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Optimization of Protein Removal Method and Condition of Polysaccharide from Phellinus Linteus 被引量:11
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作者 谢丽源 彭卫红 甘炳成 《Agricultural Science & Technology》 CAS 2011年第9期1249-1251,共3页
[Objective] The research aimed at optimizing protein removal method and condition of polysaccharide extracts from Phellinus Linteus and comparing the effects of two methods on protein removal.[Method] Free proteins in... [Objective] The research aimed at optimizing protein removal method and condition of polysaccharide extracts from Phellinus Linteus and comparing the effects of two methods on protein removal.[Method] Free proteins in polysaccharide from Phellinus Linteus were removed using Sevag method and TCA method.[Result] The TCA method was better than Sevag method,and the optimum protein removal condition was treated with 5% TCA for 30 min and for three times,under that condition,the protein removal rate attained 82% while the polysaccharide loss rate was only 10.8%.[Conclusion] The TCA method was a better way to remove proteins of polysaccharide from Phellinus Linteus. 展开更多
关键词 Phellinus linteus Sevag method TCA method POLYSACCHARIDE protein removal rate Polysaccharide loss rate
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Nitrate removal and extracellular polymeric substances of autohydrogenotrophic bacteria under various pH and hydrogen flow rates
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作者 Tran-Ngoc-Phu Nguyen Pei-Chung Chen Chihpin Huang 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2018年第1期50-57,共8页
In recent years there has been an increasing interest in the use of autohydrogenotrophic bacteria to treat nitrate from wastewater. However, our knowledge about the characteristics of extracellular polymeric substance... In recent years there has been an increasing interest in the use of autohydrogenotrophic bacteria to treat nitrate from wastewater. However, our knowledge about the characteristics of extracellular polymeric substances(EPS) releasing by these activities is not yet very advanced. This study aimed to investigate the change in EPS compositions under various p H values and hydrogen flow rates, taking into consideration nitrogen removal. Results showed that p H 7.5 and a hydrogen flow rate of 90 m L/min were the optimal operating conditions, resulting in 100% nitrogen removal after 6 hr of operation. Soluble and bound polysaccharides decreased, while bound proteins increased with increasing p H. Polysaccharides increased with increasing hydrogen flow rate. No significant change of bound proteins was observed at various hydrogen flow rates. 展开更多
关键词 Autohydrogenotrophic bacteria Nitrate removal Extracellular polymeric substances Polysaccharides proteins
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