Acetaldehyde emission from wood induced by the addition of ethanol
Acetaldehyde emission from wood induced by the addition of ethanol
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添加乙醇引起的木材乙醛排放
DOI：
10.1007/s10086-011-1215-9
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发表时间：
2012
影响因子：
2.9
通讯作者：
A. Inoue
中科院分区：
文献类型：
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作者：
S. Tohmura;A. Ishikawa;K. Miyamoto;A. Inoue
提出了乙醇诱导木材释放乙醛的机理。已知乙醛的产生是由于乙醇经由涉及活体中的醇脱氢酶（ADH）的代谢过程而氧化。然而，目前还不清楚酶促醇氧化是否适用于木材。我们使用注射器法和HPLC分析法研究了木材部分、调节、储存地点以及加热和灭菌处理对乙醛释放的可能影响因素。我们再次证实，乙醛排放观察只有当乙醇添加到木材。柳杉心材的乙醛释放量高于边材。Don）和日本扁柏（Chamaaparis obtusa Endl.）标本此外，在绿色雪松心材样品中测定了1-2摩尔%的乙醛转化率，而相反，风干的雪松心材样品显示4-5摩尔%。环氧乙烷气体灭菌对气干材有降低乙醛释放的作用，但对绿色材无影响。蒸压灭菌可以完全防止绿色木材和风干木材的乙醛排放。这些结果表明，木材中的原始ADH和从外部通过微生物附着到木材上的ADH被认为是乙醇诱导的木材乙醛排放的主要原因。
A mechanism of acetaldehyde emission from wood induced by the addition of ethanol was proposed. It is known that acetaldehyde generation is due to the oxidation of ethanol via a metabolic process involving alcohol dehydrogenase (ADH) in living bodies. However, it remains unclear whether the enzymatic alcohol oxidation is applicable to wood. We investigated possible factors of wood parts, conditioning, storage sites, and heating and sterilization treatments on acetaldehyde emission using the syringe method and HPLC analysis. We reconfirmed that acetaldehyde emission was observed only when ethanol was added to wood. Greater acetaldehyde emissions were obtained in heartwood compared to sapwood in both Japanese cedar (Cryptomeria japonica D. Don) and Japanese cypress (Chamaecyparis obtusa Endl.) specimens. In addition, an acetaldehyde conversion rate of 1–2 mol% was determined in green cedar heartwood samples, while, conversely, air-dried cedar heartwood samples showed 4–5 mol%. Ethylene oxide gas sterilization had the effect of decreasing acetaldehyde emission on air-dried wood, but not on green wood. Autoclave sterilization could completely prevent acetaldehyde emissions from both green and air-dried wood. These results suggested that an original ADH in wood and an attached ADH from the outside via microorganisms onto wood were assumed to be the primary causes of acetaldehyde emissions from wood induced by the addition of ethanol.
使用 PRF 树脂和乙醇的胶合层压木材的乙醛排放量。
DOI：
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发表时间：
2005
期刊：
55^<th> Japan Wood Society Annual Meeting proceedings (Kyoto)
影响因子：
--
作者：
Tohmura S.;Miyamoto K.;Inoue A.
通讯作者：
Inoue A.
柳杉边材在干燥过程中表达的序列标签。
DOI：
--
发表时间：
2007
期刊：
Tree Physiology 27
影响因子：
--
作者：
Kazumasa Yoshida;Mitsuru Nishiguchi;Norihiro Futamura;Tokihiko Nanjo.
通讯作者：
Tokihiko Nanjo.