Pub Date : 2023-04-29DOI: 10.31942/inteka.v8i1.8309
Safaah Nurfaizin, I. Hartati
Satu diantara biomass yang dapat dimanfaatkan sebagai sunber energi adalah limbah kulit nanas yang kaya akan kandungan selulosa. Kandungan lignin yang cukup tinggi dalam kulit nanas menjadi masalah dalam proses hidrolisis. Penelitian yang telah dilakukan untuk mengurangi kandungan lignin dengan metode delignifikasi MAE (microwave asissted extraction). Dari hasil penelitian yang telah dilakukan denagn memvariasikan suhu operasi pada 70oC, 80oC dan 90oC diperoleh hasil bahwa degradasi lignin meningkat seiring dengan kenaikan suhu operasi MAE. Pada sampel kontrol tenpa perlakuan MAE diperoleh kelarutan lignin dan selulosa sebesar 2,68% dan 17,39% dari berat sampel kering. Sedangkan setelah dilakukan proses delignifikasi MAE pada sampel, kelarutan lignin dan selulosa meningkat hingga 9,04% dan 29,42% dari berat sampel. Hasil tersebut diperoleh pada kondisi operasi suhu 90oC, waktu 20 menit dan rasio 1:20 (b/v). Kemudian hasil dilakukan analisa lanjutan dengan menggunakan FTIR untuk membandingkan komponen organik yang terdapat pada sampel. Ditemukan hasil yang serupa pada serapan didaerah lebar peak 3320 dan 3333 cm-1 pada grafik result spectrum menunjukkan getaran gugus O-H bebas pada sekelompok gugus hidroksil dari molekul selulosa pada kulit nanas. Wavenumber 1625 dan 1630 cm-1 pada grafik result spectrum pretreatment microwave dan menunjukkan getaran rantai aromatik pada lignin. Pada puncak peak 1032 dan 1034 cm-1 merupakan regangan cincin glukosa, yang merupakan perubahan bentuk dari C-H pada selulosa dan hemiselulosa. Secara umum puncak grafik serapan semakin berkurang, hal tersebut menunjukkan bahwa pelakuan microwave pada kulit nanas dapat mengurangi kandungan lignin pada limbah kulit nanas.Kata kunci: Selulosa, Nanas, Delignifikasi, Biogas, Microwave
{"title":"OPTIMASI SELULOSA LIMBAH KULIT NANAS UNTUK PRODUKSI BIOGAS MELALUI METODE DELIGNIFIKASI MAE (MICROWAVE ASISSTED EXTRACTION) DENGAN PELARUT AQUADES","authors":"Safaah Nurfaizin, I. Hartati","doi":"10.31942/inteka.v8i1.8309","DOIUrl":"https://doi.org/10.31942/inteka.v8i1.8309","url":null,"abstract":"Satu diantara biomass yang dapat dimanfaatkan sebagai sunber energi adalah limbah kulit nanas yang kaya akan kandungan selulosa. Kandungan lignin yang cukup tinggi dalam kulit nanas menjadi masalah dalam proses hidrolisis. Penelitian yang telah dilakukan untuk mengurangi kandungan lignin dengan metode delignifikasi MAE (microwave asissted extraction). Dari hasil penelitian yang telah dilakukan denagn memvariasikan suhu operasi pada 70oC, 80oC dan 90oC diperoleh hasil bahwa degradasi lignin meningkat seiring dengan kenaikan suhu operasi MAE. Pada sampel kontrol tenpa perlakuan MAE diperoleh kelarutan lignin dan selulosa sebesar 2,68% dan 17,39% dari berat sampel kering. Sedangkan setelah dilakukan proses delignifikasi MAE pada sampel, kelarutan lignin dan selulosa meningkat hingga 9,04% dan 29,42% dari berat sampel. Hasil tersebut diperoleh pada kondisi operasi suhu 90oC, waktu 20 menit dan rasio 1:20 (b/v). Kemudian hasil dilakukan analisa lanjutan dengan menggunakan FTIR untuk membandingkan komponen organik yang terdapat pada sampel. Ditemukan hasil yang serupa pada serapan didaerah lebar peak 3320 dan 3333 cm-1 pada grafik result spectrum menunjukkan getaran gugus O-H bebas pada sekelompok gugus hidroksil dari molekul selulosa pada kulit nanas. Wavenumber 1625 dan 1630 cm-1 pada grafik result spectrum pretreatment microwave dan menunjukkan getaran rantai aromatik pada lignin. Pada puncak peak 1032 dan 1034 cm-1 merupakan regangan cincin glukosa, yang merupakan perubahan bentuk dari C-H pada selulosa dan hemiselulosa. Secara umum puncak grafik serapan semakin berkurang, hal tersebut menunjukkan bahwa pelakuan microwave pada kulit nanas dapat mengurangi kandungan lignin pada limbah kulit nanas.Kata kunci: Selulosa, Nanas, Delignifikasi, Biogas, Microwave","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126643686","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8089
Allam Anasrul Amri, Tri Widayatno
Limbah cair tahu dapat menimbulkan pencemaran karena terdapat kandungan biological oxygen demand (BOD), chemical oxygen demond (COD), dan total suspended solid (TSS) yang sangat tinggi dapat mencemari lingkungan sekitar apabila dibuang ke sungai. Sebab itu kadarnya harus diturunkan sebelum dibuang ke sungai lingkungan sekitar. Yaitu dengan cara mengolah limbah cair tahu dengan cara biofilter. Biofilter yang digunakan yaitu yang bermedia filter batu krikil dan batu koral yang memiliki tujuan mengetahui penurunan kadar pencemaran pada parameter BOD, COD, dan TSS limbah cair tahu menggunakan biofilter. Pada hasil penelitian memperlihatkan penurunan kadar limbah cair tahu menggunakan biofilter memiliki nilai BOD sebesar 737,9 mg/L, COD sebesar 6.333 mg/L, TSS sebesar 84 mg/L, dan pH sebesar 6 – 7. Kata kunci: Biofilter, BOD, COD, Limbah Tahu, TSS (min. 3, maks. 5 kata, sesuai urutan abjad)
{"title":"PENURUNAN KADAR BOD, COD, TSS, DAN pH PADA LIMBAH CAIR TAHU DENGAN MENGGUNAKAN BIOFILTER","authors":"Allam Anasrul Amri, Tri Widayatno","doi":"10.31942/inteka.v18i1.8089","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8089","url":null,"abstract":"Limbah cair tahu dapat menimbulkan pencemaran karena terdapat kandungan biological oxygen demand (BOD), chemical oxygen demond (COD), dan total suspended solid (TSS) yang sangat tinggi dapat mencemari lingkungan sekitar apabila dibuang ke sungai. Sebab itu kadarnya harus diturunkan sebelum dibuang ke sungai lingkungan sekitar. Yaitu dengan cara mengolah limbah cair tahu dengan cara biofilter. Biofilter yang digunakan yaitu yang bermedia filter batu krikil dan batu koral yang memiliki tujuan mengetahui penurunan kadar pencemaran pada parameter BOD, COD, dan TSS limbah cair tahu menggunakan biofilter. Pada hasil penelitian memperlihatkan penurunan kadar limbah cair tahu menggunakan biofilter memiliki nilai BOD sebesar 737,9 mg/L, COD sebesar 6.333 mg/L, TSS sebesar 84 mg/L, dan pH sebesar 6 – 7. \u0000 \u0000Kata kunci: Biofilter, BOD, COD, Limbah Tahu, TSS (min. 3, maks. 5 kata, sesuai urutan abjad)","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123078954","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8092
Zepyra Damayanti, S. Sudarti, Y. Yushardi
{"title":"ANALISIS KARAKTERISTIK FUEL PIROLISIS SAMPAH PLASTIK BERDASARKAN JENIS PLASTIK YANG DIGUNAKAN: REVIEW","authors":"Zepyra Damayanti, S. Sudarti, Y. Yushardi","doi":"10.31942/inteka.v18i1.8092","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8092","url":null,"abstract":"","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114622107","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8090
Febriana Tri Nur Suliana, S. Sudarti, Y. Yushardi
{"title":"PEMANFAATAN AIR SUNGAI SAMPEAN BARU SEBAGAI SUMBER AIR BERSIH WARGA DESA SAMPEAN KECAMATAN KLABANG","authors":"Febriana Tri Nur Suliana, S. Sudarti, Y. Yushardi","doi":"10.31942/inteka.v18i1.8090","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8090","url":null,"abstract":"","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123193934","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8093
M. Susanti, D. Ariyanti, Silvi Ardianti, Wieke Febriawan Citra Mahanani
Emprit ginger rhizome (Zingiber officinale Var. amarum) is a raw material for traditional medicine which has a frequency of use with the largest percentage of 9.65% compared to other spices. Emprit ginger rhizome is used in medicinal formulations both in fresh and instant form as antiseptic, expectorant, spasmolytic and anti-asthmatic because emprit ginger contains monoterpenoid compounds and 3.5% essential oils. The location where it grows gives a big role in the contamination contained in the rhizome of ginger emprit (Zingiber officinale Var. amarum). Heavy metal contamination is a quality requirement that needs to be considered in the manufacture of traditional medicine. One of the metals that contaminate the rhizome is lead (Pb), Cadmium (Cd) and Copper (Cu). The purpose of this study was to determine the effect of growing sites on differences in heavy metal levels of Lead (Pb) extract of emprit ginger rhizome using Atomic Absorption Spectrophotometry (AAS). The type of research used is exploratory research, with the independent variable is the place of growth and the dependent variable is the metal content of Pb, Cd and Cu. Analysis of the data was processed using the Anova test to determine the effect of the growing place on the metal content of Pb, Cd and Cu. The results showed that the place of growth affected the levels of heavy metals Cd and Cu with a value of (p<0.05), but had no effect on Pb (p>0.05) in the extract of emprit ginger rhizome (Zingiber officinale Var. amarum).
生姜根茎(Zingiber officinale Var. amarum)是一种传统药材原料，与其他香料相比，使用频率最高，占9.65%。由于Emprit生姜含有单萜类化合物和3.5%的精油，因此它被用于新鲜和即食的药用配方中，作为防腐剂、祛痰剂、解痉剂和抗哮喘剂。它生长的位置在生姜根茎中含有的污染中起着很大的作用。重金属污染是传统医药生产中需要考虑的质量要求。污染根茎的金属之一是铅(Pb)、镉(Cd)和铜(Cu)。采用原子吸收分光光度法(AAS)研究了不同生长部位对姜提取物中铅(Pb)含量差异的影响。研究方式为探索性研究，自变量为生长地点，因变量为Pb、Cd、Cu的金属含量。对数据进行方差分析，确定生长地点对铅、镉、铜金属含量的影响。结果表明，生长地点对姜提取物中重金属Cd和Cu含量有显著影响，影响值为(p0.05)。
{"title":"PENGARUH TEMPAT TUMBUH TERHADAP KADAR LOGAM BERAT TIMBAL (Pb), CADMIUM (Cd) dan TEMBAGA (Cu) EKSTRAK RIMPANG JAHE EMPRIT (Zingiber officinale Var. amarum) DENGAN METODE SPEKTROFOTOMETRI SERAPAN ATOM","authors":"M. Susanti, D. Ariyanti, Silvi Ardianti, Wieke Febriawan Citra Mahanani","doi":"10.31942/inteka.v18i1.8093","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8093","url":null,"abstract":"Emprit ginger rhizome (Zingiber officinale Var. amarum) is a raw material for traditional medicine which has a frequency of use with the largest percentage of 9.65% compared to other spices. Emprit ginger rhizome is used in medicinal formulations both in fresh and instant form as antiseptic, expectorant, spasmolytic and anti-asthmatic because emprit ginger contains monoterpenoid compounds and 3.5% essential oils. The location where it grows gives a big role in the contamination contained in the rhizome of ginger emprit (Zingiber officinale Var. amarum). Heavy metal contamination is a quality requirement that needs to be considered in the manufacture of traditional medicine. One of the metals that contaminate the rhizome is lead (Pb), Cadmium (Cd) and Copper (Cu). The purpose of this study was to determine the effect of growing sites on differences in heavy metal levels of Lead (Pb) extract of emprit ginger rhizome using Atomic Absorption Spectrophotometry (AAS). The type of research used is exploratory research, with the independent variable is the place of growth and the dependent variable is the metal content of Pb, Cd and Cu. Analysis of the data was processed using the Anova test to determine the effect of the growing place on the metal content of Pb, Cd and Cu. The results showed that the place of growth affected the levels of heavy metals Cd and Cu with a value of (p<0.05), but had no effect on Pb (p>0.05) in the extract of emprit ginger rhizome (Zingiber officinale Var. amarum).","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122323596","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8091
Zulfa Nurul Chairunnisa, A. Fuadi
{"title":"EFEKTIVITAS ADSORBEN KARBON AKTIF DARI TEMPURUNG KELAPA UNTUK PENGOLAHAN LIMBAH CAIR PABRIK TAHU","authors":"Zulfa Nurul Chairunnisa, A. Fuadi","doi":"10.31942/inteka.v18i1.8091","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8091","url":null,"abstract":"","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129036540","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8094
Herman Yoseph Sriyana, L. Rahayu, Margaretta Ema Febriana
Plastik konvensional yang saat ini sering digunakan berasal dari polimer minyak bumi yang tidak dapat diperbaharui dan sulit terurai oleh mikroorganisme sehingga mencemari lingkungan. Bioplastik merupakan solusi untuk mengatasi pencemaran lingkungan yang disebabkan oleh plastik yang tidak mudah terurai. Bioplastik adalah plastik yang terbuat dari bahan alam yang mampu terurai oleh mikroorganisme. Bahan alam yang memiliki potensi untuk digunakan sebagai bahan dasar bioplastik adalah kulit buah nanas yang memiliki kandungan selulosa dan zat gula sebesar 52.05 %. Tujuan penelitian ini adalah mengetahui pembuatan bioplastik dari kulit buah nanas dengan penambahan gliserol dan kitosan. Variasi gliserol yang digunakan adalah 5%, 10%, 15%, 20%, 25% dan variasai kitosan yang digunakan 0%,1%, 2%, 4%, 5%. Parameter bioplastik yang diukur pada penelitian ini meliputi uji ketebalan, tensile strength, dan ketahanan air. Hasil bioplastik terbaik diperoleh pada penambahan kitosan 5% dan gliserol 5%, dengan sifat fisik biplastik yaitu ketebalan sebesar 0,17 mm, tensile strength sebesar 40,9 MPa, dan ketahanan air sebesar 100%. Kata kunci: bioplastik, gliserol, kitosan, kulit buah nanas Abstract Conventional plastics that are currently often used are derived from petroleum polymers which are non-renewable and difficult to decompose by microorganisms, thus polluting the environment. Bioplastics are a solution to overcome environmental pollution caused by plastics that do not decompose easily. Bioplastics are plastics made from natural materials that can be decomposed by microorganisms. Natural materials that have the potential to be used as basic ingredients for bioplastics are pineapple peels which contain 52.05% cellulose and sugars. The purpose of this study was to determine the manufacture of bioplastics from pineapple peels with the addition of glycerol and chitosan. Variations of glycerol used were 5%, 10%, 15%, 20%, 25% and variations of chitosan used were 0%, 1%, 2%, 4%, 5%. Bioplastic parameters measured in this study included thickness, tensile strength, and water resistance tests. The best bioplastic results were obtained by adding 5% chitosan and 5% glycerol, with the physical properties of biplastic, namely a thickness of 0.17 mm, a tensile strength of 40.9 MPa, and a water resistance of 100%. Keywords: bioplastics, glycerol, chitosan, pineapple peel
{"title":"BIOPLASTIK DARI LIMBAH KULIT BUAH NANAS DENGAN MODIFIKASI GLISEROL DAN KITOSAN","authors":"Herman Yoseph Sriyana, L. Rahayu, Margaretta Ema Febriana","doi":"10.31942/inteka.v18i1.8094","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8094","url":null,"abstract":"Plastik konvensional yang saat ini sering digunakan berasal dari polimer minyak bumi yang tidak dapat diperbaharui dan sulit terurai oleh mikroorganisme sehingga mencemari lingkungan. Bioplastik merupakan solusi untuk mengatasi pencemaran lingkungan yang disebabkan oleh plastik yang tidak mudah terurai. Bioplastik adalah plastik yang terbuat dari bahan alam yang mampu terurai oleh mikroorganisme. Bahan alam yang memiliki potensi untuk digunakan sebagai bahan dasar bioplastik adalah kulit buah nanas yang memiliki kandungan selulosa dan zat gula sebesar 52.05 %. Tujuan penelitian ini adalah mengetahui pembuatan bioplastik dari kulit buah nanas dengan penambahan gliserol dan kitosan. Variasi gliserol yang digunakan adalah 5%, 10%, 15%, 20%, 25% dan variasai kitosan yang digunakan 0%,1%, 2%, 4%, 5%. Parameter bioplastik yang diukur pada penelitian ini meliputi uji ketebalan, tensile strength, dan ketahanan air. Hasil bioplastik terbaik diperoleh pada penambahan kitosan 5% dan gliserol 5%, dengan sifat fisik biplastik yaitu ketebalan sebesar 0,17 mm, tensile strength sebesar 40,9 MPa, dan ketahanan air sebesar 100%. \u0000 \u0000Kata kunci: bioplastik, gliserol, kitosan, kulit buah nanas \u0000 \u0000Abstract \u0000Conventional plastics that are currently often used are derived from petroleum polymers which are non-renewable and difficult to decompose by microorganisms, thus polluting the environment. Bioplastics are a solution to overcome environmental pollution caused by plastics that do not decompose easily. Bioplastics are plastics made from natural materials that can be decomposed by microorganisms. Natural materials that have the potential to be used as basic ingredients for bioplastics are pineapple peels which contain 52.05% cellulose and sugars. The purpose of this study was to determine the manufacture of bioplastics from pineapple peels with the addition of glycerol and chitosan. Variations of glycerol used were 5%, 10%, 15%, 20%, 25% and variations of chitosan used were 0%, 1%, 2%, 4%, 5%. Bioplastic parameters measured in this study included thickness, tensile strength, and water resistance tests. The best bioplastic results were obtained by adding 5% chitosan and 5% glycerol, with the physical properties of biplastic, namely a thickness of 0.17 mm, a tensile strength of 40.9 MPa, and a water resistance of 100%. \u0000 \u0000Keywords: bioplastics, glycerol, chitosan, pineapple peel","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116468800","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 : 2023-02-15DOI: 10.31942/inteka.v18i1.8086
Mumpuni Asih Pratiwi, Sri Sutanti, L. Rahayu, Indriani Nur Khasanah
Sabun mandi padat aromaterapi kopi merupakan sabun mandi yang dibuat dengan menambahkan kopi ke dalam formula sabun mandi dan memberikan efek menenangkan setelah pemakaian. Tujuan penelitian ini adalah membuat sabun mandi padat aromaterapi kopi dengan mengkaji pengaruh rasio Virgin Cococonut Oil (VCO) : Asam Stearat (1:1, 3:1, dan 5:1) dan variasi penambahan jumlah serbuk kopi (4, 6, dan 8 gram) terhadap karakteristik sabun yang dihasilkan. Campuran VCO dan asam stearat dipanaskan pada suhu 70oC, kemudian larutan NaOH 30% dimasukan ke dalam campuran tersebut dan dilakukan proses pengadukan hingga diperoleh campuran yang homogen. Selanjutnya gliserin, larutan sukrosa, coco-DEA, dan serbuk kopi dimasukan ke dalam campuran dan dilakukan pengadukan kembali hingga homogen. Campuran kemudian dituang ke dalam cetakan dan dilakukan proses curing selama 1 minggu. Parameter yang diukur meliputi kadar air, kadar alkali bebas, pH, dan kestabilan busa dari sabun yang dihasilkan. Hasil penelitian menunjukkan bahwa sabun mandi padat aromaterapi kopi terbaik diperoleh pada perlakuan rasio VCO : Asam Stearat 1 : 1 dan penambahan serbuk kopi 4 gram dengan hasil kadar air 12,3 %, kadar alkali bebas 0 %, pH 10, dan kestabilan busa 68,1 %. Kata kunci : alkali bebas, asam stearat, kestabilan busa, sabun padat aromaterapi kopi, VCO
{"title":"PEMBUATAN SABUN MANDI PADAT AROMATERAPI KOPI BERBASIS VIRGIN COCONUT OIL DAN ASAM STEARAT MENGGUNAKAN METODE PANAS","authors":"Mumpuni Asih Pratiwi, Sri Sutanti, L. Rahayu, Indriani Nur Khasanah","doi":"10.31942/inteka.v18i1.8086","DOIUrl":"https://doi.org/10.31942/inteka.v18i1.8086","url":null,"abstract":"Sabun mandi padat aromaterapi kopi merupakan sabun mandi yang dibuat dengan menambahkan kopi ke dalam formula sabun mandi dan memberikan efek menenangkan setelah pemakaian. Tujuan penelitian ini adalah membuat sabun mandi padat aromaterapi kopi dengan mengkaji pengaruh rasio Virgin Cococonut Oil (VCO) : Asam Stearat (1:1, 3:1, dan 5:1) dan variasi penambahan jumlah serbuk kopi (4, 6, dan 8 gram) terhadap karakteristik sabun yang dihasilkan. Campuran VCO dan asam stearat dipanaskan pada suhu 70oC, kemudian larutan NaOH 30% dimasukan ke dalam campuran tersebut dan dilakukan proses pengadukan hingga diperoleh campuran yang homogen. Selanjutnya gliserin, larutan sukrosa, coco-DEA, dan serbuk kopi dimasukan ke dalam campuran dan dilakukan pengadukan kembali hingga homogen. Campuran kemudian dituang ke dalam cetakan dan dilakukan proses curing selama 1 minggu. Parameter yang diukur meliputi kadar air, kadar alkali bebas, pH, dan kestabilan busa dari sabun yang dihasilkan. Hasil penelitian menunjukkan bahwa sabun mandi padat aromaterapi kopi terbaik diperoleh pada perlakuan rasio VCO : Asam Stearat 1 : 1 dan penambahan serbuk kopi 4 gram dengan hasil kadar air 12,3 %, kadar alkali bebas 0 %, pH 10, dan kestabilan busa 68,1 %. \u0000 \u0000Kata kunci : alkali bebas, asam stearat, kestabilan busa, sabun padat aromaterapi kopi, VCO","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"271 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123116422","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 : 2022-11-02DOI: 10.31942/inteka.v7i2.6440
Rahel - Margareta, S. Purnavita, Lucia Hermawati
{"title":"PEMBUATAN SABUN MANDI PADAT BERBASIS MINYAK SAWIT BEKAS DENGAN AROMA SEREH","authors":"Rahel - Margareta, S. Purnavita, Lucia Hermawati","doi":"10.31942/inteka.v7i2.6440","DOIUrl":"https://doi.org/10.31942/inteka.v7i2.6440","url":null,"abstract":"","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130862494","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 : 2022-11-02DOI: 10.31942/inteka.v7i2.6893
N. Aziz, Septian Hardi Prasetya, Muhammad Afton Muhandis, Zaidi Oktari, Mugiyono Mugiyono, Agus Sunarto
Air radioactivity monitoring was carried out using a continuoust air radioactivity monitoring device, namely the SMARTCAM device, each of which was installed in the chimney of the Radiometallurgical Installation (RMI) Building and then an evaluation of the air radioactivity data was carried out every month during 2020. The purpose of this research about air monitoring was to determine the radioactivity and release from the IRM chimney to the environment during 2020. The data taken are gross alpha (α) and gross beta (β )concentrations at the RMI. The data that has been obtained is then processed to find the daily average value, then the highest average value is taken in one month. The results obtained for each month are then compared with Maximum Permissible Concentration (MPC) for the predetermined gross α and gross β. The results of data evaluation is shown that the air radioactivity monitoring during 2020 at IRM is 0.324 Bq/m3 for alpha and 6.342 Bq/m3 for beta . The amount of air radioactivity of IRM in 2020 when compared to the MPC of 2 Bq/m3 for alpha and 20 Bq/m3 for beta, the air radioactivity is still far below the maximum allowable limit, from these results it can be said that the radioactive gas/aerosol effluent released from the IRM chimney during 2020 did not cause radiological impacts and was safe for the community and the environment around the IRM building.
{"title":"EVALUATION OF AIR RADIOACTIVITY MONITORING IN RADIOMETALLURGICAL INSTALLATION","authors":"N. Aziz, Septian Hardi Prasetya, Muhammad Afton Muhandis, Zaidi Oktari, Mugiyono Mugiyono, Agus Sunarto","doi":"10.31942/inteka.v7i2.6893","DOIUrl":"https://doi.org/10.31942/inteka.v7i2.6893","url":null,"abstract":"Air radioactivity monitoring was carried out using a continuoust air radioactivity monitoring device, namely the SMARTCAM device, each of which was installed in the chimney of the Radiometallurgical Installation (RMI) Building and then an evaluation of the air radioactivity data was carried out every month during 2020. The purpose of this research about air monitoring was to determine the radioactivity and release from the IRM chimney to the environment during 2020. The data taken are gross alpha (α) and gross beta (β )concentrations at the RMI. The data that has been obtained is then processed to find the daily average value, then the highest average value is taken in one month. The results obtained for each month are then compared with Maximum Permissible Concentration (MPC) for the predetermined gross α and gross β. The results of data evaluation is shown that the air radioactivity monitoring during 2020 at IRM is 0.324 Bq/m3 for alpha and 6.342 Bq/m3 for beta . The amount of air radioactivity of IRM in 2020 when compared to the MPC of 2 Bq/m3 for alpha and 20 Bq/m3 for beta, the air radioactivity is still far below the maximum allowable limit, from these results it can be said that the radioactive gas/aerosol effluent released from the IRM chimney during 2020 did not cause radiological impacts and was safe for the community and the environment around the IRM building. ","PeriodicalId":133390,"journal":{"name":"Jurnal Inovasi Teknik Kimia","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116440022","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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