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
dietary
 fiber
(%)

ash (%)

soluble sugars
(%)

total phenolics
(mg/g)

before

9.4
(± 0.2)

18.1a
(± 0.4)

13.9a
(± 0.9)

3.1a
(± 0.0)

36.1a
(± 0.1)

15.9a
(± 0.2)

1.7a
(± 0.1)

8.4a
(± 0.0)

after

Same

19.1a
(± 0.7)

14.9a
(± 0.8)

1.8b
(± 0.4)

35.9a
(± 0.9)

16.4a
(± 0.2)

1.9a
(± 0.2)

8.9a
(± 0.1)

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
(6.5 Log CFU/mL)

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
(1.5 Log CFU/mL)

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)