Technical Data
Media
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Technical Data
Media
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Dextrose Tryptone Agar (Powder)
D3222-20
Microbiological Grade
Storage RT/4°C Shipping RT
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Components shown as g/liter
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Detection of thermophilic, aerobic organisms in foods. Description: Dextrose Tryptone Agar is recommended for the determination of mesophilic and thermophilic bacteria in sweetening agents used in frozen desserts. Bromcresol purple is used as a pH indicator. When isolating thermophilic bacteria use 55°C as a plating temperature. Storage and Stability: Store powdered media at 4°C. Opened bottles should be capped tightly. Protect it from moisture and light. Prepared media should be kept at 4°C and used within a short period of time. Directions: 1. Dissolve 30grams per liter of distilled/ deionized (DDI) water, heating with stirring until completely solubilized. 2. Dispense into appropriate containers, loosen caps and autoclave for 15 minutes at 121ºC (15psi) Storage:Store powdered media at RT. Opened bottles should be capped tightly and kept in a dark, low humidity environment. Prepared media should be kept at 4°C and used within a short period of time. Appearance: Light greenish-beige, homogeneous, free flowing powder. Solubility: Purple, clear to turbid. pH (25°C): 6.7±0.2 Microbiological Analysis: Bacillus coagulans ATCC 7050 Important Note: This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological. |
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