Method for preparing microcrystalline cellulose by using carrot pomace

A technology of microcrystalline cellulose and carrot residue, which is applied in pulping with inorganic alkali, raw material pretreatment, etc., can solve problems such as environmental pollution, waste of agricultural and sideline products, discarding of fruit and vegetable residue, etc., and achieves reduced production costs and simple and easy preparation process line, low cost effect

Inactive Publication Date: 2011-04-06
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the consumption of fruit and vegetable products increases year by year, a large amount of fruit and vegetable residues are discarded during the processing of fruit and vegetable products, resulting in a huge waste of agricultural and sideline products and environmental pollution caused by the accumulation of waste.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] 1. Pretreatment: Dry the carrot pomace at 60°C to constant weight, pulverize it with a pulverizer, and pass through a 100-mesh sieve;

[0017] 2. Hydrochloric acid treatment: add distilled water to the carrot residue obtained in step 1 according to the amount of residue: water = 1:2, adjust the pH value to 1.5 with 10% hydrochloric acid, put it into a water bath and heat it to 80 ° C, stir for 2 hours and then filter , washing the filter residue to neutrality;

[0018] 3. Sodium hydroxide treatment: add 10% sodium hydroxide solution to the filter residue obtained in step 2 according to the ratio of material to liquid 1g: 10ml, send it to a water bath and heat it to 35°C, filter after leaching for 20 hours, and wash the filter residue until neutral , the filter residue is carrot fiber;

[0019] 4. Ethanol degreasing: the carrot fiber obtained in step 3 is added to 80% ethanol solution according to the ratio of material to liquid 1g: 10ml, and heated to 25°C in a water b...

example 2

[0023] 1. Pretreatment: Dry the carrot pomace at 60°C to constant weight, pulverize it with a pulverizer, and pass through a 100-mesh sieve;

[0024] 2. Hydrochloric acid treatment: add distilled water to the carrot residue obtained in step 1 according to the amount of residue: water = 1:2, adjust the pH value to 1 with 10% hydrochloric acid, send it to a water bath and heat it to 70 ° C, stir for 1 hour and then filter , washing the filter residue to neutrality;

[0025] 3. Sodium hydroxide treatment: add 12% sodium hydroxide solution to the filter residue obtained in step 2 according to the ratio of material to liquid 1g: 10ml, send it into a water bath and heat it to 45°C, filter after leaching for 24 hours, and wash the filter residue until neutral , the filter residue is carrot fiber;

[0026] 4. Ethanol degreasing: the carrot fiber obtained in step 3 is added with 90% ethanol solution according to the ratio of material to liquid 1g: 10ml, heated to 35°C in a water bath,...

example 3

[0030] 1. Pretreatment: Dry the carrot pomace at 60°C to constant weight, pulverize it with a pulverizer, and pass through a 100-mesh sieve;

[0031] 2. Sodium hypochlorite treatment: add distilled water to the carrot residue obtained in step 1 according to the amount of residue: water = 1: 2, adjust the pH value to 2 with 10% hydrochloric acid, send it into a water bath and heat it to 90 ° C, and filter after stirring for 3 hours , washing the filter residue to neutrality;

[0032] 3. Sodium hydroxide treatment: add 8% sodium hydroxide solution to the filter residue obtained in step 2 according to the ratio of material to liquid 1g: 10ml, send it to a water bath and heat it to 25°C, filter after leaching for 16 hours, and wash the filter residue until neutral , the filter residue is carrot fiber;

[0033] 4. Ethanol degreasing: the carrot fiber obtained in step 3 is added to 100% ethanol solution according to the ratio of material to liquid 1g: 10ml, sent to a water bath and...

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PUM

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Abstract

The invention relates to a method for preparing microcrystalline cellulose by using carrot pomace, belonging to the technical field of edible materials. The preparation method comprises the following steps: 1. pretreatment; 2. treatment with hydrochloric acid; 3. sodium hydroxide treatment with sodium hydroxide; 4. de-esterification with alcohol; 5. bleaching with sodium hypochlorite; and 6. hydrolysis with hydrochloric acid. The microcrystalline cellulose prepared by the carrot pomace obtained in the invention can be widely used for medicine, food and daily chemical industries, and the preparation process is simple and easy to implement and is low in cost; the carrot pomace is used as a raw material, thereby not only increasing added values of deep processing of carrots, reducing the production cost of the microcrystalline cellulose, enriching the source of raw materials for producing edible fibers, but also being favorable for reducing environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of edible materials, and in particular relates to a method for preparing microcrystalline cellulose from carrot residue. Background technique [0002] Microcrystalline cellulose (MCC) is a linear molecule connected by β-1,4 glucosidic bonds. It is free-flowing white or Near white powdery solid product. In recent years, microcrystalline cellulose has been widely used in medicine, food and daily chemical industry. In the pharmaceutical industry, it is used as a pharmaceutical excipient and disintegrating agent. In the food industry, microcrystalline cellulose is a safe and reliable food additive. Its main functions are: to maintain the stability of dairy products, canned products and instant drinks; as a thickener to improve the structure of food; its adsorption High mineral content food can be obtained through the adsorption of metal ions. In the daily chemical industry, microcrystalline cellulose is used...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21B1/02D21C3/02
Inventor 马中苏刘欢王新伟魏静
Owner JILIN UNIV
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