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Purification method for treating araban in alkali treatment water for orange and tangerine tin can processing

A technology for arabinan and a purification method, which is applied to the field of purifying arabinan from canned citrus processing alkali-treated water, can solve the problems of unsuitability for large-scale production, low yield per unit time, complicated steps and the like, and achieves short purification time and cheap source. , the effect of simple purification process

Active Publication Date: 2016-10-26
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the above-mentioned whether it is a fast column or a conventional column, it involves a series of tedious and time-consuming pre-treatments such as cleaning packing, column packing, and equilibration, and there are also limitations such as small sample loading and low output per unit time, so it is not suitable for large-scale production.
In addition, the purification of arabinan also uses ethanol or ammonium sulfate fractional precipitation method, but additional precipitant is required, the steps are cumbersome and the cost is high

Method used

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  • Purification method for treating araban in alkali treatment water for orange and tangerine tin can processing
  • Purification method for treating araban in alkali treatment water for orange and tangerine tin can processing
  • Purification method for treating araban in alkali treatment water for orange and tangerine tin can processing

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Comparison scheme
Effect test

Embodiment 1

[0035] In this example, concentrates with different pH are used for heating and flocculation to optimize the purification effect of arabinan. The specific steps are as follows:

[0036] Take the alkali-treated water from the canned citrus processing and decapsulation process, and use HCl solution to adjust the pH to 5-7 (the concentration of HCl solution is not quantitative, and using a larger concentration can improve the efficiency of pH adjustment, and a large concentration of HCl requires a large stirring rate). Then use a vacuum concentrator to concentrate under reduced pressure at 50°C, and detect the total solid content (mass fraction) online, stop concentrating when the total solid mass fraction is 1.7-1.8%, and pump the concentrated solution into the acid-resistant heating Device, use 3mol / L hydrochloric acid solution to adjust the pH to 1, 1.5, 2.5, 3.5, 4. Evenly heated at 92°C for 15 minutes to produce flocs. After cooling down slightly, use a 350-mesh filter cloth...

Embodiment 2

[0040] In this embodiment, different heating temperatures are used to optimize the purification effect of arabinan. The specific steps are as follows:

[0041]Take the alkali-treated water from the canned citrus processing and decapsulation process, and use HCl solution to adjust the pH to 5-7 (the concentration of HCl solution is not quantitative, and using a larger concentration can improve the efficiency of pH adjustment, and a large concentration of HCl requires a large stirring rate). Then use a vacuum concentrator to concentrate under reduced pressure at 50°C, and detect the total solid content (mass fraction) online, stop concentrating when the total solid mass fraction is 1.6-1.7%, and pump the concentrated solution into the acid-resistant heating device, use 3mol / L hydrochloric acid solution to adjust the pH to 2.5. Heat uniformly at 80, 83, 88, 92, and 95°C for 15 minutes to produce flocs. After a little cooling, use a 350-mesh filter cloth to filter and collect the ...

Embodiment 3

[0045] In this embodiment, different heating times are used to optimize the purification effect of arabinan. The specific steps are as follows:

[0046] Take the alkali-treated water from the canned citrus processing and decapsulation process, and use HCl solution to adjust the pH to 5-7 (the concentration of HCl solution is not quantitative, and using a larger concentration can improve the efficiency of pH adjustment, and a large concentration of HCl requires a large stirring rate). Then use a vacuum concentrator to concentrate under reduced pressure at 50°C, and detect the total solid content (mass fraction) online, stop concentrating when the total solid mass fraction is 1.5-1.6%, and pump the concentrated solution into the acid-resistant heating device, use 3mol / L hydrochloric acid solution to adjust the pH to 2.5. Heating evenly at 92°C for 8min, 10min, 12min, 15min, and 20min respectively to produce flocs, after cooling slightly, filter with a 350-mesh filter cloth, coll...

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Abstract

The invention discloses a purification method for treating araban in alkali treatment water for orange and tangerine tin can processing. The purification method comprises the steps that the pH of the alkali treatment water is regulated to be neutral; then, the neutral liquid is subjected to vacuum concentration at the temperature of 50 DEG C till the mass fraction of the total solids is 1.5%-1.9%; after the pH of concentrate qualified in content of the total solids is regulated to be 1.0-3.5, even heating is performed at the temperature of 83-95 DEG C for more than 10 minutes to produce floccules, floccule-containing mixed liquid is filtered through filter cloth, and filtrate is collected; the filtrate is subjected to one-time ultra-filtration to remove small molecule impurities, and araban concentrate is obtained; the concentrate is subjected to spray drying to obtain araban powder. The raw materials are cheap and rich in source, and the araban belongs to an orange and tangerine tin can processing by-product. The purification method is simple in process operation and short in purification time and is suitable for industrial application, and the production process is green and environmentally friendly. In addition, waste discharge during orange and tangerine tin can processing s reduced, and the purification method has the positive significance on the orange and tangerine tin can processing.

Description

technical field [0001] The invention belongs to the field of polysaccharide extraction and purification, and in particular relates to a method for purifying arabinan in citrus canned processing water with alkali treatment. technical background [0002] Arabinan widely exists in plant tissues, including seeds, fruits and other parts, and is one of the components of plant cell walls. Here arabinan refers to a type of polysaccharide. In addition to arabinan with a relatively simple sugar composition found in rapeseed, arabinose (Ara) can also combine with xylose (Xyl), galactose (Gal), etc. It forms functional polysaccharides such as arabinoxylan (arabinoxylan, AX) and arabinogalactan (arabinogalactan, AG), which contain a large amount of arabinose, and is widely found in grains such as wheat and vegetables such as radish and potato. In addition, arabinan is also It is often classified as a component of pectin substances, and structurally, it is mainly attributed to the RGI re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/06
CPCC08B37/0045
Inventor 叶兴乾陈健乐程焕陈士国刘东红陈健初丁甜田金虎
Owner ZHEJIANG UNIV
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