An absolute quantification method for the determination of dehydroacetic acid in processed foods using quantitative (1)H NMR was developed and validated. The level of dehydroacetic acid was determined using the proton signals of dehydroacetic acid referenced to 1,4-bis (trimethylsilyl) benzene-d4 after simple solvent extraction from processed foods. All the recoveries from three processed foods...

I. The Effect of Sodium Fluoroacetate on the Contractility and Metabolism of Intestinal Smooth Muscle. Robert F. Furchgott 1 II. Pharmacological Properties of some Neostigmine Analogs. Lowell 0. Randall and G. Lehmann 16 III. Changes in Renal Function Produced by Morphine in Normal Dogs and dogs with Diabetes Insipidus. Carroll A. Handley and Allen D. Keller.. 33 IV. The Levator Ani Muscle of t...

background: aflatoxins (afs) are the most prevalent carcinogenic mycotoxins, produced mainly by aspergillus flavus and a. parasiticus. the general purpose of the present study was to use dehydroacetic acid (dha) and ozonated water (ow) to control a. flavus growth and accumulation of aflatoxin b1 (afb1) in iranian pistachios. methods: three treatment pistachio groups were separately immersed in ...

Dehydroacetic acid reacts with acetic anhydride in the presence of perchloric acid to give a salt which upon careful neutralization affords a fused bis-gamma-pyrone. The bis-gamma-pyrone forms stable metal complexes with Li, Mg, Cu(II), Ni(II), Zn, Fe(II), Co(II) and Ba perchlorates whose crystal structures reveal that the ligand possesses significant bispyrylium character while the metal is co...