"环保酒精"——粮食转化酒精及饲料产品的综合技术

俄罗斯有150多家酒精工厂,工厂平均年产量1万t左右,主要原料为大麦、小麦、玉米和黑麦等。俄罗斯食品生物技术科学研究所是俄罗斯研究酒精生产、酶制剂和酵母的权威机构,该所开发的酒精生产工艺在世界上处于领先地位。其主要技术成果包括:65～80℃低温蒸煮,双酶法糖化,28～38℃中高温快速浓醪发酵,蒸馏废水回用等项技术;其中机械涡流均质是一项有效的节能技术,可节约能耗20%左右。     

Heavy metal bioaccumulation by cultivated Agaricus bisporus from artificially enriched substrates

Cultivated Agaricus bisporus possess the ability to bioaccumulate seven heavy metals (Pb, Cd, Hg, Fe, Cu, Mn, and Zn). The cultivated champignon mushroom A. bisporus was grown in soil composts of 16 different compositions. An edible mushroom, A. bisporus was also cultivated on humic compost artificially fortified with the seven heavy metals at five different concentrations (0.1 mg/kg, 0.5 mg/kg, 1.0 mg/kg, 3.0 mg/kg, and 10.0 mg/kg) and on control substrate (0 mg/kg) on a dry weight basis. The method of measuring bioaccumulation was flame atomic absorption spectrophotometry.