CN113647640A - Konjak rice with sodium alginate film and preparation method thereof - Google Patents

Konjak rice with sodium alginate film and preparation method thereof Download PDF

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Publication number
CN113647640A
CN113647640A CN202110956061.5A CN202110956061A CN113647640A CN 113647640 A CN113647640 A CN 113647640A CN 202110956061 A CN202110956061 A CN 202110956061A CN 113647640 A CN113647640 A CN 113647640A
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China
Prior art keywords
sodium alginate
rice
solution
konjac
konjak
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CN202110956061.5A
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Chinese (zh)
Inventor
何兴春
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Sichuan Moxiaoyu Food Co ltd
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Sichuan Moxiaoyu Food Co ltd
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Priority to CN202110956061.5A priority Critical patent/CN113647640A/en
Publication of CN113647640A publication Critical patent/CN113647640A/en
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/20Reducing nutritive value; Dietetic products with reduced nutritive value
    • A23L33/21Addition of substantially indigestible substances, e.g. dietary fibres
    • A23L33/22Comminuted fibrous parts of plants, e.g. bagasse or pulp
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • 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 OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • A23L29/00Foods or foodstuffs containing additives; Preparation or treatment thereof
    • A23L29/20Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents
    • A23L29/206Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin
    • A23L29/244Foods or foodstuffs containing additives; Preparation or treatment thereof containing gelling or thickening agents of vegetable origin from corms, tubers or roots, e.g. glucomannan
    • A23L3/3508
    • A23L3/3562
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23PSHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
    • A23P20/00Coating of foodstuffs; Coatings therefor; Making laminated, multi-layered, stuffed or hollow foodstuffs
    • A23P20/10Coating with edible coatings, e.g. with oils or fats
    • A23P20/15Apparatus or processes for coating with liquid or semi-liquid products
    • A23P20/17Apparatus or processes for coating with liquid or semi-liquid products by dipping in a bath
    • 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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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Health & Medical Sciences (AREA)
  • Botany (AREA)
  • Mycology (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Dispersion Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Preparation Of Fruits And Vegetables (AREA)
  • Jellies, Jams, And Syrups (AREA)

Abstract

The invention discloses a sodium alginate film konjak rice and a preparation method thereof, the konjak rice is rice-shaped konjak glucomannan gel prepared by a special mould after konjak glucomannan and calcium hydroxide solution are mixed, the water content of the konjak rice is high, and starch in the konjak rice and a part of degraded glucomannan gel can be separated out into a fresh-keeping solution in the later storage process to influence the product sense; the invention uses sodium alginate to calcify to form a protective film to wrap the konjak rice to prolong the shelf life of the konjak rice.

Description

Konjak rice with sodium alginate film and preparation method thereof
Technical Field
The invention belongs to the technical field of food processing, and particularly relates to a sodium alginate film konjak rice and a manufacturing method thereof.
Background
The konjac glucomannan is a polysaccharide formed by polymerizing glucose and mannose, belongs to one kind of dietary fiber, is commonly found in plant cell walls, particularly has higher content in konjac refined powder, has extremely strong water-holding capacity and does not contain substances with heat such as sugar, fat, starch, protein and the like.
At present, various foods prepared by konjac glucomannan, such as rice, flour, powder and the like, are available on the market, but because the konjac rice has high water content, starch in the konjac rice and a part of degraded glucomannan gel can be separated out into a fresh-keeping solution in the later storage process, so that the texture of the product is influenced.
Disclosure of Invention
The invention aims to provide konjak rice with a sodium alginate film and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing konjak rice with a sodium alginate film comprises the following steps:
(1) preparation of semifluids
Taking 3-4 parts of konjac powder as a raw material according to the parts by weight, adding a certain amount of drinking water into the raw material, mixing, stirring for 8-12 minutes, standing for 80-100 minutes to allow the konjac powder to fully absorb water and expand to form a semi-fluid of the konjac powder;
(2) preparation method of semi-finished product of rhizoma Amorphophalli rice
Adding 2% edible alkaline solution into the semifluid prepared in the step (1), mixing, preparing into rice-grain-shaped particles, soaking in the 2% edible alkaline solution for 30 minutes to form heat irreversible gel, filtering the heat irreversible gel, soaking in warm water at the temperature of 65-70 ℃ for 8-12 minutes, and rinsing the soaked heat irreversible gel in clear water for 3-4 times to obtain a konjac rice semi-finished product;
(3) preparation of sodium alginate solution
Taking 4-5 parts of sodium alginate powder by weight, and then fully dissolving the sodium alginate powder in 1000 parts of water at normal temperature and normal pressure to obtain a sodium alginate solution;
(4) preparation method of konjak rice with sodium alginate film
And (3) fully mixing the konjac rice semi-finished product obtained in the step (2) with the sodium alginate solution obtained in the step (3) to ensure that the konjac rice semi-finished product is completely soaked in the sodium alginate solution, adding 1-2 parts by weight of calcium lactate solution with the concentration of 5 per mill, and reacting the calcium lactate solution with the sodium alginate solution to form a layer of sodium alginate film on the surface of the konjac rice.
Further, the certain amount of drinking water in the step (1) is 25-35 times of the konjac powder by weight.
Further, the edible alkaline solution in the step (2) is calcium hydroxide or sodium hydroxide solution.
The invention also provides the konjac rice with the sodium alginate film, which is prepared by the preparation method of the konjac rice with the sodium alginate film.
Compared with the prior art, the invention has the following effects:
(1) the edible salt and the konjac rice semi-finished product are mixed for salting out, so that the storage time of the finished product is ensured, and the high water content in the finished product is also ensured; meanwhile, the edible salt is only used for salting out the konjac rice semi-finished product, so that the redundant edible salt can be reused in an evaporation and concentration mode after being washed away, and the manufacturing cost is reduced;
(2) a layer of sodium alginate film is formed on the surface of the konjak rice through the sodium alginate solution and the calcium lactate solution, so that the texture of the konjak rice in the later storage process is ensured on the premise of not influencing the taste, and the quality guarantee period of the konjak rice is prolonged.
Detailed Description
Example 1
The preparation method of the konjac rice with the sodium alginate film provided by the embodiment comprises the following steps:
(1) preparation of semifluids
Taking 3 parts of konjac refined powder as a raw material according to the weight part, adding 80 parts of drinking water into the raw material, mixing, stirring for 8 minutes, standing for 80 minutes to ensure that the konjac refined powder fully absorbs water and expands to form a semi-fluid of the konjac refined powder;
(2) preparation method of semi-finished product of rhizoma Amorphophalli rice
Adding a 2% sodium hydroxide solution into the semifluid prepared in the step (1), mixing, preparing into rice-grain-shaped particles, soaking in the 2% sodium hydroxide solution for 30 minutes to form a thermally irreversible gel, filtering the thermally irreversible gel, soaking in warm water at 65 ℃ for 12 minutes, and rinsing the soaked thermally irreversible gel in clear water for 3 times to obtain a konjac rice semi-finished product;
(3) preparation of sodium alginate solution
Taking 4 parts of sodium alginate powder by weight, and then fully dissolving the sodium alginate powder in 1000 parts of water at normal temperature and normal pressure to obtain a sodium alginate solution;
(4) preparation method of konjak rice with sodium alginate film
And (3) fully mixing the konjac rice semi-finished product in the step (2) with the sodium alginate solution in the step (3) to ensure that the konjac rice semi-finished product is completely soaked in the sodium alginate solution, adding 1 part by weight of calcium lactate solution with the concentration of 5 per mill, and reacting the calcium lactate solution with the sodium alginate solution to form a layer of sodium alginate film on the surface of the konjac rice.
Example 2
The preparation method of the konjac rice with the sodium alginate film provided by the embodiment comprises the following steps:
(1) preparation of semifluids
Taking 4 parts of konjac refined powder as a raw material according to the weight part, adding 120 parts of drinking water into the raw material, mixing, stirring for 12 minutes, standing for 100 minutes to ensure that the konjac refined powder fully absorbs water and expands to form a semi-fluid of the konjac refined powder;
(2) preparation method of semi-finished product of rhizoma Amorphophalli rice
Adding a 2% calcium hydroxide solution into the semifluid prepared in the step (1), mixing, preparing into rice-grain-shaped particles, soaking in the 2% calcium hydroxide solution for 30 minutes to form a thermally irreversible gel, filtering the thermally irreversible gel, soaking in warm water at 70 ℃ for 10 minutes, and rinsing the soaked thermally irreversible gel in clear water for 4 times to obtain a konjac rice semi-finished product;
(3) preparation of sodium alginate solution
Taking 5 parts by weight of sodium alginate powder, and then fully dissolving the sodium alginate powder in 1000 parts by weight of water at normal temperature and normal pressure to obtain a sodium alginate solution;
(4) preparation method of konjak rice with sodium alginate film
And (3) fully mixing the konjac rice semi-finished product in the step (2) with the sodium alginate solution in the step (3) to ensure that the konjac rice semi-finished product is completely soaked in the sodium alginate solution, adding 2 parts by weight of calcium lactate solution with the concentration of 5 per mill, and reacting the calcium lactate solution with the sodium alginate solution to form a layer of sodium alginate film on the surface of the konjac rice.
Example 3
The preparation method of the konjac rice with the sodium alginate film provided by the embodiment comprises the following steps:
(1) preparation of semifluids
Taking 3.5kg of konjac powder as a raw material, adding 100kg of drinking water into the raw material, mixing, stirring for 10 minutes, standing for 90 minutes to ensure that the konjac powder fully absorbs water and expands to form a semi-fluid of the konjac powder;
(2) preparation method of semi-finished product of rhizoma Amorphophalli rice
Adding a 2% calcium hydroxide solution into the semifluid prepared in the step (1), mixing, preparing into rice-grain-shaped particles, soaking in a 2% sodium hydroxide solution for 30 minutes to form a thermally irreversible gel, filtering the thermally irreversible gel, soaking in warm water at 75 ℃ for 8 minutes, and rinsing the soaked thermally irreversible gel in clear water for 4 times to obtain a konjac rice semi-finished product;
(3) preparation of sodium alginate solution
Taking 5kg of sodium alginate powder, and then fully dissolving the sodium alginate powder in 1000kg of water at normal temperature and normal pressure to obtain a sodium alginate solution;
(4) preparation method of konjak rice with sodium alginate film
And (3) fully mixing the konjac rice semi-finished product in the step (2) with the sodium alginate solution in the step (3) to ensure that the konjac rice semi-finished product is completely soaked in the sodium alginate solution, adding 1000kg of calcium lactate solution with the concentration of 5 per mill by weight, and reacting the calcium lactate solution with the sodium alginate solution to form a layer of sodium alginate film on the surface of the konjac rice.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any modification and replacement based on the technical solution and inventive concept provided by the present invention should be covered within the scope of the present invention.

Claims (4)

1. A method for preparing konjak rice with a sodium alginate film is characterized by comprising the following steps:
(1) preparation of semifluids
Taking 3-4 parts of konjac powder as a raw material according to the parts by weight, adding a certain amount of drinking water into the raw material, mixing, stirring for 8-12 minutes, standing for 80-100 minutes to allow the konjac powder to fully absorb water and expand to form a semi-fluid of the konjac powder;
(2) preparation method of semi-finished product of rhizoma Amorphophalli rice
Adding 2% edible alkaline solution into the semifluid prepared in the step (1), mixing, preparing into rice-grain-shaped particles, soaking in the 2% edible alkaline solution for 30 minutes to form heat irreversible gel, filtering the heat irreversible gel, soaking in warm water at the temperature of 65-70 ℃ for 8-12 minutes, and rinsing the soaked heat irreversible gel in clear water for 3-4 times to obtain a konjac rice semi-finished product;
(3) preparation of sodium alginate solution
Taking 4-5 parts of sodium alginate powder by weight, and then fully dissolving the sodium alginate powder in 1000 parts of water at normal temperature and normal pressure to obtain a sodium alginate solution;
(4) preparation method of konjak rice with sodium alginate film
And (3) fully mixing the konjac rice semi-finished product obtained in the step (2) with the sodium alginate solution obtained in the step (3) to ensure that the konjac rice semi-finished product is completely soaked in the sodium alginate solution, adding 1-2 parts by weight of calcium lactate solution with the concentration of 5 per mill, and reacting the calcium lactate solution with the sodium alginate solution to form a layer of sodium alginate film on the surface of the konjac rice.
2. The method for preparing konjak rice with sodium alginate film according to claim 1, which is characterized in that: the certain amount of drinking water in the step (1) is 25-35 times of the weight of the konjac powder.
3. The method for preparing konjak rice with sodium alginate film according to claim 1, which is characterized in that: the edible alkaline solution in the step (2) is calcium hydroxide or sodium hydroxide solution.
4. The sodium alginate film konjak rice prepared by the method for preparing the sodium alginate film konjak rice according to any one of claims 1 to 3.
CN202110956061.5A 2021-08-19 2021-08-19 Konjak rice with sodium alginate film and preparation method thereof Pending CN113647640A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115517351A (en) * 2022-08-18 2022-12-27 湖北华大江声科技有限公司 Preparation method of high-protein konjak composite nutritional rice
CN115769878A (en) * 2022-12-11 2023-03-10 湖北一致魔芋生物科技股份有限公司 Edible konjak powder particles with double-layer taste and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103478544A (en) * 2013-08-23 2014-01-01 四川魔力科技有限公司 Konjak dietary fiber nutrient enrichment rice and preparation method thereof
CN109043305A (en) * 2018-08-02 2018-12-21 湖南新中意食品有限公司 A kind of fructus lycii Anti-fade processing method
CN110495613A (en) * 2019-09-26 2019-11-26 何兴春 A kind of hyposite fiber rice and preparation method thereof
CN111919952A (en) * 2020-08-14 2020-11-13 惠州旺嘉食品有限公司 Preparation method of konjak rice
CN112042901A (en) * 2020-08-25 2020-12-08 浙江李子园食品股份有限公司 Preparation method of reproduced konjak particles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103478544A (en) * 2013-08-23 2014-01-01 四川魔力科技有限公司 Konjak dietary fiber nutrient enrichment rice and preparation method thereof
CN109043305A (en) * 2018-08-02 2018-12-21 湖南新中意食品有限公司 A kind of fructus lycii Anti-fade processing method
CN110495613A (en) * 2019-09-26 2019-11-26 何兴春 A kind of hyposite fiber rice and preparation method thereof
CN111919952A (en) * 2020-08-14 2020-11-13 惠州旺嘉食品有限公司 Preparation method of konjak rice
CN112042901A (en) * 2020-08-25 2020-12-08 浙江李子园食品股份有限公司 Preparation method of reproduced konjak particles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115517351A (en) * 2022-08-18 2022-12-27 湖北华大江声科技有限公司 Preparation method of high-protein konjak composite nutritional rice
CN115769878A (en) * 2022-12-11 2023-03-10 湖北一致魔芋生物科技股份有限公司 Edible konjak powder particles with double-layer taste and preparation method thereof
CN115769878B (en) * 2022-12-11 2024-07-05 湖北一致魔芋生物科技股份有限公司 Double-layer mouthfeel konjaku flour edible particles and preparation method thereof

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