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Jurnal Kartika Kimia

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Published by Universitas Jenderal Achmad Yani

ISSN : 26551322 EISSN : 26550938 DOI : -

Core Subject : Science, Education, Engineering,

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education

Jurnal Kartika Kimia is National Journal that publish all research article/ review/ short communication related to progres of chemistry researchs. Scope of this journal are: 1) Analytical Chemistry ; 2) Inorganic Chemistry ; 3) Physical Chemistry ; 4) Organic Chemistry ; 5) Biochemistry also applied chemistry such as Material Chemistry, Environmental Chemistry, Catalyst, Food Chemistry, Natural Products Chemistry, and Computational Chemistry. Jurnal Kartika Kimia published by Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University. Jurnal Kartika Kimia publish 2 issues per year at May and November. Jurnal Kartika Kimia can be accessed via print (ISSN 2655-1322) and online (ISSN 2655-0938)

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Articles 134 Documents

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The Effect of Variations in Current and Time to Manufacture Powder Tin (Sn) via Electrodeposition Process Raden Henny Mulyani; Yuliani Carisca Tanjung; Djoko Hadi Prajitno
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Manufacture of powder metallurgy through the process of electrolysis, resulting in the phenomenon of deposition on the cathode. Electrolysis process produces high purity but many compounds decompose participating will affect its purity. Pulverizing tin (Sn) is done by varying the amount of current (5 A , 6 A and 7 A) and processing time (20 minutes , 25 minutes and 30 minutes) with variable fixed temperature of 50 ° C and solution concentration of 0.01 M. Electrode used is stainless steel 304 as the cathode and tin (Sn) as the anode. Powder tin (Sn) generated reaches 80 % , the most current efficiency is obtained from the current 6 A with a time of 20 minutes and the lowest energy consumption derived from the current of 5 A at 20 , 25 and 30 minutes at 4.6 KWH / kg Sn. From the results obtained are expected to be a material consideration in producing powder tin (Sn).

Screening and Identification of Xylanase Enzyme-Producing Bacteria in Peuyeum Cassava with 16S rRNA Gene Marker method Fenti Fatmawati; Muhammad Nur Abdillah; Astri Fatmasari; Yuni Dwi Mulyaningsih
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Peuyeum comes from cassava which is an agricultural commodity that is widely grown in Indonesia as a food which is source of carbohydrates. The types of polysaccharides that compose cassava are starch, cellulose and hemicellulose in the form of xylan. Xylanase is a xylanolytic enzyme that can hydrolyze xylan. The bacteria producing xylanase enzyme has been isolated from peuyeum which is thought to affect the fermentation process. Peuyeum contains starch so that it is one of the sources of the amylase enzyme. But there has never been a study of peuyeum's xylanase enzyme screening. The purpose of this study was to isolate xylanase-producing bacteria on peuyeum and identify these bacterial species by analyzing the 16S rRNA gene so that it could become a new source in the search for enzymes. This study consisted of several stages, namely bacterial isolation, xylanase enzyme screening, morphological testing, bacterial DNA isolation, sequencing, bacterial identifikation with the phylogenetic tree method. Xylanase enzyme producing bacteria in peuyeum has been successfully isolated. Based on the results of phylogenetic tree analysis it was found that XF1 bacteria had the closest homology to Bacillus cereus with 99% similarity.

Isolation and Antibacterial Activity of Phenol Compounds of Ethyl Acetic Extract of Red Zinger (Zingiber officinale Roscoe var. sunti) Lilis Siti Aisyah; Jasmansyah Jasmansyah; Sari Purbaya; Temi Resnawati
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

In the treatment of infectious diseases, one of the serious problems faced is the occurrence of bacterial resistance to the antibiotics used. The search for new antimicrobial compounds is one of the important research activities, because of the background of the development of resistant bacterial populations. In line with this, the development of new drugs is needed to replace drugs that become resistant. This study aimed to isolate phenol compounds from the ethyl acetate extract of red ginger rhizome (Z. officinale Roscoe var. Sunti), and analyze the results of isolation using UV and FTIR spectrophotometers and test the antibacterial activity of phenol compounds to Escherichia coli and Staphylococcus aureus. The isolation stage was started by macerating the powder with n-hexane solvent then continued maceration using ethyl acetate solvents. After that the ethyl acetate extract was carried out by separation and purification of the compound using the vacuum liquid chromatography (VLC), guided gravity chromatography with thin layer chromatography (TLC) and also preparative thin layer chromatography (PTLC). From the isolation results obtained pure isolates, purity test, measurement using UV and IR spectrophotometers, and antibacterial activity tests. From the results of UV and FTIR analysis, it was concluded that the compounds obtained were groups of phenol compounds, in the form of yellow solids and showed the existence of a double bond system conjugated in the presence of –OH, C = O, C = C and –CH aromatic groups. Antibacterial activity test showed that the minimum inhibitory concentration (MIC) of Escherichia coli bacteria was 12.5% with a minimum kill concentration (MBC) of 50%, whereas for Staphylococcus aureus bacteria showed that the minimum inhibitory concentration (MIC) was 6.3% and minimum kill concentration (MBC) of 25%.

Minerals and heavy metals in Labisia pumila var. alata folia of Selected Geographic Origins Ade Chandra Iwansyah; Noorazizah Zainal Abidin; Mashitah Mohammad Yusoff
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Labisia pumila var. alata leaves (LP) with a long history of use folk remedy and endemic to the Malay Archipelago, is now supplied worldwide as ingredient of functional foods and beverages. Minerals and heavy metal concentrations in Labisia pumila var. alata folium (LP) of selected geographic origin based on microwave-assisted sample digestion and inductively coupled plasma mass spectrometry (ICP-MS) were determined. Fifteen elements comprising minerals (Ba, Ca, Cr, Co, Cu, Fe, K, Mg, Na, Ni, Rb and Zn) and heavy metals (As, Cd and Pb) were analyzed with an inductively coupled plasma – mass spectrometer (ICP-MS). The highest nutrient concentration was measured in LP from Tilu Mountain (Cu, Na, K, Mg and Zn). The highest values of Ba, Ca, Co, Cr and Fe were detected in LP from Raub. Ni and Rb were highest in LP from Cibeundey Village. As was highest in LP from Raub (0.04 ± 0.00 mg/kg). The highest Pb contents were in LP from Tilu Mountain (2.90 ± 0.10 mg/kg) and LP from Halimunan-Salak Mountain (3.12 ± 0.03 mg/kg), all of which were well within the permissible limits as specified by the U.S. FDA for edible plant parts.

Biodiesel from Waste Cooking Oil using Activate Carbon as Adsorbent and Synthesis of Triaacetin using Nitric Acid as Catalyst Novi Nuraeni; Yenny Febriani Yun; Dewi Meliati Agustini
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Waste cooking oil is a waste of frying oil that is containing high free fatty acids (% FFA). The waste could be made to be useful as biodiesel and triacetin. Biodiesel was produced by addition of 4 % (oil weight) activated carbon with stirring for 1hour at 90-100 oC then transesterification of waste cooking oil. The results showed the yield of the biodiesel was 95.28 % with flash point 179oC, water content 0.13 %, acid value 0.59, total glycerol 0.03 %, and the by-product glycerol 10.05 % (oil weight). Triacetin was synthesized by esterification of the glycerol with acetic acid with mol ratio 1 : 7 at 120oC used nitric acid catalyst (5 % glycerol weight). The results showed that the conversion of acetic acid was low, 24.05 %. That showed nitric acid could be a good catalyst in the esterification of triacetin.

Antibacterial Activity of the Essential Oil from Betel leaf (Piper betle L.) against Streptococcus pyogenes and Staphylococcus aureus Hernandi Sujono; Samsu Rizal; Sari Purbaya; Jasmansyah Jasmansyah
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Betel leaf (Piper betle L) is a medicinal plant. Its essential oil has antibacterial activity of phenolic compounds and theirs derivatives that can inhibit a wide range of bacteria. Streptococcus pyogenes and Staphylococcus aureus is a bacteria that can cause strep throat (pharyngitis). This study was conducted to determine how to obtain the essential oil of Betel leaf green (Piper betle L.) using steam-water distillation method and determine the antibacterial activity of essential oils of betel leaf (Piper betle L.) against the bacteria Streptococcus pyogenes and Staphylococcus aureus using wells method. Betel leaf 5 kg isolated using steam-water distillation of essential oils produces as much as 9 mL, yield of 0.135%, a specific gravity of 0.750 g / mL, and the refractive index of 1.337. The results of GC-MS analysis of betel leaf green essential oil obtained 10 Most compounds are compounds chavicol, eugenol, germacrene D, caryophyllen, eugenol acetate, 2-allyphenol, β-chamigrene, α-cadinene, terpineol, and α-humulene. Based on the test results of the antibacterial activity of betel leaf that the essential oil of betel leaf green (Piper betle L) at the concentration of 10%, 20%, 30%, and 40% can inhibit the bacteria Streptococcus pyogenes and Staphylococcus aureus, the category of barriers weak to moderate for bacteria Streptococcus pyogenes and weak to strong resistance categories for Staphylococcus aureus bacteria.

Editorial Section Arie Hardian
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Front and Back Cover Arie Hardian
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Pengolahan Limbah Cair Laboratorium Kimia Menggunakan Metode Elektrokoagulasi Yulia Sukmawardani; Vina Amalia
Jurnal Kartika Kimia Vol 2 No 2 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Laboratory liquid waste is one of the problems encountered in universities. Before discharged into the aquatic environment, the liquid waste must pass through the processing first. One way that can be done to reduce the contamination of laboratory waste is by lowering the heavy metal content contained in the waste by using electrocoagulation method. Electrocoagulation becomes one of the alternative waste treatment because this method is easy and simple to do, but produces high efficiency of metal removal. In this research has been tested the liquid waste treatment laboratory by using electrocoagulation method. The processing of liquid waste by electrocoagulation using Al-Al electrodes, gives a very significant metal removal result. Including decreased levels of organic compounds and total solids in waste decreased. However, the waste from the treatment with electrocoagulation has not met the required quality standard in West Java Provincial Regulation No. 6 of 1999 on the Standard of Waste Water Quality. Because of the high concentration of metal in laboratory liquid waste, it is necessary to process the waste before and after the electrocoagulation process. Keywords: Al electrode, electrocoagulation, laboratory liquid waste

Analysis and Characterization of Bioethanol from Banana (Musa Acuminata Balbisiana) Peel Pulp by Yeast Enzymatic Production Khusna Widhyahrini; Endah Nur Hidayat
Jurnal Kartika Kimia Vol 2 No 2 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Banana (Musa acuminata balbisiana) peel had some potential using, especially in bioethanol. It was indicated that Banana peel (Musa acuminata balbisiana) had carbohydrates abundance. Banana (Musa acuminata balbisiana) peel can be cropped in some season, not only in a specific seasons. So that, Banana (Musa acuminata balbisiana) peel could be gotten easily. Banana (Musa acuminata balbisiana) peel as the trash is usually thrown away or animal feed needed. Banana (Musa acuminata balbisiana) peel had carbohydrate higher content, so it gave a lot of potential in bioethanol application. But, we needed to understand about the results of fermentation process. Characterization had been done to understand the fermentation of Banana peel product. The raw materials gotten from dried Banana peel with the amount of 50 gram in each of 100 ml beaker glass. The yeast solution had been made in 15% (w/v), 25% (w/v), and 35% (w/v) in water solvent. The fermentation process was carried out during 96 hours, then the clear liquid was separated by decantation process from the mixture. The distillation process was done to purify the product on 80°C degrees. The distillate was measured by Fourier Transform Infrared (FTIR) spectroscopy to identify the specific peaks. The FTIR measurement was used Octagonal Cell Windows FTIR Prestige 21 Shimadzu. The FTIR spectrum showed characteristic peaks of bioethanol at 3404.01 cm-1 (-OH bonds); 2933.54 cm-1 (-C-H bonds); and 1011.06 cm-1 (-C-O bonds). From the FTIR analysis could be concluded that fermentation of Banana peel gave bioethanol. Keywords: Bioethanol, Banana peel, yeast, fermentation process, Biocatalyst

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