| Title: | "Unraveling of the Aroma-Active Compounds in Virgin Camellia Oil (Camellia oleifera Abel) Using Gas Chromatography-Mass Spectrometry-Olfactometry, Aroma Recombination, and Omission Studies" |
| Author(s): | Jia X; Deng Q; Yang Y; Xiang X; Zhou X; Tan C; Zhou Q; Huang F; |
| Address: | "Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Key Laboratory of Oilseeds Processing of Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, People's Republic of China. Hunan Great Sanxiang Camellia Oil Company, Limited, Hengyang, Hunan 421141, People's Republic of China" |
| ISSN/ISBN: | 1520-5118 (Electronic) 0021-8561 (Linking) |
| Abstract: | "Camellia oil is a popular edible oil in China as a result of its nutritional properties. However, the key odorants of camellia oil remain unclear. In this study, the volatiles of virgin camellia oil (VCO) were extracted by solvent-assisted and non-solvent-assisted methods. A total of 66 volatile compounds were identified using gas chromatography-mass spectrometry-olfactometry, with flavor dilution factors ranging from 1 to 729 via aroma extraction dilution analysis. Among them, 10 odorants were identified for the first time in VCO. Moreover, 41 volatiles were confirmed as aroma-active compounds with odor activity values greater than 1. Aroma recombination and omission studies demonstrated that aldehydes, esters, acids, and heterocyclic compounds significantly contribute to the aroma profiles of VCO. Hexanal, octanal, (E,E)-2,4-heptadienal, (E,E)-2,4-nonadienal, decyl acetate, ethyl benzoate, ethyl 2-methylbutanoate, 2-methylbutyl (Z)-2-methyl-2-butenoate, 2-methylbutanoic acid, hexanoic acid, 2-pentylfuran, and 2-methyl-3-furanthiol could impart roasted-like, nut-like, fat-like, fruit-like, grass-like, and sweat-like odors and were the key odorants in VCO. The lipoxygenase pathway was possibly responsible for the formation of key odorants in VCO. This work provides an extract aroma consistent for virgin camellia oil" |
| Keywords: | *Camellia Gas Chromatography-Mass Spectrometry Odorants/analysis Olfactometry *Volatile Organic Compounds/analysis aroma recombination gas chromatography-mass spectrometry-olfactometry non-solvent-assisted extraction omission solvent-assisted extraction v; |
| Notes: | "MedlineJia, Xiao Deng, Qianchun Yang, Yini Xiang, Xia Zhou, Xinping Tan, Chuanbo Zhou, Qi Huang, Fenghong eng 2021/02/02 J Agric Food Chem. 2021 Aug 18; 69(32):9043-9055. doi: 10.1021/acs.jafc.0c07321. Epub 2021 Feb 1" |
