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Ajuk Sapar
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anthoni.b.aritonang@chemistry.untan.ac.id
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Department of Chemistry, Faculty of Mathematics and Natural Sciences, Tanjungpura University Jl. Prof. Dr. Hadari Nawawi, Pontianak, Kalimantan Barat, Indonesia
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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 5, No 2 (2022)" : 5 Documents clear
KANDUNGAN TOTAL FENOL DALAM EKSTRAK METANOL DAN ETIL ASETAT Caulerpa racemosa (TOTAL PHENOL CONTENTS IN METHANOL AND ETHYL ACETATE EXTRACTS OF Caulerpa racemosa) ilmauwati Qurniasih; Ikha Safitri; Anthoni B. Aritonang; Warsidah Warsidah; Shifa Helena
Indonesian Journal of Pure and Applied Chemistry Vol 5, No 2 (2022)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (261.541 KB) | DOI: 10.26418/indonesian.v5i2.49068

Abstract

Caulerpa racemosa belongs to Chlorophyceae grow abundantly along Indonesian waters, including Kabung Island, West Kalimantan. This species has important role and is able to synthesize a wide range of bioactive compounds that are potential to be developed. However, their existence have not been used optimally. This study aims to determine the bioactive compound and evaluate total phenol contents in methanol and ethyl acetate of C. racemosa from Kabung Island. The methods in this study were maceration, phytochemicals, and Folin-Ciocalteau using Atomic Absorption Spectroscopy (AAS). The result showed that methanol and ethyl acetate extracts of C. racemosa contained alkaloids, flavonoids, saponins, phenols, and tannins. Thus, the total phenol content in ethyl acetate extracts was 0.077817 mgGAE/g while in methanol extract was 0.05682 mgGAE/g, respectively. This value was classified as low category.
KANDUNGAN FITOKIMIA DAN NILAI SUN PROTECTION FACTORS (SPF) PADA EKSTRAK METANOL Hypnea pannosa, Turbinaria decurrens, DAN Caulerpa serrulata. (PHYTOCHEMICAL CONTENT AND VALUE OF SUN PROTECTION FACTORS (SPF) IN METHANOL EXTRACTS OF Hypnea pannosa, Turbinaria decurrens, AND Caulerpa serrulata) Dewi Kartika Putri; Nora Idiawati; Mega Sari Juane Sofiana
Indonesian Journal of Pure and Applied Chemistry Vol 5, No 2 (2022)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.097 KB) | DOI: 10.26418/indonesian.v5i2.49170

Abstract

Seaweed grows abundantly in Indonesian waters. Seaweed is an important commodity and valuable for the cosmetic industry. The aim of this research was to determine the phytochemical content and SPF value of the methanol extract of seaweeds, namely Caulerpa serrulata, Turbinaria decurrens, and Hypnea pannosa. The sample was macerated with methanol solvent. The methanol extract of C. serrulata obtained the highest yield of 4.42 g. The results of phytochemical screening on C. serrulata, T. decurrens, and H. pannosa contains alkaloids, flavonoids, terpenoids, tannins, and saponins. The SPF of methanol extract was analyzed by UV-Vis Spectrophotometer. SPF values with a concentration of 100 ppm were obtained for C. serrulata (4.80), T. deccurens (0.81), and H. pannosa (0.80). The methanol extract from C. serrulata was the highest SPF. It was categorized in the moderate protection category.
ISOTERM ADSORPSI Pb(II) PADA KARBON AKTIF TEMPURUNG KELAPA DENGAN VARIASI KONSENTRASI AKTIVATOR NATRIUM BIKARBONAT (ISOTHERMAL ADSORPTION OF Pb(II) BY ACTIVATED CARBON WITH VARIATIONS IN CONCENTRATION OF SODIUM BICARBONATE) Erma Maruni; Nurlina Nurlina; Nelly Wahyuni
Indonesian Journal of Pure and Applied Chemistry Vol 5, No 2 (2022)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.306 KB) | DOI: 10.26418/indonesian.v5i2.52987

Abstract

 ABSTRACT  Activated carbon is a porous solid that contains 85-95% carbon. The study used coconut shells as carbon sources and sodium bicarbonate as activators. Sodium bicarbonate can release carbon dioxide (CO2), where the CO2 will be used as a carbon donor. The study aims to explain the properties of carbon, activated carbon (KA) and its performance test in the solutions of Pb(II) ions. Metallic lead is toxic, which can slow down the normal working of red blood cells so that it can cause anaemia and can also inhibit the biosynthesis of haemoglobin. The research phase starts from the pyrolysis of coconut shells (t =2 hours, T=230 oC) to carbon. Carbon is activated with the variated percentage of sodium bicarbonate from 0 % to 8% and soaked for 24 hours (KA 0%, KA 4% and KA 8%). Activated carbon is characterized by water content, ash content, uptake of iodine, and methylene blue following the SNI method. Carbon, KA 0%, KA 4% and KA 8% tested its performance as adsorbent ion Pb(II) from PbNO3 solution with concentrations of 5, 10, 15, 20 and 25 ppm. The results showed that the water content, ash levels, and uptake of blue methylene KA met SNI No. 06-3730-1995. The highest adsorption efficiency at five ppm Pb(II) of carbon = 86.87%, KA 4% = 99.01%  Isotherm adsorption of Pb(II) ions fitted to Langmuir for Carbon and KA 4% with K = 1.5044 L/g, am = 0.11 mg/g  and K= 4.9468 L/g, am = 1.0735 mg/g, respectively
IDENTIFIKASI KOMPONEN UTAMA MINYAK ATSIRI DAUN UJUNG ATAP (Baeckea frutescens L.) DAN UJI AKTIVITAS ANTIBAKTERI TERHADAP BAKTERI Escherichia coli IDENTIFICATION OF MAIN COMPONENTS OF LEAF TIP ESSENTIAL OIL (Baeckea frutescens L.) AND ANTIBACTERIAL ACTIVITY TEST AGAINST Escherichia coli BACTERIA Eka Wahyuni; M Agus Wibowo; Ajuk Sapar
Indonesian Journal of Pure and Applied Chemistry Vol 5, No 2 (2022)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (234.784 KB) | DOI: 10.26418/indonesian.v5i2.55595

Abstract

Baeckea frutescens L is a tropical plant that usually grows in coastal areas. Its leaves resemble needles with trees that resemble large pines. Baeckea frutescens L can be found in various regions in Indonesia, one of which is in Nanjung Village, Ketapang Regency, and West Kalimantan. Baeckea frutescens L essential oil was obtained by isolation using steam distillation. The results obtained from the isolation of the essential oil of Baeckea frutescens L was a yield of 0.0037% (v/v) and a density of 0.874 g/mL. Baeckea frutescens L essential oil was then analyzed using GC-MS. The results of the analysis showed that there were 32 compounds, with the main compounds being -ocimene, eucalyptol, -myrcene, -humulene, -terpineol. The results of the antibacterial activity test against Escherichia coli bacteria, concentrations of 5% (15.9 mm), 2.5% (15.6 mm), 1.25% (12.9 mm) and 0.625% (11.8 mm).
ISOLASI DAN KARAKTERISASI SENYAWA FENOLIK DARI DAUN PUTAT (Planchonia valida Blume) (ISOLATION AND CHARACTERIZATION OF PHENOLIC COMPOUND FROM PUTAT LEAVES (Planchonia valida Blume)) syafri syamsudin; Andi Hairil Alimuddin; Berlian Sitorus
Indonesian Journal of Pure and Applied Chemistry Vol 5, No 2 (2022)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (376.476 KB) | DOI: 10.26418/indonesian.v5i2.56554

Abstract

Gallic acid have been isolated from the leaves of the Putat plant (Planchonia valida Blume). This study aimed to isolate and characterize isolates from Putat leaves by phytochemical and FTIR spectrophotometry. The research procedures included extraction by maceration, partitioning by fractionation, vacuum liquid chromatography (KCV), gravity column chromatography (KKG), thin layer chromatography (TLC), and FTIR analysis. A total of 1400 grams of putat leaf powder was macerated to produce 159.243 grams (11.38%) of methanol extract. A total of 101 grams of methanol extract was dechlorophyllated to obtain 21.430 grams (21.21%) of dechlorophyllated extract. The dechlorophyllated extract was partitioned gradually with n-hexane and ethyl acetate to produce n-hexane fractions of 0.341 grams (1.591%), and ethyl acetate of 10.143 grams (47.33%), and methanol of 9.170 grams (42.79%). A phytochemical test showed that in the dechlorophyllated extract, the methanol and ethyl acetate fractions contained alkaloids, phenolics, flavonoids, and terpenoids while the n-hexane fraction contained alkaloids and flavonoids. A total of 7 grams of ethyl acetate fraction was fractionated by vacuum liquid chromatography to produce fractions B1 to B8. The B4 fraction was continued to the separation step by gravity column chromatography so that the fractions S1 to S9 were obtained. The S4 fraction was continued to the separation stage using preparative thin layer chromatography (TLC) to produce isolates S4.1 to S4.5. Isolate S4.1 was tested for purity by two-dimensional TLC showed that the isolate was not pure. The results of the phytochemical test with 5% FeCl3 spray reagent indicated a positive phenolic compound which was strengthened by FTIR characterization of the presence of –OH, -CH aromatic, -CH aliphatic, C=C, C=O and C-O goups. Based on these results, it was concluded that the isolate from the dechlorophyllated extract of Putat leaves belonged to phenolic compounds.

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