Physical characteristic determination
The final fermented Khao-Mak were conducted for colure by using a Color meter
(Nippon Denshoku, ZE-2000, Japan). The equipment was calibrated with standard plate.
Color measurement were expressed in L* indicates the lightness on a 0 to 100 scale from
black to white. a* (+,-) are indicates the redness or greeness,respectively. b* (+,-) are
indicates yellowness and buleness, respectively.