CN101228893A - Fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen - Google Patents

Fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen Download PDF

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Publication number
CN101228893A
CN101228893A CNA2008100184601A CN200810018460A CN101228893A CN 101228893 A CN101228893 A CN 101228893A CN A2008100184601 A CNA2008100184601 A CN A2008100184601A CN 200810018460 A CN200810018460 A CN 200810018460A CN 101228893 A CN101228893 A CN 101228893A
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China
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fresh
cut
keeping
lotus root
oxygen
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CNA2008100184601A
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Chinese (zh)
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卢立新
蔡莹
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Jiangnan University
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Jiangnan University
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Abstract

The invention relates to a hyperoxic modified atmosphere packaging method for fresh-cut lotus roots, which belongs to a field of fruit and vegetable preserving and storing technique, which is characterized in that the fresh lotus roots being selected and cleaned are dipped in an NaClO solution and then removed the pedicels after being dried by dripping, cut off against the node and cut crossly into slices; the cut lotus slices are dipped in a preservative solution comprising Vc, calcium propionate, cysteine and water, and placed in a packing tray after being dried with air and then filled into configuration air, encased with high barrier composite membrane and stored in a temperature of 0-5 DEG C. The invention aims at solving the problem that the fresh-cut lotus roots after cutting process are easy to brown, rot and degrade the quality during storing and transporting, and can effectively inhibit the spoilage and the reduction of Vc content of the fresh-cut lotus roots, keep good color of the product, ensure the product editable safety and remarkably prolong the shelf life of the product.

Description

Fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen
Technical field
The present invention relates to a kind of fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen, belong to the fruit and vegetable fresh preservation technical field.
Background technology
Fresh fruit of vegetables is a perishable farm products, according to estimates the annual postharvest fruit and vegetable in the whole world since the old and feeble rotten and loss of rotting to cause on average up to 30%, developed country is 10-20%, and in the developing country that lacks refrigerating equipment, postharvest fruit and vegetable loses up to 30-50%.On traditional fruits and vegetables deepfreeze preservation technique basis, in recent years, controlled atmospheric packing (MAP), in conjunction with different pretreated associating controlled atmospheric packings as the effective postharvest technology of fruits and vegetables of advanced person, in the marketing packing of fruit and vegetable food, progressively obtain commercial the application.
MAP utilizes gas seed selection property permeable membrane that fruit and vegetable food is implemented packing, relies on the respiration of fruits and vegetables self and the gas permeability of film to regulate suitable low O in the also maintenance package pack 2With high CO 2Concentration suppresses and keeps the lower respiratory rate of product.The effect of MAP and quality depend primarily on the adjusting of gas ingredients, humiture in the packing container.
At present, the subject matter of fruits and vegetables MAP is the gas permeability deficiency of the commercial film of packing, thereby cause the anaerobic environment in the packing container, especially the easier anaerobic environment that the causes when fruits and vegetables of breathing at height, fresh-cut fruit and vegetable MAP storage, cause product anerobic glycolysis to produce peculiar smell, and promote some anaerobism harmful microbe growth and breedings, not only influence product quality and might cause food poisoning; Can form higher relative humidity in the packing container simultaneously, too high moisture also makes microbial reproduction accelerate, and expedite product is putrid and deteriorated.Both at home and abroad in order to prevent the generation of fruits and vegetables, fresh-cut fruit and vegetable MAP anaerobic environment, mainly be to set about at present, but, still do not have the quotient of ideals of the enough big suitable product MAP storage of gas permeability to come out with film regrettably up in recent years from the film of development highly-breathable.Adopting perforated film is the effective means that improves the packaging film gas permeability at present.Though adopt perforated film can improve gas permeability, prevent the hypoxemia injury, can increase the chance of microorganism invasion in rising dehydration of product and the environment and cause taint of odour between different product.Therefore, be necessary to seek hypoxemia other treatment technology in addition, with the ripening and senescence of control product and the edible safety that rots to take place and guarantee.
The hyperoxia controlled atmosphere be propose in the world in recent years the fruit and vegetable fresh preservation new technology.Studies show that, adopt the hyperoxia of debita spissitudo to handle ripening and senescence, Tissue Browning, pathogenic microorganism growth and the generation of rotting that both can suppress some fruits and vegetables, can avoid simultaneously traditional hypoxemia air conditioned storage easily to cause the deficiency of fruits and vegetables anaerobic respiration and some anaerobism pathogenic bacteria of promotion growth and breeding on fruits and vegetables again, the developing direction that meets world today's postharvest technology of fruits and vegetables has good prospects for application in fresh perishable fruits and vegetables, fresh-cut fruit and vegetable product shelf life are fresh-keeping.Fresh-keeping effect yet there are no the research report but relevant so far hyperoxia controlled atmospheric packing is to fresh-cut lotus root.
Along with the raising of people's living standard and the quickening of rhythm of life, fresh-cut fruit and vegetable is fresh with it, nutrition, advantage such as convenient, healthy, quick and enjoy the consumer to favor.Fresh-cut fruit and vegetable is meant the fresh fruit of vegetables raw material through steps such as cleaning, trimming, cuttings, packs the direct-edible and cooking with plastic film bag or with the outer coating plastic film of plastic pallet splendid attire at last.But fresh-cut fruit and vegetable is compared with former whole fruits and vegetables, and institutional framework is suffered artificial destruction, easily induces a series of biochemical reactions that are unfavorable for that its nutritional quality keeps, and can show its sense organ and the shoddy change of nutriment in storage, as brown stain, softening etc.; Increase the chance of microbial infection simultaneously, shelf life significantly reduces.
Lotus rhizome is the agricultural product of main product in China Yangtze river basin and southern area, because of its little sweet and tasty mouthful, can eat raw also and can cook, and medical value Gao Ershen is liked by the consumer simultaneously.In recent years, along with the improving constantly of people's quality of life, rhythm of life are accelerated and the needs of special occasions, the demand of fresh-cut lotus root is also risen thereupon.But the moisture content height of fresh lotus rhizome, respiratory intensity is big, and physiological metabolism is vigorous, causes fresh-keeping very difficult after the lotus rhizome cutting processing, just can lose commodity value because of brown stain takes place for serious dehydration shrinkage, surface in 2~3 days after cutting processing.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby provide a kind of fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen, this method be at fresh-cut lotus root after cutting processing, brown stain easily takes place in the transporting procedures, rot and quality decline problem, can effectively suppress the reduction of the rotten and Vc content of fresh-cut lotus root, keep the good color and luster of product, guarantee the security that product is edible, and the shelf life of energy significant prolongation product.
Main solution of the present invention is achieved in that
Fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen of the present invention is characterized in that adopting following processing step:
1, the fresh lotus rhizome after will cleaning is immersed in the 1%NaClO solution soak time: 3~5 minutes, drain the base of a fruit at normal temperatures;
2, cut off the thin slice that also crosscut becomes 3~5mm by joint; Thin slice is soaked in the fresh-keeping liquid and takes out after 3~5 minutes, and blowing was at room temperature dried 10~15 minutes; Insert in the packaging pallet box, charge into gas in the tray box, and adopt high gas barrier property composite membrane encapsulation;
3, preserve down in 0~5 ℃ behind the envelope box.
Described fresh-keeping liquid quality percentage composition is: 0.8%~1.2%V C, 0.4%~0.6% calcium propionate and 0.4%~0.6% cysteine, all the other are that water is formulated.
It is 80%~95%O that described gas adopts volume ratio 2, all the other are N 2Mixed configuration forms.
Described tray box adopts polypropylene to make.
Described high gas barrier property composite membrane adopts oriented polypropylene/polyethylene or oriented polypropylene/polyester composite membrane.
Compared with the prior art the present invention has the following advantages:
1, avoids the low O of tradition 2High CO 2The deficiency of controlled atmosphere: the present invention utilizes high concentration O 2Fresh-cut fruit postharvest senescence, pathogeny growth of microorganism and rotten inhibitory action are come fresh-keeping fresh-cut fruit, can avoid the deficiency of traditional hypoxemia controlled atmosphere.
2, efficient: as to adopt hyperoxia controlled atmosphere preservation technique of the present invention can significantly suppress fresh-cut lotus root and rot, keep its good color and luster, effectively suppress the reduction of its Vc content, fresh-cut lotus root is reached more than 12 days at the shelf life under 5 ℃, and the shelf life of unpackaged reference product only is 2~3 days.
3, technology is new, and application prospect is wide: the high oxygen that forms based on the present invention exploitation packing technique of stealthily substituting, the fresh-cut fruit and vegetable preservation and freshness new technology for a kind of novel concept has wide commercial applications prospect.
The specific embodiment
Following the present invention will be further described in conjunction with the embodiments:
Embodiment one:
A kind of fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen of the present invention, adopt following processing step:
To be immersed in through the fresh lotus rhizome after selecting, cleaning in the 1%NaClO solution, soak 3 minutes, remove the base of a fruit after draining; Cut off the thin slice that also crosscut becomes 3mm by joint; Lotus root sheet after cutting is soaked in the quality percentage composition is: 1%V C, 0.5% calcium propionate and 0.5% cysteine, all the other are in the formulated fresh-keeping liquid of water, soak after 3 minutes and take out; Blowing (room temperature) is dried after 10 minutes and is inserted in the polypropylene tray box, and charging into volume ratio in the tray box is 95%O 2With 5%N 2Mist, adopt oriented polypropylene/polyethylene composite film envelope box.Reach more than 15 days at the shelf life under 5 ℃.
Embodiment two: a kind of fresh-cut lotus root hyperoxia of the present invention controlled atmosphere fresh-keeping package technology method, adopt following processing step:
The present invention will be immersed in 1%NaClO solution 4 minutes through the fresh lotus rhizome after selecting, cleaning, remove the base of a fruit after draining; Cut off the thin slice that also crosscut becomes 4mm by joint; Lotus root sheet after cutting is soaked in the quality percentage composition is: 1%V C, 0.5% calcium propionate, 0.5% cysteine, all the other are in the formulated fresh-keeping liquid of water, soak after 4 minutes and take out; Blowing (room temperature) is dried after 10 minutes and is inserted in the polypropylene tray box, and charging into volume ratio in the tray box is 85%O 2With 15%N 2Mist, adopt oriented polypropylene/polyethylene composite film envelope box.Reach more than 13 days at the shelf life under 5 ℃.
Embodiment three: a kind of fresh-cut lotus root hyperoxia of the present invention controlled atmosphere fresh-keeping package technology method, adopt following processing step:
The present invention will be immersed in 1%NaClO solution 5 minutes through the fresh lotus rhizome after selecting, cleaning, remove the base of a fruit after draining; Cut off the thin slice that also crosscut becomes 5mm by joint; Lotus root sheet after cutting is soaked in the quality percentage composition is: 1%V C, 0.5% calcium propionate, 0.5% cysteine, all the other are in the formulated fresh-keeping liquid of water, soak after 4 minutes and take out; Blowing (room temperature) is dried after 15 minutes and is inserted in the polypropylene tray box, and charging into volume ratio in the tray box is 80%O 2With 20%N 2Mist, adopt oriented polypropylene/polyester composite membrane envelope box.Reach more than 12 days at the shelf life under 5 ℃.

Claims (5)

1. fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen is characterized in that adopting following processing step:
(1), the fresh lotus rhizome after will cleaning is immersed in the 1%NaClO solution soak time: 3~5 minutes, drain the base of a fruit at normal temperatures;
(2), cut off the thin slice that also crosscut becomes 3~5mm by joint; Thin slice is soaked in the fresh-keeping liquid and takes out after 3~5 minutes, and blowing was at normal temperatures dried 10~15 minutes; Insert in the packaging pallet box, charge into gas in the tray box, and adopt high gas barrier property composite membrane encapsulation;
(3), preserve down in 0~5 ℃ behind the envelope box.
2. fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen according to claim 1 is characterized in that described fresh-keeping liquid quality percentage composition is: 0.8%~1.2%V C, 0.4%~0.6% calcium propionate and 0.4%~0.6% cysteine, all the other are that water is formulated.
3. fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen according to claim 1 is characterized in that it is 80%~95%O that described gas adopts volume ratio 2, all the other are N 2Mixed configuration forms.
4. fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen according to claim 1 is characterized in that described tray box adopts polypropylene to make.
5. fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen according to claim 1 is characterized in that described high gas barrier property composite membrane adopts oriented polypropylene/polyethylene composite film or oriented polypropylene/polyester composite membrane.
CNA2008100184601A 2008-02-02 2008-02-02 Fresh-cut lotus root fresh-keeping method of modified atmosphere packing with high oxygen Pending CN101228893A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102197841A (en) * 2010-03-22 2011-09-28 西北农林科技大学 Antistaling agents for fresh kiwi fruit slices, fresh-keeping products and fresh-keeping method
CN103125583A (en) * 2013-03-25 2013-06-05 山东理工大学 Agaricus bisporus high-oxygen modified atmosphere freshness retaining method
ES2530442A1 (en) * 2015-02-05 2015-03-02 Carne Juan Soler Conservation procedure for peeled fruit and peeled fruit product (Machine-translation by Google Translate, not legally binding)
CN104909069A (en) * 2015-05-31 2015-09-16 宁波市农业科学研究院 Logistics vibration-reducing packaging method for waxberries
CN105557986A (en) * 2016-01-15 2016-05-11 江苏省农业科学院 Modified atmosphere packaging, preservation and storage method of lotus roots and application
CN107242199A (en) * 2017-08-01 2017-10-13 合肥合丰牧业有限公司 A kind of utilization lotus rhizome lifts the method for breeding of goat meat
CN107969476A (en) * 2017-12-07 2018-05-01 浙江润物网络科技有限公司 A kind of honey peach fresh-keeping method of modified atmosphere packing

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102197841A (en) * 2010-03-22 2011-09-28 西北农林科技大学 Antistaling agents for fresh kiwi fruit slices, fresh-keeping products and fresh-keeping method
CN103125583A (en) * 2013-03-25 2013-06-05 山东理工大学 Agaricus bisporus high-oxygen modified atmosphere freshness retaining method
ES2530442A1 (en) * 2015-02-05 2015-03-02 Carne Juan Soler Conservation procedure for peeled fruit and peeled fruit product (Machine-translation by Google Translate, not legally binding)
CN104909069A (en) * 2015-05-31 2015-09-16 宁波市农业科学研究院 Logistics vibration-reducing packaging method for waxberries
CN105557986A (en) * 2016-01-15 2016-05-11 江苏省农业科学院 Modified atmosphere packaging, preservation and storage method of lotus roots and application
CN107242199A (en) * 2017-08-01 2017-10-13 合肥合丰牧业有限公司 A kind of utilization lotus rhizome lifts the method for breeding of goat meat
CN107969476A (en) * 2017-12-07 2018-05-01 浙江润物网络科技有限公司 A kind of honey peach fresh-keeping method of modified atmosphere packing

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Open date: 20080730