| A. Bacteriological Peptone (Hi-Media RM001; Enzymic hydrolysate of animal tissues) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Code | Source code | Manufacturing date/ date of opening | Expiry date | Condition of peptone | Colony visual characteristics (d2) | Colony growth (A600) | Pigmentation (A500 of supernatant) | ||
| A1 | EMML / PT | Feb. 2013/ Aug 2013 |
Feb. 2017 | Powder | Semi-fluidy, white; Light red centre | 0.883 ± 0.221 |
0.004 (low) | ||
| A2 | PHT / RS | May 2006 / NA | May 2011 | Slightly solidified | Fluidy; Deep red with white outline | 1.533 ± 0.012 |
0.061 (high) | ||
| A3 | EN/ MSR | July 2012 / just opened | July 2016 | Powder | Fluidy; red with white outline | 1.4097 ± 0.0770 |
0.063 (high) | ||
| A4 | EMML/ PT | Same as A1 but hydrated by loose capping | Feb. 2017 | Slightly hydrated | More fluidy and darker color than A1 | 0.960 ± 0.0551 |
0.007 (low) | ||
| B. Type-1 peptone (Hi Media RM667; Mixed enzymic hydrolysate of lean meat tissues) | |||||||||
| B1 | EMML/ PT | Oct 2013 | July 2017 | Powder | Deep red semi-fluidy; white outline | 1.594 ± 0.0231 |
0.120 (very high) | ||
| B2 | TCL/ JBM | Aug. 2010 | Aug. 2015 | Powder | Fluidy; cream-white; light red centre | 1.180 ± 0.0355 |
0.015 (Medium) | ||
| B3 | SS/SK | July 2010 | July 2015 | Powder | Deep red; fluidy; white outline | 1.482 ± 0.0417 |
0.098 (high) | ||
| B4 | TL/MM | NA | May 2007* | Slightly hydrated | Fluidy; cream-white; Crimson red centre | 1.331 ± 0.0110 |
0.074 (high) | ||
| C. Control. CPGA with A1 peptone; no TTC | Feb. 2013/ Aug. 2013 |
Feb. 2017 | Powder | Fluidy cream white | 1.238 ± 0.1067 |
-0.002 (none) | |||