Pub Date : 2021-08-10DOI: 10.20885/ijcr.vol6.iss1.art1
M. Anugrahwati, Febi Indah Fajarwati, Rika Awalin Safitri
In this research, salacca edulis peel was synthesized into activated carbon as Pb2+ ion adsorbent. This conversion process involved an affordable method of carbonization and activation using KOH. The adsorbent material obtained was then characterized by FTIR and used in the study of kinetics and adsorption isotherms in solutions containing Pb2+. The characterization results indicated functional groups that may be involved in adsorption such as O-H. In the adsorption application, the determination of the concentration of Pb2+ was analyzed using Atomic Absorption Spectrophotometry (AAS). The optimum adsorption time condition in this study was 15 minutes with adsorption capacity reaching 90% where the adsorption kinetics followed pseudo second order while the adsorption isotherm was in accordance with the Langmuir isotherm equation
{"title":"ADSORPSI Pb(II) DARI AIR DENGAN KARBON AKTIF DARI KULIT SALAK PONDOH : KINETIKA DAN ISOTERM ADSORBSI","authors":"M. Anugrahwati, Febi Indah Fajarwati, Rika Awalin Safitri","doi":"10.20885/ijcr.vol6.iss1.art1","DOIUrl":"https://doi.org/10.20885/ijcr.vol6.iss1.art1","url":null,"abstract":"In this research, salacca edulis peel was synthesized into activated carbon as Pb2+ ion adsorbent. This conversion process involved an affordable method of carbonization and activation using KOH. The adsorbent material obtained was then characterized by FTIR and used in the study of kinetics and adsorption isotherms in solutions containing Pb2+. The characterization results indicated functional groups that may be involved in adsorption such as O-H. In the adsorption application, the determination of the concentration of Pb2+ was analyzed using Atomic Absorption Spectrophotometry (AAS). The optimum adsorption time condition in this study was 15 minutes with adsorption capacity reaching 90% where the adsorption kinetics followed pseudo second order while the adsorption isotherm was in accordance with the Langmuir isotherm equation","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"60 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88439724","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}
Pub Date : 2021-08-10DOI: 10.20885/ijcr.vol6.iss1.art4
Agil Lestari, Sigit Samsunar
Textile waste is one of the most common liquid wastes and has the potential to pollute the environment. This is due to the high level of water pollution and the degree of water contamination indicating the presence of TSS solids which increase the density of waste and textile waste water also contains very complex pollutants such as metal Chrome (Cr). Based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Quality standards for wastewater for businesses and / or activities of the textile industry for total suspended solids (TSS) parameters of 50mg / L and for total chromium (Cr) metal parameters of 1.0 mg / L To overcome this problem, it is necessary to analyze TSS levels and total chromium metal whether it is in accordance with the textile industry wastewater quality standards. Analysis of TSS levels can be done using gravimetric methods and analysis of total chromium metal levels using the AAS instrument. From the analysis, it was found that the total TSS and chromium metal levels in the waste were still below the standard threshold for wastewater quality, namely 20 mg / L for TSS levels and total chromium metal at 0.112 mg / L.
{"title":"Analisis Kadar Padatan Tersuspensi Total (TSS) Dan Logam Krom Total (Cr) Pada Limbah Tekstil Di Dinas Lingkungan Hidup Sukoharjo","authors":"Agil Lestari, Sigit Samsunar","doi":"10.20885/ijcr.vol6.iss1.art4","DOIUrl":"https://doi.org/10.20885/ijcr.vol6.iss1.art4","url":null,"abstract":"Textile waste is one of the most common liquid wastes and has the potential to pollute the environment. This is due to the high level of water pollution and the degree of water contamination indicating the presence of TSS solids which increase the density of waste and textile waste water also contains very complex pollutants such as metal Chrome (Cr). Based on the Regulation of the Minister of Environment and Forestry of the Republic of Indonesia Quality standards for wastewater for businesses and / or activities of the textile industry for total suspended solids (TSS) parameters of 50mg / L and for total chromium (Cr) metal parameters of 1.0 mg / L To overcome this problem, it is necessary to analyze TSS levels and total chromium metal whether it is in accordance with the textile industry wastewater quality standards. Analysis of TSS levels can be done using gravimetric methods and analysis of total chromium metal levels using the AAS instrument. From the analysis, it was found that the total TSS and chromium metal levels in the waste were still below the standard threshold for wastewater quality, namely 20 mg / L for TSS levels and total chromium metal at 0.112 mg / L.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"30 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85773666","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}
Pub Date : 2020-11-05DOI: 10.20885/ijcr.vol5.iss2.art2
N. H. Airun, Zukhrufi Zukhrufi, F. I. Fajarwati
Aricryl synthesis was carried out by feeding technique. The monomers used were styrene, isobutyl acrylate, 2-HEMA and acrylamide powder. The catalysts used were AIBN (Azobisisobutyronitrile) and Perbutyl O98. The synthesis results were then devided by 2 for resin batch G-0915 A was diluted in > 63% mixture of n-butanol and methanol, while for G-0915 B was carried out dilution in > 63% toluene. the results obtained were compared based on the influence of the solvent using the parameters of viscosity, NV/total solid, AV (Acid Value), color and OH value. It was found that the best solvent according to specifications is toluene solvent with a viscosity of Z2-15. The Aricryl batch G-0915 was compared with Aricryl batch G-0903 based on the influence of the quantity of catalyst. The results showed that the increasing quantity of catalyst affects the aging process. Aging duration for Aricryl batch G-0903 was 11 hours, while for Arycril batch G-0915 was 8 hours.
{"title":"STUDY OF THE EFFECT OF SOLVENT AND QUANTITY OF CATALYST ON ARICRYL POLYMERIZATION AT PT. ARISTEK HIGHPOLYMER BEKASI","authors":"N. H. Airun, Zukhrufi Zukhrufi, F. I. Fajarwati","doi":"10.20885/ijcr.vol5.iss2.art2","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss2.art2","url":null,"abstract":"Aricryl synthesis was carried out by feeding technique. The monomers used were styrene, isobutyl acrylate, 2-HEMA and acrylamide powder. The catalysts used were AIBN (Azobisisobutyronitrile) and Perbutyl O98. The synthesis results were then devided by 2 for resin batch G-0915 A was diluted in > 63% mixture of n-butanol and methanol, while for G-0915 B was carried out dilution in > 63% toluene. the results obtained were compared based on the influence of the solvent using the parameters of viscosity, NV/total solid, AV (Acid Value), color and OH value. It was found that the best solvent according to specifications is toluene solvent with a viscosity of Z2-15. The Aricryl batch G-0915 was compared with Aricryl batch G-0903 based on the influence of the quantity of catalyst. The results showed that the increasing quantity of catalyst affects the aging process. Aging duration for Aricryl batch G-0903 was 11 hours, while for Arycril batch G-0915 was 8 hours.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86183613","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}
Pub Date : 2020-11-05DOI: 10.20885/ijcr.vol5.iss2.art1
Desi Nasriyanti, Zukhrufi Zukhrufi, F. I. Fajarwati
Aricryl polymerization is made in three stages according to the addition polymerization scheme, namely initiation, termination and propagation. The processed aricryl polymerization was batch G-0903, G-0915A and G-0915B. The difference in each batch is the use of solvents for dilution. Dilution for resin batch G-0905 was carried out in >63% n-butanol and toluene. Dilution for resin carried out in >63% toluene. Based on data on the application of wood coatings, the best results were in batch G-0905 with a hardness value of 97, a glass value of 97 and a drying time of 0.05. The resin obtained has a total solid specification of 59.66%, a viscosity of Z2-Z3, an acid number of 0.45 mg KOH/g, a colorless than I and the resulting resin is clear and clean.
{"title":"EFFECT OF SOLVENTS ON ARICRYL POLYMERIZATION AND APPLICATION IN WOOD COATINGS","authors":"Desi Nasriyanti, Zukhrufi Zukhrufi, F. I. Fajarwati","doi":"10.20885/ijcr.vol5.iss2.art1","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss2.art1","url":null,"abstract":"Aricryl polymerization is made in three stages according to the addition polymerization scheme, namely initiation, termination and propagation. The processed aricryl polymerization was batch G-0903, G-0915A and G-0915B. The difference in each batch is the use of solvents for dilution. Dilution for resin batch G-0905 was carried out in >63% n-butanol and toluene. Dilution for resin carried out in >63% toluene. Based on data on the application of wood coatings, the best results were in batch G-0905 with a hardness value of 97, a glass value of 97 and a drying time of 0.05. The resin obtained has a total solid specification of 59.66%, a viscosity of Z2-Z3, an acid number of 0.45 mg KOH/g, a colorless than I and the resulting resin is clear and clean.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"36 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73886176","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}
Pub Date : 2020-07-29DOI: 10.20885/ijcr.vol5.iss1.art1
W. Winata, I. Yanti
Recovery of Cu(II) and Pb(II) which are mostly contained in industrial liquid waste, both large and home industries, have been carried out, one of them is by the adsorption process. This research was carried out kinetics study of adsorption of Cu(II) and Pb(II) in liquid waste to determine the effectiveness of biosorbents from Nephelium fruit peel extracts against liquid wastes containing Cu(II) and Pb(II). Determination of Cu(II) and Pb(II) adsorption kinetics by using biosorbent from rambutan fruit peel extract was done through several kinetic models namely the Langmuir-Hinshelwood, Santosa, Lagergreen and Ho kinetics models. The Cu(II) and Pb(II) adsorption kinetics all follow the Ho kinetics model, which is the kinetics mechanism of pseudo-second order.
{"title":"Adsorption Kinetics Study of Cu(II) and Pb(II) Using Biosorbent from Nephelium Fruit Peel Extract Polymers","authors":"W. Winata, I. Yanti","doi":"10.20885/ijcr.vol5.iss1.art1","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss1.art1","url":null,"abstract":"Recovery of Cu(II) and Pb(II) which are mostly contained in industrial liquid waste, both large and home industries, have been carried out, one of them is by the adsorption process. This research was carried out kinetics study of adsorption of Cu(II) and Pb(II) in liquid waste to determine the effectiveness of biosorbents from Nephelium fruit peel extracts against liquid wastes containing Cu(II) and Pb(II). Determination of Cu(II) and Pb(II) adsorption kinetics by using biosorbent from rambutan fruit peel extract was done through several kinetic models namely the Langmuir-Hinshelwood, Santosa, Lagergreen and Ho kinetics models. The Cu(II) and Pb(II) adsorption kinetics all follow the Ho kinetics model, which is the kinetics mechanism of pseudo-second order.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86819718","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}
Pub Date : 2020-06-19DOI: 10.20885/ijcr.vol5.iss1.art5
Rico Nurillahi, I. Fatimah, Dwi Halimah, G. D. Apriliani
The TiO2/Vulcanic ash as a photocatalyst for batik waste treatment has been conducted in this study. thas been synthesized in this study. Titanium precursor has been dispersed into volcanic ash powder suspension followed by drying and calcination. Characterization of material was conducted by using X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Fourier Transform InfraRed (FT-IR) and spectrophotometer UV-Visible. The material was applied in batik’s waste water photooxidation at varied treatment of the addition of H2O2 and potassium peroxodisulphate as oxidant. In this research, from varied treatment is concluded that with addition of potassium peroxodisulphate have better effectivity than using H2O2. TiO2/Vulcanic Ash is a potential material that can be developed for batik’s wastewater treatment under photooxidation mechanism with low-cost treatment and friendly for environmental.
{"title":"Synthesis of TiO2/Vulcanic Ash as Photocatalyst for Batik Wastewater Treatment in Household Scale","authors":"Rico Nurillahi, I. Fatimah, Dwi Halimah, G. D. Apriliani","doi":"10.20885/ijcr.vol5.iss1.art5","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss1.art5","url":null,"abstract":"The TiO2/Vulcanic ash as a photocatalyst for batik waste treatment has been conducted in this study. thas been synthesized in this study. Titanium precursor has been dispersed into volcanic ash powder suspension followed by drying and calcination. Characterization of material was conducted by using X-Ray Diffraction (XRD), X-Ray Fluorescence (XRF), Fourier Transform InfraRed (FT-IR) and spectrophotometer UV-Visible. The material was applied in batik’s waste water photooxidation at varied treatment of the addition of H2O2 and potassium peroxodisulphate as oxidant. In this research, from varied treatment is concluded that with addition of potassium peroxodisulphate have better effectivity than using H2O2. TiO2/Vulcanic Ash is a potential material that can be developed for batik’s wastewater treatment under photooxidation mechanism with low-cost treatment and friendly for environmental.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81047120","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}
Pub Date : 2020-06-19DOI: 10.20885/ijcr.vol5.iss1.art4
Nova Restu Nur Ardiyanto, Try Nur Arisky, Baiq Milla Fadilla
This study will highlight the potency of Mahogany wood biochar as an adsorbent for Cr (VI) in Batik wastewater. Adsorption is a good method for the treatment of certain types of waste. One promising adsorbent is activated carbon. Activated carbon can be prepared from materials that contain high carbon-based organic compounds such as cellulose and hemiscellulose. Mahogany wood contains a lot of content such as cellulose, holocellulose, hemicellulose and lignin respectively 47.26, 74.63, 23.37 and 25.82 in percent. The organic compounds contained rich Carbon are good raw material for biochar preparation. Biochar is a porous wood charcoal substance (porous). Biochar magnetic was remarkable material to reduce metal Cr (VI) from Batik wastewater. This study was concluded that Mahogany wood characteristics that are almost the same as other wood could potentially be used as raw materials for biochar for adsorption Cr (VI) from batik waste.
{"title":"Biochar From Sawdust Modified Mahogany Magnetite (Fe3O4) to Reduce Chromium Metal Levels in Batik","authors":"Nova Restu Nur Ardiyanto, Try Nur Arisky, Baiq Milla Fadilla","doi":"10.20885/ijcr.vol5.iss1.art4","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss1.art4","url":null,"abstract":"This study will highlight the potency of Mahogany wood biochar as an adsorbent for Cr (VI) in Batik wastewater. Adsorption is a good method for the treatment of certain types of waste. One promising adsorbent is activated carbon. Activated carbon can be prepared from materials that contain high carbon-based organic compounds such as cellulose and hemiscellulose. Mahogany wood contains a lot of content such as cellulose, holocellulose, hemicellulose and lignin respectively 47.26, 74.63, 23.37 and 25.82 in percent. The organic compounds contained rich Carbon are good raw material for biochar preparation. Biochar is a porous wood charcoal substance (porous). Biochar magnetic was remarkable material to reduce metal Cr (VI) from Batik wastewater. This study was concluded that Mahogany wood characteristics that are almost the same as other wood could potentially be used as raw materials for biochar for adsorption Cr (VI) from batik waste.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90476785","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}
Pub Date : 2020-06-18DOI: 10.20885/ijcr.vol5.iss1.art3
Danna Amelia, D. Rubiyanto
The isolation and identification of physico-chemical properties of fresh and wilted cananga (Cananga odorata) essential oil were conducted. Essential oil of cananga flower was isolated by steam distillation method. The chemical components of the two conditions of the cananga flower were analyzed using the GCMS instrument. Several physical parameters including color, odor, specific gravity and refractive index were carried out in this study. The analysis showed that the yield of essential oil on fresh and wilted cananga flowers was 0.325 and 0.276 respectively.
{"title":"Comparison of the essential oil of fresh cananga (Cananga odorata) flowers and wilted cananga","authors":"Danna Amelia, D. Rubiyanto","doi":"10.20885/ijcr.vol5.iss1.art3","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss1.art3","url":null,"abstract":"The isolation and identification of physico-chemical properties of fresh and wilted cananga (Cananga odorata) essential oil were conducted. Essential oil of cananga flower was isolated by steam distillation method. The chemical components of the two conditions of the cananga flower were analyzed using the GCMS instrument. Several physical parameters including color, odor, specific gravity and refractive index were carried out in this study. The analysis showed that the yield of essential oil on fresh and wilted cananga flowers was 0.325 and 0.276 respectively.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"97 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91179805","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}
Pub Date : 2020-06-17DOI: 10.20885/ijcr.vol5.iss1.art2
Wanda Hamidah, Cintia Cindramawa
This study has been conducted to determine the levels of pH, Total Dissolved Solid (TDS), and manganese (Mn) from a well water in Cirebon (A), well water from Laboratorium Perumda Tirta Giri Nata Kota Cirebon (B), dan air Perumda Tirta Giri Nata Kota Cirebon (C). Sampling using a simple random sampling method. Analysis of pH and TDS using a conductometer ADWA AD8000. Concentration of Mn has been analyzed using HACH DR1900 spectrophotometer. The results show that the pH value of sample of A, B and C are 6.53, 7.00 and 6.78. The result of TDS are 381 mg/L, 421 mg/L and 176 mg/L for A, B and C sample respectively. Whilst, the concentration of Mn are 0.680 mg/L, 0.128 mg/L and 0.012 mg/L for A, B and C. Analysis of pH and TDS on all samples showed that they were within safe limits for clean water and drinking water.
本研究旨在测定Cirebon井水(a)、Perumda Tirta Giri Nata Kota Cirebon实验室的井水(B)和Perumda Tirta Giri Nata Kota Cirebon实验室的井水(C)的pH值、总溶解固体(TDS)和锰(Mn)水平。采用简单的随机抽样方法进行采样。用ADWA AD8000电导仪分析pH和TDS。用HACH DR1900分光光度计分析了锰的浓度。结果表明，A、B和C样品的pH值分别为6.53、7.00和6.78。A、B、C样品的TDS分别为381 mg/L、421 mg/L、176 mg/L。A、B和c的Mn浓度分别为0.680 mg/L、0.128 mg/L和0.012 mg/L。对所有样品的pH和TDS分析表明，它们在清洁水和饮用水的安全范围内。
{"title":"Analysis of pH, Total Dissolved Solid (TDS), and Mn levels in Well Water in Cirebon Regency","authors":"Wanda Hamidah, Cintia Cindramawa","doi":"10.20885/ijcr.vol5.iss1.art2","DOIUrl":"https://doi.org/10.20885/ijcr.vol5.iss1.art2","url":null,"abstract":"This study has been conducted to determine the levels of pH, Total Dissolved Solid (TDS), and manganese (Mn) from a well water in Cirebon (A), well water from Laboratorium Perumda Tirta Giri Nata Kota Cirebon (B), dan air Perumda Tirta Giri Nata Kota Cirebon (C). Sampling using a simple random sampling method. Analysis of pH and TDS using a conductometer ADWA AD8000. Concentration of Mn has been analyzed using HACH DR1900 spectrophotometer. The results show that the pH value of sample of A, B and C are 6.53, 7.00 and 6.78. The result of TDS are 381 mg/L, 421 mg/L and 176 mg/L for A, B and C sample respectively. Whilst, the concentration of Mn are 0.680 mg/L, 0.128 mg/L and 0.012 mg/L for A, B and C. Analysis of pH and TDS on all samples showed that they were within safe limits for clean water and drinking water.","PeriodicalId":33936,"journal":{"name":"Indonesian Journal of Chemical Research","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88415913","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}
Pub Date : 2019-07-16DOI: 10.20885/IJCR.VOL4.ISS1.ART3
Farah Khilma Yustica, N. Widiastuti, Nava Sapitri, D. Fitriastuti
Jerawat merupakan penyakit radang yang terjadi di kulit wajah, leher, dada dan punggung yang salah satunya disebabkan oleh bakteri. Salah satu bahan yang memiliki aktivitas antibakteri yaitu minyak lengkuas merah. Minyak atsiri diperoleh dengan cara distilasi uap-air. Penelitian ini bertujuan untuk mengetahui kandungan kimia minyak atsiri lengkuas merah Alpinia purpurata (Zingiberaceae) dan formulasi krim dari minyak atsiri lengkuas merah sebagai krim anti jerawat. Sediaan krim dipilih karena merupakan sistem emulsi yang mudah dioleskan dengan tekstur yang lembut dan dapat digunakan pada bagian kulit yang luas dan berfungsi sebagai pelindung yang baik bagi kulit. Minyak atsiri diformulasikan dalam sediaan krim dengan perbandingan konsentrasi minyak atsiri F1(0 persen), F2 (2,5persen), F3 (5persen), F4 (10persen). Minyak atsiri lengkuas merah diuji sifat fisik meliputi warna, bau, rendemen, berat jenis, indeks bias serta dianalisis menggunakan GC-MS. Berdasarkan hasil GC-MS minyak lengkuas merah didominasi oleh senyawa Beta-sesquiphellandrene dan Beta-bisabolene yang merupakan golongan terpenoid. Evaluasi sediaan krim meliputi pemeriksaan organoleptis seperti bau, warna, bentuk serta pengujian daya sebar, daya serap, homogenitas, pH, dan antibakteri. Hasil evaluasi sediaan krim menunjukkan sediaan homogen, pH sesuai dengan pH kulit, daya sebar yaitu meningkat untuk setiap penambahan beban. Kata kunci: Alpinia purpurata, minyak atsiri, formulasi, krim anti jerawat
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