BIOMAT Database Logo BIOMAT Database Logo

[Breakdown of linoeic acid hydroperoxydes. Formation of volatile carbonyl compounds (author's transl)]. 1976

W Grosch

Linoleic acid hydroperoxydes (LOOH) containing 13-hydroperoxyoctadeca-9,11-(75%) and 9-hydroperoxyoctadeca-10,12-dienoic acid (25%) were emulsified at pH 6.5. After addition of hemoglobin, ferrous ions, ferric ions, cysteine or ascorbic acid the emulsions were stored 19 hours at 22 degrees C. The decrease in the diene and peroxyde concentrations and the formation of volatile carbonyl compounds were analysed. Ferrous ions and ascorbic acid were the strongest producers of volatile carbonyl compounds. In the presence of 10(-3) Mol ascorbic acid 6 mumol volatile aldehydes arise from 75 mumol LOOH. Hexanal (70 mol-%) was the main component of the aldehyde fraction. For plant foodstuffs the significance of the reaction of fatty acids hydroperoxydes with ascorbic acid for the formation of flavour substances is discussed.

UI MeSH Term Description Entries
D008041 Linoleic Acids Eighteen-carbon essential fatty acids that contain two double bonds. Acids, Linoleic
D009812 Odorants The volatile portions of chemical substances perceptible by the sense of smell. Odors,Aroma,Fragrance,Scents,Aromas,Fragrances,Odor,Odorant,Scent
D010545 Peroxides A group of compounds that contain a bivalent O-O group, i.e., the oxygen atoms are univalent. They can either be inorganic or organic in nature. Such compounds release atomic (nascent) oxygen readily. Thus they are strong oxidizing agents and fire hazards when in contact with combustible materials, especially under high-temperature conditions. The chief industrial uses of peroxides are as oxidizing agents, bleaching agents, and initiators of polymerization. (From Hawley's Condensed Chemical Dictionary, 11th ed) Peroxide
D005504 Food Analysis Measurement and evaluation of the components of substances to be taken as FOOD. Analysis, Food,Analyses, Food,Food Analyses
D000447 Aldehydes Organic compounds containing a carbonyl group in the form -CHO. Aldehyde

Related Publications

W Grosch
[Enzymatic breakdown of linoleic acid hydroperoxides to volatile carbonyl compounds by isomerase from barley (author's transl)].
September 1977, Zeitschrift fur Lebensmittel-Untersuchung und -Forschung,
W Grosch
[Topochemical demonstration of carbonyl compounds in the thymus (author's transl)].
January 1973, Zeitschrift fur Zellforschung und mikroskopische Anatomie (Vienna, Austria : 1948),
W Grosch
[Microbial breakdown of acid anilide fungicides (author's transl)].
July 1976, Zentralblatt fur Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Erste Abteilung Originale. Reihe B: Hygiene, praventive Medizin,
W Grosch
[About the formation of volatile products during lipoxigenase-linoleic-acid reaction (author's transl)].
June 1975, Zeitschrift fur Lebensmittel-Untersuchung und -Forschung,
W Grosch
[Reaction of trialkylborane. III. Reaction of trialkylborane with carbonyl compounds (author's transl)].
December 1975, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan,
W Grosch
Phosphonic Acid Modified ZnO Nanowire Sensors: Directing Reaction Pathway of Volatile Carbonyl Compounds.
September 2020, ACS applied materials & interfaces,
W Grosch
Preconcentration and analysis of trace volatile carbonyl compounds.
February 2012, Analytical chemistry,
W Grosch
[Fluorescence optical evidence of carbonyl groups with acid hydrazides (author's transl)].
January 1974, Acta histochemica,
W Grosch
[Reactions of 1,2-diaminopyridinium salt with alpha,beta-unsaturated carbonyl compounds (author's transl)].
December 1975, Yakugaku zasshi : Journal of the Pharmaceutical Society of Japan,
W Grosch
Formation of acidic carbonyl compounds by some homofermentative lactic acid bacteria.
May 1961, Applied microbiology,
Copied contents to your clipboard!