专利名称可减少磷排放的绿色润滑油组分专利权人Habeeb,Jacob Joseph等(ExxonMobilResearch and Engineering Co.,USA)专利号WO2009,108,367公开日期2009年9月3日摘要本专利提供了一种可提高抗磨损性能并可降低磷排放的润滑油组分,其组...专利名称可减少磷排放的绿色润滑油组分专利权人Habeeb,Jacob Joseph等(ExxonMobilResearch and Engineering Co.,USA)专利号WO2009,108,367公开日期2009年9月3日摘要本专利提供了一种可提高抗磨损性能并可降低磷排放的润滑油组分,其组成包括:(1)基础油;(2)二烷基二硫代磷酸锌;(3)清净剂(最好是水杨酸钙清净剂);(4)多元醇酯。展开更多
The production of thermostable laccases from a native strain of the white-rot fungus Pycnoporus sanguineus isolated in Mexico was enhanced by testing different media and a combination of inducers including copper sulf...The production of thermostable laccases from a native strain of the white-rot fungus Pycnoporus sanguineus isolated in Mexico was enhanced by testing different media and a combination of inducers including copper sulfate（CuSO4）.The best conditions obtained from screening experiments in shaken flasks using tomato juice,CuSO4,and soybean oil were integrated in an experimental design.Enhanced levels of tomato juice as the medium,CuSO4and soybean oil as inducers（36.8%（v/v）,3 mmol/L,and 1%（v/v）,respectively） were determined for 10 L stirred tank bioreactor runs.This combination resulted in laccase titer of 143000 IU/L（2,2＇-azino-bis（3-ethylbenzthiazoline-6- sulfonic acid）,pH 3.0）,which represents the highest activity so far reported for P.sanguineus in a 10-L fermentor.Other interesting media resulting from the screening included glucose-bactopeptone which increased laccase activity up to 20000 IU/L,whereas the inducers Acid Blue 62 and Reactive Blue 19 enhanced enzyme production in this medium 10 times.Based on a partial characterization,the laccases of this strain are especially promising in terms of thermostability（half-life of 6.1 h at 60 °C） and activity titers.展开更多
文摘专利名称可减少磷排放的绿色润滑油组分专利权人Habeeb,Jacob Joseph等(ExxonMobilResearch and Engineering Co.,USA)专利号WO2009,108,367公开日期2009年9月3日摘要本专利提供了一种可提高抗磨损性能并可降低磷排放的润滑油组分,其组成包括:(1)基础油;(2)二烷基二硫代磷酸锌;(3)清净剂(最好是水杨酸钙清净剂);(4)多元醇酯。
基金supported by the National Science and Technology Council of Mexico(CONACYT)(No.192118)
文摘The production of thermostable laccases from a native strain of the white-rot fungus Pycnoporus sanguineus isolated in Mexico was enhanced by testing different media and a combination of inducers including copper sulfate（CuSO4）.The best conditions obtained from screening experiments in shaken flasks using tomato juice,CuSO4,and soybean oil were integrated in an experimental design.Enhanced levels of tomato juice as the medium,CuSO4and soybean oil as inducers（36.8%（v/v）,3 mmol/L,and 1%（v/v）,respectively） were determined for 10 L stirred tank bioreactor runs.This combination resulted in laccase titer of 143000 IU/L（2,2＇-azino-bis（3-ethylbenzthiazoline-6- sulfonic acid）,pH 3.0）,which represents the highest activity so far reported for P.sanguineus in a 10-L fermentor.Other interesting media resulting from the screening included glucose-bactopeptone which increased laccase activity up to 20000 IU/L,whereas the inducers Acid Blue 62 and Reactive Blue 19 enhanced enzyme production in this medium 10 times.Based on a partial characterization,the laccases of this strain are especially promising in terms of thermostability（half-life of 6.1 h at 60 °C） and activity titers.
