Preparation method and application of water-soluble lychee compound nano preservative

A preservative and water-soluble technology, which is applied in the field of preservative processing, can solve the problems of high cost, high toxicity of preservative, pesticide or sulfur dioxide residue, etc., and achieve the effect of low cost, simple equipment and easy to wash off

Inactive Publication Date: 2015-09-09
YULIN NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the high toxicity of existing antistaling agents, meet the requirements of fruit preservation in rainy and sunny days, solve the problems of high cost of existing preservation methods, pesticides or sulfur dioxide, etc. remain on the surface of fruits, etc. Method for preparing water-soluble lychee compound nano-preservative from perilla leaves, rosemary, etc.) tissue extracts and its application

Method used

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  • Preparation method and application of water-soluble lychee compound nano preservative

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Materials used in this embodiment Reagent: 300g of False Betel leaf, surfactant: the composition of 0.9g of didecyl dimethyl ammonium chloride and 0.6g of dodecyl dimethyl benzyl ammonium chloride, antioxidant : Sorbic acid 8g, prepare according to the following steps.

[0026] Step 1): False betel leaves: water = 300g: 3L mixed, mechanically crushed to form a slurry, sealed and soaked in the slurry for 24 hours, then suction filtered to obtain the filtrate and filter residue.

[0027] Step 2): Add 0.05% surfactant to the filtrate obtained in step 1), mix evenly and seal it.

[0028] Step 3): Soak the filter residue obtained in step 1) in alcohol, the ratio of filter residue (heap volume) to alcohol = 30ml: 90ml, seal and soak for 20 hours and then suction filter, add antioxidant to the leaching solution 66ml, antioxidant The concentration of the antioxidant is 12.1g / 100ml to obtain an antioxidant-alcohol extract solution.

[0029] Step 4): While stirring the solu...

Embodiment 2

[0031] Materials and reagents used in this example: perilla leaves 150g, rosemary leaves 150g, surfactant: polysiloxane quaternary ammonium salt (HM98) 3g, antioxidant: potassium sorbate 4g, prepared according to the following steps.

[0032] Step 1): perilla leaves, rosemary leaves: water = 300g: 1.5L mixed, mechanically crushed to form a slurry, sealed and soaked in the slurry for 20 hours, then suction filtered to obtain the filtrate and filter residue.

[0033] Step 2): Add 0.2% surfactant to the filtrate obtained in step 1), mix evenly and seal it.

[0034]Step 3): Soak the filter residue obtained in step 1) in alcohol, the ratio of filter residue (heap volume) to methanol = 30ml: 60ml, seal and soak for 24 hours, filter with suction, remove the filter residue, and recover methanol by rotary evaporation to obtain a brown paste Dissolve in 100ml alcohol and add antioxidant, the concentration of antioxidant is 6.0g / 100ml, to obtain antioxidant-alcohol extract solution.

[...

Embodiment 3

[0037] Materials and reagents used in this example: 300 g of False Betel (including stems and roots), surfactant: 5 g of polysiloxane quaternary ammonium salt (HM98), 5 g of dodecyl dimethyl benzyl ammonium chloride Antioxidant: sorbic acid 6g, prepared according to the following steps.

[0038] Step 1): False betel whole herb: water = 300g: 3L mixed, mechanically crushed to form a slurry, sealed and soaked in the slurry for 20 hours, then suction filtered to obtain the filtrate and filter residue.

[0039] Step 2): Add 0.33% surfactant to the filtrate obtained in step 1), mix evenly and seal it.

[0040] Step 3): Soak the filter residue obtained in step 1) in alcohol, the ratio of filter residue (heap volume) to alcohol = 30ml: 250ml, seal and soak for 24 hours and then suction filter, add antioxidant to the leaching solution 66ml, antioxidant The concentration of the antioxidant is 9.0g / 100ml to obtain an antioxidant-alcohol extract solution.

[0041] Step 4): While st...

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Abstract

The invention relates to a preparation method and an application of a water-soluble litchi compound nano preservative. The preparation method comprises the following steps: mechanically mashing caraway tissue and water to make pulp, sealing and soaking the pulp for 15-30 hours, subsequently performing suction filtration so as to obtain a filtrate and filter residues, adding 0.05-0.5% of surfactant into the filtrate, uniformly mixing, sealing up and standing, soaking the filter residues in alcohol or methanol, wherein the ratio of the filter residues (pile volume) to the alcohol is 30ml:(60-250ml), sealing and soaking for 15-30 hours, subsequently performing suction filtration, adding an antioxidant to make the concentration of the antioxidant be 6-12.3g / 100ml and obtain an antioxidant-alcohol extract solution, adding 60-250ml of the antioxidant-alcohol extract solution into the solution with the surfactant, so as to obtain the water-soluble litchi compound nano preservative. The preservative provided by the invention is used for preserving fruits such as litchi and after being picked up, and the fruits can be preserved for more than 31 days after being treated by using the preservative in a refrigerator or refrigeration house of 0-5 DEG C.

Description

technical field [0001] The invention belongs to the field of antistaling agent processing, and in particular relates to a method for preparing a water-soluble lychee compound nano-preservative by using an extract from the tissue of betel and its application. Background technique [0002] False betel (also known as false betel) is a plant of the genus Piper in the family Piperaceae, and its fruit is called Pibozi. Distributed in India, Vietnam, Indonesia, Philippines, Papua New Guinea, Malaysia, and Yunnan, Guizhou, Fujian, Tibet, Guangdong, Guangxi and other places in mainland China, it grows in tropical and subtropical regions, and often grows in forests and wetlands beside villages , in Vietnam, Laos has artificial cultivation. False betel is a perennial creeping herb, which has a fragrance when rubbed. The stem nodes are enlarged, and the adventitious roots grow. Leaves alternate, nearly membranous, with gland-sucking points, the lower leaves are broadly ovate or near...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/154
Inventor 聂国朝梁伟江吴艳华
Owner YULIN NORMAL UNIVERSITY
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