CN103734291A - Preparation method and application of water-soluble litchi compound nano preservative - Google Patents

Preparation method and application of water-soluble litchi compound nano preservative Download PDF

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CN103734291A
CN103734291A CN201410002678.3A CN201410002678A CN103734291A CN 103734291 A CN103734291 A CN 103734291A CN 201410002678 A CN201410002678 A CN 201410002678A CN 103734291 A CN103734291 A CN 103734291A
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water
lichee
soluble
antioxidant
keeping agent
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CN103734291B (en
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聂国朝
梁伟江
吴艳华
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Yulin Normal University
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Yulin Normal University
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Abstract

The invention relates to a preparation method and an application of a water-soluble litchi compound nano preservative. The preparation method comprises the following steps: mechanically mashing caraway tissue and water to make pulp, sealing and soaking the pulp for 15-30 hours, subsequently performing suction filtration so as to obtain a filtrate and filter residues, adding 0.05-0.5% of surfactant into the filtrate, uniformly mixing, sealing up and standing, soaking the filter residues in alcohol or methanol, wherein the ratio of the filter residues (pile volume) to the alcohol is 30ml:(60-250ml), sealing and soaking for 15-30 hours, subsequently performing suction filtration, adding an antioxidant to make the concentration of the antioxidant be 6-12.3g/100ml and obtain an antioxidant-alcohol extract solution, adding 60-250ml of the antioxidant-alcohol extract solution into the solution with the surfactant, so as to obtain the water-soluble litchi compound nano preservative. The preservative provided by the invention is used for preserving fruits such as litchi and after being picked up, and the fruits can be preserved for more than 31 days after being treated by using the preservative in a refrigerator or refrigeration house of 0-5 DEG C.

Description

Water-soluble lichee compound nanometer fresh-keeping agent preparation method and application thereof
Technical field
The invention belongs to antistaling agent manufacture field, be specifically related to a kind of method and application thereof that utilizes false beach wormwood tissue extract to prepare water-soluble lichee compound nanometer fresh-keeping agent.
Background technology
False beach wormwood (also Cheng Jia Betel) is the plant of Piperaceae Piper, and its fruit is called complete plectrum.Be distributed in the ground such as the Yunnan, Guizhou, Fujian, Tibet, Guangdong, Guangxi of India, Vietnam, Indonesia, Philippine, Papua New Guinea, Malaysia and China's Mainland, grow in tropical and subtropical region, often be grown on the other wetland in sylvan life and village, in Vietnam, there is artificial growth in Laos.False beach wormwood is the perennial draft of crawling, and that rubs has fragrance.Stipes expands, long-living adventitious root.Leaf alternate, closely membranous, inhale gland point, the wealthy avette or subcircular of leaf of bottom, long 7-14cm, wide 6-13cm, the short point of tip, base portion is heart-shaped or enter a section shape, 7 of veins; The leaf on top is little, avette to ovum shape lanceolar; The long 1-5cm of petiole.Flower unisexuality, dioecism, without perianth; Cotton-shaped inflorescence; The long 1.5-2cm of male inflorescence, diameter 2-3cm, bract oblateness, diameter 0.5-0.6mm, 2 pieces, stamen; The long 6-8mm of female inflorescence, the prolongation of fruit phase reaches 2.5cm; Bract is slightly large, column cap 3-5.Berry is subsphaeroidal, tool angle rib, and diameter 2.5-3cm, bottom embedding is born in order axle.Summer at florescence.False beach wormwood can be used for stomach cold pain, inflatable abdomen pain, and rheumatism Low Back Pain, postpartum, deficiency of vital energy pin was swollen, sore pain, hemorrhoid, treating swelling and pain by traumatic injury.But manufacture up to now and find no take false beach wormwood as raw material, the report of vegetalitas antistaling agent.
Lichee is gathered due to high temperature season in full summer, adds that its structure is special, very easily brown stain and rotting after gathering.And the southern lichee collecting period, is rainy season, almost rare sunny day, existing lichee fresh-keeping process all requires fine day to pluck, and is in fact difficult to realize.At normal temperatures, litchi fruits 2 ~ 3 days is that brown stain is rotted, and loses commodity value.Adopting rear rotting is that restriction lichee stores and transports, causes one of principal element that shelf life is short and fruit commodity value declines for a long time.At present, the methods such as the chemical preservative processing, sulfur dioxide treatment, heat treatment controlled of rotting for lichee have certain effect to Preservation of Litchi chinensis Fruits, but all exist, human body are had to the defects such as potential hazard and fresh-keeping effect be not good.Conventional chemical bactericide belongs to pesticide, and chemical bactericide has certain effect to reducing fruit rot, but its high residue harm humans health and pathogen easily develop immunity to drugs to chemical bactericide, and therefore the efficient antiseptic preservation technology of research safety is imperative.The present invention develops a kind of simple and antiseptic preservation technology of lichee storing efficiently again.Fine day, rainy day all can be plucked and be fresh-keeping.
Good antibacterial, the antifungal activities of wild caraway tool such as the false beach wormwood that the antistaling agent of the present invention exploitation adopts, can desinsection, antiprotozoal and many excellent specific properties (Khalid Hussain, 2012) such as non-toxic; The antioxidant sorbic acid of selecting is the antisepsis antistaling agent of the highly effective and safe of international food and agricultural organization and health organization recommendation, is widely used in the industries such as food, beverage; Nano particle stabilizing agent (surfactant) dialkyl quaternary ammonium salt (Huang Qiran adopting, 2007, Zhang Jinping, 2011), as: two octyl alkyl dimethyl ammonium chlorides, didecyl Dimethy ammonium chloride, dodecyl benzyl dimethyl ammonium chloride or polysiloxane quaternary ammonium (HM98) they are good bactericide (Jiang Jianxiang, 2000, Li Junying, 2004), and colourless, odorless (slightly fishy smell, utilize false beach wormwood extract except it), low toxicity, safety (Yang Yanwei, 2011).
Summary of the invention
The object of the invention is to overcome the requirement that existing antistaling agent toxicity is large, meet rainy day, fine day harvesting fresh preservation, solve existing preservation method cost high, agricultural chemicals or sulfur dioxide etc. residue in the problems such as fruit surface, provide one to utilize false beach wormwood (perilla leaf, rosemary, Xue MingRosma rinus officinalis etc.) tissue extract to prepare method and the application thereof of water-soluble lichee compound nanometer fresh-keeping agent.
The solution of the present invention is by such realization: a kind of water-soluble lichee compound nanometer fresh-keeping agent preparation method, and this preparation method's step comprises:
Step 1): caraway tissue: water=300g:1.5 ~ 4L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 15 ~ 30 hours suction filtration obtain filtrate and filter residue.Machinery is smashed mode to pieces can, with stone mill or metal mill, wear into mud by false beach wormwood or purple perilla or the perfume (or spice) that changes.
Step 2): in the filtrate obtaining in step 1), add 0.05% ~ 0.5% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:60 ~ 250ml, sealing was soaked after 15 ~ 30 hours, suction filtration, in obtained wine thereby essence extract filtrate, add antioxidant, making antioxidant concentration is 6 ~ 12.3g/100ml, obtains antioxidant-alcoholic extract solution.Alcohol-pickledly also can soak extraction with organic solvent methyl alcohol and replace, but after extract obtained methyl alcohol rotary evaporation thoroughly must being eliminated, then add the alcohol of equivalent, finally still form antioxidant-alcoholic extract solution.Methyl alcohol for the recovery rate of active ingredient in caraway tissue than the high 5%-10% of alcohol.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 60 ~ 250ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.
As further restriction of the present invention, described caraway is organized as false beach wormwood or purple perilla or repeatedly any or their composition in fragrant tissue.
As further restriction of the present invention, described surfactant is conventional committee's ammonium salt or polysiloxane quaternary ammonium disinfection sanitizer, as any or their composition in two octyl alkyl dimethyl ammonium chlorides, didecyl Dimethy ammonium chloride, dodecyl dixylyl ammonium chloride, polysiloxane quaternary ammonium (HM98).
As further restriction of the present invention, described false beach wormwood or purple perilla or repeatedly repeatedly fragrant false beach wormwood or purple perilla or repeatedly spiceleaf, false beach wormwood or purple perilla or any or their composition that change in fragrant herb of being organized as.False beach wormwood or purple perilla or the fragrant herb that changes are containing any one in stem, root, the complete plectrum of fruit or multinomial.Can be fresh or dry false beach wormwood or purple perilla or any or their composition that change in fragrant herb
As further restriction of the present invention, described antioxidant is any or their composition in sorbic acid or sorbate.Sorbate can be used potassium sorbate, sodium sorbate.
The application of the water-soluble lichee compound nanometer fresh-keeping agent described in more than one, this water-soluble lichee compound nanometer fresh-keeping agent is used for to it, carrying out fresh-keeping after lichee, longan fruit picking.
For making the present invention openly abundant, the using method of antistaling agent: fresh litchi (longan) is immersed this antistaling agent approximately 1 ~ 5 minute in batches, taking-up sets to 0 ~ and 5 ℃, drain antistaling agent (approximately 10 ~ 20 minutes), evenly put into polystyrene foam case and (at the bottom of case, be ready in advance porous plastics dividing plate, in case lichee/longan is dipped into coming in antistaling agent of may dripping, all containers, and the equal thing of preservative film claims to soak with antistaling agent, be pre-chilled to 0 ~ 5 ℃, with degerming), also can seal with the polyethylene preservative film of thickening, the isolated air of sealing, bag black plastic bag lucifuge, in 0 ~ 5 ℃ of freezer or refrigerator, freshness-retained more than 31 days.This antistaling agent is not only in polystyrene foam case, other closed container, and what be convenient to transportation can.
The know-why that the present invention realizes is: adopting low concentration, nontoxic cationic surfactant is emulsifying agent, utilizing the torrid zone, abundant false beach wormwood (perilla leaf, the rosemary, Xue MingRosma rinus officinalis etc.) extract of wild caraway in subtropical zone is main aromatic, antistaling agent, bactericide, antifungal agent, pesticide, take water and a small amount of edible organic matter as nano material solvent, add a small amount of antioxidant and be mixed with lichee compound nanoparticle fresh-keeping liquid, wherein diameter of nano particles is about 100-200 nm.Lichee is immersed in this fresh-keeping liquid to several minutes, can uniform fold lichee surface, protection antistaling agent slowly discharges.Use this antistaling agent under 0-5 ℃ of environment, can make the ripe lichee fresh-keeping of 7-8 more than 31 days, be applicable to the fresh fruit that fine day is applicable to again the harvesting of south rainy day in summer.Dosing apparatus is simple and easy, simple to operate, can be mass-produced.
The present invention possesses following good result:
(1) the present invention is to be raw material at the false beach wormwood of creationary employing (perilla leaf, rosemary, Xue MingRosma rinus officinalis etc.), it is carried out to lixiviate and obtain false beach wormwood extract, utilize false beach wormwood extract to prepare environment-protecting asepsis, nano compound antistaling agent that applicability is wide, this antistaling agent is under 0-5 ℃ of environment, can make the ripe lichee fresh-keeping of 7-8 more than 31 days, be applicable to the fresh fruit that fine day is applicable to again the harvesting of south rainy day in summer.
(2) the present invention's false basket used is suitable grows under second shade of tree, wet environment, and easily artificial cultivation, is particluarly suitable for lichee forest interplanting, make this compound nanometer fresh-keeping agent raw material wide material sources, cost is low, nanometer fresh-keeping agent fragrant odour, nontoxic, easily wash with water.
(3) the present invention adopt antioxidant sorbic acid (salt) be a kind of unrighted acid (salt) it can by the metabolic system of human body, be absorbed and be decomposed into rapidly carbon dioxide and water, in vivo noresidue.
Accompanying drawing explanation
Fig. 1. the water-soluble lichee compound of the present invention nanometer fresh-keeping agent preparation method flow chart.
The specific embodiment
Below in conjunction with embodiment and description the present invention, these descriptions are not that content of the present invention is further limited.
embodiment 1
The present embodiment material therefor reagent: false betel 300g, surfactant: the composition of didecyl Dimethy ammonium chloride 0.9g and dodecyl benzyl dimethyl ammonium chloride 0.6g, antioxidant: sorbic acid 8g, is prepared according to following steps.
Step 1): false betel: water=300g:3L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 24 hours suction filtration obtain filtrate and filter residue.
Step 2): in the filtrate obtaining in step 1), add 0.05% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:90ml, suction filtration after 20 hours is soaked in sealing, in this leaching liquid 66ml, adds antioxidant, antioxidant concentration is 12.1g/100ml, obtains antioxidant-alcoholic extract solution.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 66ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.The compound nanometer fresh-keeping agent that the present embodiment obtains detects with Britain's Malvern ParticleSizer, and Nanoparticle Size is 160 ~ 170nm approximately.
embodiment 2
The present embodiment material therefor reagent: perilla leaf 150g, 150 grams of rosemary leaves, surfactant: polysiloxane quaternary ammonium (HM98) 3g, antioxidant: potassium sorbate 4g, is prepared according to following steps.
Step 1): perilla leaf, rosemary leave: water=300g:1.5L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 20 hours suction filtration obtain filtrate and filter residue.
Step 2): in the filtrate obtaining in step 1), add 0.2% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and methyl alcohol ratio=30ml:60ml, sealing was soaked after 24 hours, suction filtration, remove filter residue, rotary evaporation reclaims methyl alcohol, and the brown paste of gained is dissolved in 100ml alcohol and adds antioxidant, antioxidant concentration is 6.0g/100ml, obtains antioxidant-alcoholic extract solution.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 66ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.The compound nanometer fresh-keeping agent that the present embodiment obtains detects with Britain's Malvern ParticleSizer, and Nanoparticle Size is 120 ~ 130nm approximately.
embodiment 3
The present embodiment material therefor reagent: false beach wormwood herb (containing stem, root) 300g, surfactant: the composition of polysiloxane quaternary ammonium (HM98) 5g, dodecyl benzyl dimethyl ammonium chloride 5g, antioxidant: sorbic acid 6g, is prepared according to following steps.
Step 1): false beach wormwood herb: water=300g:3L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 20 hours suction filtration obtain filtrate and filter residue.
Step 2): in the filtrate obtaining in step 1), add 0.33% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:250ml, suction filtration after 24 hours is soaked in sealing, in this leaching liquid 66ml, adds antioxidant, antioxidant concentration is 9.0g/100ml, obtains antioxidant-alcoholic extract solution.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 66ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.The compound nanometer fresh-keeping agent that the present embodiment obtains detects with Britain's Malvern ParticleSizer, and Nanoparticle Size is 190 ~ 200nm approximately.
embodiment 4
The present embodiment material therefor reagent: repeatedly spiceleaf 150g, false betel 150g, surfactant: the composition of polysiloxane quaternary ammonium (HM98) 5g, didecyl Dimethy ammonium chloride 9g, dodecyl benzyl dimethyl ammonium chloride 6g, antioxidant: sorbic acid 6g, sodium sorbate 10g, be prepared according to following steps.
Step 1): repeatedly repeatedly spiceleaf, false betel: water=300g:4L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 15 hours suction filtration obtain filtrate and filter residue.
Step 2): in the filtrate obtaining in step 1), add 0.5% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:200ml, suction filtration after 30 hours is soaked in sealing, in this leaching liquid 66ml, adds antioxidant, antioxidant concentration is 7.0g/ml, obtains antioxidant-alcoholic extract solution.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 66ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.The compound nanometer fresh-keeping agent that the present embodiment obtains detects with Britain's Malvern ParticleSizer, and Nanoparticle Size is 120 ~ 130nm approximately.
embodiment 5
The present embodiment material therefor reagent: purple perilla herb (containing stem, root) 300g, surfactant: the composition of dodecyl benzyl dimethyl ammonium chloride 12g, antioxidant: sorbic acid 4.5g, sodium sorbate 2g, be prepared according to following steps.
Step 1): purple perilla herb: water=300g:3L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 15 hours suction filtration obtain filtrate and filter residue.
Step 2): in the filtrate obtaining in step 1), add 0.4% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:100ml, suction filtration after 24 hours is soaked in sealing, in this leaching liquid 66ml, adds antioxidant, antioxidant concentration is 9.8g/100ml, obtains antioxidant-alcoholic extract solution.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 66ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.The compound nanometer fresh-keeping agent that the present embodiment obtains detects with Britain's Malvern ParticleSizer, and Nanoparticle Size is 160 ~ 170nm approximately.
embodiment 6
The present embodiment material therefor reagent: false beach wormwood herb (contain stem, root, finish and pull out son) 150g, purple perilla herb 150g, surfactant: the composition of polysiloxane quaternary ammonium (HM98) 5g, dodecyl benzyl dimethyl ammonium chloride 5g, antioxidant: sorbic acid 8.1g, is prepared according to following steps.
Step 1): false beach wormwood herb: water=300g:3L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 20 hours suction filtration obtain filtrate and filter residue.
Step 2): in the filtrate obtaining in step 1), add 0.33% surfactant, mix sealing and place.
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:80ml, suction filtration after 24 hours is soaked in sealing, in this leaching liquid 66ml, adds antioxidant, antioxidant concentration is 12.3g/100ml, obtains antioxidant-alcoholic extract solution.
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 66ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.The compound nanometer fresh-keeping agent that the present embodiment obtains detects with Britain's Malvern ParticleSizer, and Nanoparticle Size is 190 ~ 200nm approximately.
embodiment 7application Example
The water-soluble lichee compound nanometer fresh-keeping agent that embodiment 1 ~ 6 prepares, water-soluble lichee compound nanometer fresh-keeping agent can be used for to it, carrying out fresh-keeping after lichee, longan fruit picking.
The using method of antistaling agent: fresh litchi (longan) is immersed this antistaling agent approximately 1 ~ 5 minute in batches, taking-up sets to 0 ~ and 5 ℃, drain antistaling agent (approximately 10 ~ 20 minutes), evenly put into polystyrene foam case and (at the bottom of case, be ready in advance porous plastics dividing plate, in case lichee (longan) is dipped into coming in antistaling agent of may dripping, the equal thing of all containers and preservative film claims to soak with antistaling agent, be pre-chilled to 0 ~ 5 ℃, with degerming), the isolated air of sealing, bag black plastic bag lucifuge, in 0 ~ 5 ℃ of freezer or refrigerator, freshness-retained more than 31 days.

Claims (10)

1. a water-soluble lichee compound nanometer fresh-keeping agent preparation method, is characterized in that, this preparation method's step comprises:
Step 1): caraway tissue: water=300g:1.5 ~ 4L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 15 ~ 30 hours suction filtration obtain filtrate and filter residue;
Step 2): in the filtrate obtaining in step 1), add 0.05% ~ 0.5% surfactant, mix sealing and place;
Step 3): step 1) is obtained to filter residue and be soaked in alcohol, filter residue (heap volume) and alcohol ratio=30ml:60 ~ 250ml, sealing was soaked after 15 ~ 30 hours, suction filtration, in obtained wine thereby essence extract filtrate, add antioxidant, making antioxidant concentration is 6.0 ~ 12.3g/100ml, obtains antioxidant-alcoholic extract solution;
Step 4): at whipping step 2) antioxidant-alcoholic extract solution 60 ~ 250ml that prepared solution adds step 3) to obtain simultaneously, obtain water-soluble lichee compound nanometer fresh-keeping agent.
2. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 1, is characterized in that, described caraway is organized as false beach wormwood or purple perilla or repeatedly any or their composition in fragrant tissue.
3. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 1, it is characterized in that, described surfactant is conventional antimicrobial quaternary ammonium or polysiloxane quaternary ammonium, as any or their composition in two octyl alkyl dimethyl ammonium chlorides, didecyl Dimethy ammonium chloride, dodecyl dixylyl ammonium chloride, polysiloxane quaternary ammonium (HM98).
4. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 2, it is characterized in that described false beach wormwood or purple perilla or repeatedly repeatedly fragrant false beach wormwood or purple perilla or repeatedly spiceleaf, false beach wormwood or purple perilla or any or their composition that change in fragrant herb of being organized as.
5. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 1, is characterized in that, described antioxidant is any or their composition in sorbic acid or sorbate.
6. a water-soluble lichee compound nanometer fresh-keeping agent preparation method, is characterized in that, this preparation method's step comprises:
Step 1): caraway tissue: water=300g:1.5 ~ 4L mixes, and machinery is smashed formation slurries to pieces, sealing soak slurries after 15 ~ 30 hours suction filtration obtain filtrate and filter residue;
Step 2): in the filtrate obtaining in step 1), add 0.05%-0.5% surfactant, mix sealing and place;
Step 3): step 1) is obtained to filter residue and be soaked in methyl alcohol, filter residue (heap volume) and methyl alcohol ratio=30ml:60 ~ 250ml, sealing was soaked after 15 ~ 30 hours, suction filtration, after the dry methyl alcohol of filtrate rotary evaporation, add equal-volume alcohol to dissolve again and obtain alcoholic extract solution, in obtained wine thereby essence extract filtrate, add antioxidant, making antioxidant concentration is 6.0 ~ 12.3g/100ml, obtains antioxidant-alcoholic extract solution;
Step 4): limit whipping step 2) antioxidant-alcoholic extract solution 60 ~ 250ml that prepared solution limit adds step 3) to obtain, obtain water-soluble lichee compound nanometer fresh-keeping agent.
7. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 6, is characterized in that, described caraway is organized as false beach wormwood or purple perilla or repeatedly any or their composition in fragrant tissue; Described false beach wormwood or purple perilla or repeatedly repeatedly fragrant false beach wormwood or purple perilla or repeatedly spiceleaf, false beach wormwood or purple perilla or any or their composition that change in fragrant herb of being organized as.
8. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 6, it is characterized in that, described surfactant is conventional antimicrobial quaternary ammonium or polysiloxane quaternary ammonium, as any or their composition in two octyl alkyl dimethyl ammonium chlorides, didecyl Dimethy ammonium chloride, dodecyl dixylyl ammonium chloride, polysiloxane quaternary ammonium (HM98).
9. water-soluble lichee compound nanometer fresh-keeping agent preparation method according to claim 6, is characterized in that, described antioxidant is any or their composition in sorbic acid or sorbate.
10. an application for the water-soluble lichee compound nanometer fresh-keeping agent described in claim 1~9 any one, is characterized in that, this water-soluble lichee compound nanometer fresh-keeping agent is used for to it, carrying out fresh-keeping after lichee, longan fruit picking.
CN201410002678.3A 2014-01-03 2014-01-03 Water-soluble litchi compound nano preservative preparation method and application thereof Expired - Fee Related CN103734291B (en)

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CN105767129A (en) * 2016-03-17 2016-07-20 广东海洋大学 Piper sarmentosum roxb leaf extract and application thereof for fresh keeping of pitayas
CN107343532A (en) * 2017-07-05 2017-11-14 广西南宁乐蕊生物科技有限责任公司 A kind of antistaling agent of Han Jia Betel extracts and Prochloraz

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CN102349574A (en) * 2011-09-20 2012-02-15 中国科学院华南植物园 Method for preserving Litchi chinensis Sonn by using quaternary ammonium salt
CN102726461A (en) * 2012-06-18 2012-10-17 湖南人文科技学院 Method of mitigating harm of Hirschmanniella to paddy rice by using extract product of Perilla frutescens (L.) Britt

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
CN105767129A (en) * 2016-03-17 2016-07-20 广东海洋大学 Piper sarmentosum roxb leaf extract and application thereof for fresh keeping of pitayas
CN107343532A (en) * 2017-07-05 2017-11-14 广西南宁乐蕊生物科技有限责任公司 A kind of antistaling agent of Han Jia Betel extracts and Prochloraz

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