Method for prolonging storage period of germ-remaining rice

A technology for storage period and germination of rice, which is applied in the field of extending the storage period of germination rice, can solve the problems of high industrialization cost, difficulty in popularization, and easy wear and tear, and achieve the effects of prolonging storage time, overcoming heat resistance, and maintaining nutrition

Inactive Publication Date: 2019-10-01
ANHUI TIANLI GRAIN & OIL GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the vacuum packaging bag is closely attached to the rice grains, and the two ends of the rice grains withstand the packaging bag during handling and transportation, which is easy to wear and cause air leakage
Charge CO 2 Packaged rice, in the presence of CO during storage 2 It is continuously absorbed by rice grains, and after a certain period of time, it is completely absorbed. The bag is tightly attached to the rice grains, showing the same dense and hard lumps as vacuum packaging.
Although the new nano-antibacterial packaging materials can inhibit bacteria and resist aging to a certain extent, the cost of industrialization is high and it is not easy to promote

Method used

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  • Method for prolonging storage period of germ-remaining rice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] S1 Place the fresh germ rice under the conditions of room temperature 25°C and humidity 65%, spread it out, and set it aside; spray L-ascorbyl palmitate on the surface of the germ rice by spraying according to the addition amount of 3%;

[0021] S2 puts a certain amount of fresh germ rice in a PVC plastic bag, vacuumizes the plastic bag and seals it;

[0022] The packaged bag after vacuuming is placed in ultra-high pressure and low temperature treatment, the temperature is 25°C: the ultra-high pressure time is 5 minutes, the ultra-high pressure strength is 150MPa, and it is sterilized by one-time pressurization;

[0023] S3 puts the germ rice after the ultra-high pressure and low temperature treatment at room temperature, and adds an aluminum-plastic composite packaging bag outside the vacuum packaging bag.

[0024] The treated germ rice was stored at room temperature (25±3° C., 65±3% RH) for 6 months.

Embodiment 2

[0025] Embodiment 2 (best solution)

[0026] S1 Place the fresh germ rice under the conditions of room temperature 25°C and humidity 65%, spread it out, and set it aside; spray L-ascorbyl palmitate on the surface of the germ rice by spraying according to the addition amount of 3%;

[0027] S2 puts a certain amount of fresh germ rice in a PVC plastic bag, vacuumizes the plastic bag and seals it;

[0028] Put the packaged bag after evacuation in ultra-high pressure and low temperature treatment, temperature 25°C: ultra-high pressure time 5min, ultra-high pressure strength 150MPa, adopt 2min, 1min, 2min three-stage continuous pressurization to sterilize;

[0029] S3 puts the germ rice after the ultra-high pressure and low temperature treatment at room temperature, and adds an aluminum-plastic composite packaging bag outside the vacuum packaging bag.

[0030] The treated germ rice was stored at room temperature (25±3° C., 65±3% RH) for 6 months.

Embodiment 3

[0032] S1 Put the fresh germ rice under the conditions of room temperature 25°C and humidity 65%, spread it out, and set it aside; spray L-ascorbyl palmitate on the surface of the germ rice by spraying according to the addition amount of 1%.

[0033] S2 puts a certain amount of fresh germ rice in a PVC plastic bag, vacuumizes the plastic bag and seals it;

[0034] Put the packaged bag after evacuation in ultra-high pressure and low temperature treatment, temperature 35°C: ultra-high pressure time 7min, ultra-high pressure strength 100MPa, adopt 2min, 3min, 2min three-stage continuous pressurization to sterilize;

[0035] S3 puts the germ rice after the ultra-high pressure and low temperature treatment at room temperature, and adds an aluminum-plastic composite packaging bag outside the vacuum packaging bag.

[0036] The treated germ rice was stored at room temperature (25±3° C., 65±3% RH) for 6 months.

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Abstract

The invention discloses a method for prolonging storage period of germ-remaining rice, and relates to the technical field of storage and preservation. The method is adopted for storing germ-remainingrice, an L-ascorbyl palmitate antioxidant with the concentration of 3% is applied through a spraying method, then the germ-remaining rice is subjected to PVC vacuum packaging, placed at a temperatureof 25 DEG C, and is sterilized at ultra-high pressure strength of 150 MPa by adopting a three-time pressurization method, wherein the sterilization time is 2 minutes, 1 minute and 2 minutes respectively, and after sterilization is completed, the rice is stored at the room temperature for 6 months. Compared with the control, after the germ-remaining rice is subjected to a series of treatment, lipase and lipoxygenase are both inactivated, and the free fatty acid content of the germ-remaining riceis still maintained at about 10 mg / 100g in the sixth month.

Description

Technical field: [0001] The invention relates to the technical field of storage and preservation, in particular to a method for prolonging the storage period of rice with germs. Background technique: [0002] Germ rice, also known as germ rice, is rice that retains more than 80% of the germ during rice processing, and has a high nutritional value. However, due to the loss of the protection of rice husk and chaff, the germ of germ rice is exposed to the outside, which is very easy to breed mold. Coupled with the respiration of germ rice itself, lipase, amylase, protease and other substances are secreted too much, which will decompose the nutrients in germ rice, accelerate aging and affect the taste. The use of traditional plastic film for vacuum small packaging, or "sell it now" cannot achieve large-scale sales in the market and the storage time is too short. [0003] At present, the storage methods of commercially available germ rice in Yanchang mainly focus on the researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B9/00A23B9/14
CPCA23B9/00A23B9/14A23B9/005A23V2002/00A23V2200/10A23V2250/30A23V2300/46
Inventor 张乐
Owner ANHUI TIANLI GRAIN & OIL GRP
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