Processing of cauliflower leaf waste for poultry and animal feed

Abstract

1967) with the important ions being mje 30, 42, a relatively large parent ion and peak due t o a-cleavage of the alkyl side chain, with subsequent loss of NOH, as well as a peak a t P-17 due t o the loss of the hydroxyl radical. An important pathway can be described in the following scheme for the mje 42, except in the case of dimethylnitrosamine, which bypasses the a-cleavage step.The phenyl-substituted nitrosamines all have a n appreciable parent peak and a strong P-30 peak. The benzyl-substituted nitrosamines have a strong parent peak and a strong mje 91 peak, which in some cases is the base peak of the spectrum. The mje 91 is analogous t o the splitting of the bond / 3 t o the phenyl ring, as described by Grubb and Meyerson (1963).Currently, a more specific and detailed study is in progress utilizing both high-resolution mass spectrum and the metastable spectrum of each compound. This will allow us to more fully explain the fragmentations that occur.The determination of N-nitrosamines in food products and other natural substances is complicated by the presence of large numbers of interfering compounds. Therefore, adequate isolation and cleanup procedures are necessary t o permit sampling of the nitrosamines so that the spectra described in this paper can be utilized.

Processing of fresh artichoke trimmings for use in animal feeds

“…Fresh artichoke trimmings produced at the packing shed are an example of a waste product which may be converted Western Regional Research Laboratory, Agricultural Research Service, U.S. Department of Agriculture, Berkeley, California 94710. to a useful animal feed. Previous experience in the processing and dehydration of fresh alfalfa (Spencer et al, 1971;Livingston et al, 1968), turf grass clippings (Livingston et al, 1971c), cauliflower (Livingston et al, 1972), and pimento (Livingston et al, 1974) " Chopped in silage chopper prior to pressing or dehydration. 6 Ground in hammer mill prior to pressing or dehydration.…”