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Preservation processing method of rice

A processing method and rice technology, which are applied in the fields of edible seed preservation, food preservation, and heat preservation of seeds, etc., can solve the problems of direct damage to microorganisms and pests, unfavorable long-term storage of rice, accelerated metabolism of nutrients, etc., and achieve strong free radical scavenging. Ability, improve affinity and binding force, improve the effect of cross-linking

Pending Publication Date: 2020-09-11
蚌埠市江淮米业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the rice is milled into rice, the endosperm is directly exposed to the outside, which not only becomes more sensitive to external temperature, humidity, oxygen and other conditions, but also leads to accelerated metabolism of nutrients, fat oxidation and decomposition, increased acidity, and faster aging deterioration , and is susceptible to direct damage from microorganisms and pests, and is prone to mildew and insects
These factors lead to poor storage stability of rice, short shelf life, and strict storage conditions, which are not conducive to long-term storage of rice.

Method used

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  • Preservation processing method of rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A fresh-keeping processing method for rice, comprising the following steps:

[0022] S1. Dry the husked and peeled rice until the water content is 10%, and then perform the first ultraviolet irradiation treatment, the irradiation wavelength is 230nm, and the irradiation intensity is 90W / m 2 , the irradiation time is 20min, and the pretreated rice is obtained;

[0023] S2, first adding chitosan, hydrolyzed collagen and fructooligosaccharides into the acetic acid solution with a mass fraction of 0.5% dissolves completely, then adopts a micro-jet homogenizer to carry out dynamic high-pressure micro-jet treatment under the condition of 100MPa, and the number of treatments is The number of times is 3 times to obtain a composite preservation solution, wherein the massfraction of chitosan is 0.5%, the massfraction of hydrolyzed collagen is 1%, and the massfraction of fructooligosaccharide is 0.5%;

[0024] S3. Spray the composite fresh-keeping solution evenly into the pretrea...

Embodiment 2

[0027] A fresh-keeping processing method for rice, comprising the following steps:

[0028] S1. Dry the husked and peeled rice until the water content is 13.5%, and then perform the first ultraviolet irradiation treatment, the irradiation wavelength is 240nm, and the irradiation intensity is 100W / m 2 , the irradiation time is 25min, and the pretreated rice is obtained;

[0029] S2, first adding chitosan, hydrolyzed collagen and fructooligosaccharides into the acetic acid solution with a mass fraction of 1% dissolves completely, then adopts a micro-jet homogenizer to carry out dynamic high-pressure micro-jet treatment under the condition of 120MPa, and the number of treatments is The number of times is 5 times to obtain a composite preservation solution, wherein the massfraction of chitosan is 0.9%, the massfraction of hydrolyzed collagen is 1.5%, and the massfraction of fructooligosaccharide is 0.6%;

[0030] S3. Spray the composite preservative solution evenly into the pretr...

Embodiment 3

[0033] A fresh-keeping processing method for rice, comprising the following steps:

[0034] S1. Dry the husked and peeled rice until the water content is 15%, and then perform the first ultraviolet irradiation treatment, the irradiation wavelength is 260nm, and the irradiation intensity is 120W / m 2 , the irradiation time is 30min, and the pretreated rice is obtained;

[0035] S2, first adding chitosan, hydrolyzed collagen and fructooligosaccharides into the acetic acid solution with a mass fraction of 2% dissolves completely, then adopts a micro-jet homogenizer to carry out dynamic high-pressure micro-jet treatment under the condition of 140MPa, and the number of treatments is The number of times is 6 times to obtain a composite preservation solution, wherein the massfraction of chitosan is 1%, the massfraction of hydrolyzed collagen is 2%, and the massfraction of fructooligosaccharide is 1%;

[0036] S3. Spray the composite preservative solution evenly into the pretreated ri...

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Abstract

The invention discloses a preservation processing method of rice. The method comprises the following steps: S1, carrying out primary ultraviolet irradiation treatment on the husked rice to obtain pretreated rice; S2, adding chitosan, hydrolyzed collagen and fructooligosaccharide to an acetic acid solution to be dissolved completely, and then performing dynamic high-pressure micro-jet treatment bya micro-jet homogenizer to obtain a composite preservation solution; S3, uniformly spraying the composite preservation solution into the pretreated rice, performing drying at low temperature, and performing microwave treatment at 300-400 W for 1-3 min; S4, packaging the rice treated in step S3 and performing secondary ultraviolet irradiation treatment. The method can effectively improve storage stability of the rice and prolong the storage shelf life of the rice.

Description

technical field [0001] The invention relates to the technical field of rice processing, in particular to a fresh-keeping processing method for rice. Background technique [0002] Rice is one of the indispensable staple foods in people's daily life. It is rich in carbohydrates and protein and other nutrients needed by the human body. After the rice is milled into rice, the endosperm is directly exposed to the outside, which not only becomes more sensitive to external temperature, humidity, oxygen and other conditions, but also leads to accelerated metabolism of nutrients, fat oxidation and decomposition, increased acidity, and faster aging deterioration , and is susceptible to direct damage from microorganisms and pests, and is prone to mildew and insects. These factors lead to poor storage stability of rice, short shelf life, and strict storage conditions, which are not conducive to long-term storage of rice. Contents of the invention [0003] Based on the technical prob...

Claims

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Application Information

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IPC IPC(8): A23B9/04A23B9/06A23B9/26A23B9/30
CPCA23B9/04A23B9/06A23B9/26A23B9/30
Inventor 宋代江方厚凯
Owner 蚌埠市江淮米业有限公司
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