摘要:
The content of phosphorus-containing components and the iron content of an edible vegetable or animal oil, preferably an oil such as soybean oil which has been wet-refined to remove mucilage, are reduced by enzymatic decomposition by contacting the oil with an aqueous solution of phospholipases A.sub.1, A.sub.2, or B and then separating the aqueous phase from the treated oil.
摘要:
A process and reactor are disclosed for the continuous treatment of a turbid liquid with a granular treating agent placed in a fixed bed through which the liquid flows. Preferably, the liquid is whey and the treating agent is lactase immobilized on support particles, and treatment involves hydrolysis of lactose in the whey. During treatment, the flow of whey through the fixed bed is periodically interrupted and a flow of cleansing liquid is passed through the fixed bed countercurrent to the flow of whey. The flow of cleansing liquid is under sufficient hydrostatic pressure to press the fixed bed against moving fragmentation devices to separate and fluidize the support particles into a fluidized bed whereby the support particles containing immobilized lactase are cleansed by removing material deposited thereon from the whey.
摘要:
A degumming step in the production of edible oils is disclosed. Vegetable oils from which hydratable phosphatides have preferably been eliminated by a previous aqueous degumming process, are freed from non-hydratable phosphatides by an enzymatic treatment, so that they may be physically refined. The main characteristic of the invention is the use of phospholipase from an Aspergillus strain. The process is gentle, economical and environment-friendly.
摘要:
Powdered or granulated enzyme preparations, free of surface active agents and containing a protease as the active enzyme, wherein the protease is present as a tannin complex, with the proviso that the enzyme preparation consists of at least 50 percent by weight and up to 99.9 percent by weight of one or more conventional diluent salts. Methods for soaking and bating skins and hides using such preparations.
摘要:
A method for making a stable aqueous liquid formulation containing at least one enzyme having proteolytic activity is disclosed. The method involves precipitating the enzyme from an aqueous medium with a salt to form a dispersion of the enzyme. The dispersion has a density of 1.22 g/cm.sup.3 to 1.23 g/cm.sup.3 due to the use of the salt. This process yields a sedimentation-resistant stable enzyme dispersion.
摘要翻译:公开了一种制备含有至少一种具有蛋白水解活性的酶的稳定含水液体制剂的方法。 该方法包括用盐从水性介质中沉淀酶以形成酶的分散体。 分散体由于使用盐而具有1.22g / cm 3至1.23g / cm 3的密度。 该方法产生耐沉降稳定的酶分散体。
摘要:
A method for making beer is disclosed wherein an amyloglucosidase enzyme from a Rhizopus culture is added to a wort and, after the enzyme has acted, the enzyme is inactivated under pasteurizing conditions.
摘要:
Methods for adsorbing a protein, for example an enzyme, onto an insoluble, solid, macroporous, small-particle support by washing said support with an aqueous solution of the protein containing an electrolyte in an ionic strength of at least 0.15 mole/liter and crosslinking said protein, before, during, or after such adsorption, with a coupling component present in aqueous electrolyte-containing solution.
摘要:
What is disclosed is a method for the free-radical polymerization, at a temperature between 0.degree. C. and 100.degree. C. using ultraviolet light, of a material to be polymerized which comprises at least one unsaturated monomer, which method comprises adding an ultraviolet absorber which is only weakly effective or is inert as a free-radical initiator to the material to be polymerized, initiating polymerization of the material in an initiation phase by irradiation thereof with ultraviolet light, controlling the further course of the polymerization in a polymerization phase by increasing the intensity of the irradiating ultraviolet light with time, and concluding the polymerization by irradiation with ultraviolet light in a terminal phase, said ultraviolet absorber absorbing in the wavelength region of the irradiating ultraviolet light.
摘要:
What is disclosed is a pearl polymer product, a method of making the same, and the use thereof as a carrier for biologically active materials, said product being composed of hollow pearl particles having a diameter from 5 to 1000 microns and consisting of a cross-linked polymer which is a cross-linked homopolymer or copolymer comprising at least one member selected from the group consisting of acrylamide, methacrylamide, methylene-bis-acrylamide and methylene-bis-methacrylamide, said polymer containing at least 5 percent by weight of a monomer having at least two carbon-carbon double bonds which are activated by a neighboring phenyl group or carbonyl group, said polymer further being of a composition such that x+3y.gtoreq.40, where x is the percent by weight in the polymer of acrylamide and methacrylamide and y is the percent by weight in the polymer of methylene-bis-acrylamide and methylene-bis-methacrylamide.
摘要:
Water-swellable, cross-linked, bead copolymers of (A) an ethylenically unsaturated monomer having a carboxylic acid anhydride, glycidyl or succinimide group, (B) a comonomer having at least two radical-polymerizable carbon double bonds, and (C) a radical-polymerizable water-soluble comonomer are disclosed to be excellent carriers capable of bonding with biologically active substances such as enzymes, enzyme substrates, inhibitors, hormones, antibiotics, antigens, and peptides.