scholarly journals Antibacterial Activity of Mucoadhesive Gastroretentive Drug Delivery System of Alginate Beads Containing Turmeric Extract - PVP Solid Dispersion

2019 ◽  
Vol 7 (22) ◽  
pp. 3868-3873
Author(s):  
Hakim Bangun ◽  
Anayanti Arianto ◽  
Yuni Sari Bangun ◽  
Marline Nainggolan
Keyword(s):  
Escherichia Coli ◽  
Drug Delivery ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Drug Delivery System ◽  
Delivery System ◽  
Solid Dispersion ◽  
Alginate Beads ◽  
Diffusion Method ◽  
Turmeric Extract

BACKGROUND: Turmeric extract is less effective because the main ingredient of curcumin has a low solubility. Therefore, it is necessary to convert turmeric extract into a solid dispersion form to increase the dissolution of curcumin. AIM: To determine the antibacterial activity of mucoadhesive gastroretentive drug delivery system of alginate beads containing solid dispersion of turmeric extract. METHODS: Turmeric powder was macerated with 96% ethanol for 8 days. The macerate was evaporated with a rotary evaporator at 50°C to obtain concentrated extract. Solid dispersion of turmeric extract was prepared by solvent method by using polyvinylpyrrolidone (PVP) K30 with a ratio of 1: 1 and 1: 2. The solid dispersion of turmeric extract was encapsulated with alginate gel by gelation method. The antibacterial of alginate beads containing solid dispersion of turmeric extract was tested by using hole agar plate diffusion method against Staphylococcus aureus and Escherichia coli as bacterial models. RESULTS: The size of alginate beads containing turmeric extract-PVP solid dispersion was about 1.3 mm. Antibacterial activity test against Staphylococcus aureus and Escherichia coli showed that alginate beads containing turmeric extract-PVP solid dispersion gave stronger antibacterial activity than those containing turmeric extract without solid dispersion. The antibacterial activity of alginate beads turmeric extract-PVP (1: 2) solid dispersion was stronger than those containing turmeric-extract (1: 1) solid dispersion. CONCLUSION: Based on the results of this study it can be concluded that alginate beads containing turmeric extract-PVP solid dispersion gives the stronger antibacterial activity than those containing turmeric extract without solid dispersion.

scholarly journals PREPARATION OF MUCOADHESIVE GASTRORETENTIVE DRUG DELIVERY SYSTEM OF ALGINATE BEADS CONTAINING TURMERIC EXTRACT AND ANTI-GASTRIC ULCER ACTIVITY

2019 ◽  
Vol 12 (1) ◽  
pp. 316
Author(s):  
Hakim Bangun ◽  
Fadlina Aulia ◽  
Anayanti Arianto ◽  
Marline Nainggolan
Keyword(s):  
Drug Delivery ◽  
Gastric Ulcer ◽  
Drug Delivery System ◽  
Delivery System ◽  
Alginate Beads ◽  
Male Rats ◽  
Gastric Lesions ◽  
Turmeric Extract ◽  
The Mean

Objectives: The objectives of this study were to prepare the mucoadhesive mucoadhesive gastroretentive drug delivery system of alginate beads containing turmeric extract and to evaluate its anti-gastric effect.Methods: Turmeric extract was made by macerating turmeric powder in ethanol 96% and evaporated using rotary evaporator at 50°C to obtained concentrated extract. Then, it was prepared alginate beads containing 5% turmeric extract by gelation method. The mucoadhesive properties of alginate beads containing turmeric extract were tested in vitro in male rats and the anti-gastric ulcer effect was tested on HCl-induced gastric ulcer in rats.Results: The mean diameter of alginate beads obtained was 1.13±0.19 mm. Bioadhesion test showed that alginate beads containing turmeric extract could be attached on gastric rats mucosa. Anti-gastric ulcer test showed that the healing of gastric lesions in rats was faster using alginate beads containing turmeric extract compared to untreated ones.Conclusions: The results of this study suggest that mucoadhesive drug delivery systems of alginate beads containing turmeric extract are potentially developed as an anti-gastric ulcer.

scholarly journals “Design and Synthesis of Some Cyclic Carbohydrates with Norfloxacin as Surface moiety. A Study of Sustained Relax of Drugs”.

2019 ◽  
Vol 35 (2) ◽  
pp. 577-590
Author(s):  
J. Dhevaraj ◽  
S. Vembu ◽  
S. Pazhamalai ◽  
M. Gopalakrishnan
Keyword(s):  
Escherichia Coli ◽  
Drug Delivery ◽  
Antibacterial Activity ◽  
Drug Delivery System ◽  
Delivery System ◽  
Synthetic Polymer ◽  
Hydroxyl Group ◽  
Standard Drug ◽  
Polymeric Structure ◽  
Uv Spectrometry

Biocompatible and biodegradable sustained drug delivery system has been constructed from reaction between norfloxacin and cyclodextrin through secondary amine of piperazine ring and hydroxyl group of the carbohydrate. Covalent bond polymeric structure is designed by the help of chloroacetyl chloride, target dendrimer formed by removing two hydrochloride molecules. The development of cyclodextrin core drug delivery system with twenty one norfloxacin surface moiety has been synthesized by only two steps. The synthesized polymeric structure was thoroughly studied by NMR, FT-IR, MALDI and UV- spectrometry. Sustained release assessment of synthetic polymer studied through different buffer solution by UV spectrometry and norfloxacin releases rate of synthetic polymer was controlled by the concentration and the experimental medium. The microbial assessments through kinetic studies by using Escherichia coli also reveal that the norfloxacin released possesses potential antimicrobial activity. Antibacterial activity of synthesized drug delivery system has been investigated with gram-negative and gram-positive species like Escherichia coli (mtcc 443), bacillus subtilis (mtcc 2063), pseudomonas (mtcc 741), staphylococcus (mtcc 737) and proteus mirabilis (mtcc 425). The hydrophobic and hydrophilic balance and the repeat drug unit of this synthesized system are responsible for effective antibacterial activity. The minimum inhibitor concentration values of this system are very small to 100 µg/mL-1, synthesized compound shown five times improved activity against organism on comparism with standard drug. The in-vitro release of norfloxacin from obtained dendrimer was investigated.

scholarly journals PREPARATION OF MUCOADHESIVE GASTRORETENTIVE DRUG DELIVERY SYSTEM OF ALGINATE BEADS CONTAINING TURMERIC EXTRACT AND ANTI-GASTRIC ULCER ACTIVITY

2019 ◽  
Vol 12 (1) ◽  
pp. 316
Author(s):  
Hakim Bangun ◽  
Fadlina Aulia ◽  
Anayanti Arianto ◽  
Marline Nainggolan
Keyword(s):  
Drug Delivery ◽  
Gastric Ulcer ◽  
Drug Delivery System ◽  
Delivery System ◽  
Alginate Beads ◽  
Male Rats ◽  
Gastric Lesions ◽  
Turmeric Extract ◽  
The Mean

Objectives: The objectives of this study were to prepare the mucoadhesive mucoadhesive gastroretentive drug delivery system of alginate beads containing turmeric extract and to evaluate its anti-gastric effect.Methods: Turmeric extract was made by macerating turmeric powder in ethanol 96% and evaporated using rotary evaporator at 50°C to obtained concentrated extract. Then, it was prepared alginate beads containing 5% turmeric extract by gelation method. The mucoadhesive properties of alginate beads containing turmeric extract were tested in vitro in male rats and the anti-gastric ulcer effect was tested on HCl-induced gastric ulcer in rats.Results: The mean diameter of alginate beads obtained was 1.13±0.19 mm. Bioadhesion test showed that alginate beads containing turmeric extract could be attached on gastric rats mucosa. Anti-gastric ulcer test showed that the healing of gastric lesions in rats was faster using alginate beads containing turmeric extract compared to untreated ones.Conclusions: The results of this study suggest that mucoadhesive drug delivery systems of alginate beads containing turmeric extract are potentially developed as an anti-gastric ulcer.

scholarly journals Aktivitas Antibakteri dan Antioksidan Asam Galat dari Kulit Buah Lokal yang Diproduksi dengan Tanase

2018 ◽  
Vol 14 (1) ◽  
pp. 148
Author(s):  
Eka Junaidi ◽  
Yunita Arian Sani Anwar
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antioxidant Activity ◽  
Antibacterial Activity ◽  
Gallic Acid ◽  
Diffusion Method ◽  
Syzygium Cumini ◽  
Garcinia Mangostana ◽  
Dpph Method ◽  
Fruit Waste

<p>Penelitian ini merupakan lanjutan dari penelitian sebelumnya tentang produksi asam galat dari limbah kulit buah lokal di Lombok. Limbah kulit buah lokal yang digunakan yaitu kulit buah kepundung (<em>Baccaurea racemosa</em> Muell.Arg), kulit buah juwet (<em>Syzygium cumini</em>), dan kulit buah manggis (<em>Garcinia mangostana</em>). Pada penelitian ini dilakukan pengujian asam galat yang dihasilkan, untuk mengetahui aktivitas antioksidan dan antibakteri. Pengujian sifat antioksidan dilakukan dengan menggunakan metode DPPH, sedangkan aktivitas antibakteri diuji dengan menggunakan metode difusi agar pada bakteri <em>Escherichia coli</em> dan <em>Staphylococcus aureus</em>. Hasil penelitian menunjukkan bahwa asam galat dari ketiga kulit buah memiliki aktivitas antioksidan. Asam galat dari kulit buah kepundung, kulit buah juwet dan kulit buah manggis memiliki IC<sub>50</sub> masing-masing sebesar 5.95; 5,96; dan 5,92 ppm. Berbeda dengan kemampuan sebagai antioksidan, asam galat resistan terhadap bakteri <em>Escherichia coli</em> dan <em>Staphylococcus aureus </em>yang menunjukkan bahwa asam galat tidak memiliki aktivitas sebagai antibakteri.</p><p><strong>Antibacterial and antioxidant activity of gallic acid from peel local fruit which produced by tannase. </strong>This research is a continuation of the previous research about the gallic acid production from peel fruit local in Lombok. The local fruit waste<em> </em>used<em> </em>are<em> kepundung rind (Baccaurea racemosa</em> Muell.Arg)<em>, juwet rind </em>(<em>Syzygium cumini</em>) <em>and mangosteen rind </em>(<em>Garcinia mangostana</em>)<em>. </em>In this research, the produced Gallic acid was tested to determine its antioxidant and antibacterial activity. The antioxidant test conducted by DPPH method, meanwhile, the antibacterial activity was performed by agar diffusion method to bacteria <em>Escherichia coli</em> and <em>Staphylococcus aureus</em>. The results show that the produce gallic acid from those three rind provide antioxidant activity. Gallic acid from kepundung rind, juwet rind, and mangosteen rind have IC<sub>50</sub> values of 5,95; 5,96; and 5,92,  respectively. Gallic acid not showed inhibitory actions against the growth of Escherichia coli and Staphylococcus aureus. This result show that gallic acid from local fruit waste did not provide an antibacterial activity.</p>

AKTIVITAS ANTIBAKTERI DAN ANALISIS KLT-BIOAUTOGRAFI DARI FRAKSI DAUN MANGGIS (Garcinia mangostana L.)

PHARMACON ◽  
2019 ◽  
Vol 8 (3) ◽  
pp. 525
Author(s):  
Ayu Natasya Paputungan ◽  
Widya Astuty Lolo ◽  
Imam Jayanto
Keyword(s):  
Escherichia Coli ◽  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Ethyl Acetate ◽  
Ethyl Acetate Fraction ◽  
Diffusion Method ◽  
Garcinia Mangostana ◽  
Methanol Fraction ◽  
Tlc Bioautography ◽  
Fractionation Method

Mangosteen leaves have flavonoid compounds, tannins, and saponins that can be efficacious as antibacterial. The aim of this study was to determine the fraction of mangosteen leaves having an antibacterial effect and knowing the class of compounds identified as having antibacterial activity after TLC- Bioautography testing was carried out. The samples were extracted using 96% maceratarion method and fractioned using liquid-liquid fractionation method with methanol, n-hexane and ethyl acetate solvents, antibacterial activity using agar diffusion method (Kirby and Bauer) with 3 concetrations namely 10%, 20% and 30%. Thin Layer Chromatography (TLC) uses n-hexane and chloroform solvens. TLC-Bioautography uses contact bioautography methods. The resultd showed that mangosteen leaves in methanol fraction with a concentration of 30% had a very large inhibitory activity again Staphylococcus aureus and ethyl acetate fraction with a concentration of 30% had the gratest antibacterial activity against  Escherichia coli. The results of the TLC- Bioautography study showed that the flavonoids compounds after spraying with AlCl3 and the mangosteen leaf Biosutography test had inhibitory zone activity against the bacteria Staphylococcus aureus dan Escherichia coli. Keywords: Mangosteen Leaves. Antibacterial, TLC Bioautography.  ABSTRAK Daun manggis mempunyai senyawa flavonoid, tanin, dan saponin yang dapat berkhasiat sebagai antibakteri. Penelitian ini bertujuan untuk mengetahui fraksi daun manggis memiliki efek antibakteri dan mengetahui golongan senyawa yang teridentifikasi memiliki aktivitas antibakteri setelah dilakukan pengujian KLT Bioautografi. Sampel diektrak dengan metode maserasi dengan pelarut 96% dan difraksinasi dengan metode  fraksinasi cair-cair dengan pelarut metanol, n-heksan dan etil asetat, aktivitas antibakteri menggunakan metode difusi agar (Kirby and Bauer) dengan 3 kosentrasi yaitu 10%, 20% dan 30%. Kromatografi Lapis Tipis (KLT) menggunakan pelarut n-heksan dan klorofom. KLT-Bioautografi menggunakan metode bioautografi kontak. Hasil penelitian menunjukan daun manggis pada fraksi metanol  dengan kosentrasi 30% memiliki aktivitas zona hambat ppaling besar terhadapat bakteri Staphylococcus aureus dan fraksi etil asetat dengan kosentrasi 30% memiliki aktivitas antibakteri paling besar terhadap  Escherichia coli. Hasil penelitian KLT-Bioautografi menunjukan golongan senyawa flavonoid setelah disemprotkan dengan AlCl3 dan uji Bioautografi daun manggis memiliki aktivitas zona hambat terhadap bakteri Staphylococcus aureus dan Escherichia coli. Kata kunci : Daun Manggis, Antibakteri, KLT- Bioautografi.

ChemInform Abstract: Solid Dispersion: A New Horizen in Novel Drug Delivery System

ChemInform ◽  
2013 ◽  
Vol 44 (27) ◽  
pp. no-no
Author(s):  
Devender Singh Rathore ◽  
Reeta Rani Thakur ◽  
Sonia Narwal
Keyword(s):  
Drug Delivery ◽  
Drug Delivery System ◽  
Delivery System ◽  
Solid Dispersion ◽  
Novel Drug Delivery System ◽  
Novel Drug
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