174
2000; de Pascual-Teresa and Sanchez-Ballesta,
2008; Tsanova-Savova et al., 2005) while the total
anthocyanins content was comparable among them.- Conclusions
All data obtained revealed that dabai fruit was a very
nutritious fruit. While the proximate, amino acids
and fatty acids compositions of dabai fruits varied
to a lesser extent among fruits from different grow-
ing areas as well as between the red and purple va-
rieties; total phenolics (TPC), flavonoids (TFC) and
anthocyanins (TAC) contents of fruits were found
varied greatly among growing areas and especially
between the two varieties. Dabai fruit had high nu-
tritional values and great antioxidant properties; ex-
hibiting huge potential of extrapolation. It is
postulated that, in addition to the beneficial effects
conferred by its unsaturated fatty acids on blood
lipids profile by lowering blood cholesterol and
triglyceride levels, phenolic compounds of dabai
fruit give positive effects against oxidative stress.
The numerous potential biological capabilities of dabai
fruits based on the specific phenolic compounds iden-
tified, such as the cardioprotective effects of antho-
cyanins and antidiabetic effects of flavanols deserve
more precise and specific further investigations. Con-
sidering that little or no information is available about
the four divisions under investigation including their
soils, rainfall and other important variables, further
studies to achieve this purpose need to be conducted
especially in Kapit, a division where dabai fruits col-
lected distinguishably having great antioxidant prop-
erties. Moreover, based on the knowledge obtained in
this study on the variability between the purple and red
varieties, further investigation is needed to make the
best use of the two varieties.Table 1 2. Contents of anthocyanidins and anthocyanins in dabai fruits from different growing areas.
Purple dabai fruits Red dabai fruits
Phenolic compound Kanowit Kapit Song Sarikei
Cyanidin 0. 0 6± 0. 0 1a 0. 0 7± 0. 0 1a 0. 0 6± 0. 0 1a 0.0 3 ±0.00b
(0.06–0.07) (0.05–0.08) (0.05–0.08) (0.03–0.03)
Cyanidin-3-O- 0.34±0.02a 0.39±0.07a 0.32±0.07a 0.03±0.00b
glucoside (0.31–0.37) (0.29–0.46) (0.25–0.41) (0.03–0.03)
Cyanidin-
3-O-rutinoside 1.16±0.03b 1.85±0.34a 1.41±0.13b 0. 0 7± 0. 00 c
(1.13–1.19) (1.49–2.27) (1.31–1.63) (0.07–0.07)
Delphinidin 0.02±0.00b 0.11±0.03a 0.04±0.03b ND
(0.01–0.02)(0.08–0.16)(0.01–0.08)
Malvidin-3,5-di- 0.07±0.02b 0.20±0.07a 0.09±0.04b ND
O-glucoside (0.05–0.10)(0.12–0.28)
(0.03-0.15)
Pelargonidin Tr Tr Tr Tr
Peonidin-
3-O-glucoside Tr Tr Tr ND
Tr, trace; ND, not detected (< 10 ng/injection (20μl)).
mg/g DW. Results are expressed in mean±SD and (range).
Values with different letters are significantly different at p < 0.05 within the same row.