Processing method of selenium-enriched bean product

Abstract

The invention relates to a processing method of a selenium-enriched bean product, which comprises the following specific steps: soaking: grinding into thick liquid; boiling the soybean milk; soybean milk; bean products; performing drying treatment; preparing a selenium-rich solution; preparing a selenium-enriched bean product; selenium-rich soybean milk; a selenium-rich bean product; performing drying treatment; and forming a product. According to the invention, the selenium-rich extract is added in the production process of the bean product, so that the nutritional value of the bean product is improved, and the selenium-rich bean product also has a certain health-care function as selenium has various physiological functions. Long-term eating of the selenium-rich bean product can help to prevent cardiovascular diseases, cancers and other diseases, along with continuous increasing of the attention degree of consumers on health and nutrition, the market demand of the selenium-rich bean product is continuously increased, the processing method can meet the demand of the market on the selenium-rich bean product, and the market competitiveness of the product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of soy product production, and specifically to a processing method for selenium-enriched soy products. Background Art

[0002] Existing processing methods for soy products mainly include steps such as soaking, grinding, and boiling the soybeans, but these methods do not involve how to increase the selenium content in soy products. Selenium is an essential trace element for the human body and has various physiological functions such as antioxidant, anti-cancer, and immune-enhancing effects. Therefore, there is an urgent need for a processing method that can increase the selenium content in soy products. Summary of the Invention

[0003] In order to solve the problems of the existing technology, the present invention provides a processing method for selenium-enriched soy products.

[0004] In order to solve the above technical problems, the present invention is realized through the following technical solutions: A processing method for selenium-enriched soy products, the specific steps are as follows:

[0005] Step 1, soaking: Remove impurities from the soybeans, select soybeans with plump grains, and soak them in clean water for 8 - 12 hours at room temperature until the soybeans absorb water and swell.

[0006] Step 2, grinding: After draining the soaked soybeans, add an appropriate amount of water and use a grinder to perform grinding treatment.

[0007] Step 3, boiling: Pour the ground soybean slurry into a pot and heat it to boiling to remove the bean smell and cause the protein to undergo thermal denaturation.

[0008] Step 4, soy products: Pour the soy milk into a pot for making tofu skin or a pot for making bean curd sticks to make tofu skin or bean curd sticks, and thus obtain tofu skin or bean curd sticks.

[0009] Step 5, air-dry or dry the tofu skin or bean curd sticks.

[0010] Step 6, prepare the selenium-enriched solution: First, add 10% of drinking water or ethanol to the selenium-enriched extract and dissolve it evenly, and then add 90% of drinking water or ethanol and stir evenly to make the selenium-enriched solution.

[0011] Step 7, make selenium-enriched soy products: Increase the selenium content in the soy products by evenly spraying the prepared selenium-enriched solution on the surface of the tofu skin or bean curd sticks or by soaking the tofu skin or bean curd sticks in the selenium-enriched solution.

[0012] Step 8, air-dry or dry the selenium-enriched tofu skin or selenium-enriched bean curd sticks, and then package them to form products.

[0013] Preferably, an appropriate amount of water can be added during the grinding process in step two to maintain a moderate concentration of the soybean slurry.

[0014] Preferably, the selenium-rich extract in step six is pre-prepared and obtained by extracting and purifying from selenium-containing natural plants.

[0015] Preferably, the packaging in step eight uses food-grade packaging bags to protect the product from external contamination.

[0016] Preferably, the content of the selenium-rich extract in the soy products in step eight is: ≥0.15 mg / kg.

[0017] The beneficial effects of the present invention are as follows:

[0018] 1. By adding selenium-rich extract during the production process of soy products, the present invention improves the nutritional value of soy products. Since selenium has various physiological functions, selenium-rich soy products also have certain health care functions. Long-term consumption of selenium-rich soy products can help prevent the occurrence of diseases such as cardiovascular diseases and cancers. With the increasing attention of consumers to health and nutrition, the market demand for selenium-rich soy products is also increasing. The processing method of the present invention can meet the market demand for selenium-rich soy products and improve the market competitiveness of the products;

[0019] 2. The processing method of the present invention is an improvement based on the traditional soy product processing technology, which is simple and easy to operate and suitable for large-scale production. At the same time, since the traditional process is not changed, the production cost will not increase significantly, which is beneficial to the production and sales of enterprises. Specific Embodiments

[0020] Example 1: A processing method of selenium-rich soy products, characterized in that the specific steps are as follows:

[0021] Step 1, soaking: Remove impurities from the soybeans, select soybeans with plump grains, soak them in clean water, and soak them at room temperature for 10 hours until the soybeans absorb water and swell;

[0022] Step 2, grinding: After draining the soaked soybeans, add an appropriate amount of water and use a grinder for grinding treatment. An appropriate amount of water can be added during the grinding process to maintain a moderate concentration of the soybean slurry;

[0023] Step 3, boiling the slurry: Pour the ground soybean slurry into a pot and heat it to boiling to remove the bean smell and cause protein thermal denaturation;

[0024] Step 4, soy products: Pour the soy milk into a pot for making bean curd sheets, and make bean curd sheets to obtain bean curd sheets;

[0025] Step 5, drying the selenium-rich bean curd sheets;

[0026] Step 6, preparing the selenium-rich solution: The selenium-rich extract is first added with 10% of drinking water and dissolved evenly, and then 90% of drinking water is added and stirred evenly to make the selenium-rich solution. The selenium-rich extract is prepared in advance and obtained by extracting and purifying from selenium-containing natural plants;

[0027] Step 7, making selenium-rich soy products: The prepared selenium-rich solution is used to increase the selenium content of soy products by spraying it evenly on the surface of yuba or soaking yuba in the selenium-rich solution;

[0028] Step 8, drying the selenium-rich yuba. The content of the selenium-rich extract in the soy products is ≥0.15 mg / kg, and then it is packaged to form a product. The packaging uses a food-grade packaging bag to protect the product from external pollution.

[0029] Example 2: A processing method for selenium-rich soy products, the specific steps are as follows:

[0030] Step 1, soaking: Remove impurities from the soybeans, select plump soybeans, and soak them in clean water at room temperature for 12 hours until the soybeans absorb water and swell;

[0031] Step 2, grinding: After draining the soaked soybeans, add an appropriate amount of water and use a grinder to grind the soybeans. During the grinding process, an appropriate amount of water can be added to keep the concentration of the soybean slurry moderate;

[0032] Step 3, boiling the slurry: Pour the ground soybean slurry into a pot and heat it to boiling to remove the bean smell and cause protein thermal denaturation;

[0033] Step 4, soy products: Pour the soy milk into the pot for making yuba to make yuba, and then obtain yuba;

[0034] Step 5, drying the yuba;

[0035] Step 6, preparing the selenium-rich solution: The selenium-rich extract is first added with 10% of ethanol and dissolved evenly, and then 90% of ethanol is added and stirred evenly to make the selenium-rich solution. The selenium-rich extract is prepared in advance and obtained by extracting and purifying from selenium-containing natural plants;

[0036] Step 7, making selenium-rich soy products: The prepared selenium-rich solution is used to increase the selenium content of soy products by spraying it evenly on the surface of the yuba or soaking the yuba in the selenium-rich solution;

[0037] Step 8, drying the selenium-rich yuba. The content of the selenium-rich extract in the soy products is ≥0.15 mg / kg, and then it is packaged to form a product. The packaging uses a food-grade packaging bag to protect the product from external pollution.

Claims

1. A processing method of selenium-rich soy products, characterized in that The specific steps are as follows: Step 1, soaking: Remove impurities from the soybeans, select plump soybeans, and soak them in clean water for 8 - 12 hours at room temperature until the soybeans absorb water and swell. Step 2, grinding: After draining the soaked soybeans, add an appropriate amount of water and use a grinder for grinding. Step 3, boiling: Pour the ground soybean slurry into a pot and heat it to boiling to remove the bean smell and cause protein thermal denaturation. Step 4, soy products: Pour the soy milk into a pot for making tofu skin or a pot for making fuzhu, and make tofu skin or fuzhu, thus obtaining tofu skin or fuzhu. Step 5, dry or bake the tofu skin or fuzhu. Step 6, prepare the selenium - rich solution: First, add 10% of drinking water or ethanol to the selenium - rich extract and dissolve it evenly, and then add 90% of drinking water or ethanol and stir evenly to make the selenium - rich solution. Step 7, make selenium - rich soy products: Increase the selenium content of the soy products by spraying the prepared selenium - rich solution evenly on the surface of the tofu skin or fuzhu or by soaking the tofu skin or fuzhu in the selenium - rich solution. Step 8, dry or bake the selenium - rich tofu skin or selenium - rich fuzhu, and then package it to form a product.

2. The processing method of a selenium-rich soy product according to claim 1, wherein: In step 2, an appropriate amount of water can be added during the grinding process to keep the concentration of the soybean slurry moderate.

3. The processing method of a selenium-rich soy product according to claim 1, characterized in that: The selenium - rich extract in step 6 is prepared in advance and obtained by extracting and purifying from selenium - containing natural plants.

4. The processing method of a selenium-rich soy product according to claim 1, characterized in that: In step 8, the packaging uses a food - grade packaging bag to protect the product from external pollution.

5. The processing method of a selenium-rich soy product according to claim 1, characterized in that: The content of the selenium - rich extract in the soy products in step 8 is: ≥0.15mg / kg.