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Orange peeling method by biological enzyme method

A bio-enzymatic and citrus technology, applied in the field of citrus bio-enzymatic peeling, can solve the problems affecting the competitive advantage of canned citrus enterprises, the outflow of citrus juice, and the easy damage of capsule flaps, so as to facilitate mechanized operation, maintain the original flavor, Easy peeling effect

Active Publication Date: 2008-03-26
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 peeling Wenzhou tangerine through the following steps:

[0020] 1. Raw material preparation: select fresh Wenzhou tangerines with rich aroma and high sugar content, clean 50 kg of Wenzhou tangerines after sorting, and use needles with a length of 3 mm and a needle density of (2 to 6) needles / cm 2 The needle bed of the Wenzhou tangerine perforates the outer skin and inner skin of the Wenzhou tangerine without damaging the sac valve of the Wenzhou tangerine, and the perforated Wenzhou tangerine is reserved for use;

[0021] 2. Preparation of enzymatic hydrolysis solution: 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) into water / ml, produced by Hersbit Biotechnology Co., Ltd.), configured into 25kg of enzymatic hydrolysis solution, stirred evenly and lowered to 3°C for storage for later use;

[0022] 3. Vacuum soaking: In a vac...

Embodiment 2

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

[0027] 1. Preparation of raw materials: select fresh sweet oranges, clean 50kg of sweet oranges after sorting, and use needles with a length of 7mm and a needle density of (2-6) stylets / cm 2 The needle bed perforates the outer skin and the inner skin of the sweet orange without injuring the sac valve of the sweet orange, and the sweet orange after the perforation is reserved for later use;

[0028] 2. Preparation of enzymatic hydrolysis solution: 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) into water / ml, produced by Hersbit Biotechnology Co., Ltd.), configured into 25kg of enzymatic hydrolysis solution, stirred evenly and lowered to 10°C for later use;

[0029] 3. Vacuum soaking: In a vacuum tank, soak the above perforated 50kg sweet orange below the liquid level of the ...

Embodiment 3

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

[0034] 1. Raw material preparation: select fresh Shatian pomelo, clean 50kg of the sorted Shatian pomelo, and use needles with a length of 22mm and a needle density of (2-6) stylets / cm 2 The needle bed of the needle bed perforates the outer skin and inner skin of the Shatian pomelo without injuring the sac valve of the Shatian pomelo, and the perforated Shatian pomelo is reserved for use;

[0035] 2. Preparation of enzymatic hydrolysis solution: 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) into water / ml, produced by Hersbit Biotechnology Co., Ltd.), configured into 25kg of enzymatic hydrolysis solution, stirred evenly and lowered to 10°C for later use;

[0036] 3. Vacuum soaking: In a vacuum tank, soak 50kg of the perforated Shatian pomelo below the liquid level of 25kg...

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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 the pricked 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 for peeling citrus fruits, in particular to a method for peeling citrus fruits by using a biological enzyme preparation. Background technique [0002] China is a major producer of citrus in the world. In 2005, the planting area was 1.714 million hectares, ranking first in the world, and the output reached 16.0195 million tons, ranking second in the world. The citrus industry has become one of the pillar industries in the main citrus producing areas in southern my country. Citrus peels consist of an outer rind and an inner rind. The outer epidermis (colored layer) is leathery and contains rich oil sacs; the inner epidermis, namely the white cortex (including orange network), is soft in texture and tightly attached to the outer sac flap. In citrus, except for the outer skin of the wide-skinned oranges, which are easy to peel off, the outer skins of oranges (including limes), pomelo, lemons, grapefruit, limes and other...

Claims

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Application Information

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Patent Type & Authority Applications(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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