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Method for superfine grinding of bamboo shoot dietary fibers

A technology of bamboo shoot dietary fiber and dietary fiber, which is applied in the field of ultra-fine pulverization of dietary fiber, can solve problems such as rough taste of dietary fiber, and achieve the effects of increasing functional groups, improving taste and enhancing ability.

Active Publication Date: 2017-09-19
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The invention discloses a method for superfine grinding of dietary fiber of thunder bamboo shoots, which can increase the content of soluble dietary fiber, solve the problem of rough taste of dietary fiber, and simultaneously enhance the in vitro binding of dietary fiber (cholesterol, sodium cholate, nitrite, etc. )Ability

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  • Method for superfine grinding of bamboo shoot dietary fibers
  • Method for superfine grinding of bamboo shoot dietary fibers
  • Method for superfine grinding of bamboo shoot dietary fibers

Examples

Experimental program
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Effect test

Embodiment 1

[0024] 1) Preparation of dietary fiber by compound enzymatic hydrolysis method. Thunder bamboo shoots powder and pure water are mixed evenly at a material-to-liquid ratio of 1:15, cooled after gelatinization at 95°C, and 0.3% α-amylase (adjusted to pH 6.0, 70°C, 1h), 0.45% glucoamylase (adjusted to pH 4 .2, 60°C, 1h) and 0.6% protease (adjust pH to 7.0, 55°C, 2h), then 100°C, 10min inactivate enzyme treatment, wash with water until neutral, dry in an oven at 50°C for later use.

[0025] 2) Pulverization treatment of the dietary fiber of bamboo shoots. Put the prepared dietary fiber of thunder bamboo shoots into a universal pulverizer for ordinary pulverization, and the pulverized dietary fiber is passed through a 100-mesh sieve.

[0026] 3) Characterize the structure of the dietary fiber of the pulverized Lei Bamboo shoots. The structure of dietary fiber was characterized by laser particle size analyzer, Fourier transform infrared spectrometer, X-ray diffraction, simultaneou...

Embodiment 2

[0029] 1) Preparation of dietary fiber by compound enzymatic hydrolysis method. Thunder bamboo shoots powder and pure water are mixed evenly at a material-to-liquid ratio of 1:15, cooled after gelatinization at 95°C, and 0.3% α-amylase (adjusted to pH 6.0, 70°C, 1h), 0.45% glucoamylase (adjusted to pH 4 .2, 60°C, 1h) and 0.6% protease (adjust pH to 7.0, 55°C, 2h), then 100°C, 10min inactivate enzyme treatment, wash with water until neutral, dry in an oven at 50°C for later use.

[0030] 2) Pulverization treatment of the dietary fiber of bamboo shoots. The prepared dietary fiber of thunder bamboo shoots is pulverized with a ZKY-303BS ultrafine pulverizer for about 1 hour, and the size of the airflow is adjusted to classify and collect for later use.

[0031] 3) Characterize the structure of the ultramicronized dietary fiber of Lei Bamboo shoots. The structure of dietary fiber was characterized by laser particle size analyzer, Fourier transform infrared spectrometer, X-ray dif...

Embodiment 3

[0034] 1) Preparation of dietary fiber by compound enzymatic hydrolysis method. Thunder bamboo shoots powder and pure water are mixed evenly at a material-to-liquid ratio of 1:15, cooled after gelatinization at 95°C, and 0.3% α-amylase (adjusted to pH 6.0, 70°C, 1h), 0.45% glucoamylase (adjusted to pH 4 .2, 60°C, 1h) and 0.6% protease (adjust pH to 7.0, 55°C, 2h), then 100°C, 10min to inactivate the enzyme, wash with water until neutral, and dry in an oven at 50°C for later use.

[0035] 2) Pulverization treatment of the dietary fiber of bamboo shoots. Use Micron Jet MillPilot airflow milling ultrafine pulverization process (parameters pulverization pressure 10bar, pulverization speed 8r / min) with the prepared Lei bamboo shoots dietary fiber, time is about 1 hour, airflow classification treatment, different collectors collect the dietary fiber of different particle sizes .

[0036] 3) Characterize the structure of the ultramicronized dietary fiber of Lei Bamboo shoots. The ...

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Abstract

The invention discloses a method for superfine grinding of bamboo shoot dietary fibers. The method comprises the steps of preparing high-quality dietary fibers (compound enzyme enzymolysis process) and performing superfine grinding treatment. The condition for preparing the dietary fibers according to the compound enzyme enzymolysis process is mild, the extracted dietary fibers are high in biological activity, and meanwhile, the content of the soluble dietary fibers is increased to that of high-quality dietary fibers. The dietary fibers acquired according to an air jetting milling method have the grain size of 8.87mu m and the specific surface area of 1.29m<2> / g. The capacities of the bamboo shoot dietary fibers after superfine grinding for in-vitro binding with cholesterol, sodium cholate and nitrite are obviously enhanced and are respectively 11.95mg / g, 141.87mg / g and 1716.78mu g / g. The air jetting milling not only can obviously reduce the grain size of the bamboo shoot dietary fibers and can solve the problem of rough taste of the dietary fibers but also can increase the content of the soluble dietary fibers and can enhance the functional character of the dietary fibers, so that the air jetting milling is the optimal manner for the superfine grinding of the bamboo shoots at present.

Description

technical field [0001] The invention relates to a method for ultrafine pulverization of dietary fiber. Background technique [0002] Thunder bamboo shoots are a high-fiber, high-protein, low-fat natural green healthy food, regular consumption can promote intestinal health. Fresh bamboo shoots have a short storage period and are mostly processed into canned food, fermented food, soft drinks and other products. The by-products in the processing of such products - Lei bamboo shoot residues, discarded at will not only cause environmental pollution but also cause waste of resources. Relevant studies have shown that the dietary fiber extracted from Lei bamboo shoots has a high content of soluble dietary fiber, which is a high-quality dietary fiber. In recent years, dietary fiber, as the seventh largest nutrient, has attracted much attention from the medical, food and nutrition circles, and its development and utilization in different fields will have a good application prospect....

Claims

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Application Information

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IPC IPC(8): A23L33/21A23L29/00A23L5/30
CPCA23V2002/00A23L5/30A23L29/06A23L33/21A23V2200/14A23V2200/30A23V2250/5116
Inventor 李璐黄亮苏玉
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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