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ITS » Paper and Presentation » Kimia
Posted by fandikaaqsa@its.ac.id at 26/04/2016 14:14:21  •  1077 Views


PENGARUH WAKTU PENGGILINGAN TERHADAP KADAR ZAT BESI DALAM AMPAS SARI KEDELAI MENGGUNAKAN SPEKTROFOTOMETER UV-Vis

Author :
HARISMAN, FERRY RIYANTO ( 1410100026 )




ABSTRAK

Telah dilakukan penelitian mengenai pengaruh waktu penggilingan dalam pembuatan sari kedelai terhadap kadar total zat besi yang tertinggal dalam ampas sari kedelai menggunakan spektrofotometer UV-Vis. Pengukuran dilakukan dengan mengomplekskan besi dengan 110-fenantrolin membentuk besiII-fenantrolin. Panjang gelombang maksimum yang didapat sebesar 511 nm. Penelitian dilakukan dengan mengukur kadar besi dalam kedelai tanpa penggilingan dengan label GM 1 dan 4 kedelai dengan variasi waktu penggilingan selama 15 detik 30 detik 45 detik dan 60 detik dengan label GM 2 GM 3 GM4 GM5. Hasil yang didapat yakni GM1 mengandung besi sebanyak 7082 gram GM2 sebanyak 6832 gram GM3 sebanyak 6120 gram GM4 sebanyak 4867 gram dan GM5 sebanyak 4444 gram. Hasil didapat menunjukkan adanya pengaruh yang linier antara waktu penggilingan dan kadar total zat besi dalam ampas sari kedelai.


ABSTRACT

A research about correlation between milling time and iron concentration in soya milk s residue using spectrophotometer UV-Vis has been done. The research based on reaction between iron and 110-phenantroline as a complexing agent to form ironII-phenantroline that have maximum wavelength at 511 nm. This research was done by measuring total iron in soya bean without milling labeled as GM 1 and soya milk s residue labeled as GM 2 GM 3 GM 4 GM 5 which have been milled for 15 sec 30 sec 45 sec and 60 sec. The result is GM 1 contained 7082 grams iron GM 2 contained 6832 grams iron GM 3 contained 6120 grams iron GM 4 contained 4867 grams iron and GM 5 contained 4444 grams iron. From the result we conclude that there is a linearity between milling time and iron concentration left in soya milk s residue.



Keywords-
 
Subject:  Kimia fisis
Contributor
  1. Drs. R. Djarot Sugiarso K. S., MS
Date Create: 26/04/2016
Type: Text
Format: PDF
Language: Indonesian
Identifier: ITS-paper-14021160008834
Collection ID: 14021160008834
Call Number: RSKi 543.55 Har p


Source
Paper and Presentation of Chemistry, RSKi 543.55 Har p, 2014

Coverage
ITS Community

Rights
Copyright @2016 by ITS Library. This publication is protected by copyright and per obtained from the ITS Library prior to any prohibited reproduction, storage in a re transmission in any form or by any means, electronic, mechanical, photocopying, reco For information regarding permission(s), write to ITS Library




[ Download - Open Access ]

  1.  ITS-paper-41350-1410100026-paper.pdf - 330 KB
  2.  ITS-paper-41350-1410100026-presentation.pdf - 2127 KB




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