K Nn mK - Amecamex.org.mx

FSB1- 2004
Food Science and Biotechnology in Developing Countries
TABLE 2
EFFECT OF THE ADDITION OF ACETIC ACID AND ATMOSPHERE OF CO2 IN THE SHELF LIFE OF COAGULATED PLASMA
logarithm of
aeróbic
mesophilic of
stored
coagulated
plasma 7 days
14 day at 4ºC
logarithm of
aeróbic
mesophilic of
stored
coagulated
plasma 7 days
at 4ºC
Initial
logarithm of
aeróbic
mesophilic
of
coagulated
plasma
pH of plasma
coagulated
stored 14 days
at 4ºC
pH of plasma
coagulated
stored 7 days
at 4ºC
Initial pH of
coagulated
plasma
Atmosphere
of CO2
Concentration
glacial acetic
acid (%)
Time of
refrigeration of
the blood before
the separation
and clotting
(h)
48
0.0 no ND ND 7.40 ND 3.30 3.00
48
0.5 no ND ND 5.74 ND 2.00 0.00
48 0.0 si ND ND 7.46 ND 3.00 3.30
48 0.5 si ND ND 5.84 ND 0.00 0.00
67 0.0 no 8.54 7.20 7.48 2.60 3.00 2.60
67 0.5 no 4.98 6.18 5.89 2.30 2.00 2.00
67 0.0 si 8.54 7.49 7.55 2.60 2.48 2.60
67 0.5 si 4.98 6.18 6.14 2.30 1.70 1.00
Variation source Significance
Time of storage (TRASC) - - 0.0403 - 0.6717 0.4588
Concentration of acetic acid - - 0.0000 - 0.0328 0.0202
Atmosphere of CO2 - - 0.0816 - 0.1756 0.7766
ND = Not certain
All the counts of m.o. they are reported by gram of plasma.
Additionally, to the 3 and 6 months of storage at 5°C, it was determined aerobes mesophilic.
6