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The Journal of Pure and Applied Chemistry Research

jpacr
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Published by Universitas Brawijaya

ISSN : 23024690 EISSN : 25410733 DOI : http://dx.doi.org/10.21776/ub.jpacr

Core Subject : Health, Science, Engineering,

Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Medicine & Pharmacology

The Journal of Pure and Applied Chemistry Research focuses in publishing research articles in the field of Chemistry and Applied Chemistry. The target is in exploring, investigating, and developing chemicals sources from local and/or Indonesian to increase the value. Scope of the journal is organic chemistry, analytical chemistry, inorganic chemistry, biochemistry, and physical chemistry. Included the topic also organic chemistry natural product, theoretical and computational chemistry.

Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)

Articles 306 Documents

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Synthesis and Characterization of Fe3O4 Nanoparticles Modified with Polyethylene Glycol as Antibacterial Material Poedji Loekitowati Hariani; Desnelli Desnelli; Fatma Fatma; Rizki Indah Putri; Salni Salni
The Journal of Pure and Applied Chemistry Research Vol 7, No 2 (2018): Edition May-August 2018
Publisher : Chemistry Department, The University of Brawijaya

The iron oxide (Fe3O4) nanoparticles modified with polyethylene glycol (PEG) was synthesized by co-precipitation methods using ferric and ferrous ions as the precursors. Further, the antibacterial activity was performed against gram-positive and gram-negative bacteria. The Fe3O4-PEG was characterized using X-Ray Diffraction (XRD), Fourier Transform Infra Red (FTIR), Scanning Electron Microscopy (SEM) with energy dispersive X-Ray analysis (EDAX) and Vibrating Sample Magnetometer (VSM). The particle size of Fe3O4-PEG calculated using XRD is 46.2 nm. The study confirmed that Fe3O4-PEG is superparamagnetic and has a saturation magnetization of 56.43 emu/g. The prepared Fe3O4-PEG gives the effect of both gram-positive and gram-negative pathogenic bacterial strains hence this material has potential utilization in the field of pharmaceutical and biomedical in the future.

Dependence of Technetium-99m Radioactivity on the Stability of Tc-99m Tetrofosmin as Injectable Radiopharmaceuticals Widyastuti Widjaksana; Puji Widayati; Yunilda Alwi; Lindawati N
The Journal of Pure and Applied Chemistry Research Vol 7, No 2 (2018): Edition May-August 2018
Publisher : Chemistry Department, The University of Brawijaya

Technetium-99m (Tc-99m) labeled tetrofosmin kit has been widely used in hospitals including in Indonesia. Usually, tetrofosmin kits and Tc-99m pertechnetate are supplied separately, but recently there has been a new trend where Tc-99m tetrofosmin is supplied in the form of the ready-to-inject product. To prepare such a product it has to be proven that tetrofosmin can be labeled with high activity of Tc-99m and the resulted Tc-99m tetrofosmin, remains stable within shipping time until being used in hospitals. In this investigation, locally produced tetrofosmin kits were labeled with various radioactivity of Tc-99m ranging from 150 mCi to 400 mCi, their radiolabeling yields or radiochemical purity was analyzed using SepPak C18 column, and the radiochemical stability was assessed within 30 hours. The worst storage condition was also studied by analyzing its radiochemical purity after being stored at extreme temperatures for several hours. The results showed that tetrofosmin kit can be highly labeled with up to 415 mCi of Tc-99m, and stable up to 30 hours in room temperature, and there is a tendency that higher radioactivity leads to more decreasing in radiochemical purity. Stability study in extreme temperatures showed that the product can withstand its stability within 6 hours in 40°C, but it decreased rapidly to less than 70% within 1 hour when stored in 50°C. It concludes that the quality of Tc-99m tetrofosmin as an injectable radiopharmaceutical can be maintained during transportation by storing it at cool temperature.

Study of Naturally Woven Coconut Leaf Sheath-Reinforced Polypropylene Matrix Based Composites Pinku Poddar; Kamol Dey; Sumon Ganguli; Shahin Sultana; Husna Parvin Nur; A. M. Sarwaruddin Chowdhury
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Renewable materials have gained significant attraction as reinforcement in polymer matrix composites. Naturally woven coconut leaf sheath (CLS) fiber-reinforced polypropylene (PP) composites were prepared by compression molding. Different composites were fabricated varying the weight percentage of CLS fiber (5, 10, 15, 20 and 25 wt%) . Hydrophilic nature of the CLS fiber was evaluated using water uptake test. Structural feature of the composites was confirmed by infrared spectroscopy. Mechanical performance was investigated using tensile and bending tests. Fiber reinforcement significantly increased the mechanical properties of the composites. Moreover, thermal properties and degradation nature of the composites were investigated.

Comparative Analysis of Chemical Components of Purified Essential Oil from Nilam Plants using Gas Chromatography Emas Agus Prastyo Wibowo; Fadila Mauliani; Utami Nofitasari; Atik Setyani; Nuni Widiarti
The Journal of Pure and Applied Chemistry Research Vol 6, No 1 (2017): Edition of January - April 2017
Publisher : Chemistry Department, The University of Brawijaya

This study aimed to determine the chemical components of the patchouli oil. Patchouli oil is one of the export commodities that have high economic value for Indonesia. In general, patchouli oil obtained from the hydrodistillation of patchouli leaves. Most industries are still using patchouli oil refiners made by ferrous metal. The rust will dissolve in patchouli oil obtained and led to the resulting of dark oil and patchouli aroma becomes lower. The main purpose of this research is to improve the quality of patchouli oil by the purification process technologies after oil refining process. In this research the purification of the impure and crude oil can be carried out using adsorption process with bentonite. Purification results with UV-VIS spectrophotometer showed that the activation energy at a wavelength of 510 nm-550 nm with 3.9 x 10-19 Joules. GC (Gas Chromatography) analysis showed that there are 13 components from patchouli oil, the 6 dominant peaks were compounds of patchouli alcohol (29.64%), delta-guanine (23.26%), alpha-guanine (21.9%), alpha-patchouline (4.24%), pogostol (4.15%), palustrol (4.00%), beta-pinene (3.9%). Based on the physical properties, the main constituent component content, and the Fe2+ content, refined patchouli oil meets the requirements of the Indonesian National Standards.

Formulation of M/A-Type Ointment Dosage From Ethanol Extract of White Plumeria Leaves (Plumeria alba l.) Against Candida albicans Dian Riana Ningsih; Zusfahair Zusfahair; Dwi Kartika; Mei Lianasari
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Candida albicans is one of fungi that can cause various infections. This fungal infection is known as candidiasis and some people often suffer from candidiasis. The sweaty and moisty skin is a factor that allows the growth of fungi causing skin diseases. The plants that can be used as antifungal is white plumeria leaves (Plumeria alba L.). Ethanol extract of white plumeria leaves contains alkaloid and saponin active compounds, to ease its use and to get the maximum effect, then white plumeria leaves are formulated into ointment dosage form. This research is to know the antifungal activity of extract, to formulate ointment and to know the characteristic of the extract. The research begins with determination of minimum inhibitory concentration (MIC) of extract against C. albicans, then formulation of ointment dosage. The physical properties of the ointment is tested including homogeneity test, pH, dispersive power, protection power, adhesion and hedonic and antifungal activity. The method used in determining MIC and the activity test of dosage is agar-well diffusion method. The MIC value of extract was 5 ppm with a 1.22 mm inhibition zone. Extract has a form of semisolid, white colour, distinctive odor, homogeneous, protective, pH of 5.07-5.59, dispersive power of 5,09-5,78 cm, adhesion of 1.00-2.33 seconds and antifungal activity of ointment at day 0 for concentrations of 5, 10 and 15 ppm respectively are 2.93; 5.2 and 7.87 mm and at day 15 for concentrations of 5, 10 and 15 ppm respectively are 3.68; 4.87 and 5.82 m

Study of Hydrolysis on Pb(ZrxTi1-x)O3 Synthesis Using Zirconium(IV) Nitrate as Precursor and Their Densification Process Akhmad Al-bari; Rachmat Triandi Tjahjanto; Masruroh Masruroh
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Pb(ZrxTi1-x)O3 has extensive application in electronic components as a thin layer. The densification layer is controlled by some factor such as precursor composition and heating techniques. Therefore, it is necessary to get simply precursor synthesis from zirconium(IV) nitrate stabilized polyol-acetate. In other hand, hydrolysis factor and the heating rate are affected as well as factor control. The PZT synthesis (55:45) was varied in Rw ratio as comparing water mole and the total mole of metal. The result of Rw = 0, 6, 9, and 12 are coated on silicon substrates and annealed with heating rates variate 1, 5, 10, and 30 °C/min for 650°C. The characterization and analysis were performed with FTIR and a microscope. Furthermore, the thermal dynamic behavior and crystal orientation are observed. The results show PZT synthesis from zirconium(IV) nitrate precurseor and PEG-acetate was stable and that can reproduce. The effect of rising of heating rate causes the dissipating PZT agglomeration, while the addition of water causes the cracking of crystals to become more massive.

Antibacterial Activity and Phytochemical Analysis of Edible Seaweed Eucheuma spinosum Against Staphyloccocus aureus Anna Safitri; Arie Srihardyastutie; Anna Roosdiana; Sutrisno Sutrisno
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

The current work aims to determine antibacterial activities of ethanol extracts of Eucheuma spinosum against Staphylococcus aureus. These were showed through inhibition zones formation, minimum inhibitory concentration (MIC), and minimum bactericidal concentration (MBC) values. The MIC was determined using dilution test tube method, and the MBC was calculated using streaking method. Qualitative test was applied to determine phytochemical compounds in ethanol extract of E. spinosum. Results showed that ethanol extracts of E. spinosum at concentrations of 1%; 2%; 5%, and 10% (v/v) resulted in inhibition zones of 1.98; 4.14; 7.42; and 10.27 mm, respectively. In addition, concentration of 10% (v/v) was the MIC, and 15% (v/v) was the MBC values of E. spinosum extracts against S. aureus. The phytochemical analysis showed that alkaloids and saponins were the main components detected. Alkaloids positive tests were observed by the formation of brown sediment with Wagner’s reagent, yellow sediment with Mayer’s reagent, and orange sediment with Dragendorff’s reagent. Saponins positive results were detected by the formation of stable foam when the extracts reacted with water and HCl. Overall, these results suggested that E. spinosum extracts have antibacterial properties against Gram-positive bacteria, i.e. S. aureus.

Membranes of Nata de coco-nanoparticles Fe3O4 For Diazinon Sensors Didik Pramana; Ani Mulyasuryani; Rachmat Triandi Tjahjanto
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Development of diazinon sensors using mixed membranes of nata de coco and Fe3O4 nanoparticles on the SPCE (screen printed carbon electrode) surface has been carried out potentiometrically. The design of the sensor begins with the optimization of Fe3O4 nanoparticles added to the membranes of 50%, 67% and 75% while pH optimization using pH 4-5 acetate buffer and phosphate buffer pH 6-7. The diazinon sensor of the result has been tested at range concentration of 10-12 - 10-5mol.L-1. The results showed that the best sensor performance was 67% Fe3O4 nanoparticles and pH 5. The Nernst factor was 34.5 mV / decade, the detection limit value of 1,3 x 10-9mol.L-1 in the range concentration of 10-11 - 5x10-8 molL-1 with a response time of 140 seconds.

Influence of Treating Essential Oils of Canarium Tree Resin on The Level Malondialdehyde (MDA), Protease Activity, Bronchi Histopathology Description and Expression of Tumor Necrosis Alpha Factor (TNF-α) on Asthma Rats (Rattus norvegicus) Faijal Fachrudin Mbabho; Aulanni’am Aulanni’am; Arie Srihardyastutie
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Essential oils of canarium tree resin (Canarium indicum L) have anti-inflammatory and antioxidant activity. Inflammation of the bronchi and airway remodeling is a major factor in the occurrence of asthma. The purpose of this study was to study the potential of essential oils of canarium tree resin on the expression of TNF-α, changes in bronchial epithelial cell features, MDA levels and protease activity from OVA and LPS exposure in a rat model of asthma. This study used four groups of rat, the negative control group, asthma group, therapy group dose 25 mg/kg BB and 50 mg/kg BB. TNF-α expression was calculated using Walter calculations, histopathologic observation of bronchi was observed using Olympus BX51 microscope, MDA level was measured using Thiobarbituric Acid (TBA) method and measurement of protease activity was done by spectrophotometric method, and analyzed by ANOVA. The results showed that the therapy of essential oils of canarium tree resin at 25 mg/kg BB and 50 mg/kg BB significantly (P<0.05), after treatment for seven days decreased, MDA 44%, Protease activity 46%, improved bronchial epithelium and TNF-α expression by 51%. This study proves that essential oils of canarium tree resin can be effectively used as therapy in asthma model rats.

The Potency of Monoterpenes Contained in Essential Oils of Canary Sap (Canarium indicum L.) as Anti-inflammatory Agent on Asthmatic Rats (Rattus norvegicus) Velayaty Labone Azzahra; Chanif Mahdi; Arie Srihardyastutie; Aulanni’am Aulanni’am
The Journal of Pure and Applied Chemistry Research Vol 7, No 3 (2018): Edition September-December 2018
Publisher : Chemistry Department, The University of Brawijaya

Asthma is a chronic airway disease characterized by significant exacerbation of bronchial spasm (bronchospasm) and airway inflammation. Asthma symptoms become more severe by oral infectious due to exposure of Gram-negative bacterial lipopolysaccharide (LPS). The essential oils (EO) of the canary sap (Canarium indicum L.) contained linalool, p-cymene and γ-terpinene as an anti-inflammatory agent. The aim of this study to determine the potency EO canary therapy toward level of malondialdehyde (MDA) and lung histopathology of asthmatic rats. The asthmatic rats were prepared by sensitization of allergent conducted by intraperitonial injection and nebulized of ovalbumin (OVA) also intrasulcular injection of Lipopolysaccaride from Phorphyromonas gingivalis bacteria. Five groups of rats (Rattus norvegicus) were used in this research; ie the control group, the asthmatic group, and three groups with therapy of EO canary the dose of 25 mg/kg BW, 50 mg/kg BW and 100 mg/kg BW for 7 days. The contain of EO canary were analyzed by Gas chromatography–mass spectrometry (GCMS). The MDA levels were measured using the Thiobarbituric Acid (TBA) technique and histopatology of bronchial stained using Hematoxilin-Eosin (HE) and observed microscopically. The data were analyzed by One Way ANOVA with Tukey test (α = 0.05). The result showed that EO canary significantly (p < 0.05) decrease MDA levels and repair lung histopatology of asthmatic rats. The analysis EO canary performed by GCMS composed of l-phellandrene; p-cymene; γ-terpinene; linalool; camphor; limonene and 1,8-cineole. It can be concluded EO canary has potency as anti-inflammatory agent of asthmatic condition. The most effective dose therapy was obtained as high as 100 mg/kgBW that decreased 46.56 % level of MDA.

Page 15 of 31 | Total Record : 306

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Editorial Address Departemen Kimia, Fakultas MIPA, Universitas Brawijaya, Jl. Veteran 65145 Malang

Location Kota malang, Jawa timur INDONESIA

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Contact Name
Masruri

Contact Email
masruri@ub.ac.id

Phone
+62341-575838

Journal Mail Official
jpacr@ub.ac.id

Editorial Address
Departemen Kimia, Fakultas MIPA, Universitas Brawijaya, Jl. Veteran 65145 Malang

Location
Kota malang,

Jawa timur

INDONESIA