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All Journal JURNAL TEKNOLOGI KIMIA DAN INDUSTRI
H Hargono
Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro
Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Industrial & Manufacturing Engineering

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EKSTRAKSI GLUKOMANNAN DARI TANAMAN ILES-ILES (Amorphophallus oncophillus) DENGAN PELARUT AIR DAN PENJERNIH KARBON AKTIF Irene Nindita P; Noor Amalia; H Hargono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Iles-iles (Amorphophallus oncophyllus) is a type of plant that is very potential to be developed  in terms of medical, industrial and food. ). Iles-iles contains high glucomannan, namely 45-65% (Arifin, 2001).. The purpose of this study is to determine the variables influencing the extraction process iles-iles becomes glucomannan, obtain optimum conditions and to search the influence of activated carbon. In this research there are two steps experiment, which is extraction and  analyzed glucomannan content. This research uses two levels design factorial method with three variables. Fixed variables used 35 grams of iles-iles flour. Free variables used solvent with low level (-) 400 ml and upper level (+) 800 ml, temperature with low level (-) 35°C and upper level (+) 50°C, and the weight of activated carbon with low level (-) 1,25 gr and upper level (+) 1,8 gr. In the experimental results can be seen that the most influental variable is the solvent. The less the amount of solvent, the more content glucomannan obtained. The result of glucomannan extraction after given the addition of activated carbon obtained colors more clearly. Iles-Iles optimum processing conditions to be glucomannan is the 300 ml solvent with the temperature is 35OC and the weight of activated carbon is 1,25 gram.
OPTIMASI PROSES EKSTRAKSI GINGEROL DARI RIMPANG JAHE SEGAR MENGGUNAKAN PELARUT n-HEXANE SECARA BATCH Fitra Pradhita; Margaretha Praba Aulia; H Hargono
JURNAL TEKNOLOGI KIMIA DAN INDUSTRI Volume 1, Nomor 1, Tahun 2012
Publisher : Jurusan Teknik Kimia, Fakultas Teknik, Universitas Diponegoro,

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Abstract

Ginger contains gingerol which is very useful in the industry. Gingerol can be used in the crosslinking of starch to crosslinking the carbon chains in the starch. Gingerol on the market are still rare, expensive and of poor quality, so it needs to be studied gingerol extraction method to efficiently generate high-quality gingerol. This study aims to determine the most influential variables between solvent feed ratio, particle size ginger, temperature and look for the optimum operating conditions on the extraction of gingerol from fresh ginger rhizome. This study is planned by the method of factorial design two levels and three independent variables are: temperature (50 and 60 °C), particle size (10x10x1 mm and 5x5x1 mm), solvent feed ratio (1:6 and 1:4 g / ml solvent) . Dependent variable used is the volume of n-hexane 300 ml technical, stirring speed of 450 rpm and extraction time 1hr with sampling every 10 minutes. 3 variables show a positive influence / improve gingerol obtained and solvent feed ratio is the most influential. Optimum conditions in the extraction process is at a temperature of 60 ° C gingerol, 5x5x1 mm particle size, and solvent feed ratio of 1:4 g / ml solvent.
Co-Authors Fitra Pradhita Irene Nindita P Margaretha Praba Aulia Noor Amalia