BIOCHEMICAL PULPING OF REED PRETREATED BY WHITE ROT FUNGI

INTRODUCTIONThe origin of biological pulping is natural degradation of lignin by microorganism, such as white rot fungi. Many researches have been carried out, on the biological degradation of the lignin in raw materials, mostly on woods. Those researches were mainly focused on microorganism pretreatment as a prior proceeding of the mechanical pulping, for the rare possibility of pulping directly with the pretreatment by a microorganism. A series of reports showed that microorganism pretr…     

新疆石河子市蔬菜周年供应情况的调查与研究

本文通过对石河子市蔬菜周年供应情况的调查与研究,来探寻解决北方寒冷地区中、小城市和工矿区蔬菜周年供应问题的可行性措施.石河子市逐步缩小蔬菜供应淡旺季差别的主要方法是:1、建立蔬菜公司统管下的近郊专业化商品菜基地、保证国营菜店的货源.2、在淡季有计划地从外地调人鲜菜调节市场.3、适当发展加工、速冻菜、4、建立远郊冬菜生产基地,并实行蔬菜公司,单位和个人三结合贮存冬菜.5、严格价格管理.对个体菜贩实行最高限价.