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JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya
Published by Universitas Negeri Malang
ISSN : 25496565     EISSN : 25496573     DOI : 10.17966
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology
JC-T (Journal Cis-Trans) : jurnal kimia dan terapannya is published by Universitas Negeri Malang, Faculty of Mathematics and Science, Chemistry Department.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 101 Documents
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Karakter Ikatan Kimia, Kristalinitas, dan Ukuran Partikel Produk Silika yang Disintesis dari Bahan Limbah Padat Geotermal Joko Suryadi; Sabinna Azahra Sulaeman; Shafira Yulianthina; Tifa Paramitha; Eko Andrijanto
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 7 No. 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v7i12023p010

Abstract

Besides being able to synthesize silica from its precursors, silica can also be extracted through naturalmaterials, one of which is from geothermal solid waste at geothermal power plant sites. In this research,synthesis of silica compounds from geothermal solid waste has been carried out using the sol-gel method. The purpose of this study was to obtain silica compounds from geothermal solid waste with various implementations of adding HCl in the sol-gel method, namely by drip method and flow method. The silica products formed were then characterized based on their chemical bonding, crystallinity and particle size. The HCl material used in this study was varied at the level of pro-analyst (p.a) and laboratory grade purity. The silica products obtained had yields of 25.74% and 9.93% for the drip method and flow method, respectively. The characterizations of the resulting silica products include FTIR analysis for the bonding characteristics of the compounds, X-ray diffraction for the crystallinity character and the dynamic light scattering method to determine the product particle size. Characteristics of chemical bonding from wave number absorption analysis with FITR indicated that the resulting product was silica.
Studi Sintesis, Karakterisasi, dan Sifat Magnetik Senyawa Kompleks Nikel-N,N’-Dietiltiourea klorida Husni Wahyu Wijaya; Alfida Rahmah; Meyga Evi Ferama Sari; Siti Hartinah
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 7 No. 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v7i12023p016

Abstract

Complex compounds of between nickel and N,N’-dietilthiourea (detu) with mol ratio 1:4 weresuccessfully synthesized using direct synthesis and reflux methods. Ni-detu(DR) and Ni-detu(R) sampleswhich were obtained using direct synthesis and reflux methods melted at 159-161°C dan 114-116°C,respectively. Analizing FTIR of both samples indicated υ(N-H) bonds in the range of 3233-3235 cm-1 , υ(CH) 2964-2974 cm-1, υ(C-N) 1562-1579 cm-1 , υ(C=S) 646-653 cm-1. Refinement of Ni-detu(DR)samples usinggenerated XRD of reported CIF files gave Rwp of 11.63% proposed that the formula is [Ni(detu)4]Cl2. TheVSM measurements concluded that both samples were diamagnetic complexes.
Aktivitas Antioksidan Ekstrak Etanol Ulva sp dan Gracilaria sp dari Pantai Sayang Heulang Windy Widowaty; Sri Maryam; Nurul Novianti; Lita Mulyani
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 7 No. 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v7i12023p023

Abstract

Ulva sp and Gracilaria sp are found on the coast of Sayang Heulang beach and have potential as naturalantioxidants. This study aims to determine the antioxidant capacity of the two types of seaweed using the FRAP (Ferric Reducing Antioxidant Power) method. Ulva sp and Gracilaria sp were taken from Sayang HeulangBeach in March 2022. Each type of seaweed extracted using 70% ethanol for 3x24 hours.The extract thenconcentrated using a rotary evaporator for further analysis. The results of phytochemical screening showed that the ethanolic extract of Ulva sp was positive for flavonoids, tannins, saponins, and alkaloids, while the Gracilaria sp extract was positive for alkaloids, flavonoid tannins, steroids, and saponins. The antioxidant capasity of Ulva sp and Gracilaria sp ethanol extracts carried using the FRAP method with ascorbic acid used as standard. Each extract was measured using a UV-Vis spectrophotometer with a wavelength of 694 nm. The measurement results were expressed as mg equivalent of ascorbic acid/gram extract (mg AAE/gr sample). The analysis showed that the ethanolic extracts of Ulva sp and Gracilaria sp had antioxidant capacity values of 1.8 mg AAE/gr sample and 5.50 mg AAE/gr sample, respectively.
Kadar Total Flavonoid dan Aktivitas Antiinflamasi Kombinasi Ekstrak Etanol Secang (Caesalpinia sappan L.) dan Jahe Merah (Zingiber officinale Roxb.) Terhadap Penghambatan Denaturasi Protein Bovien Serum Albumin Tukiran Tukiran; Suyatno Suyatno; Fauzia Indah Sabila; Anisa Kurnia Sari
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 7 No. 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v7i12023p031

Abstract

Inflammation is a protective response caused by tissue damage, one of which is the result of proteindenaturation. Polyherbal formulations have pharmacological activity that can work dynamically to producemaximum therapeutic benefits with minimal side effects. The purpose of this study was to determine the totalcontents of flavonoids and anti-inflammatory activity of single extracts of secang (ES) and red ginger (EJ) andthe combination of the two extracts, namely: formulations F1 (1ES:1EJ), F2 (2ES:1EJ), and F3 (1ES:2EJ).This research is an experimental research and carried out in vitro. Secang and red ginger extraction wascarried out using the maceration method with 96% ethanol. Determination of total flavonoid content wascarried out using the reaction method of aluminum chloride with quarcetin as a standard. Testing of antiinflammatory activity was carried out in vitro using the BSA protein denaturation method with diclofenacsodium as a positive control. The results showed that the total flavonoid content of secang extract was 37.96 ±0.27 mgQE/g extract and red ginger extract was 26.51 ± 0.79 mgQE/g extract.
Pengembangan katalis nikel-itrium oksida untuk konversi furfural sebagai senyawa turunan biomassa menjadi 1,5-pentanediol Husni Wahyu Wijaya; Shogo Shimazu
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 2 No. 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v2i22018p001

Abstract

Hydrogenolysis of biomass-derived furfural (FFR) to 1,5-pentanediol (1,5-PeD) is a critical route forsustaining fine chemicals. Development of nickel-yttrium oxide catalysts has been successfully synthesized with two different treatments. The first catalyst, Ni-Y(n)HT catalyst, was synthesized by direct reduction from nickelyttrium hydroxides mixture. The mixture of nickel-yttrium hydroxides from the same preparation procedure was calcined as a pretreatment and subsequence reduced using hydrogen gas giving Ni-Y2O3(n)T catalyst. The reduced of catalysts consists of nickel(0) and yttrium oxide with the difference in crystallinity. The difference in catalytic performance between both type catalysts showed in the production of 1,5-PeD from hydrogenolysis of FFR. Catalytic behavior of catalysts is similar and Ni(0)-Y2O3 boundaries is critical for cleavage C-O bond of furan ring.
Kadar Fenolik Total dan Flavonoid Total Seduhan Daun Tin (Ficus carica) Segar dan Kering dengan Air Mendidih Oktavina Kartika Putri
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 2 No. 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v2i22018p007

Abstract

Fig leaves (Ficus carica) are known as the source of antioxidants. Antioxidant properties arise causedby the presence of phenolic compounds, flavonoid is one of several types of phenolic compounds. Usually people takes advantage of fig leaves by brewing them with boiled water, like tea. The use of high temperature was feared to decompose the phenolic compounds of fig leaves because these compounds are not resistant to heat. Decomposing the phenolic compounds will decrease their antioxidant potential. This research was to determine the total phenolic content dan total flavonoid content of fresh dan dried fig leaves with boiled water. Folin-Ciocalteu Method was used to determine the total phenolic content dan AlCl3 Colorimetric Method was used to determine the total flavonoid content. Total phenolic content of fresh dan dried fig leaves brew with boiled water were 0.0113±0.0004% dan 0.0076±0.0004% respectively. Total flavonoid content of fresh dan dried fig leaves brew was 0.0105±0.0003% dan 0.0025±0,0002% respectively. From the data analysis results with Two Way Anova, it can be concluded that the preparation of fig (fresh dan dried) simplicia significantly affects the total phenolic content dan total flavonoid content. 
AKTIVITAS ANTIFUNGI AIR PERASAN Syzygium polyanthum TERHADAP Candida albicans Destri Ummi Nadziroh; Nur Candra Eka Setiawan
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 2 No. 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v2i22018p013

Abstract

Candida albicans is a normal flora of the respiratory tract mucous membranes, gastrointestinal tract, and female genitalia that it causes oral ulceration, vulvovaginitis, skin infections, nail infections, lung infections and chronic mucocutaneous candidiasis. Salam (Syzygium polyanthum) is a plant that is widely used as a food seasoning or as an herbal medicine such as antifungi. The purpose of this study is to know antifungal activity of water juice of bay leaf (Syzygium polyanthum) on Candida albicans. This study was conducted at laboratory pharmacognosy and microbiology Academy of Pharmacy of Putra Indonesia Malang using experimental research methods. This study steps consisted of manufacture water juice of bay leaf with 100% and 50% concentration, phytochemical screening, and then tested antifungal activity for Candida albicans using method diffusion of pit. The results of this study can be concluded that water juice of bay leaf has not antifungal activity because no inhibition zone which isindicated by the absence of clear zone around well in the petri dish. Further research is needed on antifungal activity using other extract method.
Perbandingan Kadar Fenolik Total Sari Rimpang Temu Giring (Curcuma heyneana) Segar dan Terfermentasi Elrica Maggian Murelina; Ernanin Dyah Wijayanti
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 2 No. 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v2i22018p020

Abstract

Temu giring (Curcuma heyneana) has been used for a long time by Indonesian society to maintain the skin health. The phenolic content of temu giring has an efficacy as an antioxidant. Fermentation has been known to increase the antioxidant activity due to the increasing of phenolic content. This study aims to determine the comparison of total phenolic content of fresh and fermented temu giring (Cucuma heyneana) extract. The research procedures include the extract filtration, fermentation, phytochemical screening, total phenolic content determination, data analysis and drawing conclusion. Temu giring extract preparation was performed by filtering the temu giring with water until obtaining the extract. Then, the fermentation was conducted using Lactobacillus bulgaricus for 24 hours at 37°C. The organoleptic testing, including dye, smell, taste and pH, was performed. Finding shows that the fresh and fermented extract pH has decreased. The phytochemical screening of fresh and fermented temu giring indicates that it positively contains phenolic and flavonoid. From the total phenolic content determination by Folin Ciocalteu methods of fresh temu giring, the amount of 9.476±2.04 mgGAE/gram was obtained and from the total phenolic content determination of fermented extract, the amount of 61.333±1.643 mgGAE/gram was obtained. 
Novitasari Dan Wijayanti,Aktivitas Antimikroba Teh Asam Daun Tin(Ficus Carica) Secara In Vitro25Aktivitas Antimikroba Teh Asam Daun Tin (Ficus carica) Secara In Vitro Elwin Dwi Novitasari; Ernanin Dyah Wijayanti
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 2 No. 2 (2018)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um026v2i22018p025

Abstract

Fig Leaves contain flavonoids that can be used as antimicrobials. Fermentation with kombucha is expected to increase antimicrobial activity. The aim of this research is to observe antimicrobial activity of Fig Leaves sour tea against several microbes, such as Staphylococcus aureus, Escherichia coli, Lactobacillus casei and Candida albicans. The sour tea is made through 12 days fermentation of Fig Leaves with kombucha. Antimicrobial assay has been performed using the agar well diffusion method. From the test results, the mean of inhibition zone against Escherichia coli is 6,97 mm, Staphylococcus aureus is 5,5 mm, Lactobacillus casei is 5,29 mm, and Candida albicans is 0,37 mm. Based on the research results, Fig Leaf sour tea can be used as an antimicrobial agent, especially as an antibacterial.
Pirolisis Sampah Plastik Jenis Polipropilena (PP) menjadi Bahan Bakar Cair-Premium-like Anisya Putri Islami; Sutrisno; Heriyanti
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 3 No. 2 (2019)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v3i22019p001

Abstract

The handling of plastic waste is still an environmental problem that requires attention. The conversionof plastic waste into liquid fuel is one of the solutions that are quite interesting to researchers. The purpose of this research was to convert polypropylene (PP) plastic waste into liquid fuel, premium-like, through the pyrolysis process. PP type plastic waste was pyrolyzed using a batch reactor equipped with a condenser. The liquid fuel yield obtained from 8 Kg of plastic is 63.375 % with a pyrolysis maximum temperature of 330 °C. The GC-MS analysis results show that the liquid fuel obtained still has a long carbon chain, namely C7-C54 with the main fraction is hydrocarbons with C11-C20. The calorific value of liquid fuel is 46,199 MJ / kg and the density value of 0.726 g/mL.

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