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All Journal Jurnal Teknologi Pangan dan Gizi
Andjar Sardjimah, Siti Surdijati Lanni Wijaya
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Computer Science & IT

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Identifikasi Dan Penetapan Kadar Zat Warna Merah Dalam Dawet Secara KLT-Densitometri Lanni Wijaya, Siti Surdijati, Andjar Sardjimah,
Jurnal Teknologi Pangan dan Gizi Vol 2, No 1 (2001)
Publisher : Widya Mandala Surabaya Catholic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (384.442 KB) | DOI: 10.33508/jtpg.v2i1.140

Abstract

Red colorants are often used for coloring “dawet” drinks sold along “X” street in Surabaya. The red colorants are possibly those additive coloring agents not permitted for foods or those permitted but the contents exceeded that stated by the Indonesian Minister of Health Regulation No. 722/Menkes/Per/IX/1988/on Food Additives. In the qualitative and quantative tests using TLC-Densitometry with stationary phase : silica Gel GF254 , mobile phase : isopropanol : ammonia – 4 : 1 and selected maximum wavelength 553 nm, it was found that be red colorant used was Rhodamin B, that was not permitted for foods and the contents found were 0.011 % to 0.016 %.
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