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INDONESIA
Indonesian Journal of Pure and Applied Chemistry
Published by Universitas Tanjungpura
ISSN : 26208571     EISSN : 2620858X     DOI : -
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Chemistry
Indonesian Journal of Pure and Applied Chemistry (IJoPAC) was first established in 2018 as a scientific journal that accommodates researchers and education practitioners to publish scientific work and research results which are the results of experiments or literature studies in the field of chemistry. Publications are carried out periodically with three issues (January-April, May-August, September-December) in one volume per year. Published scientific work can be in the form of original articles, short communications and review results covering the fields of Physical chemistry, Organic chemistry, Analytical chemistry, Inorganic chemistry, Biochemistry / Biological Chemistry, Applied Chemistry. Focus and Scope of Indonesian Journal of Pure and Applied Chemistry covering the fields : Physical chemistry Organic chemistry Analytical chemistry Inorganic chemistry Biochemistry/Biological Chemistry Applied Chemistry
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 5 Documents
 1 
Search results for , issue "Vol 6, No 2 (2023)" : 5 Documents clear
POTENSI FRAKSI ETIL ASETAT KULIT BATANG KESAMBI SEBAGAI ANTIBAKTERI TERHADAP Escherichia coli THE POTENTIAL OF ETHYL ACETATE FRACTION OF KESAMBI STEM AS ANTIBACTERIAL AGAINST Escherichia coli Afif Hidayatul Mustafid; Yeyen Maryani; Sri Agustina; Boima Situmeang
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 2 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i2.63497

Abstract

In our previous research, ethyl acetate extract of kesambi stem bark have the highest antibacterial activity against Escherichia coli compared with n-hexane and methanol extract. In our present study, we report the antibacterial activity of fractions from ethyl acetate extract against Escherichia coli. The method of fractionation used coloumn and thin lawyer chromatography. The Antibacterial activity uses Kirby Bauer methods. The characterization of active fractions used spectrometer infrared. The result showed fractions 6 and 7 have the highest antibacterial activity with inhibition zone 11.65 and 7.1 mm. The characterization of fractions 6 and 7 showed fungtional groups C=O, O-H, and C=C. The ethyl acetate fraction has the potential as antibacterial materials.
SINTESIS GEOPOLIMER DENGAN BAHAN DASAR KAOLIN CAPKALA SEBAGAI ADSORBEN ION Pb(II) DALAM LARUTAN (SYNTHESIS OF GEOPOLYMERS WITH BASE MATERIALS KAOLIN CAPKALA AS ADSORBENT ION Pb(II) IN SOLUTION) Nur Ridha An Nisa; Intan Syahbanu; Winda Rahmalia; Nurlina Nurlina
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 2 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i2.62731

Abstract

Geopolymer synthesis was carried out using kaolin, for the adsorption of Pb (II) ions in solutions. Kaolin is used by Kaolin Capkala from Bengkayang Regency, West Kalimantan. This kaolin was first modified into metakaolin. The scaling up of geopolymers is carried out by making an activating solution, namely by mixing NaOH and Na2SiO3. The activating solution is mixed into metakaolin. The mass composition of each component in the geopolymer: metakaolin of 94,5 grams, Na2SiO3 of 57 grams, NaOH of 12 grams, and H2O of 30 grams. The formed geopolymers are tested for their adsorption ability against Pb(II) ions. The research results show the success of geopolymer formation as indicated by FTIR and XRD characterization results. Based on the FTIR results, several indications of successful geopolymer formation are seen in the shift and widening of the Si-O absorption peak at wave number 1109 cm-1 for kaolin to 1058 cm-1 for metakaolin and 1016 cm-1 for geopolymer; the appearance of O-C-O bond absorption in CO32- at 1362 cm-1 in geopolymer; and a shift in absorption of Al-O (Al (VI), wherein kaolin it is indicated by a wave number of 536 cm-1 while in metakaolin it is characterized by a wave number of 544 cm-1 and for geopolymer a wave number of 553 cm-1 indicates it. XRD diffractogram of the formation hump's appearance shows the amorphous characteristics of metakaolin and geopolymer at around 2θ 26o-35o. The application of geopolymer for Pb adsorption shows that Pb(II) can be adsorbed well in geopolymers with the maximum adsorption capacity of 2.77 mg/ g obtained at various concentrations of 40 ppm.
AKTIVITAS ANTIRAYAP DARI EKSTRAK METANOL GUBAL KAYU GAHARU BUAYA (Aetoxylon sympetalum) TERHADAP RAYAP TANAH (Coptotermes sp.) (ANTITERMITE ACTIVITY OF METHANOL EXTRACT AGARWOOD BUAYA (Aetoxylon sympetalum) ON SUBTERRANEAN TERMITES (Coptotermes sp.)) Khairunnisa Asyari; Afghani Jayuska; Muhamad Agus Wibowo; Puji Ardiningsih
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 2 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i2.62269

Abstract

Agarwood buaya (Aetoxylon sympetalum) is a Kalimantan endemic plant whose utilization has not been optimal. This plant has potential as an anti-termite, one of which is sapwood. This study aims to determine the content of secondary metabolites from the results of phytochemical screening, components of agarwood buaya sapwood based on GC-MS analysis fraction n-hexane and anti-termite activity against subterranean termites (Coptotermes sp.). Research that has been done is divided into four steps, maceration and fractionation, phytochemical screening, GC-MS analysis, and testing the activity of termites using a forced feeding test method. Crude methanol extract from 1 kg of dried agarwood buaya sapwood was 240.787 g (24.0787%), consisting of 0.8339% n-hexane fraction, 86.3663% chloroform fraction, and 0.7571% methanol fraction. The results of phytochemical screening on agarwood buaya sapwood extract showed that it contained flavonoid, terpenoid, steroid, and phenolic compounds. Identification of the components of agarwood buaya sapwood fraction n-hexane through GC-MS yielded compounds a4-chloro-6-methoxy-2-methylquinolin-8-amine (10.33%), stigmasterol among other (5.94%), n-hexa-decanoic acid (3.2%), 6-octa-decenoic acid (2.99%), and 1,2-Benzene-diol, 3,5-bis(1,1-dimethyl-ethyl) (2.01%). Termite activity test was carried out for 3 days with variations in the concentration of 0% (negative control), 0.1%, 0.2%, 0.3%, 0.4% (w/v), and 0.25% (v/v) (fibronil as positive control). The results of anti-termite testing show the most active fraction was the methanol fraction (LC50 0.146%) followed by the chloroform fraction (LC50 0.167%), methanol crude extract (LC50 0.192%), and the n-hexane fraction (LC50 0.208%).
REVIEW SENYAWA BIOAKTIF DAN KONSTITUEN KIMIA DARI TANAMAN COLEUS SEBAGAI KANDIDAT OBAT (REVIEW OF BIOACTIVE COMPOUNDS AND CHEMICAL CONSTITUENTS FROM COLEUS PLANTS AS DRUG CANDIDATES) Dian Natasya; Marsella Oktavioni; Yusnaidar Yusnaidar; Indra Lasmana Tarigan
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 2 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i2.65149

Abstract

Miana plants (Coleus) are plants with compound interest types. Miana leaves have various bioactive compounds and are widely used to treat various diseases such as fever, colds, coughs, headaches, asthma, constipation, and skin diseases. There are several types of miana plants, such as Coleus scutellarioides (L.) Benth., Coleus aromaticus Benth., Coleus atropurpureus (L.) Benth. and Coleus blumei benth. This review aims to review the content of bioactive compounds and chemical constituents of the plant and its potential as a drug candidate. The method applied to the review articles is in the form of literature studies from national and international journals. Based on the data used, the n-hexane extract of miana leaves found 11 chemical compounds. Then based on the phytochemical screening of miana plants, several bioactive compounds were produced such as sterols, terpenoids, alkaloids, phenols, flavonoids, amino acids, glycosides, lactones, catechols, and tannins. The function of the Coleus aromaticus plant is as an antioxidant, antiepileptic, antiurolytic, anticancer, antidiabetic, anthelmintic, antiviral, antiprotozoal activity, the inhibitory activity of microorganisms, against digestive diseases, respiratory disorders, and against cardiovascular disorders
KAJIAN KETAHANAN BETON DENGAN TAMBAHAN CAMPURAN FLY ASH DAN LIMBAH KARBIT DALAM MEDIA ASAM DAN GARAM (DURABILITY STUDY OF SELF COMPACTING CONCRETE WITH ADDED A MIXTURE OF FLY ASH AND CALCIUM CARBIDE WASTE IN ACID AND SALT MEDIUM) Illen Stevani; Titin Anita Zaharah; Imelda Hotmarisi Silalahi
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 2 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i2.62858

Abstract

Cement is one of the building blocks of concrete. However, it releases about one ton of carbon dioxide (CO2) gas for every ton of cement produced. Therefore, it is necessary to replace cement in the manufacture of concrete. It is known that a mixture of fly ash and calcium carbide waste has a chemical composition that resembles cement containing silica, alumina, and calcium oxide compounds so that it has the potential to replace cement in making self-compacting concrete. This research was conducted by utilising fly ash waste and carbide waste as additional materials to replace the use of cement by 35% in self compacting concrete. The composition of the waste used in the concrete mix in this study consisted of 25% fly ash waste and 10% calcium carbide waste. Analysis of the elemental composition of self-compacting concrete containing fly ash and calcium carbide waste was obtained from XRF data, the compressive strength of self-compacting concrete samples was tested, their resistance in acid and salt media was studied through the results of compressive strength test analysis, then compared with self-compacting concrete containing 100% cement. The XRF results showed that the elemental composition of the mixture of fly ash, calcium carbide waste, and cement was similar to that of cement alone, but the CaO and SiO2 content of the mixture was still higher than that of cement alone. Based on the compressive strength test analysis results, it was found that the compressive strength values of the self-compacting concrete samples were lower than the compressive strength values of the control of self-compacting concrete samples (cement only). Self-compacting concrete samples soaked in acid and salt media for 28 days showed a decrease in compressive strength, both in self compacting concrete containing a mixture of fly ash, calcium carbide waste, and cement, and concrete containing only cement. The compressive strength values of the fly ash and calcium carbide waste on self-compacting concrete samples in this study were at the range of 28 MPa to 29 MPa, still within the SNI 2847-2019 quality standard, which is the normal concrete quality standard with a compressive force of 15-30 MPa, even though they have been exposed to acid or salt. This allows efforts in replacing cement in self compacting concrete by adding the composition of fly ash waste and calcium carbide waste.

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