The microbial growth curve is a curve plotted with the number of microorganisms (the number of viable bacteria or the weight of bacteria) on the vertical axis and the incubation time on the horizontal axis. Generally speaking, the change in the weight of microorganisms (bacteria) can reflect the growth process more essentially than the change in their number. By measuring the growth curve of microorganisms, the growth patterns of various bacteria can be understood, which is of great guiding significance for both scientific research and production.
Comparative Advantage
Traditional Turbidimetric Method (Determination of a Single Microbial Strain)
In the process of using the traditional turbidimetric method for the determination of a single microbial strain:
Seed Liquid Preparation Stage: Select 1 vial of bacterial strain and inoculate it into the culture medium. Subsequently, conduct a culture for as long as 18 hours. The resulting culture liquid through this process serves as the seed culture liquid. This step is the starting point of the entire experiment and provides the initial strain for subsequent cultivation.
Labeling and Numbering Step: Meticulously prepare 48 containers, which can be either Erlenmeyer flasks or test tubes, and the interiors of which are filled with sterilized culture medium. For the purpose of subsequent differentiation and data recording, number them from 0 to 48 successively. This numbering system is helpful for accurately tracking the growth situation of each sample.
Inoculation and Cultivation Process: Aspirate 1 mL from the prepared seed culture liquid and add it respectively to the Erlenmeyer flasks or test tubes numbered from 0 to 48. Then, place these inoculated containers in a constant - temperature environment of 37 °C and conduct shaking cultivation to create suitable conditions for the growth of the microbial strain and promote its reproduction.
Growth Measurement Step: During the cultivation process, every half an hour, take out the corresponding one among the numerous Erlenmeyer flasks or test tubes. Pour the culture liquid therein into a cuvette, and then place the cuvette in a spectrophotometer to measure its OD value. The OD value is an important indicator for measuring the growth density of microorganisms. Through regular measurement, key data during the growth process of the microbial strain can be obtained.
Experimental Result Analysis Part: Finally, input the OD values obtained from each measurement into specialized software. With the data analysis and graphing functions of the software, draw the growth curve of the microbial strain to visually present the growth law of the strain during the entire cultivation process and provide a basis for further analysis.
Automatic Microbial Growth Curve Analyzer (Simultaneous Determination of 1 - 192 Microbial Strains)
For the fully - automatic microbial growth curve analyzer, a method capable of simultaneously determining 1 - 192 microbial strains:
Seed Liquid Preparation Aspect: Take 1 - 192 vials of bacterial strains at one time and inoculate them all into the culture medium. Cultivate them for 18 hours in the same way to make the seed culture liquid. This way of simultaneously processing a large number of microbial strains reflects the high - throughput characteristic of this method.
Inoculation Operation: Add the 1 - 192 microbial solutions prepared above to a 48 - well plate respectively, and then place the 48 - well plate into the GCA - 2000 instrument. This process makes use of the standardized experimental tool of the 48 - well plate and the advanced GCA - 2000 instrument to prepare for subsequent automated determination.
Automated Result Analysis Process: Every half an hour, the GCA - 2000 instrument will automatically measure the 1 - 192 sample microbial solutions in the 48 - well plate. Moreover, simultaneously during the measurement, the instrument can draw the growth curves of various microbial strains in real - time. Such automated and real - time monitoring functions greatly improve the experimental efficiency and the timeliness of data, enabling the rapid acquisition of growth information of a large number of microbial strains and providing more comprehensive data support for scientific research and production applications.
Through the above comparison, it can be clearly seen that the fully - automatic microbial growth curve analyzer has significant advantages over the traditional turbidimetric method in terms of the ability to handle multiple microbial strains, the degree of automation, and efficiency. It is especially applicable to scenarios where the growth situations of a large number of microbial strains need to be analyzed simultaneously, while the traditional turbidimetric method still has its application value in the fine determination of a single microbial strain.
Main Advantages
Time - saving
The automatic microbial growth curve analyzer exhibits outstanding performance in terms of time efficiency. It can monitor as many as 192 microbial samples at a time, and this high-throughput feature greatly improves work efficiency. During the monitoring process, a unique growth curve can be generated for each sample by the automatic microbial growth curve analyzer. Compared with traditional methods, this large-scale simultaneous monitoring capability of the automatic microbial growth curve analyzer avoids the substantial amount of time consumed in processing samples one by one, enabling researchers to obtain a large amount of experimental data within a shorter period, thus saving precious time for subsequent research.
Labor - saving
The advantage of being labor - saving is mainly reflected in the automation of the detection process. It has achieved the function of fully - automatic online timed detection, which means that the entire detection process does not require manual timed sampling. Traditional detection methods often require researchers to conduct sampling operations manually at specific time points, which is not only time - consuming and labor - intensive but also prone to sampling errors due to human factors. This automated detection mode liberates researchers from the cumbersome sampling work, reduces labor input, and also improves the accuracy and stability of sampling.
Cost - saving
From a cost perspective, this method has significant economic benefits. By saving the consumption of reagents, consumables, etc., it effectively reduces experimental costs. In large - scale microbial experiments, the cost of reagents and consumables is often a significant expense. This new method or equipment may reduce the demand for reagents and consumables by optimizing the detection process and reducing unnecessary operational steps, thereby saving a large amount of funds for the laboratory during the long - term experimental process and improving resource utilization efficiency.
Accuracy
Accuracy is another crucial advantage of this method. It can simultaneously analyze and compare the growth curves of up to 192 microorganisms. This large - scale synchronous analysis capability enables different microbial samples to be tested and analyzed under the same conditions. During this process, various influencing factors between different batches, such as differences in the quality of reagents in different batches and minor changes in environmental conditions, can be effectively excluded. This ensures the accuracy and reliability of experimental results, providing a solid basis for decision - making based on microbial growth data in scientific research and production.
Application Field
The automatic microbial growth curve analyzer is applied in the following fields:
1.Influences of Different Inorganic and Organic Substances on 2.Microbial Growth
3.Screening of Superior Microbial Strains
4.Research on Microbial Mechanisms
5.Analysis of Growth Kinetic Curves
6.Determination of Food Safety Microorganisms
7.Research and Development of Antimicrobial Agents
8.Improvement of Microbial Fermentation Processes
9.Determination of Endotoxins
10.Synthetic Biology
11.Screening of Culture Media
12.Detection of Pathogenic Bacteria
Technical Parameters
|
Model |
GCA-2000H |
GCA-2000R |
|
LED Light Source Lifespan |
25,000 hours |
25,000 hours |
|
Number of Channels |
192 |
192 |
|
Types of Adaptable Microorganisms |
Anaerobic and Aerobic Microorganisms |
Anaerobic and Aerobic Microorganisms |
|
Detectable Time Interval |
Adjustable from 5 to 360 minutes |
4-60℃ |
|
OD600 Range |
0-5 |
0-5 |
Profession team
The production facilities and experimental platforms of Yisite Scientific Instruments Co., Ltd. possess the following advantages:
1. Complete Production Facilities:
Efficient Production Capacity: The company is equipped with advanced production equipment and automated production lines. This not only helps to reduce labor costs but also enhances production efficiency, ensuring that it can meet the demands of large-scale orders and complete the production tasks of products quickly and with high quality.
Stability of Product Quality Assurance: The advanced production equipment and automated production processes can effectively control various parameters in the production process, reducing the interference of human factors on the production process. Thus, the stability and consistency of product quality are guaranteed, making the scientific instruments produced by the company have reliable performance.
2. Advanced Optical Detection Experimental Platform:
High-Precision Experimental Conditions: This experimental platform provides core support for the company's technological research and development as well as product quality inspection. It has high-precision experimental conditions that can meet the precise measurement and testing requirements of various parameters in the process of scientific instrument research and development, helping researchers to conduct in-depth research and optimize product performance.
Promotion of Technological Innovation: The high-precision experimental platform provides a favorable experimental environment for researchers, inspiring their innovative thinking, which is conducive to carrying out new technological research and product development, and promoting the company to continuously achieve technological breakthroughs in the field of scientific instruments and maintain its leading position in the industry.
Guarantee of Product Optical Performance: For scientific instrument products involving optical imaging technology, this experimental platform can conduct strict inspection and optimization on the optical performance of the products, ensuring that the products reach an excellent level in terms of optical performance and meet the high requirements of customers in optical imaging.
3. Overall Synergistic Advantages:
R & D and Inspection Support for the Combination of Hardware and Software: The close combination of production facilities and experimental platforms provides a strong guarantee for the company's products to form an overall solution integrating hardware and software. During the research and development process, the collaborative debugging and optimization of hardware equipment and software systems can be conveniently carried out; during the quality inspection stage, the overall performance after the combination of hardware and software can be comprehensively inspected to ensure the integrity and reliability of the products.
Support for Multi-Field Applications: This advantage enables the company's products and solutions to be widely applied in various fields such as biomedical, food safety, ecological environment, and basic research, meeting the diverse needs of customers in different fields, and being able to carry out customized research and development and production according to the characteristics and requirements of different fields.
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