o_19acu5i0o7rb1dfpkjs1lto8ooe.pdf

Foong, J. H., Hon, W. M., & Ho, C. W.
being the major red-violet pigment and others such as plhyllocactin, isophyllocactin, and
bougainvillein-R-I, where all have identical absorption spectra that contribute to the colour of pulp
(Henriette, 2009; Rebecca et al., 2010). Among these, only betanin and isobetanin were quantified in
this study due to the unavailability of commercial standard.
Plant source food bioactive compounds such as phenolic compounds have been recognized as
having potential to reduce disease risk such as coronary heart disease, cancer and reduce cholesterol
level, mainly arisingfrom its antioxidant properties (Yang et al., 2007; Kuraswamy & Satish, 2008;
Zainoldin & Baba, 2012). Therefore, various spectrophotometric methods were used for the
quantification of phenolic compounds in fermented RDF liquid, such as total phenolic content (TPC),
total flavonoid content (TFC) and total flavanol assay (TFA). All of these assays are used to
determine various structural groups phenolic compounds based on different principles (Chang et al.,
2002; Tay, 2011). From Table 3, SB was found to exhibit significant higher (p