The present invention addresses the problem of providing a novel production method of a plant protein food. This method comprises treating a starting plant protein material with both of a lipase and a protein deamidase (for example, protein glutaminase) to thereby improve the flavor of a plant protein food.

The invention relates to a process for preparing a plant protein containing liquid from a defatted oleaginous plant, comprising the following steps: a) Forming a suspension of the defatted oleaginous plant in an aqueous solvent; b) Enzymatically treating the suspension obtained in step a), with the following enzymes: — at least one protein glutaminase for the solubilisation in said aqueous solvent of proteins contained in the defatted oleaginous plant, — at least one transglutaminase, said enzymes being used successively or simultaneously; c) Recovering the plant protein containing liquid obtained in step b). The Invention also relates to a plant protein containing liquid, obtained according to said process and a protein-rich food product, comprising the plant protein containing liquid obtained according to the above process.

The invention relates to preparation of fermented food products, including dairy or dairy analogue products, with Pichia kluyveri and lactic acid bacteria in the presence of carbohydrate(s) which is sucrose, fructose, glucose or mixtures thereof. Fermentation of such products can be made using a starter culture composition comprising Pichia kluyveri strain(s) and lactic acid bacteria strain(s). The composition optionally comprises carbohydrate(s) which is sucrose, fructose and/or glucose.

The invention relates to preparation of fermented food products, including dairy or dairy analogue products, with Pichia kluyveri and lactic acid bacteria in the presence of carbohydrate(s) which is sucrose, fructose, glucose or mixtures thereof. Fermentation of such products can be made using a starter culture composition comprising Pichia kluyveri strain(s) and lactic acid bacteria strain(s). The composition optionally comprises carbohydrate(s) which is sucrose, fructose and/or glucose.

The present invention, which is a food composition for alleviating diabetes that contains Schisandra chinensis fruit water and bean juice as active ingredients, has a high inhibitory activity against α-glucosidase and prevents a rise of the blood sugar after meals, thereby alleviating diabetes. The food composition for alleviating diabetes can be prepared in different forms, such as soy milk, powdered soy milk, other forms of soy milk, or processed bean curd, and used in the preparation of health functional foods for blood sugar control or foods for diabetics according to the Special Purpose Foods of the general foods. In addition, the food composition for alleviating diabetes according to the present invention, when further containing a saccharified material of grain, maintains viscosity similar to that of regular soy milk by preventing agglomeration of the liquid soy milk and improves sensory properties, so it can be suitable for use in beverages such as soy milk or other forms of soy milk.

The present invention, which is a food composition for alleviating diabetes that contains Schisandra chinensis fruit water and bean juice as active ingredients, has a high inhibitory activity against α-glucosidase and prevents a rise of the blood sugar after meals, thereby alleviating diabetes. The food composition for alleviating diabetes can be prepared in different forms, such as soy milk, powdered soy milk, other forms of soy milk, or processed bean curd, and used in the preparation of health functional foods for blood sugar control or foods for diabetics according to the Special Purpose Foods of the general foods. In addition, the food composition for alleviating diabetes according to the present invention, when further containing a saccharified material of grain, maintains viscosity similar to that of regular soy milk by preventing agglomeration of the liquid soy milk and improves sensory properties, so it can be suitable for use in beverages such as soy milk or other forms of soy milk.

The present invention addresses the problem of creating an effective means for preventing the coagulation of a plant milk under high temperature conditions. To solve this problem, a plant milk is treated with a protein deamidase to thereby prevent the coagulation of the plant milk in the case of adding to a hot liquid beverage, a hot liquid food, etc.

The present invention provides a method for manufacturing a butter-like food derived from vegetable milk, the method including: separately heating a vegetable milk and a vegetable processed fat to a temperature equal to or higher than the melting point of the vegetable processed fat; adding the heated vegetable processed fat to the heated vegetable milk and performing emulsification; cooling a vegetable milk emulsion obtained by the emulsification; subjecting a creamy substance obtained by the cooling to churning or cavitation, and separating the creamy substance into an aqueous phase and an oil phase; and kneading and homogenizing an oil phase solid obtained by removing the aqueous phase.

A plant protein-containing liquid composition that is not aggregated and/or solidified by an acid and that is satisfactory in terms of a feeling on the tongue, a feeling of food or drink going down the throat, and a flavor, even if such composition contains a plant protein at high concentration is provided. The plant protein-containing liquid composition has the protein content in the liquid composition of 6% to 17% by mass, the mass ratio of the protein content to the lipid content of 10:0.7 to 10:5.5, the Brix value of 10% or higher, and the dietary fiber content in the liquid composition of 3% by mass or lower. The viscosity of the plant protein-containing liquid composition measured with a B type viscometer is at least one of 4,600 mPa.Math.s or lower at 20° C., 5,000 mPa.Math.s or lower at 5° C., and 3,400 mPa.Math.s or lower at 50° C.

A plant protein-containing liquid composition that is not aggregated and/or solidified by an acid and that is satisfactory in terms of a feeling on the tongue, a feeling of food or drink going down the throat, and a flavor, even if such composition contains a plant protein at high concentration is provided. The plant protein-containing liquid composition has the protein content in the liquid composition of 6% to 17% by mass, the mass ratio of the protein content to the lipid content of 10:0.7 to 10:5.5, the Brix value of 10% or higher, and the dietary fiber content in the liquid composition of 3% by mass or lower. The viscosity of the plant protein-containing liquid composition measured with a B type viscometer is at least one of 4,600 mPa.Math.s or lower at 20° C., 5,000 mPa.Math.s or lower at 5° C., and 3,400 mPa.Math.s or lower at 50° C.