CN104886229A - A cold storage and freshness preservation method of treating green bamboo shoots covered with bamboo sheath with the combination of salicylic acid and ozone - Google Patents
A cold storage and freshness preservation method of treating green bamboo shoots covered with bamboo sheath with the combination of salicylic acid and ozone Download PDFInfo
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- CN104886229A CN104886229A CN201510186834.0A CN201510186834A CN104886229A CN 104886229 A CN104886229 A CN 104886229A CN 201510186834 A CN201510186834 A CN 201510186834A CN 104886229 A CN104886229 A CN 104886229A
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- bamboo shoots
- salicylic acid
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- dendrocalamopsis oldhami
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Abstract
The present invention relates to a freshness preservation method of green bamboo shoots, which belongs to the technical field of vegetable freshness preservation and aims to provide a cold storage and freshness preservation method of soaking green bamboo shoots covered with bamboo sheath with the combination of salicylic acid and ozone. The technological process of the green bamboo shoot freshness preservation is as follows: picking and gradient pre-cooling, washing and trimming, soaking, cold air drying, and refrigerating at constant temperatures. The soaking treatment of green bamboo shoots covered with bamboo sheath with the combination of salicylic acid and ozone slows down the increasing rate of lignin in green bamboo shoots, reduces the water loss of green bamboo shoots, decreases the consumption of nutritional quality, and maintains a higher edible rate of the green bamboo shoots subjected to long-time cold storage. Besides, the cold storage and freshness preservation method for green bamboo shoots is simple to operate, safe and environmentally friendly, low in investment, and very practical.
Description
Technical field
The invention belongs to vegetable fresh-keeping processing technology field, relate to the preservation of a kind of vegetables (bamboo shoots), preservation method.
Background technology
Dendrocalamopsis oldhami (
dendrocalamopsis oldhami) belong to grass family (
gramineae) green bamboo genus (
dendrocalamopsis), its bamboo shoot likeness in form water chestnut, also known as ' bambusa lapidea shoots ', bamboo shoot meat is tender and crisp, fresh and sweet good to eat, is the good merchantable brand in edible bamboo shoots.Green bamboo is mainly distributed in the provinces and regions such as Zhejiang Province, China, Fujian and Taiwan, and going out bamboo shoot concentrates on the 6-9 month, is staggered with the bamboo shoot phase of thunder bamboo and mao bamboon, and the market advantage is unique.But Dendrocalamopsis oldhami tangent plane of gathering is large, very easily wood fibre, brown stain after adopting, rots and become bitter, under usual normal temperature, after 4-5 h, local flavor starts change, and freshness date is only 1 day; The lower freshness date of refrigeration about 7 days, significantly limit the selling market radius of fresh bamboo shoot, fully cannot realize the economic worth of product and seriously restrict the prodution and development of industry.
The fresh-keeping problem of Dendrocalamopsis oldhami has received publicity since the nineties in 20th century.But the preservation technique of current practical is actually rare.In recent years about Dendrocalamopsis oldhami post-harvest fresh-keeping technology has some research reports.Find to adopt sodium sulfite+konjaku glucomannan and chitosan coating, bad hematic acid+cysteine+citric acid+carboxymethyl cellulose film, and the method combined with low temperature or air conditioned storage can suppress bamboo shoot body respiration, reduce weight-loss ratio, suppress progression of fibrosis, slow down oxidizing brown stain and the microorganism invasion of bamboo shoot body, thus extend Dendrocalamopsis oldhami shelf-life.Utilize the fresh Dendrocalamopsis oldhami of microwave treatment, and in conjunction with bio-preservative 2 ~ 5 DEG C of refrigerations, the outward appearance of 12-15 days post processing bamboo shoot, smell, color and luster and mouthfeel and new fresh bamboo shoots do not have difference.Dendrocalamopsis oldhami preserves 8 days still good edible qualities of tool after microwave treatment under low temperature (2 ~ 3 DEG C), but microwave treatment Dendrocalamopsis oldhami easily occurs heating and boils symptom and change the outward appearance of bamboo shoot meat, smell, color and luster and mouthfeel, select suitable microwave intensity and action time of crucial importance.In addition, under 2 ~ 5 DEG C of holding conditions, being dipped in by Dendrocalamopsis oldhami base portion 1cm in the container containing nutrient solution and watering 1 time every 1 day, Dendrocalamopsis oldhami freshness date can extend about 30 days.Our research shows the storage period of oxalic acid in conjunction with controlled atmosphere process energy significant prolongation Dendrocalamopsis oldhami cryopreservation, keeps article of manufacture quality.Current, safely and effectively principle easier, economic and practical based on operation, carries on Dendrocalamopsis oldhami post-harvest fresh-keeping new method still very important.
Summary of the invention
Main purpose of the present invention is to provide a kind of preservation method of salicylic acid combined with ozone water soaking process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami.Concrete technical scheme is as follows:
A kind of salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method, its technological process is: Dendrocalamopsis oldhami of gathering → adopt rear gradient precooling → cleaning finishing → immersion treatment → cold wind to dry up → freezer constant temperature storage.
Further, Dendrocalamopsis oldhami is adopted at the fine 5:30-8:30 in morning of selection, avoids the temperature of bamboo shoots itself too high; Gather and be placed on 20 ± 1 DEG C, place 5 h in the environment of RH 85-90%, reach the effect of lost field heat, then proceeded to 15 ± 1 DEG C, RH 85-90% places 5 h, reaches gradient cooling.
Further, described cleaning finishing refers to: 15 ± 1 DEG C, under the environment of RH 85-90%, with 15 ± 1 DEG C of clean water horse bamboo shoot surface earth, cut inedible part with cutter, and bamboo shoots put drain away the water on the top of the shelf.
Further, described immersion treatment refers to: put into by the band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami that cleaning trims and soak 10 minutes containing 12mmol/L salicylic acid and 0.52mg/L ozone water solution;
Further, described cold wind dries up and refers to: the bamboo shoots pendulum after immersion treatment transferred on the top of the shelf 4 ± 1 DEG C, dry up with the cold wind of 4 ± 1 DEG C in the freezer of RH 85-90%.
Further, described freezer constant temperature storage refers to: the Dendrocalamopsis oldhami after being dried up by cold wind loads 1 polyethylene plastic bag by 45 bamboo shoot, and (0.02 ~ 0.04 mm is thick, 30cm × 25cm) in, bag open-ended, is then placed in 4 ± 1 DEG C, the support of the freezer of RH 85-90% is preserved.
The present invention effectively can prevent dehydration and the lignifying of Dendrocalamopsis oldhami, thus effectively extends the freshness date of Dendrocalamopsis oldhami, has ensured quality and the quality of product.
Accompanying drawing explanation
Fig. 1 is the variation diagram of process Dendrocalamopsis oldhami of the present invention at duration of storage weight-loss ratio;
Fig. 2 is that process Dendrocalamopsis oldhami of the present invention is at duration of storage content of lignin variation diagram;
Fig. 3 is the edible rate comparison diagram of process Dendrocalamopsis oldhami of the present invention after 20 days storage periods.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
The cold-storage and fresh-keeping method of salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami of the present invention, comprises the steps:
1. the gathering of Dendrocalamopsis oldhami
Select the 5:30-8:30 in morning of fine day to adopt bamboo shoot, choose just dew soil without disease and pest, the tender tips of bamboo shoot without dark green bamboo shoots, bamboo shoot body without deformity, not damaged, the bamboo shoot that fresh children is tender.Select size 350
the Dendrocalamopsis oldhami of 5g, bamboo shoot are long and base footpath is basically identical.
2. adopt rear gradient precooling
The bamboo shoots adopted are positioned over and are placed in 20 ± 1 DEG C, the environment of RH 85-90% places 5 h, reaches the effect of lost field heat, then proceeded to 15 ± 1 DEG C, RH 85-90% places 5 h, reach gradient cooling, ensure the fresh-keeping effect of Dendrocalamopsis oldhami.
3. the cleaning trimming of Dendrocalamopsis oldhami
15 ± 1 DEG C, under RH 85-90% environment, wash the earth on Dendrocalamopsis oldhami surface with 15 ± 1 DEG C of clear water, cut inedible part with cutter, emphasize that Dendrocalamopsis oldhami tangent plane is smooth, and bamboo shoots put drain away the water on the top of the shelf;
4. Dendrocalamopsis oldhami immersion treatment and dry up surface moisture
Cleaning is trimmed bamboo shoot and be divided into 4 groups, often organize each 90 Dendrocalamopsis oldhamis, put into clear water (contrast), 2 mmol/L salicylic acids, 2mg/L Ozone Water respectively, soak 10 minutes containing the solution of 2 mmol/L salicylic acids and 2mg/L ozone.Bamboo shoots pendulum after soaking 4 groups respectively again transfers to 4 ± 1 DEG C on the top of the shelf, dries up with the cold wind of 4 ± 1 DEG C in the freezer of RH 85-90%.
5. freezer constant temperature storage Dendrocalamopsis oldhami
Every 45 of the 4 groups of Dendrocalamopsis oldhamis dried up by cold wind respectively load 30cm × 25cm, and in the polyethylene plastic bag that 0.04 mm is thick, bag open-ended, be put in 4 ± 1 DEG C, support in the freezer of RH 85-90% is preserved, Storage Format is that frame is hidden.
6. Dendrocalamopsis oldhami storage fresh-keeping effect
As Fig. 1,2,3, shown in table 1, weight-loss ratio, content of lignin, Soluble adhesion molecule, edible rate are the indexs evaluating fresh bamboo shoots preservation effect and edible quality.Adopt the process of salicylic acid combined with ozone to have inhibition significantly for Dendrocalamopsis oldhami weight-loss ratio and lignifying, maintain bamboo shoots Dendrocalamopsis oldhami simultaneously and there is higher Soluble adhesion molecule.When Dendrocalamopsis oldhami refrigerates 20 days, weight-loss ratio reduces about 5% than process (contrast) of soaking separately, and edible rate improves about 22%, and fresh-keeping effect is remarkable.
The change (%) of the lower Soluble adhesion molecule of Dendrocalamopsis oldhami 4 DEG C storage after table 1 different disposal.
Claims (6)
1. a salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method, its technological process is: Dendrocalamopsis oldhami of gathering → adopt rear gradient precooling → cleaning finishing → immersion treatment → cold wind to dry up → freezer constant temperature storage.
2. salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method as claimed in claim 1, is characterized in that: Dendrocalamopsis oldhami is gathered at the fine 5:30-8:30 in morning of selection, avoids the temperature of bamboo shoots itself too high; Gather and be placed on 20 ± 1 DEG C, place 5 h in the environment of RH 85-90%, reach the effect of lost field heat, then proceeded to 15 ± 1 DEG C, RH 85-90% places 5 h, reaches gradient cooling.
3. salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method as claimed in claim 1, it is characterized in that: described cleaning finishing refers to: 15 ± 1 DEG C, under the environment of RH 85-90%, with 15 ± 1 DEG C of clean water horse bamboo shoot surface earth, cut inedible part with cutter, and bamboo shoots are put drain away the water on the top of the shelf.
4. salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method as claimed in claim 1, is characterized in that: described immersion treatment refers to: put into soak cleaning the band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami trimmed 10 minutes containing the salicylic acid of 1 2mmol/L and 0.5 2mg/L ozone water solution.
5. salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method as claimed in claim 1, is characterized in that: described cold wind dries up and refers to: the bamboo shoots pendulum after immersion treatment transferred on the top of the shelf 4 ± 1 DEG C, dry up with the cold wind of 4 ± 1 DEG C in the freezer of RH 85-90%.
6. salicylic acid combined with ozone process band bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami cold-storage and fresh-keeping method as claimed in claim 1, it is characterized in that: described freezer constant temperature storage refers to: the Dendrocalamopsis oldhami after being dried up by cold wind loads 1 polyethylene plastic bag by 45 bamboo shoot, and (0.02 ~ 0.04 mm is thick, 30cm × 25cm) in, bag open-ended, is then placed in 4 ± 1 DEG C, the support of the freezer of RH 85-90% is preserved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186834.0A CN104886229B (en) | 2015-04-20 | 2015-04-20 | A kind of cold-storage and fresh-keeping method of the salicylic acid combination ozone treatment with bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami |
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| CN201510186834.0A CN104886229B (en) | 2015-04-20 | 2015-04-20 | A kind of cold-storage and fresh-keeping method of the salicylic acid combination ozone treatment with bamboo shoot sheaths of bamboo shoots Dendrocalamopsis oldhami |
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| CN104886229A true CN104886229A (en) | 2015-09-09 |
| CN104886229B CN104886229B (en) | 2018-07-10 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105638864A (en) * | 2015-12-31 | 2016-06-08 | 浙江农业商贸职业学院 | Preservation method of phyllostachys heterocycla shoots with shells through combination of Chinese liquor treatment and low-temperature treatment |
| CN106942357A (en) * | 2017-05-10 | 2017-07-14 | 盐城工学院 | A kind of processing method of eggplant and raising eggplant fresh-keeping effect |
| CN107156282A (en) * | 2017-05-10 | 2017-09-15 | 盐城工学院 | A kind of eggplant and the processing method for improving eggplant cold resistance |
| CN107343529A (en) * | 2017-07-11 | 2017-11-14 | 贵州省苑博生态农业开发有限公司 | A kind of Kiwi berry cold preserving method and preservation method |
| CN108157491A (en) * | 2018-01-31 | 2018-06-15 | 浙江省亚热带作物研究所 | A kind of green bamboo keeping method for fresh bamboo shoot |
| CN109006984A (en) * | 2018-08-08 | 2018-12-18 | 屏山县菜多多食品有限公司 | A kind of selenium-rich bamboo shoots food-processing method |
| CN111053108A (en) * | 2019-10-30 | 2020-04-24 | 国家林业和草原局竹子研究开发中心 | Bamboo shoot preservation method for inhibiting damage of postharvest active oxygen |
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Patent Citations (5)
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| CN1726789A (en) * | 2005-07-21 | 2006-02-01 | 浙江大学 | Composite antistaling agent for restraining lignification of bamboo shoot, and method of use |
| CN101390532A (en) * | 2008-08-07 | 2009-03-25 | 赵逸平 | Production method of quick-frozen bamboo shoot |
| CN102415440A (en) * | 2011-12-13 | 2012-04-18 | 西南大学 | Bamboo shoot preservative and application thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105638864A (en) * | 2015-12-31 | 2016-06-08 | 浙江农业商贸职业学院 | Preservation method of phyllostachys heterocycla shoots with shells through combination of Chinese liquor treatment and low-temperature treatment |
| CN106942357A (en) * | 2017-05-10 | 2017-07-14 | 盐城工学院 | A kind of processing method of eggplant and raising eggplant fresh-keeping effect |
| CN107156282A (en) * | 2017-05-10 | 2017-09-15 | 盐城工学院 | A kind of eggplant and the processing method for improving eggplant cold resistance |
| CN107343529A (en) * | 2017-07-11 | 2017-11-14 | 贵州省苑博生态农业开发有限公司 | A kind of Kiwi berry cold preserving method and preservation method |
| CN108157491A (en) * | 2018-01-31 | 2018-06-15 | 浙江省亚热带作物研究所 | A kind of green bamboo keeping method for fresh bamboo shoot |
| CN109006984A (en) * | 2018-08-08 | 2018-12-18 | 屏山县菜多多食品有限公司 | A kind of selenium-rich bamboo shoots food-processing method |
| CN111053108A (en) * | 2019-10-30 | 2020-04-24 | 国家林业和草原局竹子研究开发中心 | Bamboo shoot preservation method for inhibiting damage of postharvest active oxygen |
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| CN104886229B (en) | 2018-07-10 |
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Inventor after: Zheng Xiaolin Inventor after: Zhao Yuying Inventor after: Yang Ying Inventor after: Bai Ruihua Inventor after: Li Kaibin Inventor before: Zheng Xiaolin Inventor before: Zhao Yuying Inventor before: Yang Ying Inventor before: Bai Ruihua |
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Effective date of registration: 20160512 Address after: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park is 18 street. Applicant after: Zhejiang Gongshang University Applicant after: Pingyang County Kai bin Agricultural Products Co., Ltd. Address before: Hangzhou City, Zhejiang province 310018 Xiasha Higher Education Park is 18 street. Applicant before: Zhejiang Gongshang University |
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