Bacteria promise to cut the cost of making ascorbic acid

Article Abstract:

Genencor International Inc. of Rochester, NY, Eastman Chemical Co. of Kingsport, TN, Electrosynthesis Company Inc. of Buffalo, NY, Microgenomics Inc. of La Jolla, CA, and Argonne National Laboratory of Argonne, IL, have worked together to come up with genetically modified bacteria that can directly ferment glucose to 2-Keto-L-gulonic acid (2-KLG). The process removes four steps in conventional Reichstein and Grussner synthesis, thus allowing the possibility of smoothening the commercial production of ascorbic acid, or vitamin C. An official described the process as the first economically viable one that enables the direct production of 2-KLG from glucose in a single fermentation.

Comment:

Works w/ other organizations to develop genetically modified bacteria that can directly ferment glucose to 2-Keto-L-gulonic acid

In-Vitro Diagnostic Substance Manufacturing, Bacterial Culture Products, Eastman Chemical Co., Bacterial cultures, Genencor International Inc., Electrosynthesis Company Inc., Microgenomics Inc.

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Choose the right vacuum pump

Article Abstract:

Vacuum pumps are widely used in the chemical process industries, particularly in the distillation, drying, flash cooling, stripping and evaporation operations. The five major types of vacuum pumps are the ejector pumps, liquid-ring pumps, dry pumps, rotary piston pumps and the once-through-oil pumps. Among the important factors to be considered in the selection of the pumps are the mass flowrate and molecular weight of each components in the process liquid to be evacuated, and the pressure and the temperature at the inlet to the vacuum-producing system.

Air and Gas Compressor Manufacturing, Vacuum Pumps ex Cryogenic, Vacuum pumps

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Air powers the big chill in a successful demonstration

Article Abstract:

Air Products and Chemicals Inc.'s Closed-Cycle Air Refrigeration System (CCAR) uses high-pressure air for refrigeration instead of ammonia. The new technology, which the Allentown, PA-based company has been demonstrating at Eastman Kodak Co.'s manufacturing facility in Rochester, NY, since April 1998, is capable of generating 50 tons of refrigeration from a device that is half the size of a similar-capacity ammonia system. Air Products intends to lease out standard CCAR units capable of as much as 200 tons of refrigeration.

Comment:

Its Closed-Cycle Air Refrigeration System (CCAR) uses high-pressure air for refrigeration instead of ammonia

Refrigeration & Air Conditioning Eqp, Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing, Cooling systems, Air Products and Chemicals Inc.

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