Characterization of malathion residues in dairy goats and poultry

被引:4
作者
Cannon, JM [1 ]
Reddy, V [1 ]
Murrill, E [1 ]
Butz, R [1 ]
机构
[1] JSC INC,ARLINGTON,VA 22209
关键词
malathion; tissue residue study; reincorporation; metabolism;
D O I
10.1021/jf9602941
中图分类号
S [农业科学];
学科分类号
09 ;
摘要
The chemical nature and magnitude of [C-14]malathion residues in the milk, eggs (whites and yolks), fat, liver, kidney, and muscle tissues in dairy goats and laying hens were examined after repeated oral exposure. The level and duration of the dose given to goats were equivalent to 86 ppm on feed for 5 days. Chickens received the equivalent of 28 ppm on feed for 4 days. Radioactive residues were characterized and identified using solvent extraction and chromatography. The parent chemical was not detectable, and immediate metabolites of malathion were not present in any tissues except traces of the mono- and dicarboxylic acid metabolites observed in goat kidney. This observation was consistent with urinary excretion as the major elimination pathway of malathion and immediate metabolites in poultry, laboratory animals, and humans. Extensive degradation and metabolism resulted in the reincorporation of the radiolabel into normal biogenic chemicals in all investigated samples. The products were typical of those derived from the tricarboxylic acid cycle. The products included pyruvate, lactate, lactose, oleic acid, stearic acid, and glycerol. Reincorporation of radiolabel into protein was also demonstrated by the isolation and hydrolysis of casein from milk. It was concluded that ingested malathion was converted to acetate or other volatile fatty acids, metabolized to acetyl-CoA, and then incorporated into the carbon pool.
引用
收藏
页码:3365 / 3373
页数:9
相关论文
共 10 条
[1]   MEAT AND MILK RESIDUES FROM LIVESTOCK SPRAYS [J].
CLABORN, HV ;
BUSHLAND, RC ;
MANN, HD ;
IVEY, MC ;
RADELEFF, RD .
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, 1960, 8 (06) :439-442
[2]  
CLABORN HV, 1960, ARS3363 USDA
[3]  
DARY CC, 1994, BIOMARKERS HUMAN EXP
[4]   BIOLOGICAL FATE OF MALATHION-P-32 IN GALLUS-DOMESTICUS (DESI POULTRY BIRDS) [J].
GUPTA, PK ;
PAUL, BS .
TOXICOLOGY, 1977, 7 (02) :169-177
[5]  
IARC, 1983, IARC MON EV CARC RIS, V30
[6]   FATE OF P32-LABELED MALATHION IN THE LAYING HEN, WHITE MOUSE, AND AMERICAN COCKROACH [J].
MARCH, RB ;
FUKUTO, TR ;
METCALF, RL ;
MAXON, MG .
JOURNAL OF ECONOMIC ENTOMOLOGY, 1956, 49 (02) :185-195
[7]   FATE OF P32-LABELED MALATHION SPRAYED ON JERSEY HEIFER CALVES [J].
MARCH, RB ;
METCALF, RL ;
FUKUTO, TR ;
GUNTHER, FA .
JOURNAL OF ECONOMIC ENTOMOLOGY, 1956, 49 (05) :679-682
[8]  
Mulla M.S., 1981, RESIDUE REV, V81
[9]   THE EFFECT OF IMPURITIES ON THE TOXICOKINETICS OF MALATHION IN RATS [J].
RYAN, DL ;
FUKUTO, TR .
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY, 1985, 23 (03) :413-424
[10]   THE EFFECT OF ISOMALATHION AND O,S,S-TRIMETHYL PHOSPHORODITHIOATE ON THE INVIVO METABOLISM OF MALATHION IN RATS [J].
RYAN, DL ;
FUKUTO, TR .
PESTICIDE BIOCHEMISTRY AND PHYSIOLOGY, 1984, 21 (03) :349-357