Figure 1 Mean growth of Saccharomyces cerevisiae ATCC 26603in heat-stabilized defatted rice bran at high initial inoculation
Figure 2 Mean growth of Saccharomyces cerevisiae ATCC 26603in heat-stabilized defatted rice bran at low initial inoculum
rice bran sample |
moisture |
crude protein |
starch |
crude lipid |
total |
ash (%) |
soluble sugars |
total phenolics |
before |
9.4 |
18.1a |
13.9a |
3.1a |
36.1a |
15.9a |
1.7a |
8.4a |
after |
Same |
19.1a |
14.9a |
1.8b |
35.9a |
16.4a |
1.9a |
8.9a |
Table 1: Moisture, crude protein, starch, lipid, total dietary fiber, ash, soluble sugars, and total phenolic content of heat-stabilized defatted rice branbefore and after heat sterilization (121 oC, 30 min)a
aResults expressed on dry basis are the means and standard deviations of three replications. Mean values followed by same letter within columns are not significantly different (p> 0.05)
growth medium |
growth increase |
12 h incubation |
|
YM (control) |
1.6 ± 0.2a |
0% HDRB |
0.7 ± 0.3b |
2.5% HDRB |
1.3 ± 0.1a |
5% HDRB |
1.3 ± 0.1a |
7.5% HDRB |
1.5 ± 0.3a |
10% HDRB |
1.5 ± 0.3a |
15% HDRB |
1.6 ± 0.3a |
Growth increase (mean +stdev) Log CFU/mL of S. cerevisiaeATCC 26603 with high initial inoculum levela
aResults are the means and standard deviations of two replications. Mean values followed by same letter within columns are not significantly different (p> 0.05)
initial inoculum level |
sample media |
|||||
YM |
2.5% HDRB |
0% HDRB |
||||
maximum cell population |
growth increase |
maximum cell population |
growth increase |
maximum cell population |
growth increase |
|
high |
8.1 ± 0.3A |
1.6 ± 0.2a |
7.8 ± 0.2A |
1.3 ± 0.1a |
7.2 ± 0.2A |
0.7 ± 0.3b |
low |
7.8 ± 0.1B |
6.4 ± 0.1a |
7.2 ± 0.0A |
6.0 ± 0.0a |
1.7 ± 0.2B |
0.3 ± 0.2c |
Table 3: Comparison of maximum cell population and growth increase of S. cerevisiaeATCC 26603 (mean ±stdev) Log CFU/mL with high and low initial inoculum levela
aResults are the means and standard deviations of two replications. Mean values followed by same lowercase letters within row are not significantly different; mean values followed by same capitalized letter within column are not significantly different, (p> 0.05)