Short communication: Rearrangement of rumenic acid in ruminant fats: A marker of thermal treatment

被引：13

作者：

Destaillats, F

Japiot, C

Chouinard, PY

Arul, J

Angers, P ^{[1
]}

机构：

[1] Univ Laval, Dept Food Sci & Nutr, Ste Foy, PQ G1K 7P4, Canada

[2] Univ Laval, Dairy Res Ctr STELA, Ste Foy, PQ G1K 7P4, Canada

[3] Univ Laval, Dept Anim Sci, Ste Foy, PQ G1K 7P4, Canada

来源：

JOURNAL OF DAIRY SCIENCE | 2005年 / 88卷 / 05期

基金：

加拿大自然科学与工程研究理事会;

关键词：

conjugated linoleic acid; butterfat; rumenic acid; thermal reaction;

D O I：

10.3168/jds.S0022-0302(05)72834-4

中图分类号：

S8 [畜牧、动物医学、狩猎、蚕、蜂];

学科分类号：

0905 ;

摘要：

Rumenic (cis-9, trans-11 18: 2) acid is the main conjugated linoleic acid (CLA) isomer in milk and other ruminant fats. Anhydrous regular and high-CLA butterfats were heated at 200 degrees C for 2, 4, and 6 h under atmospheric conditions. [1,5] Sigmatropic isomerization of rumenic acid occurred, resulting in the formation of trans-8, cis-10 18: 2 acid, as determined by mass spectrometry of its 4,4-dimethyloxazoline derivative. Rate of isomerization was monitored by gas-liquid chromatography, using a 120-m capillary column coated with 70% equivalent cyanoalkylpolysiloxane polymer, and reaction was of first order. Furthermore, [ 1,5] sigmatropic rearrangement product analysis can be used as an indicator of heat treatment of natural fats and oils containing CLA.

引用

页码：1631 / 1635

页数：5

共 22 条

[1] Technical note: Production of butter with enhanced conjugated linoleic acid for use in biomedical studies with animal models
Bauman, DE
Barbano, DM
Dwyer, DA
Griinari, JM
[J]. JOURNAL OF DAIRY SCIENCE, 2000, 83 (11) : 2422 - 2425
[2] Christie W. W., 2001, INFORM, V152, P147
[3] Thermally induced formation of conjugated isomers of linoleic acid
Destaillats, F
Angers, P
[J]. EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY, 2005, 107 (03) : 167 - 172
[4] Directed sequential synthesis of conjugated linoleic acid isomers from Δ7,9 to Δ12,14
Destaillats, F
Angers, P
[J]. EUROPEAN JOURNAL OF LIPID SCIENCE AND TECHNOLOGY, 2003, 105 (01) : 3 - 8
[5] Saturated and unsaturated anteiso-C19 acids in the seed lipids from Hesperopeuce mertensiana (Pinaceae)
Destaillats, F
Wolff, RL
Angers, P
[J]. LIPIDS, 2002, 37 (03) : 325 - 328
[6] Preparation, separation, and confirmation of the eight geometrical cis/trans conjugated linoleic acid isomers 8,10-through 11,13-18:2
Eulitz, K
Yurawecz, MP
Sehat, N
Fritsche, J
Roach, JAG
Mossoba, MM
Kramer, JKG
Adlof, RO
Ku, Y
[J]. LIPIDS, 1999, 34 (08) : 873 - 877
[7] LOCATION OF DOUBLE-BONDS IN POLYUNSATURATED FATTY-ACIDS BY GAS-CHROMATOGRAPHY MASS-SPECTROMETRY AFTER 4,4-DIMETHYLOXAZOLINE DERIVATIZATION
FAY, L
RICHLI, U
[J]. JOURNAL OF CHROMATOGRAPHY, 1991, 541 (1-2): : 89 - 98
[8] FOLCH J, 1957, J BIOL CHEM, V226, P497
[9] ONE-STEP CONVERSION OF FATTY-ACIDS INTO THEIR 2-ALKENYL-4,4-DIMETHYLOXAZOLINE DERIVATIVES DIRECTLY FROM TOTAL LIPIDS
GARRIDO, JL
MEDINA, I
[J]. JOURNAL OF CHROMATOGRAPHY A, 1994, 673 (01) : 101 - 105
[10] Conjugated linoleic acid is synthesized endogenously in lactating dairy cows by Δ9-desaturase
Griinari, JM
Corl, BA
Lacy, SH
Chouinard, PY
Nurmela, KVV
Bauman, DE
[J]. JOURNAL OF NUTRITION, 2000, 130 (09) : 2285 - 2291

← 1 2 3 →