TY - JOUR T1 - Characterisation of aroma profiles of commercial sufus by odour activity value, gas chromatography-olfactometry, aroma recombination and omission studies. AU - Xiao,Zuobing, AU - Shang,Yi, AU - Chen,Feng, AU - Niu,Yunwei, AU - Gu,Yongbo, AU - Liu,Shengjiang, AU - Zhu,Jiancai, Y1 - 2015/03/19/ PY - 2015/3/20/entrez PY - 2015/3/20/pubmed PY - 2015/12/15/medline KW - GC-O/AEDA KW - OAV KW - aroma recombination and omission KW - commercial sufu SP - 2007 EP - 12 JF - Natural product research JO - Nat Prod Res VL - 29 IS - 21 N2 - Sufu is a solid-state fermented product made from soya beans. For the sake of quality control and regulation purposes, it is essential to be able to identify key odorants of various commercial sufus. To identify the aroma-active compounds in sufus, gas chromatography-olfactometry/aroma extract dilution analysis (GC-O/AEDA) was performed, and odour activity value (OAV) was estimated. The correlations between aroma profiles and identified aroma-active compounds were also investigated by principal component analysis. Results showed that 35 aroma-active compounds were detected through OAV calculation, while 28 compounds were identified by using GC-O/AEDA. Quantitative descriptive analysis revealed that aroma recombination model based on OAV calculation was more similar to original sufu in terms of aroma comparing to aroma recombination model based on GC-O/AEDA. Omission experiments further confirmed that the aroma compounds, such as ethyl butanoate, ethyl 2-methylbutanoate, ethyl hexanoate, (E,E)-2,4-decadienal and 2,6-dimethylpyrazine, contributed most significantly to the characteristic aroma of a commercial sufu. SN - 1478-6427 UR - https://www.unboundmedicine.com/medline/citation/25790084/Characterisation_of_aroma_profiles_of_commercial_sufus_by_odour_activity_value_gas_chromatography_olfactometry_aroma_recombination_and_omission_studies_ DB - PRIME DP - Unbound Medicine ER -