Microbial assisted High Impact Polystyrene (HIPS) degradation
Microbial assisted High Impact Polystyrene (HIPS) degradation
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DOI：
10.1016/j.biortech.2016.03.021
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发表时间：
2016-08-01
影响因子：
11.4
通讯作者：
Nampoothiri, K. Madhavan
中科院分区：
文献类型：
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作者：
Mohan, Arya J.;Sekhar, Vini C.;Nampoothiri, K. Madhavan
研究了新分离的假单胞菌和芽孢杆菌对溴化高抗冲聚苯乙烯（HIPS）的降解效果。通过氯化三苯基四唑（TTC）验证了使用电子塑料作为唯一碳源时这些培养物的活力。将HIPS乳液与芽孢杆菌培养4天。显示浊度降低94%，假单胞菌属降低97%。通过HPLC、NMR、FTIR、TGA和重量损失分析得出降解确认的结论。降解膜的NMR光谱揭示了与溴形成的脂肪族碳链及其释放。样品的FTIR分析显示CAH、C=O、C=N基团减少。通过SEM分析观察溴化HIPS膜的表面变化。芽孢杆菌属降解显示在30天内HIPS膜的重量损失为23%（w/w）。(C)2016爱思唯尔有限公司版权所有。
The efficacy of newly isolated Pseudomonas and Bacillus strains to degrade brominated High Impact Polystyrene (HIPS) was investigated. Viability of these cultures while using e-plastic as sole carbon source was validated through Triphenyl Tetrazolium Chloride (TTC). Four days incubation of HIPS emulsion with Bacillus spp. showed 94% reduction in turbidity and was 97% with Pseudomonas spp. Confirmation of degradation was concluded by HPLC, NMR, FTIR, TGA and weight loss analysis. NMR spectra of the degraded film revealed the formation of aliphatic carbon chain with bromine and its release. FTIR analysis of the samples showed a reduction in CAH, C=O C=N groups. Surface changes in the brominated HIPS film was visualized through SEM analysis. Degradation with Bacillus spp. showed a weight loss of 23% (w/w) of HIPS film in 30 days. (C) 2016 Elsevier Ltd. All rights reserved.