CN115137043A - Bean curd making method - Google Patents

Bean curd making method Download PDF

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Publication number
CN115137043A
CN115137043A CN202210877829.4A CN202210877829A CN115137043A CN 115137043 A CN115137043 A CN 115137043A CN 202210877829 A CN202210877829 A CN 202210877829A CN 115137043 A CN115137043 A CN 115137043A
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CN
China
Prior art keywords
bean curd
cattail
bag
soybean milk
soybean
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Pending
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CN202210877829.4A
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Chinese (zh)
Inventor
张艳柏
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Kunshan Liupanyuecaobao Bean Products Co ltd
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Kunshan Liupanyuecaobao Bean Products Co ltd
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Priority to CN202210877829.4A priority Critical patent/CN115137043A/en
Publication of CN115137043A publication Critical patent/CN115137043A/en
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L11/00Pulses, i.e. fruits of leguminous plants, for production of food; Products from legumes; Preparation or treatment thereof
    • A23L11/40Pulse curds
    • A23L11/45Soy bean curds, e.g. tofu
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/015Inorganic compounds
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/03Organic compounds
    • A23L29/035Organic compounds containing oxygen as heteroatom
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Agronomy & Crop Science (AREA)
  • Botany (AREA)
  • Inorganic Chemistry (AREA)
  • Beans For Foods Or Fodder (AREA)

Abstract

The invention relates to a food technology, in particular to a bean curd making method. Soaking soybean, pulverizing, filtering, decocting to obtain soybean milk, adding coagulator into the soybean milk, coagulating, and pressing in herba Typhae bag to obtain bean curd. The coagulated bean curd is added into the cattail bag, when the bean curd is pressed into the bean curd by external force, the cattail is softened by the external force at the moment, the cattail body absorbs moisture in the bean curd, when the temperature of the bean curd is reduced to below 80 ℃, the bean curd can absorb the moisture of the cattail body, the moisture enters the bean curd, the cattail can absorb magnesium chloride in the bean curd, the magnesium chloride in the bean curd can be lost, and at the moment, the bean curd contains the magnesium chloride which also has the softened water of the cattail, so that the bean curd and the cattail are perfectly combined, the nutritional value of the bean curd is improved, the bean curd has great benefits for a human body, the taste is more delicate, the taste is more delicious, and the normal juice and original taste are achieved.

Description

Bean curd making method
Technical Field
The invention relates to a food technology, in particular to a bean curd making method.
Background
The bean curd is produced through soaking soybean to soften soybean, grinding the soaked soybean into milk, filtering to separate bean dregs to obtain soybean milk, steaming the soybean milk, adding coagulant, etc. to gelatinize soybean protein and form bean curd.
Common coagulants for coagulating bean curd include brine (magnesium chloride), gypsum, gluconolactone, etc.; the bean curd made of different coagulants has different tastes, the bean curd made of brine is most popular with people, but the excessive intake of magnesium is harmful to human bodies, and the requirements of taste and health are difficult to meet simultaneously.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides the bean curd preparation method, which reduces the content of magnesium in the marinated bean curd and ensures the taste of the bean curd.
The technical scheme adopted by the invention is as follows: a method for preparing bean curd comprises soaking semen glycines, pulverizing, filtering, decocting to obtain soybean milk, adding coagulator into the soybean milk, coagulating, and pressing into herba Typhae bag to obtain bean curd.
Furthermore, the cattail bag is woven from cattail, the cattail is aired, rolled into strips, woven into a cylinder shape, and cleaned and sterilized for later use.
Furthermore, the opening at the upper end of the cattail bag, the ratio of the diameter of the opening at the upper end of the cattail bag, the diameter of the bottom and the height of the cattail bag is 95.
Further, 17.5kg of soybeans are added with clear water with the weight 4.4-5.5 times of that of the soybeans for soaking, then the soybeans are crushed, filtered and boiled to obtain soybean milk, 3.1-3.5kg of coagulator is added into the soybean milk, and the soybean milk is placed into a cattail bag for pressing after coagulation to obtain the bean curd.
Further, gradually adding a coagulant into the soybean milk within 4-5 minutes when the soybean milk is cooled to 75-85 ℃, uniformly stirring, and standing for 10-15 minutes;
solidifying, placing into herba Typhae bag, and pressing at 50-80 deg.C under 0.4 Mpa.
Further, the coagulant is composed of the following components: 450-550g of anhydrous magnesium chloride, 100-180g of glucose, 0.24-0.31g of gluconolactone and 1300-1650g of water.
Further, the boiling temperature of the soybean milk is 100 ℃.
Furthermore, the bean curd in the cattail bag is pressed by the straw bag.
THE ADVANTAGES OF THE PRESENT INVENTION
The invention has cattail bag pressed bean curd, the solidified bean curd is added into the cattail bag, when the bean curd is pressed into the molded bean curd by external force, the cattail is softened through the temperature at this time, the cattail body absorbs the moisture in the bean curd, when the temperature of the bean curd is reduced to be below 80 ℃, the bean curd can absorb the moisture of the cattail body, the moisture enters the bean curd, the cattail simultaneously absorbs the magnesium chloride component in the bean curd, the magnesium chloride component in the bean curd can be lost, at this time, the magnesium chloride component in the bean curd also has the moisture of the softened cattail, so the bean curd and the cattail are perfectly combined, the nutritional value of the bean curd is improved, the bean curd has great benefits to a human body, the taste is more delicate, the taste is more delicious, and the original taste and flavor is achieved. The bean curd has better taste and lower magnesium content than common brine due to the adoption of the coagulant formula.
Detailed Description
To make the objects, technical solutions and advantages of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention are described below clearly, and it is obvious that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
Example 1: preparation of cattail bag
The cattail is a plant growing in the fresh water, has good medicinal value, is manually salvaged from the water when growing to a certain length, is naturally dried, is rolled into a strip shape by an artificial stone roller, is manually woven into a cylindrical shape to form the cattail bag, is compactly woven, has the specifications of 95cm at the upper opening, 85cm at the lower opening and 55cm at the height, is larger than the bottom opening, is cleaned by clear water, is well cleaned by a high-temperature disinfection program, can be used as a pressing container of bean curd, can reduce a plurality of bean curd manufacturing and forming processes, and is more convenient and fast.
Example 2: brine optimization
The brine bean curd, namely the bean curd is prepared by brine, namely magnesium chloride, and also contains a small amount of magnesium sulfate and sodium chloride, and a better brine formula is prepared by long-time production, processing, operation and practice,
Figure BDA0003762913060000021
3 brine recipes with different contents are given in the recipes 1-3, the recipe 1 which is selected for eating a tender food, the recipe 3 which is selected for eating a tender food and the recipe 2 which is selected for trading are preferred, but the actual taste is not different.
Thus, the proportions of formulation 2 were actually used, namely 500g of halogen tablet (anhydrous magnesium chloride), 140g of glucose, 0.27g of gluconolactone, 1500g of clear water; when making bean curd, a pack of bean curd is made from 17.5kg of dried soybean, and 3.3kg of bittern is added for coagulation.
Example 3: bean curd making process
17.5kg of soybeans are soaked in clear water with the weight 5 times (87.5 kg) of that of the soybeans to be softened, then the soybeans are crushed to about 200 meshes, bean dregs are filtered out, the soybean milk is boiled at 100 ℃ to obtain soybean milk, 3.3kg of the coagulant in the formula 2 in the embodiment 2 is gradually added within 4-5 minutes when the soybean milk is cooled to about 80 ℃, the coagulant needs to be continuously stirred in the adding process, then the soybean milk is kept stand for 10-15 minutes to be coagulated, and then the soybean milk is placed in a cattail bag to be pressed to obtain the bean curd.
In the embodiment, 4 different coagulation times are selected to be 10 min, 13 min, 15 min and 18min respectively; compared with the coagulation effect, the soybean milk is fully coagulated within 10-15 minutes, and the temperature is reduced to about 80 ℃, so that the soybean milk is suitable for pressing; and about 18 minutes, the bean curd formed subsequently is not very tough because the bean curd is not pressed in time after solidification.
The bean curd is placed into a cattail bag for pressing after solidification, the grass bag is adopted for pressing, the pressing is more convenient, the temperature of the bean curd is reduced along with the ambient temperature in the pressing process, the temperature can be gradually reduced to 50-80 ℃ according to regional differences, the temperature is lower in northern regions in winter, the indoor temperature needs to be ensured, and the influence of too low temperature on the taste of the bean curd is avoided.
The pressing of the cattail bag and the marinated bean curd is also very exquisite, the weight pressure is not too heavy or too light in the pressing process, the pressing pressure is 0.4Mpa, the weight pressure is controlled to be between 55kg and 60kg, and the pressing time of one bag of bean curd is 17 min; after a straw bag of bean curd is pressed and formed, the weight of the bag of bean curd is about 50kg after the pressing is finished;
in the embodiment, 4 different pressing times are selected to be 15 min, 17min, 20min and 23min respectively; compared with the taste of the bean curd after compression molding, the bean curd after 15 minutes is slightly poor in chewiness, the taste and flavor of the bean curd after 17 and 20 minutes are optimal, the taste of the bean curd after 23 minutes is poor, and the bean flavor is reduced; the following conclusions were made:
therefore, the pressing time of the one-pack bean curd is not too long or too short; the quality of the bean curd can be directly influenced by controlling the time for pressing, the time is too low, the water partial pressure of the bean curd cannot be removed, the chewiness of the bean curd can be influenced, the taste of the bean curd can be directly influenced after the time is exceeded, and the bean fragrance of the bean curd is reduced.
Comparative example 1:
3.3kg of coagulant in the formula 2 in the example 3, 15 minutes of coagulation time and 17 minutes of pressing time are compared, the bean curd pressed by the cattail grass bag has tender mouthfeel compared with the bean curd obtained by a common pressing method, and the magnesium content in the water discharged by the cattail grass bag is far higher than that discharged by the common pressing by detecting the water discharged by the pressing.
And (4) analyzing results:
in the pressing process, the cattail can reduce the content of magnesium chloride in the bean curd, the magnesium chloride is used as a coagulator of the soybean milk, and is coagulated into the bean curd by the magnesium chloride at the temperature of about 80 ℃ of the soybean milk, and the temperature and the water content of the bean curd are the maximum at this time; meanwhile, the solidified bean curd is added into the cattail bag, when the bean curd is pressed into the bean curd by external force, the cattail is softened through the temperature, the cattail body absorbs moisture in the bean curd, when the temperature of the bean curd is reduced to be below 80 ℃, the bean curd can absorb the water of the cattail body, the moisture enters the bean curd, the cattail can absorb magnesium chloride in the bean curd, the magnesium chloride in the bean curd can be lost, and at the moment, the bean curd contains magnesium chloride which also has the softened water of the cattail, so that the bean curd and the cattail are perfectly combined, the nutritional value of the bean curd is improved, the bean curd has great benefits for a human body, the taste is more delicate, the taste is more delicious, and the cattail is original in taste and flavor.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1. A bean curd making method is characterized by comprising the following steps: soaking soybean, pulverizing, filtering, decocting to obtain soybean milk, adding coagulator into the soybean milk, coagulating, and pressing in herba Typhae bag to obtain bean curd.
2. A method for preparing bean curd according to claim 1, wherein: the cattail bag is woven by cattail, and the cattail is rolled into strips after being dried, then is woven into a cylinder shape, and is cleaned and disinfected for later use.
3. The method for preparing tofu according to claim 2, characterized in that: the upper end of the cattail bag is provided with an opening, and the ratio of the diameter of the opening at the upper end of the cattail bag to the diameter and the height of the bottom of the cattail bag is 95.
4. A method for preparing bean curd according to claim 1, wherein: soaking 17.5kg of soybean in clear water 4.4-5.5 times of soybean in weight to soften the soybean, pulverizing, filtering, decocting to obtain soybean milk, adding 3.1-3.5kg of coagulant into the soybean milk, coagulating, and pressing into herba Typhae bag to obtain bean curd.
5. A method for making tofu according to claim 4, wherein: gradually adding a coagulant into the soybean milk within 4-5 minutes when the soybean milk is cooled to 75-85 ℃, uniformly stirring, and standing for 10-15 minutes;
solidifying, pressing in a bag at 50-80 deg.C under 0.4 Mpa.
6. A method of making tofu according to any one of claims 1, 4, and 5, wherein the method comprises the steps of: the coagulant consists of the following components:
450-550g of anhydrous magnesium chloride, 100-180g of glucose, 0.24-0.31g of gluconolactone and 1300-1650g of water.
7. A method for preparing bean curd according to claim 1, wherein: the boiling temperature of the soybean milk is 100 ℃.
8. A method for preparing bean curd according to claim 1, wherein: the bean curd in the cattail bag is pressed by the straw bag.
CN202210877829.4A 2022-07-25 2022-07-25 Bean curd making method Pending CN115137043A (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1685963A (en) * 2005-06-07 2005-10-26 太原理工大学 Manufacturing method of pure natural tofu food
JP2007274962A (en) * 2006-04-06 2007-10-25 Ryoen:Kk Method for producing bittern used for producing bean curd
CN103621663A (en) * 2013-11-05 2014-03-12 苏州金记食品有限公司 Marinated boxed bean curd and preparation method thereof
CN103891914A (en) * 2014-03-25 2014-07-02 深圳市福荫食品集团有限公司 Novel marinated Tofu coagulating agent and self-coagulated marinated Tofu production method
CN105707281A (en) * 2016-03-09 2016-06-29 包宇青 Bean curd composite coagulation agent and preparation method and application thereof
CN105815457A (en) * 2016-03-24 2016-08-03 镇远乐豆坊食品有限公司 Preparation method of bean curds

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1685963A (en) * 2005-06-07 2005-10-26 太原理工大学 Manufacturing method of pure natural tofu food
JP2007274962A (en) * 2006-04-06 2007-10-25 Ryoen:Kk Method for producing bittern used for producing bean curd
CN103621663A (en) * 2013-11-05 2014-03-12 苏州金记食品有限公司 Marinated boxed bean curd and preparation method thereof
CN103891914A (en) * 2014-03-25 2014-07-02 深圳市福荫食品集团有限公司 Novel marinated Tofu coagulating agent and self-coagulated marinated Tofu production method
CN105707281A (en) * 2016-03-09 2016-06-29 包宇青 Bean curd composite coagulation agent and preparation method and application thereof
CN105815457A (en) * 2016-03-24 2016-08-03 镇远乐豆坊食品有限公司 Preparation method of bean curds

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
杨淑媛等: "《新编大豆食品》", 中国商业出版社 *
混剪集中营: "农村这种野草长得像香肠,城里人拿它当宝,农民却不会多瞧一眼", vol. 1, pages 133 - 135, Retrieved from the Internet <URL:https://baijiahao.baidu.com/s?id=1612101638140263826&wfr=spider&for=pc> *

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Application publication date: 20221004

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