surface. The introduction of carboxymethyl groups in the macromolecule promoted increased solubility and potentiated the hydroxyl radical-scavenging activity, suggesting a correlation between degree of substitution and antioxidant activity.
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Yi N, Cheng Z, Yang L, Edelman G, Xue C, Ma Y, Zhu H, Cheng H. Fully Water-Soluble, High-Performance Transient Sensors on a Versatile Galactomannan Substrate Derived from the Endosperm. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36664-36674. [PMID: 30261722 DOI: 10.1021/acsami.8b11682] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Green electronics on biodegradable substrates from natural sources have gained broad interest because of the advantages of being biodegradable, recyclable, sustainable, and cost-efficient. This study presents a low-cost, yet simple extraction and purification method that explores aqueous extraction and precipitation with ethanol for the synthesis of galactomannan films. In salient contrast to the other materials of natural origin, the process to obtain galactomannan films is energy efficient and environmentally friendly. As an alternative biodegradable material, galactomannan has direct relevance to the recent emerging biodegradable or transient electronics. The galactomannan substrate with temperature sensors and electrodes fabricated from zinc, a biodegradable material noted for its essential biological function, demonstrates a high-precision measurement of temperature and high-fidelity monitoring of electrophysiological signals (electromyogram or electrocardiogram). The resulting disposable sensors disappear without a trace in water and produce environmentally benign end products that could even be used for alkaline soil amendments. The set of materials explored in this study is also stable in organic solutions, enabling solvent-based fabrication that may be combined with recent advances in additive manufacturing techniques for a novel manufacturing method.
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Affiliation(s)
| | - Zheng Cheng
- Department of Mechanical and Industrial Engineering , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Lei Yang
- Department of Mechanical and Industrial Engineering , Northeastern University , Boston , Massachusetts 02115 , United States
| | | | - Cuili Xue
- School of Precision Instrument and Optoelectronics Engineering , Tianjin University , Tianjin 300072 , China
| | - Yi Ma
- Department of Mechanical and Industrial Engineering , Northeastern University , Boston , Massachusetts 02115 , United States
| | - Hongli Zhu
- Department of Mechanical and Industrial Engineering , Northeastern University , Boston , Massachusetts 02115 , United States
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Biopolymer from Adenanthera pavonina L. Seeds: Characterization, Photostability, Antioxidant Activity, and Biotoxicity Evaluation. INT J POLYM SCI 2018. [DOI: 10.1155/2018/1385830] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Plant polysaccharides have been increasingly employed in the pharmaceutical, industrial, and food environments due to their versatile functional properties. In the present investigation, a heteropolysaccharide galactomannan (GAP) was extracted from Adenanthera pavonina L. seeds and characterized by physicochemical analyses to determine its thermal properties, photostability, antioxidant activity, and acute toxicity. GAP was characterized by FTIR, DSC, and TG. The photostability of GAP submitted to artificial UV irradiation was analyzed. Antioxidant activity was evaluated by the DPPH (2,2-diphenyl-1-1-picrylhydrazyl) free radical-scavenging method, while a bioassay method was carried out to study acute toxicity in Artemia salina L. Physical-chemical and functional characteristics of GAP support its potential role in the food and pharmaceutical industries. GAP was photostable under UV irradiation. In vitro GAP antioxidant evaluation showed that it bears free radical-scavenging activity for DPPH radicals. The median lethal concentration (LC50) of GAP was 239.4 mg∙mL−1, indicating that this biopolymer is nontoxic. Such results indicate that this biopolymer presents characteristics of neutrality, photostability, and nontoxicity that are commercially attractive.
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