Method for optimizing loading way of solid-state fermentation substrate

A solid-state fermentation and substrate technology, applied in biochemical equipment and methods, measuring devices, microbial measurement/inspection, etc., can solve problems such as ignoring interaction effects, ignoring coupling phenomena, and not being able to reflect the overall effect of fermentation substrate physical properties

Inactive Publication Date: 2012-04-11
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Claims
  • Application Information

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Problems solved by technology

However, previous reports usually only focus on the influence of one or a few matrix physical properties on a certain transmission process (for example, only study the influence of matrix porosity on its air permeability), ignoring the interaction between various factors , and also ignores the coupling phenomenon between various transfer processes, the research results are relatively one-si

Method used

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  • Method for optimizing loading way of solid-state fermentation substrate
  • Method for optimizing loading way of solid-state fermentation substrate
  • Method for optimizing loading way of solid-state fermentation substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1 Trichoderma viride uses steam-exploded rice straw as the fermentation substrate to determine the thickness range of the substrate layer for solid-state fermentation

[0035] Trichoderma viride is the main production strain of cellulase produced by solid-state fermentation, and the fermentation substrate is lignocellulosic material. In this example, the steam-exploded rice straw is used as the fermentation substrate, and the numerical analysis platform is used to calculate the thickness range of the substrate layer and the ratio range of the substrate layer and the headspace size of the solid-state fermentation in a static tray. The steps are as follows:

[0036] Step 1: Measure the physical property parameters of the steam-exploded rice straw matrix, and form a parameter table as follows:

[0037]

[0038] Step 2: Determination of growth kinetic parameters of microbial strains, mainly including growth kinetic equation, biomass, specific growth rate, and spe...

Embodiment 2

[0045] Example 2 Aspergillus niger uses starch and bran as fermentation substrates to determine the thickness range of the substrate layer for solid-state fermentation

[0046] Aspergillus niger is the main production strain of α-acid amylase by solid-state fermentation. The fermentation substrate is 85% bran, 15% corn starch, and the ratio of material to water is 1:1. In this example, starch and bran are used as fermentation substrates, and a numerical analysis platform is used to calculate the thickness range of the matrix layer and the ratio range of the matrix layer to the headspace size. The steps are as follows:

[0047] Step 1: Measure the physical property parameters of the steam-exploded rice straw matrix, and form a parameter table as follows:

[0048]

[0049] Step 2: Determination of growth kinetic parameters of microbial strains, mainly including growth kinetic equation, biomass, specific growth rate, and specific growth amount;

[0050]

[0051]Step 3: Det...

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Abstract

The invention discloses a method for optimizing loading way of solid-state fermentation substrate, specially a heat and mass transfer numerical analysis system for solid-state fermentation and a physical parameter system for solid-state fermentation substrate, comprising: establishing a mass-heat-bioreactor coupling model for the solid-state fermentation substrate, combining with computational fluid dynamics software, forming a numerical analysis system for solid-state fermentation; measuring the physical parameter of the fermentation substrate, growth kinetics parameter of the production strain and the fermentation operating parameter; through above numerical analysis system, obtaining the gas, heat, and biomass distribution regularity in the substrate bed and in the surrounding environment, so as to further judge the better size and proportional range of the substrate bed and the surrounding environment. The analysis system can be used for optimizing loading way of solid-state fermentation substrate, which can help improve the production efficiency of solid-state fermentation and enlarge the engineering scale.

Description

technical field [0001] The patent of the invention belongs to the field of solid-state fermentation engineering control, and relates to a solid-state fermentation mass transfer and heat transfer numerical analysis system based on numerical simulation and a solid-state fermentation substrate physical property parameter system, which are used to calculate the charging size of the solid-state fermentation substrate and optimize the solid-state fermentation substrate Loading method. Background technique [0002] In today's society where the crises of resources, environment and energy are intensifying, solid-state fermentation has many advantages, such as low pollution, energy saving, water saving, and high product yield, compared with the more polluting liquid fermentation, so it is more timely. However, solid-state fermentation is difficult to achieve industrialization, and it cannot replace liquid-state fermentation in a short period of time. The main factor restricting the in...

Claims

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Application Information

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IPC IPC(8): C12Q1/02G01D21/02
Inventor 陈洪章段颖异
Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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