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Preparation method of clear pear juice

A technology of pear juice and juice, which is applied in the field of preparation of clarified pear juice, can solve the problems of high cost, high cost, and easy deterioration, and achieve the effect of low addition amount, high activity, and low cost

Active Publication Date: 2014-12-24
JILIN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology uses extraction from plants called buck wheat or barley seeds with specific ingredients like lime (which helps prevent brown stains) along with water to create clear liquid that looks good when used on food products such as milk beverages.

Problems solved by technology

This patented technical problem addressed during this patents text relates to improving the efficiency or effectiveness of producing pure peanut milk without causing unwanted flavors that can affect its taste and appearance when stored overtime due to fading caused by sunlight exposure. Current options such as natural settling, UF (ultraviolet ray) filtrating, and pH adjustments have limitations including slowdown times, low productivity, lack of consistency between different types of products produced at once, difficulty handling filters made from foreign materials, etc., making them challenged towards further improvement.

Method used

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  • Preparation method of clear pear juice
  • Preparation method of clear pear juice
  • Preparation method of clear pear juice

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Clarified pear preparation case at room temperature.

[0037] Overall steps: Screening and cleaning apples and pears→removing cores and stems→squeezing juice→filtering with filter cloth→adding buckwheat extract→natural sedimentation→low-speed centrifugation→measurement of light transmittance, color value and browning index.

[0038] Choose fresh, ripe, moderately sized, disease-free apples and pears, rinse them with clean water for 20-30 seconds, and wash away the pesticides and sediment on the surface. Split the washed apples and pears, remove the light yellow core of the apples and pears, manually remove the stems of the apples and pears, cut the apples and pears into 2.5×2.0cm size, accurately weigh 200g for later use, and quickly cut the pears Put it into a hydraulic juice extractor for crushing and juicing. Quickly pour the dregs in the juicer into the prepared 120-mesh filter cloth and manually filter to obtain turbid apple pear juice.

[0039] Pipette 14ml of a...

Embodiment 2

[0047] Clarified apple pear preparation case under different pH conditions.

[0048] Overall steps: screening and cleaning of apples and pears→pitting and stemming→juicing→filtering with filter cloth→adjusting pH value→adding buckwheat extract→sedimentation→low-speed centrifugation→measurement of light transmittance, color value and browning index.

[0049] Choose fresh, ripe, moderately sized, disease-free apples and pears, rinse them with clean water for 20-30 seconds, and wash away the pesticides and sediment on the surface. Split the washed apple pears in half, remove the pale yellow core of the apple pears, manually remove the stems of the apple pears, cut the apple pears into 2.5×2.0cm sizes, and accurately weigh 200g for later use. Quickly put the cut pear pieces into the hydraulic juicer for crushing and juicing. Quickly pour the dregs in the juicer into the prepared 120-mesh filter cloth and manually filter to obtain turbid apple pear juice. The initial pH value of ...

Embodiment 3

[0057] Clarification preparation method of apple pear under different holding time conditions.

[0058]Overall steps: screening and cleaning of apples and pears→pitting and stemming→juicing→filtering with filter cloth→adjusting pH value→adding buckwheat extract→sedimentation→low-speed centrifugation→measurement of light transmittance, color value and browning index.

[0059] Choose fresh, ripe, moderately sized, disease-free apples and pears, rinse them with clean water for 20-30 seconds, and wash away the pesticides and sediment on the surface. Split the washed apple pears in half, remove the pale yellow core of the apple pears, manually remove the stems of the apple pears, cut the apple pears into pieces of about 2.5×2.0 in size, and accurately weigh 200g for later use. Quickly put the cut pear pieces into the hydraulic juicer for crushing and juicing. Quickly pour the dregs in the juicer into the prepared 120-mesh filter cloth and manually filter to obtain turbid apple pea...

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PUM

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Abstract

The invention discloses a preparation method of a clear pear juice. The preparation method comprises the following steps: (1) screening and cleaning pears as a raw material; (2) crushing; (3) juicing; (4) filtering; (5) adding a buckwheat extract solution; (6) settling in a heat-preservation manner; and (7) performing low-speed centrifugation to obtain the clear pear juice. According to the preparation method, after a buckwheat extract is added, settling is performed at a temperature of 20-50 DEG C for 50 minutes in the heat-preservation manner, and further centrifugal pretreatment is performed by adopting a low-speed centrifuge to obtain the clear pear juice; the pear juice prepared according to the conditions has light transmittance of reaching up to 62.79 percent-106.3 percent and a browning-inhibiting rate of reaching up to 19.9 percent-86.6 percent, and has characteristics of low adding amount, high activity, and the like. A natural, pollution-free and low-cost clarifying method of inhibiting browning is provided for the pear juice processing industry and other industries.

Description

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Claims

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Application Information

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Owner JILIN AGRICULTURAL UNIV
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