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Detection method for betel nut fiber softness

A measurement method and technology of softness, applied in the direction of measuring device, strength characteristics, and using stable bending force to test the strength of materials, etc., can solve the problems that the softening effect cannot be formed into a unified evaluation standard

Inactive Publication Date: 2017-01-11
INST OF PROCESSING & DESIGN OF AROPROD OF HAINAN ACADEMY OF AGRI SCI
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Problems solved by technology

[0004] At present, there are many softening methods in the betel nut processing industry, but since there are no scientific detection methods and standardized quantitative indicators to evaluate its softening effect, it can only be evaluated by the chewing senses of relevant technical personnel. There are large differences in the evaluation of chewing sensory, and it is impossible to form a unified evaluation standard for softening effect

Method used

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  • Detection method for betel nut fiber softness
  • Detection method for betel nut fiber softness
  • Detection method for betel nut fiber softness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1 to Embodiment 7

[0036] The longitudinal cutting width of dried betel nut is 5.0mm, 6.0mm, 7.0mm, 8.0mm, 9.0mm, 10.0mm and 11.0mm. The central part of the quasi-betel nut sample is pressed down, and the measurement parameters of the fiber softness are measured by the three-point bending method. The final speed is 30mm / min, and the speed during the test is 60mm / min, and the pressing distance of the probe is 4.0mm. The experiment was repeated 3 times, and the average value was taken.

[0037] Table 1 shows the elastic modulus calculated by the formula based on the maximum displacement in the elastic stage and the corresponding maximum stress.

[0038] Table 1

[0039]

[0040] Origin8.5 was used for data analysis and figure 2 , to calculate the standard error. Significant difference analysis was performed using SPSS 19.0 software. After analyzing the elastic modulus of different sample widths by Spss software, it was found that there was no significant difference between the elastic mod...

Embodiment 13

[0048] This method can also be used for the mensuration of the softness of betel nut fresh fruit fiber. In embodiment 13, the fresh betel nut fruit with consistent maturity is selected to be longitudinally cut into a sample with a width of 9.0 mm, and the concave surface of the betel nut sample is placed on the three-point bending test. Between the supporting vertical walls of the device, the supporting span is 20.0 mm. The softness of the fiber is measured by the three-point bending method. The probe is aligned with the center of the betel nut sample and pressed down. The initial force of the probe is 1N, and the speed before and after the test is 30mm / min, test speed 60mm / min, probe pressing distance 4.0mm. The experiment corresponding to each embodiment was repeated 3 times, and the average value was obtained.

[0049] Table 3 shows the elastic modulus value calculated by the formula based on the maximum displacement in the elastic stage and the corresponding maximum stress...

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Abstract

The invention belongs to the agricultural products physico-mechanic detection field, and relates to a detection method for betel nut fiber softness, slitting the areca nut into sample along with the fiber texture and based on the center axis, connecting the texture analyzer with three point bending testing apparatus, putting the betel nut between the supporting vertical walls of three point bending testing apparatus with the concave surface facing up, and adopting three point method for testing, using the formula to calculate the elasticity modulus of betel nut fiber layer, taking elasticity modulus as the measurement criteria of sample softness. The detection method for betel nut fiber softness adopts elasticity modulus as the measurement criteria of sample softness and standard three point testing method as the detection method, which solves the defect of taking the traditional mouth chewing sensory for softening effect evaluation, provides scientific qualitative detection method for betel nut production, processing and quality assessment, and lays a significant theoretical basis for the development of betel nut processing subject.

Description

technical field [0001] The invention belongs to the field of mechanical detection of physical properties of agricultural products, and relates to a method for measuring the softness of fibers, in particular to a method for measuring the softness of areca nut fibers. Background technique [0002] Areca catechu (Areca catechu L) is the mature fruit of Areca catechu in the palm family. It contains a variety of nutrients and beneficial substances needed by the human body. It is one of the four major southern medicines in my country. my country is one of the main producing areas of betel nuts in the world, and the planting area and output of areca nuts in Hainan Province account for more than 90% of the total amount in the whole country (excluding Taiwan). In some countries in Africa, Southeast Asia and my country's Hunan, Hainan, Guangdong, Taiwan and other places, people have the habit of chewing betel nuts. Chewing betel nut can refresh the brain, produce comfort and euphoria...

Claims

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Application Information

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IPC IPC(8): G01N3/20
CPCG01N3/20G01N2203/0023
Inventor 康效宁吉建邦
Owner INST OF PROCESSING & DESIGN OF AROPROD OF HAINAN ACADEMY OF AGRI SCI
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