Journal
JOURNAL OF OLEO SCIENCE
Volume 68, Issue 6, Pages 551-558Publisher
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess19014
Keywords
the volatile compounds; taste attributes; processing; sesame pastes
Categories
Funding
- Henan Provincial Scientific and Technological Research Projects [152102210272, 192102110103]
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Sesame paste is used as a condiment in many parts of the world because of its unique flavor. In the study, the volatile compounds and flavor characteristics of sesame pastes processed at different temperatures (140 degrees C - 190 degrees C) were analysed by application of solid phase microextraction - gas chromatography/mass spectrometry analysis, odor activity value evaluation and sensory evaluation. For all the sesame pastes processed at the different temperatures, the pyrazine group had the highest content. The amount of the volatiles increased by 4.15-fold when the roasting temperature increased from 140 degrees C to 180 degrees C, which was mainly attributed to the increase of pyrazines, alkenes, ketones, thiazoles and pentylfuran. And accordingly, sesame paste prepared at 180 degrees C had the highest Odor Activity Value (OAV). Samples differed significantly in terms of aroma and total acceptability (p < 0.05). The sesame paste processed at 180 degrees C had a moderate roasted and sweet aroma, and the highest acceptability, followed by that processed at 170 degrees C. These results can be valuable for manufacturers to adjust the roasting process according to market demand for a particular flavor profile.
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