1374
Results and Discussion
During the study, 6 subjects were lost follow-up, 3 subjects of brown rice group and 3 subjects
of white rice group because of inconvenience. So, 72 subjects (36 of brown rice group and 36 of white
rice group) were completed at week 24. Baseline characteristics were presented in Table 2 which
showed no significant differences for anthropometric and biochemical assessment between two
groups. However, total cholesterol and LDL-cholesterol of white rice group were significantly higher
than brown rice group but they were in normal ranges.
Table 2
Comparison between white rice (WR) and Sangyod Phattalong brown rice (SYBR) groups at Wk0
Parameters
Unit
WR (n = 39)
SYBR (n =39)
Q WBMVF
mean
SD
mean
SD
Age
year
58.3
10.4
57.9
9.7
NS
BMI
kg/m
2
27.8
3.7
27.7
4.0
NS
Serum total ORAC
umolesTE/ml 11.87
1.54
11.39
1.33
NS
Hydrophilic ORAC
umolesTE/ml 7.67
1.01
7.29
1.06
NS
Lipophilic ORAC
umolesTE/ml 4.26
0.64
4.08
0.43
NS
Serum hs-CRP
*
mg/L
2.29
0.3, 50.7
2.49
0.3, 40.8
NS
Serum total cholesterol
mg/dL
193.7
51.2
170.2
35.6
0.021
Serum LDL- cholesterol
mg/dL
122.9
37.2
105.9
29.0
0.028
Serum HDL- cholesterol
mg/dL
53.5
14.2
49.5
14.1
NS
Serum Triglycerides
mg/dL
157.4
185.2
121.5
62.3
NS
*Data were expressed as geometric mean, min - max
Table 3 showed that SYBR group had mean values of serum total ORAC (both hydrophilic and
lipophilic ORAC) gradually and significantly increased from week 0 which compliance with the
significantly decrease of mean level of hs-CRP
at week 24 compared to wk0 but there were no
significant differences of both serum total ORAC and hs-CRP in white rice group throughout 24 weeks,
although the mean lipophilic ORAC at wk16 was significantly increased. Results showed that SYBR
group had mean values of ORAC at week 8, 16 and 24 significantly higher than white rice group in the
same visits, although they were similar at baseline.
The improvement of serum ORAC and CRP might be explained by higher intake of important
phytonutrients from cooked Sangyod brown rice intake which was on average 267 g/day, provided
approximately Gamma oryzanol 14695.89 ug, GABA 2.88 mg, Vitamin E 87.17 ug, polyphenol 107.11 mg
eq GA, ORAC 8484.25 umoles TE and FRAP 1364.64 umoles TE. (calculated from Table 1). These
