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315 results about "Curdling" patented technology

In cookery, curdling is the breaking of an emulsion or colloid into large parts of different composition through the physico-chemical processes of flocculation, creaming, and coalescence. Curdling is intentional and desirable in making cheese and tofu; unintentional and undesirable in making sauces and custards. Curdling occurs naturally in cows' milk, if it is left open to air for a few days in a warm environment. Milk is composed of several compounds, primarily fat, protein, and sugar. The protein in milk is normally suspended in a colloidal solution, which means that the small protein molecules float around freely and independently. These floating protein molecules refract light and contribute (with the suspended fat) to the white appearance of milk. Normally these protein molecules repel each other, allowing them to float about without clumping, but when the pH of their solution changes, they can attract one another and form clumps. This is what happens when milk curdles, as the pH drops and becomes more acidic, the protein (casein and others) molecules attract one another and become "curdles" floating in a solution of translucent whey. This clumping reaction happens more swiftly at warmer temperatures than it does at cold temperatures.

Preparation method of Chinese medicinal herbal fermented beancurd

The invention relates to a production technology of Chinese medicinal herbal health fermented beancurd. The preparation method comprises the following steps of: 1) immersing; 2) grinding; 3) filtering; 4) cooking; 5) curdling; 6) culturing uncongealed beancurd; 7) squeezing and slicing; 8) performing early fermentation; 9) preparing the following Chinese medicinal herbal raw materials in 150kg of beancurd raw body by weight: 100g of pepper, 150g of liquorice, 120g of anise, 120g of cinnamon, 100g of medlar, 150g of cumin, 100g of tsaoko amomum fruit, 100g of cardamom, 100g of esmodium, 150g of fructus amomi, 100g of schisandra chinensis, 100g of dried tangerine peel, 150g of mangnolia officinalis, 150g of dogwood, 150g of radix salviae miltiorrhizae, and 100g of galangal, mixing and grinding into fine powder for later use; 10) pickling fermentation materials in later stage of preparation; and 11) stirring and filling into a pot for later fermentation. The beancurd is naturally fermented and brewed, prepared form Chinese medicinal herbs, can be darker and mellower when the preservation period is longer, and has the advantages of unique flavor, rich nutrition, strong color and smell, stomach-invigoration and long-lasting aftertastes, and has more local characteristics of Hunan flavor.
Owner:邹聪终

Domestic bean curd manufacturing machine

The invention discloses a domestic bean curd manufacturing machine. Only through the domestic bean curd manufacturing machine, bean curd manufacturing processes of beating, filtration, curdling and molding are finished automatically and the mixing uniformity of soya-bean milk raw material liquid and a coagulating agent is fully improved in curdling so that molded bean curd has excellent quality and a good taste. The domestic bean curd manufacturing machine comprises a base, a soya-bean milk machine, a bean curd molding box, and a control circuit. A guiding mixing device for mixing soya-bean milk raw material liquid and a coagulating agent is arranged between the bean curd molding box and a cup body of the soya-bean milk machine. A coagulating agent outlet of a coagulating agent injection device is arranged in the guiding mixing device. The domestic bean curd manufacturing machine adopts a milk-dreg automatic separation technology suitable for a soya-bean milk machine, the guiding mixing device realizing automatic mixing of soya-bean milk and a coagulating agent, and the bean curd molding box capable of realizing automatic bean curd sub-packaging after curdling, so that bean curd obtained by the domestic bean curd manufacturing machine has a fine taste, a good flavor and high quality and uniform mixing of the soya-bean milk raw material liquid and the coagulating agent is realized. Therefore, the domestic bean curd manufacturing machine is suitable for manufacture of home-made bean curd, saves time, a cost and labor, and has safe and healthy characteristics.
Owner:深圳市北鼎晶辉科技有限公司

Preparation method for villi bean curd

The invention discloses a preparation method for a villi bean curd. The method comprises the following steps: soaking: adding water and sodium carbonate, of which the weight is 0.2%-0.3% of the weight of soybeans, soaking till the soybeans are swelled and two petals of the soybeans are split into flat plates; preparing slurry: grinding while adding a starch solution, grinding till no grain feel exists when the soybeans are touched by fingers, and separating soybean milk from bean dregs; cooking the slurry: quickly boiling the soybean milk to 100 DEG C and sieving cooked bean dregs; curdling: injecting a pouring starch solution, uniformly stirring and solidifying; squeezing and dividing blocks: squeezing the solidified slurry into a bean curd base; sealing for 3-4 hours during a cooling process at 40-30 DEG C and dividing into small blocks; and emulsifying: putting the naturally cooled small blocks of the bean curd base into a mucor strain suspension, standing for 4-5 days at 20-25 DEG C, and then growing uniform, fine and white villi on the surface of the bean curd. The whiteness of the villi of the prepared villi bean curd is approached to the whiteness of cotton; the grey inferior-quality products are few; the villi bean curd smells slight fragrant and is free from other peculiar flavors; during the preparation process, the quality of products is controllable and the taste is stable; and the villi bean curd is suitable for industrialized bath production.
Owner:HUANGSHAN WANAN FOOD

Separation making process of mixed slurry of raw slurry and boiled slurry of dried bean curd

ActiveCN101869148AImprove the mechanization processEfficient separationCheese manufactureFood scienceFiberDry bean
The invention relates to a separation making process of mixed slurry of raw slurry and boiled slurry of dried bean curd, which is characterized in that soaked soybeans are ground to form primary slurry; primary bean dregs and primary raw slurry are obtained by carrying out first separation on the primary slurry; the primary bean dregs are boiled by adding water, and secondary bean dregs and secondary boiled slurry are obtained by carrying out secondary separation; and after the primary raw slurry and the secondary boiled slurry are mixed and boiled, and the dried bean curd is prepared by carrying out the following processes of curdling, pressing forming and blanking drying. Proved by production practice, by adopting the separation process of the mixed slurry of the raw slurry and the boiled slurry, the mechanization degree of industrial production and the labor productivity can be enhanced, proteins in the soybeans are fully extracted, the residual protein in the bean dregs is lowered to be no more than 1.5 percent to enhance the yield and save resources, pectin protein, other proteins, carbohydrate and crude fibers in beancurd skins are efficiently separated, and the advantages of sufficient toughness, tension energy and mastication resistance of the dried bean curd are kept to ensure the product quality.
Owner:四川南溪庶人食品有限公司
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