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An industrial method for recovering raffinose from waste

A raffinose and waste technology, applied in chemical instruments and methods, oligosaccharides, animal husbandry, etc., can solve the problems of unfavorable enterprise development, high investment and cost, long process route, etc., and achieve easy large-scale industrial production, The effect of low production cost and avoiding environmental pollution

Active Publication Date: 2020-12-01
JIANGNAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In recent years, with the continuous development of the oligosaccharide industry and the deepening of people's understanding of the functions and health effects of oligosaccharides, scholars have paid more and more attention to the comprehensive utilization of by-products processed by enterprises. Lou Xiangyu disclosed a A method for extracting raffinose from cottonseed wastewater (CN102002075A), but the method has a long process route, uses a variety of auxiliary materials, and adopts the methods of decolorization, crystallization and recrystallization to produce high-content raffinose products, and the investment and cost are very high. High, not conducive to the development of enterprises

Method used

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  • An industrial method for recovering raffinose from waste

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Experimental program
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Effect test

Embodiment 1-1

[0023] Take 100L of dephenolized waste water from a cottonseed processing plant. After testing, the solid content is 4.8%, and the raffinose content is 1.5%. 12°C. First take the ratio of viscous and isopropanol solution as 1:0.5, homogenize in the homogenizer for 15s, filter to remove the filtrate, then add 1:1 isopropanol solution, homogenize in the homogenizer for 35s, Filter and remove the filtrate, finally add 1:1.5 isopropanol solution, homogenize in a homogenizer for 70 seconds, filter and remove the filtrate, mix and stir the sieve with 1:5 water, filter, adjust the pH of the filtrate to 3.0, Centrifuge, add 5% resistant dextrin to the supernatant, mix and homogeneously spray dry to obtain a raffinose powder product in which the raffinose content is 45%, the moisture content is 4.8%, the ash content is 4.2%, and the total number of colonies is 300CFU / g, free gossypol is 5mg / kg, which can be directly used in feed.

Embodiment 1-2

[0025] Take 100L of dephenolized waste water from a cottonseed processing plant. After testing, the solid content is 4.8%, and the raffinose content is 1.5%. It is concentrated under negative pressure of -0.01mpa until the solid content is 48%. 12°C. First take the ratio of viscous and isopropanol solution as 1:0.7, homogenize in the homogenizer for 10s, filter to remove the filtrate, then add 1:1.2 isopropanol solution, homogenize in the homogenizer for 32s, Filter and remove the filtrate, finally add 1:1.7 isopropanol solution, homogenize in a homogenizer for 65 seconds, filter and remove the filtrate, mix and stir the sieve with 1:6 water, filter, adjust the pH of the filtrate to 3.5, Centrifuge, add 5% resistant dextrin to the supernatant, mix and homogeneously spray dry to obtain a raffinose powder product in which the raffinose content is 48%, the moisture content is 4.5%, the ash content is 4.8%, and the total number of colonies is 650CFU / g, free gossypol is 8mg / kg, w...

Embodiment 1-3

[0027] Take 100L of dephenolized waste water from a cottonseed processing plant. After testing, the solid content is 4.8%, and the raffinose content is 1.5%. It is concentrated under negative pressure of -0.01mpa until the solid content is 35%. 12°C. First take the ratio of viscous and isopropanol solution as 1:0.5, homogenize in the homogenizer for 25s, filter and remove the filtrate, then add 1:1.4 isopropanol solution, homogenize in the homogenizer for 45s, Filter and remove the filtrate, finally add 1:2.0 isopropanol solution, homogenize in a homogenizer for 80s, filter and remove the filtrate, mix and stir the sieve with 1:5 water, filter, adjust the pH of the filtrate to 2.8, Centrifuge, add 5% resistant dextrin to the supernatant, mix and homogeneously spray dry to obtain a raffinose powder product in which the raffinose content is 42%, the moisture content is 4.5%, the ash content is 3.2%, and the total number of colonies is 580CFU / g, free gossypol was not detected. ...

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Abstract

The invention discloses an industrial method for recycling raffinose from waste. The method comprises the following steps: collecting dephenolization wastewater produced during processing of cottonseed or molasses waste liquor produced during processing of sugarcane and sugarbeet; heating up the dephenolization wastewater or molasses waste till the dephenolization wastewater or molasses waste is concentrated at negative micro-pressure state, and then rapidly cooling the dephenolization wastewater or molasses waste to form a viscous material; adding C1 to C3 alcoholic solution with different proportions into the viscous material, and then performing filtering; mixing the filtered oversize product and a certain proportion of water, so as to obtain mixed liquor; adjusting the pH value of themixed liquor, so as to obtain supernate; collecting the supernate, compounding the supernate and an auxiliary material, and then performing spray drying, so as to obtain the feed raffinose. The industrial method is short in process route, simple to operate, low in equipment requirement, low in production cost and wide in a market prospect; waste produced during the process of products, such as cottonseed, sugarcane and sugarbeet is sufficiently utilized, not only is environmental pollution avoided, but also the additional valve of the product is increased, the product quality is stable, and the method is easy for large scale industrial production.

Description

technical field [0001] The invention relates to the technical field of chemistry and chemical engineering, in particular to an industrialized method for recovering raffinose from waste. Background technique [0002] With the advancement of technology, the cottonseed processing industry has changed from the traditional high-temperature meal production process to the low-temperature dephenolization protein process. However, during the dephenolization process, dephenolization wastewater, commonly known as dephenolization liquid, is produced. These wastewater are usually discharged directly or used The traditional biochemical treatment brings a great burden to the enterprise; the production process of sugarcane and sugar beet will also produce a lot of wastewater containing molasses along with the production process. How to turn waste into wealth and reduce the burden of environmental pollution has become a topic for more and more researchers. [0003] In recent years, with the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07H3/06C07H1/06A23K20/163
CPCA23K20/163C07H1/06C07H3/06
Inventor 华欲飞宋伟光孔祥珍张彩猛陈业明
Owner JIANGNAN UNIV
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