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STABILITY OF LIPASE ENZYME IN THE SYNTHESIS OF MONOACYLGLYCEROL A DERIVATIVE VEGETABLE OIL PRODUCT Prima Luna
Widyariset Vol 15, No 3 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.981 KB) | DOI: 10.14203/widyariset.15.3.2012.673–682

Abstract

Nowadays, the biotechnologically production of products using enzymes has received great considerationbecause the trend towards ecologically acceptable processes or environmentally safer. The employment of lipaseas a biocatalyst in the synthesis of monoacylgliserol (MAG) allows mild reaction conditions and easy recoveryof glycerol without purification or chemical waste production. Biocatalyst in this study was commercially immobilizedlipase from Candida antarctica. Aim of this study was to investigate the stability of commercially lipaseimmobilized enzyme in the synthesis of MAG, to understand the correlation between parameters, and to estimatethe half-life of enzyme activity. Immobilized lipase enzyme was employed in the synthesis of MAG, respectively.The re-use of this enzyme has given importance information for oil and fat’s biotechnological industries. Based onthe research results, the composition of MAG for 10 times reaction, respectively, decreased 7%, while the MAG’syield and the number of products decreased 16%. The correlation between the composition of the MAG and theyield were strong and in the same direction with r = 0,812. The half-life of immobilized lipase enzyme activity inthis study was estimated 30 times in the MAG synthesis‘s cycle due to the composition of MAGs.
Optimasi Sintesis dan Aplikasi Adsorben dari Limbah Ekstraksi Biosilika Sekam Padi Eka Rahayu; Prima Luna; Sri Usmiati; Sunarmani Sunarmani
Warta Industri Hasil Pertanian Vol 38, No 1 (2021)
Publisher : Balai Besar Industri Agro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32765/wartaihp.v38i1.6408

Abstract

Limbah proses biosilika sekam padi memiliki potensi sebagai salah satu alternatif di industri adsorben dikarenakan jumlah yang banyak dan mudah didapat. Hampir 90% dari limbah proses biosilika ini adalah mineral Silikon Dioksida (SiO2). Tujuan dari penelitian ini adalah untuk mengidentifikasi karakteristik adsorben dari ampas proses ekstraksi nanobiosilika serbuk dan aplikasinya sebagai bahan penjernihan air limbah. Metode yang digunakan pada penelitian ini adalah kalsinasi dan impregnasi. Variabel pada proses optimasi adalah  temperatur  600°C; 700°C; dan 800°C dan waktu proses, sedangkan pada metode impregnasi ampas sisa ekstraksi biosilika diaktivasi menggunakan katalis  ZnCl2, H3PO4, dan KOH pada rasio 1:1 dan 1:2 (w/v). Optimasi sintesis adsorben dari limbah ekstraksi biosilika menghasilkan produk terbaik yang digunakan sebagai penjernih air permukaan yang tercemar. Hasil penelitian ini menunjukkan sintesis adsorben melalui proses impregnasi menghasilkan luas permukaan dan daya serap iodin paling tinggi yaitu 24,32 mg/g dan 1281,65 m2/g dengan menggunakan zat pengaktivasi H3PO4. Karakteristik adsorben telah memenuhi persyaratan SNI karbon aktif. Hasil uji aplikasi penjernihan air permukaan tercemar menunjukkan bahwa adsorben pada penelitian ini menurunkan pH air permukaan tercemar hingga 7,62 dimana hal ini sebanding dengan adsorben komersial.
STABILITY OF LIPASE ENZYME IN THE SYNTHESIS OF MONOACYLGLYCEROL A DERIVATIVE VEGETABLE OIL PRODUCT Prima Luna
Widyariset Vol 15, No 3 (2012): Widyariset
Publisher : Pusbindiklat - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (535.981 KB) | DOI: 10.14203/widyariset.15.3.2012.673–682

Abstract

Nowadays, the biotechnologically production of products using enzymes has received great considerationbecause the trend towards ecologically acceptable processes or environmentally safer. The employment of lipaseas a biocatalyst in the synthesis of monoacylgliserol (MAG) allows mild reaction conditions and easy recoveryof glycerol without purification or chemical waste production. Biocatalyst in this study was commercially immobilizedlipase from Candida antarctica. Aim of this study was to investigate the stability of commercially lipaseimmobilized enzyme in the synthesis of MAG, to understand the correlation between parameters, and to estimatethe half-life of enzyme activity. Immobilized lipase enzyme was employed in the synthesis of MAG, respectively.The re-use of this enzyme has given importance information for oil and fat’s biotechnological industries. Based onthe research results, the composition of MAG for 10 times reaction, respectively, decreased 7%, while the MAG’syield and the number of products decreased 16%. The correlation between the composition of the MAG and theyield were strong and in the same direction with r = 0,812. The half-life of immobilized lipase enzyme activity inthis study was estimated 30 times in the MAG synthesis‘s cycle due to the composition of MAGs.
Co-Authors Eka Rahayu Sri Usmiati Sunarmani Sunarmani