ABSTRAK Penelitian mengenai pembuatan edible film yang bersifat antibakteri dari glukomanan umbi Porang (Amorphophallus muelleri) yang diinkorporasi dengan ekstrak etanol umbi Bawang Tiwai (Eleutherine bulbosa (Mill.) Urb.) untuk mendapatkan formula edible film glukomanan umbi Porang dan ekstrak etanol umbi Bawang Tiwai yang memiliki aktivitas antibakteri terhadap bakteri Escherichia coli ATCC 25922 dan Staphylococcus aureus ATCC 25923 telah selesai dilakukan. Aktivitas antibakteri ekstrak etanol umbi Bawang Tiwai dilakukan dengan metode difusi agar dengan konsentrasi 2, 4, 6, dan 8% menunjukkan bahwa ekstrak etanol umbi Bawang Tiwai dengan konsentrasi 4% memiliki aktivitas antibakteri terhadap kedua bakteri masing-masing sebesar 13 mm dan 15,83 mm. Formula edible film yang mengandung glukomanan 6%, gliserol 25%, dan ekstrak etanol umbi Bawang Tiwai 4% menunjukkan aktivitas antibakteri terhadap bakteri Escherichia coli ATCC 25922 dan Staphylococcus aureus ATCC 25923 masing-masing sebesar 14,83 mm dan 16 mm.
{"title":"Pembuatan Edible Film Yang Bersifat Antibakteri Dari Glukomanan Umbi Porang (Amorphophallus Muelleri) Yang Diinkorporasi Dengan Ekstrak Etanol Umbi Bawang Tiwai (Eleutherine Bulbosa (Mill.) Urb.)","authors":"Anggun Ridha Avitri, Subur P. Pasaribu, W. Astuti","doi":"10.30872/jkm.v20i1.1073","DOIUrl":"https://doi.org/10.30872/jkm.v20i1.1073","url":null,"abstract":"ABSTRAK \u0000 \u0000Penelitian mengenai pembuatan edible film yang bersifat antibakteri dari glukomanan umbi Porang (Amorphophallus muelleri) yang diinkorporasi dengan ekstrak etanol umbi Bawang Tiwai (Eleutherine bulbosa (Mill.) Urb.) untuk mendapatkan formula edible film glukomanan umbi Porang dan ekstrak etanol umbi Bawang Tiwai yang memiliki aktivitas antibakteri terhadap bakteri Escherichia coli ATCC 25922 dan Staphylococcus aureus ATCC 25923 telah selesai dilakukan. Aktivitas antibakteri ekstrak etanol umbi Bawang Tiwai dilakukan dengan metode difusi agar dengan konsentrasi 2, 4, 6, dan 8% menunjukkan bahwa ekstrak etanol umbi Bawang Tiwai dengan konsentrasi 4% memiliki aktivitas antibakteri terhadap kedua bakteri masing-masing sebesar 13 mm dan 15,83 mm. Formula edible film yang mengandung glukomanan 6%, gliserol 25%, dan ekstrak etanol umbi Bawang Tiwai 4% menunjukkan aktivitas antibakteri terhadap bakteri Escherichia coli ATCC 25922 dan Staphylococcus aureus ATCC 25923 masing-masing sebesar 14,83 mm dan 16 mm.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43959031","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}
Maria K.P. Barek Sabon, G. D. Tukan, Christiani Dewi Q. M. Bulin, M. Taek
Penelitian ini dilakukan dengan tujuan untuk mengetahui tumbuh-tumbuhan yang digunakan dalam pembuatan minyak obat tradisional masyarakat Sandosi di pulau Adonara dan masyarakat Lamatuka di pulau Lembata serta kandungan senyawa dalam minyak obat tradisional yang digunakan dan manfaat senyawa-senyawa yang terkandung. Metode penelitian yaitu wawancara untuk mengetahui jenis-jenis tumbuhan yang digunakan dalam pembuatan ramuan minyak obat, serta analisis senyawa dalam sampel ramuan minyak obat tradisional menggunakan GC-MS. Hasil penelitian yang diperoleh bahwa tumbuhan yang digunakan dalam pembuatan ramuan minyak obat tradisional masyarakat Sandosi yakni 3 jenis tumbuhan dan masyarakat Lamatuka 45 jenis tumbuhan. Senyawa dominan dari hasil analisis GC-MS ramuan minyak obat tradisional masyarakat Lamatuka antara lain: senyawa asam laurat, asam miristat, Dilauri, Tridecanal, asam oleat, oleamide, 1,3-dipalmitin, trilaurin, trioctanoin dan corwin. Sedangkan senyawa dominan pada ramuan minyak obat tradisional masyarakat Sandosi Adonara antara lain: senyawa asam laurat, asam palmitat, asam oleat, delta decalactone, oxacyclododecan-2-one, 10-undecenyl chloride, 9-octadecenal, asam tridekanoat, ethyl trans-3-(2-oxo-5-methylcyclohexyl) propionate, delta dodecalactone, trioctanoin, 10-Undecenoic acid, methyl ester dan oleamide
{"title":"Profil Senyawa Metabolit Sekunder Dalam Minyak Obat Ramuan Tradisional Masyarakat Sandosi Adonara Dan Masyarakat Lamatuka Lembata","authors":"Maria K.P. Barek Sabon, G. D. Tukan, Christiani Dewi Q. M. Bulin, M. Taek","doi":"10.30872/jkm.v20i1.1134","DOIUrl":"https://doi.org/10.30872/jkm.v20i1.1134","url":null,"abstract":"Penelitian ini dilakukan dengan tujuan untuk mengetahui tumbuh-tumbuhan yang digunakan dalam pembuatan minyak obat tradisional masyarakat Sandosi di pulau Adonara dan masyarakat Lamatuka di pulau Lembata serta kandungan senyawa dalam minyak obat tradisional yang digunakan dan manfaat senyawa-senyawa yang terkandung. Metode penelitian yaitu wawancara untuk mengetahui jenis-jenis tumbuhan yang digunakan dalam pembuatan ramuan minyak obat, serta analisis senyawa dalam sampel ramuan minyak obat tradisional menggunakan GC-MS. Hasil penelitian yang diperoleh bahwa tumbuhan yang digunakan dalam pembuatan ramuan minyak obat tradisional masyarakat Sandosi yakni 3 jenis tumbuhan dan masyarakat Lamatuka 45 jenis tumbuhan. Senyawa dominan dari hasil analisis GC-MS ramuan minyak obat tradisional masyarakat Lamatuka antara lain: senyawa asam laurat, asam miristat, Dilauri, Tridecanal, asam oleat, oleamide, 1,3-dipalmitin, trilaurin, trioctanoin dan corwin. Sedangkan senyawa dominan pada ramuan minyak obat tradisional masyarakat Sandosi Adonara antara lain: senyawa asam laurat, asam palmitat, asam oleat, delta decalactone, oxacyclododecan-2-one, 10-undecenyl chloride, 9-octadecenal, asam tridekanoat, ethyl trans-3-(2-oxo-5-methylcyclohexyl) propionate, delta dodecalactone, trioctanoin, 10-Undecenoic acid, methyl ester dan oleamide","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49246648","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}
The research of silica gel manufacturing from cane pulp cinders (Saccharum Officinarum) and the application for Cu (II) ion adsorption has been done. The adsorption of Cu (II) ion done by some variaties, such as pH, concentration, and contact time. The result of the research shows the optimum of pH was 8, concentration optimum was 8 ppm, and contact time was 75 minutes. The perecentage of recovery was 90,28%, shows the effectivity of silica gel from cane pulp cinders can be applicated for adsorption Cu (II) ion.
{"title":"The Manufacturing Of Silica Gel From Cane Pulp Cinders (Saccharum Officinarum) And The Application For Adsorption Cu (Ii) Ion","authors":"Muhammad Rizky, A. Alimuddin, A. S. Panggabean","doi":"10.30872/jkm.v20i1.799","DOIUrl":"https://doi.org/10.30872/jkm.v20i1.799","url":null,"abstract":"The research of silica gel manufacturing from cane pulp cinders (Saccharum Officinarum) and the application for Cu (II) ion adsorption has been done. The adsorption of Cu (II) ion done by some variaties, such as pH, concentration, and contact time. The result of the research shows the optimum of pH was 8, concentration optimum was 8 ppm, and contact time was 75 minutes. The perecentage of recovery was 90,28%, shows the effectivity of silica gel from cane pulp cinders can be applicated for adsorption Cu (II) ion.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44329459","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}
Phytochemical and antibacterial activity assay of methanol extract from Suji leaves (Pleomele angustifolia) were carried out. The aims of this study are to determine secondary metabolites and antibacterial activity of the methanol extract against Streptococcus sobrinus KCCM 11898 and Streptococcus mutans ATCC 25175 by using agar well diffusion. The results showed that methanol extract of suji leaves contain phenolic, triterpenoid and steroid constituents. With 2%, the methanol extract displayed antibacterial activity against Streptococcus sobrinus and Streptococcus mutans with diameter inhibition zones of 19.0 and 10.3 mm, respectively.
{"title":"Analisis Fitokimia Dan Uji Aktivitas Antibakteri Ekstrak Metanol Daun Suji (Pleomle Angusitolia N.E Brown)","authors":"Lutfiana Devi Kurnia, Ritbey Ruga, Chairul Saleh","doi":"10.30872/jkm.v20i1.1106","DOIUrl":"https://doi.org/10.30872/jkm.v20i1.1106","url":null,"abstract":"Phytochemical and antibacterial activity assay of methanol extract from Suji leaves (Pleomele angustifolia) were carried out. The aims of this study are to determine secondary metabolites and antibacterial activity of the methanol extract against Streptococcus sobrinus KCCM 11898 and Streptococcus mutans ATCC 25175 by using agar well diffusion. The results showed that methanol extract of suji leaves contain phenolic, triterpenoid and steroid constituents. With 2%, the methanol extract displayed antibacterial activity against Streptococcus sobrinus and Streptococcus mutans with diameter inhibition zones of 19.0 and 10.3 mm, respectively.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48582540","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}
Nelson Gaspersz, E. Fransina, Anancy Reza Ngarbingan
Research has been carried out to test the inhibitory activity of α-amylase and glucoamylase enzymes in the ethanolic extract of kirinyuh (Chromolaena odorata L.) leaves. The use of kirinyuh leaf ethanol extract as a diabetes drug in vivo has been carried out, but its mechanism of action have never been researched before, so further research is needed on the specific mechanism of ethanolic extract of kirinyuh leaves in reducing blood sugar levels, especially through inhibition of α-amylase and glucoamylase enzymes in vitro. The purpose of this study was to test the antidiabetic activity of the ethanol extract of kirinyuh leaves in vitro using α-amylase and glucoamylase inhibition methods. This research uses DNS spectrophotometric method. The results showed that kirinyuh leaf ethanol extract proved to have inhibitory activity against α-amylase and glucoamylase enzymes with IC50 values of 3730.15 ± 28.91 ppm or 3730.15 ± 28.91 µg/mL and 2510.78. ± 383.37 ppm or 2510.78 ± 383.37 µg/mL. From the results, it can be concluded that the ethanolic extract of kirinyuh leaves has inhibitory activity against α-amylase and glucoamylase enzymes. Telah dilakukan penelitian uji aktivitas penghambatan enzim α-amilase dan glukoamilase ekstrak etanol daun kirinyuh (Chromolaena odorata L.). Penggunaan ekstrak etanol daun kirinyuh sebagai obat diabetes secara in vivo telah dilakukan,tetapi belum diketahui mekanisme kerjanya, sehingga perlu dilakukan penelitian lebih lanjut mengenai mekanisme spesifik ekstrak etanol daun kirinyuh pada penurunana kadar gula darah terutama melalui aktivitas penghambatan terhadap enzim α-amilase dan glukoamilase secara in-vitro. Tujuan penelitian ini untuk untuk menguji aktivitas antidiabetes ekstrak etanol daun kirinyuh secara in vitro menggunakan metode penghambatan enzim α-amilase dan glukoamilase. Penelitian ini menggunakan metode DNS secara spektrofotometri. Hasil penelitian menunjukkan ekstral etanol daun kirinyuh terbukti memiliki aktivitas penghambatan terhadap enzim α-amilase dan glukoamilase dengan nilai IC50 masing-masing, yaitu sebesar 3730,15 ± 28,91 ppm atau 3730,15 ± 28,91 μg/mL dan 2510,78 ± 383,37 ppm atau 2510,78 ± 383,37 μg/mL. Dari hasil dapat disimpulkan bahwa ekstrak etanol daun kirinyuh memiliki aktivitas penghambatan terhadap enzim α-amilase dan glukoamilase.
研究了飞蛾叶乙醇提取物对α-淀粉酶和葡萄糖淀粉酶的抑制活性。麒麟叶乙醇提取物作为糖尿病药物的体内应用研究已经开展，但其作用机制尚未见研究，因此需要进一步研究麒麟叶乙醇提取物降低血糖水平的具体机制，特别是通过体外抑制α-淀粉酶和葡萄糖淀粉酶的作用。采用α-淀粉酶抑制法和葡萄糖淀粉酶抑制法，对麒龙叶乙醇提取物的体外抗糖尿病活性进行了研究。本研究采用DNS分光光度法。结果表明，枸杞叶乙醇提取物对α-淀粉酶和葡萄糖淀粉酶具有抑制活性，IC50值分别为3730.15±28.91 ppm、3730.15±28.91µg/mL和2510.78。±383.37 ppm或2510.78±383.37µg/mL。结果表明，麒云叶乙醇提取物对α-淀粉酶和葡萄糖淀粉酶具有抑制作用。[关键词]乙醇酶;α-淀粉酶;葡萄糖淀粉酶;彭汉巴旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦旦。图鹃、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪、黄芪。Penelitian ini mongunakan方法的DNS secara光谱分析。Hasil penelitian menunjukkan ekstral etol daun kirinyuh terbukti memiliki aktivitas penghambatan terhadap酶α-淀粉酶和葡萄糖淀粉酶dengan nilai IC50 mas- masup, yitu sebesar 3730,15±28,91 ppm atau 3730,15±28,91 μg/mL, 2510,78±383,37 ppm atau 2510,78±383,37 ppm atau 2510,78±383,37 μg/mL。dashail dapat dispaspaskan bahwa ekstrak etanol和kirinyuh memoriliki活性，penghambatan terhadap酶α-淀粉酶和葡萄糖淀粉酶。
{"title":"Uji Aktivitas Penghambatan Enzim α-Amilase dan Glukoamilase dari Ekstrak Etanol Daun Kirinyuh (Chromolaena odorata L.)","authors":"Nelson Gaspersz, E. Fransina, Anancy Reza Ngarbingan","doi":"10.30872/jkm.v19i2.1120","DOIUrl":"https://doi.org/10.30872/jkm.v19i2.1120","url":null,"abstract":"Research has been carried out to test the inhibitory activity of α-amylase and glucoamylase enzymes in the ethanolic extract of kirinyuh (Chromolaena odorata L.) leaves. The use of kirinyuh leaf ethanol extract as a diabetes drug in vivo has been carried out, but its mechanism of action have never been researched before, so further research is needed on the specific mechanism of ethanolic extract of kirinyuh leaves in reducing blood sugar levels, especially through inhibition of α-amylase and glucoamylase enzymes in vitro. The purpose of this study was to test the antidiabetic activity of the ethanol extract of kirinyuh leaves in vitro using α-amylase and glucoamylase inhibition methods. This research uses DNS spectrophotometric method. The results showed that kirinyuh leaf ethanol extract proved to have inhibitory activity against α-amylase and glucoamylase enzymes with IC50 values of 3730.15 ± 28.91 ppm or 3730.15 ± 28.91 µg/mL and 2510.78. ± 383.37 ppm or 2510.78 ± 383.37 µg/mL. From the results, it can be concluded that the ethanolic extract of kirinyuh leaves has inhibitory activity against α-amylase and glucoamylase enzymes. \u0000 \u0000Telah dilakukan penelitian uji aktivitas penghambatan enzim α-amilase dan glukoamilase ekstrak etanol daun kirinyuh (Chromolaena odorata L.). Penggunaan ekstrak etanol daun kirinyuh sebagai obat diabetes secara in vivo telah dilakukan,tetapi belum diketahui mekanisme kerjanya, sehingga perlu dilakukan penelitian lebih lanjut mengenai mekanisme spesifik ekstrak etanol daun kirinyuh pada penurunana kadar gula darah terutama melalui aktivitas penghambatan terhadap enzim α-amilase dan glukoamilase secara in-vitro. Tujuan penelitian ini untuk untuk menguji aktivitas antidiabetes ekstrak etanol daun kirinyuh secara in vitro menggunakan metode penghambatan enzim α-amilase dan glukoamilase. Penelitian ini menggunakan metode DNS secara spektrofotometri. Hasil penelitian menunjukkan ekstral etanol daun kirinyuh terbukti memiliki aktivitas penghambatan terhadap enzim α-amilase dan glukoamilase dengan nilai IC50 masing-masing, yaitu sebesar 3730,15 ± 28,91 ppm atau 3730,15 ± 28,91 μg/mL dan 2510,78 ± 383,37 ppm atau 2510,78 ± 383,37 μg/mL. Dari hasil dapat disimpulkan bahwa ekstrak etanol daun kirinyuh memiliki aktivitas penghambatan terhadap enzim α-amilase dan glukoamilase.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43665051","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}
Eugenol is the active molecule naturally found in clove oil. The calculations have been done for the eugenol and its derivatives computationally. This computational calculation aims to obtain a stable structure and electronic properties of eugenol, methyl eugenol, and acetyl eugenol. The computational calculation used DFT for geometry optimization in the gas phase using B3LYP functional and 6-31G(d) as the basis set. The optimized structure of eugenol and its derivatives is not planar. The presence of methoxy replacing hydroxy increases the bond length and decreases the bond angle and the dihedral. The electronic properties such as atomic charge and density of HOMO-LUMO show the difference between the three molecules.
{"title":"MOLECULAR STRUCTURE AND ELECTRONIC PROPERTIES OF EUGENOL AND ITS ANALOGUES USING DFT","authors":"M. Maahury","doi":"10.30872/jkm.v19i2.1123","DOIUrl":"https://doi.org/10.30872/jkm.v19i2.1123","url":null,"abstract":"Eugenol is the active molecule naturally found in clove oil. The calculations have been done for the eugenol and its derivatives computationally. This computational calculation aims to obtain a stable structure and electronic properties of eugenol, methyl eugenol, and acetyl eugenol. The computational calculation used DFT for geometry optimization in the gas phase using B3LYP functional and 6-31G(d) as the basis set. The optimized structure of eugenol and its derivatives is not planar. The presence of methoxy replacing hydroxy increases the bond length and decreases the bond angle and the dihedral. The electronic properties such as atomic charge and density of HOMO-LUMO show the difference between the three molecules.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47382639","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}
The study about the comparison of analytical performance of the determination of Pb metal ions using Atomic Absorption Spectrophotometer in various laboratories in samarinda has been conducted. The validated methods are linearity, detection limits, quantity and precision limits. The results showed, a standardized regression test obtained by laboratory A, a value of R2 ≥ 0.4103, laboratory B a value of R2 ≥ 0.983 and laboratory C, a value of R2 ≥ 0.000. The detection limit found at laboratory A was 0.6728 µg/L, laboratory B was 0.1989 µg/L and laboratory C was 0.0001 µg/L. The quantization limit obtained by laboratory A was 0.6817 µg/L, laboratory B was 0.6063 µg/L and laboratory C was 0.0001 µg/L. The precision test of laboratory A was 7.2208, laboratory B was 5.4557 and laboratory C was 0,000. The result of determining Pb of gas station soil samples in laboratory A is 0.737 µg/L and laboratory B is 0.391 µg/L, so that means they have exceeded the quality standards set by the Indonesian National Standard (INS).
{"title":"COMPARISON OF ANALYTIC PERFORMANCE OF RESULTS OF DETERMINATION OF Pb METAL IONS USING ATOMIC ABSORPTION SPECTROPHOTOMETER of VARIOUS in SAMARINDA LABORATORIES","authors":"Arifin Syam Surya, Bohari Yusuf, A. S. Panggabean","doi":"10.30872/jkm.v19i1.909","DOIUrl":"https://doi.org/10.30872/jkm.v19i1.909","url":null,"abstract":"The study about the comparison of analytical performance of the determination of Pb metal ions using Atomic Absorption Spectrophotometer in various laboratories in samarinda has been conducted. The validated methods are linearity, detection limits, quantity and precision limits. The results showed, a standardized regression test obtained by laboratory A, a value of R2 ≥ 0.4103, laboratory B a value of R2 ≥ 0.983 and laboratory C, a value of R2 ≥ 0.000. The detection limit found at laboratory A was 0.6728 µg/L, laboratory B was 0.1989 µg/L and laboratory C was 0.0001 µg/L. The quantization limit obtained by laboratory A was 0.6817 µg/L, laboratory B was 0.6063 µg/L and laboratory C was 0.0001 µg/L. The precision test of laboratory A was 7.2208, laboratory B was 5.4557 and laboratory C was 0,000. The result of determining Pb of gas station soil samples in laboratory A is 0.737 µg/L and laboratory B is 0.391 µg/L, so that means they have exceeded the quality standards set by the Indonesian National Standard (INS).","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42015663","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}
M. S. Siregar, Enisa Cita Mentari, Desi Ardilla, Masura M D, Asma Nasution, Eddiyanto Eddiyanto
Pada penelitian ini dilaporkan perubahan suhu transisi gelas produk pencangkokan anhidrida maleat pada karet alam siklis. Pencangkokan anhidrida maleat pada karet alam siklis dilakukan dalam fase leleh dengan penambahan komonomer divinil benzen di dalam pencampur internal suhu 185oC dan kecepatan rotor 85 rpm. Konsentrasi anhidrida maleat yang digunakan dalam proses pencangkokan adalah 16 phr, tanpa penambahan dan dengan penambahan komonomer divinil benzen dengan variasi: 0,5, 1 dan 2 mol rasio. Produk pencangkokan dikarakterisasi dengan Differential Scanning Calorimetry untuk mempelajari perubahan suhu transisi gelasnya. Berdasarkan analisis dan pengolahan data menggunakan software thermal analysis diperoleh bahwa semakin banyak penambahan komonomer divinil benzene maka suhu transisi gelasnya semakin tinggi, yaitu: 69,46oC, 69,51oC, 70,08oC dan 70,56oC.
{"title":"STUDI SUHU TRANSISI GELAS PRODUK PENCANGKOKAN ANHIDRIDA MALEAT PADA KARET ALAM SIKLIS: METODE DIFFERENTIAL SCANNING CALORIMETRY","authors":"M. S. Siregar, Enisa Cita Mentari, Desi Ardilla, Masura M D, Asma Nasution, Eddiyanto Eddiyanto","doi":"10.30872/jkm.v19i1.1076","DOIUrl":"https://doi.org/10.30872/jkm.v19i1.1076","url":null,"abstract":"Pada penelitian ini dilaporkan perubahan suhu transisi gelas produk pencangkokan anhidrida maleat pada karet alam siklis. Pencangkokan anhidrida maleat pada karet alam siklis dilakukan dalam fase leleh dengan penambahan komonomer divinil benzen di dalam pencampur internal suhu 185oC dan kecepatan rotor 85 rpm. Konsentrasi anhidrida maleat yang digunakan dalam proses pencangkokan adalah 16 phr, tanpa penambahan dan dengan penambahan komonomer divinil benzen dengan variasi: 0,5, 1 dan 2 mol rasio. Produk pencangkokan dikarakterisasi dengan Differential Scanning Calorimetry untuk mempelajari perubahan suhu transisi gelasnya. Berdasarkan analisis dan pengolahan data menggunakan software thermal analysis diperoleh bahwa semakin banyak penambahan komonomer divinil benzene maka suhu transisi gelasnya semakin tinggi, yaitu: 69,46oC, 69,51oC, 70,08oC dan 70,56oC.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49316408","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}
The regulation of Indonesian Health Ministry number 007 of 2012 about traditional medicines registration explained that traditional medicines are prohibited from containing Drug Chemicals (DC). The aim of the study was to identify the DC of dexamethasone in Agency Fattening Herbs sold in Shopee e-marketplace. Dexamethasone is a corticosteroid drug used as an anti-inflammatory agent. Long-term use can cause a hormonal effect, iatrogenic chusing syndrome. This study was a qualitative descriptive using thin layer chromatography (TLC). The mobile phase used to identify dexamethasone in this study was Ethyl acetate: Toluen: Methanol (45 : 54: 1) and the solvent used was Chloroform: Methanol (9 : 1). Many of the samples tested were 3, namely X, Y and Z. The results of TLC formed purple stain spots on all three samples that were parallel to the comparison on 254 nm UV light. The price of dexamethasone comparison Rf is 0.53. The Rf value of the sample X was 0.34. The Rf value of sample Z is 0.53. The calculation results of Rf value were analyzed by SPSS with a significant value (p ≤ 0.001). The analysis was continued by the Duncan test to show groups that had differences. Of the three samples Agency Fattening Herbs tested two of them (X and Z) containing Dexamethasone whereas one (Y) does not has Dexamethasone. Keywords: Agency fattening herbs, dexamethasone, e-marketplace, thin layer chromatography
{"title":"IDENTIFIKASI DEKSAMETASON PADA JAMU PENGGEMUK BADAN YANG DIJUAL DI E-MARKETPLACE SHOPEE MENGGUNAKAN KROMATOGRAFI LAPIS TIPIS","authors":"Sri Widia Ningsih","doi":"10.30872/jkm.v19i1.1069","DOIUrl":"https://doi.org/10.30872/jkm.v19i1.1069","url":null,"abstract":"The regulation of Indonesian Health Ministry number 007 of 2012 about traditional medicines registration explained that traditional medicines are prohibited from containing Drug Chemicals (DC). The aim of the study was to identify the DC of dexamethasone in Agency Fattening Herbs sold in Shopee e-marketplace. Dexamethasone is a corticosteroid drug used as an anti-inflammatory agent. Long-term use can cause a hormonal effect, iatrogenic chusing syndrome. This study was a qualitative descriptive using thin layer chromatography (TLC). The mobile phase used to identify dexamethasone in this study was Ethyl acetate: Toluen: Methanol (45 : 54: 1) and the solvent used was Chloroform: Methanol (9 : 1). Many of the samples tested were 3, namely X, Y and Z. The results of TLC formed purple stain spots on all three samples that were parallel to the comparison on 254 nm UV light. The price of dexamethasone comparison Rf is 0.53. The Rf value of the sample X was 0.34. The Rf value of sample Z is 0.53. The calculation results of Rf value were analyzed by SPSS with a significant value (p ≤ 0.001). The analysis was continued by the Duncan test to show groups that had differences. Of the three samples Agency Fattening Herbs tested two of them (X and Z) containing Dexamethasone whereas one (Y) does not has Dexamethasone. \u0000 \u0000Keywords: Agency fattening herbs, dexamethasone, e-marketplace, thin layer chromatography","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47125881","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}
"Phytochemical screening of Three Batak Leeks (A. chinense G. Don) Varians " has been carried out. For phytochemical screening, secondary metabolites were analyzed, including alkaloids, phenolics, flavonoids, terpenoids, steroids and saponins. From the three samples of Batak Leeks (fresh, dried and methanol extract), the result was concluded that secondary metabolites of the terpenoids were weak in the methanol extract and not detected in the fresh and dried Batak leeks .
进行了“三种Batak韭菜(A. chinense G. Don) Varians的植物化学筛选”。在植物化学筛选方面，分析了次生代谢产物，包括生物碱、酚类、黄酮类、萜类、类固醇和皂苷。从鲜韭菜、干韭菜和甲醇提取物三种样品中，发现甲醇提取物中萜类化合物的次生代谢产物较弱，鲜韭菜和干韭菜中均未检测到萜类化合物的次生代谢产物。
{"title":"PHYTOCHEMICAL SCREENING OF THREE BATAK LEEKS VARIANS (A. chinense G. Don)","authors":"A. Fahmi","doi":"10.30872/jkm.v19i1.1002","DOIUrl":"https://doi.org/10.30872/jkm.v19i1.1002","url":null,"abstract":"\"Phytochemical screening of Three Batak Leeks (A. chinense G. Don) Varians \" has been carried out. For phytochemical screening, secondary metabolites were analyzed, including alkaloids, phenolics, flavonoids, terpenoids, steroids and saponins. From the three samples of Batak Leeks (fresh, dried and methanol extract), the result was concluded that secondary metabolites of the terpenoids were weak in the methanol extract and not detected in the fresh and dried Batak leeks .","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46693841","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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