Contents J A N U A R Y / F E B R U A R Y 1968

P E S T I C I D E S

6 Absorption and Metabolism of Antimycin Administered with a Rat Diet P. Ο. Ritter and F. M. Strong

13 Metabolism of Insecticides. Microsynthesis of 14C-/3-Dihydroheptachîor N. H. Poonawalla and Friedhelm Korte

15 Metabolism of /3-Dihydroheptachlor-14C in Soil and by Microorganisms Ν. H. Poonawalla and Friedhelm Korte

17 Degradation of Monsodium Methanearsonic Acid by Soil Microorganisms D. W. Von Endt, P. C. Kearney, and D. D. Kaufman

21 Adsorption of 3-Aminotriazole by Montmorillonitc / . D. Russell, M. I. Cruz, and J. L. White

25 Enzymic Browning and Free Tyrosine in Potatoes as Affected by Pentachloronitrobenzene / . P. Sweeney and P. A. Simandle

28 Oxidation of Methyl- and Dimethylcarbamate Insecticide Chemicals by Microsomal Enzymes and Anticholinesterase Activity of Metabolites

E. S. Oonnithan and J. E. Casida

45 Metabolic Studies with 0 ,0-Die thyl 0-(3,5,6-Trichloro-2-pyridyl) Phosphorothioate (Dursban) Insecticide in a Lactating Cow

W. H. Gutenmann, L. E. St. John, Jr., and D. J. Lisk

48 Determination of Hydrolytic Metabolites of Organophosphorus Insecticides in Cow Urine Using an Improved Thermionic Detector

L. E. St. John, Jr., and D. J. Lisk

50 Improved Method for Determination of Sulfonamides in Milk and Tissues F. Tishler, J. L. Sutter, J. N. Bathish, and H. E. Hagtnan

54 Determination of Terbacil Residues Using Microcoulometric Gas Chromatography H. L. Pease

V O L . 1 6 , N O . 1 © C O P Y R I G H T 1 9 6 8 B Y T H E A M E R I C A N C H E M I C A L S O C I E T Y

EDITOR: PHILIP K. BATES

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AMERICAN CHEMICAL SOCIETY PUBLICATIONS

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2 J. AGR. F O O D C H E M .

Contents Continued

F L A V O R S

108 Dihydrochalcones. Synthesis of Potential Sweetening Agents Leroy Krbechek, George Inglett, Melville Holik, Basil Dowling, Richard Wagner, and Richard Riter

113 Some Minor Sesquiterpene Hydrocarbons of Black Pepper C. J. Muller, R. K. Creveling, and W. G. Jennings

P L A N T C O M P O U N D S

118 Spectrophotometry Determination of Limonin in Orange Juice K. W. Wilson and C. A. Crutchfield

125 Physicochemical Properties of Brown Rice from Oryza Species and Hybrids C. C. Ignacio and B. O. Juliano

128 Immunochemical Study of Soybean Proteins N. Catsimpoolas and E. W. Meyer

132 Sinapine and Related Esters in Seed Meal of Crambe abyssinica F. L. Austin and I. A. Wolf

F E R T I L I Z E R S

136 Inhibition of Thermal Decomposition of Ammonium Nitrate G. H. Madany and George Burnet

C O M M U N I C A T I O N S

142 Thin-Layer Chromatography of Bromacil Residues in Soils D. J. Hamilton

143 Chromatographic Determination of 4-Trinuoromethyl-2,4'-dinitrodiphenyl Ether Residues in Soybeans

/ . P. Walter, M. L. Ker chers id, and M. G. Merkle

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4 J. A G R . F O O D CHEM.