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Anti-hardening method of dry medlar fruits

A technology of dried wolfberry fruit and anti-hardening, which is applied in the direction of protecting fruits/vegetables with a coating protective layer, can solve problems such as moisture absorption and hardening of dried wolfberry fruit, achieve industrialized continuous production, prevent oxidative browning, and have low equipment requirements. Effect

Active Publication Date: 2013-04-03
CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there has not been any report on the use of wax coating technology in the wolfberry production industry to prevent moisture absorption and hardening of dried wolfberries

Method used

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  • Anti-hardening method of dry medlar fruits
  • Anti-hardening method of dry medlar fruits
  • Anti-hardening method of dry medlar fruits

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 The anti-caking method of dried wolfberry fruit comprises the following steps:

[0025] ⑴Material selection: select fresh goji berries without pests, mildew and damage as raw materials.

[0026] ⑵Drying: Wash the fresh goji berries selected in step 1, remove the wax and spread them on the reed cane. Remove the fruit stalk when it is soft, and then dry it in the sun; do not turn it when drying, so as not to affect the quality. When it is rainy, it is advisable to use the drying method. First, dry it at 45-50°C until it is 70% or 80% dry, and then dry it at 55-60°C until it is completely dry, so that the moisture content is ≤13%, and the dried wolfberry fruit is obtained.

[0027] (3) Waxing: Mix solid beeswax and liquid paraffin at a mass ratio of 1:1 (g / g), heat at 60°C to melt and stir evenly to obtain liquid mixed wax, which is stored at a constant temperature of 50°C spare.

[0028] (4) Coating: Put the dried fruit of wolfberry in the coating mac...

Embodiment 2

[0030] Example 2 The anti-caking method of dried wolfberry fruit comprises the following steps:

[0031] ⑴Material selection: select fresh goji berries without pests, mildew and damage as raw materials.

[0032] ⑵Drying: Wash and remove the fruit wax from the fresh goji berries selected in step 1, spread them flat on a stainless steel sieve with a thickness of no more than 3cm, then place the sieve on a drying rack, and wait until the temperature of the hot air circulation drying room reaches 45~50°C , push the drying rack into the drying room, open the drying room every 8 hours to check the drying degree, turn the wolfberry when it is 70% or 80% dry, and raise the temperature to 50~60°C, regularly check the moisture content of the wolfberry until the moisture content is ≤ 13%, to obtain dried goji berries.

[0033] (3) Waxing: Mix solid beeswax and liquid paraffin at a mass ratio (g / g) of 1.1:1, heat at 70°C to melt and stir evenly to obtain liquid mixed wax, which i...

Embodiment 3

[0036] Example 3 The anti-caking method of dried wolfberry fruit comprises the following steps:

[0037] ⑴Material selection: select fresh goji berries without pests, mildew and damage as raw materials.

[0038] (2) Drying: Wash the fresh wolfberry fruit selected in step (1), remove the fruit wax, and then freeze-dry according to the conventional method until the water content is ≤13%, so as to obtain dried wolfberry fruit.

[0039] (3) Waxing: Mix solid beeswax and liquid paraffin at a mass ratio (g / g) of 1.2:1, heat at 65°C to melt and stir evenly to obtain liquid mixed wax, which is stored at a constant temperature of 50°C spare.

[0040] (4) Coating: Put the dried fruit of wolfberry in the coating machine, and feed hot air at 55°C, spray evenly at a speed of 100r.p.m, and spray 1.0g of liquid mixed wax on 100g of dried fruit of wolfberry, and constantly turn over the dried fruit to make the coating The coating is uniform, and the dried wolfberry fruit after coati...

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Abstract

The invention relates to an anti-hardening method of dry medlar fruits. The method comprises the following steps of: (1), selecting raw materials: selecting fresh medlars free from plant diseases and insect pests, mildew and damage as the raw materials; (2), drying: cleaning and eliminating waxy coatings of the selected fresh medlars, and drying till the moisture content is less than or equal to 13%, so that dry medlar fruits are obtained; (3), preparing wax: after mixing solid beewax and liquid paraffin, heating to melt, uniformly stirring to obtain liquid mixed wax, and preserving the liquid mixed wax at constant temperature of 50 DEG C, for future use; (4), coating: putting the dry medlar fruits in a coating machine, introducing hot air, uniformly spraying 0.5-1.0g of the liquid mixed wax if the dry medlar fruits are 100g according to the rotation speed of 80-120 rpm, and uniformly coating, so that coated dry medlar fruits are obtained; and (5), preparing a finished product: grading the coated dry medlar fruits according to quality requirements by adopting a conventional method, and packaging and inspecting to obtain the finished product. The anti-hardening method of the dry medlar fruits disclosed by the invention is capable of effectively preventing against moisture absorbing and hardening and is easy to control instantly, therefore, industrialized continuous production can be realized.

Description

technical field [0001] The invention relates to the technical field of wolfberry fruit processing, in particular to a method for anti-hardening of dried wolfberry fruit. Background technique [0002] Lycium barbarum is the dry and mature fruit of Lycium barbarum, a plant of the Solanaceae family. It is sweet in taste and flat in nature, and it belongs to the liver, kidney, and lung meridian. Symptoms such as soreness, nocturnal emission, thirst, consumptive cough, etc., "Materia Medica Tongxuan" records: "Goji berry, nourishes the kidney and replenishes essence, and when the water is prosperous, the bones are strong, and diabetes, dizziness, waist pain and knee pain are all healed." Modern research It has been shown that wolfberry also has the effects of lowering blood sugar, anti-fatty liver, and anti-atherosclerosis, and is a good medicinal material and tonic. Lycium barbarum can be added to tea, porridge, rice, soup, and dishes like ordinary food, but there are no disadv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/16
Inventor 索有瑞叶英韩丽娟
Owner CHINA ACAD OF SCI NORTHWEST HIGHLAND BIOLOGY INST
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