CN102960433A - Green composite fruit-dedicated fresh-keeping agent suitable for soaking and spraying - Google Patents

Green composite fruit-dedicated fresh-keeping agent suitable for soaking and spraying Download PDF

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Publication number
CN102960433A
CN102960433A CN 201210327949 CN201210327949A CN102960433A CN 102960433 A CN102960433 A CN 102960433A CN 201210327949 CN201210327949 CN 201210327949 CN 201210327949 A CN201210327949 A CN 201210327949A CN 102960433 A CN102960433 A CN 102960433A
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CN
China
Prior art keywords
fruit
fresh
keeping agent
fruits
soaking
Prior art date
Application number
CN 201210327949
Other languages
Chinese (zh)
Inventor
赵丰云
于坤
郁松林
Original Assignee
赵丰云
于坤
郁松林
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 赵丰云, 于坤, 郁松林 filed Critical 赵丰云
Priority to CN 201210327949 priority Critical patent/CN102960433A/en
Publication of CN102960433A publication Critical patent/CN102960433A/en

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Abstract

The invention discloses a novel green and environment-friendly composite fruit-dedicated fresh-keeping agent, which is composed of chitosan with a mass volume concentration of 0.75%-1.5%, edible level hydrogen peroxide with a mass volume concentration of 0.5%-2%, calcium chloride with a mass volume concentration of 2%-8%, and a 0.1% acetic acid solution. By spraying the fresh-keeping agent on fruit surfaces or soaking fruits with it, on the one hand, a sterilization effect can be achieved, and on the other hand, a layer of protective film can form on the fruit surfaces to inhibit fruit respiration, thus significantly reducing the occurrence degree of postharvest diseases of the fruits, and prolonging the storage period and shelf life of the fruits. No chemical residue is left after use, so that the fresh-keeping agent provided in the invention is green, safe and reliable. In addition, the fresh-keeping agent has a simple use method, can be applied to soaking and spraying treatments, has wide application, and is easy for popularization and application.

Description

A kind of green compound fruit preservative specially of all suitable type of spray that soaks
Technical field:
The present invention relates to the fresh-keeping field of fruit, particularly soak the green fruit preservative specially of all suitable type of spray
Background field:
The traditional fruit freshness preserving pattern of China is mainly controlled the generation of postharvest diseases of fruit to spray chemical preservative or chemical agent, along with the raising of health of people consciousness, and the direction green, healthy, that safety becomes food fresh keeping future development.The corresponding focus that becomes domestic and international research in order to the chemical agent of green natural noresidue.
Shitosan (chitosan, CTS) have another name called chitin, chitin, chitin, annual storage at occurring in nature is about 10,000,000,000 tons, to be only second to cellulosic second largest natural polymer, since the sixties, shitosan namely is widely used in a plurality of fields such as weaving, printing and dyeing, papermaking, food and medical treatment.Shitosan improves the fruit resistance owing to have the biocidal property of wide spectrum, and the characteristics of delayed fruit aging become domestic and international study hotspot at fresh preservation recently.But it is fresh-keeping at normal temperatures that shitosan fresh-keeping effect at low temperatures is better than, and under normal temperature condition, single shitosan is processed fruit, can not obtain desirable experiment effect.
The reduction respiration of fruits speed that the inventor has at research shitosan itself, keep higher soluble solid and titratable acid content, postpone peroxidase, catalatic activity change, reduce the activity of polyphenol oxidase, significantly improve the fruit resistance, on the characteristics basis of delayed fruit aging, in conjunction with the research tendency of domestic and international fresh preservation, the present invention is proposed.
Summary of the invention:
The present invention seeks to propose a kind of fruit to be soaked all suitable compound preservative specially of novel green of spray, acting as of fruit killed the fruit surface bacterium, form one deck preservative film at fruit surface, reduce the respiration of fruit, delayed fruit is old and feeble.And green non-poisonous, without chemical residual, can not produce injury to human body.
A kind of fruit is soaked all suitable compound preservative specially of novel green of spray, it is characterized in that mass concentration is the shitosan of 0.75%-1.5% concentration, other hydrogen peroxide of the edible grade of mass concentration 0.5%-2%, mass concentration is the calcium chloride of 2%-8% and 0.1% acetic acid solution, and all the other form for water.
A kind of fruit is soaked all suitable compound preservative specially of novel green of spray, its allocation plan is for to be dissolved in 1.00% acetic acid solution with shitosan, then the pH value of adjusting chitosan solution with the NaoH solution of 2mol/L is 5.5-6, the polysorbas20 of adding 0.2% is made surperficial activator, after chitosan solution is stable, the calcium chloride dissolving that adds 2%-8%, encapsulation process behind the hydrogen peroxide of adding 0.5%-2%.
A kind of fruit is soaked all suitable compound preservative specially of novel green of spray, its technical scheme is: the fruit cleaning after 1, will plucking, remove invalid fruit after, fruit was immersed in this antistaling agent 1 minute, take out afterwards and naturally dry Preservation Treatment.2, the fruit cleaning after will plucking, remove invalid fruit after, this antistaling agent evenly is sprayed on fruit surface, take complete wetting as standard, after having sprayed, dry processing.
The present invention has compared following characteristics with fruit antistaling agent in the past:
Nontoxic, green, residual without chemical agent completely
Fruit antistaling agent in the past in use, often the applied chemistry medicament chemical residual occurs as bactericide, the present invention is take the hydrogen peroxide of food-grade as bactericide, and is without any chemical residual, harmless after using.
With strong points, efficient is high, gives full play to the effect of various compositions.
The film forming that shitosan is good, the bactericidal properties that peroxide hydrogen is good, the fresh-keeping property that calcium chloride is good makes this product in use can fully play the effect of various compositions, the freshness date of extending fruit.
It is all suitable, easy to use to soak spray, is widely used
This product is soaked fruit or sprayed fruit and all can obtain preferably fresh-keeping effect, and is easy to use.The present invention not only can be so that be engaged in this professional personage and use, and for the consumer, the retailer all can use.
The specific embodiment:
A kind of fruit is soaked all suitable compound preservative specially of novel green of spray, it is characterized in that mass concentration is the shitosan of 0.75%-1.5% concentration, other hydrogen peroxide of the edible grade of mass concentration 0.5%-2%, mass concentration is the calcium chloride of 2%-8% and 0.1% acetic acid solution, and all the other form for water
Specific embodiment one
Mass concentration is that 1% shitosan, mass concentration are that other hydrogen peroxide of 1% edible grade, mass concentration are 4% calcium chloride and 0.1% acetic acid solution, and all the other are treated for the reagent that water forms.After removing invalid fruit after grape fruit is plucked, fruit was immersed in this antistaling agent 1 minute, naturally dries after taking out, deepfreeze is processed, compare storage period 20-30 days that can prolong grape with control treatment, its fruit drop rate, shattering rate all are lower than contrast, and marketing quality is kept.
Specific embodiment two
Mass concentration is that 1% shitosan, mass concentration are that other hydrogen peroxide of 1% edible grade, mass concentration are 4% calcium chloride and 0.1% acetic acid solution, and all the other are the reagent that water forms.Remove invalid fruit after grape fruit is plucked after, fruit was immersed in this antistaling agent 1 minute, naturally dries after taking out, the processing of normal temperature shelf is compared shelf life 3-7 days that can prolong grape with control treatment.
Specific embodiment three
Mass concentration is that 1% shitosan, mass concentration are that other hydrogen peroxide of 0.5% edible grade, mass concentration are 6% calcium chloride and 0.1% acetic acid solution, and all the other are the reagent that water forms.Remove invalid fruit after strawberry fruit is plucked after, this reagent evenly is sprayed on the strawberry fruit surface, cryopreservation is processed, and compares with untreated control to prolong 7-10 days strawberry preservation phase.
Specific embodiment four
Mass concentration is that 1% shitosan, mass concentration are that other hydrogen peroxide of 0.5% edible grade, mass concentration are 6% calcium chloride and 0.1% acetic acid solution, and all the other are the reagent that water forms.Remove invalid fruit after strawberry fruit is plucked after, this reagent evenly is sprayed on the strawberry fruit surface, the normal temperature shelf are processed, and compare with untreated control to prolong 2-5 days strawberry preservation phase.

Claims (4)

1. soak the green composite antistaling agent for fruits and vegetables of all suitable type of spray, it is characterized in that: consist of the following composition by mass body volume concentrations ratio: the calcium chloride of the shitosan of 0.75%-1.5% concentration, other hydrogen peroxide of the edible grade of 0.5%-2%, 2%-8%, 0.1% acetic acid solution form.
2. prescription according to claim 1 is characterized in that, after solvent configures, is that to regulate PH be between the 5.4-6 for the NaOH solution of 0.1mol/L with concentration.
Recipe configuration according to claim 1 rationally after, its using method to fruits and vegetables is spray-type or soak type, sprays take the surface infiltration as standard, soak type be to soak one minute in solution, preserves processing after taking out nature and drying again.
4. shitosan according to claim 1, hydrogen peroxide, calcium chloride, acetic acid are the edible rank.
CN 201210327949 2012-08-29 2012-08-29 Green composite fruit-dedicated fresh-keeping agent suitable for soaking and spraying CN102960433A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201210327949 CN102960433A (en) 2012-08-29 2012-08-29 Green composite fruit-dedicated fresh-keeping agent suitable for soaking and spraying

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201210327949 CN102960433A (en) 2012-08-29 2012-08-29 Green composite fruit-dedicated fresh-keeping agent suitable for soaking and spraying

Publications (1)

Publication Number Publication Date
CN102960433A true CN102960433A (en) 2013-03-13

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103704319A (en) * 2013-12-20 2014-04-09 浙江医药高等专科学校 Processing and preservation method of lettuce
CN105941610A (en) * 2016-04-25 2016-09-21 广东省农业科学院果树研究所 Method of preservation and fresh-keeping of fruit and vegetable after picking

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103704319A (en) * 2013-12-20 2014-04-09 浙江医药高等专科学校 Processing and preservation method of lettuce
CN103704319B (en) * 2013-12-20 2015-03-25 浙江医药高等专科学校 Processing and preservation method of lettuce
CN105941610A (en) * 2016-04-25 2016-09-21 广东省农业科学院果树研究所 Method of preservation and fresh-keeping of fruit and vegetable after picking

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Application publication date: 20130313