Detail of "18829-55-5"

Reference

Volatile food attractants for Oryzaephilus surinamensis (L

Volatile food attractants for Oryzaephilus surinamensis (L.) from oats. Mikolajczak, K. L.; Zilkowski, B. W.; Smith, C. R., Jr.; Burkholder, W. E. (North. Reg. Res. Cent., Agric. Res. Serv., Peoria, IL 61604, USA). 123-38-6 and 111-71-7 which are cas registry numbers are also used here. J. Chem. Ecol., 10(2), 301-9 (English) 1984. CODEN: JCECD8. ISSN: 0098-0331. DOCUMENT TYPE: Journal CA Section: 5 (Agrochemical Bioregulators) The sawtoothed grain beetle, O. surinamensis (Coleoptera: Cucujidae), is attracted to certain volatile components that occur in whole and rolled oats as detd. by a lab. pitfall chamber bioassay. More than 100 components were detected in the attractive carbonyl-contg. fractions; 14 of these, making up 60% of the total, were identified and bioassayed. Although hexanal [66-25-1], heptanal [111-71-7], octanal [124-13-0], (E)-2-heptenal [18829-55-5], and 2-furaldehyde [98-01-1], at 1-100 mg, were all significantly attractive, only 1/10 to 1/100 as much (E)-2-nonenal [18829-56-6] or (E,E)-2,4-nonadienal [5910-87-2] was necessary to produce comparable insect response. In addn., propanal [123-38-6] and formaldehyde [50-00-0] were attractive. .

Volatile carbonyl compounds from the reaction of barley isomerase with linoleic acid hydroperoxides

Volatile carbonyl compounds from the reaction of barley isomerase with linoleic acid hydroperoxides. Their development from the 9- or the 13-hydroperoxide isomers. Heimann, Werner; Timm, Ulla (Inst. Lebensmittelchem., Univ. Karlsruhe, Karlsruhe, Ger.). Z. Lebensm.-Unters. Forsch., 165(1), 12-14 (German) 1977. CODEN: ZLUFAR. DOCUMENT TYPE: Journal CA Section: 16 (Fermentations) Hydroperoxide isomerase [37318-50-6] from barley was incubated with the linoleic acid hydroperoxides 13-hydroperoxy-9-cis,11-trans-octadecandienoic acid (13-LHPO) [23017-93-8] or 9-hydroperoxy-10-trans,12-cis-octadecadienoic acid (9-LHPO) [5502-91-0]; the volatile reaction products were isolated, concd., and investigated by means of gas and radio-gas chromatog. 13-LHPO was found to be precursor of hexanal [66-25-1] and 2-trans-octenal [2548-87-0]. The origin of 2-trans-heptenal [18829-55-5] could not be clarified; it occurred neither in the expts. with 9-LHPO nor with 13-LHPO.