CN107183577A - A kind of bulk dace of local flavor is dry and preparation method thereof - Google Patents

A kind of bulk dace of local flavor is dry and preparation method thereof Download PDF

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Publication number
CN107183577A
CN107183577A CN201710369054.9A CN201710369054A CN107183577A CN 107183577 A CN107183577 A CN 107183577A CN 201710369054 A CN201710369054 A CN 201710369054A CN 107183577 A CN107183577 A CN 107183577A
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CN
China
Prior art keywords
dace
dry
carbon dioxide
bulk
local flavor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710369054.9A
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Chinese (zh)
Inventor
张友胜
曾萍
张业辉
汪婧瑜
刘学铭
程镜蓉
陈智毅
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Sericulture and Agri Food Research Institute GAAS
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Sericulture and Agri Food Research Institute GAAS
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Priority to CN201710369054.9A priority Critical patent/CN107183577A/en
Publication of CN107183577A publication Critical patent/CN107183577A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • A23L17/00Food-from-the-sea products; Fish products; Fish meal; Fish-egg substitutes; Preparation or treatment thereof
    • A23L17/10Fish meal or powder; Granules, agglomerates or flakes
    • 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
    • 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
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • 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
    • A23L5/00Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20Removal of unwanted matter, e.g. deodorisation or detoxification
    • A23L5/27Removal of unwanted matter, e.g. deodorisation or detoxification by chemical treatment, by adsorption or by absorption
    • A23L5/276Treatment with inorganic compounds
    • 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

Abstract

The invention belongs to dried fish leisure food manufacture field, a kind of bulk dace of local flavor is disclosed dry and preparation method thereof.The method comprising the steps of:Select the dace dry raw material that mass water content is 20 55%;By dry operating pressure, operating temperature and the carbon dioxide flow for being fitted into supercritical carbon dioxide extracting kettle, setting extraction kettle of dace, then to the dry progress supercritical carbon dioxide extracting of dace in extraction kettle;After extraction terminates, the pressure of extraction kettle is reduced, carbon dioxide is set to change into gaseous state by supercriticality, the volume of carbon dioxide becomes the big volumetric expansion for further making dace dry in dace is dry, flavoring is added, vegetable oil is added, loaded in packing container, sterilize simultaneously, produce the dry finished product of the bulk dace of local flavor.Extraction solvent it is nontoxic, harmless, do not burn, do not explode, chemical inertness, production process environmental protection;The dried fish quality better of production, it is safe:Without microorganism, heavy metal, organic solvent, protein source class poisonous and harmful substance.

Description

A kind of bulk dace of local flavor is dry and preparation method thereof
Technical field
The invention belongs to dried fish leisure food manufacture field, more particularly to a kind of bulk dace of local flavor does and its preparation side Method.
Background technology
Dace (Cirrhinus molitorella), Cyprinidae labeoninae dace category is belonged on taxology, is that south China is important One of economic fish, its yield accounts for the 1/3 of Pearl River Delta fresh water fishery yield.Because its meat delicacy, delicious, yield are big, single Production is high, moderate and has good quality, and is the situation of selling well aquatic products in market.
Current dace leisure product processing method mainly includes following main points:(1) working process:Raw material fish is cleaned into impurity elimination Deng;(2) salt marsh is rinsed;(3) it is fried:Oil is put into Fryer and is heated to after 150 DEG C of oil temperature, beginning is fried, fries to fish block table Face is in light brown;(4) seasoning:Baste is configured to white granulated sugar, monosodium glutamate, Alpinia japonica powder, anise, cloves, cassia bark, liquorice beverage etc., Dace after fried is directly immersed in immersion 10-20min in 50-75 DEG C of baste.
In above-mentioned manufacturing procedure, fried is very important process.The main function of fried process is to become raw material fish It is loose, while being allowed to produce some fragrance matters at high temperature, but it is due to that frying temperature is too high, equally easily produces some shadows Ring the composition of food security.
The content of the invention
In order to solve the part of shortcoming and defect present in above-mentioned prior art, primary and foremost purpose of the invention is offer one Plant the dry preparation method of the bulk dace of local flavor;It is bulk that this method replaces fried process to carry out dried fish using supercritical carbon dioxide Softening, then a kind of bulk dace of the local flavor of unique flavor of auxiliary baste production is dry.
Another object of the present invention is to provide a kind of dace of bulk softening to do.
The object of the invention is achieved through the following technical solutions:
A kind of dry preparation method of bulk dace of local flavor, this method includes following operating procedure:
(1) raw material is selected:Select the dace dry raw material that mass water content is 20-55%;
(2) feed:Above-mentioned raw materials are fitted into supercritical carbon dioxide extracting kettle, the dry 1/2- for accounting for extraction kettle volume of dace 1/4;
(3) extract:Operating pressure, operating temperature and the carbon dioxide flow of extraction kettle are set, then in extraction kettle Dace dry carry out supercritical carbon dioxide extracting;
(4) it is depressured bulk:After extraction terminates, the pressure of extraction kettle is reduced, carbon dioxide is converted by supercriticality Into gaseous state, the volume of the dry interior carbon dioxide of dace becomes the big volumetric expansion for further making dace dry, and structure becomes loose;
(5) seasoning:By the dace dry in mass ratio 1 after swollen dredge:1-1.5 ratio directly and flavoring for mixture, is adjusted Taste dace does;
(6) sterilize, pack:To the dry middle addition vegetable oil of seasoning dace, while loading in packing container, sterilization produces wind Taste the is bulk dry finished product of dace.
The dry volume of step (2) described dace is preferably account for extraction kettle volume 1/3.
Step (2) the supercritical carbon dioxide extracting kettle is volume 5-3000L supercritical fluid extraction container, pressure-bearing Ability is 50-60MPa.
The operating pressure of step (3) described extraction kettle is 30-50MPa, and operating temperature is 40-60 DEG C;The carbon dioxide Flow is per kilogram raw material 10-20 kilograms of carbon dioxide per hour;The time of the supercritical carbon dioxide extracting is 3-15 points Clock.
It is to open dropping valve that step (4) pressure by extraction kettle, which is reduced, pressure is classified as 0.
Step (5) flavoring is made up of following component by mass percentage:Fermented soya bean 35~39%, capsicum 35~ 39%th, soy sauce 9~10%, Chinese prickly ash 0.9~1.1%, cumin 0.50~0.6%, monosodium glutamate 5~6%, chicken powder 4~5%, cooking wine 0.5 ~1%, chicken powder 4~5%, salt 2~4%.
The consumption of step (6) described vegetable oil is the 10-50% of seasoning dace dry mass.
A kind of bulk dace of local flavor prepared according to above-mentioned preparation method does.
The present invention principle be:Dried fish is carried out in short-term extraction process in extraction kettle, can will be partly adhered to surface Rotten fish oil and microorganism, heavy metal, organic solvent, protein source class poisonous and harmful substance are removed, after being conducive in product Taste with sweet and sour flavor is presented;Quick pressure reduction operation can make to burst inside dace dry raw material in extraction kettle afterwards, so that The structure of dried fish becomes more loose, and flavoring enters fish body after loose fish body structure is also beneficial to, and product is presented special Different local flavor.
The present invention compared with the prior art, has the following advantages and beneficial effect:
The present invention solves the side effect to product that fried process is brought, while harder dried fish is become bulk, Flavoring enters fish body after being conducive to, and makes product that special local flavor is presented;Extraction solvent it is nontoxic, harmless, do not burn, it is not quick-fried Fried, chemical inertness, production process environmental protection;The security of other product has further raising.
Specific implementation method
With reference to embodiment, the present invention is described in further detail, but the implementation of the present invention is not limited to this.
Dace used in following examples is dry to derive from marketable material, and vegetable oil is benefit Hai Jiali " golden dragonfish ";Extraction Kettle is that Jiangsu Hongbo Machinery Manufacture Co., Ltd. is production, and volume is 50L, and bearing capacity is 50MPa.
Embodiment 1
1st, 10Kg sizes are chosen suitable, well, the preferable dace of homogeneity does (mass water content is 20-55%) to quality.
2nd, above-mentioned dace is done and be fitted into supercritical carbon dioxide extracting kettle, dace is dry to account for the 1/2 of extraction kettle volume;Setting Extraction kettle pressure is 30MPa, and extraction kettle temperature is 40 DEG C, and carbon dioxide flow is 15 kilograms per hour of per kilogram raw material.
3rd, CO 2 high pressure pump is opened, the pressure and temperature of kettle to be extracted reaches setting operating pressure and operating temperature Afterwards, start extraction, after extracting 10 minutes, stop extracting and simultaneously reclaim carbon dioxide in extraction kettle.Gas collection is completed in extraction kettle Afterwards, extraction kettle is down into normal pressure to open, dried fish is taken out.
4th, 10Kg flavorings are prepared, flavoring is by following component composition by mass percentage:Fermented soya bean 35%, capsicum 39%th, soy sauce 9%, Chinese prickly ash 1%, cumin 0.50%, monosodium glutamate 5%, chicken powder 4%, cooking wine 0.5%, chicken powder 4%, salt 2%.
5th, the dace of taking-up is done and flavoring in mass ratio 1:1 mixing, obtains seasoning dace and does;In being done to seasoning dace 15 kilograms of vegetable oil are added, mix uniform, while loading in packing container, sterilization produces the bulk dace dryed product of local flavor.
Products obtained therefrom is with sweet and sour flavor, salted cake fried in sesame oil and flavoring are mixed, aromatic flavour;Solid and liquid component collocation in product Rationally, entirety is glossy reflects, tasty tempting;It is bulk that dace does micro- Huang, spicy delicious, existing chewy texture, the sense for not having " too hard " again Feel.
Embodiment 2
1st, 10Kg sizes are chosen suitable, well, the preferable dace of homogeneity does (mass water content is 20-55%) to quality.
2nd, above-mentioned dace is done and be fitted into supercritical carbon dioxide extracting kettle, dace is dry to account for the 1/4 of extraction kettle volume;Setting Extraction kettle pressure is 40MPa, and extraction kettle temperature is 60 DEG C, and carbon dioxide flow is 10 kilograms per hour of per kilogram raw material.
3rd, CO 2 high pressure pump is opened, the pressure and temperature of kettle to be extracted reaches setting operating pressure and operating temperature Afterwards, start extraction, after extracting 5 minutes, stop extracting and simultaneously reclaim carbon dioxide in extraction kettle.Gas collection is completed in extraction kettle Afterwards, extraction kettle is down into normal pressure to open, dried fish is taken out.
4th, 15Kg flavorings are prepared, flavoring is by following component composition by mass percentage:Fermented soya bean 39%, capsicum 35%th, soy sauce 9%, Chinese prickly ash 1%, cumin 0.50%, monosodium glutamate 5%, chicken powder 4%, cooking wine 0.5%, chicken powder 4%, salt 2%.
5th, the dace of taking-up is done and flavoring in mass ratio 1:1.5 mixing, obtain seasoning dace and do;It is dry to seasoning dace 15 kilograms of vegetable oil of middle addition, mix uniform, while loading in packing container, sterilization produces the bulk dace dryed product of local flavor.
Products obtained therefrom is with sweet and sour flavor, salted cake fried in sesame oil and flavoring are mixed, aromatic flavour;Solid and liquid component collocation in product Rationally, entirety is glossy reflects, tasty tempting;It is bulk that dace does micro- Huang, spicy delicious, existing chewy texture, the sense for not having " too hard " again Feel.
Embodiment 3
1st, 10Kg sizes are chosen suitable, well, the preferable dace of homogeneity does (mass water content is 20-55%) to quality.
2nd, above-mentioned dace is done and be fitted into supercritical carbon dioxide extracting kettle, dace is dry to account for the 1/3 of extraction kettle volume;Setting Extraction kettle pressure is 50MPa, and extraction kettle temperature is 50 DEG C, and carbon dioxide flow is 20 kilograms per hour of per kilogram raw material.
3rd, CO 2 high pressure pump is opened, the pressure and temperature of kettle to be extracted reaches setting operating pressure and operating temperature Afterwards, start extraction, after extracting 15 minutes, stop extracting and simultaneously reclaim carbon dioxide in extraction kettle.Gas collection is completed in extraction kettle Afterwards, extraction kettle is down into normal pressure to open, dried fish is taken out.
4th, 10Kg flavorings are prepared, flavoring is by following component composition by mass percentage:Fermented soya bean 35%, capsicum 35%th, soy sauce 10%, Chinese prickly ash 0.9%, cumin 0.6%, monosodium glutamate 6%, chicken powder 4.5%, cooking wine 1%, chicken powder 4%, salt 3%.
5th, the dace of taking-up is done and flavoring in mass ratio 1:1.2 mixing, obtain seasoning dace and do;It is dry to seasoning dace 15 kilograms of vegetable oil of middle addition, mix uniform, while loading in packing container, sterilization produces the bulk dace dryed product of local flavor.
Products obtained therefrom is with sweet and sour flavor, salted cake fried in sesame oil and flavoring are mixed, aromatic flavour;Solid and liquid component collocation in product Rationally, entirety is glossy reflects, tasty tempting;It is bulk that dace does micro- Huang, spicy delicious, existing chewy texture, the sense for not having " too hard " again Feel.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification, Equivalent substitute mode is should be, is included within protection scope of the present invention.

Claims (8)

1. a kind of dry preparation method of bulk dace of local flavor, it is characterised in that:This method includes following operating procedure:
(1) raw material is selected:Select the dace dry raw material that mass water content is 20-55%;
(2) feed:Above-mentioned raw materials are fitted into supercritical carbon dioxide extracting kettle, the dry 1/2-1/4 for accounting for extraction kettle volume of dace;
(3) extract:Operating pressure, operating temperature and the carbon dioxide flow of extraction kettle are set, then to the dace in extraction kettle Dried fish carries out supercritical carbon dioxide extracting;
(4) it is depressured bulk:After extraction terminates, the pressure of extraction kettle is reduced, carbon dioxide is changed into gas by supercriticality Body state, the volume of the dry interior carbon dioxide of dace becomes the big volumetric expansion for further making dace dry, and structure becomes loose;
(5) seasoning:By the dace dry in mass ratio 1 after swollen dredge:1-1.5 ratio directly and flavoring for mixture, obtains seasoning dace Dried fish;
(6) sterilize, pack:To the dry middle addition vegetable oil of seasoning dace, while loading in packing container, sterilization produces local flavor swollen The loose dry finished product of dace.
2. a kind of dry preparation method of the bulk dace of local flavor according to claim 1, it is characterised in that:Step (3) is described Dace is dry to account for the 1/3 of extraction kettle volume.
3. a kind of dry preparation method of the bulk dace of local flavor according to claim 1, it is characterised in that:Step (3) is described Supercritical carbon dioxide extracting kettle is volume 5-3000L supercritical fluid extraction container, and bearing capacity is 50-60MPa.
4. a kind of dry preparation method of the bulk dace of local flavor according to claim 1, it is characterised in that:Step (4) is described The operating pressure of extraction kettle is 30-50MPa, and operating temperature is 40-60 DEG C;The carbon dioxide flow is per kilogram raw material per small When 10-20 kilograms of carbon dioxide;The time of the supercritical carbon dioxide extracting is 3-15 minutes.
5. a kind of dry preparation method of the bulk dace of local flavor according to claim 1, it is characterised in that:Step (4) is described It is to open dropping valve by the pressure reduction of extraction kettle, pressure is classified as 0.
6. a kind of dry preparation method of the bulk dace of local flavor according to claim 1, it is characterised in that:Step (5) is described Flavoring is made up of following component by mass percentage:Fermented soya bean 35~39%, capsicum 35~39%, soy sauce 9~10%, flower Green pepper 0.9~1.1%, cumin 0.50~0.6%, monosodium glutamate 5~6%, chicken powder 4~5%, cooking wine 0.5~1%, chicken powder 4~5%, food Salt 2~4%.
7. a kind of dry preparation method of the bulk dace of local flavor according to claim 1, it is characterised in that:Step (6) is described The consumption of vegetable oil is the 10-50% of seasoning dace dry mass.
8. the bulk dace of local flavor that a kind of preparation method according to claim 1 is prepared does.
CN201710369054.9A 2017-05-23 2017-05-23 A kind of bulk dace of local flavor is dry and preparation method thereof Pending CN107183577A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107865341A (en) * 2017-11-29 2018-04-03 荣成市飞创科技有限公司 A kind of preparation method of silverfish dried fish

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104187434A (en) * 2014-07-25 2014-12-10 南京财经大学 Modified germinated brown rice extrusion puffed food and processing method thereof
CN106579069A (en) * 2016-09-14 2017-04-26 安徽宝恒农业有限公司 Coriander-seed-flavored spicy dried bitterling

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104187434A (en) * 2014-07-25 2014-12-10 南京财经大学 Modified germinated brown rice extrusion puffed food and processing method thereof
CN106579069A (en) * 2016-09-14 2017-04-26 安徽宝恒农业有限公司 Coriander-seed-flavored spicy dried bitterling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
王宇伟等: "二氧化碳在食品挤压膨化中的应用", 《食品研究与开发》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107865341A (en) * 2017-11-29 2018-04-03 荣成市飞创科技有限公司 A kind of preparation method of silverfish dried fish
CN107865341B (en) * 2017-11-29 2021-03-30 荣成市飞创科技有限公司 Preparation method of dried whitebait

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Application publication date: 20170922