CN102919343B - Modified atmosphere preservation method for onboard pakchoi - Google Patents

Modified atmosphere preservation method for onboard pakchoi Download PDF

Info

Publication number
CN102919343B
CN102919343B CN201210474089.6A CN201210474089A CN102919343B CN 102919343 B CN102919343 B CN 102919343B CN 201210474089 A CN201210474089 A CN 201210474089A CN 102919343 B CN102919343 B CN 102919343B
Authority
CN
China
Prior art keywords
pakchoi
gas
fresh
keeping
protection package
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.)
Active
Application number
CN201210474089.6A
Other languages
Chinese (zh)
Other versions
CN102919343A (en
Inventor
郭晓光
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin CNRO Science Technology Co Ltd
Original Assignee
Tianjin CNRO Science Technology Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Tianjin CNRO Science Technology Co Ltd filed Critical Tianjin CNRO Science Technology Co Ltd
Priority to CN201210474089.6A priority Critical patent/CN102919343B/en
Publication of CN102919343A publication Critical patent/CN102919343A/en
Application granted granted Critical
Publication of CN102919343B publication Critical patent/CN102919343B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses a modified atmosphere preservation method for onboard pakchoi. The method sequentially comprises the following steps: 1, precooling; 2, keeping pakchoi fresh with fresh-keeping bags; 3, setting parameter values of gases in the fresh-keeping bags: introducing O2 gas, CO2 gas and N2 gas into the fresh-keeping bags containing pakchoi by using a high-precision gas distributor, wherein the parameter values are that the concentration of O2 gas is 2%-10%, the concentration of CO2 gas is 8%-15% and the balance is N2 gas; 4, storing in refrigeration houses, wherein the temperature of the refrigeration houses is controlled to be 0-4 DEG C and the relative humidity of the refrigeration houses is controlled to be 60%-90%; and 5, ending. The modified atmosphere preservation method for onboard pakchoi has the following beneficial effects that through precooling, preserving with the fresh-keeping bags and distribution of O2 gas, CO2 gas and N2 gas into the fresh-keeping bags, as well as control on temperature and humidity key processes, the storage period of the pakchoi is prolonged to 45 days from the prior 1-2 days at normal temperature, and 96% of pakchoi does not have leaf water loss, brown stain even rot and other deterioration phenomena. The modified atmosphere preservation method for onboard pakchoi meets the requirements of industrialization development and internationalization of the vegetable industry in China.

Description

A kind of air regulating fresh-keeping method to pakchoi peculiar to vessel
Technical field
The present invention relates to the preservation method of a kind of pakchoi, particularly be a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel.
Background technology
Pakchoi, has another name called Chinese cabbage, Cruciferae, Btassica, originate in China, plant is shorter and smaller, and cauline leaf is edible, leaf look pale green is to blackish green, blade is obovate or ellipse, smooth or pleat contracting, and petiole is plump, white or green, mouthfeel is very soft glutinous, and delicate fragrance is delicious, containing protein, fat, carbohydrate, dietary fiber and abundant vitamin and minerals.Its calcium content, higher than Chinese cabbage 2 ~ 3 times, is the desirable vegetables of control vitamin D deficiency (rickets).Pakchoi property is put down, and taste is sweet, is conducive to angiocardiopathy preventing, reduces cancer stricken dangerous, and can lead to intestines profit stomach, is that economical and practical and nutritious vegetables are top grade, is deeply subject to liking of numerous crewman.
Pakchoi should not store fortune far away for a long time, particularly in post harvest transport preservation process subject matter be dehydration wilting, yellow and the phenomenon such as to rot, therefore to keeping the preservation condition of pakchoi better quality and shelf life to require tighter.In prior art, pakchoi preservation and freshness is adopted to the processing method of cryopreservation, the fresh-keeping concrete parameter of cryopreservation is: it is 0 DEG C ~ 1 DEG C that temperature controls, relative humidity 95% ~ 98%; The freshness date of pakchoi only has 10 days ~ 12 days; In preservation process usually because of the tender and lovely easy dehydration of its quality, rot and the phenomenon such as nutrient component damages.The Storage Requirement in more than 30 days time limits peculiar to vessel can not be met in above-mentioned prior art to pakchoi air regulating fresh-keeping method, directly affect the demand of crewman's food supply.
Summary of the invention
The object of the invention is to the defect overcoming above-mentioned prior art, a kind of freshness date that can extend pakchoi is provided, Quality of Chinese Cabbage can be kept again good, realize a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel of the target of convoy crewman " meal meal has leaf vegetables ".
The technical scheme solved the problems of the technologies described above is: a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel, and the described air regulating fresh-keeping method to pakchoi peculiar to vessel carries out in accordance with the following steps successively: 1). precooling: be placed in rapidly after pakchoi is gathered 2 DEG C, relative humidity be 94% freezer precooling 30 hours; 2). fresh-keeping with freshness protection package: to be placed in by the pakchoi after precooling in the freshness protection package of long 80cm, wide 60cm, each fresh-keeping packed pakchoi amount is 11kg, and makes pakchoi be in loose condition (of surface); 3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in pakchoi freshness protection package 2, CO 2, N 2gas, its parameter value is respectively: O 2concentration is 6%, CO 2concentration is 12%, remaining gas is N 2; 4). enter Storage in cold bank: previous step is prepared the pakchoi freshness protection package after gas and put into freezer and preserve, controlling temperature of ice house is 2 DEG C, and relative humidity is 75%; 5). terminate.
The invention has the beneficial effects as follows: the present invention overcomes the defect of prior art, and the present invention passes through precooling; Freshness protection package is packed; O is prepared in freshness protection package 2, CO 2, N 2gas; And combine control to the critical process such as temperature, humidity, make the storage period of pakchoi by 1 under normal temperature day ~ extend to 45 days in 2 days, the pakchoi of more than 96% does not occur that blade face dehydration, brown stain such as even to be rotted at the quality deterioration phenomenon, keeps good edibility.The method operating procedure is simple, and cost is lower, without chemical residual in storage, meets China's Vegetable industrialization development and internationalization requirement.
Detailed description of the invention
Below embodiments of the invention are described in detail.
The invention provides a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel, the described air regulating fresh-keeping method to pakchoi peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly after pakchoi is gathered 0 DEG C ~ 4 DEG C, relative humidity be 90% ~ 98% freezer precooling 10 hours ~ 50 hours;
2). fresh-keeping with freshness protection package: to be placed in by the pakchoi after precooling in the freshness protection package of long 30cm ~ 120cm, wide 20cm ~ 100cm, each fresh-keeping packed pakchoi amount is 1kg ~ 20kg, and makes pakchoi be in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in pakchoi freshness protection package 2, CO 2, N 2gas, its parameter value is respectively: O 2concentration is 2% ~ 10%, CO 2concentration is 8% ~ 15%, remaining gas is N 2;
4). enter Storage in cold bank: previous step is prepared the pakchoi freshness protection package after gas and put into freezer and preserve, controlling temperature of ice house is 0 DEG C ~ 4 DEG C, and relative humidity is 60% ~ 90%;
5). terminate.
Described high-accuracy gas mixing device is CPY-3000/6 by the model of Tianjin CNRO Science Technology Development Co., Ltd development & production, and commercially sell, and is mainly used in controlled atmosphere industry.This high-accuracy gas mixing device can regulate the trim analysis of gas with various from control panel, meet the concentration requirement of oxygen, carbon dioxide and nitrogen in required mist, its distribution precision is high, reproducible, fast response time, reliable and stable, effectively can improve automaticity and the preserving fruit and vegetable utilizing effect of controlled atmosphere, also there is good safety in utilization.
Embodiment 1:
The invention provides a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel, the described air regulating fresh-keeping method to pakchoi peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly after pakchoi is gathered 0 DEG C, relative humidity be 90% freezer precooling 10 hours;
2). fresh-keeping with freshness protection package: to be placed in by the pakchoi after precooling in the freshness protection package of long 32cm, wide 20cm, each fresh-keeping packed pakchoi amount is 1.5kg, and makes pakchoi be in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in pakchoi freshness protection package 2, CO 2, N 2gas, its parameter value is respectively: O 2concentration is 2%, CO 2concentration is 8%, remaining gas is N 2;
4). enter Storage in cold bank: previous step is prepared the pakchoi freshness protection package after gas and put into freezer and preserve, controlling temperature of ice house is 0 DEG C, relative humidity 60%;
5). terminate.
Embodiment 2:
The invention provides a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel, the described air regulating fresh-keeping method to pakchoi peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly after pakchoi is gathered 4 DEG C, relative humidity be 98% freezer precooling 50 hours;
2). fresh-keeping with freshness protection package: to be placed in by the pakchoi after precooling in the freshness protection package of long 120cm, wide 100cm, each fresh-keeping packed pakchoi amount is 20kg, and makes pakchoi be in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in pakchoi freshness protection package 2, CO 2, N 2gas, its parameter value is respectively: O 2concentration is 10%, CO 2concentration is 15%, remaining gas is N 2;
4). enter Storage in cold bank: previous step is prepared the pakchoi freshness protection package after gas and put into freezer and preserve, controlling temperature of ice house is 4 DEG C, relative humidity 90%;
5). terminate.
Embodiment 3:
The invention provides a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel, the described air regulating fresh-keeping method to pakchoi peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly after pakchoi is gathered 2 DEG C, relative humidity be 94% freezer precooling 30 hours;
2). fresh-keeping with freshness protection package: to be placed in by the pakchoi after precooling in the freshness protection package of long 80cm, wide 60cm, each fresh-keeping packed pakchoi amount is 11kg, and makes pakchoi be in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in pakchoi freshness protection package 2, CO 2, N 2gas, its parameter value is respectively: O 2concentration is 6%, CO 2concentration is 12%, remaining gas is N 2;
4). enter Storage in cold bank: previous step is prepared the pakchoi freshness protection package after gas and put into freezer and preserve, controlling temperature of ice house is 2 DEG C, and relative humidity is 75%;
5). terminate.
Test proves, the preservation method of controlled atmospheric packing effectively prevent the wilting dehydration on pakchoi blade face, and therefore controlling dehydration is one of fresh-keeping mechanism of controlled atmospheric packing.
By learning the controlled atmosphere effect of pakchoi and the research of security: in pakchoi freshness protection package, oxygen concentration controls its chlorophyllous degraded can be suppressed to prevent blade face yellow 2% ~ 10% time; Keep the gas concentration lwevel of 8% ~ 15% can reduce the respiratory rate of pakchoi self, reduce the consumption of nutriment, thus delay vegetables aging and quality deterioration problem; Freshness protection package internal control can slow down the oxidation of pakchoi built in being more than or equal to more than 75% nitrogen gas concn, avoid blade face brown stain even aging, thus has the well green preservation of guarantor.In addition, CO 2can accumulate in a large number in microbial cell, and directly upset the normal physiological equilibrium of microorganism, hinder the breeding of microorganism to reach the effect of fungus-proof antisepsis.
From the fresh-keeping test and application effect of controlled atmospheric packing, controlled atmospheric packing is carried out in the distribution ratio determined, the storage period of pakchoi can reach 45 days, more than 96% pakchoi color is vivid, all there is not gas injury phenomenon and yellow, ease back even rot etc. quality deterioration phenomenon, fresh-keeping effect is good.Therefore this test prove controlled atmospheric packing fresh-keeping be safety and effective.
Described freshness protection package is selected polyethylene (PE) material and is had gas-premeable, to described O 2permeability be 3900mL/m 224h0.1MPa ~ 13000mL/m 224h0.1MPa *; To described CO 2gas-premeable is 7700mL/m 224h0.1MPa *; The thickness of polyethylene (PE) material freshness protection package is 25.4 μm.
Described " O 2permeability be 3900mL/m 224h0.1MPa ~ 13000mL/m 224h0.1MPa " implication refer under the pressure of 0.1 MPa, often through the O of the freshness protection package of 24 hours every square metre of polyethylene materials 2transit dose be 3900 ~ 13000 milliliters.
Described " CO 2gas-premeable is 7700mL/m 224h0.1MPa " implication refer under the pressure of 0.1 milliliter, often through the CO of the freshness protection package of 24 hours every square metre of polyethylene materials 2transit dose be 7700 milliliters.

Claims (2)

1. to an air regulating fresh-keeping method for pakchoi peculiar to vessel, it is characterized in that, the described air regulating fresh-keeping method to pakchoi peculiar to vessel carries out in accordance with the following steps successively:
1). precooling: be placed in rapidly after pakchoi is gathered 2 DEG C, relative humidity be 94% freezer precooling 30 hours;
2). fresh-keeping with freshness protection package: to be placed in by the pakchoi after precooling in the freshness protection package of long 80cm, wide 60cm, each fresh-keeping packed pakchoi amount is 11kg, and makes pakchoi be in loose condition (of surface);
3). in freshness protection package, prepare gas parameter value: utilize high-accuracy gas mixing device to input O to being equipped with in pakchoi freshness protection package 2, CO 2, N 2gas, its parameter value is respectively: O 2concentration is 6%, CO 2concentration is 12%, remaining gas is N 2;
4). enter Storage in cold bank: previous step is prepared the pakchoi freshness protection package after gas and put into freezer and preserve, controlling temperature of ice house is 2 DEG C, and relative humidity is 75%;
5). terminate.
2. according to a kind of air regulating fresh-keeping method to pakchoi peculiar to vessel described in claim 1, it is characterized in that, described freshness protection package is selected polyethylene (PE) material and is had gas-premeable, to described O 2permeability be 3900mL/m 224h0.1MPa ~ 13000mL/m 224h0.1MPa; To described CO 2gas-premeable is 7700mL/m 224h0.1MPa; The thickness of polyethylene (PE) material freshness protection package is 25.4 μm.
CN201210474089.6A 2012-11-21 2012-11-21 Modified atmosphere preservation method for onboard pakchoi Active CN102919343B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210474089.6A CN102919343B (en) 2012-11-21 2012-11-21 Modified atmosphere preservation method for onboard pakchoi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210474089.6A CN102919343B (en) 2012-11-21 2012-11-21 Modified atmosphere preservation method for onboard pakchoi

Publications (2)

Publication Number Publication Date
CN102919343A CN102919343A (en) 2013-02-13
CN102919343B true CN102919343B (en) 2015-05-06

Family

ID=47634392

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210474089.6A Active CN102919343B (en) 2012-11-21 2012-11-21 Modified atmosphere preservation method for onboard pakchoi

Country Status (1)

Country Link
CN (1) CN102919343B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104322662A (en) * 2014-12-02 2015-02-04 江南大学 Regulating and controlling preservation method for leaf vegetable mixed atmosphere control storage of ocean vessel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159303A (en) * 1996-12-18 1997-09-17 何军 Vacuum pre-refrigerating multi-kind air preservation device and method thereof
CN1351837A (en) * 2001-11-28 2002-06-05 胡东风 Biological gas regulation package and fresh keeping technology
CN101167491A (en) * 2007-11-16 2008-04-30 山东理工大学 Fiddlehead air regulating fresh-keeping method
CN101744032A (en) * 2008-12-22 2010-06-23 北京亿事达都尼制冷设备有限公司 New method for keeping Chinese cabbage fresh
CN102165968A (en) * 2011-04-07 2011-08-31 中国人民解放军63698部队 Method for refreshing fruits and vegetables in ocean vessels

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1159303A (en) * 1996-12-18 1997-09-17 何军 Vacuum pre-refrigerating multi-kind air preservation device and method thereof
CN1351837A (en) * 2001-11-28 2002-06-05 胡东风 Biological gas regulation package and fresh keeping technology
CN101167491A (en) * 2007-11-16 2008-04-30 山东理工大学 Fiddlehead air regulating fresh-keeping method
CN101744032A (en) * 2008-12-22 2010-06-23 北京亿事达都尼制冷设备有限公司 New method for keeping Chinese cabbage fresh
CN102165968A (en) * 2011-04-07 2011-08-31 中国人民解放军63698部队 Method for refreshing fruits and vegetables in ocean vessels

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
不结球白菜抗冻性鉴定及其相关性状的研究;朱月林 等;《园艺学报》;19850531;第16卷(第2期);第127-133页 *
于平.青菜呼吸动力学方程的研究.《黑龙江商学院学报(自然科学版)》.2000,第16卷(第4期),第27-30页. *
叶菜类蔬菜保鲜技术研究进展;朱军伟 等;《湖南农业科学》;20111115(第21期);第90-93页 *
梁晶晶 等.气调和1-MCP对青菜保鲜贮藏的影响.《食品研究与开发》.2006,第27卷(第9期),第126-129页. *
莫文贵.果蔬气调贮藏技术与舰船应用条件.《海军医学杂志》.2008,第29卷(第2期),第134-137页. *

Also Published As

Publication number Publication date
CN102919343A (en) 2013-02-13

Similar Documents

Publication Publication Date Title
Zhu et al. Effects of modified atmosphere vacuum cooling (MAVC) on the quality of three different leafy cabbages
CN103734269B (en) A kind of agent keeping vegetable fresh, preparation method and application thereof
CN101011178A (en) Gas-conditioning fresh-keeping method for double spore mushroom
CN103004968A (en) Modified atmosphere preservation method of fresh honey peaches
CN102302048B (en) High-oxygen and high-carbon-dioxide air conditioned fresh-keeping method of broccoli
Lanka et al. Prolonging the postharvest life of papaya using modified atmosphere packaging
Kittemann et al. Effect of high temperature and 1-MCP application or dynamic controlled atmosphere on energy savings during apple storage
Luna et al. Influence of nutrient solutions in an open‐field soilless system on the quality characteristics and shelf life of fresh‐cut red and green lettuces (Lactuca sativa L.) in different seasons
Yao et al. Hydrogen sulfide maintained the good appearance and nutrition in post-harvest tomato fruits by antagonizing the effect of ethylene
CN103734261A (en) Comprehensive method for refrigerating and refreshing waxberries
CN102919343B (en) Modified atmosphere preservation method for onboard pakchoi
Xu et al. Extending the shelf life of Victoria table grapes by high permeability and fungicide packaging at room temperature
Kirandeep et al. Effect of temperature and headspace O2 and CO2 concentration on the respiratory behaviour of fresh yellow bell-pepper (Oribelli)
de Almeida Teixeira et al. Storage of ‘Palmer’mangoes in low-oxygen atmospheres
CN104686643A (en) Method for keeping harvested Chinese toon sprouts fresh
CN102919342A (en) Modified atmosphere preservation method for onboard leaf lettuce
CN102934684B (en) Modified atmosphere preservation method of marine brassica chinensis L.
CN102934685B (en) Modified atmosphere preservation method of marine brassica chinensis L.
CN104982510A (en) Method for prolonging storage period of figs by using controlled atmosphere
CN102696753A (en) Green pepper preservative solution
CN102487997B (en) Biological pre-treatment freshness-keeping method for green vegetable heads
Peano et al. Improvement of plum storage with modified atmosphere packaging
Peano et al. Evolution of qualitative characteristics during blueberry fruit storage in a modified atmosphere
Viškelis et al. Quality changes of green onions stored in modified atmosphere
Chun et al. Effect of controlled atmosphere conditions on the quality and internal disorder of early season'Fuji'apples during storage

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 300409 Beichen District, Tianjin Road, northeast of science and Technology Park, hi tech Park Road, No. 66, No.

Applicant after: TIANJIN CNRO SCIENCE TECHNOLOGY CO., LTD.

Address before: 300409 Beichen District, Tianjin Road, northeast of science and Technology Park, hi tech Park Road, No. 66, No.

Applicant before: Tianjin Cero Technology Development Co., Ltd.

C53 Correction of patent for invention or patent application
COR Change of bibliographic data

Free format text: CORRECT: APPLICANT; FROM: TIANJIN CNRO SCIENCE-TECHNOLOGY DEVELOPMENT CO., LTD. TO: TIANJIN SENLUO TECHNOLOGY CO., LTD.

GR01 Patent grant
C14 Grant of patent or utility model
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Modified atmosphere preservation method for onboard pakchoi

Effective date of registration: 20170310

Granted publication date: 20150506

Pledgee: Bank of Ningxia Tianjin branch, Limited by Share Ltd, Beichen

Pledgor: TIANJIN CNRO SCIENCE TECHNOLOGY CO., LTD.

Registration number: 2017990000179

PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20200313

Granted publication date: 20150506

Pledgee: Bank of Ningxia Tianjin branch, Limited by Share Ltd, Beichen

Pledgor: TIANJIN CNRO SCIENCE TECHNOLOGY Co.,Ltd.

Registration number: 2017990000179

PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of invention: Modified atmosphere preservation method for onboard pakchoi

Effective date of registration: 20200313

Granted publication date: 20150506

Pledgee: Bank of Ningxia Tianjin branch, Limited by Share Ltd, Beichen

Pledgor: TIANJIN CNRO SCIENCE TECHNOLOGY Co.,Ltd.

Registration number: Y2020990000170

PE01 Entry into force of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right