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Purple
Sweet Potato Color（Deodorized)
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Purple Sweet Potato Color, a
pure natural and water soluble food color
produced by our company, is extracted from
purple root tuber of edible purple sweet
potato (Impomoea batatas ) planted locally.
The process is checking, washing, slicing,
extracting, filtrating, purifying,
concentrating, sterilizing（purple
sweet potato color liquid）,
spraying & drying（purple
sweet potato color powder）.
The main ingredient is cyanidin acyl
glucoside & peonidin acyl glucoside. |
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·Appearance |
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Purple sweet potato color powder is red to
purple red, liquid is brown purple, both has
the characteristic odor of sweet potato. It
can be dissolved in water & alcohol,
propylene glycol solution easily, but not in
oil. The color of water solution changes
when PH is different. When PH is between2-6,
the color is red or purple red .The solution
color becomes blue, and is unstable when PH
is above 6. The color of solution can’t fade
under light for a long time, and also has
good resistance to high temperature in an
acidic medium. |
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·Quality
Standard |
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Items
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Enterprise Standard
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Powder
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Liquid
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Color Value E（1%、1cm、PH3.0、530±3nm）
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30～80
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10～30
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Loss on Drying
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% Less than
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10
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——
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Ash
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% Less than
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4
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2
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PH
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2～4
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2～4
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Lead（as
Pb）
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mg/kg Less than
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5
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3
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Arsenic（as
As）
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mg/kg Less than
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2
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1
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Total Plate Count
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cfu/g less than
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1,000
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1,000
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Pathogenic Bacteria
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Negative
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Negative
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·Applications |
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Purple sweet potato color
can be widely used in
wine, beverage, fruit
sauce, candy, cake. |
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·Usage
Reference |
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Beverages：0.01～0.1%，candy：0.05～0.2%，cake：0.01～0.1% |
| ·Legal
registered number |
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NO:163 EEC NO： E-163 KFDA NO：Natural
Additives,142 Japanese NO： Natural
Additives,434 FDA NO： 21CFR,
73.260 |
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·Package |
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Powder
is packed with corrugated
box, carton, or plastic drum
with inner double plastic
bags, net weight is 10kg or
20kg for each container. Liquid
is packed with plastic drum,
net weight is 20kg.Package
standards are also available
according to consumer‵s demand.
·Storage
Sealed,
avoid light, store in cool
and dry place.
·Shelf
Life
If
the storage condition attains
as mentioned above, Powder
two years from production
date, liquid is six months（unopened）.
Once opened, should seal up
again and use within six months（powder）or
one month（liquid）.
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