東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Supercritical fluid extraction of qu...

Martino, Karina Gorostiaga.

Linked to FindBook

Google Book

Amazon

博客來

Supercritical fluid extraction of quercetin from onion skins.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Supercritical fluid extraction of quercetin from onion skins./
Author:	Martino, Karina Gorostiaga.
Description:	87 p.
Notes:	Source: Masters Abstracts International, Volume: 42-01, page: 0134.
Contained By:	Masters Abstracts International42-01.
Subject:	Agriculture, Food Science and Technology. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1414670
ISBN:	0496194598

Supercritical fluid extraction of quercetin from onion skins.
Martino, Karina Gorostiaga.

Supercritical fluid extraction of quercetin from onion skins. - 87 p.

Source: Masters Abstracts International, Volume: 42-01, page: 0134.

Thesis (M.S.)--Michigan State University, 2003.

Supercritical fluid extraction with ethanol-modified carbon dioxide of quercetin from onion skins (red and yellow varieties) was studied. Static and dynamic modes were investigated as extraction methods, with the static mode yielding the highest amount of quercetin recovered. The total amount of 0.024 g of quercetin per kg of onion skin was obtained for the red variety, and 0.020 g per kg for the yellow variety, at 5700 psi, 40°C, an average of 7.6% (molar concentration) of ethanol, and in an extraction period of 2.5 h.

ISBN: 0496194598Subjects--Topical Terms:

1017813
Agriculture, Food Science and Technology.

Supercritical fluid extraction of quercetin from onion skins.
LDR:01991nmm 2200313 4500 001 1836865
005 20050315121053.5
008 130614s2003 eng d
020 $a 0496194598
035 $a (UnM)AAI1414670
035 $a AAI1414670
040 $a UnM $c UnM
100 1 $a Martino, Karina Gorostiaga. $3 1925330
245 1 0 $a Supercritical fluid extraction of quercetin from onion skins.
300 $a 87 p.
500 $a Source: Masters Abstracts International, Volume: 42-01, page: 0134.
500 $a Adviser: Daniel Guyer.
502 $a Thesis (M.S.)--Michigan State University, 2003.
520 $a Supercritical fluid extraction with ethanol-modified carbon dioxide of quercetin from onion skins (red and yellow varieties) was studied. Static and dynamic modes were investigated as extraction methods, with the static mode yielding the highest amount of quercetin recovered. The total amount of 0.024 g of quercetin per kg of onion skin was obtained for the red variety, and 0.020 g per kg for the yellow variety, at 5700 psi, 40°C, an average of 7.6% (molar concentration) of ethanol, and in an extraction period of 2.5 h.
520 $a The extraction of pure quercetin from spiked diatomaceous earth was also investigated, extraction conditions were the same as for the onion skins. A maximum of 0.036 g of quercetin per kg of matrix was extracted.
520 $a The modifier was found to have an important influence on quercetin recovery. The greater the amount of ethanol collected in the trap, the greater the amount of quercetin recovered. This trend was found for both varieties and for the pure quercetin.
520 $a Identification and quantification analysis were conducted in a High Performance Liquid Chromatography system.
590 $a School code: 0128.
650 4 $a Agriculture, Food Science and Technology. $3 1017813
650 4 $a Engineering, Chemical. $3 1018531
690 $a 0359
690 $a 0542
710 2 0 $a Michigan State University. $3 676168
773 0 $t Masters Abstracts International $g 42-01.
790 1 0 $a Guyer, Daniel, $e advisor
790 $a 0128
791 $a M.S.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1414670