CN105766372A - Microwave production line sterilization method for fungus bags of edible fungi - Google Patents
Microwave production line sterilization method for fungus bags of edible fungi Download PDFInfo
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- CN105766372A CN105766372A CN201610189545.0A CN201610189545A CN105766372A CN 105766372 A CN105766372 A CN 105766372A CN 201610189545 A CN201610189545 A CN 201610189545A CN 105766372 A CN105766372 A CN 105766372A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G18/00—Cultivation of mushrooms
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- Apparatus For Disinfection Or Sterilisation (AREA)
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Abstract
The invention discloses a microwave production line sterilization method for fungus bags of edible fungi, relates to the technical field of processing of the edible fungi, in particular to a method for microwave sterilization of the fungus bags in the production process of the fungus bags of the edible fungi. The method comprises a fungus bag preparation step and a microwave sterilization step and is characterized in that in the fungus bag preparation step, the moisture content of fungus bag culture media is 62%-63%, and a sealing material of the fungus bags adopts PU15 sponge blocks; in the microwave sterilization step, the fungus bags are closely wrapped in nonwoven fabric and heated to 98-99 DEG C through microwave radiation under the power of 148 KW and the rotating speed of 260 rpm. Microwaves can penetrate through the media and materials deeply and can perform heating sterilization on outsides and insides of the materials of the fungus bags consistently; the method has the advantages of low temperature, normal pressure, high efficiency, rapidness, low energy consumption, easiness in operation and maintenance, long shelf life of products and the like. The sponge blocks are used for sealing, bag expanding and blasting are avoided; the bags are covered with the nonwoven fabric, so that the microwave sterilization effect on microorganisms on outer surfaces of the fungus bags can be guaranteed.
Description
Technical field
The present invention relates to Edible mushroom processing technical field, be specifically related to a kind of edible fungi method that bacterium bag adopts microwave sterilizating in bacterium bag production process.
Background technology
At present, in Edible Fungi process, commonly use steamer high temperature (normal pressure, high pressure) steam sterilization in bacterium bag sterilization link, use timber and fire coal as fuel, both there is potential safety hazard, consume again resource and the energy, welding in a large number.Microwave technology generally uses in dry field and food, parasite killing industry.Application number be 201320720232.5 patent provide a kind of microwave bacterium bag bactericidal unit, it is possible to achieve edible fungi bag microwave sterilizating.But, when actually used, find that it there is problems in that
1, bacterium wraps in moisture content decline after microwave sterilizating, be unfavorable for edible fungi mycelium sprout after field planting, simultaneously as moisture content is low, in compost, bulky grain moisture penetration is not enough, cause middle and late stage mould contamination rate high to 20～30%, and because the moisture content low bacterium amount of contracting for fixed output quotas have dropped 10～15%；
2, in microwave sterilizating process, bacterium bag plunger can jump out, and loses seal, affects sterilization effect；
3, bacterium bag surface and pocket gap sterilization effect are not good, and pollution rate is high.
Summary of the invention
The technical problem to be solved is: provide a kind of edible fungi bag microwave production line sterilizing methods.
The technical solution of the present invention is: a kind of edible fungi bag microwave production line sterilizing methods, the step of standby step and microwave sterilizating is packed including bacterium, it is characterized in that, bacterium packs in standby step, bacterium bag compost moisture content is 62～63%, and bacterium encapsulating gate material uses PU15 sponge block, in the step of microwave sterilizating, use non-woven fabrics Bao Yan outside bacterium bag, make bacterium bag heat to 98～99 degree by microwave radiation under 148KW power, rotating speed 260 revs/min.
Described bacterium packs in standby step, and bacterium encapsulating gate material uses 2 pieces of 4 × 4 × 1.5cmPU15 sponge blocks.
The solution have the advantages that: microwave energy is penetrated into the deep of medium and material, can to as one man pasteurization in bacterium bag material table；And have low temperature, normal pressure, efficiently, quickly, low power consuming, easily operation, easy care, the advantage such as shelf life of products length.Sponge block is used to seal ensure not rise bag, not quick-fried bag；It is cladded with non-woven fabrics, it is ensured that bacterium bag appearance microorganism microwave sterilizating effect.
Detailed description of the invention
Embodiment 1:
1. pre-formed bags: according to hard assorted sawdust 60～62%, wood shavings material 19～21.5%, wheat bran 12%, Semen Glycines powder 2%, Semen Maydis powder 3%, Gypsum Fibrosum 1%, Calx 0.2～0.5% ratio, various supplementary materials are sufficiently mixed and stir, without caking and dry core, compost moisture content reaches 62～63%, sack filling machine is utilized to pack after spice, expecting during pack that degree of tightness is suitable for, single bag of bacterium bag weight in wet base should at 1.25kg～1.5kg.
2. sealing: clear up bag mouth with nest mouth machine nest mouth after pack, uses 2 pieces 4 × 4 × 1.5cmPU15(15 kilogram/cubic metre) sponge block seals, inspection bacterium bag wall, nothing draw thin, wear and tear, puncture.
3. sterilizing: use microwave bacterium bag bactericidal unit sterilizing, spreading non-woven fabrics at the bottom of plastics Turnround basket, bacterium bag accumbency is in plastics Turnround basket, and non-woven fabrics turnover is wrapped bacterium and covered tightly, by microwave radiation (frequency 2450HZ) 16min under 148KW power rotating speed 260 revs/min, bacterium bag heats to more than 98 degree.
4. cooling: chilling room cleanliness factor reaches 10,000 grades, naturally cools to room temperature or less than 30 degree, according to sterility requirements inoculated and cultured.
5. effect: bacterium bag deformation rate is lower than 5%, and pollution rate is lower than 0.5%.
Microwave energy is penetrated into the deep of medium and material, can to as one man pasteurization in bacterium bag material table, and there is low temperature, normal pressure, efficiently, quickly (being generally 2～3min), low power consuming, easily operation, easy care, advantage that shelf life of products length (can extend more than 1/3) etc..And conventional vapor sterilizing need from table and pass through water vapour penetration.
As medium, edible fungi bag normal-pressure sterilization, generally treats that in pot, bacterium bag temperature reaches 95～105 degree using atmospheric steam, keep can be only achieved for 6～8 hours effect, and overall sterilization time must need more than 20 hours.Autoclaving, generally using high steam as medium, treats after draining cold air that in pot, bacterium bag temperature reaches to maintain under 128 DEG C (1.5～1.6 kg/cm) within 2.5～3.5 hours, to can be only achieved effect, and overall sterilization time needs more than 10 hours.The method of heat energy killing microorganisms, spore and worm's ovum that this process produces with microwave radiation.Due to the synchronism of material each position sterilization, sterilizing time is short is only 16min, is avoided that because of the nutrient content of long heat effect bacterium bag compost, increases substantially sterilizing efficiency simultaneously, it is possible to accomplish that bag synchronizes sterilizing, it is to avoid compost becomes sour because shelving.
Bacterium bag moisture content after microwave sterilizating reaches 60%.Under conventional vapor sterilization method, the moisture content of bacterium bag can increase by 2～3% in sterilization process, and during spice, compost moisture content needs 57～58%；And the moisture content of bacterium bag reduces 2～2.5% in sterilization process under microwave sterilizating mode, during spice, compost moisture content needs 62～62.5%.When so requiring the bacterium bag spice that microwave sterilizating needs, moisture content needs to exceed the 4～5.5% of conventional vapor sterilization method, and hydrone can infiltrate into the inside of bulky grain compost better, and sterilization effect is obvious.In controlled trial, the bacterium bag of microwave sterilizating is cultivated and is not found the mould contamination because bulky grain compost sterilizing does not thoroughly cause mid-term, and the bacterium of conventional sterilization wraps in and occurs mid-term being caused mould contamination by bulky grain compost.
In order to ensure bacterium bag appearance sterilization effect, in bag quality, seal and add covering has different with conventional sterilization requirement.Bag requires that tightness is suitable for, and Bag Material does not separate；2 pieces of 4 × 4 × 1.5cmPU15 sponge blocks are used to seal ensure not rise bag, not quick-fried bag；It is cladded with non-woven fabrics, it is ensured that bacterium bag appearance microorganism microwave sterilizating effect.
Conventional vapor sterilizing, because the time is long, reduces by 0.8～1.0 after pH sterilizing；Change less than 0.1 after microwave sterilizating pH sterilizing.So substantially spice can reconcile spice according to edible fungi each kind mycelium pH optimum range, particularly accomplishes under hot weather that bag synchronizes sterilizing, it is to avoid the ambient temperature impact on compost.
In tradition Edible Fungi, in steam sterilization process, bacterium bag meeting absorption portion steam, increases its moisture content, and after sterilizing, bacterium bag moisture content can reach 60%, and after sterilizing, pH reduces by 0.8～1.0, field planting after the suitable edible fungi mycelium sprouting of the bacterium bag so produced；And such bacterium wraps in the moisture content of bacterium bag after microwave sterilizating and drops to 54～55.5%, after sterilizing, pH reduces only 0.1, the bacterium bag of this moisture content and pH be unfavorable for edible fungi mycelium sprout after field planting.Moisture content is low, and in compost, bulky grain moisture penetration is not enough, causes middle and late stage mould contamination rate high to 20～30%, and the bacterium amount of contracting for fixed output quotas declines 10～15%.Bacterium bag compost moisture content in process for preparation of microwave sterilizating adjusts to 62～62.5%, and pH adjusts to 6～6.5, and after making bacterium wrap in microwave sterilizating, moisture content and pH value range are suitable for.
The bacterium that tradition prepares wraps in plunger in the process that microwave sterilizating is brought rapidly up and can jump out, and loses seal.Change sponge block sealing into, it has been found that indivedual bacterium bag nest mouth places collapse out or rise bag, quick-fried bag.Using the sealing of high-density sponge block, bacterium bag very easily rises bag, quick-fried bag, uses the sealing of low-density sponge block, and bacterium bag exists the problem that pollution rate is higher.And use cmPU15(15 kilogram/cubic metre, 4 × (1.5～2)) sponge block sealing, can ensure that after microwave sterilizating that bacterium bag deformation rate is lower than 5%, meet technological requirement.
The direct microwave sterilizating of bacterium bag that tradition prepares, owing to microwave property, bacterium bag surface and pocket gap sterilization effect are not good.Microwave bacterium bag bactericidal unit sterilizing, uses paving non-woven fabrics at the bottom of plastics Turnround basket, and bacterium bag accumbency is in plastics Turnround basket, and non-woven fabrics turnover is wrapped bacterium and covered tightly, it is ensured that bacterium bag appearance microorganism microwave sterilizating effect, reduces pollution rate.
Use microwave bacterium bag bactericidal unit sterilizing, carry out under rotating speed 200,220,240,260,280,300 revs/min by microwave radiation (frequency 2450HZ) contrast at 148KW power, being heated by the bacterium bag of microwave radiation (frequency 2450HZ) under finding 280,300 revs/min and only reach 95～96 degree, pollution rate is more than more than 10%；200, heated by the bacterium bag of microwave radiation (frequency 2450HZ) under 220,240 revs/min and can reach 99～100 degree, but rise bag and damaged bag are more than 20%；Only by microwave radiation (frequency 2450HZ) under rotating speed 260 revs/min, bacterium bag heats to 98～99 degree, and bacterium bag deformation rate is lower than 5%, and pollution rate is lower than 1%.
Claims (2)
1. an edible fungi bag microwave production line sterilizing methods, the step of standby step and microwave sterilizating is packed including bacterium, it is characterized in that, bacterium packs in standby step, bacterium bag compost moisture content is 62～63%, and bacterium encapsulating gate material uses PU15 sponge block, in the step of microwave sterilizating, use non-woven fabrics Bao Yan outside bacterium bag, make bacterium bag heat to 98～99 degree by microwave radiation under 148KW power, rotating speed 260 revs/min.
2. edible fungi bag microwave production line sterilizing methods as claimed in claim 1, it is characterised in that described bacterium packs in standby step, bacterium encapsulating gate material uses 2 pieces of 4 × 4 × 1.5cmPU15 sponge blocks.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106613323A (en) * | 2016-11-16 | 2017-05-10 | 贺州学院 | Sterilization method of edible fungus stick |
| CN106718046A (en) * | 2016-12-06 | 2017-05-31 | 贺州学院 | A kind of simple sterilizing methods of edible fungus stick |
| CN108450232A (en) * | 2018-03-22 | 2018-08-28 | 湖北省农业科学院农产品加工与核农技术研究所 | The method for cultivating agrocybe with mushroom mushroom bran |
| CN113141972A (en) * | 2020-01-23 | 2021-07-23 | 贵阳新奇微波工业有限责任公司 | Microwave continuous sterilization production method for edible fungus bags |
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| CN2193351Y (en) * | 1994-04-27 | 1995-03-29 | 仝昭巍 | Flexible airtight rotary feeder unit with offset outlet |
| CN1836485A (en) * | 2005-03-23 | 2006-09-27 | 侯梦斌 | Edible fungus package production apparatus and method |
| CN102826257A (en) * | 2012-09-27 | 2012-12-19 | 浙江大学台州研究院 | Sealing device of automatic packaging machine of disposable syringe |
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2016
- 2016-03-30 CN CN201610189545.0A patent/CN105766372A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2193351Y (en) * | 1994-04-27 | 1995-03-29 | 仝昭巍 | Flexible airtight rotary feeder unit with offset outlet |
| CN1836485A (en) * | 2005-03-23 | 2006-09-27 | 侯梦斌 | Edible fungus package production apparatus and method |
| CN102826257A (en) * | 2012-09-27 | 2012-12-19 | 浙江大学台州研究院 | Sealing device of automatic packaging machine of disposable syringe |
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| 高举: "袋制菌种封口新法", 《农村新技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106613323A (en) * | 2016-11-16 | 2017-05-10 | 贺州学院 | Sterilization method of edible fungus stick |
| CN106718046A (en) * | 2016-12-06 | 2017-05-31 | 贺州学院 | A kind of simple sterilizing methods of edible fungus stick |
| CN108450232A (en) * | 2018-03-22 | 2018-08-28 | 湖北省农业科学院农产品加工与核农技术研究所 | The method for cultivating agrocybe with mushroom mushroom bran |
| CN113141972A (en) * | 2020-01-23 | 2021-07-23 | 贵阳新奇微波工业有限责任公司 | Microwave continuous sterilization production method for edible fungus bags |
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Application publication date: 20160720 |