Glycerides are the most abundant lipids and the richest source of energy in the body. A glyceride molecule has one,two,or three fatty acid tails attached to an alcohol backbone. In this case,the alcohol is glycerol.The terms monoglyceride,diglyceride,and ...[继续阅读]

    Gel filtration and affinity chromatography are useful laboratory methods which have not so far been applied to large scale production.However,there are many examples of low-volumn high-value products which justify the use of these expensive and labourinte...[继续阅读]

    The transfer of oxygen to the cell during fermenter aeration involves oxygen transfer from air bubbles into solution,transfer of oxygen through the medium to the microbial cell and finally uptake of oxygen by the cell. Oxygen transfer from air bubbles int...[继续阅读]

    The fermenter is constructed of a suitable grade of stainless steel,with butt-welded joints polished flat on the inner surfaces.Over-lapping joints are unacceptable since the resulting ledge causes an accumulation of spent culture,creating problems on sub...[继续阅读]

    Carbohydrates are usually defined as polyhydroxy aldehydes and ketones or substances that hydrolyze to yield polyhydroxy aldehydes and ketones.Monosaccharides are classified according to (1) the number of carbon atoms present in the molecule and (2) wheth...[继续阅读]

    Sensors may be on-line,that is connected to the fermenter installation or in contact with the process stream,or off-line,where a sample is aseptically removed for analysis.Common fermenter on-line sensors are used for physical measurement of temperature,p...[继续阅读]

    (重点注意在论文的Introduction中是如何展开话题的)We recently investigated the adhesion of cultred plant cells as influenced by various biomaterial substances,medium adjuvants,pH and cell concentrations during short-term experiments in liquids of various defined composition...[继续阅读]

    The basic nutritional requirements of heterotrophic (异养型的),microorganisms are an energy or carbon source,an available nitrogen source,inorganic elements,and water,for some microorganisms,growth factors (生长因子) and oxygen are also needed.The elemental compo...[继续阅读]

    Capital costs for bacterial biomass production will dependent upon the equipment requirements for storing,processing and handling substrates,sterilization or cleaning operation,product separation,recovery and drying,and local land,site preparation and con...[继续阅读]

    The characteristics of organisms and medium have been detailed previously. In some chemostat experiments the normal medium has been modified with respect to glucose,KH2PO4,and CaCl2·H2O concentration.Such changes are detailed with the results.A sketch of ...[继续阅读]