JPH0430804B2 - - Google Patents
Info
- Publication number
- JPH0430804B2 JPH0430804B2 JP63112062A JP11206288A JPH0430804B2 JP H0430804 B2 JPH0430804 B2 JP H0430804B2 JP 63112062 A JP63112062 A JP 63112062A JP 11206288 A JP11206288 A JP 11206288A JP H0430804 B2 JPH0430804 B2 JP H0430804B2
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- temperature
- steam
- culture medium
- sterilization
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
Landscapes
- Mushroom Cultivation (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
本発明方法は高温高圧殺菌機を利用したキノコ
培地容器の殺菌方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The method of the present invention relates to a method for sterilizing mushroom culture containers using a high-temperature and high-pressure sterilizer.
従来の技術
従来から、エノキタケなどの食用キノコの人口
栽培については、オガクズを主体とした培地が利
用されている。この培地の殺菌について従来はバ
ツチ式の加圧蒸気釜による蒸し工程と放冷という
工程を採用している。BACKGROUND ART Conventionally, a culture medium based on sawdust has been used for the artificial cultivation of edible mushrooms such as enokitake. Conventionally, sterilization of this culture medium involves a steaming process using a batch-type pressurized steam pot and a process of allowing it to cool.
発明が解決しようとする課題
上記のような従来のバツチ式加圧蒸気釜による
殺菌工程では、蒸し工程と放冷工程に６〜８時間
を要し、一日バツチ運転となることが多く、極め
て非能率的である難点がみられた。Problems to be Solved by the Invention In the conventional sterilization process using a batch-type pressurized steam oven as described above, the steaming process and the cooling process require 6 to 8 hours, and batch operation is often carried out all day long. The problem was that it was inefficient.
本発明は上記のような難点を解消するもので、
高湿高圧殺菌機を利用して、短時間でキノコ培地
の十分な殺菌を実現する方法を提供しようとする
ものである。 The present invention solves the above-mentioned difficulties.
The present invention aims to provide a method for sufficiently sterilizing a mushroom culture medium in a short period of time by using a high-humidity, high-pressure sterilizer.
課題を解決するための手段
本発明は上記目的を達成するために、オガクズ
を主体とするキノコ培地の入つた容器を、蒸気式
高温高圧殺菌機に装填後、一旦真空発生機により
殺菌機内を30〜40Torrに減圧して蒸気を注入し
て常圧まで戻す脱気と蒸気注入工程と、この工程
を２回以上繰り返してキノコ培地の中心温度を殺
菌値（F0値）として一定時間保持する殺菌工程
と、再び真空発生機による減圧をしてキノコ培地
の中心温度が20〜25℃になるまでの冷却工程と、
大気開放弁を開放して常圧に戻す工程と、からな
るキノコ培地容器の殺菌方法とした。Means for Solving the Problems In order to achieve the above-mentioned object, the present invention aims to load a container containing a mushroom medium containing sawdust into a steam-type high-temperature high-pressure sterilizer, and then use a vacuum generator to sterilize the inside of the sterilizer for 30 minutes. Sterilization involves reducing the pressure to ~40 Torr, injecting steam, and returning it to normal pressure, and then repeating this process two or more times to maintain the center temperature of the mushroom medium for a certain period of time as a sterilization value (F 0 value). step, and a cooling step in which the pressure is reduced again using a vacuum generator until the center temperature of the mushroom culture reaches 20 to 25°C.
The method for sterilizing a mushroom culture medium container consists of the steps of opening the atmosphere release valve and returning the pressure to normal pressure.
作 用
本発明方法では、オガクズを主体とするキノコ
培地の入つた容器を、蒸気式高温高圧殺菌機に装
填後、一旦真空発生機により殺菌機内を30〜
40Torrに減圧して、キノコ培地の入つた容器内
の空気を追い出してから蒸気を注入する。従つ
て、蒸気による加熱温度はキノコ培地の中心まで
急速に行き渡り、十分な殺菌作用が行われる。こ
の減圧及び蒸気注入の操作を少なくとも２回繰り
返すことにより、キノコ培地は均一に且つ早急に
殺菌温度に到達できる。Effects In the method of the present invention, after loading a container containing a mushroom medium mainly composed of sawdust into a steam-type high-temperature high-pressure sterilizer, the inside of the sterilizer is sterilized for 30 to 30 minutes using a vacuum generator.
Reduce the pressure to 40 Torr and expel the air in the container containing the mushroom medium before injecting steam. Therefore, the heating temperature caused by the steam quickly reaches the center of the mushroom culture medium, and a sufficient sterilization effect is achieved. By repeating this operation of depressurization and steam injection at least twice, the mushroom culture medium can uniformly and quickly reach the sterilization temperature.
蒸気殺菌終了後、真空冷却を行うことにより冷
却時間も短縮され、全体の工程としても大幅な時
間短縮作用が認められる。 After steam sterilization, vacuum cooling is performed to shorten the cooling time, and a significant time reduction effect is recognized for the overall process.
実施例
以下、実施例として示した図面につき説明す
る。第１図は本発明方法に利用する高湿高圧殺菌
機の要部説明図で、１は高温高圧殺菌機、２はト
レー、３はキノコ培地の入つた容器、４は排気
弁、５は真空発生機、６は大気開放弁、７は蒸気
弁、８は排液弁を示す。Embodiment Hereinafter, drawings shown as embodiments will be explained. Figure 1 is an explanatory diagram of the main parts of the high-humidity and high-pressure sterilizer used in the method of the present invention, where 1 is the high-temperature and high-pressure sterilizer, 2 is the tray, 3 is the container containing the mushroom culture medium, 4 is the exhaust valve, and 5 is the vacuum The generator, 6 is an atmosphere release valve, 7 is a steam valve, and 8 is a drain valve.
キノコ培地として、水分60％前後のオガクズを
１Kg充填した（直径）120mm×180（高さ）のキノ
コ培地用容器３をトレー２に載せて、高温高圧殺
菌機１内へ装填後、排気弁４を開放して真空発生
機５により殺菌機１内に減圧する。30〜40Torr
になるまで減圧後、排気弁４を閉とし、真空発生
機５の停止をし、蒸気弁７を開として殺菌機１内
を常圧まで戻す（脱気と蒸気注入工程）。次いで、
蒸気弁７を閉とし、再び真空発生機５による減圧
を行い、蒸気弁７を開とし、殺菌温度（121℃）
まで昇温する。ほぼ飽和蒸気圧となる。 As a mushroom culture medium, a container 3 for mushroom culture medium (diameter) 120 mm x 180 mm (height) filled with 1 kg of sawdust with a moisture content of around 60% is placed on the tray 2, and after loading into the high temperature and high pressure sterilizer 1, the exhaust valve 4 is opened and the pressure inside the sterilizer 1 is reduced by the vacuum generator 5. 30~40Torr
After the pressure is reduced to , the exhaust valve 4 is closed, the vacuum generator 5 is stopped, and the steam valve 7 is opened to return the inside of the sterilizer 1 to normal pressure (deaeration and steam injection process). Then,
Close the steam valve 7, reduce the pressure again using the vacuum generator 5, open the steam valve 7, and set the sterilization temperature (121°C).
Increase the temperature to. Almost saturated vapor pressure.
121℃の殺菌温度で、蒸気弁７を開閉して温度
微調整をしながら、一定時間保持する（殺菌工
程）。加熱殺菌終了後、大気開放弁６を開放して
常圧まで戻す。 A sterilization temperature of 121° C. is maintained for a certain period of time while finely adjusting the temperature by opening and closing the steam valve 7 (sterilization process). After the heat sterilization is completed, the atmosphere release valve 6 is opened to return the pressure to normal pressure.
大気開放弁６を閉じ、排気弁４を開とし、真空
発生機５により真空冷却をする。キノコ培地の中
心温度が20〜25℃になるまで冷却後、排気弁４を
閉とし、真空発生機を停止し、大気開放弁６を開
として常圧に戻す。排液弁８を開とし、ドレン類
を排出し、安全を確認後、高温高圧殺菌機の蓋を
開けて、製品を取出す。 The atmosphere release valve 6 is closed, the exhaust valve 4 is opened, and the vacuum generator 5 performs vacuum cooling. After cooling the mushroom culture medium until the center temperature reaches 20 to 25°C, the exhaust valve 4 is closed, the vacuum generator is stopped, and the atmosphere release valve 6 is opened to return to normal pressure. Open the drain valve 8, drain the drain, and after confirming safety, open the lid of the high-temperature and high-pressure sterilizer and take out the product.
第２図に示したグラフは本発明の実施例として
時間、温度及びF0値の関係を示すものである。
F0値は食品の調理殺菌工程における食品の中心
温度による殺菌値を示す値である。比較例として
第３図を示した。第２図の例は減圧、蒸気注入、
減圧、蒸気注入後真空冷却したもので、１時間40
分の処理でF0値が31を示している。この例で２
回繰り返して減圧と蒸気注入をすることにより、
２度目の場合、キノコ培地の入つた容器内が若干
温まり、再度減圧することより沸騰することとな
り、蒸気と空気とが混合して排出されるため、脱
気効果が上がるものと考えられる。尚、F0値は
20程度でよいとされているので、さらに時間短縮
が可能であると判断される。 The graph shown in FIG. 2 shows the relationship between time, temperature and F 0 value as an example of the present invention.
The F 0 value is a value indicating the sterilization value depending on the center temperature of the food in the food cooking sterilization process. FIG. 3 is shown as a comparative example. The example in Figure 2 shows depressurization, steam injection,
It is vacuum cooled after depressurization and steam injection, and it takes 40 hours for 1 hour.
The F 0 value shows 31 in minutes of processing. In this example 2
By repeatedly depressurizing and injecting steam,
In the second case, the inside of the container containing the mushroom culture medium warms up a little, and when the pressure is reduced again, it boils, and steam and air are mixed and discharged, which is thought to increase the deaeration effect. Furthermore, the F 0 value is
Since it is said that about 20 is sufficient, it is judged that the time can be further shortened.
第３図に示したデータは、減圧と蒸気注入を１
回だけ行つた例で、直ちに真空冷却をしている
が、２時間40分の処理時間でF0値が25であつた。 The data shown in Figure 3 shows that the depressurization and steam injection
In this example, the process was performed only once, and vacuum cooling was performed immediately, but the F 0 value was 25 after a treatment time of 2 hours and 40 minutes.
発明の効果
本発明方法によると、キノコ培地の入つた容器
を高湿高圧殺菌機内に装填後、減圧及び蒸気注入
手段を少なくとも２回繰り返した後、蒸気による
殺菌温度の保持を行い、殺菌完了後、真空冷却す
ることにより、従来例と比較して大幅な時間短縮
効果が得られ、短時間で十分な殺菌効果が実現で
きるようになつた。Effects of the Invention According to the method of the present invention, after loading a container containing a mushroom culture medium into a high-humidity high-pressure sterilizer, the pressure reduction and steam injection means are repeated at least twice, and then the sterilization temperature is maintained by steam, and after the sterilization is completed. By vacuum cooling, a significant time reduction effect can be obtained compared to conventional methods, and a sufficient sterilization effect can now be achieved in a short period of time.
第１図は本発明方法に使用する高湿高圧殺菌機
の要部断面説明図、第２図は本発明方法による時
間、温度及びF0値の関係図、第３図は減圧、蒸
気注入を１回にした比較関係図である。
１……高温高圧殺菌機、３……キノコ培地の入
つた容器、５……真空発生機。
Fig. 1 is a cross-sectional explanatory diagram of the main parts of the high-humidity high-pressure sterilizer used in the method of the present invention, Fig. 2 is a diagram of the relationship between time, temperature, and F 0 value according to the method of the present invention, and Fig. 3 is a diagram showing the relationship between time, temperature, and F 0 value according to the method of the present invention, and Fig. 3 shows the decompression and steam injection. It is a comparative relationship diagram made once. 1... High temperature and high pressure sterilizer, 3... Container containing mushroom culture medium, 5... Vacuum generator.
Claims (1)
器を、蒸気式高温高圧殺菌機に装填後、一旦真空
発生機により殺菌機内を30〜40Torrに減圧して
蒸気を注入して常圧まで戻す脱気と蒸気注入工程
と、この工程を２回以上繰り返してキノコ培地の
中心温度を殺菌値（F0値）として一定時間保持
する殺菌工程と、再び真空発生機による減圧をし
てキノコ培地の中心温度が20〜25℃になるまでの
冷却工程と、大気開放弁を開放して常圧に戻す工
程と、からなることを特徴とするキノコ培地容器
の殺菌方法。1. After loading the container containing the mushroom medium, which is mainly made of sawdust, into a steam-type high-temperature, high-pressure sterilizer, the pressure inside the sterilizer is reduced to 30 to 40 Torr using a vacuum generator, and then steam is injected to degas it back to normal pressure. A sterilization process in which this process is repeated two or more times to maintain the center temperature of the mushroom culture medium as a sterilization value (F 0 value) for a certain period of time, and the pressure is reduced again using a vacuum generator to maintain the center temperature of the mushroom culture medium. A method for sterilizing a mushroom culture medium container, comprising a cooling step until the temperature reaches 20 to 25°C, and a step of opening an atmosphere release valve to return the pressure to normal pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63112062A JPH01285123A (en) | 1988-05-09 | 1988-05-09 | How to sterilize mushroom culture containers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63112062A JPH01285123A (en) | 1988-05-09 | 1988-05-09 | How to sterilize mushroom culture containers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01285123A JPH01285123A (en) | 1989-11-16 |
| JPH0430804B2 true JPH0430804B2 (en) | 1992-05-22 |
Family
ID=14577092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63112062A Granted JPH01285123A (en) | 1988-05-09 | 1988-05-09 | How to sterilize mushroom culture containers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01285123A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03280812A (en) * | 1990-03-28 | 1991-12-11 | Hisaka Works Ltd | Cooling method in sterilization of mushroom medium |
| JPH04142272A (en) * | 1990-09-21 | 1992-05-15 | Hisaka Works Ltd | Vessel with filter-containing stopping cap used for retort-pasteurization |
| CN102972202A (en) * | 2012-08-30 | 2013-03-20 | 上海雪榕生物科技股份有限公司 | Sterilization method of edible fungus culture medium |
| SE542211C2 (en) * | 2016-11-30 | 2020-03-10 | Biosteam Ab | A method of and a device for growing of mushrooms |
| KR102729483B1 (en) * | 2022-05-30 | 2024-11-14 | 이동석 | method of growing shiitake mushrooms using the ozone gas forced sterilization method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5429730A (en) * | 1977-08-01 | 1979-03-05 | Kouji Sou | Preparating method and its device for culture soil for mushroom utilizing gasspasteurization |
| JPS56127019A (en) * | 1980-03-08 | 1981-10-05 | Shinji Tanaka | Method and apparatus for sterilizing mashroom culturing bottle |
-
1988
- 1988-05-09 JP JP63112062A patent/JPH01285123A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01285123A (en) | 1989-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1052630C (en) | Air-containing cooking system | |
| JPH0430804B2 (en) | ||
| US4971761A (en) | Temperature control method for an ethylene oxide sterilization cycle | |
| JP4429684B2 (en) | Method for producing containerized aseptic rice and containerized aseptic rice | |
| JP2001069927A (en) | Production of sterile packed rice | |
| CN111165564A (en) | Sterilization process of canned food | |
| JP3515827B2 (en) | How to make aseptic cooked rice | |
| JPH10191887A (en) | Oxidization suppressed tea manufacturing method | |
| JP2583808B2 (en) | Method for producing pressurized rice and container for cooking | |
| JP3281609B2 (en) | Manufacturing method of aseptic rice | |
| JPH0198452A (en) | Retort packaging of corn | |
| US2073006A (en) | Method of processing artichokes | |
| JPH10146160A (en) | How to make aseptic cooked rice | |
| KR0147000B1 (en) | Canned rice wine recipe | |
| KR102915707B1 (en) | Manufacturing method for processed ginseng and processed ginseng by the same | |
| JPS6319149B2 (en) | ||
| US1348689A (en) | Process of preparing or treating cocoanut and product obtained thereby | |
| AU625824B2 (en) | Temperature control method for an ethylene oxide sterilization cycle | |
| JP2001190240A (en) | Method for producing onion finished in heat treatment | |
| JPH0937725A (en) | Method for sterilizing packed rice and packed rice | |
| JP2002345446A (en) | Heat sterilizer for gas-containing vessel for carrying out preheating | |
| JPH08214821A (en) | Production of fermented natto | |
| JP2001037447A (en) | Cooking of fish boiled with soy for packaged product | |
| US1764491A (en) | Stabilized pineapple and process for producing the same | |
| JPS6027355A (en) | Preparation of natto (fermented soybean) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |