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Characterization of aroma-active compounds in steamed breads fermented with Chinese traditional sourdough
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NSTL
Elsevier
The aroma components of Chinese sourdough steamed breads (CSSBs) play a vital role in CSSBs flavor. Fifteen aroma-active compounds of eight CSSBs fermented with sourdoughs from different regions were identified by gas chromatography-olfactometry and aroma extract dilution analysis. Odor activity values (OAVs) of (E,E)-2,4decadienal, naphthalene, 1-pentanol, 1-heptanol, 2-pentylfuran, 1-octen-3-ol were high, and these compounds provided CSSBs with the green, floral, fruity, alcoholic, nutty, sweet, fatty and mushroom odor. The aroma properties of Nanyang and Weinan samples belonged to the same category, while Taian sample had unique odor. Moreover, Xi'an sample had a rich and distinct aroma, such as strong green, floral and fatty odor. In addition, the aroma profiles of CSSBs fermented by different types of sourdough (Lao-mian starter or Jiao-zi starter) were significantly different. The OAVs and concentrations of key aroma components in CSSBs from different origins were diverse, which made different CSSBs had their own unique aroma characteristics.
AromaChinese traditional sourdoughAroma extract dilution analysis (AEDA)Gas chromatography-mass spectrometry-olfac-tometry (GC-MS-O)Odor activity value
NSTL
Elsevier
