Home > Products > Microorganism detecting products > Mold and yeast detecting board
Mold and yeast detecting board
- 0 Set / Sets per Month
- T/T L/C D/P D/A
- 7 days
Product Details
Place of Origin: | China | Model Number: | BM217 |
Product Description
1. Principle & application scope
Molds and yeasts widely exist in air, water and soil. Most of them are harmless, but some are harmful for human health, such as aspergillus flavus, which can secrete a strong carcinogen. Molds can also stimulate human stomach and intestine, cause food poisoning and injure liver. Mold and yeast detecting board which contains nutrient culture medium, bibulous gel and enzyme-chromogenic reagent can greatly save the time of medium preparation, disinfection and cleaning. It is easy to use and very convenient for detection of molds and yeasts in all kind of food and drinking water. It is suitable for institutes of food hygiene inspection and food factories.
Executive standard: National Food Safety Standard, Food Microbiological Examination, Enumeration of molds and yeasts (GB 4789.15)
2. Using method
2.1 Sample preparation: Prepare the 1:10 solution by placing 25g or 25mL sample into 225mL sterile water and shaking evenly. Then prepare 1:100 solution by suck 1mL solution (1:10) into 9mL sterile water. According to the pollution level of sample, prepare solutions of other dilution ratios if necessary.
2.2 Inoculation: Select 2-3 appropriate dilution ratios to do the test for ordinary food, while for some liquid samples which has little bacteria, directly suck raw liquid to do the test. Place the detecting board on a flat experiment table; uncover the upper film. Suck 1mL solution with sterile pipette, and then drop it into the detecting board. Cover the film gently and shake the detecting board horizontally to let the solution be adsorbed by filter paper. Stand for 10s until the solution is adsorbed completely. Inoculate two detecting boards for each sample solution and do a blank control.
2.3 Culture: Superimpose the detecting board; place them upside down in the incubator in the temperature of 29℃±1℃ for 48-72 hours.
3. Result
Mold and yeast will show blue spots after growing on the detecting board, mold colony is radial and relatively larger than yeast, while yeast colony is small and smooth. Select the detecting boards of which the colony quantity is between 10CFU and 150CFU to do the counting.
4. Counting method & report
4.1 Select the detecting boards of which the colony quantity is between 10CFU and 150CFU to do the counting. Calculate the average value and then multiply it by the corresponding dilution multiple. (see Example 1)
4.2 If the colony average values of all the dilution ratio detecting boards are more than 150CFU, select the maximum dilution multiple detecting boards to do the counting, then multiply the corresponding dilution multiple as report data, other detecting boards can be recorded as TNTC (too numerous to count). (see Example 2)
4.3 If the colony average values of all the dilution ratio detecting boards are less than 10CFU, calculate the average value of the minimum dilution multiple detecting boards and multiply the dilution multiple as report data. (see Example 3)
4.4 If there is not any mold and yeast growing on all the detecting boards, report it in terms of less than one multiply the minimum dilution multiple.(see Example 4)
5. Additional explanatory notes
5.1 Mold and yeast widely spread in the air in the form of spore. It is demanded that mold and yeast cannot be detected for most samples; therefore, it is essential to operate carefully when using mold and yeast detecting board. All the sampling tools, dilute water, sucker and other utensils should be thoroughly disinfected. In order to avoid air flows during the inoculation, inoculate as quickly as possible. It’s better to make two blank controls with sterilized saline to avoid the false positive results.
Dispose used detecting boards according to the biology safety waste treatment rule, because there are live bacteria on them.
Contact Us
- Guangdong Dayuan Oasis Food Safety Technology Co.,Ltd
- Contact nameMs Sharon Shaw
- Phone86-20-32096888
- Address9/F, NO. 7, Kehui Street 1 ,Kehui Development Center, Science Avenue, Guangzhou Science City, Luogan Baoji,Shaanxi
colloidal gold rapid detection kit | Detection kit | Microorganism detecting products | Pesticide residue detecting product |
Testing instrument |
- French fries production line
- Dates plam cleaning and processing line
- New twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- Different capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- 2024 Factory Square Round High quality New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- Popular 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- 2024 Square Round High quality New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- 2024 new design twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- 2024 popular high quality twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- 2024 popular twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- Factory price twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- High quality New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- Pet Chewing Food Processing Line for Exercise dog teeth
- 2024 Popular High Quality Various flavors twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- 2024 Popular Fried New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- 2024 Fried New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- Popular High Quality Various flavors twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- Fried New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- New Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- High Quality Various flavors twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- Popular Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
- Various flavors hot sale twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- Various flavors twin screw extruder corn flakes extruding making machine breakfast cereal corn flakes production line
- 2024 New Design Different Capacity 11000pcs/8h 20000pcs/8h Instant Noodle Making Machine Fried Instant Noodles Pasta Production Line
Popular Searches
Find Similar Products By Category
- Machinery > Food & Beverage Machinery > Other Food Processing Machinery
- Buy on GoldSupplier.com
- How to Buy
- Browse by Catagories
- Browse by Hot Regoins
- Private Sourcing Events
- Sell on GoldSupplier.com
- How to Sell
- Post Products
- Manage Products
- Manage Groups
- Services
- Latest Sourcing Requests
- Product Update
- Companies of Today
- GoldSupplier.com Mobile Site
- B2B Articles
- About
- About Us
- Link to Us
- Contact Us
- Sitemap
- Please Enter your Email Address
- Please enter the content for your inquiry.
We will find the most reliable suppliers for you according to your description.
Send Now-
Ms Sharon Shaw
Welcome to my shop! Glad to serve you!Please send your question!
Your message has exceeded the limit.
Your message has exceeded the limit.
-
-
Your inquiry content must be between 20 to 5000 characters.Send Now.
-
Please input the mailbox.
-