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Please use this identifier to cite or link to this item: http://repository.uksw.edu/handle/123456789/4700
Title: Pengaruh Intensitas Cahaya Terhadap Degradasi Warna Agar- Agar yang Diwarnai Sari Umbi Bit Merah (Beta Vulgaris L. Var. Rubra L.)
Authors: Lestario, Lydia Ninan
Gunawan, Noviana
Martono, Yohanes
Keywords: beetroot;light intensity;color degradation rate
Issue Date: Dec-2013
Publisher: Fakultas Pertanian dan Bisnis Universitas Kristen Satya Wacana Salatiga
Abstract: The aims of this research were to determine the concentration of beetroot juice in jelly which panelists like best; to determine the color degradation rate constant in jelly colored with beetroot juice caused by sunlight and fluorescent light; and color degradation rate constant of jelly colored with synthetic colorant. The organoleptic test used 2,5percent; 5percent; t,5percent; 10percent; and 12,5percent beetroot juice and permitted synthetic colorant for food. The light intensity to test the beetroot color stability in jelly were 879,06 lux, 1.688,54 lux, 2.342,2 lux and 6.752,2 lux. The results showed that the concentration of beetroot juice which panelists like best was 5percent.; The color degradation rate constant of jelly colored by 5 percent beet root juice on intensity 879,06 lux was 0,0468 hour-1; 1.688,54 lux was 0,0565 hour -1; 2.342,2 lux was 0,0653 hour-1;6.752,2 lux was 0,0887 hour-1. The higher the light intensity, the higher the degradation constant rate
Description: Agric : Jurnal Ilmu Pertanian. Vol. 25, No. 1, Desember 2013, p. 42-50
URI: http://repository.uksw.edu/handle/123456789/4700
ISSN: 0854-9028
Appears in Collections:Agric 2013 Vol. 25 No. 1 Desember



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