Apple pection decolouring and white fine powder apple pectin producing process
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An apple pectin and production process technology, applied in the field of pectin production, can solve the problems of decreased gelation degree of products, ineffective decolorization of activated carbon ion exchange resin and the like
Inactive Publication Date: 2006-05-24
NORTHWEST A & F UNIV
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Unfortunately, the apple pectin produced by the traditional method is darker than the citrus pectin, and the activated carbon adsorption and ion exchange resin decolorization used in the past are not effective; peroxide bleaching has been tried in production, but the gelation degree of the product is serious. decline
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[0027] The present invention will be further described in detail below in combination with the principle of the present invention and the examples given by the inventor.
[0028] The process selects the apple pomace from the early July to early November of the fruit juice factory as raw material to produce apple pectin, that is, the unripe fallen fruit to the late ripe fruit after short-term storage can be used as the raw material for pectin production, and the later apple pomace is due to storage. If the period is too long, the pectin content will decrease.
[0029] Raw material drying:
[0030] When making dried apple pomace, heat the raw material of apple pomace to 95°C according to the traditional method, and keep it for 5-30 minutes to passivate the enzymes in the apples, so as to reduce the natural decomposition of pectin during the drying and storage of raw materials, and then lower the temperature Drop below 80°C and dry.
[0031] Pretreatment before extraction:
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Abstract
The invention discloses an apple pectin discolor technique and production white fine apple pectin technique. The technique has improved the traditional production pectin technique that is acid extraction alcohol sedimentation technique. And it exactly controls condition of raw material extraction pre process operation, increases the processing link of acid extraction liquid trash extraction discolor, and adopts the Japanese late macroporous resin HP2MGL layer adsorption column to do dynamic handing to the acid extraction liquid to make the removing rate of the phenols reach over 88%. The high quality pectin powder can be gained by condensing, drying, smashing from the purified extracting solution. And the phenols material that contains phenol over 60% would be gained.
Description
technical field [0001] The invention relates to pectin production technology, in particular to a decolorization process of apple pectin and a process for producing white fine powder apple pectin. Background technique [0002] Pectin is a kind of hydrophilic colloid, the main component is composed of α-1,4-D-galacturonic acid (D-galactuonic acid) units to form a skeleton chain, a small amount of rhamnose, galactose, arabinose, xylose The side chain is a polysaccharide in which part of the galacturonic acid is esterified with methanol, and the molecular weight is between 30,000 and 180,000. Pectin has good emulsifying, thickening, stabilizing and gelling effects, and has been widely used in food, textile, printing and dyeing, tobacco, metallurgy and other fields. Because pectin has the functions of antibacterial, hemostasis, detumescence, detoxification, antidiarrheal, hypolipidemic, anti-radiation, etc., it is also an excellent drug matrix integrati...
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