CN103202287B - A kind of method that fresh flower is fresh-keeping - Google Patents
A kind of method that fresh flower is fresh-keeping Download PDFInfo
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- CN103202287B CN103202287B CN201310095337.0A CN201310095337A CN103202287B CN 103202287 B CN103202287 B CN 103202287B CN 201310095337 A CN201310095337 A CN 201310095337A CN 103202287 B CN103202287 B CN 103202287B
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Abstract
The invention discloses a kind of method that fresh flower is fresh-keeping, comprise the following steps: (1) by the poly-vinyl alcohol solution even application of mass fraction 3-5%, pH2.0 ~ 7.0 at each position of fresh flower; (2) fresh flower that step (1) processed is drying to obtain.The present invention, by fresh flower surface coverage layer of polyethylene alcohol film, under the condition keeping the original color and luster of fresh flower and shape, reduces the evaporation of fresh flower internal moisture, extends the storage time of fresh flower; Improve the mechanical property of fresh flower simultaneously, be convenient to the transport of fresh flower.
Description
Technical field
The present invention relates to a kind of method that fresh flower is fresh-keeping, belong to plant fresh-preservation technology field.
Background technology
China's region length and breadth of land, the otherness between region is very large, is one of country of enriching the most of plant resources in the world.About there are 30000 various plants in China, and that wherein spends class plant to occupy wherein is more than half, and if any Chinese rose, rare flower, Long Nvhua, winter daphne, VC.Aureomariginatn, sweet osmanthus, pigeon flower, silk tree, herds pellet, plum blossom, wax plum etc.Flower class plant has good ornamental value, therefore very popular.But because flower class plant exists very large geographic difference, flower is easily dried out by evaporating, and easily sustains damage, therefore the storage of fresh flower and transport become the bottleneck of restriction fresh flower industry development.
At present effectively on the market do not carry out fresh-keeping method to fresh flower, conventional is mainly embossing, dried flower and interpolation nutrient solution.But embossing can not ensure the original shape of fresh flower, reduces the ornamental value of fresh flower to a great extent; Flower drying technology is imperfect especially, and dried fresh flower has certain change on color and luster, and dried floral can not be placed in air, is easy to the moisture in absorption air and is out of shape; Secondly, dried floral is frangible, is unfavorable for transport; Interpolation nutrient solution cannot avoid the damage in fresh flower transportation.
Summary of the invention
The object of this invention is to provide a kind of method that fresh flower is fresh-keeping, to solve the problem of fresh flower storage and transport difficult.
In order to realize above object, the technical solution adopted in the present invention is to provide a kind of fresh-keeping method of fresh flower, comprises the following steps:
(1) by the poly-vinyl alcohol solution even application of mass fraction 3-5%, pH 2.0 ~ 7.0 at each position of fresh flower;
(2) fresh flower that step (1) processed is drying to obtain.
Described baking temperature is 15 ~ 30 DEG C.
Described drying time is 3 ~ 10h.
The present invention has the following advantages:
(1) the present invention adopts the poly-vinyl alcohol solution of mass fraction 3-5% to spray, and can avoid producing film forming solution concentration and increase, solution viscosity increases, and the problem that cannot spray, reaches and make each position of fresh flower spray uniform effect;
(2) the present invention adopts the poly-vinyl alcohol solution of mass fraction 3-5% to spray, and can avoid producing film forming solution concentration and increase, film thickness increases, and causes fresh flower surface coating reflective, affects the problem of the original color and luster of fresh flower; Method of the present invention can make fresh flower while maintenance moisture, has good ornamental value;
(3) the present invention adopts the poly-vinyl alcohol solution of mass fraction 3-5% to spray, and can avoid the excessive concentration of film forming solution, cause adhesion between petal, destroys the problem of fresh flower shape; Method of the present invention while fresh-keeping to fresh flower, maintains the shape that fresh flower is good;
(4) the present invention adopts the poly-vinyl alcohol solution of pH 2.0 ~ 7.0 to spray, and can improve the stability of anthocyanidin, extends the storage time of fresh flower;
(5) the poly-vinyl alcohol solution overlay film of mass fraction 3-5%, pH 2.0 ~ 7.0 of the present invention has good filming performance, layer of polyethylene alcohol film can be formed at each portion faces of fresh flower, under the condition not affecting the original shape of fresh flower and color and luster, reduce the evaporation of fresh flower surface moisture, maintain the moisture in fresh flower, extend the fresh keeping time of fresh flower;
(6) method of the present invention makes the fresh flower of overlay film greatly improve than the fresh flower tensile strength of non-overlay film, reaches as high as 10 times, is convenient to the transport of fresh flower.
Embodiment
The spraying equipment that the specific embodiment of the invention adopts comprises air compressor machine (model LB-2070) and high viscosity liquid spray gun (model W-77G), air compressor machine and high viscosity liquid spray gun is formed and sprays combined unit.
Embodiment 1
The method that the present embodiment fresh flower is fresh-keeping, comprises the following steps:
(1) fresh flower is fixed on porose pallet;
(2) poly-vinyl alcohol solution of mass fraction 3%, pH 2.0 is added in the reservoir of high viscosity liquid spray gun, open air compressor machine;
(3) when air compressor machine shuts down time, open control valve, fasten trigger, until open compressed air valve; Continue fastening trigger, rifle pin is pulled open backward by trigger, and poly-vinyl alcohol solution flows out from nozzle, is atomized by the compressed air sprayed from blast cap simultaneously;
(4) by nozzle to the fresh flower be firmly fixed on pallet, even application;
(5) by the fresh flower 30 DEG C of dry 3h in drying box after spraying, the fresh flower of surface coverage polyvinyl alcohol film is obtained.
Embodiment 2
The method that the present embodiment fresh flower is fresh-keeping, comprises the following steps:
(1) fresh flower is fixed on porose pallet;
(2) poly-vinyl alcohol solution of mass fraction 4%, pH 7.0 is added in the reservoir of high viscosity liquid spray gun, open air compressor machine;
(3) when air compressor machine shuts down time, open control valve, fasten trigger, until open compressed air valve; Continue fastening trigger, rifle pin is pulled open backward by trigger, and poly-vinyl alcohol solution flows out from nozzle, is atomized by the compressed air sprayed from blast cap simultaneously;
(4) by nozzle to the fresh flower be firmly fixed on pallet, even application;
(5) by the fresh flower 23 DEG C of dry 6h in drying box after spraying, the fresh flower of surface coverage polyvinyl alcohol film is obtained.
Embodiment 3
The method that the present embodiment fresh flower is fresh-keeping, comprises the following steps:
(1) fresh flower is fixed on porose pallet;
(2) poly-vinyl alcohol solution of mass fraction 5%, pH 4.5 is added in the reservoir of high viscosity liquid spray gun, open air compressor machine;
(3) when air compressor machine shuts down time, open control valve, fasten trigger, until open compressed air valve; Continue fastening trigger, rifle pin is pulled open backward by trigger, and poly-vinyl alcohol solution flows out from nozzle, is atomized by the compressed air sprayed from blast cap simultaneously;
(4) by nozzle to the fresh flower be firmly fixed on pallet, even application;
(5) by the fresh flower 15 DEG C of dry 10h in drying box after spraying, the fresh flower of surface coverage polyvinyl alcohol film is obtained.
Experimental example 1, color difference analysis
Measure the change of color before and after fresh flower overlay film of the present invention with color difference meter, what color difference measurement adopted is CIE colour system, first measures the lightness L of fresh flower
*, a
*, b
*, L
*lightness index and brightness, a
*be chromaticity index namely from carmetta to the scope of green, b
*be chromaticity index namely from yellow to the scope of blueness, then measure the L of overlay film fresh flower
*, a
*, b
*, calculate △ L, △ a, △ b, aberration
tester is color difference meter [Ai Seli (X-RITE) ColorEye 7000A, the U.S.], and result is as shown in table 1.
Color difference analysis before and after table 1 fresh flower overlay film of the present invention
| Embodiment | Aberration △ E |
| 1 | 0.23 |
| 2 | 0.31 |
| 3 | 0.39 |
As can be seen from Table 1, the aberration before and after fresh flower overlay film is less, illustrates that fresh flower overlay film is little on the impact of fresh flower color, does not affect the ornamental value of fresh flower.
Experimental example 2, mechanics property analysis
Utilize the change of tensile strength before and after Instron554Q6427 type instrumental test the present embodiment fresh flower overlay film, assay method is:
P=F/(L×b)
Wherein, P is tensile strength, units MPa,
F is the maximum pull acting on petal two ends, unit N,
L is the width of petal, unit mm,
B is the thickness of film, and micrometer caliper measures, unit mm.
Result is as shown in table 2.
Table 2 Analysis of tensile strength
| Embodiment | Result |
| 1 | The fresh flower of overlay film is higher 7 times than the fresh flower tensile strength of non-overlay film |
| 2 | The fresh flower of overlay film is higher 8.5 times than the fresh flower tensile strength of non-overlay film |
| 3 | The fresh flower of overlay film is higher 10 times than the fresh flower tensile strength of non-overlay film |
As can be seen from Table 2, the fresh flower tensile strength after overlay film improves greatly, can reduce the damage of fresh flower in transportation.
Experimental example 3, fresh-keeping effect analysis
Placed in atmosphere by fresh flower not through aluminum coated steel, observed the CF change of fresh flower every 1 hour, using the original shape of fresh flower and color as blank, result is as table 3; Placed in atmosphere by fresh flower through aluminum coated steel, the fresh flower CF change after observing process every 1 hour, with the original shape of the fresh flower through aluminum coated steel and color in contrast, result is as table 4.Wherein cosmetic variation is observed can be learnt by sense organ, and color change uses color difference meter to measure.
Table 3 changes without the fresh flower CF of aluminum coated steel
| Time/h | Cosmetic variation | Color change △ E |
| 1 | The slight deliquescing of petal | Substantially unchanged |
| 2 | Petal deliquescing also has shrinkage | Substantially unchanged |
| 3 | Petal shrinkage | 0.21 |
| 4 | Whole strain Huadu distortion | 0.29 |
Table 4 changes through the fresh flower CF of aluminum coated steel
| Time | Cosmetic variation | Color change △ E |
| 1h | Substantially constant | Substantially unchanged |
| 4h | Substantially constant | Substantially unchanged |
| 2d | Substantially constant | Substantially unchanged |
| 7d | Substantially constant | 0.11 |
As can be seen from table 3,4, after fresh flower overlay film, fresh keeping time obviously extends.
Claims (1)
1. the method that fresh flower is fresh-keeping, is characterized in that, its operating procedure is as follows:
(1) by the poly-vinyl alcohol solution even application of mass fraction 3-5%, pH 2.0 ~ 7.0 at each position of fresh flower;
(2) fresh flower that step (1) processed is drying to obtain;
The temperature of described drying is 15 ~ 30 DEG C; The time of described drying is 3 ~ 10h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310095337.0A CN103202287B (en) | 2013-03-22 | 2013-03-22 | A kind of method that fresh flower is fresh-keeping |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310095337.0A CN103202287B (en) | 2013-03-22 | 2013-03-22 | A kind of method that fresh flower is fresh-keeping |
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| Publication Number | Publication Date |
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| CN103202287A CN103202287A (en) | 2013-07-17 |
| CN103202287B true CN103202287B (en) | 2015-09-23 |
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| CN201310095337.0A Expired - Fee Related CN103202287B (en) | 2013-03-22 | 2013-03-22 | A kind of method that fresh flower is fresh-keeping |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104621098B (en) * | 2015-01-29 | 2016-09-14 | 宁波远鸿生物科技有限公司 | A kind of preparation method of plump full preserved flower |
| CN110367246A (en) * | 2019-07-10 | 2019-10-25 | 邱张云 | A kind of natural plants specially treated technique |
| CN114271266A (en) * | 2022-01-04 | 2022-04-05 | 江西智汇中药材种植有限公司 | Vacuum rapid freezing storage and preservation method for fresh gardenia |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060937A1 (en) * | 1999-04-09 | 2000-10-19 | Hock Kian Lee | Preservation of flowers |
| CN100350838C (en) * | 2005-09-26 | 2007-11-28 | 仲恺农业技术学院 | Storage preservation method for Heliconia rostrata Ruiz & pavon |
| CN101189963A (en) * | 2006-11-30 | 2008-06-04 | 天津市世纪东方建筑景观雕塑技术开发中心 | Method for fresh-keeping branches and leaves of arborescent trees plant |
| CN101874464A (en) * | 2010-03-26 | 2010-11-03 | 蒋文兰 | Long-acting powdery attapulgite mud for inserting fresh flowers and production method thereof |
| CN102687716A (en) * | 2011-11-25 | 2012-09-26 | 河南科技大学 | Tree peony fresh cutting flower anti-staling agent and preservative solution |
-
2013
- 2013-03-22 CN CN201310095337.0A patent/CN103202287B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000060937A1 (en) * | 1999-04-09 | 2000-10-19 | Hock Kian Lee | Preservation of flowers |
| CN100350838C (en) * | 2005-09-26 | 2007-11-28 | 仲恺农业技术学院 | Storage preservation method for Heliconia rostrata Ruiz & pavon |
| CN101189963A (en) * | 2006-11-30 | 2008-06-04 | 天津市世纪东方建筑景观雕塑技术开发中心 | Method for fresh-keeping branches and leaves of arborescent trees plant |
| CN101874464A (en) * | 2010-03-26 | 2010-11-03 | 蒋文兰 | Long-acting powdery attapulgite mud for inserting fresh flowers and production method thereof |
| CN102687716A (en) * | 2011-11-25 | 2012-09-26 | 河南科技大学 | Tree peony fresh cutting flower anti-staling agent and preservative solution |
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| CN103202287A (en) | 2013-07-17 |
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