SẢN PHẨM NỔI BẬT
Recent developments in culture media have given rise to the use of chromogenic substrates as a means of differentiating bacteria
particularly among the coliform group of organisms. This is one such medium and has been developed as a selective medium for the isolation and enumeration of Escherichia coli without the need for membranes or pre-incubation. Based on the formulation of Tryptone Bile Agar it incorporates a chromogenic substrate, X-Glucuronide, to detect the ß-glucuronidase enzyme which is specific for the majority of E. coli strains. Approximately, 3-4% of E. coli are glucuronidase negative including E. coli O157.(1) The advantage of the chromogenic substrate is that the reaction is concentrated within the colony resulting in distinctive blue/green colonies of E. coli while the other coliforms produce cream colonies.
The tryptone provides the required carbon, nitrogen and vitamins. Bile salts No.3 is a selective agent against Gram-positive bacteria. X-glucuronide is a chromogenic substrate. Agar is solidifying agent.
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CompactDry™ is a ready-to-use dehydrated culture media system that reduces the time needed to perform everyday microbial testing on food, cannabis, meat, cosmetics, raw materials, and more. Simply add 1ml of the prepared sample to the center of the plate. The sample will self-defuse and rehydrate media fully on its own. No stamping or spreading is needed.
CompactDry™TCR is a method recommended for the determination of total aerobic bacterial counts. Plates are AOAC PTM 082201 validated and is measurable after only 24 hours of incubation.
The benefits are easy to spot:
Each sleeve contains 4 connected plates that can be easily separated to support a variety of dilution scenarios.
- Rapid results in just 24 hours.
- Dye indicator gives enumerated results
- CompactDry™ is room temperature stable. Competitive products require refrigerated storage.
- Rigid plate design is easy to label, manipulate, and stack.
- Self-diffusing media does not require stamping or spreading.
- Plate headspace allows for three-dimensional colony growth and colony picking for subculture and ID.
- Plate design assures sample containment and eliminates possible sample leakage seen with other film-based products.
- All colonies are easy to read from center to rim.
- Long shelf-life, room temperature storage.
Liên hệ mua hàng:
Công ty Labcare Việt Nam – chuyên cung cấp, phân phối Môi trường nuôi cấy vi sinh, test sinh hóa, kháng huyết thanh, hóa chất, dụng cụ, thiết bị, vật tư tiêu hao.
Hotline: 0938976508
Email: info@labcare.vn
Website: labcare.vn
Alicyclobacillus acidoterrestris is a gram-positive, spore-forming bacillus that occurs widely in nature. This specie has been studied substantially after the incident of turbidity of transparent apple juice in 1984. The Alicyclobacillus genus bacteria, which peculiarly grows under relatively high temperatures and acid conditions, is called Thermo-acidophilic Bacilli (TAB) [1, 2, 3].
TAB are not destroyed by pasteurization and may remain in final products of fabricated food and beverages. TAB are not known to be harmful to health but are known to degrade the quality of juices and other products by producing guaiacol, causing off-flavor. Even without the off-flavor problem, product values may be degraded by slight deterioration during distribution.
It is very difficult to avoid contamination of TAB, which are common in soil. Fortunately, A. acidocaldarius and other main species that cause contamination are known to be harmless, and damage caused by TAB can be minimized by monitoring the contamination of A. acidoterrestris, which is known to be harmful. These species, however, cannot be detected by usual isolation culture methods as they grow only under acidic and relatively high temperature conditions.
Because of frequent occurrence of fruit juice deterioration incidents in Europe and other regions, Japan Fruit Juice Association developed and publicized a unified test method for TAB in March 2003 [4]. To allow easy performance of this test, we developed a kit that differentiates A. acidoterrestris in terms of productivity of guaiacol, which causes off-flavor.
Our Standard Kit is a venerable classic. Versatile, yet compact. GlowBarLED Lamp feels good in your hand thus allowing illumination of various areas. Kit includes: GlowBarLED rechargeable lamp with power supply and recharging cord, GlitterBug Potion (240ml/8oz), How to Wash Poster (GB132), two sheets of GlitterBug Reward stickers (ST.GB), two Hand Brushes and ten Handwash Report forms.
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