CN105432769A

CN105432769A - Method for fresh keeping of dishcloth gourds by utilizing acidic electrolyzed water

Info

Publication number: CN105432769A
Application number: CN201510785488.8A
Authority: CN
Inventors: 钱春桃; 罗新希
Original assignee: Nau (changshu) New Rural Development Research Institute Co Ltd
Current assignee: Nau (changshu) New Rural Development Research Institute Co Ltd
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2016-03-30

Abstract

The invention relates to a method for fresh keeping of dishcloth gourds by utilizing acidic electrolyzed water. The method comprises the following steps of (1) preparing an acidic electrolyzed water stock solution, and diluting the prepared acidic electrolyzed water stock solution to obtain acidic electrolyzed water (liquid A) of which the available chlorine concentration is 50mg/L-60mg/L; (2) picking commercial maturity dishcloth gourds which have consistent shapes, sizes and color, and are clean, free from diseases and insect pests, and free from mechanical injury, or picking dishcloth gourds at other times, and then dispersing field heat; (3) putting the picked dishcloth gourds in the liquid A for soaking for 5 minutes, and drying the soaked dishcloth gourds indoors through natural ventilation; and (4) transferring the dried dishcloth gourds into polyethylene film freshness protection packages of which the thickness is 0.03mm, performing non-ironing sealing packaging, and then putting the packaged freshness protection packages in dark conditions of 13 DEG C for storage. After the dishcloth gourds are treated by the method, the rate of weight loss and the brown stain degree can be reduced, the generation of diseases and decomposition of the dishcloth gourds can be avoided, and a good storage and fresh keeping effect can be achieved. The method has the characteristics of being simple to operate, notable in effect and the like.

Description

A kind of method utilizing the fresh-keeping sponge gourd of acidic electrolytic water

Technical field

The present invention relates to the application of brine electrolysis on fresh-keeping of vegetables, be specifically related to a kind of method utilizing the fresh-keeping sponge gourd of subacidity brine electrolysis, rear sponge gourd is adopted in the brine electrolysis process utilizing effective chlorine density different, filter out and significantly can reduce sponge gourd weight-loss ratio and brown stain degree, prevention sponge gourd rots and the effective chlorine density of brine electrolysis of storage disease, extend sponge gourd shelf life, keep adopting rear sponge gourd quality.

Background technology

Sponge gourd belongs to melon vegetables, is the vegetables kind of China's summer and autumn, not storage tolerance after adopting, and quality deterioration is rapid, and dehydration is serious, and along with pericarp yellow, wilting, pulp, lose original commodity value, shelf life is shorter.Low temperature can delay the metabolism of postharvest fruit and vegetable, reaches the object extending storage period.But sponge gourd is more responsive to low temperature, just has lower than 13 ° of C and damage to plants caused by sudden drop in temperature generation.Be in low temperature for a long time also can occur to rot and disease, sponge gourd storage disease is melon epidemic disease mainly, and pathogeny may be carry disease germs in field.

Brine electrolysis refers to that water carries out electrochemical treatments in special generating means, the index such as the pH value of water, oxidation-reduction potential (ORP value) is changed and produce there is the acid electrolyzed functional water of specific function and the general name of alkali ion water, also can be described as electrolyzed functional water or ion activation water.The advantages such as brine electrolysis has effect of spectrum sterilization, and noresidue is free from environmental pollution, nontoxic to people, has no side effect, safe and reliable, produces conveniently, with low cost.The functional study early start of brine electrolysis is in the Japan of phase early 1980s, and now in medical treatment, food processing, cultivation, and the field such as gardening obtains investigation and application widely.It just just starts in the research of preserving fruit and vegetable utilizing, and some result of the tests show at present, and brine electrolysis to oranges and tangerines, Huai Shan, tomato, strawberry, fresh-cut flowers fresh-keeping effect well, obviously extends freshness date.But have no the report that electrolyzed functional water is applied on sponge gourd is fresh-keeping.

Summary of the invention

Technical problem

Easily there is brown stain in order to solve current luffa-smooth loofah at transport, process mesocarp, pulp, rotting, the problem such as pathology, the invention provides a kind of method utilizing the fresh-keeping sponge gourd of acidic electrolytic water, by suppressing sponge gourd respiratory intensity and polyphenol oxidase activity, reduce weight-loss ratio and brown stain degree; Brine electrolysis has sterilizing function simultaneously, significantly can prevent sponge gourd disease and rotten generation.

Technical scheme

The present invention is achieved by the following technical solutions:

1, produce acidic electrolytic water stoste, be diluted to through running water the acidic electrolytic water (A liquid) that effective chlorine density is 50mg/L-60mg/L;

2, shape, size, color and luster is plucked in the morning unanimously, clean, without disease and pest, the commodity maturity sponge gourd of mechanical wound, or the field heat that leaves after other times pluck sponge gourd;

3, sponge gourd is positioned in A liquid soaks 5min, dry at indoor natural ventilating;

4, the sponge gourd dried being transferred to thickness is in the polyethylene film freshness protection package of 0.03mm, exempts from mouth packaging, and preserves under being placed in the dark condition of 13 ° of C.

Beneficial effect

The present invention has the following advantages:

1, by the sponge gourd of this method process after the refrigeration of 10 days, disease-free, the generation of rotting, and weight-loss ratio is about 1.8%, brown stain degree is about 0.2;

2, the raw material of producing of acidic electrolytic water is running water and Nacl, with low cost;

3, along with acidic electrolytic water contacts with air and organic matter etc. with light, the active ingredient be dissolved in wherein can be discharged decomposition, and its ORP value can progressively decline, and is finally reduced to common water, can not cause any residual and chemical hazard to environment and agricultural product.

Detailed description of the invention

Below in conjunction with test, the present invention is further described:

1, brine electrolysis preparation: produce acidic electrolytic water stoste, the acidic electrolytic water that effective chlorine density is 10mg/L, 20mg/L, 30mg/L, 40mg/L, 50mg/L, 60mg/L is diluted to through running water, take deionized water as contrast, the physical and chemical parameter of table 1 is this test use acidic electrolytic water and deionized water;

The physical and chemical parameter of table 1 acidic electrolytic water and deionized water

2, sponge gourd grouping: pluck shape, size, color and luster in the morning unanimously, clean, without disease and pest, the commodity maturity sponge gourd of mechanical wound is some, or the field heat that leaves after other times pluck sponge gourd;

3, different effective chlorine density brine electrolysis process sponge gourd: the sponge gourd of harvesting is equally divided into 7 groups, weigh sponge gourd substance and record, the brine electrolysis being placed in different effective chlorine density respectively soaks 5min, dries at indoor natural ventilating;

4, preserve: the sponge gourd dried being transferred to thickness is in the polyethylene film freshness protection package of 0.03mm, exempt from mouth packaging, and preserve under being placed in the dark condition of 13 ° of C;

5, data statistics: when finding that there is rotten or disease generation, sponge gourd is taken out, and measure weight, brown stain degree, rotting mechanism, the disease incidence (see table 2) of adding up filament carding melon everywhere, the suitable effective chlorine density filtering out the fresh-keeping sponge gourd of brine electrolysis is 50mg/L-60mg/L;

The impact that table 2 acidic electrolytic water is fresh-keeping on sponge gourd

Claims

1. one kind utilizes the method for the fresh-keeping sponge gourd of acidic electrolytic water, it is characterized in that according to data such as the sponge gourd weight-loss ratio obtained after acidic electrolysis water treatment sponge gourd, brown stain degree, disease incidence and rotting mechanism, filter out acidic electrolytic water has better fresh-keeping effect effective chlorine density to sponge gourd, specific as follows:

1. the suitable effective chlorine density of the fresh-keeping sponge gourd of acidic electrolytic water is 50mg/L-60mg/L;

During the fresh-keeping sponge gourd of the acidic electrolytic water 2. utilizing effective chlorine density to be 50mg/L-60mg/L, the sponge gourd field heat that leaves after should plucking in the morning or pluck processes again;

During the fresh-keeping sponge gourd of the acidic electrolytic water 3. utilizing effective chlorine density to be 50mg/L ~ 60mg/L, soak time is 5min.

2. a kind of acidic electrolytic water, to the preservation method of sponge gourd, is characterized by the acidic electrolysis water treatment sponge gourd utilizing suitable effective chlorine density, reduces its weight-loss ratio and brown stain degree, pre-disease prevention and rotten generation according to claim 1.