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Ajuk Sapar
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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 3, No 2 (2020)" : 5 Documents clear
UJI TOKSISITAS DAN PROFIL FTIR EKSTRAK METANOL SPONS Niphates olemda ASAL PULAU SAMALONA KEPULAUAN SPERMONDE (TOXICITY AND FTIR PROFILE OF SPONS METHANOL EXTRACT OF Niphates olemda FROM SAMALONA ISLANDS OF SPERMONDE ARCHIPELAGO) Ajuk Sapar; Alfian Noor; Nunuk Hariani Soekamto; Ahyar Ahmad
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 2 (2020)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (611.016 KB) | DOI: 10.26418/indonesian.v3i2.46517

Abstract

Preliminary research including toxicity testing, phytochemical test, and FTIR analysis of methanol extracts from sponge species Niphates olemda has been carried out. Small scale extraction was carried out on 23 g of the wet sponge sample using methanol and obtained as much as 40.3 mg of methanol extract. The results of the toxicity test using the BSLT method using Artemia salina showed that the Niphates olemda extract was toxic with LC50 value of 87.5 ppm.The phytochemical test results show that the methanol extract contains steroids and terpenoids. FTIR profile of methanol extract Niphates olemda indicated the presence of the main functional groups, namely C=O, OH, C=C, =CH, CH2, CH3, and C-O
KANDUNGAN MINERAL ESENSIAL PADA KERANG ALE-ALE (Meretrix sp.) SEGAR DAN TERFERMENTASI (ESSENTIAL MINERALS OF FRESH AND FERMENTED ALE-ALE CLAMS (Meretrix sp.)) Mega Sari Juane Sofiana; Ikha Safitri; Warsidah Warsidah; Syarif Irwan Nurdiansyah; Anthoni Batahan Aritonang; Shifa Helena; Kurniawan Alam Muza’ki
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 2 (2020)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (937.632 KB) | DOI: 10.26418/indonesian.v3i2.46492

Abstract

Ale-ale are popular clams in the coastal area of Ketapang. The local community uses the clams as food, one of which is in the form of fermented products. In the fermentation process, the nutritional content of course will be different from fresh ale-ale because it has gone through the preservation process. One of the goals of processing it into fermented products is to increase the product's durability. Essential mineral contents (Fe, Mn, Zn) in fermented products is different and tends to decrease. Essential mineral testing used the Atomic Absorption Spectroscopy (AAS) method. The water content and ash content of fresh ale-ale were 63.1% and 15.8%, respectively. While the water content and ash content of the fermented ale-ale were 68.69% and 17.2%, respectively. The essential mineral contents of fresh ale-ale obtained Fe 23 mg/kg, Zn 1.70 mg/kg and Mn 0.138 mg/kg. In fermented ale-ale, the content of Fe is 9.76 mg/kg, Zn is 0.740 mg/kg and Mn is 0.387 mg/kg.
EKSTRAKSI MINYAK KELAPA MURNI DENGAN METODE PENGADUKAN DAN COLD PRESSED Deni Pranata; Puji Ardiningsih; Winda Rahmalia; Nurlina Nurlina; Intan Syahbanu
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 2 (2020)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (357.9 KB) | DOI: 10.26418/indonesian.v3i2.46349

Abstract

Virgin coconut oil (VCO) was prepared by stirring and cold-pressed methods. This research aimed to study the effectiveness of both methods on VCO extraction. The first method was carried out by high-speed stirring to broke the coconut milk emulsion, and the second method was using the freezing and thawing technique. The physical appearance of VCO from both ways was clear, with a specific odor and taste of fresh coconut oil. The density of the VCO obtained by the stirring and cold-pressed method was 936 kg/m3 and 933 kg/m3, respectively. Physicochemical characterization shows that the cold-pressed process produces better properties of VCO.
PEMBUATAN DAN MODIFIKASI KARBON AKTIF PELEPAH KELAPA SAWIT (Cocus nucifera L.) SEBAGAI ADSORBEN METILEN BIRU (PREPARATION AND MODIFICATION OF ACTIVATED CARBON FROM PALM OIL (Cocus nucifera L.) AS ADSORBENT OF BLUE METHYLENE) Risma Achmad; St Fauziah; Muhammad Zakir
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 2 (2020)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (744.958 KB) | DOI: 10.26418/indonesian.v3i2.46309

Abstract

The methylene blue dye adsorbed by activated carbon from oil palm fronds modified with H2SO4 has been carried out. This study aims to utilize activated carbon from palm oil frond waste (Cocus nucifera L.) as an adsorbent to adsorb toxic methylene blue dye in textile industrial wastewater. The method consisted of several steps, namely: carbonization, carbon activation using 0.3M HCl activator, surface modification, and identification of functional groups using FTIR, characterization of the adsorbent material using SEM, BET, and surface area analysis with methylene blue. The optimal adsorption time of methylene blue by activated carbon is 20 minutes, longer than modified activated carbon which is 15 minutes. Adsorption of methylene blue by activated carbon and modified activated carbon according to the Langmuir isothermal model. The adsorption capacity of activated carbon was lower, namely 9.7847 mg / g compared to the adsorption capacity of modified activated carbon, which was 10.7642 mg / g. This proves that the active carbon modified by H2SO4 is better used as an adsorbent for adsorbing methylene blue dye
FOTODEGRADASI FENOL DALAM LEMPUNG TERPILAR TIO2 (PHOTODEGRADATION OF PHENOL ON TIO2-PILLARED-KAOLINITE Imelda H Silalahi; Nelly Wahyuni; Irwan Irwan
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 2 (2020)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (780.548 KB) | DOI: 10.26418/indonesian.v3i2.46491

Abstract

Photodegradation of phenol on TiO2-pillared-kaolinite was observed. Pillarization of kaolinite was conducted through intercalation of polyoxotitanium sol into clay suspension followed by calcination giving TiO2-kaolinite which showed an increase in specific surface area and total pore volume compared with the kaolinite. The analysis of XRD demonstrated no significant change on d-space of second order of kaolinite structure associated with 2q 26.61°, but diffractions with regard to 2q 25.3° and 48.0° interpreted for TiO2 anatase were seen on the diffractogram of TiO2-kaolinite. The significant decrease of phenol concentration was observed in the presence of both kaolinite and TiO2-kaolinite under UV illumination (hn  ³ 365 nm) compare with the photoreaction without the kaolinite materials however the degradation rate of phenol on TiO2-kaolinite was faster than that on the kaolinite-only where 50% of phenol was consumed after 45 minutes of reaction. Kinetic study showed the photoreaction of phenol on TiO2-kaolinite follows the first order reaction with the reaction rate constant of 1.8 x 10-2 min-1.

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