Stenochlaena palustris dikenal dengan nama lokal pucuk iding-iding bagi masyarakat Bangka Belitung. Pemanfaatan Stenochlaena palustris sebagai obat tradisional untuk mengobati bisul, penyakit kulit, dan penambah darah. Pada penelitian ini telah dikaji kandungan metabolit sekunder dan potensi antibakteri pada Stenochlaena palustris. Serbuk kering Stenochlaena palustris dimaserasi menggunakan etanol, dan aktivitas antibakteri ditentukan menggunakan metode difusi cakram terhadap bakteri Staphylococcus aureus , Escherichia coli, dan Bacillus subtilis. Berdasarkan hasil skrining fitokimia ditemukan flavonoid, alkaloid, saponin, dan fenol hidrokuinon pada ekstrak etanol Stenochlaena palustris. Hasil pengujian antibakteri didapatkan daya hambat ekstrak etanol Stenochlaena palustris tergolong sedang dalam menghambat pertumbuhan bakteri E. coli dan B. Subtilis pada konsentrasi 50 mg/mL dengan diameter zona bening masing-masing 5,28 mm dan 6,00 mm. Daya hambat terhadap pertumbuhan S. aureus pada konsentrasi 50 mg/mL dengan diameter zona bening sebesar 4,38 mg/mL tergolong lemah.
{"title":"SCREENING PHYTOCHEMICAL AND ANTIBACTERIAL PROPERTY OF ETHANOLIC (Stenochlaena palustris) EXTRACT AGAINST Staphylococcus aureus , Escherichia coli, dan Bacillus subtilis","authors":"O. Roanisca","doi":"10.30872/jkm.v15i2.610","DOIUrl":"https://doi.org/10.30872/jkm.v15i2.610","url":null,"abstract":"Stenochlaena palustris dikenal dengan nama lokal pucuk iding-iding bagi masyarakat Bangka Belitung. Pemanfaatan Stenochlaena palustris sebagai obat tradisional untuk mengobati bisul, penyakit kulit, dan penambah darah. Pada penelitian ini telah dikaji kandungan metabolit sekunder dan potensi antibakteri pada Stenochlaena palustris. Serbuk kering Stenochlaena palustris dimaserasi menggunakan etanol, dan aktivitas antibakteri ditentukan menggunakan metode difusi cakram terhadap bakteri Staphylococcus aureus , Escherichia coli, dan Bacillus subtilis. Berdasarkan hasil skrining fitokimia ditemukan flavonoid, alkaloid, saponin, dan fenol hidrokuinon pada ekstrak etanol Stenochlaena palustris. Hasil pengujian antibakteri didapatkan daya hambat ekstrak etanol Stenochlaena palustris tergolong sedang dalam menghambat pertumbuhan bakteri E. coli dan B. Subtilis pada konsentrasi 50 mg/mL dengan diameter zona bening masing-masing 5,28 mm dan 6,00 mm. Daya hambat terhadap pertumbuhan S. aureus pada konsentrasi 50 mg/mL dengan diameter zona bening sebesar 4,38 mg/mL tergolong lemah.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48728573","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}
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.
{"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}
Resin DEAE Separose Fast Flow adalah salah satu resin yang digunakan dalam kromatografi penukar ion. Dalam aplikasi resin diinstruksikan penggunaan konstan laju alir dalam proses packing kolom sangat terbatas yaitu dengan ketentuan bed height (tinggi resin dalam kolom) 15 cm. Di sisi lain, pengguna resin tidak selalu menggunakan jumlah resin yang sama banyak dan jenis kolom yang berbeda. Sehingga, proses kemas pada kolom gelas kaca (SAC 100/500 mm) maka, diperlukan studi lebih lanjut untuk menentukan tinggi kolom. Penelitian ini menggunakan laju alir yang direkomendasikan dari pemasok dan juga menggunakan laju alir yang berada di bawah rekomendasi pemasok, karena semakin tinggi laju alir membuat hasil kemas pada kolom tidak efisien. Hasil penelitian menunjukkan bahwa laju alir yang baik adalah 150 mL/menit yang memberikan nilai asimetri 1,8 dan nilai HETP (angka lempeng teoritis) yang memenuhi criteria dibanding dengan menggunakan laju alir yang lainnya.
{"title":"PENGARUH LAJU ALIR DALAM PROSES PENGEMASAN KOLOM KROMATOGRAFI PENUKAR ION","authors":"Vino Soaduon Hamonangan Simanjuntak","doi":"10.30872/jkm.v15i2.588","DOIUrl":"https://doi.org/10.30872/jkm.v15i2.588","url":null,"abstract":"Resin DEAE Separose Fast Flow adalah salah satu resin yang digunakan dalam kromatografi penukar ion. Dalam aplikasi resin diinstruksikan penggunaan konstan laju alir dalam proses packing kolom sangat terbatas yaitu dengan ketentuan bed height (tinggi resin dalam kolom) 15 cm. Di sisi lain, pengguna resin tidak selalu menggunakan jumlah resin yang sama banyak dan jenis kolom yang berbeda. Sehingga, proses kemas pada kolom gelas kaca (SAC 100/500 mm) maka, diperlukan studi lebih lanjut untuk menentukan tinggi kolom. Penelitian ini menggunakan laju alir yang direkomendasikan dari pemasok dan juga menggunakan laju alir yang berada di bawah rekomendasi pemasok, karena semakin tinggi laju alir membuat hasil kemas pada kolom tidak efisien. Hasil penelitian menunjukkan bahwa laju alir yang baik adalah 150 mL/menit yang memberikan nilai asimetri 1,8 dan nilai HETP (angka lempeng teoritis) yang memenuhi criteria dibanding dengan menggunakan laju alir yang lainnya.","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":"48700134","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}
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).
{"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}
Daniel Tarigan, Magdaleni Rahayu Agustina, Soerja Kosenarpadi
Interesterification of castor oil with methanol using base catalyst gave mixture of fatty acid methyl esther (FAME) castor oil. Methyl risinoleate as major composition of methyl esther castor oil was subjected to column chromatography using petroleum ether:diethyl ether (19:1, v/v) as eluent, to give yield 73%. Amidation of methyl risinoleate with ethylendiamine under refluks condition using benzene as solvent for ± 12 hours and catalyst NaOCH3, gave 1,3–Dirisinoleil-Etilendiamida compound and 59% yield. The reactioned product 1,3–Dirisinoleil-Etilendiamida has been confirmed its structure using FT-IR spectroscopy, and Hidrofile Lipofile Balance (HLB) value was determined by titration method 12,56
{"title":"SINTESIS SURFAKTAN TURUNAN AMIDA YANG DIPEROLEH DARI REKASI METIL RISINOLEAT DAN ETILENDIAMINA","authors":"Daniel Tarigan, Magdaleni Rahayu Agustina, Soerja Kosenarpadi","doi":"10.30872/JKM.V15I2.609","DOIUrl":"https://doi.org/10.30872/JKM.V15I2.609","url":null,"abstract":"Interesterification of castor oil with methanol using base catalyst gave mixture of fatty acid methyl esther (FAME) castor oil. Methyl risinoleate as major composition of methyl esther castor oil was subjected to column chromatography using petroleum ether:diethyl ether (19:1, v/v) as eluent, to give yield 73%. Amidation of methyl risinoleate with ethylendiamine under refluks condition using benzene as solvent for ± 12 hours and catalyst NaOCH3, gave 1,3–Dirisinoleil-Etilendiamida compound and 59% yield. The reactioned product 1,3–Dirisinoleil-Etilendiamida has been confirmed its structure using FT-IR spectroscopy, and Hidrofile Lipofile Balance (HLB) value was determined by titration method 12,56","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":"43918241","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}
Two isoprenylated coumarins, imperatorin (1), isopimpinelin (2) and one indol alkaloid compound, canthine-6-one (3) were isolated from the stem bark of Zanthoxylum ovalifolium Tutcher. Their structures were determined based on spectroscopic data such as UV, IR, MS and NMR. Imperatorin (1) showed high activity toward DPPH radical and isopimpinelin (2) and chantine-6-one (3) has moderate activity.
{"title":"Antioksidan KUMARIN TERISOPRENILASI DAN ALKALOID INDOL DARI KULIT BATANG Zanthoxylum ovalifolium TUTCHER","authors":"M. Tanjung","doi":"10.30872/JKM.V15I2.587","DOIUrl":"https://doi.org/10.30872/JKM.V15I2.587","url":null,"abstract":"Two isoprenylated coumarins, imperatorin (1), isopimpinelin (2) and one indol alkaloid compound, canthine-6-one (3) were isolated from the stem bark of Zanthoxylum ovalifolium Tutcher. Their structures were determined based on spectroscopic data such as UV, IR, MS and NMR. Imperatorin (1) showed high activity toward DPPH radical and isopimpinelin (2) and chantine-6-one (3) has moderate activity.","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":"48314965","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}
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.
生物可降解聚合物电解质在锂离子电池中的应用越来越受到重视，以防止任何浪费。以油棕空果束为原料合成醋酸纤维素，并对其作为锂离子电池聚合物电解质膜的性能进行了研究。本研究以油棕空果串为原料，提取纤维素。纤维素被乙酰化成醋酸纤维素，并对其官能团进行了表征。在此基础上，合成了25/60/15(%b/b) (SAS/PEO/LiClO4)的聚合物电解质。通过热性能、离子电导率和力学性能对聚合物电解质膜的性能进行了表征。基于官能团数据，合成醋酸纤维素的主要官能团与商品醋酸纤维素相似。合成醋酸纤维素含有27%的乙酰基，取代度为1,4。热性能分析表明，SAS/PEO/LiClO4聚合物电解质膜在260℃以上开始分解。聚合物电解质膜的离子电导率为10,81 x 10-4 S/cm，为10,81 x 10-4 S/cm。力学性能分析为:0、05 MPa应力，14、23 MPa伸长率和0、35 MPa杨氏模量。SAS/PEO/LiClO4聚合物电解质膜的离子电导率高于SAK/PEO/LiClO4聚合物电解质膜。然而，SAS/PEO/LiClO4聚合物电解质膜的热性能和力学性能低于SAK/PEO/LiClO4聚合物电解质膜。
{"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}
{"title":"KORELASI KADAR ION LOGAM Pb TERHADAP KADAR PROTEIN PADA KERANG TAHU(Meretrix meretrix) YANGDIAMBIL DI PERAIRAN PANTAI BUNYU KALIMANTAN UTARA","authors":"Edison Jaya, R. Kartika, Chairul Saleh","doi":"10.30872/jkm.v16i1.459","DOIUrl":"https://doi.org/10.30872/jkm.v16i1.459","url":null,"abstract":"","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2017-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44915161","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}
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