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Antiseptic preservation method for dried persimmon

A persimmon and preservative liquid technology, which is applied in food preservation, fruit and vegetable preservation, and fruit/vegetable preservation through dehydration, etc. It can solve the problems of dry and hard texture, sticky soft, single, etc., and achieve the effect of soft texture and extended shelf life

Inactive Publication Date: 2010-01-06
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, during the preservation process, deterioration phenomena such as astringency, mildew, browning, defrosting, rancidity, insufficient persimmon frost formation, excessive microorganisms, insects, dry and hard texture or sticky soft texture often occur, which greatly shortens the shelf life of persimmons; Simultaneously, these technologies are relatively single, and lack some comprehensive and feasible methods for prolonging the shelf life of dried persimmons, so as to meet the purpose of ensuring the good quality of dried dried persimmons and prolonging their shelf life.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: raw material selection: select the dried persimmon with the moisture content of 23%-28% through natural drying or artificial drying method, and its sensory and physical and chemical requirements are the inherent color and luster of dried persimmon, white and clear frost color ; Delicate taste, sweet and delicious, no peculiar smell, no astringency; strong persimmon flavor, soft texture, thick persimmon frost, uniform distribution, neat cake body, no mildew, no moth-eaten persimmons; Ethylparaben and propylparaben are dissolved in ethanol solution, and natamycin is dissolved in water to prepare a mixed preservative solution. The mass concentration of ethylparaben in the mixed preservative solution is 0.003%, propylparaben The mass concentration of ester is 0.06%, the mass concentration of natamycin is 0.01%; Spray antiseptic solution: put the selected raw persimmons on the operating table sterilized in advance, there is a certain distance between each persim...

Embodiment 2

[0011] Embodiment 2: selection of raw materials: select persimmons with a moisture content of 23%-28% through natural drying or artificial drying; preparation of antiseptic solution: dissolve ethylparaben and propylparaben in Ethanol solution, dissolving natamycin in water, and preparing a mixed antiseptic solution, the mass concentration of ethylparaben in the mixed antiseptic solution is 0.005%, the mass concentration of propylparaben is 0.08%, and the mass concentration of natamycin The mass concentration is 0.02%; Spray antiseptic solution: put the selected raw persimmons on a pre-sterilized operating table, put the antiseptic solution in a clean watering can, and then spray the antiseptic solution evenly on the surface of each persimmon After drying naturally: Packaging and storage: The dried dried persimmons are packed in high-density polyethylene plastic heat-sealed packaging, and there is a certain gap between each dried persimmon, which can be placed in a single layer....

Embodiment 3

[0012] Embodiment 3: raw material selection: select the dried persimmon with a moisture content of 23%-28% through natural drying or artificial drying; preparation of antiseptic solution: dissolve ethylparaben and propylparaben in Ethanol solution, dissolving natamycin in water, and preparing a mixed antiseptic solution, the mass concentration of ethylparaben in the mixed antiseptic solution is 0.008%, the mass concentration of propylparaben is 0.03%, and the mass concentration of natamycin The mass concentration is 0.03%; Spray antiseptic solution: put the selected raw persimmons on a pre-sterilized operating table, put the antiseptic solution in a clean watering can, and then spray the antiseptic solution evenly on the surface of each persimmon After drying naturally: Packaging and storage: The dried dried persimmons are packed in high-density polyethylene plastic heat-sealed packaging, and there is a certain gap between each dried persimmon, which can be placed in a single l...

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PUM

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Abstract

The invention discloses a corrosion preventing and storing method of a dried persimmon, which adopts the dried persimmon with water quality content of 23 to 28 percent. The invention configures a blend corrosion liquid by ethyl hydroxy benzoate, nipalgin propyl ester and Natamycin. The corrosion preventing liquid is evenly sprayed onto the surface of each dried persimmon and then naturally air-dried. The air-dried persimmon is packed by adopting hot moulding seal of high density polyethylene. A certain distance is kept between each two dried persimmon which is positioned in single layer. The invention applies the novel corrosion preventing agent and the organic corrosion preventing agent to the storage of the dried persimmon, and thus obtaining the dried persimmon with bright and clean powder and soft texture, and the quality guarantee period is effectively prolonged. The quality guarantee period of the dried persimmon under indoor temperature and four-degree temperature is respectively nine months and twelve months. The low temperature storage and sealed package are combined together, and the quality guarantee period of the dried persimmon is effectively prolonged.

Description

technical field [0001] The invention belongs to the technical field of production and processing of agricultural by-products, and in particular relates to a method for antiseptic preservation of persimmons. Background technique [0002] my country is the country with the highest persimmon output in the world, and persimmon is one of the main products of persimmon deep processing. The traditional persimmons have a long production cycle, poor hygienic quality and short shelf life, which limit the export and domestic sales of persimmons. At present, the shelf life of persimmons is mainly extended by the following technologies: on the one hand, corresponding control technologies are adopted in the production stage of persimmons, such as the use of fumigated sulfur to reduce the initial microorganisms of persimmons and kill insect eggs; deastringency of persimmons, prevention of astringency of persimmons, prevention of browning of persimmons, control of reasonable moisture conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23B7/00A23B7/02A23B7/154A23B7/16
Inventor 陈合王勇
Owner SHAANXI UNIV OF SCI & TECH