Application of 2-(4-methoxyphenoxy) propionic acid and antiseptic preservative agent for preservation of citrus after harvest

The technology of methoxyphenoxy and antistaling agent is applied in the field of antistaling agent, and achieves the effects of high efficiency antiseptic and antistaling, simple and easy processing method, and excellent anticorrosion and antistaling effect.

Inactive Publication Date: 2016-07-20
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2,4-D delays the formation of the fruit pedicle detachment layer by inhibiting the metabolic activity of the fruit, so that the citrus fruit pedicle is fresh and does not fall off, thereby preventing the pathogen from infecting the fruit and achieving the purpose of prolonging the storage period of citrus, but the presence of 2,4-D Biological safety hazards such as carcinogenesis and teratogenicity, especially dioxins are produced during the production of 2,4-D, which are highly carcinogenic

Method used

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  • Application of 2-(4-methoxyphenoxy) propionic acid and antiseptic preservative agent for preservation of citrus after harvest
  • Application of 2-(4-methoxyphenoxy) propionic acid and antiseptic preservative agent for preservation of citrus after harvest
  • Application of 2-(4-methoxyphenoxy) propionic acid and antiseptic preservative agent for preservation of citrus after harvest

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] 1) Solution preparation: Weigh 2.0g and 0.2g of MPP sodium salt solid powder into 5L tap water respectively to prepare 400ppmMPP and 40ppmMPP sodium salt solution; weigh 1.8g of 2,4-D solid powder, dissolve in water and use NaOH solution Adjust the pH to neutral, dilute to 5L with tap water, and prepare a 400ppm 2,4-D solution.

[0050] 2) Experimental treatment: select Wenzhou satsuma, soak the citrus fruits in the above three solutions and tap water for 3 minutes, dry them naturally, bag the fruits, store them at room temperature, and check the antiseptic and freshness of citrus regularly.

[0051] 3) Experimental results, the obtained experimental results are shown in Table 1.

[0052] Table 1 The experimental results of MPP sodium salt on postharvest storage of Wenzhou mandarin citrus fruits

[0053]

[0054] The experimental results showed that the antiseptic and fresh-keeping effect of the MPP sodium salt group and the 2,4-D group was better than that of the t...

Embodiment 2

[0056] 1) Solution preparation: Weigh 0.5g MPP sodium salt solid powder into 5L tap water to prepare 100ppm MPP sodium salt solution; weigh 5g chitosan and 0.5g MPP sodium salt solid powder into 5L tap water to prepare 100ppm MPP sodium salt Mix solution with 0.1% chitosan; weigh 0.45g 2,4-D solid powder, dissolve in water, adjust pH to neutral with NaOH solution, dilute to 5L with tap water, and prepare 100ppm 2,4-D solution.

[0057] 2) Experimental treatment: choose Shatangju, soak the citrus fruits in the above three solutions and tap water for 3 minutes, dry them naturally, bag the fruits, store them at room temperature, and check the antiseptic and freshness of citrus regularly.

[0058] 3) Experimental results, the obtained experimental results are shown in Table 2.

[0059] Table 2 The experimental results of MPP sodium salt on postharvest storage of sugar mandarin fruit

[0060]

[0061] The experimental results showed that the preservation effect of MPP sodium sa...

Embodiment 3

[0063] 1) Solution preparation: Weigh 0.5g MPP sodium salt solid powder into 5L tap water to prepare 100ppm MPP sodium salt solution; weigh 5g chitosan and 0.5g MPP sodium salt solid powder into 5L tap water to prepare 100ppm MPP sodium salt +0.1% chitosan mixed solution; weigh 0.45g 2,4-D solid powder, dissolve in water, adjust pH to neutral with NaOH solution, dilute to 5L with tap water, and prepare 100ppm 2,4-D solution.

[0064] 2) Experimental treatment: choose emperor mandarin oranges, soak the citrus fruits in the above three solutions and tap water for 3 minutes, dry them naturally, bag the fruits, store them at room temperature, and check the antiseptic and freshness of citrus regularly.

[0065] 3) Experimental results, the obtained experimental results are shown in Table 3.

[0066] Table 3 MPP sodium salt on the postharvest storage antiseptic preservation experiment results of emperor tangerine

[0067]

[0068] The experimental results showed that the preserv...

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Abstract

The invention discloses application of 2-(4-methoxyphenoxy) propionic acid and an antiseptic preservative agent for preservation of citrus after harvest. The preservative agent comprises 2-(4-methoxyphenoxy) propionate and auxiliary materials as effective ingredients. The effective ingredients of the preservative agent contain 2-(4-methoxyphenoxy) propanoic acid (MPP), and MPP is a natural source food additive of a GRAS level. The preservative agent effectively substitutes 2,4-D, and the adverse effects of 2,4-D serving as a preservative agent are eliminated. The preservative agent disclosed by the invention has an obvious preservative effect and is green and safe, and a processing method is simple and easy. When the preservative agent is used for antisepsis and preservation of fruits, the aims of antisepsis and preservation can be achieved by applying the additive with different concentrations according to the requirements of practical situations.

Description

technical field [0001] The invention relates to a preservative, in particular to an application of 2-(4-methoxyphenoxy)propionic acid and an antistaling and preservative for citrus post-harvest storage. The preservative is green and pollution-free. Background technique [0002] 2,4-dichlorophenoxyacetic acid (2,4-D) is usually used in postharvest preservation of citrus. 2,4-D delays the formation of the fruit pedicle detachment layer by inhibiting the metabolic activity of the fruit, so that the citrus fruit pedicle is fresh and does not fall off, thereby preventing the pathogen from infecting the fruit and achieving the purpose of prolonging the storage period of citrus, but the presence of 2,4-D Biological safety hazards such as carcinogenesis and teratogenicity, especially dioxins are produced during the production of 2,4-D, which are highly carcinogenic. The European Union has now clearly restricted its use as a fruit preservative .,Navarro,P.,Salvador,A.,2008a.Respons...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/154
Inventor 江洪吴倩陈杭炜马济美孙林皓李子龙曾贞
Owner HUAZHONG AGRI UNIV
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