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All Journal VALENSI Jurnal Penelitian Hasil Hutan ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry JKPK (Jurnal Kimia dan Pendidikan Kimia) Jurnal Penelitian Hasil Hutan Helium: Journal of Science and Applied Chemistry
Ani Iryani
Universitas Pakuan
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Energy Environmental Science Materials Science & Nanotechnology

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Sintesis dan Karakterisasi Komposit Eugenol-Silika Gel dari Abu Tongkol Jagung serta Analisis Antibakteri dan Daya Serap terhadap Air Muhammad Fathurrahman; Usep Suhendar; Ani Iryani; Diana Widiastuti; Sherin Nurhafidza Ahmad; Esya Juniar
ALCHEMY Jurnal Penelitian Kimia Vol 18, No 1 (2022): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.18.1.47161.10-18

Abstract

Tongkol jagung mempunyai kandungan silika yang cukup tinggi, yaitu 67,41% dari total abunya yang memungkinkan untuk dimanfaatkan untuk pembuatan komposit eugenol-silika gel. Penelitian ini bertujuan mempelajari pembuatan komposit eugenol-silika gel dengan bahan dasar abu tongkol jagung menggunakan metode sol gel, diikuti dengan analisis daya serap air dan aktivitas antibakteri terhadap E. coli dan S. aureus. Komposit eugenol-silika gel ini dikarakterisasi menggunakan Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM) dan Thermogravimetric Analysis (TGA). Hasil karakterisasi dengan FTIR menunjukkan bahwa sintesis komposit eugenol-silika gel berhasil dilakukan. Analisis menggunakan XRD menunjukkan bahwa komposit eugenol-silika gel memiliki bentuk amorf. Karakteristik mikrostruktur menggunakan SEM menunjukkan permukaan yang tidak merata dan terdapat gumpalan (cluster) yang menandakan adanya bentuk butiran-butiran yang beragam berbentuk bulat atau globular pada permukaan komposit eugenol-silika gel. Analisis termogravimetri yang dilakukan sampai suhu 600 °C menunjukkan total prosentase pengurangan massa komposit eugenol silika-gel sebesar 13,10%. Daya serap air komposit eugenol-silika gel memiliki nilai persentase yang lebih tinggi dibandingkan dengan silika gel food grade. Akan tetapi, komposit eugenol-silika gel tidak memiliki aktivitas antibakteri terhadap E. coli dan S. aureus.Synthesis and Characterization of Eugenol-Silica Gel Composite from Corn Cob Ash and Analysis of Antibacterial and Water Absorption. Corn cobs have high silica content, specifically 67.41% of the total ash, possibly used for eugenol-silica gel composite manufacture. This study aims to synthesize eugenol-silica gel composite with corn cob ash as the base material by sol gel method, followed by analyzing water absorption and antibacterial activity against E. coli and S. aureus. The method used is the sol-gel method. This eugenol-silica gel composite was characterized using Fourier Transform Infrared (FTIR), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), and Thermogravimetric Analysis (TGA). The characterization results by FTIR showed that the synthesis of the eugenol-silica gel composite was successfully carried out. Analysis using XRD showed that the eugenol-silica gel composite had an amorphous form. Microstructural characteristics using SEM showed an uneven surface and clusters indicating the presence of various globular or spherical shapes on the surface of the eugenol-silica gel composite. Thermogravimetric analysis carried out until a temperature of 600 °C showed the total percentage reduction in mass of the eugenol silica-gel composite was 13.10%. The water absorption of eugenol-silica gel composite has a higher percentage value than food-grade silica gel. However, eugenol-silica gel composite has no antibacterial activity against E. coli and S. aureus. 
Chicken Bone Based Adsorbent for Adsorption of Pb(II), Cd(II), and Hg(II) Metals Ion Liquid Waste Uswatun Hasanah; Ani Iryani; Agus Taufiq; Dimas Apryandi Darma Putra
Helium: Journal of Science and Applied Chemistry Vol 1, No 1 (2021): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v1i1.2949

Abstract

High productivity of chicken meat for supplying society also make some impact in high productivity of chicken bone and because its unraveling properties makes this become waste. Pharmaceuticals Waste comes from production process, adstertion of production tools, laboratory activities and rejected product. Laboratorys routine analysis also producing residual waste analysis, one of the source is come from heavy metals analysis of Pb, Cd, dan Hg. General process for waste treatment producing high quantity of sludge, mean while using third party service have impact in high costing of transportation and treatment process. An alternatif way for this case is using sorption treatment. Initial research starts from preparation of chicken bone-based adsorbent and its characterization using SEM and FTIR, followed by quality analysis of fresh waste (which is waste A and waste B) observed at pH, COD, TDS, TSS also Pb, Cd, dan Hg metals. Adsorption process was observed from adsorbents graying temperature, adsorbents particle size, contact time, pH of waste, and adsorbents weight. Best result from adsorption process were applicated at fresh waste and simulation waste of Pb, Cd, and Hg metals also re-testing quality analysis of fresh waste and simulation waste for before-after result comparing purpose. The purpose of this research is for characterizing chicken bone-based adsorbent, observing adsorption process of  Characterization of chicken bone ash based adsorbent has been carried out in adsorbing Pb, Cd, and Hg metals in pharmaceutical laboratory waste. Functional group analysis with Fourier Transform Infrared Spectrophotometer (FTIR) showed that the chicken bone ash adsorbent contained the mineral compound apatite carbonate. Surface morphology with a Scanning Electron Microscope (SEM) shows that the adsorbent surface is porous and appears to be adsorbing metals. From the adsorption observations, it was found that the best adsorption conditions were at an ashing temperature of 800 oC, particle size of 80 mesh, contact time of 30 minutes, waste conditions at pH 6 and an adsorbent weight of 600 mg. Application chicken bone-based adsorbent against pharmaceutical waste shows its existence improve the quality of waste but still do not meet the quality standard requirements for Hg metal.
Study of Reaction Kinetics and Identification of Clotrimazole Degradation Compounds in Anti-Fungal Cream Preparations Cellia Christiana Batubara; Ani Iryani; Linda Jati Kusumawardani
Helium: Journal of Science and Applied Chemistry Vol 1, No 2 (2021): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v1i2.4540

Abstract

Fungal infections of the skin can be treated with antifungal compounds, one of which is clotrimazole. Under certain conditions, clotrimazole can be degraded to imidazole and (o-chlorophenyl) diphenyl methanol which can cause skin irritation. This is because the storage conditions of the drug product during or after use if it is not suitable, can interfere with the stability of the drug product. Therefore, this study was conducted to obtain information regarding changes in clotrimazole levels, reaction order, reaction constant value, half-life, activation energy, and the possibility of compounds formed after the clotrimazole degradation process to determine the good storage conditions of the product. Clotrimazole levels were tested in the open and closed state of the packaging every day at different storage temperatures for three months. Changes in clotrimazole levels were measured using HPLC every week. In addition, the identification of compounds resulting from degradation was also tested using HPLC every month and continued using LC-MS/MS in the last week. The results of the analysis of clotrimazole levels, there was a decrease in levels but still in accordance with the specifications required by the Indonesian Pharmacopoeia. The greatest decrease in levels occurred in samples stored at a temperature of 40±2oC which reached 9133%. The decrease in clotrimazole levels followed a first-order reaction with the shortest half-life of 90 weeks and activation energy of 18.9 kJ/mol. Identification of the degraded compounds using HPLC and LC-MS/MS found imidazole compounds and (o-chlorophenyl) diphenyl methanol in samples stored at 25±2oC and 40±2oC. These compounds can cause skin irritation, but these compounds may not have a serious impact because they have a fairly large body threshold value of 220 mg/kg. This shows that clotrimazole cream stored at various temperatures, both at 5±2oC, 25±2oC, and 40±2oC can still be used for three months after the packaging is opened according to the in-use shelf life.
Comparison of Analysis Results pf pH, TSS, COD and Ammonia in Industry Wastewater with Sparing and SNI Methods Dessy Nur Indryastuti; Ani Iryani; Muhammad Fathurrahman
Helium: Journal of Science and Applied Chemistry Vol 2, No 2 (2022): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v2i2.6342

Abstract

Sparing is a development of sensor technology to monitoring wastewater quality continuously and online, so it can be done in real time. Wastewater quality monitoring carried out in the laboratory using the SNI method still has several drawbacks, including large analysis costs, long analysis time and the use of chemicals that are not environmentally friendly. This study aims to determine the differences in the results of the analysis of the Sparing method with SNI on the parameters of pH, TSS, COD, and ammonia in the EWTP wastewater of PT "X" using statistical processing through the F-test and T-test. The research stages include sampling, sample storage and analysis in the laboratory. Based on the results of the study, it can be concluded that the differences in the method of Sparing analysis and SNI are not significantly different to the pH parameters in the measurement range 6.77 - 6.88; TSS in the measurement range 9.486 - 12.343 mg/L; COD in the measurement range of 55.402 - 59.274 mg/L and ammonia in the measurement range of 0.368 - 0.405 mg/L. This proves that the Sparing method can replace the SNI method for routinely monitoring the quality of EWTP wastewater of PT "X".
Co-Authors Afifah Nur Ismawati Agus Taufiq Angelica Paramasari Cellia Christiana Batubara Dessy Nur Indryastuti Diana Widiastuti Dimas Apryandi Darma Putra Djoko Hartanto Esya Juniar Hadi Nur Hery Widijanto Intan Wulandari Linda Jati Kusumawadani Linda Jati Kusumawardani Lisna Efiyanti Mardi Santoso Muhammad Fathurrahman Muhammad Fathurrahman Nela Rahmatisari Novitri Hastuti Poedji Hastuti Sherin Nurhafidza Ahmad Shinta Safitri Siti Kholisoh Siti Warnasih Sutanto Sutanto Usep Suhendar Uswatun Hasanah Yulian Syahputri