Method for producing bamboo shoot dietary fibers by using bamboo shoot processing waste and byproducts

A technology of bamboo shoot dietary fiber and dietary fiber powder, which is applied to the production of bamboo shoot dietary fiber by-products and the field of bamboo shoot processing waste, which can solve the problem of wall thickness, high lignified fiber content, low utilization rate of bamboo shoot processing, rough tissue structure, etc. problems, to achieve the effect of stable product quality, high yield and simple operation

Inactive Publication Date: 2012-03-14
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the bamboo shoot processing process, the utilization rate of bamboo shoot processing is not high, and a large amount of fresh bamboo shoot processing waste and by-products such as bamboo shoot heads, bamboo shoot shells, bamboo shoot nodes, bamboo shoot clothing, and bamboo shoot processing scraps are produced, rot and mildew, and serious Harm the ecolog

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Bamboo head pretreatment: reclaim the fresh bamboo shoot head, wash, dry, pulverize, and make the moisture content of the raw material powder after processing be 10-30%, set aside.

[0021] (2) Extrusion modification and activation: Put the processed bamboo shoot raw materials into a twin-screw extruder, control the extrusion temperature to 170° C., and perform extrusion activation under the conditions of extrusion pressure 5.0 MPa.

[0022] (3) Pulverization: pulverize with a pulverizer, so that all pulverized materials can pass through more than 80 mesh sieves.

[0023] (4) The obtained modified bamboo shoot dietary fiber powder is analyzed and determined, and the total dietary fiber content is more than 40%, the soluble dietary fiber reaches 4.8%, and the insoluble dietary fiber reaches 36.7%.

Embodiment 2

[0025] (1) Bamboo shoot shell pretreatment: reclaim fresh bamboo shoot shoot shell, wash, dry, pulverize, and make the moisture content of the raw material powder after processing be 10-30%, set aside.

[0026] (2) Extrusion modification and activation: Put the processed bamboo shoot shell raw materials into a twin-screw extruder, control the extrusion temperature to 150° C., and perform extrusion activation under the conditions of extrusion pressure 5.5 MPa.

[0027] (3) Pulverization: use a pulverizer to pulverize, so that all pulverized materials can pass through a 60-mesh sieve or more.

[0028] (4) The obtained modified bamboo shoot shell dietary fiber powder is analyzed and determined, and the total dietary fiber content is more than 40%, the soluble dietary fiber reaches 3.6%, and the insoluble dietary fiber reaches 39.8%.

Embodiment 3

[0030] (1) Pretreatment of bamboo shoots: reclaim fresh bamboo shoots, wash, dry, and pulverize, and make the moisture content of the processed raw material powder 10-30%, and set aside.

[0031] (2) Extrusion modification and activation: Put the processed bamboo shoot clothing raw materials into a twin-screw extruder, control the extrusion temperature to 160° C., and perform extrusion activation under the conditions of extrusion pressure 5.0 MPa.

[0032] (3) Pulverization: pulverize with a pulverizer, so that all pulverized materials can pass through more than 80 mesh sieves.

[0033] (4) The obtained modified bamboo shoot clothing dietary fiber powder is analyzed and determined, and the total dietary fiber content is more than 45%, the soluble dietary fiber reaches 8.1%, and the insoluble dietary fiber reaches 41.01%.

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Abstract

The invention discloses a technique for preparing functional dietary fibers by using bamboo shoot processing waste and byproducts and the like as raw materials. The method comprises the following steps: firstly, recovering fresh bamboo shoot processing waste and byproducts, including bamboo shoot tips, bamboo shoot shells, bamboo shoot joints, bamboo shoot coats and bamboo shoot processing leftovers, cleaning, drying, crushing, keeping the water content in the treated raw material powder between 10 and 30 percent, pressing, activating, crushing and obtaining bamboo shoot dietary fibers in bamboo shoot tips, bamboo shoot shells and bamboo shoot joints. The technique disclosed by the invention is simple and convenient, the production cost is low, the product quality is stable, and industrial production can be realized easily. The water retaining capacity and expanding capacity of the obtained bamboo shoot dietary fibers are much advantageous over common dietary fiber products, the content of soluble dietary fibers is increased, and a physical effect can be better played. The bamboo shoot dietary fibers can serve as a dietary fiber supplying agent, functional food and the like, the economic value of the bamboo shoots can be obtained, and the comprehensive utilization of bamboo shoot resource can be realized.

Description

1. Technical field [0001] The invention relates to a production method of dietary fiber, in particular to a method for producing bamboo shoot dietary fiber by using bamboo shoot processing waste and by-products. 2. Technical background [0002] Dietary fiber is mainly polysaccharides and lignin that cannot be digested and absorbed by the human body, and is called the "seventh largest nutrient". Studies have shown that dietary fiber has very important physiological functions for human health. Dietary fiber can be divided into soluble dietary fiber (Soluble dietary fiber, SDF) and insoluble dietary fiber (Insoluble dietary fiber, IDF) according to its water solubility. SDF has the functions of lowering human serum cholesterol, preventing gallstones, diabetes, hypertension and heart disease, etc. effect; while IDF has a good effect on preventing obesity, constipation, and intestinal cancer. [0003] Bamboo shoots are a kind of traditional food that is loved by people. It has ...

Claims

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Application Information

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IPC IPC(8): A23L1/28A23L1/212A23L1/308A23L19/00
Inventor 毛建卫葛青平丽娟黄俊
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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