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| Number | Title | Issue Date |
| 5981237 | Method for liquefaction of cereal grain starch substrate and apparatus therefor A method and apparatus are disclosed for liquefaction of starch derived from cereal grain. A single-screw extruder is utilized to gelatinize a starch substrate providing significant advantage over prior art jet steam cookers. Liquefaction of the gelatiniz... | 11/09/1999 |
| 5981260 | Process for the production of cell mass and/or fermentation products under sterile conditions Process for the production of cell mass and/or fermentation products under sterile conditions, during which the fermentation mixture, at least at times, is recycled and the metabolic products of the cultivated cells, and possibly the cell mass are separat... | 11/09/1999 |
| 5972665 | Pyrodictium pullulanase The invention relates to novel thermostable pullulanases obtainable from Pyrodictium.... | 10/26/1999 |
| 5955137 | Ferulic acid decarboxylase The present invention relates to a protein having the amino acid sequence represented by SEQ ID NO: 1, or a protein having ferulic acid decarboxylase activity and having an amino acid sequence wherein one or more amino acid residues are deleted, substitut... | 09/21/1999 |
| 5932456 | Production of ethanol and other fermentation products from biomass A method and apparatus for the production of ethanol and other fermentation products including citric acid, butanol and isopropanol from non-virgin biomass having deleterious materials therein is provided. The deleterious materials prevent or retard the p... | 08/03/1999 |
| 5916780 | Pretreatment process for conversion of cellulose to fuel ethanol An improved pretreatment of cellulosic feedstocks, to enable economical ethanol production by enzyme treatment. The improved pretreatment comprises choosing either a feedstock with a ratio of arabinoxylan to total nonstarch polysaccharides (AX/NSP) of gre... | 06/29/1999 |
| 5916787 | Ethanol production in gram-positive microbes The subject invention concerns the transformation of Gram-positive bacteria with heterologous genes which confer upon these microbes the ability to produce ethanol as a fermentation product. Specifically exemplified is the transformation of bacteria with ... | 06/29/1999 |
| 5888788 | Use of ionophoretic polyether antibiotics for controlling bacterial growth in alcoholic fermentation The addition of about 0.3 to about 3 ppm of at least one polyether ionoph antibiotic to a fermentation broth inhibits production of organic acids that hinder the growth and fermentation of yeast. The present invention is useful in a variety of feedstocks... | 03/30/1999 |
| 5882906 | Staphylothermus amylase The present invention relates to an amylase isolated from Staphalothermus marinus, DSM 3639, having a temperature optima of 95°-105° C., determined at pH 5.5 and a pH optima of 4.5 to 5.5, determined at 95° C. The amylase can be employed in the product... | 03/16/1999 |
| 5869301 | Method for the production of dicarboxylic acids The present invention is an economical fermentation method for the production of carboxylic acids comprising the steps of a) inoculating a medium having a carbon source with a carboxylic acid-producing organism; b) incubating the carboxylic acid-producing... | 02/09/1999 |
| 5849984 | Method and system for treating waste nitrocellulose A method for treating waste nitrocellulose, the method comprising the steps f treating nitrocellulose with acid in a hydrolysis process to break the nitrocellulose down to glucose, recovering a majority of the acid by electrodialysis, neutralizing a remain... | 12/15/1998 |
| 5843760 | Single zymomonas mobilis strain for xylose and arabinose fermentation This invention relates to single microorganisms which normally do not ferment pentose sugars which are genetically altered to ferment the pentose sugars, xylose and arabinose, to produce ethanol, and a fermentation process utilizing the same. Examples inc... | 12/01/1998 |
| 5837506 | Continuous process for making ethanol An improved continuous process for producing ethanol from cellulosic materials employs an intermittently agitated, perpetually fed, solids retaining reactor vessel. Cellulosic substrate, catalysts and fermentation agents are introduced into a reaction ves... | 11/17/1998 |
| 5821093 | Recombinant cells that highly express chromosomally-integrated heterologous genes Recombinant host cells are obtained that comprise (A) a heterologous, polypeptide-encoding polynucleotide segment, stably integrated into a chromosome, which is under transcriptional control of an endogenous promoter and (B) a mutation that effects increa... | 10/13/1998 |
| 5786186 | DNA encoding enzymes of the glycolytic pathway for use in alcohol producing yeast Yeast is transformed so that it is capable of expressing the enzymes phosphogluconate dehydratase and 2-keto-3-deoxygluconate 6-phosphate aldolase; whereby, in fermention, a sugar can be converted to pyruvate via the Entner-Doudoroff pathway. Recombinant ... | 07/28/1998 |
| 5780275 | Coupled process of saccharide fermentation and microbial esterification A process is provided for coupled microbial saccharide fermentation and esterification to produce an esterified fermentation product from a saccharide. A microorganism capable of fermenting a saccharide to produce a water-soluble organic acid, alcohol or ... | 07/14/1998 |
| 5766895 | Method for production of ethyl alcohol The invention describes a method for the economic production of ethyl alcohol involving dehydration of the alcohol in an adsorption-desorption process using ion exchange resins which have been swollen in water from about 50 to 300 times their weight.... | 06/16/1998 |
| 5755971 | Inhibition of calcium oxalate scale in aqueous based solutions A method of inhibiting the precipitation and deposition of calcium oxalate scale in an aqueous system is disclosed, in which an effective amount of a combination of a high molecular weight lignosulfonate compound and a phosphate compound is added to the s... | 05/26/1998 |
| 5747320 | Glucose and cellobiose tolerant ଲ-glucosidase from Candida peltata A new ଲ-glucosidase enzyme which is tolerant to glucose and cellobiose, and which is effective for the hydrolysis of cellobiose to glucose, is disclosed. The enzyme is produced by Candida peltata, strain NRRL Y-21603. This ଲ-glucosidase may be... | 05/05/1998 |
| 5733758 | Tower reactors for bioconversion of lignocellulosic material An apparatus for enzymatic hydrolysis and fermentation of pretreated lignocellulosic material, in the form of a tower bioreactor, having mixers to achieve intermittent mixing of the material. Precise mixing of the material is important for effective heat ... | 03/31/1998 |
| 5726053 | Recombinant Zymomonas for pentose fermentation The invention relates to microorganisms which normally do not ferment pentose sugar and which are genetically altered to ferment pentose sugar to produce ethanol, and fermentation processes utilizing the same. Examples include Zymomonas mobilis which has ... | 03/10/1998 |
| 5726046 | Method of producing sugars using strong acid hydrolysis A economically viable method for producing sugars using concentrated acid hydrolysis of biomass containing cellulose and hemicellulose is disclosed. The cellulose and hemicellulose in the biomass is first decrystallized and then hydrolyzed to produce a hy... | 03/10/1998 |
| 5714369 | Fervidobacterium amylase and pullulanase The present invention relates to Fervidobacterium amylase and pullulanase preparations and their use in producing sweeteners and ethanol from starch. In particular the enzymes are derived from Fervidobacterium pennavorans.... | 02/03/1998 |
| 5712133 | Pentose fermentation by recombinant zymomonas The invention relates to microorganisms which normally do not ferment pentose sugar and which are genetically altered to ferment pentose sugar to produce ethanol, and fermentation processes utilizing the same. Examples include Zymomonas mobilis which has ... | 01/27/1998 |
| 5711817 | Method for the continuous conversion of cellulosic material to sugar Cellulosic material is converted to ethanol by hydrolyzing the cellulosic material in a gravity pressure vessel (50), and fermenting the product thereof. The gravity pressure vessel (50) employed is adapted to accommodate a continuous hydrolysis reaction ... | 01/27/1998 |
| 5688674 | Continuous fermentation process for the production of metabolities using a moving filter A metabolite, e.g., ethanol, is continuously produced from low cost carbohydrate substrates by a process which comprises pulverizing the carbohydrate substrate; liquefying and saccharifying the pulverized substrate; continuously fermenting the lique-sacch... | 11/18/1997 |
| 5677154 | Production of ethanol from biomass A method and apparatus for the production of ethanol from non-virgin biomass having deleterious materials therein is provided. The deleterious materials prevent or retard the production of ethanol when the non-virgin biomass is combined with a fermentatio... | 10/14/1997 |
| 5665575 | Microbial esterase for the enantioselective cleavage of 1-phenylethyl acetate The invention concerns a microbial esterase which enantioselectively cleaves (S)-1-phenylethyl acetate and is obtainable from Arthrobacter spec. (DSM 7034), Pseudomonas fluorescens (DSM 7033) or Bacillus subtilis (DSM 7035) as well as a process for enanti... | 09/09/1997 |
| 5641661 | Pichia pastoris alcohol oxidase ZZA1 and ZZA2 regulatory regions for heterologous gene expression Two novel genomic clones, ZZA1 and ZZA2, were isolated which encode for Pichia pastoris alcohol oxidase isozymes. The 5' non-coding region of ZZA1 contains common structural features involved in the transcription and translation of eukaryotic genes. Compa... | 06/24/1997 |
| 5620877 | Method of fermenting sugars resulting from strong acid hydrolysis An economically viable method of fermenting a mixture of sugars resulting from the acid hydrolysis of material containing cellulose and hemicellulose allows for the simultaneous fermentation of both pentose and hexose sugars. The sugar solution is mixed w... | 04/15/1997 |
| 5597714 | Strong acid hydrolysis of cellulosic and hemicellulosic materials A economically viable method for producing sugars using concentrated acid hydrolysis of biomass containing cellulose and hemicellulose is disclosed. The cellulose and hemicellulose in the biomass is first decrystallized and then hydrolyzed to produce a hy... | 01/28/1997 |
| 5595893 | Immobilization of microorganisms on a support made of synthetic polymer and plant material A solid support for immobilization of microorganism cells is made of a synthetic polymer such as a polyolefin, in admixture with an organic polymeric plant material such as corn fibers, oat hulls, starch, and cellulose. Preferably, the synthetic polymer i... | 01/21/1997 |
| 5578472 | Process for the production of ethanol from microalgae The present invention provides a process and system for the production of ethanol wherein a microalga capable of accumulating starch in the cells thereof is cultured, the culture solution containing the grown algal cells is concentrated, and ethanol is fo... | 11/26/1996 |
| 5571703 | Municipal solid waste processing facility and commercial ethanol production process A method of processing waste is disclosed wherein the municipal solid waste is segregated and processed to recover reusable rubber, metal, plastic, glass and the remaining organic portion of the waste stream is used to make ethanol and other chemicals. On... | 11/05/1996 |
| 5545543 | Process for the continuous production of ethanol from cereals Ethanol is continuously produced by cooking and acidifying milled cereal to produce a slurry of acidified and liquified product containing non-fermentable dextrins, screening the slurry with a stationary screen at approximately 70°-85° C. to obtain an o... | 08/13/1996 |
| 5514583 | Recombinant zymomonas for pentose fermentation The invention relates to microorganisms which normally do not ferment a pentose sugar and which are genetically altered to ferment this pentose to produce ethanol. A representative example is Zymomonas mobilis which has been transformed with E. coli xylos... | 05/07/1996 |
| 5508183 | Enhanced attrition bioreactor for enzyme hydrolysis or cellulosic materials A process for converting cellulosic materials, such as waste paper, into fuels and chemicals, such as sugars and ethanol, utilizing enzymatic hydrolysis of the major carbohydrate of paper: cellulose. A waste paper slurry is contacted by cellulase in an ag... | 04/16/1996 |
| 5482846 | Ethanol production in Gram-positive microbes The subject invention concerns the transformation of Gram-positive bacteria with heterologous genes which confer upon these microbes the ability to produce ethanol as a fermentation product. Specifically exemplified is the transformation of bacteria with ... | 01/09/1996 |
| 5455163 | Process for producing alcohol A process for the production of alcohol by the fermentation of D-xylose employing the yeast Canadida shehatae in the presence of synthetic aluminosilicates of mineral faujasite structure zeolites of X or Y type or a combination thereof.... | 10/03/1995 |
| 5424202 | Ethanol production by recombinant hosts Novel plasmids comprising genes which code for the alcohol dehydrogenase and pyruvate decarboxylase are described. Also described are recombinant hosts which have been transformed with genes coding for alcohol dehydrogenase and pyruvate. By virtue of thei... | 06/13/1995 |
