Abstract: The present invention provides a natural yeast extract having a high-impact first taste by containing glutamic acid in a large amount. Further, the present invention provides a yeast extract having strong umami by containing 5?-guanylic acid or 5?-inosinic acid in a large amount. In addition, the present invention provides a yeast mutant accumulating glutamic acid, glutamine, and ribonucleic acid in a large amount for obtaining the yeast extract. A yeast mutant inducing a natural mutation to which organic acid-tolerance or organic acid analogue-tolerance is imparted accumulates free glutamic acid and glutamine in such a significant amount as a total amount of 10% by weight or more in a cell, and further accumulates ribonucleic acid in an amount of 5% by weight or more. A yeast extract produced using the above yeast mutant contains L-glutamic acid in an amount of 20% by weight or more, and further contains 5?-IG in an amount of 3% by weight or more.

Abstract: A natural yeast extract which is rich in glutamic acid and therefore has an impact at first taste. Further, provided is a yeast extract which is also rich in 5?-guanylic acid or 5?-inosinic acid and therefore has strong umami. Further, provided is a yeast mutant capable of accumulating a large amount of glutamic acid, glutamine and ribonucleic acid for obtaining such a yeast extract. A yeast mutant to which resistance to organic acids and analogues thereof has been imparted by inducing spontaneous mutation, accumulates a significant amount, i.e., 10% by weight or more of the total of free glutamic acid and glutamine in the cell, and further accumulates 5% by weight or more of a ribonucleic acid. The yeast extract produced by using this strain contains 20% by weight or more of L-glutamic acid, and further contains 3% by weight or more of 5?-IG.

Abstract: An internal mandrel for cooling a tubular thin film is disclosed where an air layer is eliminated in the lower side cooler of the internal mandrel, so that the tubular thin film can be continuously and stably produced. In the internal mandrel for directly cooling the tubular thin film while using external circularly shaped cooling tank where the tubular thin film is downwardly extruded through a circular slit of the die, the internal mandrel is characterized in that coolant for cooling a lower most part of the internal mandrel is flown in the countercurrent direction in the internal mandrel to the tubular thin film.

Abstract: The object of the present invention is to provide an internal mandrel for cooling a tubular thin film where air layer is not remaining in the lower side cooler of the internal mandrel, so that the tubular thin film can be continuously and stably produced. In the internal mandrel for directly cooling the tubular thin film while using external circularly shaped cooling tank where the tubular thin film is downwardly extruded through a circular slit of the die, the internal mandrel is characterized in that coolant for cooling a lower most part of the internal mandrel is flown in such a direction as to oppose to the tubular thin film.

Abstract: Sweetness improving agents capable of improving sweetness characteristics, in particular, aftertaste characteristics. More particularly, the sweetness improving agents contain as the active ingredient a yeast extract, in particular, one containing sodium 5?-inosinate and/or sodium 5?-adenylate, sodium 5?-guanylate; sodium 5?-uridylate and sodium 5?-cytidylate, each in an amount of 1 to 15% based on the weight of the yeast extract, and 1 to 20% of sodium glutamate.

Abstract: Sweetness improving agents capable of improving sweetness characteristics, in particular, aftertaste characteristics. More particularly, the sweetness improving agents contain as the active ingredient a yeast extract, in particular, one containing sodium 5′-inosinate and/or sodium 5′-adenylate, sodium 5′-guanylate; sodium 5′-uridylate and sodium 5′-cytidylate, each in an amount of 1 to 15% based on the weight of the yeast extract, and 1 to 20% of sodium glutamate.

Abstract: An easily adhesive polyamide film has been created from unstretched or uniaxially stretched non-heated polyamide film coated with a water-base coating mixture, whose main constituents are (A) water polyurethane resin containing acetylene glycol in which each carbon atom immediately adjacent to the triple-bonded carbon atom is replaced with a hydroxyl group and a methyl group, and/or an ethylene oxide addition product of the acetylene glycol; (B) a water-soluble polyepoxy compound; and (C) particles with an average diameter between 0.001 and 1.0 &mgr;m, of which the solid-content weight ratio is 98-30/2-70/0.1-10, the coating amount after stretching is between 0.005 and 0.030 g/m2, and the film is stretched in at least one direction and then heated. This newly invented film possesses good blocking resistance and excellent adhesiveness with print ink, laminate, and other coating mixtures, and is especially suitable for boiling sterilization, retort sterilization, and packaging of liquids.

Abstract: A feed and a method for relieving stress of livestock and poultry are provided. The feed for relieving stress containing yeast rich in glutathione or a mixture of glutathione and yeast is prepared and is fed to livestock and poultry to relieve their stress.

Abstract: A multi-layer film having an intermediate layer containing, as a main component, a mixture of two kinds of specific linear low density polyethylenes, and innermost and outermost layers containing, as a main component, a mixture of a specific high pressure process polyethylene, a specific ethylene-.alpha.-olefin copolymer and a specific linear low density polyethylene. The film has an automatic packaging machine applicability and an excellent heat sealability at low temperatures without defects such as lowering of tuck in property, stretchability in the transverse direction and film slipping property and blocking, and is suitably employed as films for stretch packaging and shrink packaging which are used for prepackaging of retailed goods, mainly foods.

Abstract: A heat shrinkable polyolefin laminate film having surface layers made of a crystalline polypropylene resin, and an intermediate layer made of an ethylene resin composition consisting essentially of a linear low density polyethylene and a syndiotactic polypropylene, which is stretched at least two times in the machine and transverse directions, respectively, and which does not cause lowering of the transparency even if recovered films are incorporated into the intermediate layer, is excellent in low temperature shrinkability and packaging machine applicability, and is suitably used as a heat shrinkable packaging material.

Abstract: A temperature sensitive water absorbing and discharging polymer composition having a predetermined selected temperature sensing point, which controls water absorbability, is obtained by polymerizing in an aqueous solution N-alkyl acrylamide derivatives with acrylic acid, alkali metal salts of acrylic acid or mixtures thereof, and diacetone acrylamide. The temperature sensitive water absorbing and water discharging polymer composition is modified to control the temperature sensing point and has a high water discharging and absorbing property above and below the temperature sensing point. The composition is utilized in a wide variety of sanitary materials such as paper diapers, soil improvers in agricultural and horticultural fields for plants and vegetables such as soil water supplying agents or soil water retaining agents, water proof sealing materials, sandbags, temperature sensors, chemical valves, solid-liquid separation materials and liquid concentrating materials.

Abstract: Apparatus for cooling a tubular thin film of thermoplastic resin in a melted state is described. The apparatus is capable of cooling the thin film from both the inside and the outside thereof while setting its diameter by interposing the film between the mandrel and an external circular coolant storage tank. The mandrel has a cylindrical shape and is connected with the lower side of a circular-shaped extruding die wherein the film is extruded downward from a circular slit in the die. The mandrel includes an air-injecting nozzle for injecting compressed air that maintains the shape of an upper bubble part of the thin film formed between the die and the mandrel. A coolant injecting nozzle which can inject the coolant toward the inner surface of the thin film is provided, the coolant injecting nozzle being formed into a single stage of circular slit or two or more stages of circular slits.

Abstract: A heat shrinkable polyethylene laminate film having an excellent applicability to packaging machines is obtained by forming an intermediate layer composed of a composition comprising as a main component a linear low density polyethylene (A) having a density of 0.910 to 0.930 g/cm.sup.3, a melt index of 0.1 to 0.8 g/10 minutes, a total heat of fusion of at least 135 mJ/mg and an endothermic area in the range of not lower than the melting point of at least 12% based on the total endothermic area, and forming innermost and outermost layers composed of a composition comprising as a main component a linear low density polyethylene (B) having a density of 0.910 to 0.930 g/cm.sup.3, a melt index of 0.8 to 5.0 g/10 minutes, a total heat of fusion of 135 to 160 mJ/mg and an endothermic area in the range of not lower than the melting point of at least 12% based on the total endothermic area.

Abstract: The heat shrinkable polypropylene film having an isotactic polypropylene layer as surface layers and a layer mainly composed of a syndiotactic polypropylene as an intermediate layer, having a shrinkage of not less than 25% at 100.degree. C. in the machine and transverse directions and being stretched at least two times in the machine and transverse directions, respectively. The film has a good packaging machine applicability and excellent propagation tear resistance, low temperature shrinkability and heat resistance, and is suitably used as a shrink packaging material.

Abstract: Apparatus for cooling a tubular thin film of thermoplastic resin in a melted state is described. The apparatus is capable of cooling the thin film from both the inside and the outside thereof while setting its diameter by interposing the film between the mandrel and an external circular coolant storage tank. The mandrel has a cylindrical shape and is connected with the lower side of a circular-shaped extruding die wherein the film is extruded downward from a circular slit in the die. The mandrel includes an air-injecting nozzle for injecting compressed air that maintains the shape of an upper bubble pan of the thin film formed between the die and the mandrel. A coolant injecting nozzle which can inject the coolant toward the inner surface of the thin film is provided, the coolant injecting nozzle being formed into a single stage of circular slit or two or more stages of circular slits.

Abstract: A process for producing N-monosubstituted acrylamides in high yields without forming by-products. The process comprises preparing a .beta.-dialkylamino-(methyl)propionic ester by the reaction of a (meth)-acrylic ester with a specified dialkylamine, converting the formed ester into an N-monosubstituted .beta.-dialkylamino(methyl)propionamide by the reaction thereof with a primary amine in the presence of sodium methoxide, and thermally decomposing the amide under a reduced pressure.

Abstract: Disclosed is a decorative laminates having a decorative paper and having a fine dot-like tone appearance. The decorative paper contains pigment(s) having a mean particle size of from 20 to 100 .mu.m and/or powdery colored fibers having a mean fiber length of from 50 to 2000 .mu.m as incorporated thereinto during papermaking. The fine dotlike tone appearance of the sheet is durable and is hardly worn away.

Abstract: Inorganic or organic particles have been used in the past as paper additives for hot-pressed forms to impart the pattern of granite thereto, but when these are boiled in hot water, for example, an uncountable number of small blisters result, lowering the commercial value of the product; however, according to the present invention it is possible to obtain an additive for forming patterns by grinding to desired particle sizes colored paper which has undergone water-resistance treatment with a thermosetting resin, and by selecting the color of the colored paper, a pattern may be selected as desired having spots of any desired color or size. With patterned paper manufactured by adding these paper additives during the paper manufacturing process, there is no occurrence of the above mentioned blisters and a clear pattern may be formed, and therefore hot-pressed forms utilizing have a natural granite image.

Abstract: A novel process for preparing an acrylic polymer containing a tertiary amino group which is not quaternized or not salt formed and having a high molecular weight, characterized by reacting an aqueous solution of an acrylic monomer containing a tertiary amino group with carbonic acid gas to generate an acrylic monomer containing a tertiary ammonium carbonate, homopolymerizing the obtained monomer or copolymerizing the obtained monomer with the other vinyl monomer copolymerizable with the obtained monomer to give a polymer containing a structural unit of a tertiary ammonium carbonate, and decarboxylating the polymer with heating and/or reducing the pressure is provided, and particularly, an article containing a water-soluble vinyl polymer which contains at least 5% by mole of the above-mentioned structural unit of a tertiary amino group and whose intrinsic viscosity [.eta.] is at least 1 dl/g is available as an excellent dewatering agent for sludge.

Abstract: According to the present invention, in overwrapping an object to be packaged, the object is wrapped with a packaging material in such a manner as to form a tubular shape, which packaging material is heat-sealable on both sides thereof and, as required, has heat shrinkability or gas-barrier properties; the overlap portion of the packaging material is heat-sealed in a lap seal fashion: and an opening portion formed at each end of the lap seal line is heat-sealed. The lap-heat-sealed portion of the package thus obtained has a satisfactory strength with liquid leakage prevented, and the unevenness of this portion is inconspicuous. Further, respective sealed portions at both ends of the package exhibit a good appearance because of the absence of a folded portion. The resulting package is excellent in seal strength and appearance and hence highly valuable on a commercial basis.