CN101099503A - Gold silk jujube quick-freezing and preserving method - Google Patents
Gold silk jujube quick-freezing and preserving method Download PDFInfo
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- CN101099503A CN101099503A CNA2007100153609A CN200710015360A CN101099503A CN 101099503 A CN101099503 A CN 101099503A CN A2007100153609 A CNA2007100153609 A CN A2007100153609A CN 200710015360 A CN200710015360 A CN 200710015360A CN 101099503 A CN101099503 A CN 101099503A
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Abstract
The present invention relates to a quick-freezing fresh-keeping method for Chinese date fruit. Said method includes the following steps: (1), selecting Chinese date fruits, the redness of single Chinese date fruit can be up to above 95%; (2), cleaning and disinfecting: removing pesticide residue from surface of every Chinese date fruit; (3), quick-freezing: freezing temperature is -18deg.C- -40deg.C, freezing time is 6-48h in the freezing room; or quick-freezing for 5-50min by using quick-freezing machine; and (4), cold storage: its storage temperature is -6deg.C- -24deg.C in cold storage room.
Description
Technical field
The present invention relates to a kind of quick-freeze fresh-keeping method of fresh fruit, especially a kind of quick-freeze fresh-keeping method of golden jujube.
Background technology
Present prior art, golden jujube is a kind of having won fame both at home and abroad, and eats fruit raw, is a kind of a kind of fruit of producing in specific zone, and it is short to eat the phase raw, and the deep processing phase is short.Adopt general cold preserving method, since the respiration of itself, nutrient loss; Profile variation, fold appears in the surface, and mouthfeel is poor.Measure through relevant department: zinc: 3.4mg/kg, iron: 6.7mg/kg, to support one's family be C:210-280mg/100g, calcium: 22.6 mg/100g, total reducing sugar: 28.75%.Existing fresh-keeping storage method, storage life is short, and nutrient loss is many, can not effectively prolong the deep processing phase and eat the phase raw.
Summary of the invention
The objective of the invention is: a kind of quick-freeze fresh-keeping method of golden jujube is provided, and it can not only prolong the golden jujube fruit effectively and eat phase and deep processing phase raw, and can reduce nutrient loss, keeps original profile and nutrition substantially.
The present invention is achieved in that a kind of quick-freeze fresh-keeping method of golden jujube, may further comprise the steps:
(1) select for use nothing slurry decayed fruit, flawless, no mist to copy the jujube fruit of fruit, the red degree 95% of single fruit;
(2) cleaning and sterilizing is removed residues of pesticides, the dirt on jujube fruit surface;
(3) quick freezing temperature-18 ℃ in the quick-frozen freezer～-40 ℃, cooling time 6～48 hours; Or instant freezer quick-frozen 5～50 minutes;
(4) refrigeration storage temperature-6 ℃～-24 ℃ in freezer.
The quick-freeze fresh-keeping method of described a kind of golden jujube, quick freezing temperature are-24 ℃～-35 ℃, 4～24 hours time.
After in step (3) or step (4), adopting plastic bag vacuum packing machine packing or sealing machine to pack naturally, carry out quick-frozen or refrigeration.
The quick-freeze fresh-keeping method of a kind of golden jujube of the present invention, the one, prolonged the phase of eating raw, the deep processing phase of golden jujube, freshness-retained 10～12 months; The 2nd, suppressed the respiration of golden jujube, reduce nutrient loss, kept original profile of golden jujube and nutrition preferably; The 3rd, owing in storage, do not need any chemical preservative and medicine, keep original local flavor of golden jujube and mouthfeel.
The specific embodiment
Embodiment 1
A kind of quick-freeze fresh-keeping method of golden jujube may further comprise the steps:
(1) select for use nothing slurry decayed fruit, flawless, no mist to copy the jujube fruit of fruit, the red degree 95% of single fruit;
(2) to select concentration for use be the liquor natrii hypochloritis of 50PPM to cleaning and sterilizing, really uses 1 kilogram according to every kilogram of jujube, removes residues of pesticides, the dirt on jujube fruit surface; Jujube really immersed in the clear water clean; Air-dry.
(3) quick freezing temperature-18 ℃ temperature, quick-frozen time 48 hours in the quick-frozen freezer;
(4) refrigeration storage temperature-6 ℃ in freezer.
Embodiment 2
Step (3) quick freezing temperature-40 ℃, 6 hours quick-frozen time; Step (4) storage temperature-18 ℃.
Embodiment 3
Step (3) quick freezing temperature-24 ℃, 8 hours quick-frozen time; Step (4) storage temperature-12 ℃.
Embodiment 4
Step (3) quick freezing temperature-35 ℃, 6 hours quick-frozen time;
Step (4) storage temperature-18 ℃.
Embodiment 5
Instant freezer is selected in step (3) quick-frozen for use, 5 minutes quick-frozen time.
Step (4) storage temperature-24 ℃.
Embodiment 6
Step (3) is selected the instant freezer quick-frozen for use, 50 minutes quick-frozen time.
Step (4) storage temperature-12 ℃.
Embodiment 7
Step (3) is selected the instant freezer quick-frozen for use, 25 minutes quick-frozen time.
Step (4) storage temperature-6 ℃.
Adopt instant freezer, quick-frozen 20 minutes, 30 minutes and in 10-50 minute scope all can obtain good effect.
In the above-described embodiments, can also in step (3), pack, pack for one bag by 50-4000g, and then carry out quick-frozen.
Can also be in step (4) in the foregoing description, after packing by one bag of 50-4000g, preserve.
Described packing adopts plastic bag vacuum packing packing or sealing machine to pack naturally.
Claims (6)
1, a kind of quick-freeze fresh-keeping method of golden jujube may further comprise the steps:
(1) select for use nothing slurry decayed fruit, flawless, no mist to copy the jujube fruit of fruit, the red degree 95% of single fruit;
(2) cleaning and sterilizing is removed residues of pesticides, the dirt on jujube fruit surface;
(3) in the quick-frozen freezer, quick freezing temperature-18 ℃～-40 ℃, cooling time 4～48 hours; Or instant freezer quick-frozen 5～50 minutes;
(4) in the cold storage, storage temperature-6 ℃～-24 ℃.
2, the quick-freeze fresh-keeping method of a kind of golden jujube according to claim 1 is characterized in that: quick freezing temperature is-24 ℃～-35 ℃, time 6-8 hour in the step (3).
3, the quick-freeze fresh-keeping method of a kind of golden jujube according to claim 1 is characterized in that: step (3) quick freezing temperature-24 ℃, 8 hours quick-frozen time; Storage temperature-12 ℃ in the step (4).
4, the quick-freeze fresh-keeping method of a kind of golden jujube according to claim 1 is characterized in that: step (3) quick freezing temperature-35 ℃, 6 hours quick-frozen time; Step (4) storage temperature-18 ℃.
5, according to the quick-freeze fresh-keeping method of claim 1,2,3 or 4 described a kind of golden jujubes, it is characterized in that: in step (3), after employing plastic bag vacuum packing machine packing or sealing machine are packed naturally, carry out quick-frozen again.
6, according to the quick-freeze fresh-keeping method of claim 1,2,3 or 4 described a kind of golden jujubes, it is characterized in that: in step (4), after employing plastic bag vacuum packing machine packing or sealing machine are packed naturally, carry out quick-frozen again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100153609A CN101099503A (en) | 2007-07-11 | 2007-07-11 | Gold silk jujube quick-freezing and preserving method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100153609A CN101099503A (en) | 2007-07-11 | 2007-07-11 | Gold silk jujube quick-freezing and preserving method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101099503A true CN101099503A (en) | 2008-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100153609A Pending CN101099503A (en) | 2007-07-11 | 2007-07-11 | Gold silk jujube quick-freezing and preserving method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812989A (en) * | 2012-08-12 | 2012-12-12 | 辣妹子食品股份有限公司 | Citrus quick-freezing fresh-keeping method |
| CN103202330A (en) * | 2013-05-07 | 2013-07-17 | 辛万森 | Living date, medlar and apricot fresh-keeping storage method in circulation of commodities |
| CN104886231A (en) * | 2015-06-05 | 2015-09-09 | 贵州红赤水集团有限公司 | Processing technology for litchi preservation |
| CN104957242A (en) * | 2015-06-05 | 2015-10-07 | 贵州红赤水集团有限公司 | Bamboo shoot preservation processing technology |
| CN105660825A (en) * | 2015-12-30 | 2016-06-15 | 中国农业科学院郑州果树研究所 | Worm-prevention fresh keeping method of no-clean red jujubes |
| CN107019031A (en) * | 2017-03-17 | 2017-08-08 | 赵春芝 | A kind of quick-freezing fresh-keeping method of sweet potato |
| CN107258890A (en) * | 2017-08-02 | 2017-10-20 | 山东省枣乡情农业科技有限公司 | A kind of processing technology of quick-frozen fresh dates |
-
2007
- 2007-07-11 CN CNA2007100153609A patent/CN101099503A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102812989A (en) * | 2012-08-12 | 2012-12-12 | 辣妹子食品股份有限公司 | Citrus quick-freezing fresh-keeping method |
| CN103202330A (en) * | 2013-05-07 | 2013-07-17 | 辛万森 | Living date, medlar and apricot fresh-keeping storage method in circulation of commodities |
| CN104886231A (en) * | 2015-06-05 | 2015-09-09 | 贵州红赤水集团有限公司 | Processing technology for litchi preservation |
| CN104957242A (en) * | 2015-06-05 | 2015-10-07 | 贵州红赤水集团有限公司 | Bamboo shoot preservation processing technology |
| CN105660825A (en) * | 2015-12-30 | 2016-06-15 | 中国农业科学院郑州果树研究所 | Worm-prevention fresh keeping method of no-clean red jujubes |
| CN107019031A (en) * | 2017-03-17 | 2017-08-08 | 赵春芝 | A kind of quick-freezing fresh-keeping method of sweet potato |
| CN107258890A (en) * | 2017-08-02 | 2017-10-20 | 山东省枣乡情农业科技有限公司 | A kind of processing technology of quick-frozen fresh dates |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080109 |