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Qualitative Protein Hydrolyzed from Nerita undata in supralittoral rocks and mezolittoral zone of Hasa Cape using TLC 用薄层色谱法对哈萨角滨海上岩和滨海带褐藻中的蛋白质进行了定性水解
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-kai
Healthy Kainama, H. J. Sohilait, Christian Jacob Souisa
{"title":"Qualitative Protein Hydrolyzed from Nerita undata in supralittoral rocks and mezolittoral zone of Hasa Cape using TLC","authors":"Healthy Kainama, H. J. Sohilait, Christian Jacob Souisa","doi":"10.30598//ijcr.2020.9-kai","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-kai","url":null,"abstract":"Gastropods are the sources of protein for coastal communities in the Maluku islands. We conducted analysis quantitative and qualitative of protein in Nerita undata meat from Hasa Cape in Saparua Island. The percentage of protein was analyzed by the Kjeldahl method. Qualitative analysis began with breaking peptide bonds in protein to amino acid components by sulphuric acid and barium hydroxide hydrolyzed. We identified amino acid compounds by using thin-layer chromatography (TLC) in butanol-acetic acid-water (8:1:1, v/v) as eluent. The result showed that N. undata meat contains 11.15% of protein and twelve amino acid compounds. There are seven essential amino acids in N. undata meat from supralittoral rocks and mezolittoral zone of Hasa cape is a source of quality protein. Thus, this species can be considered as a source of high-quality protein.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84487593","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Analysis of Silica From Rice Husks Siam Unus from South Kalimantan 南加里曼丹暹罗稻壳中二氧化硅的分析
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-muj
D. R. Mujiyanti, D. Ariyani, Muna Lisa
{"title":"The Analysis of Silica From Rice Husks Siam Unus from South Kalimantan","authors":"D. R. Mujiyanti, D. Ariyani, Muna Lisa","doi":"10.30598//ijcr.2020.9-muj","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-muj","url":null,"abstract":"Research on analysis of rice husk content of Siam Unus with various NaOH concentrations (1.0 M; 1.5 M; 2.0 M; 2.5 M; 3.0 M) has been done. This study aims to obtain data on the effect of variations in NaOH concentration on the purity of the silica extract from Siam Unus rice husks and silica characterization of Siam Unus rice husks using Fourier Transform Infra-Red (FTIR) and X-ray fluorescence spectrometry (XRF). The results showed that the combustion of rice husks at 200 °C as optimum temperature for 1 hour followed by combustion at 600 °C for 4 hours produces grayish-white rice husks with a yield is 20.70%. Silica functional group characterization showed that silanol (Si-OH) and siloxane (Si-O-Si) as dominant functional groups. The result of composition characterization using XRF showed that SiO2 as the dominant compound with the highest percentage of SiO2 is 1.5 M NaOH extract at 42.80%.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"7 5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77405675","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Liquid Smoke Fractionation from Dry Distillation of Styrofoam Board Waste to Produces Liquid Fuel 从聚苯乙烯泡沫板废料干馏中分离液体烟以生产液体燃料
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-dew
I. D. K. Anom
{"title":"Liquid Smoke Fractionation from Dry Distillation of Styrofoam Board Waste to Produces Liquid Fuel","authors":"I. D. K. Anom","doi":"10.30598//ijcr.2020.9-dew","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-dew","url":null,"abstract":"Styrofoam waste is difficult to be decomposed by bacteria or microorganisms. Therefore it takes a long time to be decomposed naturally. Styrofoam waste, in general, is a big problem for the survival of living things on earth because there are quite a lot of them. So, if not handled properly can cause environmental pollution. Styrofoam waste is inorganic waste composed of polymers derived from chemicals. Additives from styrofoam are harmful to humans because they are carcinogenic. This study aims to utilize Styrofoam board waste into liquid fuel. Liquid fuel from styrofoam waste has been made successfully through dry distillation and fractionation methods. The result of fractional distillation is 42.00% liquid fuel. Based on the physical properties tests that have already been carried out, including the density test, viscosity,  flash point, boiling point, calorific value, and octane number, it turns out that the liquid has characteristics close to the standard gasoline fuel. The MS spectra and the GC chromatogram show that the liquid fuel consists of a mixture of hydrocarbon compounds, namely acetone 0.23%, acetic acid 0.40%, benzene 2.82%, toluene 3.56%, heptane 1.04%, 1-octene 0.26%, butyl ester 4.92%, 2,4-dimethyl-1-heptane 0.32%, p-xylene 13%, the compound with the highest composition was styrene 73.45%.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83963906","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Magnetite-Activated Carbon Composite to Reduce Pollutant: Review 磁铁矿-活性炭复合材料减少污染物研究进展
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-raf
M. Rafli, Reza Mega Wahyuni, Nilna Muna Zahiro, Wayan Dasna
{"title":"Magnetite-Activated Carbon Composite to Reduce Pollutant: Review","authors":"M. Rafli, Reza Mega Wahyuni, Nilna Muna Zahiro, Wayan Dasna","doi":"10.30598//ijcr.2020.9-raf","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-raf","url":null,"abstract":"Pollution is serious environmental problem. One of causes of pollution is the presence of heavy metals. Besides heavy metal, there are plastics that cause serious problem in environment because they are difficult to decompose. These two problems appear an idea about synthesizing activated carbon-magnetite (Fe3O4) composite based on polyethylene that can absorbs heavy metals. The method used literature review of relevant articles. This study examines the properties of magnetite both physical and chemical along with applications and benefits of magnetite in daily life. This study can become a new perspective effort to reduce heavy metals pollution using plastic waste as composite with Fe3O4","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"3 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75127206","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Isolation of Lycopene Component from Tamarillo (Solanum betaceum) 柽柳番茄红素成分的分离
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-dam
J. Damayanti, Ririn Azmilia, Zul Ainun, R. Amin, M. Nurdin
{"title":"Isolation of Lycopene Component from Tamarillo (Solanum betaceum)","authors":"J. Damayanti, Ririn Azmilia, Zul Ainun, R. Amin, M. Nurdin","doi":"10.30598//ijcr.2020.9-dam","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-dam","url":null,"abstract":"Lycopene is a red pigment found in tamarillo with its function as an antioxidant that protects body cells from the negative effects of free radicals so that they do not trigger diseases, especially cancer and premature aging. This study was intended to improve the quality of tamarillo by isolating lycopene from tamarillo through an extraction process with chloroform as a solvent by maceration for 3 days at room temperature. The lycopene extract obtained was dissolved by means of a rotary evaporator at 40 oC under vacuum pressure and oven temperature at 60 oC. The lycopene obtained was analyzed by Gas Chromatography-Mass Spectrometry and the crystal structure of lycopene was characterized by Fourier Transform Infra-Red Spectroscopy. GCMS results showed that 0.21 g of lycopene was successfully isolated from 100 g of dried red tamarillo fruit powder. Functional group analysis using FT-IR at a wavelength of 978.23 cm-1 showed the R-CH=CH-R group; the -CH3- group of 1371.43 cm-1; the 1460.16 cm-1 indicates the bending vibration of -CH2-; the C=C chain of 1656.91 and 1745.64 cm-1; and the   C-H of 2856.67 and 2926.11 cm-1 of the lycopene chain.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"388 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74954461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Study of Molecular Docking of Alkaloid Derivative Compounds from Stem Karamunting (Rhodomyrtus tomentosa)Against α-Glucosidase Enzymes 甘露茎生物碱衍生物对α-葡萄糖苷酶的分子对接研究
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-bud
Budi Mulyati, Riong seulina Panjaitan
{"title":"Study of Molecular Docking of Alkaloid Derivative Compounds from Stem Karamunting (Rhodomyrtus tomentosa)Against α-Glucosidase Enzymes","authors":"Budi Mulyati, Riong seulina Panjaitan","doi":"10.30598//ijcr.2020.9-bud","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-bud","url":null,"abstract":"Karamunting plant (Rhodomyrtus tomentosa) is a traditional medicinal plant. The leaves, roots, stems, and fruits of Karamunting have been identified, and their biological activities are antioxidants, antibacterial, antidiabetic, anti-inflammatory, and anticancer that contained alkaloids, tannins, and flavonoids. The types of alkaloids found in karamunting stems are homolycorine, ismine, lycorine, maritidine and tazetine. This study aims to determine the binding score of alkaloid-derived compounds with protein α-glucosidase and determine the protein's active site bound to the ligand. The method used in this research is Protein-Ligand ANT-System (PLANTS).  The results showed that the anchoring score of homolycorine was -60.83 kcal/mol, ismine -64.42 kcal/mol, lycorine -71.20 kcal/mol, maritidine -61.82 kcal/mol, and tazetine -65.02 kcal/mol. The active sites used for binding are Glu526, Gly555, and Pro556. The average score for anchoring alkaloid-derived compounds with protein α-glucosidase is 83.84%. This number indicates that karamunting stems can be used as antidiabetic.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"348 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77626296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
The Computational Calculation and Molecular Docking of Aeroplysinin-1 As Antibacterial 航空溶菌素-1抗菌作用的计算与分子对接
Indo. J. Chem. Res. Pub Date : 2021-09-30 DOI: 10.30598//ijcr.2020.9-mir
M. Maahury, Veliyana Londong Allo
{"title":"The Computational Calculation and Molecular Docking of Aeroplysinin-1 As Antibacterial","authors":"M. Maahury, Veliyana Londong Allo","doi":"10.30598//ijcr.2020.9-mir","DOIUrl":"https://doi.org/10.30598//ijcr.2020.9-mir","url":null,"abstract":"Aeroplysinin-1 is naturally found from marine sponges as an anti-bacterial compound. Computational calculation and molecular docking were performed for aeroplysinin. Aeroplysinin as an inhibitor has optimized in the gas phase using DFT with 6-31G(d) functional. The structure from geometry optimization of aeroplysinin-1is, not in one plane. The interaction of aeroplysinin-1 with two different DNA gyrase from E. Coli and S. Aureus. In this research,aeroplysinin-1 can inhibit the protein with the free binding energy of about -5.7 kcal/mol and -6.35 kcal/mol, respectively, for E. Coli and S. Aureus. The dominant molecular interaction is the hydrogen bond.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"118 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77445842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Synthesis of Methyl Ester Nitrate from Mahogany Seed Oil (Swietenia mahagoni Linn) 红木籽油合成硝酸甲酯的研究
Indo. J. Chem. Res. Pub Date : 2021-06-09 DOI: 10.30598//ijcr.2021.9-rus
R. Musta, L. Nurliana, Muh. Mahatir Halulanga
{"title":"Synthesis of Methyl Ester Nitrate from Mahogany Seed Oil (Swietenia mahagoni Linn)","authors":"R. Musta, L. Nurliana, Muh. Mahatir Halulanga","doi":"10.30598//ijcr.2021.9-rus","DOIUrl":"https://doi.org/10.30598//ijcr.2021.9-rus","url":null,"abstract":"Nitration of methyl ester from mahogany oil (Swietenia mahagoniLinn) can be produced by Methyl Ester Nitrate (MEN), an additive that is useful for increasing Cetane Numbers in diesel fuel. This study aims to determine the yield of MEN that can be produced from mahogany seed oil after esterification, trans-esterification, and nitration and to identify the MEN compounds produced. Mahogany oil is obtained by pressing mahogany seeds and then degumming to remove the gum. Mahogany oil-free gum is esterified using methanol with the mole ratio of oil: methanol (1: 6), then trans-esterified, also using methanol with mole ratio (1:15) and a methyl ester is obtained. Then the methyl ester was nitrated with HNO3, sulfuric acid, and acetic anhydride to obtain a translucent reddish colored MEN product with a yield of 24.99%. The success of the synthesis was shown by the FTIR spectrophotometer in the presence of absorption at 1550 cm-1 which indicated the presence of the C-ONO2 group, the absorption at 1365 cm-1 indicated the presence of the NO2 group, and at 1118 cm-1 indicated the presence of the C-N group. The reaction mechanism that occurs during the predicted nitration reaction is an electrophilic substitution reaction and nucleophilic addition.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"157 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73925738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Pyrolysis Reaction Kinetics of Styrofoam Plastic Waste 聚苯乙烯泡沫塑料废弃物热解反应动力学研究
Indo. J. Chem. Res. Pub Date : 2021-06-06 DOI: 10.30598//ijcr.2021.9-fey
Feybi A. G. Kauwo, I. D. K. Anom, J. Z. Lombok
{"title":"Pyrolysis Reaction Kinetics of Styrofoam Plastic Waste","authors":"Feybi A. G. Kauwo, I. D. K. Anom, J. Z. Lombok","doi":"10.30598//ijcr.2021.9-fey","DOIUrl":"https://doi.org/10.30598//ijcr.2021.9-fey","url":null,"abstract":"Pyrolysis at the temperature range of 170 °C-237 °C against polystyrene (Styrofoam) type plastic waste is carried out without a catalyst and added a catalyst. The purpose of this research was to study the reaction kinetics of Styrofoam pyrolysis to liquid smoke products. Pyrolysis using a series of tools made of glass to observe the processes that occur in the reactor. The results showed that Styrofoam pyrolysis for liquid smoke products without catalyst and added catalyst took place in the first-order reaction. The kinetics of the pyrolysis reaction without a catalyst to observe the formation of liquid smoke products obtained by the equation of the reaction constant following the Arrhenius equation k = Ae2111.4 / T, with an activation energy value (Ea) of 17.554 x 103 kJ/mol and pyrolysis using a catalyst obtained k = Ae10330/T, with an activation energy value (Ea) of 85.883x103 kJ/mol. Using catalysts during pyrolysis will reduce the temperature so that the reaction will be slow.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85069436","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Density Functional Theory for QSAR Antioxidant Compound Myristicin Derivatives QSAR抗氧化剂复合肉豆蔻素衍生物的密度泛函理论
Indo. J. Chem. Res. Pub Date : 2021-06-05 DOI: 10.30598//ijcr.2021.9-mul
M. Muliadi, Mudzuna Quraisyah Basimin, A. M. Jayali
{"title":"Density Functional Theory for QSAR Antioxidant Compound Myristicin Derivatives","authors":"M. Muliadi, Mudzuna Quraisyah Basimin, A. M. Jayali","doi":"10.30598//ijcr.2021.9-mul","DOIUrl":"https://doi.org/10.30598//ijcr.2021.9-mul","url":null,"abstract":"This research was conducted to determine the molecular structure modeling and the quantitative relationship of the activity structure (QSAR) of substituted myristicin derivatives with electron donor groups such as -C6H5 (M1), -NH2 (M2), -Cl (M3), -F (M4), and -H (M5). The results of geometry optimization with the DFT (Density Fractal Theory) method or density functional calculations calculated with the density level of B3LYP/6-31G each obtained the total energy of each compound M1- M5: M1: 175.49 kcal/mol M2: 132.707 kcal/mol, M3: 115.701 kcal/mol, M4: 116.048 kcal/mol, M5: 121.377 kcal/mol. Determining the relationship between descriptors and the antioxidant activity (IC50) for basic structure myristicin compounds and five derivatives was carried out using SPSS 21. The results of the correlation analysis showed that there was a relationship between the descriptors and antioxidant activity. Determining the best QSAR equation model is done by analyzing multiple linear and multilinear regression using IBM SPSS 21. The results of multiple linear regression analysis or multilinear regression obtained for the best QSAR equation model are: Log P = -2.600 + (0.006) IW- (1.558) qC8 - (6.532) EHOMO + (0.014) PSA + (0.133) MD with n = 6, R = 1.000, R2 = 0.926, SE = 0.","PeriodicalId":13392,"journal":{"name":"Indo. J. Chem. Res.","volume":"82 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77660750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
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