To identify the volatile flavor components in mustard paste (MP), compounds seven MPs available on market were isolated and analyzed by headspace solid-phase microextraction combined with gas chromatography–mass spectrometry. A total of 27 constituents found mass spectra retention index compared to data obtained from reference or related literature databases; these included nine esters, three s...

Total reduced sulfurs (TRS) include hydrogen sulfide (H2S), methyl mercaptan (methanethiol, CH3SH), dimethyl sulfide (CH3SCH3) and dimethyl disulfide (CH3S2CH3) and are referred to as noncondensible gases. They are part of a well-known environmental problem afflicting pulp mills exploiting the Kraft pulp mill process. These sulfur compounds are formed in the Kraft pulping process and come in co...

UNLABELLED On the basis of total temperature increase, normal dehydration, and maturity, the odor compositions of surface and internal piles in a well-run sewage sludge compost plant were analyzed using gas chromatography-mass spectrometry with a liquid nitrogen cooling system and a portable odor detector. Approximately 80 types of substances were detected, including 2 volatile inorganic compou...

The specificity of the cleavage of thioether compounds related to cysteine by an enzyme from liver tissue of rats was described in an earlier report (I), and experiments as to the availability of thioether derivatives of cysteine and homocysteine for growth have been reported from this laboratory (2). This report is concerned with a brief description of studies of the cleavage of t.he thioether...