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All Journal Warta IHP (Warta Industri Hasil Pertanian)
Noerdin NK, Moch
Balai Besar Industri Agro
Agriculture, Biological Sciences & Forestry Industrial & Manufacturing Engineering

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(The Study of Glucomannan Extraction from Iles-Iles (Amorphophaalus spp) and its Application on Food Product Hawani Lubis, Enny; Djubaedah, Endah; Alamsyah, Rizal; Noerdin NK, Moch
Warta Industri Hasil Pertanian Vol 21, No 02 (2004)
Publisher : Balai Besar Industri Agro

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Abstract

The study was aimed at investigating the method of glucomannan extraction from iles-iles and its use application as konyaku. The extraction can be done through mechanical and chemical process. iles-iles were canned and sliced into small chips with  mm thickness. natrium sulfite of 1000 ppm was added during 15 minutes and continuted by soaking them with CaCO3 (2,5%, 5%, and 7,5). The chips was then sun dried for 25-30 hours and continued with oven drying on 60 C temperature and 16 hours. the chips were ground to produce iles-iles flour. Glucomannan flour was them separated from iles-iles flour by chemical separation process using sieve where the lighter one will pass through the sieve, while the mannan will remain on the sieve. A blower was also used to separate glucomannan from calcium oxalate and the remaining cll wallof iles-iles. The chemical separation of glucomannan flour from iles-iles was conducted by water extraction at 55 C. The ethanol of 95% was added to the extract to obtain mannan layer which then was oven dried.
Co-Authors Alamsyah, Rizal Djubaedah, Endah Hawani Lubis, Enny