Effect of Temperature and pH on the Generation of Flavor Volatiles in Extrusion Cooking of Wheat Flour was written by Bredie, Wender L. P.;Mottram, Donald S.;Guy, Robin C. E.. And the article was included in Journal of Agricultural and Food Chemistry in 2002.Quality Control of 2-Methyl-4,5-dihydrothiazole This article mentions the following:
Extrusion temperature (120, 135, and 150掳) and quantity of added sodium hydroxide (0, 3, and 6 g/kg feedstock) were used as variables to study flavor generation in extrusion cooking of wheat flour. In total, 127 volatile components were identified in the extrudates, of which 51 contained sulfur. The levels of pyrroles, thiophenes, thiophenones, thiapyrans, and thiazolines increased at higher extrusion temperatures, whereas furans and aldehydes decreased. The addition of sodium hydroxide also affected the formation of volatile compounds However, thiophenes, thiophenones, polythiacycloalkanes, thiazoles, thiazolines, pyrroles, and some pyrazines tended to increase with the more alk. extrusion conditions. Some compounds from lipid-Maillard interactions were identified in the extrudates. Anal. of the volatile components by gas chromatog.-olfactometry showed sulfur- and nitrogen-sulfur-containing heterocycles as possible contributors to the sulfury and rubbery odors observed in extrudates produced at the higher temperature and more alk. conditions. In the experiment, the researchers used many compounds, for example, 2-Methyl-4,5-dihydrothiazole (cas: 2346-00-1Quality Control of 2-Methyl-4,5-dihydrothiazole).
2-Methyl-4,5-dihydrothiazole (cas: 2346-00-1) belongs to thiazole derivatives. Thiazoles in peptides or their ability to bind proteins, DNA and RNA has led to many synthetic studies and new applications.Various laboratory methods exist for the organic synthesis of thiazoles. For example, 2,4-dimethylthiazole is synthesized from thioacetamide and chloroacetone.Quality Control of 2-Methyl-4,5-dihydrothiazole
Referemce:
Thiazole | C3H3NS – PubChem,
Thiazole | chemical compound | Britannica