NL2026473B1 - An ultraviolet light-based device and method for post-harvest processing of fruit - Google Patents

An ultraviolet light-based device and method for post-harvest processing of fruit Download PDF

Info

Publication number
NL2026473B1
NL2026473B1 NL2026473A NL2026473A NL2026473B1 NL 2026473 B1 NL2026473 B1 NL 2026473B1 NL 2026473 A NL2026473 A NL 2026473A NL 2026473 A NL2026473 A NL 2026473A NL 2026473 B1 NL2026473 B1 NL 2026473B1
Authority
NL
Netherlands
Prior art keywords
ultraviolet light
fruit
processing
harvest
box body
Prior art date
Application number
NL2026473A
Other languages
Dutch (nl)
Other versions
NL2026473A (en
Inventor
Luo Zisheng
Xu Yanqun
Li Li
Ying Tiejin
Wang Fengzhong
Original Assignee
Univ Zhejiang
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 Univ Zhejiang filed Critical Univ Zhejiang
Priority to NL2026473A priority Critical patent/NL2026473B1/en
Publication of NL2026473A publication Critical patent/NL2026473A/en
Application granted granted Critical
Publication of NL2026473B1 publication Critical patent/NL2026473B1/en

Links

Abstract

The present invention discloses an ultraviolet light-based device and method for post-harvest processing of fruit, where the device includes a box body, and a transparent rotary drum with a hollow wall surface is disposed in the box body, one end of the transparent rotary drum is movably connected with the box body, and is driven to rotate by a motor disposed outside the box body, a lid that can open and close is disposed on the other end of the transparent rotary drum, the box body is provided with a liquid inlet and a liquid outlet, and a bubbler and an ultraviolet light device are fixed on an inner wall of the box body, the bubbler is connected with an air pump through an air pump inlet disposed on the box body, the motor, the ultraviolet light device and the air pump are all electrically connected with a controller. The structure of the device of the present invention is reasonable, and the operation is simple, while avoiding mechanical damage, achieving a comprehensive and uniform ultraviolet light radiation processing for the fruit.

Description

1 001650P-NL AN ULTRAVIOLET LIGHT-BASED DEVICE AND METHOD FOR POST-HARVEST
PROCESSING OF FRUIT
FIELD OF TECHNOLOGY The present invention belongs to the technical field of food processing device, and specifically, to an ultraviolet light-based device and method for post-harvest processing of fruit.
BACKGROUND Fresh fruits and vegetables are rich in water content and nutrients, and are extremely susceptible to be infected by pathogenic microorganisms, causing a lot of losses during the post-harvest storage and transportation. Ultraviolet-C light (UV-C for short, wavelength is 200~280nm), as a green and safe alternative method to traditional heat sterilization, has attracted a lot of attentions in the post-harvest circulation of fruits and vegetables in recent years. UV-C processing can inhibit the growth and reproduction of pathogenic microorganisms, improving the disease resistance of fresh agricultural products, and delaying maturity and senescence. The Chinese patent document with the publication number CN205916559U discloses a preservation container for fruits and vegetables, the preservation container for fruits and vegetables includes a sealed container body (1) that can be filled with fruits and vegetables, an ultraviolet light source located in the container body (1), and a titanium dioxide catalytic component (12) located in the container body (1) for eliminating ethylene. The storage of fruits and vegetables by the disclosed fruit and vegetable preservation container can kill microorganisms on the surface of fruits and vegetables, at the same time, the external electric field and the supply of atomized water vapor can reduce the ethylene concentration in the fruit and vegetable preservation container more quickly, thereby prolonging the preservation time of fruits and vegetables. However, because of the particularity of fruits and vegetables, current ultraviolet light processing devices often can only irradiate one side of fruits and vegetables, and cannot achieve uniform irradiation of ultraviolet light on the surface of fruits and vegetables, but the
2 001650P-NL use of conveyor belts to achieve rolling of fruits and vegetables can easily cause mechanical damage to fruits and vegetables, so the development of the UV-C processing device for post-harvest fruit and vegetables evenly irradiated has some difficulties.
In addition, ultraviolet rays can kill microorganisms on the surface of fruits and vegetables, but the ability to sterilize when used alone is limited. Studies have shown that the combination processing of 0.5% fumaric acid cleaning and 5kJ/m2 UV-C for strawberries can reduce the total number of bacteria and the total number of molds effectively. Combining
37.8mJ/cm2 UV-C and 1.5% H202 processing can reduce the total number of salmonella effectively, and the result is better than UV-C and H202 used alone significantly. Therefore, the combination use of ultraviolet light and other processing has important development prospects in the application of post-harvest preservation of fresh agricultural products and food safety control.
SUMMARY The present invention discloses an ultraviolet light-based device for post-harvest processing of fruit, the structure of the device is reasonable, and the operation is simple, while avoiding mechanical damage, achieving a comprehensive and uniform ultraviolet light radiation processing, and is especially suitable for the post-harvest processing of grapes and strawberries.
An ultraviolet light-based device for post-harvest processing of fruit, including: a box body, where a transparent rotary drum with a hollow wall surface is disposed in the box body, one end of the transparent rotary drum is movably connected with the box body, and is driven to rotate by a motor disposed outside the box body, a lid that can open and close is disposed on the other end of the transparent rotary drum; a liquid inlet and a liquid outlet is disposed on the box body, and a bubbler and an ultraviolet light device are fixed on an inner wall of the box body, the bubbler is connected with the air pump through the air pump inlet disposed on the box body; the motor, the ultraviolet light device and the air pump are all electrically connected with a controller.
The controller can be used to control the ultraviolet lamp, the speed of the transparent rotary drum, the gas flow rate, and the processing time and other parameters.
3 001650P-NL The UVC lamp tube is used in the ultraviolet light device, in order to make the ultraviolet irradiation more uniform, the UVC lamp tube is disposed on each inner wall surface of the box body.
The bubbler is disposed in the top and bottom surface of the box body.
The bubbler can generate bubbles in the liquid, so that the fruit rolls in the liquid, thereby avoiding mechanical damage, and achieving uniform irradiation of ultraviolet light on the surface of the fruit.
In order to make bubbles generated smoothly in the box body, an air outlet needs to be disposed on the top surface of the box body, so that the gas input by the air pump can flow out from the air outlet.
The inner wall of the box body is coated with a reflective coating, making the ultraviolet light can be irradiated uniformly in the box body.
The present invention also provides an ultraviolet light-based method for post-harvest processing of fruit, using the ultraviolet light-based device for post-harvest processing of fruit above-mentioned, and including the following specific steps: (1) putting to-be-processed fruit into the transparent rotary drum of the box body; (2) injecting a liquid into the box body; (3) using the controller to control the motor, the air pump and the ultraviolet light device to start operation, and setting the operating time of the entire device at the same time; during the processing, the motor drives the transparent rotary drum to rotate, and the bubbler generates bubbles to roll the fruit, achieving an uniform irradiation of the ultraviolet light device; (4) discharging the liquid after processing, and continuing to control the air pump to inject a gas into the rotary drum to air-dry the surface of the fruit, and taking the fruit out for storage.
In the step (2), the liquid injected is tap water or other solutions that help maintain the quality of the fruit post-harvest, such as melatonin solution or chitosan solution or other solutions.
The gas injected by the air pump is air or other gases that help maintain the quality of the fruit post-harvest, such as nitric oxide or ozone or other gases.
Compared with the prior art, the present invention has the following beneficial effects: While the device for post-harvest processing of fruit of the present invention cleans the surface of fruits and vegetables, while using pneumatics to realize the fruit rolling in the liquid, avoiding mechanical damage, realizing the uniform irradiation of ultraviolet light on
4 001650P-NL the fruit; and can cooperate with a variety of other liquid soaking, gas processing and other methods for fruit post-harvest processing.
BRIEF DESCRIPTION OF THE DRAWINGS FIG 1 is a schematic overall structural diagram of an ultraviolet light-based device for post-harvest processing of fruit; FIG 2 is a perspective view from the right side of FIG 1; FIG 3 is a perspective view from the top side of FIG 1.
DESCRIPTION OF THE EMBODIMENTS Specific implementations of the present invention are further described below combining the accompanying drawings and embodiments, it should be pointed out that the following embodiments are intended to facilitate the understanding of the present invention, but do not have any limiting effect on it.
As shown from FIG 1~FIG3, an ultraviolet light-based device for post-harvest processing of fruit, including: a box body 1, wherein a transparent rotary drum 2 with a hollow wall surface is disposed in the box body 1, one end of the transparent rotary drum 2 is movably connected with the box body 1, and is driven to rotate by a motorl0 disposed outside the box body, a lid11 that can open and close is disposed on the other end of the transparent rotary drum 2, a box door 9 on the side corresponding to the lid 11 is disposed on the box body 1.
UVC lamp tube 4 are disposed on the six inner wall surfaces of the box body 1 for the ultraviolet light processing, in order to make the ultraviolet light irradiate uniformly in the box body 1, the inner wall of the box body | is coated with a reflective coating. An upper bubbler 5 and a lower bubbler 6 are respectively disposed on the top surface and the bottom surface of the box body, wherein the upper bubbler 5 is connected with the air pump 3 through the air pump inlet 7, and the lower bubbler 6 is connected with the air pump 3 through the air pump inlet 8.
A liquid outlet 12 is disposed on the bottom of the box body 1 for discharging the liquid after processing. The device for post-harvest processing of fruit of the present invention,
001650P-NL the liquid outlet 12 can also be used as a liquid inlet for injecting the liquid into the box body 1, or a special liquid inlet is disposed on the upper part of the box body, or the air pump inlet 7 can also be used as a liquid inlet.
In order to make the bubbles generated smoothly in the box body 1, an air outlet needs to 5 be disposed on the top surface of the box body 1, so that the gas input by the air pump can flow out from the air outlet. A motor 10, a UVC lamp tube 4 and an air pump 3 are all electrically connected with a controller, and the controller can be used to control the ultraviolet lamp, the speed of the transparent rotary drum, the gas flow rate, and the processing time and other parameters. Because the UVC lamp tube 4 is disposed on each inner wall surface of the box body 1, the inner wall of the box body 1 is coated with a reflective coating, making the ultraviolet light can be irradiated uniformly in the box body; Because the rotating speed of the transparent rotary drum 2 can be adjusted according to the condition of the fruit, making the fruit rolled in the liquid, thereby achieving the uniform irradiation of the ultraviolet light on the surface of the fruits; Because the bubbler can generate bubbles in the liquid, making the fruits and vegetables rolled in the liquid, thereby avoiding mechanical damage, and achieving uniform irradiation of ultraviolet light on the fruit surface. The following uses the device for post-harvest processing of fruit of the present invention to perform specific processing experiments: Embodiment 1 Step 1: putting to-be-processed strawberries into the transparent rotary drum 2; Step 2: setting device parameters through the controller; Step 3: injecting the hypochlorous acid solution; Step 4: injecting air into the box body through the bubbler; Step 5: the pneumatic processing made by the UVC lamp cooperated with the hypochlorous acid solution for 10 minutes; Step 6: discharging the hypochlorous acid solution after processing, and continuing to inject air to air-dry the surface of the strawberries, and taking the strawberries out for storage.
6 001650P-NL Taking the distilled water processing as a control group, the pneumatic processing made by the UVC lamp cooperated with the hypochlorous acid solution as the experiment group, the experimental results showed that the pneumatic processing made by the UVC lamp cooperated with the hypochlorous acid solution can reduce the rotting rate of strawberries significantly, and increase the disease resistance and volatile substances of strawberries (p<0.05) ), maintaining the sensory quality of strawberries.
Embodiment 2 Step 1: putting the grapes into the transparent rotary drum 2; Step 2: setting device parameters through the controller; Step 3: injecting the 100umol/L melatonin solution; Step 4: injecting air by the air pump into the box body through the bubbler; Step 5: the pneumatic processing made by the UVC lamp cooperated with the melatonin solution for 15 minutes; Step 6: discharging the melatonin solution after processing, and continuing to inject air to air-dry the surface of the grapes, and taking the grapes out for storage.
Taking the distilled water processing as a control group, the pneumatic processing made by the UVC lamp cooperated with the melatonin solution as the experiment group, the experimental results showed that the pneumatic processing made by the UVC lamp cooperated with the melatonin solution can reduce the shattering rate and rotting rate of grapes significantly, and inhibit chlorophyll degradation and lignification of fruit stems (p<0.05), maintaining the sensory quality of grapes.
Embodiment 3 Step 1: putting the strawberries into the transparent rotary drum2; Step 2: setting device parameters through the controller; Step 3: injecting the 1% carboxymethyl chitosan solution; Step 4: injecting air by the air pump into the box body through the bubbler; Step 5: the pneumatic processing made by the UVC lamp cooperated with the 1% carboxymethyl chitosan solution for 1 minute; Step 6: discharging the carboxymethyl chitosan solution, and continuing to inject air to air-dry the surface of the strawberries.
7 001650P-NL Step 7: injecting the 1% chitosan solution; Step 8: the pneumatic processing made by the UVC lamp cooperated with the chitosan solution for 15 minutes; Step 9: discharging the chitosan solution, and continuing to inject air to air-dry the surface of the strawberries, and taking the strawberries out for storage.
Taking the distilled water processing as a control group, the pneumatic self-assemble processing made by the UVC lamp cooperated with carboxymethyl chitosan solution/chitosan solution as the experiment group, the experimental results showed that the pneumatic self-assemble processing made by the UVC lamp cooperated with the carboxymethyl chitosan solution/chitosan solution can promote the metabolism of strawberry phenylpropanoid significantly, and increase the content of strawberry phenolic (p<0.05), improving the nutritional quality of strawberries.
The device for post-harvest processing of fruit of the present invention can also be applied to the processing of vegetables, and while processing vegetables, the steps adopted are the same asthe steps of fruit.
The above-mentioned embodiments illustrate the technical solutions and beneficial effects of the present invention in detail, it should be understood that the above descriptions are only specific embodiments of the present invention, and are not intended to limit the present invention, any modification, supplement and equivalent replacement made within the principle scope of the present invention should be included in the protection scope of the present invention.

Claims (7)

8 001650P-NL Conclusies8 001650P-EN Conclusions 1. Een inrichting op basis van ultraviolet licht voor het verwerken van fruit na de oogst, dat bestaat uit: een bakromp, waarbij in de bakromp een transparante roterende trommel met een hol wandoppervlak is geplaatst, een uiteinde van de transparante roterende trommel is beweegbaar verbonden met de bakromp; en wordt aangedreven om te roteren door een motor, die buiten de bakromp is opgesteld; een deksel, die kan openen en sluiten, is geplaatst aan het andere uiteinde van de transparante roterende trommel; de bakromp is voorzien van een vloeistofinlaat en een vloeistofuitlaat;, en een borrelvat en een ultraviolet licht inrichting zijn bevestigd aan de binnenwand van de bakromp; het borrelvat is verbonden met een luchtpomp via een luchtpompinlaat op de bakromp; de motor, de ultraviolet licht inrichting en de luchtpomp zijn allemaal elektrisch verbonden met een controller.1. A device based on ultraviolet light for processing fruit after harvest, which consists of: a frying body, in which a transparent rotating drum with a hollow wall surface is placed in the frying body, one end of the transparent rotating drum is movably connected with the frying pan; and is driven for rotation by a motor disposed outside the fry hull; a lid, which can open and close, is placed at the other end of the transparent rotating drum; the frying body has a liquid inlet and a liquid outlet, and a bubbler and an ultraviolet light device are attached to the inner wall of the frying body; the bubble barrel is connected to an air pump through an air pump inlet on the frying body; the motor, ultraviolet light device, and air pump are all electrically connected to a controller. 2. De inrichting op basis van ultraviolet licht voor het verwerken van fruit na de oogst volgens conclusie 1, waarbij een UVC-lampbuis wordt gebruikt in de ultraviolet licht inrichting; en deze is gemonteerd op elk binnenwandoppervlak van het bakromp.The ultraviolet light device for processing fruit after harvest according to claim 1, wherein a UVC lamp tube is used in the ultraviolet light device; and it is mounted on each inner wall surface of the frying pan. 3. De inrichting op basis van ultraviolet licht voor het verwerken van fruit na de oogst volgens conclusie 1, waarbij het borrelvat gemonteerd is in het bovenoppervlak en het onderoppervlak inde bakromp.The ultraviolet light device for processing fruit after harvest according to claim 1, wherein the bubble barrel is mounted in the top surface and the bottom surface in the frying body. 4. De inrichting op basis van ultraviolet licht voor het verwerken van fruit na de oogst volgens conclusie 1, waarbij de binnenwand van de bakromp is bedekt met een reflecterende coating.The ultraviolet light post-harvest fruit processing device according to claim 1, wherein the inner wall of the frying body is covered with a reflective coating. 5. Een werkwijze op basis van ultraviolet licht voor de verwerking van fruit na de oogst; de werkwijze maakt gebruik van de inrichting op basis van ultraviolet licht voor verwerking van fruit na de oogst volgens een van de conclusies 1 tot 4 en bestaat uit de volgende specifieke stappen: (1) het plaatsen van het te verwerken fruit in de doorzichtige roterende trommel van het bakromp;5. A method based on ultraviolet light for post-harvest processing of fruit; the method uses the ultraviolet light processing device for post-harvest fruit according to any one of claims 1 to 4 and consists of the following specific steps: (1) placing the fruit to be processed in the transparent rotating drum of the frying pan; 9 001650P-NL (2) het injecteren van een vloeistof in de bakromp; (3) het gebruiken van de controller om de motor, de luchtpomp en de inrichting met ultraviolet licht te besturen om de werking te starten, en tegelijkertijd de bedrijfstijd van het hele inrichting instellen; tijdens de verwerking drijft de motor de transparante roterende trommel aan om te roteren; en het borrelvat genereert bellen om het fruit rond te rollen, waardoor een uniforme bestraling van het ultraviolet licht wordt bereikt; (4) het afvoeren van de vloeistof na verwerking en het blijven besturen van de luchtpomp om een gas in de roterende trommel te injecteren om het oppervlak van het fruit aan de lucht te drogen; en het fruit eruit te halen voor opslag.9 001650P-NL (2) injecting a liquid into the frying pan; (3) using the controller to control the motor, the air pump and the ultraviolet light device to start the operation, and at the same time set the operating time of the whole device; during processing, the motor drives the transparent rotating drum to rotate; and the bubble barrel generates bubbles to roll the fruit, thereby achieving uniform irradiation of the ultraviolet light; (4) discharging the liquid after processing and continuing to control the air pump to inject a gas into the rotating drum to air dry the surface of the fruit; and take the fruit out for storage. 6. De werkwijze op basis van ultraviolet licht voor het verwerken van fruit na de oogst volgens conclusie 5, waarbij in stap (2) de geïnjecteerde vloeistof leidingwater, melatonineoplossing of chitosanoplossing is.The ultraviolet light method for processing fruit after harvest according to claim 5, wherein in step (2) the injected liquid is tap water, melatonin solution or chitosan solution. 7. De werkwijze op basis van ultraviolet licht voor het verwerken van fruit na de oogst volgens conclusie 5, waarbij het gas dat wordt geïnjecteerd door de luchtpomp lucht, stikstofoxide of ozon is.The ultraviolet light method for processing fruit after harvest according to claim 5, wherein the gas injected by the air pump is air, nitrogen oxide or ozone.
NL2026473A 2020-09-15 2020-09-15 An ultraviolet light-based device and method for post-harvest processing of fruit NL2026473B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL2026473A NL2026473B1 (en) 2020-09-15 2020-09-15 An ultraviolet light-based device and method for post-harvest processing of fruit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL2026473A NL2026473B1 (en) 2020-09-15 2020-09-15 An ultraviolet light-based device and method for post-harvest processing of fruit

Publications (2)

Publication Number Publication Date
NL2026473A NL2026473A (en) 2020-10-20
NL2026473B1 true NL2026473B1 (en) 2021-01-14

Family

ID=72882624

Family Applications (1)

Application Number Title Priority Date Filing Date
NL2026473A NL2026473B1 (en) 2020-09-15 2020-09-15 An ultraviolet light-based device and method for post-harvest processing of fruit

Country Status (1)

Country Link
NL (1) NL2026473B1 (en)

Also Published As

Publication number Publication date
NL2026473A (en) 2020-10-20

Similar Documents

Publication Publication Date Title
CN112586555B (en) Cold sterilization and preservation technical method for fresh-cut fruits and vegetables by cooperation of low-temperature plasma activated water and DBD
CN105166030A (en) Method for keeping fruits fresh through atmospheric pressure low temperature plasma activated water
CN107333870A (en) A kind of method of the fresh-keeping fruit of atmos low-temperature plasma activating solution
KR100912761B1 (en) Preservation process apparatus for foods
CN105685207A (en) Preservation method of fresh-cut edible fungi
CN103548986A (en) Refreshing method of edible fungi
CN113142518B (en) Processing method of crisp fruit and vegetable slices and three-stage belt type infrared dryer suitable for same
WO2023124349A1 (en) Reduced-chemical processing method for post-harvest preservation of myrica rubra fruit
CN105230770A (en) Fresh keeping storehouse with ultraviolet rays
CN103859006B (en) A kind of method that is fresh-keeping and quarantining treatment is carried out to fruit
CN206187472U (en) Extranal packing degassing unit for pickle processing
CN108464344A (en) Fruits and vegetables vacuum pre-cooling sterilization fresh-keeping collaborative device and its application method
WO2006097634A1 (en) Systemic method for proximity hygiene and device with low-temperature sanitizing chamber in particular for food products
CN1502249A (en) Freshness-retaining method for fruit and vegetable
NL2026473B1 (en) An ultraviolet light-based device and method for post-harvest processing of fruit
CN109845813A (en) A kind of method that ultrasonic wave composite ozone water combination controlled atmosphere extends the fresh-keeping of vegetables phase
JP2622646B2 (en) Fruit and vegetable ozonation equipment
CN111328870A (en) Novel method for sterilizing and preserving fruits and vegetables
CN111034786A (en) Ultraviolet light-based fruit postharvest treatment device and method
AU2017294807A1 (en) Forced air ozone reactor for microbial reduction
CN209807035U (en) Plasma dehydration and sterilization integrated equipment for fresh-cut food
CN2751576Y (en) Air conditioning sterilizing machine for keeping fruits, vegetable and flowers fresh
CN109329408A (en) A kind of fresh-cut fruit and vegetable preservation method of combination lactobacillus-fermented and co-oxidation cold sterilization technology
RU2312562C2 (en) Method for processing of fruit and vegetable product and apparatus for performing the same
CN211746596U (en) Multifunctional fruit and vegetable storage and transportation fresh-keeping machine for air sterilization and ethylene removal