Trade Lead Description:
China Allium Cepa Extract
Total polyphenol and main flavonoid antioxidants in different onion (Allium cepa L.) varieties.
In onion, spiraeoside (quercetin-4′-O-β-D-glucoside), rutin and quercetin and 3 other not identified compounds were found as the major constituents. Significant cultivar differences were found. The most abundant compound was spiraeoside (32 234 mg/kg DM in red onion, 23 283 mg/kg DM in yellow onion and 265 mg/kg DM in white onion).
During storage, an increase in flavonoids could be observed, especially at a laboratory temperature compared to storage at a lower temperature.
Spiraeoside:
Synonym (s): Quercetin 4'-glucoside, Spiraein, Spiraeoside, Spireoside
Chapman Hall Number: KWD91-S
CAS Registry Number: 20229-56-5
Type of Compound Code (s): VK5250
Molecular Formula: C21H20O12
Molecular Weight: 464.382
Accurate Mass: 464.09548
Percentage Composition: C 54.32%; H 4.34%; O 41.34%
Biological Source: Isol. from Spiraea ulmaria and other plant spp.
| Type of Offer: |
Offer to Sell |
| Quantity: |
1kg |
| Packaging: |
25kg /drum with double see-through plastic or according to customer requirement. |
| Price / Incoterms Conditions: |
FOB |
Posted from China - Hunan on 2 August, 2012
|
|
Join now! Register for FREE 
Trade Leads Directory -> All Trade Leads -> Vegetables -> Plant Extracts -> Kingherbs Offers China Allium Cepa Extract
How to 
