Penurunan Sianida dalam Umbi Gadung dengan Proses Leaching yang Bekerja Batch

Retnowati, D.S. and Kumoro, A.C. (2012) Penurunan Sianida dalam Umbi Gadung dengan Proses Leaching yang Bekerja Batch. Prosiding Seminar Nasional Teknik Kimia “Kejuangan” 2012 Pengembangan Teknologi Kimia untuk Pengolahan Sumber Daya Alam Indonesia . ISSN 1693-4393

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Abstract

Yam is a tuber plant usually grown in tropical area. The starch contained is potential to be developed as food material like flour as a substitute for wheat in bread making. Although yam tubers were found to have high amount protein and amino acid, they also contained some antinutritional components like cyanogen substances, which can be toxic for human. Cyanogens substances were reduced by batch leaching process which used water as a leaching agent. Yam tuber was sliced into small chips and placed inside the leaching column. Later, 3 L per minute water was flown to the heap of yam chips. The changes of cyanogens content in the tuber chips were analyzed and, presented as HCN equivalent in mg per kg fresh sample every 0.5 hour. After the process, the cyanide content in the yam tuber decreased to an average of 24 ppm at solvent-to-solid ratio from 15 to 40 l/kg and leaching time 2.5 hours.

Item Type:Article
Uncontrolled Keywords:Yam tuber, Dioscorea hispida Dennst, cyanide, leaching, batch
Subjects:S Agriculture > S Agriculture (General)
T Technology > TP Chemical technology
Q Science > QD Chemistry
Divisions:Faculty of Engineering > Department of Chemical Engineering
Faculty of Engineering > Department of Chemical Engineering
ID Code:35075
Deposited By:Dr. Andri Kumoro
Deposited On:24 Apr 2012 10:12
Last Modified:16 Nov 2012 22:33

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