Journal of Chemical Natural Resources最新文献_第4页

Biosorption of Zn (II) Metal Ion by Ca-Alginate Immobilized Durian (Durio Zibethinus) Seed 海藻酸钙固定化榴莲种子对锌(II)金属离子的生物吸附

Journal of Chemical Natural Resources Pub Date : 2019-08-28 DOI: 10.32734/jcnar.v1i2.1254

I. Lestari

引用次数: 3

Gel Formulation of Ethyl Acetate Garlic Extraction and Its Activity Against Staphylococcus Epidermis 大蒜乙酸乙酯提取物凝胶配方及其抗表皮葡萄球菌活性研究

Journal of Chemical Natural Resources Pub Date : 2019-08-28 DOI: 10.32734/JCNAR.V1I2.1255

K. Khairan

引用次数: 4

Improving Porosity of Glycerol-plated Silica from Rice Husk Silica 改善稻壳二氧化硅中甘油镀二氧化硅的孔隙率

Journal of Chemical Natural Resources Pub Date : 2019-08-28 DOI: 10.32734/jcnar.v1i2.1257

S. L. Raja

引用次数: 1

Fabrication of Complex Polyelectrolyte Membrane of Chitosan-Pectin Crosslinked as Bioadsorbent 壳聚糖-果胶交联生物吸附剂复合聚电解质膜的制备

Journal of Chemical Natural Resources Pub Date : 2019-08-28 DOI: 10.32734/JCNAR.V1I2.1253

F. Silitonga

{"title":"Fabrication of Complex Polyelectrolyte Membrane of Chitosan-Pectin Crosslinked as Bioadsorbent","authors":"F. Silitonga","doi":"10.32734/JCNAR.V1I2.1253","DOIUrl":"https://doi.org/10.32734/JCNAR.V1I2.1253","url":null,"abstract":"Biopolymers are polymers fabricated from natural polymers which are biodegradable, non-toxic and renewable. This research was aimed to synthesize and characterize biopolymer made from chitosan and pectin and was made to be a membrane cross-linked with glutaraldehyde and then characterized. The chitosan-pectin crosslinked glutaraldehyde polyelectrolite complex (PEC) and membrane can be used as a bioadsorbent for metal and cationic dyes. Firstly, PEC membrane chitosan-pectin crosslinked glutaraldehyde was synthesized by dissolving chitosan in acetic acid and pectin in distilled water and added with glutaraldehyde as a crosslinked agent, then heated at 70 °C. The amount of 1M NaOH solution was added for 12 hours and then cleaned with distilled water and dried at room temperature. Subsequently, the membrane was characterized with FTIR spectrophotometer, medium acidity test, and water uptake. The results of the characterization of PEC mebmbrane chitosan-pectin crosslinked glutaraldehyde with FTIR showed the interaction between –NH3+ of chitosan with –COO- group of pectin at a wavelength of 1604.77 cm-1. The medium acidity test showed that the PEC membrane chitosan-pectin crosslinked with glutaraldehyde was stable at pH 3-9 with water absorption of 266.67%, with the composition of chitosan-pectine membrane of 70:30 with 30% glutaraldehyde","PeriodicalId":15309,"journal":{"name":"Journal of Chemical Natural Resources","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84749137","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

The Characteristics and The Making of Biopolymer Film from Oil Palm Trunk Starch (Elaeis guineensis Jacq.) Using Sorbitol Plasticizer 油棕树干淀粉生物聚合物膜的特性及制备使用山梨醇增塑剂

Journal of Chemical Natural Resources Pub Date : 2019-08-28 DOI: 10.32734/JCNAR.V1I2.1249

A. Hamzah

{"title":"The Characteristics and The Making of Biopolymer Film from Oil Palm Trunk Starch (Elaeis guineensis Jacq.) Using Sorbitol Plasticizer","authors":"A. Hamzah","doi":"10.32734/JCNAR.V1I2.1249","DOIUrl":"https://doi.org/10.32734/JCNAR.V1I2.1249","url":null,"abstract":"The research about of the biopolymers film from oil palm trunk starch had been done. Biopolymers film made by mixing of oil palm trunk starch (Elaeis guineensis Jacq.) and plasticizer sorbitol with the variation was 2:0,8 ; 2:1,0 ;2:1,2 (g/mL), then the film was molded on acrylic plate and dried in an oven at 40°C for 24 hours. The results of the film characterization show that the best variation of biopolymers on comparison 2:0,8 (g/mL) with the value of tensile strength was 4,26 MPa, percentage of elongation was 1,87 %, and film thickness was 0,16 mm, then it can be used as reference for addition 2 gram chitosan on the establishment of biopolymer film. It was characterized by tensile strength test with value was 14,00 MPa, pencentage of elongation with value was 3,20 %, and film thickness with value was 0,10 mm. The results of Differential Scanning Calorimetry (DSC) showed increasing of the endothermic temperature was 115,75 oC and exothermic temperature was 394,56 oC. The results of Thermal Gravimetry Analysis (TGA) showed that at a temperature of 340,1 0C the film to start decomposed. The value of % Swelling was 63,176%. The Fourier Transform Infra Red (FT-IR) result showed that in biopolymers film occurs physical interaction only. As well as, the antibacterial activity analysis showed that addition of chitosan on biopolymer film made Staphylococcus Aureus and Escherichia Coli bacterial was great inhibited with index antibacterial value of 0,625 respectively. From SEM analysis showed that film had been added by chitosan more homogenous than film without chitosan addition. The presence of chitosan addition tend to increase the physical and mechanical properties of biopolymer film.","PeriodicalId":15309,"journal":{"name":"Journal of Chemical Natural Resources","volume":"64 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76266514","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

The Characterization of Active Compound of Pedada Magrove Plants (Sonneratia caseolaris) Which HaveThePotential as Natural Antioxidants 具有天然抗氧化剂潜力的木犀草(Sonneratia caseolaris)活性化合物的研究

Journal of Chemical Natural Resources Pub Date : 2019-02-28 DOI: 10.32734/JCNAR.V1I1.829

M. Latief

引用次数: 1

Synthesis of 2-(4-Allyl-2-Methoxy Phenoxy)-N,N-Bis(2- Hydroxyethyl) Acetamide from the Transformation of Eugenol Isolated from Clove Oil 丁香油中丁香酚转化合成2-(4-烯丙基-2-甲氧基苯氧基)- n, n -双(2-羟乙基)乙酰胺

Journal of Chemical Natural Resources Pub Date : 2019-02-28 DOI: 10.32734/JCNAR.V1I1.832

M. Ginting

{"title":"Synthesis of 2-(4-Allyl-2-Methoxy Phenoxy)-N,N-Bis(2- Hydroxyethyl) Acetamide from the Transformation of Eugenol Isolated from Clove Oil","authors":"M. Ginting","doi":"10.32734/JCNAR.V1I1.832","DOIUrl":"https://doi.org/10.32734/JCNAR.V1I1.832","url":null,"abstract":"Eugenol as the main component of clove oil has been isolated through NaOH salting procedure followed by H2SO4hydrolysis, n-hexane partitioning and purification with vacuum distillation. 71% (v/v) eugenol was produced with purity of 97.70% based on gas chromatography analysis. 2-(4-allyl-2-methoxy phenoxy)-N,N-bis(2-hydroxyethyl) acetamide compound has the potential as antibacterial or substances for medicine in pharmaceutical can be synthesized from eugenol isolated through alkoxylation, esterification and followed by amidase. Alkoxylation was done using Williamson method through NaOH transformation of hydroxyl functional group in eugenol to form sodium eugenolate then with α-monochloroacetate substitution in reflux condition, eugenyl acetate was produced. The acid produced was extracted with ether/Na2CO3, followed by recrystallization using hot water and produced 70.52% solid form. Eugenyl acetate esterification with methanol in benzene solvent with H2SO4 catalyst in reflux condition produced methyl eugenol acetate liquid with 81.36% of yield. Amidase of methyl eugenol acetate with diethanolamine and sodium methoxide catalyst with methanol solvent in reflux condition. After purification, 2-(4-allyl-2-methoxy phenoxy)-N,N-bis(2-hydroxyethyl) acetamide compound in solid form is produced with 72.99% yield. Eugenol isolated, eugenyl acetate and methyl eugenol acetate had their structures analyzed with FT-IR spectroscopy while 2-(4-allyl-2-methoxy phenoxy)-N,N-bis(2-hydroxyethyl) acetamide compound was analysed using FT-IR and H1-NMR.","PeriodicalId":15309,"journal":{"name":"Journal of Chemical Natural Resources","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80832331","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: 5

The Isolation and Characterization of Phenolic Compound of Euphorbia Plant/Patikan Cina (Euphorbia thymifolia Linn) 大戟属植物(Euphorbia thymifolia Linn)酚类化合物的分离与表征

Journal of Chemical Natural Resources Pub Date : 2019-02-28 DOI: 10.32734/jcnar.v1i1.833

H. Amanda

{"title":"The Isolation and Characterization of Phenolic Compound of Euphorbia Plant/Patikan Cina (Euphorbia thymifolia Linn)","authors":"H. Amanda","doi":"10.32734/jcnar.v1i1.833","DOIUrl":"https://doi.org/10.32734/jcnar.v1i1.833","url":null,"abstract":"Euphorbia plant, Euphorbia thymifolia Linn, is one the Euphorbiaceae families that still need to be developed due to its benefits. An effort to be able to use this plant maximumly is by studying the active component in the plant. This study aims to isolate and characterize phenolic compound in euphorbia plant extract using ethyl acetate. 500 gram of euphorbia plant (Patikan Cina) powder was macerated using methanol. Then, the macerated extract was evaporated to eliminate excess solvent and as a result, a solvent-free extract was obtained. Next, the result was partitioned with a solution of methanol : ethyl acetate (1:1) in order to get methanol and ethyl acetate extracts. The ethyl acetate extract of the partition was evaporated to get concentrated ethyl acetate extract. Next, it was isolated in a vacuum liquid and gravitational column chromatography to get pure isolate. Silica gel 60 (0.040 – 0.063 mm) and n-hexane motion phase were used in the separation of concentrated ethyl acetate in vacuum liquid chromatography. There were 16 fractions produced from the yield. Then the fractions were put in TLC. With silica gel 60 (0.2 – 0.5 mm) mesh and n-hexane mobile phase, ethyl acetate gave 5 fractions in gravitational column chromatography and fraction 3 produced a single spot. UV and IR spectroscopy were used to determine the constituents in the isolate. From UV spectrum, max is 268.97 nm. While IR data shows the presence O-H group in 3521.38 cm-1, C – H (alkane) presents at wave number 2926.45 cm-1 reinforced by the appearance of 5 other alkanes absorption at 2857.00 cm-1, 1447.31 cm-1, 1370.18 cm-1, 868.774 cm-1 and 757.887 cm-1 wavelengths. There is also C = O (carbonyl) groups in wave number 1693.19 cm-1. The identification of structures based on UV and IR spectra data has shown that the isolate is a phenolic compound.","PeriodicalId":15309,"journal":{"name":"Journal of Chemical Natural Resources","volume":"50 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91447716","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

Structure Elucidation of an Pentacyclic Triterpenoid and Phenolic from Steam Bark of Vitex Pubescens Vahl 牡荆蒸汽树皮中一个五环三萜和酚类化合物的结构分析

Journal of Chemical Natural Resources Pub Date : 2019-02-28 DOI: 10.32734/jcnar.v1i1.837

L. Anwar

引用次数: 0

Synthesis of Polyurethane from Diphenyl Methane 4,4 Diisocyanate (Mdi) Polymerization with Hydroxilated Avocado Oil Polyol 二苯基甲烷4,4二异氰酸酯(Mdi)与羟基化鳄梨油多元醇聚合合成聚氨酯

Journal of Chemical Natural Resources Pub Date : 2019-02-28 DOI: 10.32734/JCNAR.V1I1.831

H. Sihotang

{"title":"Synthesis of Polyurethane from Diphenyl Methane 4,4 Diisocyanate (Mdi) Polymerization with Hydroxilated Avocado Oil Polyol","authors":"H. Sihotang","doi":"10.32734/JCNAR.V1I1.831","DOIUrl":"https://doi.org/10.32734/JCNAR.V1I1.831","url":null,"abstract":"Polymerization between polyol and isocyanate compounds produces polyurethane in different forms. Polyol used in this study utilized spoiled avocado as the oil source for polyol to produce polyurethane. Avocado oil was epoxidized with formic acid (HCOOH) and H2SO4 catalyst at 40 – 45oC followed by hydrolysis reaction to produce polyol reaction. Next polyol was purified and structure confirmation was done using FT-IR spectroscopy analysis. Polyol was then reacted with diphenylmethane 4,4 diisocyanate (MDI) with ratios of (polyol : MDI) 9:1; 8:2; 7:3; 6:4; and 5:5 (v/v) in a total volume of 10 mL with open air stirring at 40 – 45oC to produce polyurethane. Characterization for the form was observed visually followed by the determination of gel content, density and structure using FT-IR spectroscopy. The results of polyol from avocado oil reacted with diphenylmethane 4,4 diisocyanate for each of the mixing ratio to produce polyurethane is gel content of 74.63% to 99.80% where the higher MDI ratio is, the higher gel content becomes. Density determination from the polyurethane produced is between 0.1341 g/cm3 to 0.7220 g/cm3. FT-IR spectrometer analysis to polyurethane produced is marked with the peaks at 3400 – 3300 cm-1, 2270 – 1940 cm-1, 1700-1600 cm-1 and 1590 – 1540 cm-1 wavelengths which are the characteristic of urethane functional groups.","PeriodicalId":15309,"journal":{"name":"Journal of Chemical Natural Resources","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83499981","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