Purification engineering of mono-diacylglycerol using creaming demulsification technique in 20 kg-scale

Glycerolysis is the easiest, cheapest, and most widely used method for producing monodiacylglycerol (MDAG). The crude MDAG resulting from chemical glycerolysis still contains a glycerol residue of more than 7.5% so it needs to be purified. Purification with a simple method using a creaming demulsification technique (CDT) on a laboratory scale has been proven to produce MDAG with a glycerol content of less than 1%. This study was aimed to apply CDT on a scale of 20 kg and determine the process conditions that need to be adjusted so that the results are not different from the laboratory scale. Through trial and error method, the process condition adjustment was done iteratively to produce MDAG glycerol content after purification of less than 1.5%. The initial content of crude MDAG was 12.48%, application of CDT on a scale of 20 kg produces pure MDAG with a glycerol residue content of 3.07% (without adjusting the process conditions) and was 1.15% (with adjusting the process conditions). The adjustments meant include: increasing the operating temperature from 65 to 70°C, changing the type of stirrer from a propeller into a 2-level impeller, applying the nozzle for electrolyte mixing, providing longer skim and cream separation opportunities (applying repeated settling), using 1.5 times more hot water for washing, the washing technique was set twice, the first washing using nozzle without stirring and the second using nozzle with stirring. The adjustments were able to increase the purity of the MDAG produced and has met the European Union and FAO/ WHO standards.</jats:p

Teknologi Pengolahan Gula Semut Aren pada Kelompok Tani di Kelurahan Penyengat Rendah Kota Jambi

Tanaman aren (Arenga pinata) &nbsp;merupakan salah satu tanaman yang diusahakan oleh masyarakat Kelurahan Penyengat Rendah Kecamatan Telanaipura Jambi. Terdapat sekitar 100 pohon aren tersebar di kawasan wilayah ini. Selama ini, nira aren dijual petani ke tempat usaha pembuatan tuak dan sebagian lagi olah menjadi gula aren cetak. &nbsp;Gula semut merupakan salah satu produk olahan nira aren yang berbentuk kristal yang memiliki harga lebih tinggi dibandingkan dengan gula aren cetak. Tujuan &nbsp;kegiatan Pengabdian Kepada Masyarakat ini adalah agar&nbsp; &nbsp;kelompok tani di Penyengat Rendah &nbsp;memiliki ilmu pengetahuan dan keterampilan mengolah nira aren menjadi gula semut. Sasaran kegiatan ini adalah Kelompok Wanita Tani Cherry dan Kelompok Tani Galusia di daerah Penyengat Rendah. Kegiatan dilakukan dalam bentuk pelatihan dan demonstrasi pembuatan gula semut. Kegiatan berjalan dengan lancar dan kelompok tani telah&nbsp; membuat gula semut secara mandiri dan menjual produknya ke konsumen

Application of MDAG from Fully Hydrogenated Palm Kernel Oil on Making of Icing Sugar and Cake

Abstract Emulsifier which has aeration capability is needed in making icing sugar and cake. The aeration capability of MDAG derived from fully hydrogenated palm kernel oil which was produced by glycerolysis (furthermore in this paper we named it as MDAG) was compared to the three types of commercial emulsifiers, namely CMC, Tween-80, and ryoto ester (SP). The parameters observed were specific gravity values (for icing sugar), volume increasing and texture (for cakes). The study was arranged in a completely randomized design with 4 replications, the data obtained were analysis by ANOVA and further tests with Duncan New Multiple Range Test (DNMRT). The results showed that MDAG had better aeration capabilities than CMC and Tween-80, and slightly lower than SP. The specific gravity of icing sugar made with no emulsifier, Tween-80, MDAG and SP were 0.76; 0.58; 0.56; and 0.38 gr/cm3, respectively. MDAG's aeration capability in cake making was also quite good. The increasing volume of cake was greater than CMC and Tween-80, and slightly lower than SP. Cake texture was more compact, not too porous, and more tender.</jats:p