A kind of production method of aseptic brick tofu

A production method and technology of aseptic bricks, applied in the field of soybean product processing, can solve problems such as unreasonable heat preservation molding methods and packaging forms, excessive solidification rate, and unstable quality, and achieve small footprint, high elasticity, and high-quality products. better quality effect

Active Publication Date: 2019-10-25
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to overcome the above-mentioned problems, the present invention provides a production method of aseptic brick tofu, which overcomes the problems of short shelf life and unstable quality of traditional tofu, and also overcomes the excessively fast solidification rate and poor molding of existing aseptic tofu preparations. Not good, and problems such as thermal insulation molding method and packaging form are unreasonable. After the slurry of the present invention is sterilized by UHT and the coagulant is sterilized by the film, it is filled and produced in an aseptic environment, which can realize product standardization and industrial production. , and high degree of automation, stable quality, and easy to carry; the prepared tofu has strong aroma, white and tender color, smooth cut surface, high elasticity, moderate hardness

Method used

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Embodiment 1

[0045] Embodiment 1: aseptic brick tofu production method

[0046] Including the following procedures:

[0047] 1 Preparation of slurry:

[0048] (1) Soybean screening: Select domestic high-quality non-GMO soybeans to remove impurities in soybeans, such as firewood, gravel, etc., as well as damaged, polluted and moldy soybeans;

[0049] (2) Soaking: Soak the screened soybeans according to a certain soybean water mass ratio, the soybean water mass ratio is 1:4, the temperature is 10°C, and the soaking time is 15 hours. Pulverization and dissolution of nutrients;

[0050] (3) Peeling: the soaked soybeans are peeled by a soybean peeling machine, and drained. The purpose of peeling is to easily pass through a mesh screen during subsequent filter residues to obtain soybean milk that meets the particle size requirements;

[0051] (4) Refining: Refining is an indispensable link in the production of tofu. The peeled soybeans are added to clean water according to a certain soybean-w...

Embodiment 2

[0065] Embodiment 2: the production method of aseptic brick tofu

[0066] The following process steps are adopted: 10kg of domestic high-quality high-protein soybeans are selected, air-selected to remove impurities, manually removed, add 3 times the volume of water and soak at 4°C for 20 hours, peel the skin with a peeler, drain the water, add 80kg of water was processed intermittently for 3 times with a soybean refiner at a speed of 10000r / min, each time for 2 minutes, with an interval of 0.5 minutes, and the raw pulp was pumped into a closed pulp cooking tank, kept at 100°C for 5 minutes, and the cooked pulp was Filtrate the material while it is hot. After the filtered slurry is cooled to room temperature quickly, it passes through a homogenizer with a homogenization pressure of 20MPa once. The homogenized slurry is sterilized by UHT at a temperature of 140°C for 3s. The slurry after UHT sterilization is poured into the aseptic tank. Coagulant MgCl 2 Composite with δ-GDL a...

Embodiment 3

[0067] Embodiment 3: the production method of aseptic brick tofu

[0068] The following process steps are adopted: 10kg of domestic high-quality high-protein soybeans are selected, air-selected to remove impurities, manually removed, add 3 times the volume of water and soak at 5°C for 18 hours, peel the skin with a peeler, drain the water, add 60kg of water was processed intermittently for 3 times with a soybean refiner at a speed of 8000r / min, each time for 5min, with an interval of 0.5min. Filtrate the material while it is hot. After the filtered slurry is cooled to room temperature quickly, it passes through a homogenizer with a homogenization pressure of 10MPa once. The homogenized slurry is sterilized by UHT at a temperature of 135°C for 5s. The slurry after UHT sterilization is poured into the aseptic tank. Coagulant MgCl 2 Composite with δ-GDL at a ratio of 1:2, the addition amount is 0.2% of the slurry, and the mass fraction of the coagulant solution is 15%. The coag...

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Abstract

The invention discloses a production method of aseptic brick tofu and belongs to the technical field of bean product processing. The method of the present invention comprises the following steps: screening soybeans, soaking, peeling, refining, boiling, separating and homogenizing soybean milk to obtain soybean milk that meets the requirements, injecting it into an aseptic tank after UHT high-temperature sterilization, and passing the coagulant through Dissolve to obtain a coagulant solution with a mass fraction of 15-20%, which is sterilized and filtered and poured into a sterile tank, and the soybean milk and the coagulant are mixed and kept uniform under a certain stirring method. Aseptic filling is carried out by using aluminum foil aseptic bricks, and a dry heat forming method is adopted to obtain aseptic brick tofu. The tofu produced by this method has a strong fragrance, white and tender color, smooth cut surface, high elasticity, and moderate hardness, which solves the problems that most tofu in the market have a short shelf life, and the shape of tofu is easily deformed by external force and is not easy to carry. Because the product is free of pressure, the yield is also significantly improved, and the standardization level and automation degree are high.

Description

technical field [0001] The invention relates to a production method of aseptic brick tofu, which belongs to the technical field of soybean product processing. Background technique [0002] my country's soybean food has a long history, coupled with my country's vast territory, a wide variety of soybean products with local characteristics have been formed. Most of these soybean products inherit traditional craftsmanship, including a lot of science and technology. However, there is a certain gap between the degree of industrialization and the tofu industry in Japan and the United States. [0003] Traditional tofu is made by the following processes: soaking beans, grinding, boiling, filtering residue, marinating, and pressing. This is the cooked pulp process to make tofu. There are also those who filter the residue first and then cook the pulp. This is a raw pulp process, which is often used in the production of small family workshops. In the industrial production of tofu, sin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23C20/02A23L11/45
CPCA23C20/025
Inventor 钱和成玉梁王永强冀珊郭岩
Owner JIANGNAN UNIV
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