Characterization of the Key Aroma Compounds in Different Yeast Proteins by GC-MS/O, Sensory Evaluation, and E-Nose

Chen, Jiahui; Pu, Dandan; Shi, Yige; Sun, Baoguo; Guo, Hui; Li, Ku; Zhang, Yuyu

doi:10.3390/foods12163136

Cited by 5 publications

(1 citation statement)

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“…The effects of VOCs and odor release level and the ratio of air exchange rate to loading factor on VOCs release and odor release from PVC veneered plywood were explored [28]. The utilization of a microcell extractor in conjunction with GC-MS-O technology enables a swift and objective investigation of the VOCs and odor emission from PVC-coated plywood [29,30]. The findings of this research can benefit the decision making of both the users and producers of plywood materials by providing better guidelines for implementing plywood to avoid extensive indoor air pollution.…”

Section: Introductionmentioning

confidence: 99%

Effects of Air Exchange Rate on VOCs and Odor Emission from PVC Veneered Plywood Used in Indoor Built Environment

Ge,

Zheng,

Zhu

et al. 2023

Coatings

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As people spend more than 80% of the day in an indoor built environment, indoor air quality pollution caused by volatile organic compounds (VOCs) emitted from wood-based panels has attracted attention. PVC veneered plywood used in the indoor built environment and relevant VOCs and odor emission under different air exchange rates were studied in this research. Microcell thermal extraction technology was used to sample under the conditions of three different air exchange rates and loading factors: 0.2 m3·h−1·m−2, 0.5 m3·h−1·m−2, and 1.0 m3·h−1·m−2, respectively. Gas Chromatography-Olfactometry-Mass Spectrometry (GC-MS-O) was used to analyze VOCs and their odor release characteristics. The key odor characteristic compounds were analyzed by subjective and objective methods, and the main sources of odor release from the board were analyzed. In this experiment, the time-intensity method is mainly used to analyze the mass concentration of VOCs released from plywood. By comparing the mass concentration and odor intensity of VOCs released from plywood and its components under different air exchange rates and loading factors, the influence of the ratio of air exchange rate to loading factor on plywood is judged. The results show that with three different ratios of air exchange rate to loading factor, the VOCs emission concentration and odor intensity of plywood can be affected greatly and are the highest at 0.2 m3·h−1·m−2. The components released by PVC veneered plywood are mainly aromatic compounds, alkanes and aldehydes. The research findings can guide the indoor built environment design and construction process to control the emission of VOCs by adjusting the air exchange rate, which helps build more healthy and sustainable living environments for humans.

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Section: Introductionmentioning

confidence: 99%