Jurnal Kimia Mulawarman最新文献_第7页

SCREENING PHYTOCHEMICAL AND ANTIBACTERIAL PROPERTY OF ETHANOLIC (Stenochlaena palustris) EXTRACT AGAINST Staphylococcus aureus , Escherichia coli, dan Bacillus subtilis 乙醇提取物对金黄色葡萄球菌、大肠杆菌和枯草芽孢杆菌的植物化学及抗菌性能的筛选

Jurnal Kimia Mulawarman Pub Date : 2018-07-24 DOI: 10.30872/jkm.v15i2.610

O. Roanisca

引用次数: 1

Antioxidant and Antimalarial Activities of Phenolic Compounds from Leaves of Macaranga beccariana Merr. 黄龙叶酚类化合物抗氧化及抗疟活性研究。

Jurnal Kimia Mulawarman Pub Date : 2018-05-30 DOI: 10.30872/JKM.V15I2.611

E. Marliana, C. Saleh, M. Hendra

{"title":"Antioxidant and Antimalarial Activities of Phenolic Compounds from Leaves of Macaranga beccariana Merr.","authors":"E. Marliana, C. Saleh, M. Hendra","doi":"10.30872/JKM.V15I2.611","DOIUrl":"https://doi.org/10.30872/JKM.V15I2.611","url":null,"abstract":"Macaranga beccariana Merr. is an endemic plant of Kalimantan which is no report yet about its biological activity and isolated compounds. Therefore, in order to know the potency of M. beccariana, determination of antioxidant and antimalarial activities along with isolation of bioactive compounds from this plant must be carried out. In this research, the leaves of M. beccariana was extracted using methanol to obtain methanol extract. Furthermore, the extract was separated and purified to obtain compound 1 and compound 2. Based on structure elucidation using spectrometer analysis including UV, 1H and 13C NMR, compounds 1 and 2 which belong to phenolics were identified as 4-hidroxybenzoic acid and 3,4-dihidroxybenzoic acid, respectively. Moreover, antioxidant activity using DPPH (2,2-diphenyl-1-picrylhydrazyl) and antimalarial activity towards Plasmodium falciparum strain 3D7 using Giemsa staining were performed. Rutine and chloroquine difosfat were used as positive controls for antioxidant and antimalarial, respectively. The results showed that the methanol extract of M. beccariana and its isolated compounds (1 and 2) are active for those activities. It can be concluded that the leaves of M. beccariana has good potency as antioxidant and antimalarial agents.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48902977","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

PENGARUH LAJU ALIR DALAM PROSES PENGEMASAN KOLOM KROMATOGRAFI PENUKAR ION 警告好吧，在COLOM排放过程中好吧

Jurnal Kimia Mulawarman Pub Date : 2018-05-30 DOI: 10.30872/jkm.v15i2.588

Vino Soaduon Hamonangan Simanjuntak

引用次数: 0

Identifikasi Potensi Jeruk Purut Sebagai Demulsifier Untuk Memisahkan Air Dari Emulsi Minyak di Lapangan Minyak Riau 确定紫色耶路撒冷作为破乳剂在廖内海油田分离水的潜力

Jurnal Kimia Mulawarman Pub Date : 2018-05-30 DOI: 10.30872/jkm.v15i2.604

Tommy Erfando

{"title":"Identifikasi Potensi Jeruk Purut Sebagai Demulsifier Untuk Memisahkan Air Dari Emulsi Minyak di Lapangan Minyak Riau","authors":"Tommy Erfando","doi":"10.30872/jkm.v15i2.604","DOIUrl":"https://doi.org/10.30872/jkm.v15i2.604","url":null,"abstract":"Emulsion stability is an indicator that needs to be controlled to prevent the degradation of petroleum quality. Emulsion breakdown is one of the mechanisms to separate the water phase from oil. It is transformed into a chemical compound that is expected to function as emulsion blocking or commonly known as a demulsifier. An organic demulsifier is one of the right ideas in preventing environmental pollution without diminishing its main function as an emulsion breaker. The bottle test method is one of the most commonly used methods in demulsification tests. Testing using this method is done by inserting the prepared emulsion into the bottle, then it will be placed into a waterbath under certain temperature conditions for several hours. This test will be done by looking at the demulsification that occurs every 30 minutes. From the testing of temperature, concentration, and effectiveness of the formulated formula, an optimal condition is obtained based on the highest demulsification efficiency. Based on the research, optimal condition of organic demulsifier formula is (3ml, 80˚C) with 7 ml demulsification efficiency. The results obtained from organic material formulations have not been able to increase the effectiveness of emulsion-breaking processes compared to commercial demulsifiers and basecase conditions (20 ml).","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46394325","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

SINTESIS SURFAKTAN TURUNAN AMIDA YANG DIPEROLEH DARI REKASI METIL RISINOLEAT DAN ETILENDIAMINA

Jurnal Kimia Mulawarman Pub Date : 2018-05-30 DOI: 10.30872/JKM.V15I2.609

Daniel Tarigan, Magdaleni Rahayu Agustina, Soerja Kosenarpadi

引用次数: 1

Antioksidan KUMARIN TERISOPRENILASI DAN ALKALOID INDOL DARI KULIT BATANG Zanthoxylum ovalifolium TUTCHER 卵叶Zanthoxylm TUTCHER对玉米素抗氧化剂和吲哚生物碱的杀菌作用

Jurnal Kimia Mulawarman Pub Date : 2018-05-30 DOI: 10.30872/JKM.V15I2.587

M. Tanjung

引用次数: 1

SYNTHESIS OF CELLULOSE ACETATE FROM OIL PALM EMPTY FRUIT BUNCH AND ITS PROPERTIES AS POLYMER ELECTROLYTE MEMBRANES ON LITHIUM ION BATTERY 油棕空果束醋酸纤维素的合成及其作为锂离子电池聚合物电解质膜的性能

Jurnal Kimia Mulawarman Pub Date : 2018-05-30 DOI: 10.30872/JKM.V15I2.612

Nurhadini Nurhadini, I. Arcana

{"title":"SYNTHESIS OF CELLULOSE ACETATE FROM OIL PALM EMPTY FRUIT BUNCH AND ITS PROPERTIES AS POLYMER ELECTROLYTE MEMBRANES ON LITHIUM ION BATTERY","authors":"Nurhadini Nurhadini, I. Arcana","doi":"10.30872/JKM.V15I2.612","DOIUrl":"https://doi.org/10.30872/JKM.V15I2.612","url":null,"abstract":"Biodegradable polymer electrolyte utilization on lithium ion battery is increasingly considered to prevent any waste. This study was conducted to synthesis cellulose acetate from oil palm empty fruit bunch and its properties as polymer electrolyte membranes on lithium ion battery. This study was done by extracting cellulose from oil palm empty fruit bunch. That cellulose was acetylated become cellulose acetate and characterized its functional group. Further, polymer electrolyte was synthesized with composition 25/60/15(%b/b) (SAS/PEO/LiClO4). The properties of polymer electrolyte membranes were characterized by analysis thermal properties, ionic conductivity and mechanical properties. Based on functional group data, synthetic cellulose acetate had similar the main functional group with commercial cellulose acetate. Synthetic cellulose acetate contained 27% acetyl with 1,4 substitution degree. Analysis thermal properties showed that the decomposition of SAS/PEO/LiClO4 polymer electrolyte membranes was started above 260oC. The ionic conductivity 10,81 x 10-4 S/cm of these polymer electrolyte membranes was 10,81 x 10-4 S/cm. Analysis of mechanic properties were 0,05 MPa stress, 14,23 MPa elongation and 0,35 MPa Modulus Young. SAS/PEO/LiClO4 polymer electrolyte membranes had higher ionic conductivity than SAK/PEO/LiClO4 polymer electrolyte membranes. However, SAS/PEO/LiClO4 polymer electrolyte membranes had lower thermal and mechanic properties than SAK/PEO/LiClO4 polymer electrolyte membranes. \u0000 ","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42733134","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: 2

KORELASI KADAR ION LOGAM Pb TERHADAP KADAR PROTEIN PADA KERANG TAHU(Meretrix meretrix) YANGDIAMBIL DI PERAIRAN PANTAI BUNYU KALIMANTAN UTARA Pb-LOGAM离子与北美月配对中新发现的蛋白质（文蛤）之间的相关性

Jurnal Kimia Mulawarman Pub Date : 2017-12-29 DOI: 10.30872/jkm.v16i1.459

Edison Jaya, R. Kartika, Chairul Saleh

引用次数: 1