| Title: | Identification of aroma active compounds in walnut oil by monolithic material adsorption extraction of RSC18 combined with gas chromatography-olfactory-mass spectrometry |
| Author(s): | Xu Y; Bi S; Xiong C; Dai Y; Zhou Q; Liu Y; |
| Address: | "Beijing Engineering and Technology Research Center of Food Additives, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Food and Health, Beijing Technology and Business University (BTBU), Beijing 100048, China. Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory Wuhan, Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences, Wuhan 430062, China. Electronic address: zhouqi01@caas.cn. Beijing Engineering and Technology Research Center of Food Additives, Beijing Advanced Innovation Center for Food Nutrition and Human Health, School of Food and Health, Beijing Technology and Business University (BTBU), Beijing 100048, China. Electronic address: liuyecau@126.com" |
| DOI: | 10.1016/j.foodchem.2022.134303 |
| ISSN/ISBN: | 1873-7072 (Electronic) 0308-8146 (Linking) |
| Abstract: | "A novel extraction method of volatile aroma compounds (VACs) from walnut oil (WO) using monolithic material adsorption extraction (MMSE) was developed herein, and its efficiency was compared with the conventional extraction method based on solid-phase microextraction (SPME) combined with gas chromatography-olfactory-mass spectrometry (GC-O-MS). After protocol optimization of MMSE-RSC18, 77 volatile compounds (38 ones can be sniffed) were extracted from WO, thus having a better performance compared to SPME (56 volatile compounds, 35 ones can be sniffed). Subsequently, based on flavor dilution factors (FDs), odor activity values (OAVs), and recombination and omission experiments, key aroma-active compounds in WO were 1-octen-3-ol (OAV = 82.58), (E)-2-decenal (OAV = 4.10), linalool (OAV = 2.37), gamma-dodecalactone (OAV = 2.30), 2-pentylfuran (OAV = 1.62), (E)-2-nonenal (OAV = 1.14) and pentanal (OAV = 1.04). Collectively, compared to HS-SPME, MMSE-RSC18 provided higher capture efficiency of VACs, enabling efficient extraction and analysis of sample aromas" |
| Keywords: | Odorants/analysis *Juglans Adsorption Gas Chromatography-Mass Spectrometry/methods Smell *Volatile Organic Compounds/analysis Olfactometry/methods Aroma-active compound Gas chromatography-olfactory-mass spectrometry Headspace solid-phase microextraction M; |
| Notes: | "MedlineXu, Ying Bi, Shuang Xiong, Chunhui Dai, Yixin Zhou, Qi Liu, Ye eng England 2022/09/25 Food Chem. 2023 Feb 15; 402:134303. doi: 10.1016/j.foodchem.2022.134303. Epub 2022 Sep 18" |
