CN106720258A - The method that lichee pericarp brown stain is controlled using abscisic acid - Google Patents
The method that lichee pericarp brown stain is controlled using abscisic acid Download PDFInfo
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- CN106720258A CN106720258A CN201611165797.6A CN201611165797A CN106720258A CN 106720258 A CN106720258 A CN 106720258A CN 201611165797 A CN201611165797 A CN 201611165797A CN 106720258 A CN106720258 A CN 106720258A
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- lichee
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
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Abstract
The invention discloses a kind of method that utilization abscisic acid controls lichee pericarp brown stain, the inventive method is to prepare the aqueous acid that comes off of reasonable concentration, lichee is then plucked, is packed with sealed polyethylene plastic bag, preserved by the uniform spraying of aqueous acid that will come off again on litchi fruits surface.Scientifical use abscisic acid of the present invention, can effectively reduce the polyphenol oxidase activity and peroxidase activity of lichee, so as to effectively control the generation of lichee pericarp brown stain.Result shows, reduces by more than 75% than control through the lichee pericarp browning index of the aqueous acid spraying that comes off and do not influence litchi pulp taste.The inventive method is simple to operate, low cost, and application efficiency is high.
Description
Technical field
The present invention relates to technical field of litchi preservation, rear lichee pericarp is adopted more particularly, to the control of one kind abscisic acid
The method of brown stain.
Background technology
Abscisic acid (Abscisic Acid, ABA) alias：Abscisin (Abscisin), dormin (Dormin) is a kind of
Bud dormancy, leaves can be caused and suppress the plant hormone of the physiological actions such as cell growth.Nineteen sixty-five confirm, abscisin II and
Dormin is same material, and Uniform Name is abscisic acid.The molecular formula of abscisic acid is C15H20O4, molecular weight is 264.3095,
Shown in structural formula such as formula (I)：
Abscisic acid has promotion abscission of plant organs, suppresses whole plant or isolated organ growth, promotion plant sprout tissue
Into functions such as dormancy, regulation plant leaf stomatal aperture, the accumulation of regulation and control during seed development reserve protein.Arid, cold,
The adverse circumstances such as high temperature, salt marsh and waterlogging can make ABA content in plant increase sharply, and with it plant may can be promoted to generate
New stress protein is relevant, while strengthening stress resistance of plant.
Based on the function such as acid balance plant endogenous hormones and the metabolism of relevant growth activity material that comes off, abscisic acid has promotion
The ability of plant Balance Absorption water, fertilizer and coordination metabolism in vivo, all plays an important roll to improving the quality of crops, yield.
By applying abscisic acid, the amount of application of chemical pesticide can be reduced, have important life many aspects such as quality of agricultural product are improved
Reason active function and application value.
In addition, exogenous abscisic acid can cause the rapid closing of Stoma of Leaves, suppress transpiration, can be used to spend
It is fresh-keeping, or for prevented in the transportation of crop seedling implanting and cultivating wilt；Abscisic acid can also control bud differentiation, regulation
At the florescence, also there is very big application value on flower gardening.
Because abscisic acid belongs to pure natural plant growth regulator, abscisic acid active compound and its composite utility preparation can be extensive
It is applied in the plantation of the industrial crops such as paddy rice, vegetables, flowers, lawn, cotton, Chinese herbal medicine, fruit tree, crop can be improved low
Growth quality and its setting percentage and quality in the adverse circumstance such as temperature, arid, cold spell in spring, salt marsh, pest and disease damage, improve the per unit area yield of middle-and-low-yielding fields
Yield, and reduce chemical pesticide consumption.
During abscisic acid also can be widely used to construction of city afforestation, the water-saving agriculture, the industrialized agriculture that are applied to west area,
In the reconstruction of ecological vegetation, its economic benefit, social benefit, environmental benefit are very notable.
Abscisic acid is the natural materials of generally existing in plant, is naturally contained in water fruits and vegetables, grain that the mankind eat
Have, to the mankind and Environmental security.The raw material that the production technology of abscisic acid active compound is used are nontoxic agricultural byproducts,
Added without harmful essence or material, also existed without toxic element in its chemical constitution.
Lichee (Litchi chinensis Sonn.) is Sapindaceae, and lichee belongs to aiphyllium fruit tree, is China torrid zone
One of important fruit in subtropical zone, be distributed mainly on China Hainan, Guangdong, Guangxi, Fujian, etc. save, belong to the honorable fruit in subtropical zone, be
One of big name fruit of the south of the Five Ridges four, is described as " the good fruit in the south of the Five Ridges ".It originates in south China, there is the cultivation history of more than 2000 years.Now, litchi
Branch China the first big fruit of hot-zone, position is ranked fifth in national fruit industry.The annual production of China's lichee 2015 reaches 220 tons, is
One big pillar industry of China's South China's agricultural economy.
Lichee fruit shape is unique, pericarp has fish-scale shape projection, and pericarp is in cerise when ripe, and color is pleasing.But lichee summer
Maturation, listing season on the occasion of hot weather, pole not storage endurance, it occur frequently that it is a large amount of adopt after lose.It is reported that lichee is annual adopting
Loss afterwards accounts for the 20% of total output.
Lichee fresh-keeping is difficult, is mainly reflected in the red for being difficult to keep pericarp bright-coloured and brown stain does not occur.Pai Chu-yi exists《Lichee figure
Sequence》Middle introduction " if lichee is from this branch, then discoloration on the one, two then fragrant to become, three days then taste become, exogenic color perfume went to the greatest extent on 4th or five ".
This shows that Ancient Times in China just has realized that fresh litchi is fresh-keeping, be most difficult to be to maintain fruit colour constant.Lichee pericarp is once
Generation brown stain, even if pulp is edible, its commodity value also exhausts.And, after denaturation, also can quickly bring disaster to fruit
Meat.Because the main cause of denaturation is pericarp dehydration, after dehydration is withered pericarp be easy to it is susceptible rot, and then band
Dynamic pulp rots.Therefore, delay and prevent and treat the most urgent and most important problem that pericarp browning is lichee fresh-keeping.
The method that all have studied preventing and treating lichee pericarp brown stain both at home and abroad, including using plastic bag packaging, heat treatment, at low temperature
Reason, film etc., and applied chemistry antistaling agent and bio-preservative etc. or using sulfur dioxide is stifling or slow release method etc..But by
It is complicated in the genesis mechanism of denaturation, the reason for have physiology, the reason for have pathology, there is enzymatic browning, there is non-enzymatic browning, it is difficult
Brown stain is effectively controlled with a kind of technology.Such as being packed with plastic film bag can mitigate because of brown stain caused by dehydration, but due to
Air humidity is increased in bag, is conducive to growth of pathogenic bacteria and is infected, so if it is sterilized without chemical bactericide, it is easy for causing
Pathology brown stain.But if using bactericide, Pesticide Residue can be caused again.Meanwhile, heat treatment, film, bio-preservative
Etc. preventing, the effect of brown stain is unstable, it is difficult to the popularization and application in production.Although in addition, low temperature storing and transporting control brown stain effect compared with
It is good, but China rural area major part lichee producing region there is no Cold Chain Logistics condition, cause the technology to be difficult to promote.And, low-temperature treatment
Technology must get up with plastic film bag package combination, and need to be constantly in cryogenic conditions and could obtain better effects.When
After lichee returns to normal temperature condition from low temperature, brown stain is still susceptible to.Sulfur dioxide is stifling or slow release method prevents the effect of brown stain
Fruit preferably, but needs to use acid treatment secondary color, and the lichee pericarp color after secondary color is not bright-coloured enough, Consumers' Acceptance reduction.Cause
This, the method that effectively control denaturation is not yet found at present.
Lichee pericarp brown stain is one of greatest problem of influence China lichee commodity value.Inquire into control lichee pericarp brown stain
Key technology, either to promoting home sale, or China lichee competitiveness in the international market is improved, all with weight
The meaning wanted.Abscisic acid (ABA) is the natural hormone being widely present in plant, and ABA is easily caused fruit, blade and flowers and produces
Give birth to absciss layer and then come off.Although having many researchs on controlling fruits and vegetables to damage to plants caused by sudden drop in temperature with ABA at present, due to the generation machine of denaturation
Reason is complicated, and postharvest browning of Litchi pericarp is fast, is very rare in other fruit, and the prevent-browning scheme of other fruit can not
Simply set uses lichee, and the report that lichee pericarp brown stain is controlled with ABA is there is no at present.
The content of the invention
The problem to be solved in the present invention is directed to the technical deficiency of the preservation method for adopting rear lichee pericarp brown stain, there is provided a kind of
The method that lichee pericarp brown stain is controlled using abscisic acid.
The purpose of the present invention is achieved by the following technical programs：
A kind of method that utilization abscisic acid controls lichee pericarp brown stain is provided, is by the abscisic acid (propylene of 50~200mg/L
Base ethyl barbiturates, ABA) solution with Sprayable spraying on litchi fruits surface.
Preferably, the concentration of the aqueous acid that comes off is 100mg.L-1~200mg.L-1。
Preferably, described litchi fruits do not harvest litchi fruits preferably.It is further preferred that the lichee not harvested refers to
By in the fruit harvested after 1~10 day.
100 described~200mg/L acid solutions that come off are prepared using following methods：Abscisic acid is dissolved in the water,
100~200mg/L is configured to come off acid solution.
Described water is preferably distilled water, running water, well water, mineral water or pure water.
Lichee spraying comes off and harvested storage after acid solution after 1~10 day again.The storage is excellent with reference to existing conventional techniques
Choosing is using sealed polyethylene plastic bag, carton or foam case packing, storage.
Further preferably, lichee spraying comes off after acid solution again after 1~10 day using sealed polyethylene plastic bag, carton
Or 20 DEG C~25 DEG C of environment is stored in after foam case packing.
Beneficial effects of the present invention：
, for the fruit of this special fresh-keeping requirement of lichee, the present invention is first using the aqueous acid that comes off for controlling for the present invention
Make its pericarp browning, there is provided a kind of method that lichee pericarp brown stain is controlled with abscisic acid, especially creatively sum up and adopt
It is swift and convenient to operate with the mode spraying of spraying on lichee surface.Further, the present invention is reasonably determined the use of abscisic acid
Concentration, reaches effective unification of effect and cost.Importantly, the present invention breaches this area fruit post-harvest fresh-keeping prevent-browning
Conventional treatment set, be selected in lichee harvesting before 1~10 day spraying abscisic acid, obtain optimum efficiency.
The present invention, in the gradually aging of storage period pericarp tissue, causes endomembrane system to be destroyed for lichee, meanwhile, it is many
Phenol oxidase and peroxidase activity are improved over time, and are contacted with substrate anthocyanin, cause lichee pericarp
Anthocyanin is degraded, and is oxidized to the quinones substance of black, so that there is the mechanism of brown stain in lichee pericarp, using rationally dense
The abscisic acid of degree can effectively control the activity of aldehydes matter oxidizing ferment in lichee pericarp, reduce or delay the degraded of anthocyanin
And oxidation, so as to reduce the content of generated atrament quinones substance.The present invention is summarized and obtained when the acid solution that comes off
Concentration is 50~200mg/L, and especially during 100~200mg/L, polyphenol oxidase and peroxidase activity are minimum, anthocyanidin
Glycosides degraded is minimum, can effectively control the generation of lichee pericarp.
On this basis, the present invention breaks through this area using the fresh-keeping technology limitation of the method for immersion, creatively uses
Abscisic acid spraying (spraying) method obtains optimal prevent-browning effect.100~200mg/L is come off into acid solution before lichee is adopted
1~10 day spraying after the lichee after spraying is plucked, can effectively reduce the polyphenol oxidase enzyme activity of lichee on litchi fruits surface
Property and peroxidase activity so that effectively control lichee pericarp brown stain generation.Simple to operate, cost of the inventive method
Low, application efficiency is high, easily promotes；Lichee normal temperature storing after treated, it is of good preservation effect.
The lichee that prior art is preserved, the shelf life under normal temperature only has 3~5 days, is lost 20% or so after the adopting of lichee,
Using technology of the invention, the storage period of lichee can extend to more than 7~10 days, storage do not occur within 7~10 days brown stain or
Browning degree is very light, is lost after reducing the adopting of lichee, compared with the technology of existing post-harvest fresh-keeping, it is thus also avoided that immersion treatment
The process that needs dry.The inventive method extends the storage period of lichee, can effectively reduce the economic loss of dealer, solve
Peasant's sells the difficult problem of fruit, it is also possible to increase lichee outlet, with good economic benefit and social benefit, with extensively
Application prospect.
Brief description of the drawings
Fig. 1 adopts influence result of the preceding ABA treatment to lichee pericarp polyphenol oxidase activity.
Fig. 2 adopts influence result of the preceding ABA treatment to lichee peroxidase activity.
Fig. 3 adopts the lichee pericarp brown stain situation comparative result of preceding ABA sprayings treatment and control treatment.
Specific embodiment
The inventive method is further illustrated with reference to specific embodiment.Following embodiments and being for illustration only property of accompanying drawing are said
It is bright, it is impossible to be interpreted as limitation of the present invention.Unless stated otherwise, the reagent raw material for being used in following embodiments is conventional purchased in market
Or the reagent raw material that commercial sources are obtained.Unless stated otherwise, the equipment for being used in following embodiments is commonly used in the art
Equipment.
Embodiment 1
50mg/L is come off aqueous acid spraying litchi fruits surface of 1 day before adopting, be stored in respectively after harvesting 25 DEG C,
20 DEG C, 8 days in 22.5 DEG C of storage, and carry out the evaluation of the pericarp browning order of severity, take 3 groups for the treatment of of above different temperatures
Average value as the present embodiment group data.
Control treatment：By the lichee after harvesting be respectively correspondingly stored in 25 DEG C, 20 DEG C, preserve in 22.5 DEG C of storage
8 days, and the evaluation of the pericarp browning order of severity is carried out, take 3 groups of average values for the treatment of of above data as a control group.
The lichee pericarp browning index ratio control reduction by 75% of the aqueous acid spraying that come off through 50mg/L, as a result such as the institute of table 1
Show.
Embodiment 2
100mg/L is come off aqueous acid spraying litchi fruits surface of 1 day before adopting, 25 are stored in after harvesting respectively
DEG C, 20 DEG C, 8 days in 22.5 DEG C of storage, and carry out the evaluation of the pericarp browning order of severity, take 3 groups of above different temperatures
The average value for the treatment of is used as the present embodiment group data.
Control treatment：By the lichee after harvesting be respectively correspondingly stored in 25 DEG C, 20 DEG C, in 22.5 DEG C of storage, storage
Hide 8 days, and carry out the evaluation of the pericarp browning order of severity, take 3 groups of average values for the treatment of of above data as a control group.
The lichee pericarp browning index ratio control reduction by 80% of the aqueous acid spraying that come off through 100mg/L, as a result such as the institute of table 1
Show.
Embodiment 3
150mg/L is come off aqueous acid spraying litchi fruits surface of 4 days before adopting, lichee is preserved respectively after harvesting
8 days in 25 DEG C, 20 DEG C, 22.5 DEG C of storage, and the evaluation of the pericarp browning order of severity is carried out, take above different temperatures
3 groups of average values for the treatment of are used as the present embodiment group data.
Control treatment：By the lichee after harvesting be respectively correspondingly stored in 25 DEG C, 20 DEG C, in 22.5 DEG C of storage, storage
Hide 8 days, and carry out the evaluation of the pericarp browning order of severity, take 3 groups of average values for the treatment of of above data as a control group.
85% is reduced than control through the come off browning indexs of the lichee pericarp of aqueous acid spraying of 150mg/L, as a result such as table 1
It is shown.
Embodiment 4
200mg/L is come off aqueous acid spraying litchi fruits surface of 10 days before adopting, lichee is store respectively after harvesting
Be hidden in 25 DEG C, 20 DEG C, 8 days in 22.5 DEG C of storage, and carry out the evaluation of the pericarp browning order of severity, take above different temperatures
3 groups of average values for the treatment of as the present embodiment group data.
Control treatment：After by the lichee harvesting after harvesting, 25 DEG C, 20 DEG C, 22.5 DEG C of storage are respectively correspondingly stored in
In storehouse, preserve 8 days, and carry out the evaluation of the pericarp browning order of severity, the average value for taking 3 groups for the treatment of of the above is counted as a control group
According to.
Through 200mg/L come off the lichee pericarp of aqueous acid spraying brown stain disease index than control reduce by 88%, as a result
As shown in table 1.
1 embodiment of table 1~4 controls the comparative result of lichee pericarp brown stain and control
| Treatment | Pericarp browning disease index * |
| Control treatment | 3.2A** |
| Embodiment 1 (ABA50mg/L) | 0.9B |
| Embodiment 2 (ABA100mg/L) | 0.6B |
| Embodiment 3 (ABA150mg/L) | 0.6B |
| Embodiment 4 (ABA200mg/L) | 0.4B |
Note：* the evaluation of the pericarp browning order of severity:With reference to the method for Scott etc. (1982).By lichee pericarp browning degree
It is divided into 1~5 grade.1 grade：Pericarp is entirely red；2 grades：The ratio that browned area accounts for the gross area is less than 25%；3 grades：Browned area accounts for 25%
~50%；4 grades：Browned area accounts for 50%~75%；5 grades：Browned area is more than 75% to being fully browned.Browning index=∑
(the brown stain fruit numbers at different levels × brown stain series)/total investigation fruit number；
Preserved 8 days after the harvesting of * lichee；Different letter surface differences are extremely notable (P≤0.01) after numeral
Embodiment 5 adopts influence experiment of the preceding ABA treatment to lichee pericarp polyphenol oxidase and peroxidase activity
When the concentration of the acid solution that comes off is 100~200mg/L, polyphenol oxidase and peroxidase activity are minimum.With
The acid solution that comes off of 100mg/L it is dense as a example by, at 7 days before adopting be with concentration by lichee 100mg/L the acid solution spraying that comes off after
After preserving 8 days and after control experiment, (litchi shown in polyphenol oxidase and peroxidase activity experimental result as accompanying drawing 1 and accompanying drawing 2
Preserved 8 days after branch harvesting；Different letter surface differences are extremely notable (P≤0.01) after numeral).
Control treatment：By the lychee storage after harvesting 8 days in 25 DEG C, 20 DEG C, 22.5 DEG C of storage, and carry out pericarp
The evaluation of the brown stain order of severity, takes 3 groups of average values of Temperature Treatment of above data as a control group.
The lichee ocular estimate of embodiment 6 is tested
The outward appearance of the lichee after different disposal is as shown in Figure 3.In accompanying drawing 3, upper figure is control treatment, by the litchi after harvesting
Branch is stored in 20 DEG C~25 DEG C of storage the fresh-keeping effect after 8 days.Figure below is to adopt the first 7 days ABA solution with 100mg/L to spray
Cloth lichee, plucks and is stored in and compares the fresh-keeping effect in same storage after 8 days for 7 days after spraying.From accompanying drawing 3, upper figure
Control treatment brown stain is serious, and brown stain the lichee after figure below treatment does not occur or browning degree is very light.
Comparative example 1
10mg/L is come off aqueous acid spraying litchi fruits surface of 1 day before adopting, 20 DEG C of storage is stored in after harvesting
Hide 8 days in storehouse；And the evaluation of the pericarp browning order of severity is carried out, 3 groups of average values for the treatment of of the above are taken as this comparative example 1
Data.
Control treatment：After by the lichee harvesting after harvesting, respectively correspondingly it is stored in 20 DEG C of storage, preserves 8 days,
And the evaluation of the pericarp browning order of severity is carried out, take 3 groups of average values for the treatment of of above data as a control group.
The lichee pericarp browning index ratio control reduction by 28% of the aqueous acid spraying that come off through 10mg/L, as a result such as the institute of table 2
Show.
Comparative example 2
500mg/L is come off aqueous acid spraying litchi fruits surface of 1 day before adopting, 20 DEG C of storage is stored in after harvesting
Hide 8 days in storehouse；And the evaluation of the pericarp browning order of severity is carried out, 3 groups of average values for the treatment of of the above are taken as this comparative example 2
Data.
Control treatment：After by the lichee harvesting after harvesting, accordingly it is stored in 20 DEG C of storage, preserves 8 days, goes forward side by side
The evaluation of the row pericarp browning order of severity, takes 3 groups of average values for the treatment of of above data as a control group.
The lichee pericarp browning index ratio control reduction by 46% of the aqueous acid spraying that come off through 500mg/L, as a result such as the institute of table 2
Show.
2 comparative example of table 1,2 controls the result of lichee pericarp brown stain
| Treatment | Pericarp browning disease index * |
| Control treatment | 3.2A** |
| Comparative example 1 (ABA10mg/L) | 2.3B |
| Comparative example 2 (ABA500mg/L) | 1.7B** |
Note：* the evaluation of the pericarp browning order of severity:With reference to the method for Scott etc. (1982).By lichee pericarp browning degree
It is divided into 1~5 grade.1 grade：Pericarp is entirely red；2 grades：The ratio that browned area accounts for the gross area is less than 25%；3 grades：Browned area accounts for 25%
~50%；4 grades：Browned area accounts for 50%~75%；5 grades：Browned area is more than 75% to being fully browned.Browning index=∑
(the brown stain fruit numbers at different levels × brown stain series)/total investigation fruit number；
Preserved 8 days after the harvesting of * lichee；Different letter surface differences are extremely notable (P≤0.01) after numeral.
Lichee comes off after the treatment of aqueous acid spraying through 500mg/L, lichee pericarp browning index reduction by 46%, and concentration increases
Effect prevent-browning is not highly desirable after to a certain extent, and influence lichee taste, and processing cost also increases.
Comparative example 3
The litchi fruits of 1 day are soaked in 100mg/L and come off in aqueous acid and take out immediately, the lichee after immersion after adopting
It is stored in after drying 4 days in 25 DEG C of storage；And the evaluation of the pericarp browning order of severity is carried out, take the flat of 3 groups for the treatment of of the above
Average is used as the data of this comparative example 3.
Control treatment：After by the lichee harvesting after harvesting, accordingly it is stored in 25 DEG C of storage, preserves 4 days, goes forward side by side
The evaluation of the row pericarp browning order of severity, takes 3 groups of average values for the treatment of of above data as a control group.
Lichee is reduced through the browning index of the lichee pericarp after 100mg/L abscisic acid aqueous solution soakings than control again after adopting
10%, as a result as shown in table 3.
Comparative example 4
The litchi fruits of 1 day are soaked in 200mg/L and come off in aqueous acid and take out immediately, the lichee after immersion after adopting
It is stored in after drying 4 days in 22.5 DEG C of storage；And the evaluation of the pericarp browning order of severity is carried out, take 3 groups for the treatment of of the above
Average value is used as the data of this comparative example 3.
Control treatment：After by the lichee harvesting after harvesting, accordingly it is stored in 25 DEG C of storage, preserves 4 days, goes forward side by side
The evaluation of the row pericarp browning order of severity, takes 3 groups of average values for the treatment of of above data as a control group.
The browning index of the lichee pericarp that lichee is processed through 200mg/L abscisic acids aqueous solution soaking again after adopting is reduced than control
13%, as a result as shown in table 3.
Comparative example 5
100mg/L is come off aqueous acid spraying litchi fruits surface of 5 days before adopting, is harvested within 5 days after spraying, will harvested
Lychee storage 4 days in 25 DEG C of storage；And the evaluation of the pericarp browning order of severity is carried out, take the flat of 3 groups for the treatment of of the above
Average is used as the data of this comparative example 5.
Control treatment：After by the lichee harvesting after harvesting, accordingly it is stored in 25 DEG C of storage, preserves 4 days, goes forward side by side
The evaluation of the row pericarp browning order of severity, takes 3 groups of average values for the treatment of of above data as a control group.
Lichee adopt before through 100mg/L come off aqueous acid spraying process, pericarp browning disease index than control reduce by 80%,
Result is as shown in table 3.
3 comparative example of table 3 and 4 controls the result of lichee pericarp brown stain
Note：* the evaluation of the pericarp browning order of severity:With reference to the method for Scott etc. (1982).By lichee pericarp browning degree
It is divided into 1~5 grade.1 grade：Pericarp is entirely red；2 grades：The ratio that browned area accounts for the gross area is less than 25%；3 grades：Browned area accounts for 25%
~50%；4 grades：Browned area accounts for 50%~75%；5 grades：Browned area is more than 75% to being fully browned.Browning index=∑
(the brown stain fruit numbers at different levels × brown stain series)/total investigation fruit number.
Above-described embodiment is the present invention preferably implementation method, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from Spirit Essence of the invention and the change, modification, replacement made under principle, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (6)
1. a kind of method that utilization abscisic acid controls lichee pericarp brown stain, it is characterised in that be the aqueous acid spraying that will come off
On litchi fruits surface, the concentration of the aqueous acid that comes off is 50mg.L-1~200mg.L-1。
2. the method for controlling lichee pericarp brown stain using abscisic acid according to claim 1, it is characterised in that the abscisic acid
The concentration of the aqueous solution is 100mg.L-1~200mg.L-1。
3. the method for controlling lichee pericarp brown stain using abscisic acid according to claim 1, it is characterised in that the lichee is
The lichee for not yet harvesting.
4. the method for controlling lichee pericarp brown stain using abscisic acid according to claim 3, it is characterised in that described not yet to adopt
The lichee of receipts is by the lichee harvested in 1~10 day.
5. the method for controlling lichee pericarp brown stain using abscisic acid according to claim 1, it is characterised in that the storage temperature
Spend is 20~25 DEG C.
6. the method for controlling lichee pericarp brown stain using abscisic acid according to claim 1, it is characterised in that the abscisic acid
The solvent of the aqueous solution is：Distilled water, running water, well water, mineral water or pure water.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110810763A (en) * | 2019-11-11 | 2020-02-21 | 浙江大学 | Method for improving content of catechins in picked grapes |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416657A (en) * | 2007-10-26 | 2009-04-29 | 中国科学院成都生物研究所 | Fruit anti-staling agent |
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- 2016-12-15 CN CN201611165797.6A patent/CN106720258A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101416657A (en) * | 2007-10-26 | 2009-04-29 | 中国科学院成都生物研究所 | Fruit anti-staling agent |
Non-Patent Citations (1)
| Title |
|---|
| SUKHVINDER PAL SINGH ET AL.: "Preharvest application of abscisic acid promotes anthocyanins accumulation in pericarp of litchi fruit without adversely affecting postharvest quality", 《POSTHARVEST BIOLOGY AND TECHNOLOGY》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110810763A (en) * | 2019-11-11 | 2020-02-21 | 浙江大学 | Method for improving content of catechins in picked grapes |
| CN110810763B (en) * | 2019-11-11 | 2023-03-21 | 浙江大学 | Method for improving content of catechins in picked grapes |
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