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Method for preparing 1-pectinose from pea pods as raw materials with coproduction of xylose

A technology of arabinose and pea peel, which is applied in the field of functional sugar preparation, can solve the problems that restrict the production cost of l-arabinose, it is difficult to directly crystallize, and the process is complicated, so as to reduce the subsequent processing load and avoid salt ions intake and reduce environmental pollution

Active Publication Date: 2014-07-16
FUTASTE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pea peels are rich in crude fiber. There are foreign literature reports that the pectin in pea peels is rich in xylose, but there are few studies on the use of pea peels to produce l-arabinose. At present, l- The production of arabinose is difficult to crystallize directly due to the low content of arabinose in raw materials in industrial production. Chromatographic separation is often used to separate other miscellaneous sugars to obtain high-purity crystalline arabinose, but this process is complicated. The operation is difficult and has become a bottleneck restricting the high production cost of l-arabinose

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] 1) Take 100g of raw pea hulls, add 2000g of potassium hydroxide solution with a mass concentration of 0.05%, and cook for 50 minutes in a 95°C cooking pot; filter the pretreatment mixture and discard the filtrate to obtain a filter residue;

[0026] 2) Preparation of l-arabinose liquid: add the filter residue obtained above to the steam explosion equipment, increase the pressure to 1.2MPa, hold the pressure for 10 minutes, and instantaneous steam explosion to obtain the filter residue after steam explosion, and add the mud wet to the filter residue. 1000g of purified water weighing about 7 times, heating to 80°C, holding for 30min, filtering, collecting the filtrate, adding 700g of purified water about 5 times the wet weight of mud to the filter mud, heating to 50°C, holding for 10min, and filtering to obtain Filter residue mud and filtrate, collect the filtrate, a total of 1570ml of steam explosion extract is obtained, in which the yield of reducing sugar in the extract is...

Embodiment 2

[0031] 1) Take 100g of pea skin raw materials, add 1500g of sodium hydroxide aqueous solution with a mass concentration of 0.08%, and cook for 60 minutes in a 90°C cooking pot; filter the pretreatment mixture, and discard the filtrate to obtain a filter residue.

[0032] 2) Preparation of l-arabinose liquid: add the filter residue obtained above into the steam explosion equipment, increase the pressure to 1.5MPa, hold the pressure for 8 minutes, and instantaneous steam explosion to obtain the filter residue after steam explosion, and add the mud wet to the filter residue. 1000g of purified water weighing about 7 times, heating to 70°C, holding for 50 minutes, filtering, and collecting the filtrate, adding 800g of purified water about 6 times the wet weight of the mud to the filter mud, heating to 50°C, holding for 10 minutes, and filtering to obtain The filter residue and the filtrate were collected and the filtrate was collected to obtain a total of 1,660 ml of steam explosion ex...

Embodiment 3

[0037] 1) Take 100g of pea hull raw materials, add 1000g of sodium carbonate aqueous solution with a mass concentration of 0.1%, and cook for 60 minutes in a 100°C cooking pot; filter the pretreatment mixture, and discard the filtrate to obtain a filter residue

[0038] 2) Preparation of l-arabinose liquid: add the filter residue obtained above into the steam explosion equipment, increase the pressure to 1.0 MPa, hold the pressure for 8 minutes, and instantaneous steam explosion to obtain the filter residue after steam explosion, and add the mud to the filter residue mud. 1000g of purified water weighing about 7 times, heating to 70°C, holding for 50 minutes, filtering, and collecting the filtrate, adding 700g of purified water about 5 times the wet weight of the mud to the filter mud, heating to 50°C, holding for 10 minutes, and filtering to obtain Filter residue mud and filtrate, and collect the filtrate to obtain a total of 1560 ml of steam explosion extract, wherein the yield ...

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Abstract

The invention provides a method for preparing 1-pectinose from pea pods as raw materials with coproduction of xylose. The method comprises the following steps: preprocessing the raw materials, extracting 1-pectinose by a steam explosion method, and extracting xylose by acid hydrolysis or an acid steam explosion method. According to the method, part of impurities in the pea pods are removed through an alkali preprocessing process, so that the 1-pectinose purity can be improved; the pea pod raw materials are hydrolyzed by virtue of the steam explosion method, and a high-content 1-pectinose solution can be obtained without acid consumption and can be directly crystallized by one-step ultrafiltration in a refinement process without chromatographic separation to obtain 1-pectinose, so that the production process is simplified, the operation is easy, and the production cost is reduced; hydrolysis residues after extraction of 1-pectinose is subjected to acid hydrolysis or steam explosion to coproduce the xylose, so that the pea pod raw materials are fully utilized.

Description

Technical field [0001] The invention belongs to the technical field of functional sugar preparation, and specifically relates to a method for preparing l-arabinose by using pea hull as a raw material and by-producing xylose. Background technique [0002] Pea belongs to the legume family and originated in western Asia. Because of its strong adaptability, it has a wide geographical distribution throughout the world. It has very high nutritional value. Among them, the starch content is the highest, reaching 52-55%. Many domestic vermicelli manufacturers The starch in pea is used as raw material to produce vermicelli, and the pea hulls rich in crude fiber are used as feed as a by-product. The added value is very low. There are few domestic researches on the utilization of pea hulls. Therefore, it is urgent to develop a method Turn waste into treasure and create higher economic value. Pea skin is rich in crude fiber. There are reports in foreign literature that it is rich in xylose b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C13K13/00
Inventor 聂永来曹玉华王成福孙鲁梁学超张亮邵竞峰
Owner FUTASTE PHARM CO LTD
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