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Zaman M, Akhtar F, Baseer A, Hasan SMF, Aman W, Khan A, Badshah M, Majeedullah . Formulation development and in-vitro evaluation of gastroretentive drug delivery system of loxoprofen sodium: A natural excipients based approach. Pak J Pharm Sci 2021; 34:57-63. [PMID: 34248003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The limitations of conventional type delivery systems to retain drug (s) in the stomach has resulted in the development of novel gastroretentive drug delivery system. We developed single-layer effervescent floating tablets of loxoprofen sodium for prolong delivery in the stomach using natural polymers xanthan gum, guar gum and semisynthetic polymer HPMCK4M. All the formulations (F1-F9) were developed by varying concentrations of xanthan gum and HPMCK4M while guar gum concentration was kept constant. Two gas generating agent (s) incorporated were sodium bicarbonate and citric acid. All compendial pre and post-compression tests results were in the acceptable limits. FTIR analysis confirmed drug-polymer compatibility. The in-vitro drug release in simulated conditions i.e., 0.1 N HCl for 12 h revealed orderly increase in total floating time, i.e., less than 6 h for F1 over 12 h for F9. Formulations F1 to F4 were not capable to retard drug release up to 12 h, whereas F5-F7 for 12 h, while F8 and F9 for more than 12 h. Data fitting in various kinetic models showed that drug release best fit in first order kinetic model and F9 in zero order. Based on results data, F7 was the best among all.
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Affiliation(s)
- Muhammad Zaman
- Faculty of Pharmacy, University of Central Punjab, Lahore, Pakistan
| | - Faiza Akhtar
- Faculty of Pharmacy, University of Lahore, Lahore, Pakistan
| | - Abdul Baseer
- Department of Pharmacy, Abasyn University Peshawar, Pakistan
| | - Syed Muhammad Farid Hasan
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, Pakistan
| | - Waqar Aman
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan
| | - Amjad Khan
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan
| | - Munair Badshah
- Islam college of Pharmacy, Pasrur Road, Sialkot, Punjab Pakistan
| | - - Majeedullah
- Department of Pharmacy, Kohat University of Science and Technology, Kohat, Pakistan
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Qin X, Li R, Zhu S, Hu J, Zeng X, Zhang X, Xu H, Kong W, Liang J, Zhang H, Zhang J, Wang J. A comparative study of sulfated tara gum: RSM optimization and structural characterization. Int J Biol Macromol 2020; 150:189-199. [PMID: 32050084 DOI: 10.1016/j.ijbiomac.2020.02.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 02/03/2020] [Accepted: 02/04/2020] [Indexed: 02/01/2023]
Abstract
Interest in galactomannans and its derivatives as a functional health supplement is growing based on physicochemical properties. In this work, the optimized conditions of sulfated tara gum (STG) with a maximum DS of 0.66 by box-behnken design (BBD) were obtained as following: ratio of chlorosulfonic acid/pyridine 3:1, reaction time 4 h and reaction temperature 40 °C. The structure features of STG such as the degree of substitution (DS), substitution position, weight average molar mass (MW), monosaccharide components and chain conformation were investigated. Decreasing of MW, the increasing of Z-average radius of gyration (〈S2〉Z1/2) and specific volume for gyration (SVg) were obtained by SEC-MALLS. In addition, the structural properties of four sulfated galactomannans were comparatively investigated and analyzed based on our earlier reports of sulfated fenugreek gum, guar gum and locust bean gum. A conclusion was drown that higher galactose branch could enhance steric hindrance, which was inferred as one of the significant factors for the derivatization efficiency, thus affecting the DS, MW and conformational transition of sulfated galactomannans. This study will provide valuable information for further research on the comparison of bioactivities and medical application of galactomannans family.
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Affiliation(s)
- Xiaojie Qin
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Rui Li
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Shengyong Zhu
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Jiahuan Hu
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Xiaorong Zeng
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Xiaoyue Zhang
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Hairong Xu
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Weibao Kong
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China; Bioactive Products Engineering Research Center For Gansu Distinctive Plants, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Junyu Liang
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China; Bioactive Products Engineering Research Center For Gansu Distinctive Plants, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Hui Zhang
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China; Bioactive Products Engineering Research Center For Gansu Distinctive Plants, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Ji Zhang
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China; Bioactive Products Engineering Research Center For Gansu Distinctive Plants, Northwest Normal University, Lanzhou 730070, People's Republic of China
| | - Junlong Wang
- College of Life Science, Northwest Normal University, Lanzhou 730070, People's Republic of China; Bioactive Products Engineering Research Center For Gansu Distinctive Plants, Northwest Normal University, Lanzhou 730070, People's Republic of China.
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Balu S, Palanisamy S, Velusamy V, Yang TCK. Sonochemical synthesis of gum guar biopolymer stabilized copper oxide on exfoliated graphite: Application for enhanced electrochemical detection of H 2O 2 in milk and pharmaceutical samples. Ultrason Sonochem 2019; 56:254-263. [PMID: 31101261 DOI: 10.1016/j.ultsonch.2019.04.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/07/2019] [Accepted: 04/10/2019] [Indexed: 05/10/2023]
Abstract
A novel and cost-effective synthesis of biopolymer-based organic and inorganic composite materials have received substantial attention in a broad range application including electroanalysis of small molecules. In this perspective, we report the synthesis of gum guar (guar) biopolymer stabilized cupric oxide decorated on exfoliated graphite (GR-guar/CuO) composite. Different physicochemical characterization methods were used to confirm the successful exfoliation of graphite and formation of the GR-guar/CuO composite. A simple sonochemical method has been used for the preparation of guar stabilized exfoliated graphite (GR-guar). The flower-like CuO on GR-guar and guar stabilized CuO (CuO-guar) composites were synthesized using a hydrothermal method. Cyclic voltammetric studies revealed that the GR-guar/CuO composite modified screen-printed carbon electrode (SPCE) had enhanced electro-reduction ability towards H2O2 than GR-guar and pristine graphite/CuO-guar modified SPCEs. Under optimized experimental conditions, the GR-guar/CuO composite modified electrode detects H2O2 in the response ranges from 0.02 to 1296.6 µM. The sensor shows a lower detection limit of 5.8 nM with high sensitivity. The as-prepared GR-guar/CuO composite sensor is highly reproducible and had excellent selectivity and practicality towards the detection of H2O2. Consequently, the fabricated sensor can be used for the accurate detection of H2O2 in real samples.
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Affiliation(s)
- Sridharan Balu
- Department of Chemical Engineering & Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei City, Taiwan
| | - Selvakumar Palanisamy
- Department of Chemical Engineering & Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei City, Taiwan; Division of Electrical and Electronic Engineering, School of Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom.
| | - Vijaylakshmi Velusamy
- Division of Electrical and Electronic Engineering, School of Engineering, Manchester Metropolitan University, Chester Street, Manchester M1 5GD, United Kingdom.
| | - Thomas C K Yang
- Department of Chemical Engineering & Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei City, Taiwan.
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Wan X, Guo C, Feng J, Yu T, Chai XS, Chen G, Xie WQ. Determination of the Degree of Substitution of Cationic Guar Gum by Headspace-Based Gas Chromatography during Its Synthesis. J Agric Food Chem 2017; 65:7012-7016. [PMID: 28749661 DOI: 10.1021/acs.jafc.7b03144] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
This study reports on a headspace-based gas chromatography (HS-GC) technique for determining the degree of substitution (DS) of cationic guar gum during the synthesis process. The method is based on the determination of 2,3-epoxypropyltrimethylammonium chloride in the process medium. After a modest pretreatment procedure, the sample was added to a headspace vial containing bicarbonate solution for measurement of evolved CO2 by HS-GC. The results showed that the method had a good precision (relative standard deviation of <3.60%) and accuracy for the 2,3-epoxypropyltrimethylammonium chloride measurement, with recoveries in the range of 96-102%, matching with the data obtained by a reference method, and were within 12% of the values obtained by the more arduous Kjeldahl method for the calculated DS of cationic guar gum. The HS-GC method requires only a small volume of sample and, thus, is suitable for determining the DS of cationic guar gum in laboratory-scale process-related applications.
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Affiliation(s)
- Xiaofang Wan
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
| | - Congbao Guo
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
| | - Jiarui Feng
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
| | - Teng Yu
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
| | - Xin-Sheng Chai
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
| | - Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
| | - Wei-Qi Xie
- State Key Laboratory of Pulp and Paper Engineering and ‡School of Materials Science and Engineering, South China University of Technology , Guangzhou, Guangdong 510640, People's Republic of China
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Chakravorty A, Barman G, Mukherjee S, Sa B. Effect of carboxymethylation on rheological and drug release characteristics of locust bean gum matrix tablets. Carbohydr Polym 2016; 144:50-8. [PMID: 27083792 DOI: 10.1016/j.carbpol.2016.02.010] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Revised: 12/14/2015] [Accepted: 02/02/2016] [Indexed: 01/03/2023]
Abstract
This study was undertaken to investigate correlation between the carboxymethylation-induced rheological changes and drug release characteristics of locust bean gum (LBG) matrix tablets. LBG was derivatized to carboxymethyl LBG (CMLBG) and characterized by (13)C NMR, FTIR and elemental analyses. Rheological studies revealed that LBG, in contact with water, produced a strong elastic gel which swelled less due to lower penetration of water resulting in slower drug release. On the other hand, CMLBG formed a viscous polymer solution through which higher influx of water resulted in rapid swelling of the matrix and faster drug release. Although the release from a particular matrix was dependent on drugs' solubilities, CMLBG matrix tablet produced faster release of all the drugs than LBG matrix tablets. In conclusion, rheological study appeared to be an useful tool to predict release of drugs from polysaccharide matrix tablets.
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Affiliation(s)
- Amrita Chakravorty
- Division of Pharmaceutics, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India.
| | - Gouranga Barman
- Division of Pharmaceutics, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India.
| | - Sudipta Mukherjee
- Division of Pharmaceutics, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India.
| | - Biswanath Sa
- Division of Pharmaceutics, Department of Pharmaceutical Technology, Jadavpur University, Kolkata 700032, West Bengal, India.
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Préchoux A, Genicot S, Rogniaux H, Helbert W. Enzyme-Assisted Preparation of Furcellaran-Like κ-/β-Carrageenan. Mar Biotechnol (NY) 2016; 18:133-143. [PMID: 26585588 DOI: 10.1007/s10126-015-9675-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 10/19/2015] [Indexed: 06/05/2023]
Abstract
Carrageenans are sulfated galactans that are widely used in industrial applications for their thickening and gelling properties, which vary according to the amount and distribution of ester sulfate groups along the galactan backbone. To determine and direct the sulfation of κ-carrageenan moieties, we purified an endo-κ-carrageenan sulfatase (Q15XH1 accession in UniprotKB) from Pseudoalteromonas atlantica T6c extracts. Based on sequence analyses and exploration of the genomic environment of Q15XH1, we discovered and characterized a second endo-κ-carrageenan sulfatase (Q15XG7 accession in UniprotKB). Both enzymes convert κ-carrageenan into a hybrid, furcellaran-like κ-/β-carrageenan. We compared the protein sequences of these two new κ-carrageenan sulfatases and that of a previously reported ι-carrageenan sulfatase with other predicted sulfatases in the P. atlantica genome, revealing the existence of additional new carrageenan sulfatases.
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Affiliation(s)
- Aurélie Préchoux
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, 29680, Roscoff, France
- CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, 29680, Roscoff, France
| | - Sabine Genicot
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, 29680, Roscoff, France
- CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, 29680, Roscoff, France
| | - Hélène Rogniaux
- INRA, Biopolymers Interactions Assemblies, 44316, Nantes, France
| | - William Helbert
- Sorbonne Universités, UPMC Univ Paris 06, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, 29680, Roscoff, France.
- CNRS, UMR 8227, Integrative Biology of Marine Models, Station Biologique de Roscoff, 29680, Roscoff, France.
- Centre de Recherches sur les Macromolécules Végétales (CERMAV, UPR-CNRS 5301), Affiliated with the Université Joseph Fourier (UJF), BP53, 38041, Grenoble Cedex 9, France.
- Institut de Chimie Moléculaire de Grenoble (ICMG, FR-CNRS 2607), Grenoble Cedex 9, France.
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