Ca-alginate for the adsorption of Fe and Mn in peat water has been carried out using a batch method. Brownish water color, low pH, and high content of Fe and Mn metals are obstacles in direct utilization of peat water. Peat water treatment can be done by the adsorption method. The stages of this study began with the preparation of the adsorbent by dripping Na-alginate solution into a variety of CaCl2 solution concentrations. Furthermore, the adsorption of peat water was carried out by batch method with variations in the contact time and mass of the adsorbent to get the adsorbent with the highest % removal. The optimal contact time for Fe and Mn adsorption on peat water is 6 hours. The optimal % removal value for the influence of Fe adsorption contact time for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 20.38% and 21.19%, respectively. The optimal % removal value for the influence of Mn adsorption contact time for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 30.98% and 41.37%, respectively. The optimal mass of adsorbent for Fe and Mn adsorption in peat water is 0.75 g. The optimal % removal value for the influence of Fe adsorption mass adsorption for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 79.28% and 21.67%, respectively. The optimal % removal value for the mass effect of Mn adsorption adsorption for Ca-alginate variation of 0.1 M and 0.2 M CaCl2 solution respectively at 24.44% and 26.13%.
采用间歇法对泥炭水中的铁、锰进行了海藻酸钙吸附。泥炭水呈褐色，pH值低，铁、锰金属含量高，是直接利用泥炭水的障碍。泥炭水处理可采用吸附法进行。本研究的阶段从将海藻酸钠溶液滴入不同浓度的CaCl2溶液中制备吸附剂开始。在此基础上，通过改变吸附剂的接触时间和质量，采用间歇式吸附法对泥炭水进行了吸附，得到了去除率最高的吸附剂。泥炭水吸附铁、锰的最佳接触时间为6小时。0.1 M和0.2 M CaCl2溶液对Fe吸附接触时间影响的最佳去除率分别为20.38%和21.19%。0.1 M和0.2 M CaCl2溶液对Mn吸附接触时间影响的最佳去除率分别为30.98%和41.37%。泥炭水中吸附铁、锰的最佳吸附剂质量为0.75 g。0.1 M和0.2 M CaCl2溶液中Fe吸附质量对海藻酸盐变化影响的最佳去除率分别为79.28%和21.67%。0.1 M和0.2 M CaCl2溶液对Mn吸附质量效应的最佳去除率分别为24.44%和26.13%。
{"title":"Ca-ALGINAT UNTUK ADSORPSI Fe DAN Mn PADA AIR GAMBUT","authors":"Elliska Murni Harfinda","doi":"10.30872/JKM.V18I1.844","DOIUrl":"https://doi.org/10.30872/JKM.V18I1.844","url":null,"abstract":"Ca-alginate for the adsorption of Fe and Mn in peat water has been carried out using a batch method. Brownish water color, low pH, and high content of Fe and Mn metals are obstacles in direct utilization of peat water. Peat water treatment can be done by the adsorption method. The stages of this study began with the preparation of the adsorbent by dripping Na-alginate solution into a variety of CaCl2 solution concentrations. Furthermore, the adsorption of peat water was carried out by batch method with variations in the contact time and mass of the adsorbent to get the adsorbent with the highest % removal. The optimal contact time for Fe and Mn adsorption on peat water is 6 hours. The optimal % removal value for the influence of Fe adsorption contact time for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 20.38% and 21.19%, respectively. The optimal % removal value for the influence of Mn adsorption contact time for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 30.98% and 41.37%, respectively. The optimal mass of adsorbent for Fe and Mn adsorption in peat water is 0.75 g. The optimal % removal value for the influence of Fe adsorption mass adsorption for Ca-alginate variations of 0.1 M and 0.2 M CaCl2 solution were 79.28% and 21.67%, respectively. The optimal % removal value for the mass effect of Mn adsorption adsorption for Ca-alginate variation of 0.1 M and 0.2 M CaCl2 solution respectively at 24.44% and 26.13%.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44712733","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}
Asam lemak hidroksamat (Fatty Hydroxamic Acids/FHA) telah berhasil di sintesis dari minyak mentah dedak padi. Adapun tujuan dari penelitian ini adalah sintesis asam lemak hidroksamat dari minyak mentah dedak padi secara enzimatis dan menentukan kondisi optimumnya, yang meliputi tiga tahap pengerjaan yaitu tahap preparasi minyak, tahap optimasi sintesis dan tahap karakterisasi. Pada tahap preparasi minyak diperoleh rendemen minyak mentah dedak padi sebanyak 23%. Pada tahap optimasi didapatkan kondisi optimum untuk sintesis asam lemak hidroksamat dari minyak mentah dedak padi adalah pada suhu 35oC selama 25 jam dengan perbandingan lipase (gram) : hidroksilamin (mmol) sama dengan 1 : 500 dan perbandingan enzim lipase (gram) : minyak mentah dedak padi (gram) sama dengan 1 : 75. Jumlah gugus asam hidroksamat dalam 1 gram sampel kering asam lemak hidroksamat adalah 2,98 mmol. Berdasarkan hasil analisis uji warna dengan Cu(II) dan Fe(III) didapatkan warna kompleks yang khas untuk kedua logam tersebut dengan asam lemak hidroksamat yaitu warna hijau dan merah tua. Sedangkan dari analisis FTIR, didapatkan spektrum gugus fungsi asam hidroksamat.
{"title":"Optimasi Sintesis Asam Lemak Hidroksamat Menggunakan Minyak Mentah Dedak Padi","authors":"Muhsinun Muhsinun, Fena Prayunisa","doi":"10.30872/JKM.V18I1.958","DOIUrl":"https://doi.org/10.30872/JKM.V18I1.958","url":null,"abstract":"Asam lemak hidroksamat (Fatty Hydroxamic Acids/FHA) telah berhasil di sintesis dari minyak mentah dedak padi. Adapun tujuan dari penelitian ini adalah sintesis asam lemak hidroksamat dari minyak mentah dedak padi secara enzimatis dan menentukan kondisi optimumnya, yang meliputi tiga tahap pengerjaan yaitu tahap preparasi minyak, tahap optimasi sintesis dan tahap karakterisasi. Pada tahap preparasi minyak diperoleh rendemen minyak mentah dedak padi sebanyak 23%. Pada tahap optimasi didapatkan kondisi optimum untuk sintesis asam lemak hidroksamat dari minyak mentah dedak padi adalah pada suhu 35oC selama 25 jam dengan perbandingan lipase (gram) : hidroksilamin (mmol) sama dengan 1 : 500 dan perbandingan enzim lipase (gram) : minyak mentah dedak padi (gram) sama dengan 1 : 75. Jumlah gugus asam hidroksamat dalam 1 gram sampel kering asam lemak hidroksamat adalah 2,98 mmol. Berdasarkan hasil analisis uji warna dengan Cu(II) dan Fe(III) didapatkan warna kompleks yang khas untuk kedua logam tersebut dengan asam lemak hidroksamat yaitu warna hijau dan merah tua. Sedangkan dari analisis FTIR, didapatkan spektrum gugus fungsi asam hidroksamat.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47874645","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}
Interaction study of active compounds of a medicinal plant with cervical cancer cells using the Docking Molecular (In Silico) method. In this research design the active compound sophoraflavanone B, 5,7,3 ', 4'-tetrahidroxy-3,6-diprenylflavone, apigenin and quercetin are first calculated using a quantum approach based on SCF method set 3-21G to obtain a stable compound form and has the lowest energy. Stable compounds interact with cervical cancer cells obtained from protein bank data (GDP) that have been prepared previously to obtain an inhibitory energy value, the number of hydrogen bonds and other factors that influence a Docking Molecular calculation. The interaction of compounds 5,7,3 ', 4'-tetrahydroxy-3,6-diprenylflavone against E6-HPV of 4 hydrogen bonds with a distance of 2.7-3.23 Å.
{"title":"STUDI POTENSI SENYAWA DERIVATIF FLAVONOID DARI TANAMAN GENUS MACARANGA TERHADAP PROTEIN E6 HPV DENGAN METODE DOCKING MOLECULAR","authors":"Veliyana Londong Allo, Djihan Ryn Pratiwi","doi":"10.30872/jkm.v16i2.1006","DOIUrl":"https://doi.org/10.30872/jkm.v16i2.1006","url":null,"abstract":"Interaction study of active compounds of a medicinal plant with cervical cancer cells using the Docking Molecular (In Silico) method. In this research design the active compound sophoraflavanone B, 5,7,3 ', 4'-tetrahidroxy-3,6-diprenylflavone, apigenin and quercetin are first calculated using a quantum approach based on SCF method set 3-21G to obtain a stable compound form and has the lowest energy. Stable compounds interact with cervical cancer cells obtained from protein bank data (GDP) that have been prepared previously to obtain an inhibitory energy value, the number of hydrogen bonds and other factors that influence a Docking Molecular calculation. The interaction of compounds 5,7,3 ', 4'-tetrahydroxy-3,6-diprenylflavone against E6-HPV of 4 hydrogen bonds with a distance of 2.7-3.23 Å.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42483190","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}
Synthesis methyl ester can be formed from kernel bintaro oil (Carberra Mangas L.) with two stages which is esterification and trans-esterification. The test result of methyl ester of bintaro kernel oil have iod value 92,82 g iod/100 gr oil, acid value 1,67 mg KOH/g oil with acid concentration 12,470% and saponification value 185.225 mg KOH/gr oil. From GC-MS analysis fatty acid dominant composition from methyl ester is methyl oleat with walue 45.86%. From HLB analysis show value 0,539. Result of analysis of FT-IR show methyl ester from bintaro kernel oil have typical absorbtion peak on wave number 17443.65 (C=O Ester).
以仁芋油为原料，经酯化反应和反式酯化反应两个阶段合成甲酯。实验结果表明，芋仁油甲酯的碘值为92、82 g /100 g，酸值为1、67 mg KOH/g，酸浓度为12470%，皂化值为185.225 mg KOH/g。气相色谱-质谱分析表明，甲酯中脂肪酸的主要成分为甲基油酸，值为45.86%。HLB分析显示值为0.539。FT-IR分析结果表明，香芋仁油中甲酯在波数17443.65处有典型的吸收峰(C=O ester)。
{"title":"PEMBUATAN SENYAWA METIL ESTER YANG DITURUNKAN DARI DARI MINYAK BIJI BINTARO (Cerbera manghas L.) SEBAGAI BAHAN BAKU DASAR PEMBUATAN SURFAKTAN","authors":"I. Burhanuddin, D. Daniel, E. Erwin","doi":"10.30872/JKM.V16I2.693","DOIUrl":"https://doi.org/10.30872/JKM.V16I2.693","url":null,"abstract":"Synthesis methyl ester can be formed from kernel bintaro oil (Carberra Mangas L.) with two stages which is esterification and trans-esterification. The test result of methyl ester of bintaro kernel oil have iod value 92,82 g iod/100 gr oil, acid value 1,67 mg KOH/g oil with acid concentration 12,470% and saponification value 185.225 mg KOH/gr oil. From GC-MS analysis fatty acid dominant composition from methyl ester is methyl oleat with walue 45.86%. From HLB analysis show value 0,539. Result of analysis of FT-IR show methyl ester from bintaro kernel oil have typical absorbtion peak on wave number 17443.65 (C=O Ester). \u0000 ","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42555280","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}
Isolation and identification of triterpenoid componds n-hexsane extract on 8 fraction of second stain from red leaf of Pucuk Merah (Syzygium myrtifolium Walp.) leaves has done. The leaves red Pucuk Merah has potential as bioactive ingredients of traditional medicinal plants in Indonesia. These leaves contain secondary metabolites Triterpenoid which has been tested phytochemical and bioactivity as antibacterial and antioxidant. Isolation was conducted by maceration method with ethanol, ethanol extract was partition with n-Hexane solvent. Then proceed with the separation by column chromatography isocratic. The results of the isolation process which isolates obtained second fractions 8 as white powder to 1.2 mg with Rf value of 0.625. Based on GC-MS analysis showed four major compounds contained in n-hexane fraction red Pucuk Merah leaves namely cis-6-ethyl-4a-cis, trans-8a-perhydro-trans-1-2-methoxycarbonylethyl)-trans-2,tr; phthalic acid, di (2-propylpentyl) ester; benzenesulfonanilide; and 14-β-H-Pregnan with a molecular weight of 339; 390 ; 233 and 288
{"title":"ISOLASI DAN IDENTIFIKASI SENYAWA TRITERPENOID DARI EKSTRAK n-HEKSAN FRAKSI 8 NODA KE- 2 DARI DAUN MERAH PUCUK MERAH (Syzygium Myrtifolium Walp.)","authors":"Septi Roro Liniawati, Chairul Saleh, E. Erwin","doi":"10.30872/JKM.V16I2.874","DOIUrl":"https://doi.org/10.30872/JKM.V16I2.874","url":null,"abstract":"Isolation and identification of triterpenoid componds n-hexsane extract on 8 fraction of second stain from red leaf of Pucuk Merah (Syzygium myrtifolium Walp.) leaves has done. The leaves red Pucuk Merah has potential as bioactive ingredients of traditional medicinal plants in Indonesia. These leaves contain secondary metabolites Triterpenoid which has been tested phytochemical and bioactivity as antibacterial and antioxidant. Isolation was conducted by maceration method with ethanol, ethanol extract was partition with n-Hexane solvent. Then proceed with the separation by column chromatography isocratic. The results of the isolation process which isolates obtained second fractions 8 as white powder to 1.2 mg with Rf value of 0.625. Based on GC-MS analysis showed four major compounds contained in n-hexane fraction red Pucuk Merah leaves namely cis-6-ethyl-4a-cis, trans-8a-perhydro-trans-1-2-methoxycarbonylethyl)-trans-2,tr; phthalic acid, di (2-propylpentyl) ester; benzenesulfonanilide; and 14-β-H-Pregnan with a molecular weight of 339; 390 ; 233 and 288","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48661155","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}
Analysis of iron ion (Fe2+) and lead ion (Pb2+) content in canned mackerel based long storage time has been investigated. The content of iron ion (Fe2+) and lead ion (Pb2+) has been analysed used the instrument Atomic Absorption Spectrophotometer (AAS). Based on long storage time result analysis of the content of iron ion (Fe2+) in canned mackerel the lowest is 2,71 mg/Kg with long storage time of 33 month and the highest is 5,21 mg/Kg with long storage time of 9 month while the result analysis of lead ion (Pb2+) in canned mackerel is not detected. Based on the result conclude is long storage time not affect the levels iron ion (Fe2+) and lead ion (Pb2+) in canned mackerel.
{"title":"ANALISIS KADAR ION BESI (Fe2+) DAN ION TIMBAL (Pb2+) DALAM IKAN MAKAREL KEMASAN KALENG BERDASARKAN LAMA WAKTU PENYIMPANAN","authors":"Dessy Karlina, A. Alimuddin, Chairul Saleh","doi":"10.30872/JKM.V16I2.450","DOIUrl":"https://doi.org/10.30872/JKM.V16I2.450","url":null,"abstract":"Analysis of iron ion (Fe2+) and lead ion (Pb2+) content in canned mackerel based long storage time has been investigated. The content of iron ion (Fe2+) and lead ion (Pb2+) has been analysed used the instrument Atomic Absorption Spectrophotometer (AAS). Based on long storage time result analysis of the content of iron ion (Fe2+) in canned mackerel the lowest is 2,71 mg/Kg with long storage time of 33 month and the highest is 5,21 mg/Kg with long storage time of 9 month while the result analysis of lead ion (Pb2+) in canned mackerel is not detected. Based on the result conclude is long storage time not affect the levels iron ion (Fe2+) and lead ion (Pb2+) in canned mackerel. \u0000 ","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41951687","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}
Synthesis of dietanolamide surfactant from methyl ester of sunflower seed oil (Helianthus annuus. L) has been carried out through an amidation reaction. The synthesis process includes extraction, esterification and amidation. In the extraction process showed the oil content of sunflower seeds was 32.93% with an acid number of 3.25 mg KOH/g and ALB levels of 1.63%. Sunflower seed oil was then converted to methyl ester through the esterification process and obtained an acid number 1.84 mg KOH/g so that the ALB level dropped to 0.92% and obtained saponification numbers of 61.19 mg KOH/g. The most dominant composition of methyl ester of sunflower seed oil based on GC-MS analysis was methyl oleate at 23.28%. The FT-IR methyl ester spectrum gives a specific absorption peak for group C=O ester at wave number 1743 cm-1. Methyl esters are converted to diethanolamide through an amidation process. The resulting diethanolamide has an acid number of 9.7 mg KOH/g and a saponification number of 3.08 mg KOH/g. The FT-IR spectrum provides specific absorption peaks for groups C=O amides at wave numbers 1622 cm-1 and C-N at wave numbers 1055 cm-1. The value of HLB dietanolamide in practice is 13.6495 and in theory is 14.291 which includes the surfactant in the oil in water (O/W) emulsifying class.
{"title":"SINTESIS SURFAKTAN DIETANOLAMIDA DARI METIL ESTER MINYAK BIJI BUNGA MATAHARI (Helianthus annuus. L) MELALUI REAKSI AMIDASI","authors":"Nur Khsanah, D. Daniel, E. Marliana","doi":"10.30872/JKM.V16I2.875","DOIUrl":"https://doi.org/10.30872/JKM.V16I2.875","url":null,"abstract":"Synthesis of dietanolamide surfactant from methyl ester of sunflower seed oil (Helianthus annuus. L) has been carried out through an amidation reaction. The synthesis process includes extraction, esterification and amidation. In the extraction process showed the oil content of sunflower seeds was 32.93% with an acid number of 3.25 mg KOH/g and ALB levels of 1.63%. Sunflower seed oil was then converted to methyl ester through the esterification process and obtained an acid number 1.84 mg KOH/g so that the ALB level dropped to 0.92% and obtained saponification numbers of 61.19 mg KOH/g. The most dominant composition of methyl ester of sunflower seed oil based on GC-MS analysis was methyl oleate at 23.28%. The FT-IR methyl ester spectrum gives a specific absorption peak for group C=O ester at wave number 1743 cm-1. Methyl esters are converted to diethanolamide through an amidation process. The resulting diethanolamide has an acid number of 9.7 mg KOH/g and a saponification number of 3.08 mg KOH/g. The FT-IR spectrum provides specific absorption peaks for groups C=O amides at wave numbers 1622 cm-1 and C-N at wave numbers 1055 cm-1. The value of HLB dietanolamide in practice is 13.6495 and in theory is 14.291 which includes the surfactant in the oil in water (O/W) emulsifying class.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44694957","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}
Nurdahniyati Nurdahniyati, N. Handayani, D. J. Subagyono, Eko Kusumawati
Antibacterial tests of Ag/SBA-15 from petung bamboo leaf ash against Escherichia coli were carried out. Modification of SBA-15 with Ag was conducted using the wet impregnation method while the antibacterial test was carried out by well diffusion method and disc diffusion method with various concentrations of Ag/SBA-15. The Ag/SBA-15 has a surface area of 143 m2/g, pore diameter of 8.4 nm and pore volume of 0.35 cm3/g. The SAXS pattern of Ag /SBA-15 showed 3 typical SBA-15 peaks in the 0o -2o 2θ range with the miller index [100], [110] and [200], indicating modification with Ag did not change the hexagonal structure of SBA-15. Ag / SBA-15 material has the potential as an antibacterial agent for Escherichia coli; the inhibitory zone diameters for the well diffusion method and disc diffusion method were 7.00 ± 0.57 mm and 13.16 ± 0.16 mm, respectively. Increasing the concentration of Ag/SBA-15 samples resulted in greater inhibitory zone diameters for the bacteria.
{"title":"UJI ANTIBAKTERI Ag/SBA-15 DARI ABU DAUN BAMBU PETUNG TERHADAP BAKTERI Escherichia coli","authors":"Nurdahniyati Nurdahniyati, N. Handayani, D. J. Subagyono, Eko Kusumawati","doi":"10.30872/JKM.V16I2.876","DOIUrl":"https://doi.org/10.30872/JKM.V16I2.876","url":null,"abstract":"Antibacterial tests of Ag/SBA-15 from petung bamboo leaf ash against Escherichia coli were carried out. Modification of SBA-15 with Ag was conducted using the wet impregnation method while the antibacterial test was carried out by well diffusion method and disc diffusion method with various concentrations of Ag/SBA-15. The Ag/SBA-15 has a surface area of 143 m2/g, pore diameter of 8.4 nm and pore volume of 0.35 cm3/g. The SAXS pattern of Ag /SBA-15 showed 3 typical SBA-15 peaks in the 0o -2o 2θ range with the miller index [100], [110] and [200], indicating modification with Ag did not change the hexagonal structure of SBA-15. Ag / SBA-15 material has the potential as an antibacterial agent for Escherichia coli; the inhibitory zone diameters for the well diffusion method and disc diffusion method were 7.00 ± 0.57 mm and 13.16 ± 0.16 mm, respectively. Increasing the concentration of Ag/SBA-15 samples resulted in greater inhibitory zone diameters for the bacteria.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43175184","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 about adsorption concentration of iron, manganese, pH, COD, BOD and TSS at well water using baggase as adsorbent material. The content of iron and manganese was determined using AAS; pH using pH meter; COD and BOD using titration method; TSS using gravimetry me. The results of research showed the best percentage of decrease was use of baggase activated with KOH, can be showed in the reduction of iron was 42.80%, manganese 94.93%, pH 8.45%, COD 24.75%, BOD 32.21%, TSS 2.88%, the percentage of recovery of iron 98.05% and manganese 88.31%.
{"title":"PEMANFAATAN AMPAS TEBU SEBAGAI MATERIAL ADSORBEN BESI, MANGAN, pH, COD, BOD DAN TSS PADA AIR SUMUR","authors":"R. Rina, A. Alimuddin, A. S. Panggabean","doi":"10.30872/JKM.V16I2.424","DOIUrl":"https://doi.org/10.30872/JKM.V16I2.424","url":null,"abstract":"The research about adsorption concentration of iron, manganese, pH, COD, BOD and TSS at well water using baggase as adsorbent material. The content of iron and manganese was determined using AAS; pH using pH meter; COD and BOD using titration method; TSS using gravimetry me. The results of research showed the best percentage of decrease was use of baggase activated with KOH, can be showed in the reduction of iron was 42.80%, manganese 94.93%, pH 8.45%, COD 24.75%, BOD 32.21%, TSS 2.88%, the percentage of recovery of iron 98.05% and manganese 88.31%.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43461914","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}
Coagulation-flocculation is one of the waste water treatments using coagulant/flocculants agent. Using coagulant/flocculants based on natural polymers were many used due to many available, renewable source, and environment friendly. One of that coagulant/flocculants was chitosan that can be produced through deacetylation of chitin. Amino groups in the chitosan structure play important role in the coagulant/flocculants process. The aim of research is using chitosan-based coagulants in the coagulation-flocculation of kaolin suspension. In here, there were two coagulants type, first, single coagulant which chitosan with different molecular weight added alone in kaolin suspension. Second, mix coagulants which chitosan aid with alum in kaolin suspension. As the result, functional group analysis showed that chitosan with different molecular weight have the same functional groups. Increasing molecular weight of chitosan increase NH2 groups and degree of deacetylation. The removing turbidity of kaolin suspension showed that increasing molecular weight chitosan increase removing turbidity of kaolin suspension. Using double coagulant (chitosan and tawas) have the removing turbidity greater than single coagulant.
{"title":"CHITOSAN-BASE COAGULANTS IN COAGULATION-FLOCCULATION OF KAOLIN SUSPENSION","authors":"B. Piluharto, Mufrihah Nurhayati, A. Asnawati","doi":"10.30872/JKM.V16I1.668","DOIUrl":"https://doi.org/10.30872/JKM.V16I1.668","url":null,"abstract":"Coagulation-flocculation is one of the waste water treatments using coagulant/flocculants agent. Using coagulant/flocculants based on natural polymers were many used due to many available, renewable source, and environment friendly. One of that coagulant/flocculants was chitosan that can be produced through deacetylation of chitin. Amino groups in the chitosan structure play important role in the coagulant/flocculants process. The aim of research is using chitosan-based coagulants in the coagulation-flocculation of kaolin suspension. In here, there were two coagulants type, first, single coagulant which chitosan with different molecular weight added alone in kaolin suspension. Second, mix coagulants which chitosan aid with alum in kaolin suspension. As the result, functional group analysis showed that chitosan with different molecular weight have the same functional groups. Increasing molecular weight of chitosan increase NH2 groups and degree of deacetylation. The removing turbidity of kaolin suspension showed that increasing molecular weight chitosan increase removing turbidity of kaolin suspension. Using double coagulant (chitosan and tawas) have the removing turbidity greater than single coagulant.","PeriodicalId":31725,"journal":{"name":"Jurnal Kimia Mulawarman","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49668226","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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