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Orange peeling method by biological enzyme method

A bio-enzyme method and citrus technology, applied in the field of citrus bio-enzyme peeling, can solve the problems affecting the competitiveness of citrus canned enterprises, the outflow of citrus juice, and the easily damaged capsule flaps, so as to facilitate mechanized operation, maintain the original flavor, easy peeling effect

Active Publication Date: 2011-05-18
HUNAN AGRI PRODS PROCESSING INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Both fresh and processed citrus need to be peeled. The traditional method of manual peeling (or cutting in half) is generally used for fresh eating or canning, that is, using tools such as knives or bamboo slices to puncture the outer skin of the citrus, then manually peeling the outer skin, and then It is time-consuming and labor-intensive to manually tear off the inner epidermis and orange network attached to the sac valve, and it is easy to damage the sac valve, causing the citrus juice to flow out
For non-wide-skinned tangerines (orange and grapefruit, etc.), peeling is more difficult due to the thick and tight inner skin
Canned orange petals is the leading product of citrus processing in China, accounting for more than 60% of the international market. It is the most competitive product of my country's citrus industry in the international market. However, in the current processing of canned citrus, the traditional manual peeling method is basically used. , labor-intensive, low production efficiency, large loss, and difficult management have affected the continuation of the domestic citrus canned enterprises' competitiveness in the international market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The present invention obtains peeled Wenzhou tangerine through the following steps:

[0020] 1. Preparation of raw materials: Choose fresh, strong aroma and high sugar content of Wenzhou tangerines, clean the 50kg Wenzhou tangerines after sorting, and use a needle length of 3mm and a needle density of (2~6) stitches / cm 2 The needle bed perforated the outer and inner epidermis of Wenzhou mandarin, and did not damage the sac flap of Wenzhou mandarin. Keep the perforated Wenzhou mandarin for future use;

[0021] 2. Enzymatic hydrolysis solution preparation: add 0.5kg pectinase (food grade, enzyme activity ≥1.2 million u / g, produced by Hersbit Biotechnology Co., Ltd.) and 0.5kg cellulase (enzyme activity ≥18,000 u / g) in water / ml, produced by Hersbit Biotechnology Co., Ltd.), prepared into a 25kg enzymatic hydrolysate, stirred evenly and lowered to 3°C for storage for later use;

[0022] 3. Vacuum soaking: in a vacuum tank, soak the 50kg Wenzhou mandarin oranges that have been pie...

Embodiment 2

[0026] The present invention obtains peeled sweet orange through the following steps:

[0027] 1. Preparation of raw materials: Choose fresh sweet orange, clean the 50kg sweet orange after sorting, and use a needle length of 7mm and a needle density of (2~6) stitches / cm 2 The needle bed perforated the outer and inner epidermis of the sweet orange, and did not damage the sac flap of the sweet orange. Save the perforated sweet orange for later use;

[0028] 2. Enzymatic hydrolysis solution preparation: add 0.75kg pectinase (food grade, enzyme activity ≥1.2 million u / g, produced by Hersbit Biotechnology Co., Ltd.) and 0.75kg cellulase (enzyme activity ≥18,000 u / g) in water / ml, produced by Hersbit Biotechnology Co., Ltd.), prepared into a 25kg enzymatic hydrolysate, stirred evenly and lowered to 10°C and stored for later use;

[0029] 3. Vacuum soaking: in a vacuum tank, soak the 50kg sweet orange after perforation above the liquid level of the 25kg enzymatic hydrolysate that has been p...

Embodiment 3

[0033] The present invention obtains peeled Shatian pomelo through the following steps:

[0034] 1. Raw material preparation: Choose fresh Shatian pomelo, clean the 50kg Shatian pomelo after sorting, and use a needle length of 22mm and a needle density of (2~6) needles / cm 2 The needle bed perforated the outer and inner epidermis of Shatian pomelo, and did not damage the sac flap of Shatian pomelo. Keep the perforated Shatian pomelo for future use;

[0035] 2. Enzymatic hydrolysis solution preparation: add 0.75kg pectinase (food grade, enzyme activity ≥1.2 million u / g, produced by Hersbit Biotechnology Co., Ltd.) and 1.2kg cellulase (enzyme activity ≥18,000 u / g) in water / ml, produced by Hersbit Biotechnology Co., Ltd.), prepared into a 25kg enzymatic hydrolysate, stirred evenly and lowered to 10°C and stored for later use;

[0036] 3. Vacuum soaking: in a vacuum tank, soak the above-mentioned perforated 50kg Shatian pomelo below the surface of the 25kg enzymatic hydrolysate that has ...

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PUM

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Abstract

The present invention discloses a method for removing tangerine peel by adopting biological enzyme method. Said method includes the following steps: (1), using needle bed to prick cleaned tangerine; (2), adding pectinase whose mass concentration is 1.5-5% and cellulose whose mass concentration is 1-5% into water and uniformly stirring them so as to obtain an enzymolysis solution; (3), soaking thepricked tangerine in the prepared enzymolysis solution, then evacuating, after the enzymolysis solution is penetrated into the tangerine interior, restoring to normal pressure; (4), heating to 30deg.C-60deg.C, retaining for 0.25-2.5h to making enzyme treatment; and (5), using external force to remove peel and remove pith so as to obtain the invented peeled tangerine.

Description

Technical field [0001] The invention relates to a process method for citrus peeling, in particular to a method for peeling citrus fruits by using a biological enzyme preparation. Background technique [0002] China is the world's largest producer of citrus, with a planting area of ​​1.714 million hectares in 2005, ranking first in the world, with an output of 16.0195 million tons, ranking second in the world. The citrus industry has become one of the pillar industries in the main citrus production areas in southern my country. Citrus peel is composed of outer skin and inner skin. The outer epidermis (colored layer) is leathery and rich in oil sacs; the inner epidermis, that is, the white skin layer (including orange collaterals), is soft in texture and tightly attached to the outside of the sac flap. In citrus, the outer skin of citrus is easy to peel, but the outer skin of oranges (including limes), pomelo, lemon, grapefruit, lime and other citrus is difficult to peel. At pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23N7/01
Inventor 单杨李高阳何建新张菊华付复华苏东林张群李志江刘阳
Owner HUNAN AGRI PRODS PROCESSING INST
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