CN101491272A - Winter jujube biological preservative and treatment method thereof - Google Patents
Winter jujube biological preservative and treatment method thereof Download PDFInfo
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- CN101491272A CN101491272A CNA2008100521592A CN200810052159A CN101491272A CN 101491272 A CN101491272 A CN 101491272A CN A2008100521592 A CNA2008100521592 A CN A2008100521592A CN 200810052159 A CN200810052159 A CN 200810052159A CN 101491272 A CN101491272 A CN 101491272A
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- winter jujube
- natamycin
- acid
- antistaling agent
- bronsted lowry
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Abstract
The invention provides a liquid biological antistaling agent for winter jujube storage. The antistaling agent comprises the following compositions: A, biological bactericides natamycin and nisin; B, deionized water; C, an organic solvent which can be mixed with water; D, an acid and alkali neutralizing agent; E, a chelating agent; and F, an antioxidant. With the winter jujube biological antistaling agent and a fresh-keeping treatment method for the winter jujube, the main ingredient is a composition formed by the natamycin and the nisin with antibiotic activity, so the antistaling agent has the characteristics of non toxicity, small dosage, convenient use, good antisepsis effect, no influence on flavor of food and the like.
Description
Technical field
The invention belongs to the fresh-retaining preserving technology of fruit, specifically is the fresh-keeping treating method of Winter jujube biological preservative and winter jujube.
Background technology
The winter jujube is a kind in the northern Shandong winter jujube strain, is the rare late-maturing kind of eating raw of present performance optimal, and there are Wudi, Shandong, Zhanhua, Hui Shi and counties such as Huanghua, Hebei, salt glacier in its main production area.The thin meat of winter fructus corni is crisp, and sweet delicate fragrance is nutritious.Vitamin content is high especially, the nourishing of both can having allayed one's hunger of winter jujube, but dietotherapy again, medical.Quality descends rapidly but the winter jujube is adopted the back, is difficult to storage.
In recent years, the storage technique of winter jujube is studied.It has been generally acknowledged that the suitable refrigerated condition of winter jujube is: temperature is-1 ℃, and relative humidity is more than 90%, CO
2Concentration is less than 2%, and use punching polyethylene film packing.On this basis, many physico-chemical processes such as x radiation x, electromagnetic radiation, heat treatment, all once by test research, the method that has obtains certain effect, but is not obvious especially for reduced pressure treatment, ozone treatment etc.At present widely used remain chemical preservative as: Te Keduo, press down mould azoles, sporgon, iprodione etc. and be used in combination.The residual toxicity of chemical preservative in fruits and vegetables is potentially dangerous to human health, and its long-term use can cause the generation of drug resistance strain, thereby reduces prevention effect.Therefore, need antisepsis antistaling agent new, non-toxic efficient, progressively to replace or to reduce chemical bactericide in the use of adopting on the fruits and vegetables of back.
Natamycin, nisin etc. are to have gone through at present and at the microbial antibacterial anticorrisive agent of global extensive use.Natamycin can suppress the growth of saccharomycete and mould effectively.Nisin has antibacterial activity to many gram-positive bacterias.They are nontoxic because of it, consumption is few, and is easy to use, and favorable anti-corrosion effect does not influence characteristics such as flavours in food products and is widely used.
Summary of the invention
The liquid bio antistaling agent and the processing method thereof that the purpose of this invention is to provide a kind of winter jujube storage usefulness.
The liquid bio antistaling agent of winter jujube storage usefulness is combined by following composition or wherein several composition:
A biological bactericide natamycin and nisin; The B deionized water; C and water can carry out miscible organic solvent; D bronsted lowry acids and bases bronsted lowry nertralizer; The E chelating agent; The F antioxidant;
Energy and the miscible organic solvent of water are methyl alcohol, ethanol, propyl alcohol, butanols, formamide, dimethyl formamide, carrene, acetonitrile.Wherein ethanol, dimethyl formamide are preferred.
Acid in the bronsted lowry acids and bases bronsted lowry nertralizer is citric acid, hydrochloric acid, sulfuric acid, lactic acid; Alkali is NaOH, potassium hydroxide, ammoniacal liquor.
Chelating agent is one or more in citric acid, ethylenediamine tetra-acetic acid (EDTA) and salt thereof, calgon (SHMP), polyphosphate, the tartrate.Wherein one or more in citric acid and ethylenediamine tetra-acetic acid (EDTA) and the salt thereof are preferred.
Antioxidant is one or more in the tert-butyl group-4 BHA (BHA), riboflavin, vitamin C, vitamin E, the citric acid etc.
Natamycin aqueous solution compound method is as follows:
1. preparation contains the acidity or the alkaline solution of organic solvent on a small quantity, and to be adjusted to suitable pH value be 11～13.
2. according to required natamycin concentration, in above-mentioned solution, add an amount of natamycin, stir, be prepared into concentrate.
3. the nisin and the stirring and dissolving that add aequum in the nertralizer solution of acidity or acid cushioning liquid, to certain volume, the pH of adjusting final solution is 3～7 with the concentrate of this solution dilution natamycin.
4. add 0.2～2% antioxidant, chelating agent.
Advantage of the present invention
Adopt the fresh-keeping treating method of this Winter jujube biological preservative and winter jujube, have antibacterial activity because main component is the composition that natamycin, nisin form.Nontoxic, consumption is few, and is easy to use, favorable anti-corrosion effect does not influence characteristics such as flavours in food products.
The specific embodiment:
Example one: 120ml concentration is that 0.04mol/L concentration hydrogen aqueous solution of sodium oxide and 80ml ethanol mix, and with 5% NaOH the pH value is adjusted to 12.0 at last; 1.6g natamycin is dissolved in the above-mentioned solution, and vigorous stirring; Be about at 2L pH and add the 0.8g nisin in 3 the citric acid solution, and stirring and dissolving; Concentrate with this citric acid solution dilution natamycin adds the 0.8g disodium ethylene diamine tetraacetate again, and the pH that regulates whole solution is about 5.0, and is diluted to 4L with deionized water.
Antioxidant, the chelating agent of adding 1%.
Using method: after the selected and precooling of the winter jujube after adopting, immersing as stated above in the prepared preservative, soak half a minute, pull out and dry, adopt punching polyethylene film packing, is-1.5 ℃ in temperature, and relative humidity is more than 90%, CO
2Concentration is preserved less than 2% freezer.
Storage through 2 months, the storage effect of its effect and chemical preservative CT-date dedicated liquid antistaling agent is suitable.Good fruit rate can reach 94%.
Example two: in the above-mentioned example, regulating the pH value at first is 11～13.The pH of final regulator solution is 3～7.
Antioxidant, the chelating agent of adding 0.2～2%.
Example three:
In the above-mentioned example, energy and the miscible organic solvent ethanol of water can be used methyl alcohol, propyl alcohol, butanols, formamide, dimethyl formamide, carrene, acetonitrile to replace and replace, and wherein ethanol, dimethyl formamide are preferred.
In the above-mentioned example, the sour available citric acid in the bronsted lowry acids and bases bronsted lowry nertralizer, hydrochloric acid, sulfuric acid, lactic acid replace; Alkali is NaOH, potassium hydroxide, aqueous ammonia to replace.
Example four:
In the above-mentioned example, chelating agent citric acid wherein, one or more replacements in available ethylenediamine tetra-acetic acid (EDTA) and salt thereof, calgon (SHMP), polyphosphate, the tartrate.Wherein one or more in citric acid and ethylenediamine tetra-acetic acid (EDTA) and the salt thereof are preferred.
Example five:
In the above-mentioned example, wherein antioxidant is one or more in the tert-butyl group-4 BHA (BHA), riboflavin, vitamin C, vitamin E, the citric acid etc.
Claims (4)
1, a kind of liquid bio antistaling agent of winter jujube storage usefulness is characterized in that:
The liquid bio antistaling agent of winter jujube storage usefulness is combined by following composition or wherein several composition:
A biological bactericide natamycin and nisin; The B deionized water; C and water can carry out miscible organic solvent; D bronsted lowry acids and bases bronsted lowry nertralizer; The E chelating agent; The F antioxidant;
Wherein: energy and the miscible organic solvent of water are methyl alcohol, ethanol, propyl alcohol, butanols, formamide, dimethyl formamide, carrene, acetonitrile;
Acid in the bronsted lowry acids and bases bronsted lowry nertralizer is citric acid, hydrochloric acid, sulfuric acid, lactic acid; Alkali in the bronsted lowry acids and bases bronsted lowry nertralizer is NaOH, potassium hydroxide, ammoniacal liquor;
Chelating agent is one or more in citric acid, ethylenediamine tetra-acetic acid (EDTA) and salt thereof, calgon (SHMP), polyphosphate, the tartrate;
Antioxidant is one or more in the tert-butyl group-4 BHA (BHA), riboflavin, vitamin C, vitamin E, the citric acid etc.
2, the liquid bio antistaling agent of winter jujube storage usefulness according to claim 1 is characterized in that:
Wherein: energy and the miscible organic solvent of water are ethanol, dimethyl formamide.
3, the liquid bio antistaling agent of winter jujube storage usefulness according to claim 1, it is characterized in that: wherein: chelating agent is one or more in citric acid and ethylenediamine tetra-acetic acid (EDTA) and the salt thereof.
4, a kind of liquid bio antistaling agent processing method of winter jujube storage usefulness:
Natamycin aqueous solution compound method is as follows:
A, preparation contain the acidity or the alkaline solution of organic solvent on a small quantity, and to be adjusted to suitable pH value be 11～13
B, according to required natamycin concentration, in above-mentioned solution, add an amount of natamycin, stir, be prepared into concentrate;
C, add the nisin and the stirring and dissolving of aequum in the nertralizer solution of acidity or acid cushioning liquid, to certain volume, the pH of adjusting final solution is 3～7 with the concentrate of this solution dilution natamycin;
Antioxidant, the chelating agent of d, adding 0.2～2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100521592A CN101491272A (en) | 2008-01-25 | 2008-01-25 | Winter jujube biological preservative and treatment method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100521592A CN101491272A (en) | 2008-01-25 | 2008-01-25 | Winter jujube biological preservative and treatment method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101491272A true CN101491272A (en) | 2009-07-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100521592A Pending CN101491272A (en) | 2008-01-25 | 2008-01-25 | Winter jujube biological preservative and treatment method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796978A (en) * | 2010-03-30 | 2010-08-11 | 北华大学 | Storage and fresh-keeping method of fresh Chinese magnoliavine fruit |
| CN103651766A (en) * | 2013-12-19 | 2014-03-26 | 陕西师范大学 | Preservative specially used for fresh pomegranate fruit storage |
| CN105028622A (en) * | 2015-08-27 | 2015-11-11 | 太仓市永发农场专业合作社 | Composite preservative of jujubes |
| CN109757554A (en) * | 2019-01-23 | 2019-05-17 | 中国科学院华南植物园 | A kind of fresh-keeping of dong jujube agent and its preparation method and application |
| CN110074385A (en) * | 2019-05-21 | 2019-08-02 | 绥化市蓝源生物工程有限公司 | A kind of alkaloid dissolves biological solutions and its application of natamycin |
-
2008
- 2008-01-25 CN CNA2008100521592A patent/CN101491272A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101796978A (en) * | 2010-03-30 | 2010-08-11 | 北华大学 | Storage and fresh-keeping method of fresh Chinese magnoliavine fruit |
| CN103651766A (en) * | 2013-12-19 | 2014-03-26 | 陕西师范大学 | Preservative specially used for fresh pomegranate fruit storage |
| CN103651766B (en) * | 2013-12-19 | 2015-01-07 | 陕西师范大学 | Preservative specially used for fresh pomegranate fruit storage |
| CN105028622A (en) * | 2015-08-27 | 2015-11-11 | 太仓市永发农场专业合作社 | Composite preservative of jujubes |
| CN109757554A (en) * | 2019-01-23 | 2019-05-17 | 中国科学院华南植物园 | A kind of fresh-keeping of dong jujube agent and its preparation method and application |
| CN110074385A (en) * | 2019-05-21 | 2019-08-02 | 绥化市蓝源生物工程有限公司 | A kind of alkaloid dissolves biological solutions and its application of natamycin |
| CN110074385B (en) * | 2019-05-21 | 2022-05-31 | 绥化市蓝源生物工程有限公司 | Biological solvent for dissolving natamycin by alkaloid and application thereof |
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Open date: 20090729 |