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Onion Extract / Allium Cepae Extract / Spiraeoside

Posted at: Offers to Sell and Export | Posted on: Tue 12 Oct, 2010 8:57 am | Product Category: Spices or extracts [3400]
 
onion extract allium cepae spiraeoside
Products Photos CatalogOnion Extract Allium Photos Catalog



Allium Cepae 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.

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 Contact:

gracekb photo
Contact Name: Grace Lee
Company Name: Kingherbs Ltd
Email: Email
Tel: 86 898 36320217
Fax: 86 898 36320270
Street Address: 17b, Blding 8,
Olympic Garden, Mid. Haixiu Rd,
Haikou 570100, Hainan, China
Website: http://www.kingherbs.com.cn
Member name: gracekb
Country: China-CN China
Member Since: 07 October 2010
Total Leads: 59 gracekb Import Export Business Leads
Business focus: Polygonum Cuspidatum Extract Resveratrol, Polydatin, Emodin, Zerumbone, Reishi Spore Oil, Sea Buckthorn Seed Oil, Rosemary Extract, Carnosic Acid
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Product Category: Spices or extracts [3400]
 
 
 

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