WO2015078319A1 - 微胶囊抗菌剂及冰箱 - Google Patents

微胶囊抗菌剂及冰箱 Download PDF

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WO2015078319A1
WO2015078319A1 PCT/CN2014/091325 CN2014091325W WO2015078319A1 WO 2015078319 A1 WO2015078319 A1 WO 2015078319A1 CN 2014091325 W CN2014091325 W CN 2014091325W WO 2015078319 A1 WO2015078319 A1 WO 2015078319A1
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microcapsule
antibacterial agent
core material
wall material
antibacterial
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PCT/CN2014/091325
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English (en)
French (fr)
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王丽燕
姜波
李标
丁恩伟
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海尔集团公司
青岛海尔股份有限公司
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Publication of WO2015078319A1 publication Critical patent/WO2015078319A1/zh

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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N25/00—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests
    • A01N25/26—Biocides, pest repellants or attractants, or plant growth regulators, characterised by their forms, or by their non-active ingredients or by their methods of application, e.g. seed treatment or sequential application; Substances for reducing the noxious effect of the active ingredients to organisms other than pests in coated particulate form
    • A01N25/28—Microcapsules or nanocapsules
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3409—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor
    • A23L3/3445—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of gases, e.g. fumigation; Compositions or apparatus therefor in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/34—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals
    • A23L3/3454—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by treatment with chemicals in the form of liquids or solids
    • A23L3/3463—Organic compounds; Microorganisms; Enzymes
    • A23L3/3535—Organic compounds containing sulfur
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/06—Walls
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone

Definitions

  • the invention relates to a microcapsule antibacterial agent and a refrigerator.
  • a refrigerator is a type of refrigeration device that maintains a constant low temperature and is a product that keeps food or other items at a constant low temperature.
  • people's living standards continue to rise, they usually purchase more foods in the refrigerator regularly for consumption at any time.
  • the low temperature of the refrigerator will inhibit some of the normal temperature and the proliferation of high-temperature bacteria, it will help to store food.
  • the growth, reproduction and spread of bacteria, especially cold bacteria will occur. not fresh.
  • an antibacterial agent is usually placed in the refrigerator.
  • antibacterial agents commonly used such as antibacterial agents having chlorine dioxide
  • the antibacterial agents of commonly used chlorine dioxide are solid powders obtained by adsorption and stabilization of a chlorine dioxide solution with zeolite or silicate.
  • the antibacterial agent is prone to water loss during use, thereby affecting the effect of antibacterial preservation.
  • the object of the present invention is to provide a microcapsule antibacterial agent with better antibacterial and fresh-keeping effect.
  • the present invention adopts the following technical solution: a microcapsule antibacterial agent having a core material and a wall material covering the core material, wherein a volatile compound having an antibacterial fresh-keeping component is used as the core material,
  • the core material may be slowly released to the outside through the wall material, and the mass percentage of the core material contained in the microcapsule antimicrobial agent is 5% or more and less than 30%, or more than 40% and less than or equal to 90%.
  • the volatile compound is one or more of various natural and synthetic compounds having an antibacterial fresh-keeping ingredient.
  • the volatile compound is allyl isothiocyanate.
  • the wall material is made of a natural polymer material or a synthetic polymer.
  • the wall material is a microbial cell wall.
  • the wall material has an embedding ratio of 90 to 97%.
  • the wall material has a diameter of less than 100 microns.
  • the beneficial effects of the present invention are: since the microcapsule antibacterial agent of the present invention coats a volatile compound having an appropriate mass percentage and having an antibacterial fresh-keeping component as a core material in the wall material, and the core material can be slowly released to the outside through the wall material, Therefore, the microcapsule antibacterial agent has a better antibacterial and fresh-keeping effect.
  • Figure 1 is a graph showing the volatilization rate of volatile compounds versus time (days) for five microcapsule antibacterial agents under isothermal conditions.
  • Figure 2 is a graph showing the total number of colonies measured against the time (days) of the test substance under the influence of five microcapsule antimicrobial agents.
  • Figure 3 is a graph showing the volatile base nitrogen versus time (days) measured by the test substance under the influence of five microcapsule antimicrobials.
  • the microcapsule antibacterial agent according to an embodiment of the present invention has a core material and a wall material covering the core material, wherein a volatile compound having an antibacterial fresh-keeping component is used as a core material, and the quality of the core material accounts for the micro
  • the capsule antibacterial agent is 5 to 30% and does not contain 30%, or 40 to 90% and does not contain 40%.
  • the mass percentage of the core material contained in the microcapsule antimicrobial agent is 5% or more and less than 30%, or more than 40% and less than or equal to 90%.
  • the core material can be slowly released to the outside through the wall material.
  • the volatile compound is one or more of various natural and synthetic compounds having an antibacterial fresh-keeping ingredient.
  • the volatile compound is one or more of various natural and synthetic compounds having an antibacterial fresh-keeping ingredient.
  • the volatile compound used may be, for example, one or more of various natural and synthetic compounds which are capable of producing aroma, deodorization, bactericidal action, antibacterial action, fungicidal action in the form of a vapor. Function, antifungal action, insecticidal action, insect control, antioxidation, inhibition of enzyme activity and biochemical reaction.
  • volatile compounds of natural and synthetic materials are: terpenes, terpenes, linalool, menthol, terpene alcohol, eugenol, acetophenone, lavender oil, Japanese tar, eucalyptus oil, peppermint oil, rose Oil, Japanese arhat oil, 4-isopropylcycloheptadienone, chlorine dioxide, thiocyanate compound, isothiocyanate compound, allyl isothiocyanate and the like.
  • the wall material may be made of a natural polymer material or a synthetic polymer.
  • the natural polymer materials include gelatin, gum arabic, shellac, shellac, starch, dextrin, sugar, paraffin, beeswax, stearic acid (glyceride), ethyl (carboxymethyl) cellulose, chitin Wait.
  • the synthetic polymers are mainly polyethylene, polypropylene, polystyrene, polybutadiene, polyisoprene, polyvinyl alcohol, polyether, polyester, polyamide, polyurethane, and the like.
  • the wall material can also be directly used as a microbial cell wall.
  • the embedding rate of the wall material is 90 to 97%.
  • the wall material has a diameter of less than 100 microns.
  • a refrigerator (not shown) having a compartment and the microcapsule antimicrobial agent disposed in the compartment.
  • the microcapsule antimicrobial agent is fixed in the compartment by a box (not shown).
  • microcapsule antibacterial agent I microcapsule antibacterial agent I, microcapsule antibacterial agent II, microcapsule
  • the core material is allyl isothiocyanate, and the wall material is made of gelatin.
  • the core material accounts for 5% of the microcapsule antibacterial agent 1 and the wall material has an embedding rate of 90%.
  • the core material is allyl isothiocyanate, and the wall material is made of gelatin, the core material accounts for 25% of the microcapsule antibacterial agent 2, and the wall material has an embedding rate of 93%.
  • the core material is allyl isothiocyanate, and the wall material is made of gelatin.
  • the quality of the core material accounts for 45% of the microcapsule antibacterial agent III, and the wall material has an embedding rate of 95%.
  • the core material is allyl isothiocyanate, and the wall material is made of gelatin.
  • the core material accounts for 60% of the microcapsule antimicrobial agent IV, and the wall material has an embedding rate of 96%.
  • the core material is allyl isothiocyanate, and the wall material is made of gelatin, the core material accounts for 90% of the microcapsule antibacterial agent 5, and the wall material has an embedding rate of 97%.
  • the above five microcapsule antibacterial agents are superior in the release property of volatile compounds, and can be continuously volatilized, and it can be seen that the volatilization rate tends to be constant with the experiment time, and is also measured.
  • the concentration of the drug in each compartment was stably maintained at 0.01-0.4 ppm.
  • the above five microcapsule antibacterial agents were placed in five compartments, and the E. coli dilution was applied to the surface of the deoxycholate agar medium in the dish to prepare a test substance, which was placed in each compartment. The test substance is then subjected to a total number of colonies for the test substance at intervals, and the relevant data is shown in FIG.
  • microcapsule antibacterial agents are placed in five compartments, and fresh fleshy foods are placed in the compartments as test substances, and then the volatile substances are detected for the test substances at intervals. Shown in Figure 3.
  • the measured base nitrogen in the above five compartments remained at a level of less than 25 mg/100 g by 30 days.
  • microcapsule antibacterial agent since the microcapsule antibacterial agent is coated with a volatile compound having an appropriate mass percentage and an antibacterial fresh-keeping component as a core material in the wall material, and the core material can be slowly released to the outside through the wall material,
  • the microcapsule antibacterial agent has a good antibacterial and fresh-keeping effect.

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Abstract

一种微胶囊抗菌剂及冰箱，该微胶囊抗菌剂具有芯材和包覆芯材的壁材，以具有抗菌保鲜成分的挥发性化合物作为所述芯材，芯材可通过壁材缓慢释放至外部，所述微胶囊抗菌剂中所含芯材的质量百分比大于等于5%且小于30%，或者大于40%且小于等于90%。

Description

微胶囊抗菌剂及冰箱 技术领域
本发明涉及一种微胶囊抗菌剂及冰箱。
背景技术
冰箱为保持恒定低温的一种制冷设备，也是一种使食物或其他物品保持恒定低温状态的产品。目前，随着人们生活水平的不断上升，通常会定期购置比较多的食物存放在冰箱内，以便随时食用。虽然冰箱的低温会抑制部分常温和喜高温细菌的繁殖，对存储食物有一定的帮助，但是，当食物长期存放在冰箱内后仍会发生细菌尤其是喜冷细菌的生长、繁殖和传播，导致不新鲜。为了抑制冰箱内食物中细菌的生长和繁殖，以及抑制氧化等生化反应的目的，目前通常在冰箱内放置抗菌剂。目前常用的抗菌剂有很多种，如具有二氧化氯的抗菌剂，以常用的二氧化氯的抗菌剂为用沸石、硅酸盐等吸附稳定成二氧化氯溶液后得到的固体粉末。但是，该种抗菌剂在使用的过程中易失水，从而影响抗菌保鲜的效果。
有鉴于此，有必要对现有的抗菌剂予以改进以解决上述问题。
发明内容
本发明的目的在于提供一种抗菌保鲜效果较好的微胶囊抗菌剂。
为实现前述目的，本发明采用如下技术方案：一种微胶囊抗菌剂，具有芯材和包覆所述芯材的壁材，其中，以具有抗菌保鲜成分的挥发性化合物作为所述芯材，所述芯材可通过所述壁材缓慢释放至外部，所述微胶囊抗菌剂中所含的芯材的质量百分比为大于等于5％且小于30％，或者大于40％且小于等于90％。
作为本发明的进一步改进，所述挥发性化合物为具有抗菌保鲜成分的各种天然及合成化合物中的一种或者多种。
作为本发明的进一步改进，所述挥发性化合物为异硫氰酸烯丙酯。
作为本发明的进一步改进，所述壁材采用天然高分子材料或合成聚合物制成。
作为本发明的进一步改进，所述壁材为微生物细胞壁。
作为本发明的进一步改进，所述壁材的包埋率为90～97％。
作为本发明的进一步改进，所述壁材的直径在100微米以下。
本发明的目的还在于提供一种冰箱，包括间室，所述间室内设置有上述微胶囊抗菌剂。
本发明的有益效果是：由于本发明的微胶囊抗菌剂将适当质量百分比且具有抗菌保鲜成分的挥发性化合物作为芯材包覆在壁材内，且芯材可通过壁材缓慢释放至外部，所以，使得该微胶囊抗菌剂起到较好的抗菌保鲜效果。
附图说明
图1表示在等温条件下五种微胶囊抗菌剂中挥发性化合物的挥发率对时间(天)的曲线图。
图2表示测试物质在五种微胶囊抗菌剂影响下所测得的菌落总数对时间(天)的曲线图。
图3表示测试物质在五种微胶囊抗菌剂影响下所测得的挥发性盐基氮对时间(天)的曲线图。
具体实施方式
本发明一实施例中的微胶囊抗菌剂具有芯材和包覆所述芯材的壁材，其中，以具有抗菌保鲜成分的挥发性化合物为芯材，所述芯材的质量占所述微胶囊抗菌剂的5～30％且不包含30％，或者40～90％且不包含40％。换句话说，所述微胶囊抗菌剂中所含的芯材的质量百分比为大于等于5％且小于30％，或者大于40％且小于等于90％。
所述芯材可通过壁材缓慢释放至外部。所述挥发性化合物为具有抗菌保鲜成分的各种天然及合成化合物中的一种或者多种。
所述挥发性化合物为具有抗菌保鲜成分的各种天然及合成化合物中的一种或者多种。所用的挥发性化合物可以是，例如：各种天然及合成化合物中的一种或多种，这些化合物能以蒸气的形式，产生芳香作用，除臭作用，杀细菌作用，抗细菌作用，杀真菌作用，防真菌作用，杀虫作用，防虫作用，抗氧化，抑制酶活性以及生化反应。天然及合成物质的挥发性化合物的实例有：蒎烯，苎烯，里哪醇，薄荷醇，萜烯醇，丁子香酚，乙酰苯，薰衣草油，日本扁柏油，桉树油，薄荷油，玫瑰油，日本罗汉柏油，4-异丙基环庚二烯酚酮，二氧化氯，硫氰酸化合物，异硫氰酸化合物，异硫氰酸烯丙酯等等。
所述壁材可采用天然高分子材料或合成聚合物制成。所述天然高分子材料包括明胶、阿拉伯胶、虫胶、紫胶、淀粉、糊精、糖类、石蜡、蜂蜡、硬脂酸(甘油酯)、乙基(羧甲基)纤维素、甲壳素等。合成聚合物主要有聚乙烯、聚丙烯、聚苯乙烯、聚丁二烯、聚异戊二烯、聚乙烯醇、聚醚、聚酯、聚酰胺、聚氨酯等。所述壁材还可以直接采用微生物细胞壁。所述壁材的包埋率为90～97％。所述壁材的直径在100微米以下。
本实施例中还提供了一种冰箱(未图示)，所述冰箱具有间室和设置在间室内的所述微胶囊抗菌剂。所述微胶囊抗菌剂通过一盒体(未图示)固定在间室内。
为了更好的说明本发明所述的微胶囊抗菌剂，下面给出通过采用不同质量比所得到的五种不同成分的微胶囊抗菌剂(微胶囊抗菌剂一、微胶囊抗菌剂二、微胶囊抗菌剂三、微胶囊抗菌剂四、微胶囊抗菌剂五)以及实验数据来详细说明本发明的微胶囊抗菌剂在使用中所达到的抗菌和保鲜功效。
微胶囊抗菌剂一
芯材为异硫氰酸烯丙酯，壁材由明胶制成，所述芯材的质量占微胶囊抗菌剂一的5％，壁材的包埋率为90％。
微胶囊抗菌剂二
芯材为异硫氰酸烯丙酯，壁材由明胶制成，所述芯材的质量占微胶囊抗菌剂二的25％，壁材的包埋率为93％。
微胶囊抗菌剂三
芯材为异硫氰酸烯丙酯，壁材由明胶制成，所述芯材的质量占微胶囊抗菌剂三的45％，壁材的包埋率为95％。
微胶囊抗菌剂四
芯材为异硫氰酸烯丙酯，壁材由明胶制成，所述芯材的质量占微胶囊抗菌剂四的60％，壁材的包埋率为96％。
微胶囊抗菌剂五
芯材为异硫氰酸烯丙酯，壁材由明胶制成，所述芯材的质量占微胶囊抗菌剂五的90％，壁材的包埋率为97％。
实验一
将上述五种微胶囊抗菌剂置于五个独立的隔间内，且每个隔间处于相同的温度状态下。在此期间，将五种微胶囊抗菌剂间隔一定时间称重，将减少 的重量看作挥发性化合物挥发掉的量，并以时间计算挥发率(％)(挥发率＝微胶囊抗菌剂测试减少的重量/微胶囊抗菌剂的原始重量)，有关数据显示于图1中。
从图1中可看出，上述五个微胶囊抗菌剂在挥发性化合物的释放性能上是优越的，可持续挥发，并且可看出，随着实验时间，挥发率趋向于恒定，同时还测得各隔间内的药效浓度稳定地保持在0.01-0.4ppm。
实验二
将上述五种微胶囊抗菌剂放置在五个隔间内，同时将大肠杆菌稀释液涂到碟中的脱氧胆酸盐琼脂培养基的表面以制得测试物质，在每个隔间内分别放置该测试物质，然后间隔一定时间对该测试物质进行菌落总数检测，有关数据显示于图2中。
从图2中可看出，上述五个隔间内的测试物质在微胶囊抗菌剂的作用下，经过30天的时间，所测得的菌落总数仍保持在食品的安全范围内(菌落总数：105个)。
在上述实验二中，五个隔间相互独立，且均处于相同的温度状态下。
实验三
将上述五种微胶囊抗菌剂放置在五个隔间内，同时将新鲜的肉质食品放置在隔间内以作测试物质，然后间隔一定时间对该测试物质进行挥发性盐基氮检测，有关数据显示于图3中。
从图3中可看出，上述五个隔间内的测试物质到30天时，所测得的挥发性盐基氮仍保持在小于25mg/100g的范围内。
在上述实验三中，五个隔间相互独立，且均处于相同的温度状态下。
通过上述三个实验可以看出，上述五种微胶囊抗菌剂均能很好的起到抗菌保鲜的功能，且其持续抗菌保鲜的时间长。
综上所述，由于上述微胶囊抗菌剂采用将具有适当质量百分比且抗菌保鲜成分的挥发性化合物作为芯材包覆在壁材内，且芯材可通过壁材缓慢释放至外部，所以，使得该微胶囊抗菌剂起到较好的抗菌保鲜效果。
尽管为示例目的，已经公开了本发明的优选实施方式，但是本领域的普通技术人员将意识到，在不脱离由所附的权利要求书公开的本发明的范围和精神的情况下，各种改进、增加以及取代是可能的。

Claims (8)

  1. 一种微胶囊抗菌剂，具有芯材和包覆所述芯材的壁材，其中，
    以具有抗菌保鲜成分的挥发性化合物作为所述芯材，所述芯材可通过所述壁材缓慢释放至外部，所述微胶囊抗菌剂中所含的芯材的质量百分比为大于等于5％且小于30％，或者大于40％且小于等于90％。
  2. 根据权利要求1所述的微胶囊抗菌剂，其中
    所述挥发性化合物为具有抗菌保鲜成分的各种天然及合成化合物中的一种或者多种。
  3. 根据权利要求2所述的微胶囊抗菌剂，其中
    所述挥发性化合物为异硫氰酸烯丙酯。
  4. 根据权利要求1所述的微胶囊抗菌剂，其中
    所述壁材采用天然高分子材料或合成聚合物制成。
  5. 根据权利要求1所述的微胶囊抗菌剂，其中
    所述壁材为微生物细胞壁。
  6. 根据权利要求1所述的微胶囊抗菌剂，其中
    所述壁材的包埋率为90～97％。
  7. 根据权利要求1所述的微胶囊抗菌剂，其中
    所述壁材的直径在100微米以下。
  8. 一种冰箱，包括间室，所述间室内设置有如权利要求1至7项中任意一项所述的微胶囊抗菌剂。
PCT/CN2014/091325 2013-11-29 2014-11-17 微胶囊抗菌剂及冰箱 WO2015078319A1 (zh)

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