The reaction of several primary amines with nitrite was investigated
with regard to the formation of N-nitrosamines. When reacted
in a low moisture system at 160°C with a 1:2 molar ratio of amine to
sodium nitrite, various primary amine hydrochloride salts were found
to give rise to heterocyclic nitrosamines. The...
The effect of HTST pressure blanching processing parameters, as
compared to conventional steam blanching, on enzyme activity,
moisture, drip loss, shear force, sensory attributes and consumer
acceptability of frozen sweet corn were determined. Complete
inactivation of catalase and peroxidase required HTST treatments of
60 psi and 75 psi, respectively. No...
Certain chlorinated insecticides can be identified by electron capture gas-liquid chromatographic (EC-GLC) analysis of the prepared sample before and after treatment with ultraviolet irradiation, Upon U.V. treatment, characteristic degradation products arise from the insecticides investigated. Comparison of the degradation pattern obtained by EC-GLC of unknown and authentic insecticides provides an...
Tree nuts have been implicated in a number of foodborne outbreaks and recalls in recent years linked to enteric pathogens, particularly Salmonella. Therefore, prior to distribution and marketing, it is necessary to understand the biological risks associated with the consumption of tree nuts and to find effective methods to inactivate...
The impact of yeast on the aroma and flavor of Vitis vinifera L. cv. 'Pinot Noir' wine was investigated. Due to the presence of naturally occurring yeast and bacteria on grapes and wine equipment, and the influence these microorganisms have on wine, a means of eliminating microorganisms from grape must...
Dietary protein intake has been observed to influence the induction
of cancer in animals exposed to carcinogens, presumably by affecting the
activities of enzyme systems which metabolize them. One such carcinogen
is aflatoxin B₁ (AFB₁) a mold metabolite and frequent contaminant of
foodstuffs. Variations in the levels of dietary proteins...
Lignocellulosic biomass represents a vast supply of fermentable carbohydrates and functional aromatic compounds. Conversion of lignocellulosics to ethanol and other useful products would be of widespread economical and environmental benefit. Better understanding of the behavior of different lignicellulosic feedstocks in fermentation protocols as well as catalytic activities involved in lignocellulosic...
The reactions between sodium nitrite and the polyamines
spermidine and spermine were investigated. When reacted at 80°C
for 1 hr at pH 3.5 with a 1:3 molar ratio of amine groups to sodium
nitrite, five volatile nitrosamines were identified as products in the
nitrosation of spermidine. 3HC1, and two volatile...