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5094668 Enzymatic coal desulfurization
PATENT
zymatic activity within intact cells. The fluorogenic substrates are lysosomotropic derivatives of 2,3-dicyano-hydroquinone (DCH). These derivatives may be employed for detecting lysosomal enzymatic activity within intact cells using fluorescent microscopy and cytometry.
5089403 PROCESS FOR ENZYMATIC HYDROLYSIS OF FATTY ACID TRIGLYCERIDES WITH OAT CARYOPSES Earl G Hammond, Inmok Lee assigned to Iowa State University Research Foundation Inc Triglyceride oils are enzymatically hydrolyzed to fatty acids and glycerol by liquid phase contact with moistened dehulled oat seeds (oat caryopses). As produced, the fatty acids dissolve in the oil phase and the glycerol is absorbed into the caryopses which facilitates separation of the products of reaction. In a single contacting cycle, 20% or greater conversion of the triglyceride reactant can bc obtained, and by cyclic or sequential contacting 50% or more of the oil reactant can be hydrolyzed.
5089414 ENZYMATIC
SOAKING METHOD
Juergen Christner, Ernst Pfleiderer, Tilman Taeger, Seeheim Jugenheim, Federal Republic Of Germany assigned to Rohm GmbH The soaking of hides and skins is enzymatically assisted in a method using an aqueous float having a pH from 9 to 1I which contains A) a lipase having an activity optimum in the pH region from 9 to 11, B) a protease with activity in the pH region from 9 to 11, and C) a surface active agent.
5091299 AN ENZYME ELECTRODE FOR USE IN ORGANIC SOLVENTS Anthony P F Turner, David Best, Geoffrey F Hall, Cranfield, Bedfordshire, MK43 OBD, United Kingdom
309
ABSTRACTS
A method of determining an analyte in an organic or microaqueous solution involves the use of an enzyme electrode at which an enzyme is retained. The enzyme may be immobilised covalently at the electrode but is preferably retained at a hydrophilic support (4) which may be connected to an electrical conductor. Electrochemical detection of analytes in organic or microaqueous solvents using an enzyme electrode has several advantages over existing methods which employ aqueous solutions of analyte. For example compounds with low water solubilities may be detected, detection of a particular analyte may be made more selective by appropriate choice of solvent, the thermal stability of the enzyme may be enhanced and the enzymes may be readily retained at the electrode by virtue of their insolubility in the organic or microaqueous solvent.
5093021 ENCAPSULATED ENZYME IN DRY BLEACH COMPOSITION Thomas Coyne, J Bruce England, Blanca Haendler, Frances E Mitchell, Dale S Steichen, Carrole L Johnson assigned to The Clorox Company Methods and compositions for increased stability of enzymes in oxidant dry bleach. Enzyme stability is adversely affected by increased temperature, humidity, and the presence of strong oxidants, such as peracids. The instant invention provides enzyme stability in the presence of oxidant bleaches by coating or encapsulating the enzyme, while providing enzyme solubility suitable for use in bleach mixtures upon introduction to an aqueous medium. Particularly, alkali and neutral materials act as protection agents, which neutralize oxidant species before the contact and denature the enzyme. Other standard bleaching composition adjuncts such as builders, fillers, buffers, brighteners, fragrances, and the like may be included in the enzyme-containing oxidant bleach composition in addition to the discrete coated enzyme granules.
5094668 ENZYMATIC COAL DESULFURIZATION Ernest E Kern, William M Menger, David A Odelson, Anthony S Sinskey, Donald Wise,
PATENT ABSTRACTS
310
Debra J Trantolo tries Incorporated
assigned to Houston
Indus-
Coal is desulfurized by oxidation to convert organic sulfur moieties in the coal matrix to sulfates, and by treatment with a sulfatase to cleave the sulfates and thereby remove organic sulfur.
5094948 IMMOBILIZED
FTF ENZYMES
Takao Uchiyama, Akira Kamata, Hiroshi Kusano, Minoo, Japan assigned to Mitsubishi Kasei Corporation
Disclosed herein is an immobilized enzyme inulin-D-fructotransferase carried in a specific anionic exchange resin with pores having a mode radius in the range of 75 to 2,000 angstroms. The immobilized enzyme of the present invention is effective in the production of DFA III from inmin.
zymatic activity within intact cells. The fluorogenic substrates are lysosomotropic derivatives of 2,3-dicyano-hydroquinone (DCH). These derivatives may be employed for detecting lysosomal enzymatic activity within intact cells using fluorescent microscopy and cytometry.
5089403 PROCESS FOR ENZYMATIC HYDROLYSIS OF FATTY ACID TRIGLYCERIDES WITH OAT CARYOPSES Earl G Hammond, Inmok Lee assigned to Iowa State University Research Foundation Inc Triglyceride oils are enzymatically hydrolyzed to fatty acids and glycerol by liquid phase contact with moistened dehulled oat seeds (oat caryopses). As produced, the fatty acids dissolve in the oil phase and the glycerol is absorbed into the caryopses which facilitates separation of the products of reaction. In a single contacting cycle, 20% or greater conversion of the triglyceride reactant can bc obtained, and by cyclic or sequential contacting 50% or more of the oil reactant can be hydrolyzed.
5089414 ENZYMATIC
SOAKING METHOD
Juergen Christner, Ernst Pfleiderer, Tilman Taeger, Seeheim Jugenheim, Federal Republic Of Germany assigned to Rohm GmbH The soaking of hides and skins is enzymatically assisted in a method using an aqueous float having a pH from 9 to 1I which contains A) a lipase having an activity optimum in the pH region from 9 to 11, B) a protease with activity in the pH region from 9 to 11, and C) a surface active agent.
5091299 AN ENZYME ELECTRODE FOR USE IN ORGANIC SOLVENTS Anthony P F Turner, David Best, Geoffrey F Hall, Cranfield, Bedfordshire, MK43 OBD, United Kingdom
309
ABSTRACTS
A method of determining an analyte in an organic or microaqueous solution involves the use of an enzyme electrode at which an enzyme is retained. The enzyme may be immobilised covalently at the electrode but is preferably retained at a hydrophilic support (4) which may be connected to an electrical conductor. Electrochemical detection of analytes in organic or microaqueous solvents using an enzyme electrode has several advantages over existing methods which employ aqueous solutions of analyte. For example compounds with low water solubilities may be detected, detection of a particular analyte may be made more selective by appropriate choice of solvent, the thermal stability of the enzyme may be enhanced and the enzymes may be readily retained at the electrode by virtue of their insolubility in the organic or microaqueous solvent.
5093021 ENCAPSULATED ENZYME IN DRY BLEACH COMPOSITION Thomas Coyne, J Bruce England, Blanca Haendler, Frances E Mitchell, Dale S Steichen, Carrole L Johnson assigned to The Clorox Company Methods and compositions for increased stability of enzymes in oxidant dry bleach. Enzyme stability is adversely affected by increased temperature, humidity, and the presence of strong oxidants, such as peracids. The instant invention provides enzyme stability in the presence of oxidant bleaches by coating or encapsulating the enzyme, while providing enzyme solubility suitable for use in bleach mixtures upon introduction to an aqueous medium. Particularly, alkali and neutral materials act as protection agents, which neutralize oxidant species before the contact and denature the enzyme. Other standard bleaching composition adjuncts such as builders, fillers, buffers, brighteners, fragrances, and the like may be included in the enzyme-containing oxidant bleach composition in addition to the discrete coated enzyme granules.
5094668 ENZYMATIC COAL DESULFURIZATION Ernest E Kern, William M Menger, David A Odelson, Anthony S Sinskey, Donald Wise,
PATENT ABSTRACTS
310
Debra J Trantolo tries Incorporated
assigned to Houston
Indus-
Coal is desulfurized by oxidation to convert organic sulfur moieties in the coal matrix to sulfates, and by treatment with a sulfatase to cleave the sulfates and thereby remove organic sulfur.
5094948 IMMOBILIZED
FTF ENZYMES
Takao Uchiyama, Akira Kamata, Hiroshi Kusano, Minoo, Japan assigned to Mitsubishi Kasei Corporation
Disclosed herein is an immobilized enzyme inulin-D-fructotransferase carried in a specific anionic exchange resin with pores having a mode radius in the range of 75 to 2,000 angstroms. The immobilized enzyme of the present invention is effective in the production of DFA III from inmin.