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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 93 Documents
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KARAKTERISASI SENYAWA FENOLIK DARI BIJI BUAH RAMBUTAN (Nephelium lappaceum L.) Eka Pebri Malinda; Rudiyansyah Rudiyansyah; Ajuk Sapar
Indonesian Journal of Pure and Applied Chemistry Vol 2, No 3 (2019)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (696.123 KB) | DOI: 10.26418/indonesian.v2i3.36890

Abstract

Rambutan seeds are one of the waste produced from rambutan that is potential to be used in the food and pharmaceutical fields because it is rich in nutrients and secondary metabolites. This research was carried out to characterize phenolic compounds from the ethyl acetate fraction by using chromatographic methods, phytochemical tests, and 1H-NMR analysis. The isolate was obtained as white powder with 6.2 mg and gave positive sign for phenolic by phytochemical test. 1H-NMR spectrum data (CD3OD, 500 MHz) showed the chemical shift characteristic of coumarin compounds at δH (ppm): 7.82 (1H, d, J= 8.3 Hz), 7.39 (1H, d, J= 7.55 Hz), 6.73 (1H, d, J= 8.05 Hz), and 5.61 (1H, d, J= 7.55 Hz), an anomeric proton at δH 4.8-5 ppm, the characteristics of the methyl group of L-rhamnose sugar at δH 1.29 ppm and other sugar protons at δH 3-4 ppm. Based on the 1H-NMR analysis and comparison with literature, a phenolic compound obtained from rambutan (Nephelium lappaceum L.) seeds is                            7-O-β-L-rhamnose-8-hydroxycoumarin or 8-O-β-L-rhamnose-7-hydroxycoumarin.
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.
GREEN SYNTHESIS NANOPARTIKEL PERAK MENGGUNAKAN EKSTRAK DAUN PUCUK IDAT (Cratoxylum glaucum) SEBAGAI BIOREDUKTOR Verry Andre Fabiani; Febry Sutanti; Desti Silvia; Megawati Ayu Putri
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 2 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.449 KB) | DOI: 10.26418/indonesian.v1i2.30533

Abstract

An environment friendly technique for green synthesis of silver nanoparticles has been reported. Silver nanoparticle have been synthesized using water extract of leaves of pucuk idat (Cratoxylum glaucum), commonly known as local Bangka plant. The flavonoid and tannin present in the extract act as reducing agent. AgNO3 0,05 M solution was reducing using the extract at room temperature by stirring. Color changing of the solution was detected at 30 minutes reaction time. The color tends to be darker by the increasing of reaction time. Various techniques used to characterize synthesized nanoparticles are UV-Visible spectrophotometer, x-ray diffraction (XRD) and scanning electron microscopy (SEM). UV-Visible spectrophotometer showed absorbance peak in 405 nm, the XRD shows that silver nanoparticles formed are crystalline. The average particle size of Ag nanoparticles estimated from the Scherrer formula is 35,59 nm, while SEM image shows shape of silver nanoparticle is random and some spherical shape.
SINTESIS, UJI AKTIVITAS ANTIOKSIDAN DAN ANTIKANKER SENYAWA 3′,4′-DIMETHOXY FLAVONOL Muhamad Rokim
Indonesian Journal of Pure and Applied Chemistry Vol 2, No 1 (2019)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2199.46 KB) | DOI: 10.26418/indonesian.v2i1.36921

Abstract

3′,4′-dimethoxy flavonol have been synthesized from 3,4-dimethoxy-2’-hydroxychalcon under basic condition (KOH). The structures of all compounds were characterized based on the interpretation of HPLC chromatorgrams and spectroscopic data including UV, FTIR, NMR and HRMS. Antioxidant activity was evaluated using the DPPH assay and anticancer activity was evaluated using the MTS assay which showed that the 3′,4′-dimethoxy flavonol was active as antioxidants and weak anticancer activity.
KARAKTERISASI STRUKTUR TRITERPENOID DARI AKAR TANAMAN LANGSAT (Lansium domesticum) (CHARACTERIZATION OF TRITERPENOID STRUCTURE FROM LEAN PLANT (Lansium domesticum)) Rizki Triadi; Rudiyansyah Rudiyansyah; Andi Hairil Alimuddin
Indonesian Journal of Pure and Applied Chemistry Vol 4, No 1 (2021)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (732.088 KB) | DOI: 10.26418/indonesian.v4i1.45237

Abstract

Langsat root is a part of Lansium domesticum which is still rarely explored for its secondary metabolites. Triterpenoids are dominantly isolated from langsat plants. This research was conducted to isolate and characterize a triterpenoid structure by doing maceration and partition, phytochemical test, chromatography, and analysis of 1H-NMR spectrum. GKGT2 isolate is a white powder with a mass of 4 mg. 1H-NMR spectrum data (CD3OD, 500 MHz) shows an oxiran proton signal at H 4.13. The hydroxyl proton at C-1 with a chemical shift of 7.83 (1H, s) is a sharp singlet because a hydrogen bond strongly with the carbonyl at C-16. The presence of a singlet proton at H 5.85 (1H) and signals below 2 ppm are typical for terpenoid compounds. On the basis of a phytochemical test and chemical shift data in 1H-NMR spectrum, it can be concluded that a structure of GKGT2 isolate showed many similarities to Dukunolida C.
ANALISIS UKURAN PARTIKEL SILIKA HASIL EKSTRAKSI DARI BATU PADAS ASAL KABUPATEN KETAPANG KALIMANTAN BARAT Risya Sasri; Nurlina Nurlina; Lia Destiarti; Intan Syahbanu
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (228.15 KB) | DOI: 10.26418/indonesian.v1i1.26042

Abstract

Analysis of particle size of silica was extracted from rocks from Ketapang Regency, West Kalimantan based on characterization using scanning electron microscope (SEM) have been carried out. The analysis was performed to determine the particle size change in extraction silica without and with activation using acid solution. SEM image processing was performed on a 10 μm scale at 350x magnification through the image-J software to determine the particle size distribution. The results of the analysis showed that the area and diameter of the silica particle extracted from rocks were 3,935 μm2 and 3,147 μm (without activation) and 4,28 μm2 and 3,267 μm (activated) respectively.
PENGARUH PENAMBAHAN JENIS DAN KONSENTRASI PLASTICIZER TERHADAP KUALITAS BIOPLASTIK BERBASIS SELULOSA DARI TANDAN KOSONG KELAPA SAWIT Cindy Andahera; Isni Sholikhah; Deah Ayu Islamiati; Memik Dian Pusfitasari
Indonesian Journal of Pure and Applied Chemistry Vol 2, No 2 (2019)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (700.683 KB) | DOI: 10.26418/indonesian.v2i2.36901

Abstract

Plastic is a material that commonly used in daily activities. The increasing of using plastic can increase the amount of plastic waste that can give a negative impact on environment. One effort to solve the problem is by replacing plastic material with a material that convenient degraded by soil, that’s called bioplastic. Bioplastic has a biodegradable characteristic and it is 67% compostable. One of the raw material to producing bioplastic is cellulose. Cellulose can be found in non-food plants such as woods, because most of them contain 40-45% cellulose. Oil palm is the one of the plants which is the cellulose taken by utilize oil palm empty fruit bunch. On the other hand, plasticizer must be added for producing bioplastic to make plastic has elastic characteristic. Sorbitol, Glycerol, Oleic Acid are types of plasticizer. In this research, bioplastic is producing by using solution casting method by addition of plasticizer. With these methods indicates that by using sorbitol as plasticizer is more suitable than glycerol and oleic acid. By using 30% v/v sorbitol can get the optimum quality of bioplastic with 58,7% mass reduction using degradation-analysis during 4 days, and maximum attraction which can be detained is 6,27 kPa
KARAKTERISASI KOMPONEN DESTILAT MINYAK SEREH WANGI (Cymbopogon nardus l. Rendle) DARI KECAMATAN KUALA BEHE KABUPATEN LANDAK Omarta Omarta; Afghani Jayuska; Imelda Hotmarisi Silalahi
Indonesian Journal of Pure and Applied Chemistry Vol 3, No 3 (2020)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (483.822 KB) | DOI: 10.26418/indonesian.v3i3.44155

Abstract

Tanaman Sereh Wangi (Cymbopogon nardus l. Rendle) merupakan tanaman dari famili Poaceae yang telah lama dikenal sebagai penghasil minyak atsiri. Pemanfaatan minyak atsiri sereh wangi telah banyak diteliti sebagai pestisida nabati. Penelitian ini bertujuan untuk mengetahui persen rendemen minyak sereh wangi dan mengetahui pengaruh variasi suhu dan waktu fraksinasi terhadap komposisi senyawa yang terkandung dalam minyak sereh wangi. Minyak sereh wangi yang digunakan berwarna kuning pucat jernih dengan dengan berat jenis 0,8662 gram. Hasil identifikasi GC-MS menunjukkan bahwa minyak sereh wangi sebelum didestilasi mengandung 10 puncak senyawa dengan 3 puncak senyawa mayor berdasarkan  area dominan yaitu alpha-pinene 79,07%; beta-ocimene 8,80%; dan sitronelal 6,42 %. Hasil fraksi minyak setelah didestilasi yaitu pada destilat pertama luas area alpha-pinene 90,38%; beta-ocimene 5,42%; dan sitronelal 0,47%. Destilat kedua alpha-pinene 88,11%; beta-ocimene 6,88%; dan sitronelal 0,63%. Destilat ketiga alpha-pinene 84,37%; beta-ocimene 9,40%; dan sitronelal 0,98%
SINTESIS DAN KARAKTERISASI SILIKA GEL DARI LIMBAH KACA SERTA APLIKASINYA PADA KROMATOGRAFI KOLOM Verry Andre Fabiani; Nelly Wahyuni; Ridho Brilliantoro; Mellisa Nurul Safitri
Indonesian Journal of Pure and Applied Chemistry Vol 1, No 1 (2018)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (232.94 KB) | DOI: 10.26418/indonesian.v1i1.26038

Abstract

Silica gel synthesis from glass waste have been carried out with activation and purification method by using hydrochloride acid. Hydrochloride acid were varied 8 N, 10 N, and 12 N to observe optimum concentration in purification of silica gel and component separation in chromatography column. Gravimetric analysis result showed 12 N hydrochloride acid produce ~100 % silica. XRD and FTIR analysis revealed that synthetic gel silica was amorphous where its IR absorption bands were at 3426 cm-1, 1620 cm-1, 1080 cm-1, 772 cm-1 and 478 cm-1. The absorption bands agreed to standard gel silica and spectrum. The most effective HCl in gel silica synthesis was 12 N, caused by its ability to separate color component in a column. The synthetic silica that can be applied as stationary phase in column chromatography.

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