摘要:
This invention provides a feed for fish farming which is excellent in terms of stability of feed supply and feed shelf life and which has excellent feed intake and feed efficiency.The feed for fish farming has an outer layer and an inner layer, characterized in that a composition constituting the outer layer has a breaking stress of 5×104 to 1×106 N/m2, a cohesiveness (30%) of 0.4 to 1.0, and a breaking strain of 30 to 80%. The feed for fish farming is characterized by having an outer layer constructed from a heat-induced gel which comprises a protein and/or a starch, and an inner layer comprising a composition which contains nutrient ingredients having fish meal and an oil as essential ingredients.
摘要:
A microbial oil comprising dihomo-γ-linolenic acid as a constituent fatty acid of an oil, the microbial oil has a content, in terms of a weight ratio of arachidonic acid relative to dihomo-γ-linolenic acid (arachidonic acid/dihomo-γ-linolenic acid) of less than 1/13. Preferably, the microbial oil has a triglyceride content of greater than or equal to 70% by weight, and a saturated fatty acid content of less than or equal to 40% by weight. Moreover, a lower alcohol ester of dihomo-γ-linolenic acid or a free fatty acid of dihomo-γ-linolenic acid obtained from the microbial oil is provided.
摘要:
To provide a transformation method for producing a stramenopile organism having an improved unsaturated fatty acid production capability by disrupting a gene of the stramenopile organism or inhibiting the expression of the gene in a genetically engineering manner. [Solution] A method for transforming a stramenopile organism, which comprises disrupting a gene of the stramenopile organism or inhibiting the expression of the gene in a genetically engineering manner, and which is characterized in that the stramenopile organism is selected from Thraustochytrium aureum, Parietichytrium sarkarianum, Thraustochytrium roseum and Parietichytrium sp. and the gene to be disrupted or of which the expression is to be inhibited is a gene associated with the biosynthesis of a fatty acid.
摘要:
A method of controlling proliferation of fish parasites comprising the administration of 1 to 50 mg/kg fish body weight/day of an inhibitor of folate synthesis and/or an inhibitor of folate activation to fish continuously for 1 to 2 weeks. Using a combination preparation composed of an inhibitor of folate synthesis and an inhibitor of folate activation is preferable, and a sulfonamide is preferable for the inhibitor of folate synthesis. A dihydrofolate reductase inhibitor, a folate antagonist, etc., can be used as the inhibitor of folate activation. The antiparasitic agent is able to exterminate fish parasites via oral administration. It is particularly effective against parasites belonging to the ciliate group among fish parasites.
摘要:
The present invention provides a process for concentrated PUFA oil, characterized in that alcoholysis reaction using lipase is carried out in the presence of a small amount of water and at least one compound as an additive selected from magnesium oxide, magnesium hydroxide, calcium oxide and calcium hydroxide, and then separation is conducted to obtain a glyceride fraction.
摘要:
To provide a transformation method for producing a stramenopile organism having an improved unsaturated fatty acid production capability by disrupting a gene of the stramenopile organism or inhibiting the expression of the gene in a genetically engineering manner. [Solution] A method for transforming a stramenopile organism, which comprises disrupting a gene of the stramenopile organism or inhibiting the expression of the gene in a genetically engineering manner, and which is characterized in that the stramenopile organism is selected from Thraustochytrium aureum, Parietichytrium sarkarianum, Thraustochytrium roseum and Parietichytrium sp. and the gene to be disrupted or of which the expression is to be inhibited is a gene associated with the biosynthesis of a fatty acid.
摘要:
It is possible to provide an excellent salty taste enhancer is provided that can compensate for insufficient salty taste when attempting to reduce salt content in a food. A salty taste enhancer consisting of a mixture of an enzymatic decomposition product of an animal protein and an enzymatic decomposition product of a plant protein. A salty taste enhancer in which the enzymatic decomposition products are treated with a protein-hydrolyzing enzyme and/or a nucleic acid-hydrolyzing enzyme. A salty taste enhancer in which the animal protein is a fish or shellfish extract and the plant protein is a soy bean protein. A salty taste enhancer in which a basic amino acid, and especially arginine, is further added to the salty taste enhancer. A salty taste enhancer to which potassium chloride is further added. A salty taste enhancer obtained by rendering the salty taste enhancer mildly acidic. A method for producing these salty taste enhancers, a method for enhancing a salty taste by using these salty taste enhancers, and a food or drink that contains these salty taste enhancers.
摘要:
To an organic substance having a double bond such as a polyunsaturated fatty acid was added an antioxidative component containing an antioxidative sesame component and ascorbic acid or an ascorbyl fatty acid ester.The above method provides a composition containing an organic substance having a double bond exhibiting enhanced oxidative stability. Particularly, it extremely improves oxidative stability of fat and oil which contains polyunsaturated fatty acid. General-purpose refined fish oil which is easy to handle can be provided for food, medicine or feed uses.
摘要:
[PROBLEMS] To provide a fat-and-oil in which the content of docosahexaenoic acid is increased.[MEANS FOR SOLVING PROBLEMS] A process for producing highly unsaturated fatty acids comprising culturing a stramenopile capable of producing highly unsaturated fatty acids in a culture medium containing an inhibitor for fatty acid desaturases; fats-and-oils in which the content of highly unsaturated fatty acids, particularly docosahexaenoic acid produced by the relevant method, is increased. A method for enhancing the productivity of highly unsaturated fatty acids in stramenopiles, comprising culturing a stramenopile in a culture medium containing an inhibitor for fatty acid desaturases; stramenopiles having the enhanced productivity of highly unsaturated fatty acids, generated by the relevant method. Particularly, the process for producing highly unsaturated fatty acids, the method for enhancing the productivity of highly unsaturated fatty acids, and the stramenopile having the enhanced productivity of highly unsaturated fatty acids, wherein the stramenopile is a microorganism classified into Labyrinthulea.