A method for superfine pulverization of dietary fiber of bamboo shoots

A bamboo shoot dietary fiber, ultra-fine grinding technology, applied in the function of food ingredients, food ingredients, food science and other directions, can solve the problems of rough taste of dietary fiber, and achieve the effects of high soluble dietary fiber content, improved taste, and enhanced ability

Active Publication Date: 2020-12-29
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • A method for superfine pulverization of dietary fiber of bamboo shoots
  • A method for superfine pulverization of dietary fiber of bamboo shoots
  • A method for superfine pulverization of dietary fiber of bamboo shoots

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Preparation of dietary fiber by compound enzymatic hydrolysis. The bamboo shoot powder and pure water were mixed uniformly at the ratio of material to liquid 1:15, gelatinized at 95°C and then cooled, followed by adding 0.3% α-amylase (adjust pH to 6.0, 70°C, 1h), 0.45% saccharification enzyme (adjust pH to 4) .2, 60°C, 1h) and 0.6% protease (adjust pH to 7.0, 55°C, 2h), then inactivate the enzyme at 100°C for 10min, wash with water until neutral, and dry in an oven at 50°C for later use.

[0025] 2) Pulverization of dietary fiber of bamboo shoots. The prepared dietary fiber of bamboo shoots is placed in 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 pulverized dietary fiber of bamboo shoots. The structure of dietary fiber was characterized by laser particle size analyzer, Fourier transform infrared spectrometer, X-ray diffraction, synchronous ther...

Embodiment 2

[0029] 1) Preparation of dietary fiber by compound enzymatic hydrolysis. The bamboo shoot powder and pure water were mixed uniformly at a ratio of 1:15, gelatinized at 95°C and cooled, and then added 0.3% α-amylase (adjusted to pH 6.0, 70°C, 1h), 0.45% saccharification enzyme (adjusted to pH 4). .2, 60°C, 1h) and 0.6% protease (adjust pH to 7.0, 55°C, 2h), then inactivate the enzyme at 100°C for 10min, wash with water until neutral, and dry in an oven at 50°C for later use.

[0030] 2) Pulverization of dietary fiber of bamboo shoots. The prepared dietary fiber of bamboo shoots was pulverized with a ZKY-303BS ultra-fine pulverizer, and the time was about 1 hour, and the air flow was adjusted for classification and collection.

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

Embodiment 3

[0034] 1) Preparation of dietary fiber by compound enzymatic hydrolysis. The bamboo shoot powder and pure water were mixed uniformly at a ratio of 1:15, gelatinized at 95°C and cooled, and then added 0.3% α-amylase (adjusted to pH 6.0, 70°C, 1h), 0.45% saccharification enzyme (adjusted to pH 4). .2, 60℃, 1h) and 0.6% protease (adjust pH to 7.0, 55℃, 2h), then 100℃, 10min enzyme inactivation treatment, washed with water until neutral, dried in an oven at 50℃ for later use.

[0035] 2) Pulverization of dietary fiber of bamboo shoots. The prepared bamboo shoots dietary fiber is processed by Micron Jet MillPilot airflow pulverization and ultrafine pulverization (parameter pulverization pressure 10bar, pulverization speed 8r / min), time is about 1 hour, air classification is processed, and different collectors collect the dietary fibers of different particle sizes. .

[0036] 3) Characterize the structure of the ultramicronized dietary fiber of bamboo shoots. The structure of die...

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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] Bamboo shoots are a high-fiber, high-protein, low-fat natural green healthy food, and 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-product in the processing of such products, the residue of bamboo shoots, is discarded at will, causing not only environmental pollution but also a waste of resources. Relevant studies have shown that the dietary fiber extracted from 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 received much attention from the medical, food, and nutrition circles, and its development and utilization in different fields will have good application prospects. At p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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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