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Production method of apple pectin

A production method and technology of apple pectin, which are applied in food preparation, food science, application and other directions, can solve the problems of high impurity content and high energy consumption in concentrates, and achieve the effects of low impurity content and low energy consumption

Inactive Publication Date: 2009-02-04
三门峡富元果胶工业有限公司
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Problems solved by technology

The production method of pectin is apple peel crushing pretreatment, hydrolysis extraction, filtration, decolorization, filtrate concentration, alcohol precipitation, filtration, drying, and finished product. The filtrate concentration method is vacuum concentration method, which has high energy consumption and makes impurities Concentration is obtained, and the concentration of impurities in the concentrate is too high

Method used

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  • Production method of apple pectin

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Embodiment Construction

[0010] Such as figure 1 Shown, a kind of production method of apple pectin, apple skin crushing pretreatment, hydrolysis extraction, filtration, decolorization, filtrate concentration, alcohol precipitation, filtration, drying, finished product, its filtrate concentration step is to use membrane concentration technology in continuous advance, The pectin solution is concentrated by the discharge circulation method, the aqueous solution in the pectin solution, impurities such as low molecular weight organic pigments, and inorganic salts are filtered out through the pore size of the membrane, and the high molecular weight pectin substances are intercepted to play a concentration role. The use of membrane concentration technology membrane is a multi-group parallel method, and the membrane of membrane concentration technology is an inorganic membrane.

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Abstract

The invention discloses a production method of apple pectin, which comprises the steps as follows, apple skin is crushed, pretreated and hydrolyzed; apple pectin is extracted, filtered and decolored; the filtrate is condensed and settled with ethanol; the solution is filtered and dried, thus getting the finished product. The filtrate is condensed through continuous circulation of feeding and discharging materials by adopting the membrane concentration technique, thus condensing the pectin solution. The production method of apple pectin has the advantages of low dissipation of energy, and low impurity content in the concentrate.

Description

technical field [0001] The invention relates to a production method of pectin, in particular to a production method of apple pectin. Background technique [0002] Pectin is widely found in fruits and vegetables. The basic structure of pectin is polygalacturonic acid linked by α-1, 4 glycosidic bonds. Part of the carboxyl groups are methylated, and the rest of the carboxyl groups are combined with potassium, sodium and calcium ions. Combine into salt. In fruits and vegetables, especially unripe fruits and skins, pectin is mostly present as protopectin. Protopectin is insoluble in water, so it is hydrolyzed with acid to produce soluble pectin, which becomes commercial pectin after decolorization, precipitation and drying. Pectin is not easy to digest and absorb, and is non-toxic and harmless to the human body. Not only does it not have the disadvantages of crude fiber stimulating the stomach, but it also has the functions of lowering blood cholesterol, absorbing intestinal t...

Claims

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Application Information

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IPC IPC(8): C08B37/06A23L1/03A23L1/035A23L1/0524A23L1/307A23L29/00A23L29/10A23L29/231A23L33/20
Inventor 赵博理金霏雪杨书玉
Owner 三门峡富元果胶工业有限公司
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