Comparison of technical parameters of BD 214010 purified agar and Spanish pronadisa bacteriological agar
US BD 214010 Agar, Bacto purified agar powder: curing reagent, high purity agar, to remove external impurities, dye components and salts, for solid medium, usually 1-2%; for dynamic test and anaerobic The growth of bacteria and microaerobic bacteria is usually 0.05-0.5%.
The main advantage of the Spanish pronadisa bacteriological agar powder is that there is no inhibitor and it does not interfere with the growth of microorganisms. It has good transparency, resolubility and high strength. The biological properties of each batch are thoroughly tested and are suitable for the preparation of most media to ensure proper growth characteristics of the bacteria and no inhibitors. It is used in concentrations from 1. 2% to 1.6%. The general applicable concentration is 1.2%-1.6%.
Technical parameter comparison
| Project brand | Spanish pronadisa LB1802 Lot number: A00750 | US BD Bacto 214010 See BD official website typical analysis |
| Moisture | 9.30% | 17.30% |
| Ash | 4.30% | 4.30% |
| Gel strength (g/cm2) | 740 | 600 |
| Melting point (1.5%) °C | 88.8 | 88 |
| Gel point (1.5%) °C | 35.3 | 35 |
| Transparency (1.5%) | 4.5NTU | 4.3NTU |
| PH value | 6.9 | 6.5 |
1. Water contrast BD Bacto214010 purified agar has higher water content than Spanish bacteriological agar powder. Although the high water content of agar powder does not have a great effect on bacterial growth, excessive moisture is not conducive to long-term preservation of agar.
2, gel strength compared to the strength of Spanish bacteriological agar higher than the United States BD Bacto214010 purified agar, the agar powder's high gel strength can be reduced to save costs.
3. PH value compared with Spanish bacteriological agar has higher pH than BD Bacto214010 purified agar agar. Agar powder is stable under neutral or alkaline conditions, acidity is easy to degrade, especially in the state of high moisture content, agar Gel strength accelerates degradation as the storage time increases.
4, transparency comparison US BD Bacto214010 purified agar has slightly better transparency than Spanish bacteriological agar powder.
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