CN1263386C - Long-acting antistaling agent for grape - Google Patents
Long-acting antistaling agent for grape Download PDFInfo
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- CN1263386C CN1263386C CN 01137211 CN01137211A CN1263386C CN 1263386 C CN1263386 C CN 1263386C CN 01137211 CN01137211 CN 01137211 CN 01137211 A CN01137211 A CN 01137211A CN 1263386 C CN1263386 C CN 1263386C
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- pyrosulfite
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- Storage Of Fruits Or Vegetables (AREA)
- Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
Abstract
The present invention relates to a long-acting refreshing agent which is characterized in that the long-acting refreshing agent for grapes comprises the following components according to the weight ratio: 80% to 95% of pyrosulfite, 5% to 20% of acid releasing type substances, 0 to 5% of water absorbent and 0 to 5% of alkaline substances. The present invention is prepared according to the following steps that the pyrosulfite, the acid releasing type substances, the water absorbent and the alkaline substances are prepared to granules, powder and tablets after uniformly mixed proportionally; grape refreshing products can be prepared by adopting paper as a carrier to satisfy the different requirements of the long-distance transport and the cold chain storage of grapes. The present invention has the characteristics of low cost, long release period, moderate medicine quantity and no damage, and is suitable for the long-distance transport of normal temperature and the long-term cold storage of low temperature. The present invention belongs to an economical and practical novel long-acting refreshing agent for grapes.
Description
The method for keeping grapes at home and abroad is cellaring; refrigerating; SO (SO)2Fumigating or with SO2Corrosion prevention of the generator; method for fumigating sec-butylamine and derivatives thereof[1]Wherein SO is used0Has ideal effect on grape corrosion prevention and fresh keeping[2]It is a commonly used preservative at present. Due to SO2The fumigation method produces a large amount of SO2The pollution is serious when the waste water is released into the atmosphere; grape preservative paper[3，4]Grape fresh-keeping bag[5]Is a general common SO2Generator to release SO2And (5) performing antiseptic and fresh-keeping treatment.
SO2Gas is an effective fungal inhibitor, and although it does not cure existing infestations, it kills spores and prevents the growth of mold on the grape surface, preventing new infestations from occurring. But higher concentration of SO2The gas can bleach the grape peel and enter the whole berry, so that the pulp generates unpleasant smell and causes phytotoxicity; while lower concentrations of SO2But not enough to prevent the growth of mold. Thus, controlling SO2The amount or rate of release of (a) has an important role in solving the above problems. The existing method adopts single-stage SO2The generator can release most of SO within one or two days for fresh-keeping2The gas is released quickly and in short time, SO that SO is generated when the early concentration is too high2Injury, later stage SO2The gas concentration is too low to be corrosion resistant. This approach is an improvement over refrigeration facilities, but does not solve the problem.
Pyrosulfite is commonlyused as SO2Gas releasing agents, but the currently used methods and corresponding products release only one SO2Gas, second SO2The gas cannot be released because the environment is alkaline; in addition, the release speed cannot be controlled, so that the fresh-keeping effect is difficult to ensure. The preservative can inhibit the rapid release of pyrosulfite in the early stage by adding a substance capable of being slowly converted into acidity, and can slowly generate an acidic environment to gradually release second SO from the pyrosulfite in the later stage2. The purpose of long-term release is achieved.
Reaction type
NH4HA is acid-releasing substance
The long-acting preservative provided by the invention is prepared by adding a small amount of alkaline substances and a certain substance capable of being slowly converted into acid, and greatly prolonging the SO content of preservative paper by improving the processes of slightly alkalifying and then acidity on the basis of the original formula and production method2Gas timing and release of SO2Total amount of gas, and controlling time and maintaining low concentration of SO2The gas can play a role in keeping the grapes fresh for a long time.
The present invention is described in detail below with reference to examples
Example 1
85% pyrosulfite, 12% acid releasing substance, 2% water absorbing agent and 1% alkaline substance by weight ratio, and controlling the humidity above 90% at 0-30 deg.C to release SO2The time is more than thirty days.
Example 2
The weight ratio of pyrosulfite 88%, acid-releasing substance 10%, water-absorbing agent 1%, and alkaline substance 1% at the temperature of 0-30 deg.CControlling humidity to above 90%, releasing SO2The time is more than thirty days.
Example 3
The weight ratio of the pyrosulfite to the acid releasing substance is 88 percent, and the weight ratio of the acid releasing substance to the alkaline substance is 1 percent. Controlling the humidity to be more than 90 percent at the temperature (0-30 ℃) to release SO2The time is more than thirty days.
Example 4
The weight ratio of the pyrosulfite to the acid releasing substance is 82 percent, the acid releasing substance is 12 percent, the water absorbing agent is 5 percent, and the alkaline substance is 1 percent. Controlling the humidity to be more than 90 percent at the temperature (0-30 ℃), and releasing SO2The time is more than thirty days.
Example 5
The weight ratio of pyrosulfite to acid releasing substance is 90%, the humidity is controlled to be above 90% at 0-30 deg.C, SO is released2The time is more than thirty days.
Example 6
85% pyrosulfite, 13% acid releasing matter and 2% water absorbing agent in certain weight proportion, and the SO releasing material is prepared through controlling humidity over 90% at 18-40 deg.c2The time is more than twenty-five days.
Example 7
The weight ratio of pyrosulfite 88%, acid-releasing substance 11.8%, and alkaline substance 0.2%, and the humidity is controlled at above 90% at 30-45 deg.C to release SO2The time is more than twenty days.
Example 8
85% pyrosulfite and 15% acid-releasing substance by weight, controlling the humidity above 90% at 18-40 deg.C, releasing SO2The time is more than twenty five.
Example 9
The weight ratio of pyrosulfite to acid releasing matter is 95% and the temperature is 18-40 deg.c, the humidity is controlled to over 90% to release SO2The time is more than twenty days.
The invention has the characteristics of low cost, long release period and moderate dosage, and is suitable for long-distance transportation at normal temperature and low-temperature long-term refrigeration. Is an economical and practical novel long-acting grape preservative.
Reference to the literature
1 Yang Shi Chao, Xuchun Zhong, etc., editions, fruit and vegetable storage, fresh-keeping and processing, China agricultural Press, 1997.
2Joseph W.Eckert and Joseph.Ogawa，The Chemical Control Of Postharvest Di deaSes：DeciduousFruit，Berries，Veget-ables and Root/Tuber Grops，Ann.Rev.Phytopathol.1998.26：433-69
3 xu ling, songxiang army, king gird, the effect of the grape preservative paper on the storage and transportation of fresh grapes in Xinjiang, fruit tree in China 1996 (3): 26-27, 29
4 Song dynasty, Wangjide, xu Ling, grape preservative paper, ZL94107061.1
5 Song dynasty army, Wangjide, grape fresh-keeping breathable bag, zl98219467.6
Claims (3)
1. The long-acting grape preservative is characterized by comprising the following components in parts by weight: 80-95% of pyrosulfite, 5-20% of acid-releasing substance, 0-5% of water absorbent and 0-5% of alkaline substance; wherein the acid releasing substance is inorganic acid ammonium, organic acid ammonium hydrogen, organic acid sodium hydrogen, organic acid potassium hydrogen and organic acid anhydride; the water absorbent is Ca or Mg chloride and sulfate; the alkaline substance is hydroxide or carbonate of Na and K; mixing the pyrosulfite with acid-releasing substance, water absorbent and alkaline substance.
2. The long-acting grape fresh-keeping agent according to claim 1, wherein the pyrosulfite is sodium pyrosulfite, and is mixed with an acid-releasing substance, a water-absorbing agent and an alkaline substance, and processed into powder, granules and tablets, and the powder is filled into a bag-shaped environment-friendly paper and directly sealed to prepare the bag-shaped environment-friendly paper.
3. The long-acting grape preservative according to claim 1, wherein the pyrosulfite is sodium pyrosulfite, and is uniformly mixed with an acid releasing substance, a water absorbing agent and an alkaline substance, coated on paper, and then is dried in the air to prepare the composite preservative paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01137211 CN1263386C (en) | 2001-10-22 | 2001-10-22 | Long-acting antistaling agent for grape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01137211 CN1263386C (en) | 2001-10-22 | 2001-10-22 | Long-acting antistaling agent for grape |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1413475A CN1413475A (en) | 2003-04-30 |
| CN1263386C true CN1263386C (en) | 2006-07-12 |
Family
ID=4674094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01137211 Expired - Fee Related CN1263386C (en) | 2001-10-22 | 2001-10-22 | Long-acting antistaling agent for grape |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1263386C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100409754C (en) * | 2004-12-15 | 2008-08-13 | 济南营养源食品科技有限公司 | Fresh keeping tablet for grape produced adopting full powder direct pelleting method |
| CN101627783B (en) * | 2007-11-23 | 2012-09-05 | 新疆大学 | Transportation type preservative paper for red grapes |
| CN104686647B (en) * | 2015-02-06 | 2018-04-03 | 盐城工学院 | A kind of grape fresh-keeping controlled atmosphere paper |
| CN105875813A (en) * | 2016-04-13 | 2016-08-24 | 广东省农业科学院果树研究所 | Preservative paper for longans |
| CN108739997A (en) * | 2018-06-14 | 2018-11-06 | 苏州大学张家港工业技术研究院 | A kind of absorption type fruit antistaling agent and preparation method thereof |
| CN108719450A (en) * | 2018-06-29 | 2018-11-02 | 山西省农业科学院农产品贮藏保鲜研究所 | A kind of green grape antistaling tablet and preparation method thereof precisely discharged based on storage period |
-
2001
- 2001-10-22 CN CN 01137211 patent/CN1263386C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1413475A (en) | 2003-04-30 |
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Granted publication date: 20060712 Termination date: 20111022 |