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The Journal of Pure and Applied Chemistry Research
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 307 Documents
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Spectral Analysis and In Vitro Biological Activity of Cu(II) Complex with Tridentate ONO Schiff Base Ligand Emir Horozić; Merima Ibišević; Darja Husejnagić; Enida Karić; Nusreta Hasić; Amina Hajdarević
The Journal of Pure and Applied Chemistry Research Vol 10, No 2 (2021): Edition May-August 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.02.569

Abstract

In this study, metal complex of Copper(II) with a Schiff base derived from 2,2-dihydroxyindane-1,3-dione and 2-aminoethanoic acid were synthesized. The product are characterized by spectral methods. The antimicrobial activity was tested on reference bacterial strains and the antioxidant capacity was analyzed by using the DPPH and FRAP methods. The spectral data indicates that the Schiff base coordinates the Copper(II) as a tridentate ONO donor ligand. The compounds showed weaker antimicrobial activity on certain tested microorganisms. In vitro testing of antioxidant activity showed a significant reducing ability of the complex, as well as inhibitory activity against DPPH radicals. 
Study of Sodium Chloride Production Using Gradual Evaporation of Seawater from Nggolonio Sea, East Nusa Tenggara Ernesta Wae; Rachmat Triandi Tjahjanto; Diah Mardiana
The Journal of Pure and Applied Chemistry Research Vol 10, No 2 (2021): Edition May-August 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.02.483

Abstract

Sea water as a raw material resources for the kitchen salt production, besides containing NaCl, has also containing other dissolved salts such as hygroscopic calcium and magnesium salts. The high content of other salts cause industrial NaCl has a low quality. This aim research was to find out the effect of seawater evaporation on NaCl content changes.  Seawater obtained from Nggolonto, Nagekeo, NTT, was used with an initial volume of 200 mL, then it was concentrated in varying of final volume, i.e.  20, 23, 25, 27 and 29 mL. The NaCl content was calculated based on total chloride ion content, corrected toward magnesium and calcium ions content and the presence of sulphate anion. In addition, the chloride and magnesium also calcium ions content was analyzed volumetrically, while the sulphate anion was determined spectrophotometrically. The research result showed that NaCl content increase significantly up to 27 mL of final volume and was constantly afterward.  Furthermore, the highest of NaCl content obtained from final volume of 29 mL was 96.01%. Nevertheless, comparing to SNI 06-0303-1989, its content was still below the standard of 98.5%.   
Synthesis, Characterization, and Photocatalytic Activity of N-Doped TiO2/Zeolite-NaY for Methylene Blue Removal Rendy Muhamad Iqbal; Indri Susanti; Rahadian Abdul Rachman; Tri Agusta Pradana; Erwin Prasetya Toepak
The Journal of Pure and Applied Chemistry Research Vol 10, No 2 (2021): Edition May-August 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.02.572

Abstract

Dye is an important compound in the textile industry. The famous dye for coloring of textile is methylene blue. Methylene blue degradation has been difficult when carried out naturally by microorganisms. The advanced oxidative process is a promising method to degrade methylene blue using semiconductor material TiO2 and its modification. The modification catalyst of TiO2 such as TiO2-N, TiO2/zeolite-NaY, and TiO2-N/zeolite-NaY. These materials were synthesized by mixing TiO2 and urea, then followed by impregnation of the mixture to zeolite-NaY as support material. The materials have been synthesized then characterized by XRD, and FTIR. Degradation of methylene blue on the synthesized materials was tested under UV light for 5, 20, 30, 40, and 50 minutes. The results showed that the diffractogram of TiO-N/zeolite-NaY and TiO2/zeolite-Y has a similar specific peak with TiO2 and zeolite-NaY. It indicates that the impregnation process was successful. TiO2/zeolite-NaY and TiO2-N/zeolite-NaY also showed excellent activity for degrading methylene blue, which reached up to 99% for 3 hours of reaction.
Anti-Inflammatory Activity of an Indole Alkaloid Isolated from Bebuas (Premna serratifolia) Muhaimin Muhaimin; Muhammad Irhash Shalihin; Madyawati Latief
The Journal of Pure and Applied Chemistry Research Vol 10, No 2 (2021): Edition May-August 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.02.584

Abstract

Premna serratifolia known as bebuas has long been used by Malay comunity for both food and traditional medicine. The most notable advantage of this plant is to heal woman after childbirth and to raise the notion that contains anti-inflammatory bioactive compounds. In this study, the hexane extract of bebuas was only contained steroids. Meanwhile the ethanol extract contained various secondary metabolites such as phenolics, alkaloids, flavonoids, steroids and saponins. The ethanol extract was further separated since the targeted compound isolate was an alkaloid. The isolate obtained was a yellow crystal which transformed to yellow oil after being exposed to air. The anti-inflammatory evaluation of the compound gave a result with a strong activity with ED50 = 4.06 mg/KgBW. Characterization by UV-Vis and FT-IR showed that the isolate’s spectra pattern had similarities with bufotenine. It revealed that the isolate shared the same basic skeleton with the bufotenine, especially the indole skeleton. Furthermore, it also shared the same physical form with bufotenine. These evidences strengthened the assumption that the isolate was an indole alkaloid.
Effect of Calcination Temperature on The Synthesis of Silica from Bagasse Poedji Loekitowati Hariani; Fahma Riyanti; Desneli Desneli; Fatma Fatma; Sabila Yunita; Muhammad Said
The Journal of Pure and Applied Chemistry Research Vol 10, No 2 (2021): Edition May-August 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.02.587

Abstract

Bagasse is the solid waste derived from the sugar-making process. A large amount of silica in bagasse is a potential source of silica. In this study, extraction of silica from bagasse was carried out in the following steps: pretreatment of bagasse using HCl solution, followed by calcination at varying temperatures (700℃, 800℃, and 900℃) using a furnace. Furthermore, extraction using NaOH solution and precipitation using HCl. Silica characteristics were obtained using X-Ray Diffraction (XRD), Scanning Electron Microscopy-Electron Dispersive Spectrometry (SEM-EDS), and BET surface area. The results showed that calcination temperature affected the characteristics of the silica produced. The silica extracted at 700℃ produced an amorphous phase with a broad peak at an angle of 2θ = 20-24°. It contained the most considerable silica content and surface area, 42.46% and 796.89 cm2/g, respectively. The extracted silica had an average diameter of 5.67 mm and a pore volume of 1.184 cm3/g.
Biosynthesis of Cu2O/CuO-NP and AgNP Using Rhizopus oligosporus as Reductor Agent Dwi Putri Woro Pamungkas; Suci Amaliyah; Akhmad Sabarudin; Anna Safitri
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.594

Abstract

Nanoparticles have been widely used in various fields which depends on its size and shape. Nanoparticles can be synthesized physically and chemically. However, these methods need large amount of energy, not environmental friendly and quite expensive, because requires several additional materials besides precursors. In this study, we performed the analysis of some parameters to determine the best conditions for biosynthesis using Rhizopus oligosporus to obtain the nanoparticles with specific size. This fungi was used because easy to find, cultivate, and handle. We found that grain size of Cu2O/CuO-NP and AgNP obtained are 23 nm, 55 nm respectively. In conclusion, this study confirms that some parameters investigated and Rhizopus oligosporus can be used to obtain the nanoparticles with specific size.
Partial Validation of Ultra Performance Liquid Chromatography Method for Quantification of Isoniazid-Pyrazinamide in Human Samples Vycke Yunivita; Triana Nurul Meirina; Atu Purnama Dewi; Harold Eka Atmaja; Rovina Ruslami
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.600

Abstract

Isoniazid (INH) and pyrazinamide (PZA) are first-line drugs in the treatment of meningitis of tuberculosis, in addition to rifampicin. The use of these drugs will determine the success of therapy to kill Mycobacterium tuberculosis in brain tissue that is difficult to penetrate by other drugs. Therefore, it is necessary to conduct research and monitor the use of this drug in plasma and cerebrospinal fluid (CSF) patients with TBM. This study aimed to determine the method of analysis of INH and PZA using Ultra Performance Liquid Chromatography Ultra Violet (UPLC-UV). The samples were taken from TBM patients who taken INH-PZA and others besides TBM patients who did not take INH-PZA. The analytic method carried out includes a comparison of the results of the analysis method for measuring levels of standard INH-PZA and INH-PZA in plasma and CSF samples. Analysis of INH-PZA in plasma and CSF can be performed using UPLC with UV detector, at least 100 uL plasma or CSF samples volume, with reproducible and accurate results.
Eco-Friendly Synthesis of Gold Nanoparticles through Gracilaria sp Seaweed Extract for Foam Height Stability in Liquid Hand Soap Formulations Syahjoko Saputra, Iwan; Hermadi Saputro, Anjar; Adliani, Nur; Rahmi, Dwinna; Sudirman, Sudirman; Nopiandi, Yogi
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.599

Abstract

Gold nanoparticles (G-NPs) were successfully synthesized using Gracilaria sp seaweed extract. Visually, color changes from purple-blue to ruby red and then finally to pink. UV-Vis spectrophotometer showed the optimum condition of G-NPs at 531 nm wavelength with an absorbance value of 1.1. The fourier transform infrared (FTIR) spectroscopy shows the absorption peak of functional groups at the Gracilaria sp seaweed extract like hydroxyl group (-OH), aromatic (C=C), alkane (C-H), and amine (C-N) at the wavenumbers of 3356, 1613, 1456, and 1182 cm-1, respectively. The X-ray diffraction (XRD) shows the crystallinity peaks of G-NPs at 2θ: 38.3o, 44.1o, 64.8o, and 77.8o with miller indices of (111), (200), (220), and (311). The Particle size analyzer (PSA) shows the distribution and particle size average of G-NPs was 11.8 nm. Analysis of particle zeta charge (PZC) confirms the total charge of inter-particles was -24.7 mV. The transmission electron microscopy (TEM) images shows the G-NPs was spherical shape with a particle size was 20 nm. The hand soap@G-NPs have a pH of 6.0 and foam height stability of 4.1 cm for 10 min.
One-Pot Catalytic Oxidation for Transforming Eugenol to Vanillin Using ZnAl2O4 Catalyst Damiana Nofita Birhi; Elvina Dhiaul Iftitah; Warsito Warsito; Adzkia Qisthi Ismail
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.622

Abstract

In this study, ZnAl2O4 catalyst was synthesized with the capability of transforming eugenol to vanillin through One-Pot Catalytic Oxidation. ZnAl2O4 was synthesized from Zn(CH3COO)2.2H2O and Al2O3 using the wet-impregnation method, and characterized by FTIR, XRD, and SEM. One-Pot Catalytic Oxidation was conducted by heating under reflux at 150oC using nitrobenzene and a certain amount of ZnAl2O4 catalyst (4% and 7%) for 2 and 3 hours of reaction. Catalytic Oxidation is also carried out without catalyst as a comparison. The vanillin product was confirmed by GC and spectral data achieved from UV-Vis, FTIR, and mass spectrometry. The results revealed that transforming eugenol to vanillin using ZnAl2O4 catalyst provides a better selectivity value than without using the catalyst, is 100% for the use of 4% catalyst in 2 hours, while without catalyst gives 88% in 3 hours. In addition, the use of 4% catalyst in 3 hours gives 94% for selectivity of vanillin, and the use of 7% catalyst gives selectivity values at 82% and 85%, respectively for 2 hours and 3 hours. The conversion rate of the use of catalyst and without catalyst gives the perfect rate at 100%, but the use of catalyst produces better vanillin with percent yield at 2.485 for 2 hours, and 3.22% for 3 hours, while without catalyst have percent yield of vanillin at 1.94% for 3 hours.
Biosorption of Methylene Blue by Activated Carbon from Sugarcane Waste (ACSW) Hendri Iyabu; Wiwin Rewini Kunusa; Ishak Isa; Doly Prima Silaban
The Journal of Pure and Applied Chemistry Research Vol 10, No 3 (2021): Edition September-December 2021
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2021.010.03.559

Abstract

This study was aimed to produce and characterized activated carbon from sugarcane bagassebyphysical and chemicalactivation. Physical activation was performed by carbonation process in temperatures 4500C and 6500C. While chemical activationusedH3PO4 10%, FeCl3 10% and KMnO4 10% as activator. The results showed that total yield (%) 49.8396 - 80.635; pH 4.0-7.9; ash content (g) 0.3338-0.8820; adsorption capacity of iod (%) 93.92-99.20. Morphological structure, functional group and Crystal structure was studied by using SEM analysis, FT-IR and XRD Difragtogram respectively.Adsorption capacity(%) of methylene blue 1.5 ppm and 2.5 ppm using UV-VIS Spectrophotometer produces; for H3PO4activatorat 450℃ = 99.24 and ND;at 600℃ = ND and 99.24. FeCl3 activator at 450℃ = 93.8 and 28.68; At 600℃ = ND and 99.24. KMnO4 activator at 450℃ = 61.24 and 65.12; At 600℃ = 39.4 and 53.79. 

Page 23 of 31 | Total Record : 307

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