CN116326727A - Alkaline dried bean curd and preparation process thereof - Google Patents

Alkaline dried bean curd and preparation process thereof Download PDF

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Publication number
CN116326727A
CN116326727A CN202310279216.5A CN202310279216A CN116326727A CN 116326727 A CN116326727 A CN 116326727A CN 202310279216 A CN202310279216 A CN 202310279216A CN 116326727 A CN116326727 A CN 116326727A
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bean curd
alkaline
dried bean
dried
bean
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娄利娇
谭春燕
朱星陶
杨春杰
陈佳琴
徐熙
龚锡震
何兵
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Guizhou Oil Plant Research Institute
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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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/87Re-use of by-products of food processing for fodder production

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

Abstract

The invention discloses alkaline dried bean curd and a preparation process thereof, and relates to the technical field of food processing. Is prepared from soybean through immersing at 20-60 deg.C for 4-12 hr, immersing in water for 1/1-1/5, coagulating agent for 12-18%, beating at 85-100 deg.C, coagulating at 85-100 deg.C for 20-60min, and squeezing for 20-50g/m 2 Squeezing for 30-40min. The alkaline dried bean curd prepared by the method has high yield, is rich in protein and amino acid, is tender and smooth and has texture after being subjected to alkali addition tenderization treatment, and can be used for hot pot cooking or quick-frying. The product has unique flavor, tender texture, great market potential, simple process and convenient industrialized production.

Description

Alkaline dried bean curd and preparation process thereof
Technical Field
The invention relates to a food and a processing technology, in particular to alkaline dried bean curd and a preparation process thereof.
Background
One of the traditional bean products of the Han nationality is dried bean curd, which is a reprocessed product of bean curd. Salty, fragrant, hard, tough and long-lasting, and is a delicious food in each big vegetable in China. The dried bean curd is nutritious, contains abundant proteins, fats, carbohydrates, and various minerals such as calcium, phosphorus, and iron. The dried bean curd is added with seasonings such as salt, fennel, pepper, aniseed, dried ginger and the like in the preparation process, is fragrant and fresh, and is not easy to eat for a long time, and is known as vegetarian ham.
The traditional dried bean curd is marinated or fermented to improve flavor, and the dried bean curd (application number CN 202010300879.7) is prepared by adding solid seasonings such as fennel, chilli, cinnamon, star anise, pepper and the like into water to be decocted at high temperature to prepare spice brine, and then placing bean slices into the spice brine to be marinated at high temperature, so that the flavor of the solid seasonings is better immersed into the dried bean curd, the taste of a dried bean curd product is better improved, the use of solid seasonings with poor solubility in a mixing step is avoided, the consumption of edible oil is reduced, the fat content in the product is reduced, the greasy feeling of the product is weakened, the customer satisfaction is improved, and the market competitiveness of the product is improved; the application document with the publication number of CN109757567A discloses a preparation method of the marinated dried tofu, which comprises the steps of selecting materials, pulping, dipping, squeezing, alkali dipping, baking and the like. Meanwhile, the applicant also discloses a preparation method of the fermented hand-torn dried bean curd (CN 202011293514.2), wherein the coagulant used is prepared by naturally fermenting pressed bean curd or yellow serofluid drained from the dried bean curd into sour slurry, the yellow serofluid is naturally fermented into the sour slurry to prepare the dried bean curd, the pollution caused by preparing the dried bean curd by other chemical coagulants is avoided, the prepared dried bean curd is fine and smooth in taste, moderate in toughness, natural and pure in fragrance and unique in flavor, the dried bean curd is taken out and baked on charcoal fire when being eaten, the color of the dried bean curd is changed from grey to golden yellow, the dried bean curd is torn by hand after being examined, and the dried bean curd is eaten with the aid of spiced chilli powder, and the dried bean curd is pure in taste, crisp in skin and heart and soft in taste and is overflowed.
Disclosure of Invention
The invention aims at providing an alkaline dried bean curd and a preparation process thereof, wherein soybean is used as a raw material, and the alkaline dried bean curd is prepared by soaking, pulping, filtering, boiling, curdling, squeezing, molding, alkali adding and tenderizing and airing. The product has unique flavor, tender texture, great market potential, simple process and convenient industrialized production.
The invention adopts the following technical scheme to achieve the aim:
a preparation process of alkaline dried bean curd comprises the following steps:
and A, soaking: selecting 100 parts of full Qian bean No. 12 soybeans according to parts by weight, soaking the Qian bean No. 12 soybeans in 100-500 parts by weight of water for 4-12 hours at 20-60 ℃, and fishing out and washing to obtain wet soybeans;
grinding, filtering and boiling the pulp: grinding wet soybeans into slag, and separating the slag to obtain primary bean slag and primary soybean milk; adding 1-2 times of water into the primary bean dregs, uniformly stirring, separating the pulp and the dregs to obtain secondary bean dregs and secondary soybean milk, and repeating the above operations for 3-5 times; transferring the combined soybean milk into a jacketed kettle, heating to 90-100deg.C, boiling for 3-5min to obtain cooked soybean milk;
and C, grouting: transferring the cooked soybean milk prepared in the step B into a barrel, keeping the temperature at 85-100 ℃, adding 12-18% of coagulant under stirring, starting to separate out beancurd jelly, stopping stirring, squatting the brain for 10-20 min, and gradually separating the beancurd jelly from water to obtain beancurd jelly;
d, forming: c, pressing the beancurd jelly obtained in the stepThe degree of the mixture is 20-50g/m 2 Pressing for 30-40min, squeezing, shaping, making bean curd, and cutting into bean slices;
f, adding alkali for tenderization: taking out the white embryo of the dried bean curd pressed in the step D, and tenderizing by adopting edible alkali to obtain alkaline dried bean curd;
e, airing: and F, airing or drying the alkaline dried bean curd obtained in the step F to obtain a final product.
The variety of the soybean is Qian bean No. 12, and the number of the trial soybean 20180001 is checked.
The coagulant consists of 15-17% of acid pulp, 2-5% of calcium sulfate and the balance of water.
The edible alkali adopted for alkali-adding tenderization is sodium carbonate powder containing 3% -5% of salt.
The edible alkali in the step F is used in a manner that the bean slices obtained in the step D are wrapped and fully covered, and the edible alkali powder is removed after standing for 3-5 min.
An alkaline dried bean curd is prepared by the preparation process.
Compared with the prior art, the alkaline dried bean curd prepared by the process has high yield, is rich in protein and amino acid, is tender and smooth and has texture after being subjected to alkali addition tenderization treatment, and can be used for hot pot cooking or quick-frying. The product has unique flavor, tender texture, great market potential, simple process and convenient industrialized production.
Drawings
FIG. 1 is a flow chart of a preparation process of alkaline dried bean curd.
Detailed Description
The following describes the alkaline dried bean curd and the preparation process thereof with reference to the accompanying drawings and examples.
Example 1
A preparation process of alkaline dried bean curd comprises the following steps:
and A, soaking: selecting 100 parts of full Qian bean No. 12 soybeans according to parts by weight, soaking the Qian bean No. 12 soybeans in 300 parts by weight of water for 6 hours at a soaking temperature of 40 ℃, and fishing out and washing to obtain wet soybeans;
grinding, filtering and boiling the pulp: grinding wet soybeans into slag, and separating the slag to obtain primary bean slag and primary soybean milk; adding 2 times of water into the primary bean dregs, uniformly stirring, separating the pulp and the dreg to prepare secondary bean dregs and secondary soybean milk, and repeating the above operations for 3 times; transferring the combined soybean milk into a jacketed kettle, heating to 95deg.C, boiling for 5min to obtain cooked soybean milk;
and C, grouting: transferring the cooked soybean milk prepared in the step B into a barrel, keeping the temperature at 95 ℃, adding 16% coagulant under stirring, starting to separate out beancurd jelly, stopping stirring, squatting for 20min, and gradually separating the beancurd jelly from water to obtain beancurd jelly;
d, forming: c, obtaining the beancurd jelly with the squeezing strength of 35g/m 2 Pressing for 40min, squeezing, shaping, making bean curd, and cutting into bean slices;
f, adding alkali for tenderization: taking out the white embryo of the dried bean curd pressed in the step D, and tenderizing by adopting edible alkali to obtain alkaline dried bean curd;
e, airing: and F, airing or drying the alkaline dried bean curd obtained in the step F to obtain a final product.
The variety of the soybean is Qian bean No. 12, and the number of the trial soybean 20180001 is checked.
The coagulant consists of 16% of acid pulp, 3% of calcium sulfate and the balance of water.
The edible alkali used for alkali-adding tenderization is sodium carbonate powder containing 5% of salt.
The edible alkali in the step F is used in a manner that the bean slices obtained in the step D are wrapped and fully covered, and the edible alkali powder is removed after standing for 5 min.
An alkaline dried bean curd is prepared by the preparation process.
Example 2
A preparation process of alkaline dried bean curd comprises the following steps:
and A, soaking: selecting 100 parts of full Qian bean No. 12 soybeans according to parts by weight, soaking the Qian bean No. 12 soybeans in 500 parts by weight of water for 4 hours at a soaking temperature of 60 ℃, and fishing out and washing the Qian bean to obtain wet soybeans;
grinding, filtering and boiling the pulp: grinding wet soybeans into slag, and separating the slag to obtain primary bean slag and primary soybean milk; adding 1 time of water into the primary bean dregs, uniformly stirring, separating the pulp and the dregs to obtain secondary bean dregs and secondary soybean milk, and repeating the above operation for 5 times; transferring the combined soybean milk into a jacketed kettle, heating to 90 ℃, boiling and keeping for 5min to obtain cooked soybean milk;
and C, grouting: transferring the cooked soybean milk prepared in the step B into a barrel, keeping the temperature at 85 ℃, adding 18% of coagulant under stirring, starting to separate out beancurd jelly, stopping stirring, squatting for 10min, and gradually separating the beancurd jelly from water to prepare beancurd jelly;
d, forming: c, obtaining the beancurd jelly in the step C, wherein the squeezing strength of the beancurd jelly is 50g/m 2 Pressing for 30min, squeezing, shaping, making bean curd, and cutting into bean slices;
f, adding alkali for tenderization: taking out the white embryo of the dried bean curd pressed in the step D, and tenderizing by adopting edible alkali to obtain alkaline dried bean curd;
e, airing: and F, airing or drying the alkaline dried bean curd obtained in the step F to obtain a final product.
The variety of the soybean is Qian bean No. 12, and the number of the trial soybean 20180001 is checked.
The coagulant consists of 15% of acid pulp, 5% of calcium sulfate and the balance of water.
The edible alkali adopted for alkali addition tenderization is sodium carbonate powder containing 3% of salt.
The edible alkali in the step F is used in a manner that the bean slices obtained in the step D are wrapped and fully covered, and the edible alkali powder is removed after standing for 5 min.
An alkaline dried bean curd is prepared by the preparation process.
Example 3
A preparation process of alkaline dried bean curd comprises the following steps:
and A, soaking: selecting 100 parts of full Qian bean No. 12 soybeans according to parts by weight, soaking the Qian bean No. 12 soybeans in 500 parts by weight of water for 12 hours at a soaking temperature of 20 ℃, and fishing out and washing the Qian bean to obtain wet soybeans;
grinding, filtering and boiling the pulp: grinding wet soybeans into slag, and separating the slag to obtain primary bean slag and primary soybean milk; adding 2 times of water into the primary bean dregs, uniformly stirring, separating the pulp and the dreg to prepare secondary bean dregs and secondary soybean milk, and repeating the above operations for 4 times; transferring the combined soybean milk into a jacketed kettle, heating to 95deg.C, boiling for 5min, and making into cooked soybean milk;
and C, grouting: transferring the cooked soybean milk prepared in the step B into a barrel, keeping the temperature at 85 ℃, adding 18% of coagulant under stirring, starting to separate out beancurd jelly, stopping stirring, squatting for 10min, and gradually separating the beancurd jelly from water to obtain beancurd jelly;
d, forming: c, obtaining the beancurd jelly with the pressing strength of 20g/m 2 Pressing for 35min, squeezing, shaping, making bean curd, and cutting into bean slices;
f, adding alkali for tenderization: taking out the white embryo of the dried bean curd pressed in the step D, and tenderizing by adopting edible alkali to obtain alkaline dried bean curd;
e, airing: and F, airing or drying the alkaline dried bean curd obtained in the step F to obtain a final product.
The variety of the soybean is Qian bean No. 12, and the number of the trial soybean 20180001 is checked.
The coagulant consists of 17% of acid pulp, 2% of calcium sulfate and the balance of water.
The edible alkali used for alkali-adding tenderization is sodium carbonate powder containing 4% of salt.
The edible alkali in the step F is used in a manner that the bean slices obtained in the step D are wrapped and fully covered, and the edible alkali powder is removed after standing for 4 min.
An alkaline dried bean curd is prepared by the preparation process.
In order to further highlight that the dried bean curd prepared by the invention is analyzed in examples 1-3 and the physicochemical indexes of the dried bean curd prepared by the conventional preparation process respectively due to the prior art, see tables 1 and 2.
Table 1 comparison of physical and chemical indicators of dried tofu with alkali
Figure BDA0004137582680000061
TABLE 2 comparison of texture Properties of alkaline dried tofu
Figure BDA0004137582680000062
As can be seen from the analysis, compared with the traditional preparation process, the basic dried bean curd prepared by the invention is superior to the traditional process in terms of physical and chemical indexes such as yield, moisture, fat, protein, amino acid and the like, and the basic dried bean curd prepared by the process in the embodiment 1-3 is superior to the traditional process in terms of hardness, elasticity, cohesiveness and chewiness
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the invention in any way, and any simple modification and equivalent changes and modification made to the above embodiment according to the technical matter of the present invention still fall within the scope of the technical scheme of the present invention.

Claims (6)

1. The preparation process of the alkaline dried bean curd is characterized by comprising the following steps of:
and A, soaking: selecting 100 parts of full Qian bean No. 12 soybeans according to parts by weight, soaking the Qian bean No. 12 soybeans in 100-500 parts by weight of water for 4-12 hours at 20-60 ℃, and fishing out and washing to obtain wet soybeans;
grinding, filtering and boiling the pulp: grinding wet soybeans into slag, and separating the slag to obtain primary bean slag and primary soybean milk; adding 1-2 times of water into the primary bean dregs, uniformly stirring, separating the pulp and the dregs to obtain secondary bean dregs and secondary soybean milk, and repeating the above operations for 3-5 times; transferring the combined soybean milk into a jacketed kettle, heating to 90-100deg.C, boiling for 3-5min to obtain cooked soybean milk;
and C, grouting: transferring the cooked soybean milk prepared in the step B into a barrel, keeping the temperature at 85-100 ℃, adding 12-18% of coagulant under stirring, starting to separate out beancurd jelly, stopping stirring, squatting the brain for 10-20 min, and gradually separating the beancurd jelly from water to obtain beancurd jelly;
d, forming: c, pressing the beancurd jelly obtained in the step C to a pressing strength of 20-50g/m 2 Pressing for 30-40min, squeezing, shaping, making bean curd, and cutting into bean slices;
f, adding alkali for tenderization: taking out the white embryo of the dried bean curd pressed in the step D, and tenderizing by adopting edible alkali to obtain alkaline dried bean curd;
e, airing: and F, airing or drying the alkaline dried bean curd obtained in the step F to obtain a final product.
2. The process for preparing alkaline dried bean curd according to claim 1, wherein the process comprises the following steps: the variety of the soybean is Qian bean No. 12, and the number of the trial soybean 20180001 is checked.
3. The process for preparing alkaline dried bean curd according to claim 1, wherein the process comprises the following steps: the coagulant consists of 15-17% of acid pulp, 2-5% of calcium sulfate and the balance of water.
4. The process for preparing alkaline dried bean curd according to claim 1, wherein the process comprises the following steps: the edible alkali adopted for alkali-adding tenderization is sodium carbonate powder containing 3% -5% of salt.
5. The process for preparing alkaline dried bean curd according to claim 1, wherein the process comprises the following steps: the edible alkali in the step F is used in a manner that the bean slices obtained in the step D are wrapped and fully covered, and the edible alkali powder is removed after standing for 3-5 min.
6. An alkaline dried bean curd is characterized in that: is prepared by the preparation process of the alkaline dried bean curd as claimed in any one of claims 1 to 5.
CN202310279216.5A 2023-03-21 2023-03-21 Alkaline dried bean curd and preparation process thereof Pending CN116326727A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113693201A (en) * 2020-11-18 2021-11-26 贵州省油料研究所(贵州省香料研究所) Preparation method of fermented shredded dried bean curd

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104553A (en) * 2015-07-21 2015-12-02 西华大学 Preparation method of wasabia japonica dried tofu
CN105494683A (en) * 2016-01-14 2016-04-20 南江县太子洞食品有限公司 Hard dried bean curd and making method thereof
CN108740053A (en) * 2018-06-29 2018-11-06 四川省胡婆婆食品有限责任公司 A kind of dried bean curd preparation process
CN113693201A (en) * 2020-11-18 2021-11-26 贵州省油料研究所(贵州省香料研究所) Preparation method of fermented shredded dried bean curd

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105104553A (en) * 2015-07-21 2015-12-02 西华大学 Preparation method of wasabia japonica dried tofu
CN105494683A (en) * 2016-01-14 2016-04-20 南江县太子洞食品有限公司 Hard dried bean curd and making method thereof
CN108740053A (en) * 2018-06-29 2018-11-06 四川省胡婆婆食品有限责任公司 A kind of dried bean curd preparation process
CN113693201A (en) * 2020-11-18 2021-11-26 贵州省油料研究所(贵州省香料研究所) Preparation method of fermented shredded dried bean curd

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113693201A (en) * 2020-11-18 2021-11-26 贵州省油料研究所(贵州省香料研究所) Preparation method of fermented shredded dried bean curd

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