Influence of heat and refining on formation of CLA isomers in sunflower oil

被引：27

作者：

Juanéda, P ^{[1
]}

de la Pérrière, SB ^{[1
]}

Sébédio, JL ^{[1
]}

Grégoire, S ^{[1
]}

机构：

[1] Inst Natl Rech Agronom, Unite Nutr Lipid, F-21065 Dijon, France

来源：

JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY | 2003年 / 80卷 / 09期

关键词：

CLA; deodorization; heat treatment; isomers; polar compounds; refining; sunflower oil;

D O I：

10.1007/s11746-003-0800-3

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The aims of this study were to determine whether CLA are formed during refining of vegetable oils and to study the level and composition of CLA during heating. The effects of three refining steps (neutralization, bleaching, and deodorization) were analyzed with respect to their effect on CLA content. Two temperatures (180 and 220degreesC) were used for heating; CLA appeared only after deodorization. The level of CLA was positively influenced by temperature. More CLA were present after treatment at 220degreesC than at 180degreesC (1.3 and 0.2% of total FA, respectively). The high temperature modified the relative proportions of the CLA isomers. The main CLA isomers in fresh or heated oils were the trans,trans ones (mainly 9,11 and 10,12 isomers).

引用

页码：937 / 940

页数：4

共 15 条

[1] Changes in conjugated linoleic acid composition within samples obtained from a single source [J].

Adlof, RO ;

Copes, LC ;

Walter, EL .

LIPIDS, 2001, 36 (03) :315-317

[2]

Christie W. W., 2001, INFORM, V152, P147

[3] Saturated and unsaturated anteiso-C19 acids in the seed lipids from Hesperopeuce mertensiana (Pinaceae) [J].

Destaillats, F ;

Wolff, RL ;

Angers, P .

LIPIDS, 2002, 37 (03) :325-328

[4]

Firestone D., 1993, INFORM, V4, P1366

[5]

Fritsche J, 1998, FETT-LIPID, V100, P190, DOI 10.1002/(SICI)1521-4133(199806)100:6<190::AID-LIPI190>3.3.CO

[6]

2-X

[7]

Hénon G, 2001, EUR J LIPID SCI TECH, V103, P467, DOI 10.1002/1438-9312(200107)103:7<467::AID-EJLT467>3.0.CO

[8]

2-I

[9] Conjugated linoleic acid (CLA) isomers in heat-treated vegetable oils [J].

Juanéda, P ;

Cordier, O ;

Grégoire, S ;

Sébédio, JL .

OCL-OLEAGINEUX CORPS GRAS LIPIDES, 2001, 8 (01) :94-97

[10] The biologically active isomers of conjugated linoleic acid [J].

Pariza, MW ;

Park, Y ;

Cook, ME .

PROGRESS IN LIPID RESEARCH, 2001, 40 (04) :283-298

← 1 2 →