Yellow gardenia is extracted from the Rubiaceae gardenia fruit. Crocin and crocetin are the main parts of the pigment.
Features: Gardenia yellow, a little bitter, is brown powder dissolved in water and alcohol, but insoluble in fat. In the solution, the yellow color does not vary with PH. The good resistance thermal and light in alkaline media. It is capable to stain proteins and carbohydrates. It is applicable to the human body with the national standard GB7912-87.
Quality standard:
terms
indexes Indices(GB7912-87)
appearance powder liquid powder liquid
yellow-brown
color value E1% 1cm442nm
30-550 30-300 24 15
loss on drying =
7% - 7% 50%
ash =
4% 2% 9% 5%
Metal heavy ppm=
10 10 10 10
lead 3 2 3 2 ppm=
Arsenic ppm=
2 1 2 1
microbique quality conformed to the standards of food adittifs
process technology:
raw material ? crash ? Immersion in Water ? Filtration ? Purification ? Filtration ? Concentration ? Elimination of bacteria vacuum ? drying ? powder
?
liquid
uses: Applicable for food and drinks.
Storage: Forbidden from contact with the air, the light in a fresh condition.
