Chemical Characterization and Influencing Factors of Gaseous and Particulate Components in Cooking Oil Fume (COF) from Traditional Chinese Dishes: Insights from High-Resolution Mass Spectrometry

化学 质谱法 环境化学 微粒 食品科学 气相色谱-质谱法 色谱法 有机化学
作者
Boyue Jia,Bailiang Liu,Zhi Liu,Longbo Shi,Jung Hyun Son,Lidia Morawska,Wen Tan,Liang Zhu,Lina Wang,Jianmin Chen
出处
期刊:Environmental Pollution [Elsevier BV]
卷期号:360: 124666-124666
标识
DOI:10.1016/j.envpol.2024.124666
摘要

Cooking oil fumes (COF) are known to emit a wide range of organic compounds with significant impacts on human health and urban air quality. This study used HPLC-QToF-MS and Vocus PTR-TOF to explore the chemical constituents and influencing factors of the COF generated from eight typical Chinese dishes representing different areas in a laboratory kitchen. The results revealed that both CHO and CHON compounds exhibited strong reducibility and saturability, with CHO compounds being the dominant and CHON compounds showing greater diversity. 24 among 168 CHO compounds were identical with those generated from heating soybean oil, representing 72.4%-92.3% in abundance and 22.2%-29.2% in quantity. That was 5 among 113 CHON compounds, accounting for 7.8%-10% in abundance and 4.7%-6.7% in quantity. These findings suggest that the major CHO compounds from heating soybean oil continued to dominate the abundances in dishes. The diversity of CHO compounds and the presence of CHON compounds were influenced by the food ingredients. The VOC analysis indicated that oxygen-containing organics were the major components. 6 identical VOC species between cooking dishes and heating soybean oil were identified, comprising 36.02%-67.84% of the total VOCs mass. Notably, poor ventilation could result in even higher COF concentrations in the connected room compared to the kitchen itself.
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