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JOURNAL OF CHEMICAL NATURAL RESOURCES (JCNaR)
Published by TALENTA PUBLISHER
ISSN : -     EISSN : 26561492     DOI : https://doi.org/10.32734/jcnar.v4i1.9353
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology
Journal of Chemical Natural Resources (JCNaR) is a peer-reviewed biannual journal (February and August) published by TALENTA as an open access journal. The aim of the journal is to provide a medium to exchange ideas and information related to research and knowledge in disciplines of organic chemistry, biochemistry, analytical chemistry, inorganic chemistry and physical chemistry. The journal also receives systematic reviews, meta- analysis and review article on the new issues in the fields of chemistry and natural sciences. Submission to this journal implies that the manuscript has not been published or under consideration to be published in another journal.
Arjuna Subject : Kimia(semua kategori) - Kimia Organik
Articles 132 Documents
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Fabrication of Bioethanol via Fermentation from Cellulose of Kepok Banana (Musa Paradisiaca L.) Using Bread's Yeast (Saccharomyces cerevisiae) Naufal, A. Dzaki; Nasution, Rumondang Bulan
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11964

Abstract

Bioethanol has been made by fermentation of the cellulose of Kepok banana stems, where this study went through 3 stages. First-stage isolation of cellulose from Kepok banana prevents using HNO3 and NaNO2, removal of swelling with NaOH and Na2SO3, and bleaching process (bleaching) using NaOCl and H2O2, then functional group analysis was performed with FT-IR. The second stage of cellulose obtained was hydrolysed with 1% HCl for 120 minutes of hydrolysis time. The resulting glucose was analysed by Benedict's reagent and the Luff-Schrool method. The third stage of glucose solution results from fermented hydrolysis using bread yeast (Saccharomyces cerevisiae) with variations in the weight of yeast 5, 6, and 7 grams, and the duration of fermentation is five days. Bioethanol obtained was tested qualitatively using K2CrO7 and H2SO4 reagents and bioethanol characterisation using GC. The study results obtained 10.18% glucose levels, and the highest levels of bioethanol were obtained at 11.27% with 88.53% purity using 7 g of yeast.
Manufacture and Use of Mesoporous Magnesium Silicate for Increasing Vitamin E Concentrate from Candlenut Oil Bangun, Nimpan; Simanjuntak, Benri
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11965

Abstract

Magnesium silicate 75, magnesium silicate 90, and magnesium silicate MgO have been synthesized to increase the concentration of vitamin E from candlenut oil. The reaction of MgO and SiO2 synthesizes the adsorbent magnesium silicate—X H2O by hydrothermal method. The magnesium silicate obtained was characterized by BET, showing the pore size of the three different types of adsorbents, namely magnesium silicate 75 (6.118 nm), magnesium silicate 90 (6.248 nm), and magnesium silicate MgO (3.2238 nm). The adsorbent is used to increase the concentration of vitamin E in candlenut oil. Pecan oil is dissolved with n-hexane in a ratio of 1: 1 in a column containing the adsorbent. After the n-hexane descends from the column tool, vacuum to remove the solvent. Then the results are collected into vials. Then vitamin E levels wer measured by HPLC using standard Tocopherol and tocotrienol. The results of the HPLC test obtained a comparison of the three types of adsorbents' ability to increase levels of vitamin E from candlenut oil, where the adsorbent of magnesium silicate MgO can only increase vitamin E levels which were 429 ppm to 248.72 ppm (0.57 times enriched). In contrast, the magnesium silicate adsorbents 75 and 90 can increase vitamin E levels from 429 ppm to 733.73 ppm (1. 71 times improved) and 855.97 ppm (1.99 times enriched).
Isolation of Flavonoids Compounds from Kesumba Keling Leaves (Bixa orellana L.) Lenny, Sovia; Sihombing, Debynati; Marpaung, Lamek
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11966

Abstract

Isolation of flavonoid compounds from leaves of Kesumba Keling (Bixa orellana L.). Extraction has been done with maceration by methanol solvent. The concentrated extract of methanol was added with ethyl acetate. The concentrated ethyl acetate extract was then dissolved with methanol and partitioned with n-hexane. The concentrated methanol extract was acidified by 6% HCl, then partition extracted with chloroform. The concentrated chloroform extract was separated by column chromatography with eluent n-hexane: ethyl acetate 90:10; 80:20; 70:30; 60:40; 50:50 (v/ v). The compounds were purified with TLC preparative yielding yellow gum weighing 29.7 mg with Rf=0.51. The compound was further identified by Ultraviolet-Visible spectroscopy (UV-Vis), Fourier Transform Infra Red Spectroscopy (FT-IR), and Proton Nuclear Magnetic Resonance Spectroscopy (1H-NMR). Spectroscopic data show that the compound was isoflavone.
Effect of Natural Zeolite Powder on Physical and Mechanical Properties of PP-g-MA Particle Boards and Divinylbenzene Using Palm Oil Stem Powder with Soaking Chloroacetic Acid 3% Yugia Muis; Een Melani Harahap
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11967

Abstract

The effect of natural zeolite stem on physical and mechanical properties of particle boards from PP-g-MA and divinylbenzene with palm stem oil has been conducted soaked with 3% chloroacetic acid. It was performed in three steps. The first was soaking palm oil trunk in 3% chloroacetic acid for 24 hours, then filtering and rinsing until neutral. The second was polypropylene functionalization with maleic anhydride to form PP-gM A with the reflux method. PP-g-MA degree of grafting, melting point, and FT-IR analysis analyzed MA. The degree of grafting maleic anhydride of polypropylene was 9 .467 %, 1 62.06 o C melting point used for particle board adhesive. The third was particle board manufacture consisting of palm oil trunk, polypropylene, PP-g-MA, benzoyl peroxide, divinyl benzene, and zeolite with ratios of (7 0: 4 0: 3 0:2: 3: 0)g, (70: 4 0: 3 0:2:3 :3 )g, (70: 4 0: 3 0:2: 3: 6) g, (70: 4 0: 3 0:2: 3: 9 ) g, (70: 4 0: 3 0:2: 3: 12) g and (70: 4 0: 3 0:2: 3: 15) g as specimens I, II, III, IV, V, VI respectively. Physical and mechanical analysis for particle boards based on SNI 03-2105-2006 includes density, water content, swelling, modulus of rupture, and modulus of elasticity. SEM was used to analyze broken fragments of boards. From the characterizations obtained, specimen I V was the best result. All of the physical properties' values matched with particle board quality standard, with the value of MoE being 32438.53 KgF/cm2. The value of MoR was 86.50 KgF/cm2; SEM analysis showed an effect of zeolite on particle boards.
Fabrication of Synthetic Zeolite from Sinabung Mountain Volcanic Ash via Sol-Gel Method Lumban Raja, Saur; Simatupang, Eka Bonita
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11968

Abstract

Fabrication of synthetic zeolite from Sinabung Mountain volcanic ash by Sol-Gel method. The zeolite is obtained by extraction of alkalis sodium silicate and sodium aluminate. At first volcanic ash was characterized using XRF and XRD analyses. The XRF analysis shows that silica is 44.8%. In contrast, XRD analysis showed a sharp peak at a 2Ѳ corner area of 27.55o to express bonded with silica mineral salt. At the same time, the silica characterization is done by FT-IR analysis. The FT-IR analysis shows the presence of Si-O-Si groups at wave numbers 1064.71 cm-1, 786.96 cm-1 and Si-OH at wave 3749.62 cm-1 and 3448.72 cm-1, identifying the presence of silica. The synthetic zeolite characterization analysis obtained is FT-IR, XRD, SEM-EDX, and BET analysis. In the FT-IR analysis, the O-Si-O group was obtained at wave 987,85 cm-1 and O-Al-O at wave 447,89-585,30 cm-1, identifying X zeolite. Diffractogram XRD showed a sharp peak at 66.8°, 28.12°, and 45.84°, forming mixed crystalline X and zeolite A. SEM-EDX analysis shows that zeolite morphology is tight and homogeneous and has a high aluminium content of 24.79 and Si 16.12. While for nitrogen desorption, adsorption analysis on pore size, surface area and pore volume are 3,22 nm, 61,86 m2/g and 0,095 cc/g. The result of synthetic zeolite isotherm adsorption-desorption shows type V showing mesoporous size.
Determination of Copper and Zinc Content in Soil Based on Soil Position and Depth in Palm and Rambutan Garden Area Perangin Angin, Elsa Sucita; Chairuddin
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11969

Abstract

The determination of copper and zinc in soil based on the position and depth at the application land of palm oil in the Rambutan garden. Part of control land, between rorak and plant, and rorak at a depth of 0-20 cm, 20-40 cm and 40-60 cm. Each 3 g soil sample was destructed with 10 mL of HNO3 concentrated at 180ºC for 20 minutes. Cu and Zn's content was determined using Atomic Absorption Spectroscopy (AAS) at wavelength 324.7 nm and  213.9 nm, respectively. The analysis shows that Cu and Zn metal increase rorak at 84.0% and 57.7%, and soil between rorak and plant at 76.9% and 42.4%.
Comparative Study of Lead (Pb) Levels on the Goats Liver at Industrial and Non-Industrial Areas Using Atomic Absorption Spectrophotometry Method Chairuddin; PURBA, NORA MARIHOT; Bangun, Ahmad Darwin
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11970

Abstract

The comparison of Lead in goat liver in an industrial and non-industrial area. The goat liver was drily digested, and then the ash of the goat liver dissolved with HNO3(p). Qualitative test using Inductively Coupled Plasma – Optical Emission (ICP – OES) where the sample results obtained I (Industrial area) = 0.088 ppm, sample II (Industrial area) = 0.080 ppm, sample III (Industrial area) = 0.086 ppm and sample IV (Non-Industrial area) = 0.022 ppm and Quantitative test determination of Pb content using Atomic Absorption Spectrophotometry (AAS) at a wavelength for Pb 217.0 nm. The result of the determination showed that the content in Lead of sample A (Non-Industrial Area) = 0.4585 mg/Kg, sample B (Non-Industrial Area) = 0.4490 mg/Kg, sample C (Industrial area) = 0.8761 mg/Kg and sample D (Industrial area) = 0.8622 mg/Kg. However, Pb of metal content fulfilled SNI 7387:2009 that 1.0 mg/Kg.
Isolation and Identification of Flavonoids from Mundu Plant Leaves (Garcinia Dulcis (Roxb.) Kurz) Hutagalung, Natalia; Sembiring, Helmina Br.
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11971

Abstract

Isolation and identification of the flavonoid compounds found in the leaves of the mundu plant (Garcinia dulcis (Roxb.) Kurz) have been carried out. The leaves of the mundu plant were extracted by maceration with methanol solvent. The concentrated methanol extract was added to distilled water and then filtered. Aquadest filtrate partitioned with ethyl acetate. Concentrated ethyl acetate extract was dissolved with methanol and partitioned with n-hexane solvent. The concentrated methanol extract was analyzed by thin layer chromatography and separated by column chromatography with chloroform as eluent: methanol (90:10) v/v ; (80;20) v/v ; (70:30) v/v ; (60:40) v/v. The compounds obtained were purified by preparative thin layer chromatography, producing a yellow amorphous solid of 8.4 mg with a value of Rf = 0.35 using chloroform: ethyl acetate (40:60) v/v as the eluent. The compounds obtained were analyzed using UV-Visible Spectrophotometer, Infrared Spectrophotometer (FT-IR), and Proton Nuclear Magnetic Resonance Spectrophotometer ( 1H-NMR). Based on the analysis and interpretation of spectroscopic data, it is suspected that the isolated compounds obtained are flavonoid compounds, namely the biflavonoid group.
Isolation and Identification of Phenolic Compounds from Ebony Plant Leaves (Diospyros celebica Bakh.) Purba, Yuni Romasni; Sembiring, Helmina Br.
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11972

Abstract

Isolation of phenolic compounds from Ebony plant leaves (Diospyros celebica Bakh .) was done by maceration technique with methanol solvent. The concentrated extract of methanol dissolved with distilled water and partition was extracted with ethyl acetate. The concentrated ethyl acetate extract dissolved with methanol solvent and partitioned with n-hexane. Then Thin layer chromatography was analyzed before column chromatography, and the eluent suitable for separation is chloroform: methanol 90:10, 80:20, 70:30,60:40,50:50 (v/v) as mobile phase. The compounds were purified with a thin layer preparative and crystallization yielding yellow paste weighing 7.5 mg with Rf = 0.45. The test purity of compounds is done by thin layer  chromatography showing a single spot with eluent chloroform: ethyl acetate (50:50) v/v and n-hexane: ethyl acetate ( 80:20) v/v. The following compound was further indicated by Ultraviolet-Visible Spectrophotometer (UV-Vis), Fourier Transform Infra Red Spectrophotometer (FT-IR), and Proton Nuclear Magnetic Resonancy Spectrophotometer (1H-NMR) was estimated as a phenolic methyl gallate, phenolic acid.
Analysis of Fatty Acid Composition Using GC-MS Method and Antibacterial Activity Test of n-Hexane Extract from Petai Seeds (Parkia speciosa Hassk.) Marpaung, Lamek; Sinaga, Rio Maretanto
Journal of Chemical Natural Resources Vol. 4 No. 2 (2022): Journal of Chemical Natural Resources
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jcnar.v4i2.11973

Abstract

Analysis of fatty acid composition using GC-MS method and antibacterial activity test of n-hexane extract from Petai seed (Parkia speciosa Hassk.) has been performed. Fatty acid was extracted from petai seed by maceration method using n-hexane solvent to produce n-hexane extract converted into fatty acid methyl ester through a methanolysis reaction. Then fatty acid composition was analyzed using the GC-MS method. The result of GC-MS analysis showed that the fatty acid composition found in 760 gr petai seeds which produced 11.16 g of fatty acids, was 1.0088 gr palmitic acid methyl ester (9.04%), 1.2700 gr linoleic acid methyl ester (11.38 %), 7.3556 gr oleic acid methyl ester (65.91%) and 1.4887 gr stearic acid methyl ester (13.34%). The antibacterial activity test showed that all concentrations of n-hexane extracts of 50 mg/ml, 150 mg/ml, and 250 mg/ml tested were able to inhibit the growth of E. coli and S. aureus bacteria in n-hexane extract, wherein the inhibited zone by the n-hexane extract is included in the weak category (≤14 mm) except at the concentration of 250 mg/ml in the S. aureus test bacteria belonging to the medium type (15-19 mm).

Page 8 of 14 | Total Record : 132

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