文献类型：期刊文献

英文题名：Chemical composition, odor characteristics and risk value analysis of odorants in particleboards

作者：Yang, Fang[1] Zou, Xianwu[1] Zhu, Liming[1] Lv, Bin[1] Fu, Yuejin[1] Liu, Bo[1] Tang, Lina[1] Chen, Qian[1]

第一作者：Yang, Fang

通信作者：Zou, XW[1]

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China

年份：2024

卷号：15

期号：12

外文期刊名：ATMOSPHERIC POLLUTION RESEARCH

收录：;Scopus(收录号：2-s2.0-85204019402);WOS:【SCI-EXPANDED(收录号:WOS:001318330500001)】；

基金：The authors thank the fund for National Key R & D Program of China (Project No.: 2022YFD2200704) for financial support of this work.

语种：英文

外文关键词：Particleboards; Odorants; Chemical composition; odor activity value; Risk value

摘要：The pungent odor emitted by particleboards affect people's physical and mental health. However, traditional methods using a sensory odor panel cannot determine the chemical composition and source of odorants, and cannot assess the risk of odor. In this study, the threshold odor concentration (TOC) value of terpenes in woody raw materials were determined by gas chromatography-mass spectrometry-olfactometry (GC-MS-O), and the TOC and the lowest concentration of interest (LCI) databases of particleboard odorants was established based on self-test and literature retrieval. Then, the odor activity value (OAV) and risk value (RV) of the main odor compounds were calculated and evaluated based on their TOC and LCI value. The results showed that benzene series, terpenes, acetic acid, hexaldehydes and other small molecules were the predominant substances released from particleboards. Although acetic acid (strong, pungent, vinegar-like odor), p-, m-xylene (pungent aroma), 1butanol (spicy alcohol), o-xylene (pungent aroma), benzaldehyde (bitter almond flavor), naphthalene (strong tar flavor) had pungent odor, the main odorants (OAV>1) were aldehydes (such as hexanal, nonanal, pentanal and heptanal), terpenes (such as longifolene), and benzene series (p-, m-xylene). The reduction of aldehydes, terpenes and benzene series was the main way to reduce the pungent odor of particleboards. Although the single RV of these substances was much less than 1, the sum of all RV in HB exceeded 1. Therefore, the use of HB indoors needs careful consideration.