利用芽孢杆菌 CYR1 从烷基酚、单环和多环芳烃生产聚 3-羟基丁酸酯（PHB）：变废为宝的新策略。
Poly-3-hydroxybutyrate (PHB) production from alkylphenols, mono and poly-aromatic hydrocarbons using Bacillus sp. CYR1: A new strategy for wealth from waste.
机构信息
Department of Applied Sciences, College of Environmental Technology, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran 050-8585, Japan.
Research Center for Environmentally Friendly Materials Engineering, Muroran Institute of Technology, 27-1 Mizumoto-cho, Muroran, Hokkaido 050-8585, Japan.
出版信息
Bioresour Technol. 2015 Sep;192:711-7. doi: 10.1016/j.biortech.2015.06.043. Epub 2015 Jun 16.
In the present study five different types of alkylphenols, each of the two different types of mono and poly-aromatic hydrocarbons were selected for degradation, and conversion into poly-3-hydroxybutyrate (PHB) using the Bacillus sp. CYR1. Strain CYR1 showed growth with various toxic organic compounds. Degradation pattern of all the organic compounds at 100 mg/l concentration with or without addition of tween-80 were analyzed using high pressure liquid chromatography (HPLC). Strain CYR1 showed good removal of compounds in the presence of tween-80 within 3 days, but it took 6 days without addition of tween-80. Strain CYR1 showed highest PHB production with phenol (51 ± 5%), naphthalene (42 ± 4%), 4-chlorophenol (32 ± 3%) and 4-nonylphenol (29 ± 3%). The functional groups, structure, and thermal properties of the produced PHB were analyzed. These results denoted that the strain Bacillus sp. CYR1 can be used for conversion of different toxic compounds persistent in wastewaters into useable biological polyesters.
在本研究中，选择了五种不同类型的烷基酚和两种不同类型的单环和多环芳烃，用于使用芽孢杆菌 CYR1 进行降解和转化为聚 3-羟基丁酸酯（PHB）。菌株 CYR1 显示出对各种有毒有机化合物的生长。使用高压液相色谱（HPLC）分析了在 100mg/l 浓度下有无吐温-80 存在时所有有机化合物的降解模式。在吐温-80 的存在下，菌株 CYR1 在 3 天内显示出良好的化合物去除效果，但在没有添加吐温-80 的情况下需要 6 天。菌株 CYR1 对苯酚（51±5%）、萘（42±4%）、4-氯苯酚（32±3%）和 4-壬基酚（29±3%）表现出最高的 PHB 生产能力。分析了所产生的 PHB 的官能团、结构和热性能。这些结果表明，芽孢杆菌 CYR1 菌株可用于将废水中存在的不同有毒化合物转化为可用的生物聚酯。
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