Abstract: Certain bacteria indigenous to humans produce antimicrobial substances called bacteriocins which inhibit other bacteria, including members of their own species. Mutacins are a class of antibiotic substances made by Streptococcus mutans. Disclosed is the purification and biochemical characterization of a novel lanthionine-containing mutacin peptide from S. mutans. The purified peptide is pH- and temperature-stable and its amino acid composition indicates the presence of lanthionine and .beta.-methyllanthionine. Also provided are methods of making and using the purified polypeptide.

Abstract: Certain bacteria indigenous to humans produce antimicrobial substances called bacteriocins which inhibit other bacteria, including members of their own species. Mutacins are a class of antibiotic substances made by Streptococcus mutans. Disclosed is the purification and biochemical characterization of a novel lanthionine-containing mutacin peptide from S. mutans. The purified peptide is pH- and temperature-stable and its amino acid composition indicates the presence of lanthionine and .beta.-methyllanthionine. Also provided are methods of making and using the purified polypeptide.

Abstract: The present invention relates to an activator of peroxo compounds, its method of manufacture, and its method of use. The activator is useful as an additive to textile cleansing and disinfecting agents that contain peroxo compounds. The invention permits the bleaching and disinfecting of textiles at temperatures between 25.degree. C. and 60.degree. C.The activator comprises a combination of the following compounds, by weight: (a) phthalic anhydride (4-98%); (b) N-acetylphthalimide (2-96%); (c) phthalimide (0.1-28%); (d) stabilizer (0.2-25%) and/or (e) soluble polymer (0.2-12%); wherein the stabilizer is an aliphatic carboxylic acid having from 12-22 carbon atoms, the polymer is soluble in water or in organic solvents, and the particle size of the final activator composition is from 0.1 to 3.5 mm.

Abstract: Forming die for manufacturing screw workpieces of a tube semi-product, e.g. rotors of single-spindle pumps. The function cavity of the forming dies consists of a guide part, a forming part, and a calibrating part. The guide part of the function cavity is formed by the intersection of a cylindrical surface and a helix, the forming part is formed by the intersection of a conical surface and a helix, and the calibrating part is of the shape of the helix of the final product. A minimum length of the guide part of the function cavity is equal to the diameter of the cylindrical surface, but the minimum length of the forming part as well as the length of the calibrating part of the function cavity is equal to one lead of the helix. The ratio of the diameter of the cylindrical surface of the guide part to the diameter of the helix is at least 1.1:1.

Abstract: Apparatus for radial shaping of rotors, stators, crankshafts, spindles and the like from an elongate seamless tube where a supporting ring performing a reciprocating motion according to an adjustable stroke of a connecting rod causes by way of rollers and guiding segments a reduction and increase of the radial distance of sliding shoes with forming jaws with respect to the formed object.

Abstract: The invention pertains to the textile livening agent with the antistatic effect and favorable dermatologic properties which contains softening, stabilizing, whitening, coloring, scenting and dermatologic components, anionactive, nonionogenic and cationactive tensides and other additives and 2-50 (preferably 4-25) wt. % of 3-(hydroxyalkylamino)-2-hydroxypropyl esters of fatty acids of the general formula RCOOCH.sub.2 CH(OH)CH.sub.2 N(R.sub.1 R.sub.2), where R are the C.sub.16 -C.sub.22 alkyls or alkenyls, R.sub.1 is H, CH.sub.2 CH.sub.2 OH, CH.sub.2 CH.sub.2 CH.sub.2 OH, CH.sub.3 CHCH.sub.2 OH, CH.sub.2 CH(OH)CH.sub.3, CH.sub.3 CH.sub.2 CHCH.sub.2 OH, CH.sub.3 CHCH.sub.2 CH.sub.2 OH, CH.sub.2 CH.sub.2 CH.sub.2 CH.sub.2 OH, or CH.sub.3 CHCH(OH)CH.sub.3, and R.sub.2 is the same substituent as R.sub.1 except for H.

Abstract: This invention relates to a detergent containing a tenside which evidences an activating power which is distinct from the common properties of surface-active agents. More particularly, the present invention relates to a detergent containing a tenside which manifests the ability to form complex compounds with metal cations.