Gardenia Yellow
Gardenia Yellow is extracted from the gradenia fruit of the madder family. The pigment mainly consists of crocin and crocetin.
Properties: Gardenia Yellow, slight bitter, is a brown powder easily dissolvable in water and alcohol, but not in fat solvent. In water solvent, its bright yellow color does not vary according to PH. Resistance to light and heat is high in neutral and faintly alkaline mediums. It has a strong ability to color proteins and carbohydrates. It is applicable to the human-body and has been formulated to a national standard (standard number GB7912-87).
Quality standard:
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ITEMS
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INDICES
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INDICES (GB7912-87)
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Appearance
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Powder
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Liquid
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powder
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Liquad
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Yellow-Brown
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Brown
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Color Value E1%1cm442nm
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30— 550
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30—300
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24
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15
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Drying Weightlessness ≤
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7%
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—
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7%
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50%
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Ash ≤
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4%
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2%
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9%
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5%
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Heavy Metal ppm≤
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10
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10
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10
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10
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Lead ppm≤
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3
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2
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3
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2
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Arsenic ppm≤
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2
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1
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2
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1
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Microbiologic Quality
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Conforms to Standards of Food Additives
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Technological Process:
Raw Material → Crushing → Immersion in water → Filtering → Purification → Filtering → Concentration in Vacuum → Killing of Bacteria → Drying → Powder
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Liquid
Usages: Applicable to food, beverages.
Storage: Prevent from air, light and heat, Store in cool condition.
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