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Fullerene Journal of Chemistry
Published by Universitas Negeri Manado
ISSN : 25981269     EISSN : 25985868     DOI : -
Core Subject : Science,
Chemistry
Fullerene Journal Of Chemistry is an chemistry indonesian journal presented by chemistry department, State University of Manado.
Arjuna Subject : -
Articles 160 Documents
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Optimasi Penggunaan Sistem Preparasi Berbantuan Gelombang Mikro pada Analisis Logam Timbal dalam Ikan Tuna Kemasan Kaleng secara Spektrofotometri Serapan Atom Lena Bitha; Jefry Winokan
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.203

Abstract

In this paper, an efficient and rapid acid digestion method using microwave preparation system (MPS Titan 100) was to optimize and validate for determination of Lead content in canned tuna sample. The sample were digested in 6 variation of acids combination including HNO3, H2O2, and H2SO4. The digested samples were subjected to flame atomic absorption spectrophotometer for determination of Lead. The method was validated for linearity, precision, accuracy, limit of detection and limit of quantification. The optimized method showed good regression, r = 0.9997. The limit of detection and limit of quantification were found to be 0.54446 ppm and 1.8148 ppm, respectively. Precision of the method was checked by % RSD with result 0.27%. Accuracy of the method was indicated by % recovery study and resulting 109.24 % for Lead analysis. This analytical results were agreed well, as confirmed by the accepted range according to standards and guidelines. This procedure was applied to the determination lead in canned tuna sample and resulting 0.6951 ppm for A sample, 0,4634 ppm for B sample and 0.7073 ppm for C sample.
Isolation and Identification Of Glycoside Compounds from n-Butanol Fraction of Red Pakoba (Syzygium sp.) Gabriel Reinhard Kahiking; Rymond Rumampuk; Emma Pongoh
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.152

Abstract

The red pakoba (Syzygium sp.) is a plant originating from north sulawesi that is often used by local people as a basic ingridient of medicine. This research was conducted to isolate and identify glycoside compounds contained in the n-butanol fraction of red pakoba fruits (Syzygium sp.). The isolation process was carried out using the maceration method, for the separation and purification of compounds using Thin Layer Chromatography (TLC) and Gravity Column Chromatography and obtained F2.4 sub-fraction isolates with a sample weight of 4.5 mg. Identification of compound using Proton Nuclear Magnetic Resonance (NMR-1H) and Carbon Nuclear Magnetic Resonance (NMR-13C) tecniques. The result of identification of isolate F2.4 sub-fraction as flavonoid glycoside compounds with the proposed name 3-O-methyl-butyrate-6,7,3',4' tetrahydroxy-5-methoxy-8-methyl flavan with molecular formula (C22H25O8)
Uji Aktivitas Antioksidan Ekstrak Etanol Batang Daun dan Bunga Jumpai (Glinus oppositifolius (L.) Aug. DC.) Astuti Amin; Andi Paluseri; Rahmat Priyandi Linggotu
Jurnal Kimia Fullerene Vol 6 No 1 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i1.237

Abstract

Jumpai (Glinus Oppoitifolius (L.) Aug. DC) contains flavonoids compounds that can act as antioxidants by donating hydrogen so as to stabilize the lack of electrons in free radicals. This study aims to determine the antioxidant potential of stem, leaf, and flower extracts by looking at the IC50 value. The stems, leaves, and flowers were extracted by maceration using 70% l ethanol solvent. The results of the antioxidant activity test using the DPPH method (2,2-diphenyl-1-picrilhydrazil) showed very strong antioxidant activity with IC50 values of 9.523 µg / ml stem, 32.89 µg / ml leaves, and 23.07 µg / ml flowers with vitamin comparisons. C obtained IC50 value of 1,698 µg / ml. Based on these results, it can be rejected that the stems, leaves, and flowers have antioxidant activity with a very strong category against DPPH free radicals (2,2-diphenyl-1-picrilhydrazil).
Potensi Ekstrak Biji Pangi (Pangium edule Reinw) sebagai Pengawet Alami Pada Ikan Mujair (Oreochromis mossambicus) Iren Natalia Simanjuntak; Rudi Alexander Repi; Emma Mauren Moko; Meity Nelltje Tanor; Debby Jacqueline Jochebed Rayer
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.204

Abstract

Mujair fish (Oreochromis mossambicus) is a freshwater fish that is commonly consumed. This is due that they are easily found and obtrained and with a price in fresh markets that are relatively cheap. Unfortunately, this fish happens to be a very perishable commodity, due to it’s sensitiveness to spoilage because of its high protein content and moisture content. Pangi seeds (Pangium edule) is known to contain tanines, natural polyphenols that inhibits microorganisms through their cell wall permeability. The purpose of this research was to test the potential of pangi seeds crude extract as natural pangi seed toxiti preservatives on mujair fish, shelf life potential on mujair fish. This was achieved by marinating the fish in crude pangi seed extracts at concentrations of 0% (control), 5% and 10% and then store for 4 days at room temperature. Parameters tested on this research includes cyanide identification BSLT toxicity testing and fish spoilage (degradation) through protein changes and pH. Results of this research indicated that pangi seeds crude extract does not contain any cyanide of whatsoever, pangi seed crude extract toxicity testing indicated thatit was not toxic to a concentration of 128233mg/L, meanwhile protein analysis indicated that the optimum concentration of pangi seed crude extract to inhibit fish spoilage is 10% while in terms of pH degradation, the optimum concentration was 5%.
Identifikasi Mineral Pasir Tiga Warna Pantai Puntaru Kabupaten Alor-NTT Martasiana Karbeka; Herianus Manimoy; Bertho A Abolasinga
Jurnal Kimia Fullerene Vol 6 No 1 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i1.258

Abstract

Puntaru beach is famous for its three-colored sand that is mixed into one of them reddish-brown, black, and white sand. Research on the mineral composition of the tricolor sand has been conducted so that the use of three-colored sand is still done traditionally. This study aims to obtain information on the silica content and other mineral compositions of the three-colored sand of Puntaru Beach as initial data for further development. The three-color sand preparation process is carried out by the method of milling / crushing sand samples then sieving and washing with H2O. Stages of characterization of silica in three-colored sand were carried out using X-ray fluorescence (XRF), X-ray powder diffraction (XRD), and Fourier-transform infrared (FTIR). The analysis showed that the percentage of Si was the most dominant 45.28%, followed by Fe 25.94% and other minor elements. XRD results show that the three-colored sand contains quartz mineral (SiO2) identified at the main peak with 2 with in the 24.34 ° area. The black color of the sand is influenced by Fe content of 25.94% with hematite metal oxide (Fe2O3) 15.80% and reddish-brown influenced by the presence of sulfur (3.25%) in the form of mineral SO3 4.32%.
Sintesis dan Karakterisasi Nanopartikel Zn Menggunakan Kitosan Sebagai Reduktor Astuti Amin; Sri Reski Ananda
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.208

Abstract

Zn nanoparticles is a material that is widely used in the pharmaceutical and cosmetic industry, as a sunscreen, skin whitening, and anti-aging. The aim of the research was to synthesize Zn nanoparticles using chitosan as a stabilizer by chemical reduction method and determine the effect of chitosan amount on the stability of Zn nanoparticles. This research, the raw material used is shrimp shell powder and then processed in several stages, eliminating proteins, demineralization, and deacetylation. Chitosan obtained is 22,8 % of shrimp shell powder, with a degree of deacetylation is 85 %. Chitosan was used to synthesize Zn nanoparticles as a reducing agent of Zn ions in the ZnO solution and was expected to be a stabilizer. The measurement using Atomic Absorption Spectroscopy (AAS) shows that the concentrate of Zn in solution synthesis result of 13,88 mg/l, based on the UV-Vis spectrophotometry obtained maximum wavelength of 355,71 nm and absorbance of 0,062, the shapes of the nanoparticles obtained tend to aggregate. Based on measurements by Particle Size Analyzer (PSA) which has been synthesized Zn nanoparticles have the average size of the particles in the sample is 213,41 nm.
Analisis Kandungan Mineral Pasir Pantai Bajul Mati Kabupaten Malang Menggunakan XRF dan XRD Sumari Sumari; Yana Fajar Prakasa; Muhammad Roy Asrori; Dinar Rachmadika Baharintasari
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.154

Abstract

Mineral exploration in Indonesia has not been evenly distributed, so a study with title analysis of the sand mineral content of Bajul Mati Malang Regency was carried out using XRF and XRD. The aims of this study to determine the percentage of mineral that containing in the sand of Bajul Mati beach in Malang Regency. The instruments used XRF and XRD where the samples were placed in a sample holder and irradiated with X-rays then. The result of analysis of mineral content and metal oxide in Bajul Mati beach sand showed that the beach sand of Bajul Mati has the big potential to be used as a base for making nanomaterials. The results of analysis of XRF showed that the content of SiO2 was 46.7% and the results of analysis of XRD showed that the SiO2 mineral has the quartz phased. Bajul Mati beach sand has the potential to be a source of mineral material.
Review: Modification of Nanocellulose as Conjugate of Infection-Causing Antibacterial Hydrogel Anisa Anisa; Metik Ambarwati; Anggi Ayunda Triani; Indra Lasmana Tarigan
Jurnal Kimia Fullerene Vol 6 No 1 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i1.241

Abstract

Infection is the process of entering and reproducing microorganisms such as bacteria, viruses, fungi, and parasites that cause tissue injury. Some of the common types of bacteria that play a role in wound infection are Pseudomonas aeruginosa, Staphylococcus aureus, Escherichia coli, and Staphylococcus epidermis. The antibacterial able to inhibit bacterial growth by inhibiting cell wall biosynthesis, increasing the permeability of the bacterial cytoplasmic membrane, and interfering with the normal bacterial protein synthesis. The aim of this review article is to conduct a study of nanocellulose as an antibacterial hydrogel conjugate. The method used is to summarize information from various recent journals related to nanocellulose, nanocellulose modification, nanocellulose-based hydrogels, and their application as antibacterial. Some journals from primary sources such as the PMC system (PubMed Central), National Library of Medicine (NIH), Science Direct, Elsevier, Nature, ACS Chemical Society, and several other sources. Nanocellulose consists of β-1, 4-glucose, and there are three hydroxyls active at the C2, C3, and C6 positions of the pyranose attachment. Nanocellulose can respond by the reaction of oxidation, esterification, or etherification, by adding a new functional group. Nanocellulose can become nanocellulose nanocrystals (CNC), cellulose nanofibers (NFC), and nanocellulose bacteria (BNC). Nanocellulose formulated in the form of hydrogels and combined with antibiotics will increase the effectiveness in reducing the risk of infection that is resistant to antibiotics.
Efektivitas Cangkang Telur untuk Menurunkan Bilangan Peroksida dan Asam Lemak Bebas pada Minyak Jelantah Fauzi Abdilah; Mentik Hulupi
Jurnal Kimia Fullerene Vol 5 No 2 (2020): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v5i2.209

Abstract

Minyak jelantah mengandung berbagai pengotor yang dapat menyebabkan berbagai masalah kesehatan dan lingkungan. Pada penelitian ini dilakukan pemurnian minyak jelantah untuk menurunkan kadar asam lemak bebas dan bilangan peroksida dengan menggunakan adsorben berbasis cangkang telur ayam (CTA) pada berbagai variasi temperatur kalsinasi. Proses persiapan adsorben dilakukan dengan menggunakan furnace elektrik selama 2 jam pada suhu 200, 400, 600 dan 800oC. Proses adsorpsi dilakukan selama 1 jam dengan pengadukan. Analisis yang dilakukan pada penelitian ini adalah analisis kualitas adsorben dan karakterisasi gugus fungsi dengan menggunakan FTIR (Fourier-transform infrared spectroscopy). Analisis kadar asam lemak bebas dan bilangan peroksida dilakukan dengan metode titrasi. Hasil penelitian menunjukkan bahwa adsorben CTA pada suhu kalsinasi 800oC (AE800) memberikan kualitas adsorben terbaik. Hasil karakterisasi menggunakan FTIR menunjukkan adanya puncak baru pada bilangan gelombang 3640 cm-1. Hasil pengukuran kadar asam lemak bebas dan bilangan peroksida adsorben AE800 mencapai 54,74% dan 65,79%. Hasil penelitian ini menunjukkan bahwa temperatur kalsinasi sangat mempengaruhi karakteristik adsorben dan CTA memiliki potensi untuk dikembangkan sebagai adsorben untuk meningkatkan kualitas minyak jelantah dan bahan baku pembuatan katalis berbasis CaO.
Treatment of Dye Wastewater from Batik Industry by Coconut Shell Activated Carbon Adsorption Aulia Qisti; Yudhi Utomo; Deni Ainur Rokhim
Jurnal Kimia Fullerene Vol 6 No 1 (2021): Fullerene Journal of Chemistry
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37033/fjc.v6i1.213

Abstract

Batik is a characteristic Indonesian textile product. The color of batik is one component that affects the quality of batik. Various types of batik dyes, one of which is remazol dyes. Remazol dyes are synthetic dyes that have strong chemical bonds. This is what underlies the process of production of the household batik industry in the village of Purwosekar, District of Tajinan, Malang Regency, with remazol coloring will produce liquid waste that is difficult to be deciphered naturally. This study aims to provide a water treatment solution using the coconut shell activated carbon adsorption method with chemical activation and the ability to adsorb remazol dyes. Adsorption experiments were carried out in batches with a mesh size of 8 with coconut shell carbon activated with 1 M HCl solution for 24 hours. The absorption of remazol dyes by coconut shell activated charcoal is carried out with a stirring speed variation for 60 minutes and the mass of activated charcoal to find the optimum adsorption conditions. Stirring speed variations are 30 rpm, 60 rpm, and 90 rpm, resulting in the highest efficiency at a speed of 90 rpm. While the variations in mass are 200 grams and 300 grams, the highest efficiency is obtained with a mass of 300 grams. Thus, the efficiency of the coconut shell activated carbon is proportional to the stirring speed and mass of the coconut shell activated carbon used

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