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Product Name: |
Allium Cepae Extract
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Specifications |
natural extract |
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Total polyphenol and main flavonoid antioxidants in different onion (Allium cepa L.) varieties. In onion, spiraeoside (quercetin-4¡ä-O-¦Â-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 co***red to storage at a lower temperature. Spiraeoside,Synonym(s): Quercetin 4'-glucoside. Spiraein. Spiraeoside. Spireoside Cha***n 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. Physical Description: Yellow needles (MeOH aq.) Melting Point: Mp 240-241 (209-210). We use the red onion for extraction, which contains the highest spiraeoside. |
Company: |
Kingherbs Inc
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Contact: |
Ms. Grace Lee |
Address: |
2-603, Building 1, Jinniu Xincun |
Postcode: |
570314 |
Tel: |
86 898 31578189 |
Fax: |
86 898 31578177 |
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