2.3.2. Measurements of the M. alba extract color
Color values of the mulberry fruits extract were measured using
a spectro-colorimeter (Model JS555, Color Techno System Corporation,
Tokyo, Japan) tristimulus color analyzer calibrated with a
white porcelain reference plate. The visible reflectance spectra
(380–770 nm) were obtained through a silicon check photocell
and a pulsed xenon lamp as a source of illumination (illuminant
D65, 0 view angle, illumination area diameter 8 nm). Based on
the spectra, the apparatus calculated and returned the color
parameters. The color coordinates of the uniform color space CIELAB
L*, a*, b* were determined by its reflectance (L*) and chromaticity
(a* and b*). The L* value indicates brightness ranging from
black (L* = 0) to white (L* = 100). The a* value ranges from 60
(green) to 60 (red) and b* value ranges from 60 (blue)–60 (yellow).
All experiments were done in triplicate.
2.3.3. Determination of the total anthocyanin content
2.3.2. Measurements of the M. alba extract color
Color values of the mulberry fruits extract were measured using
a spectro-colorimeter (Model JS555, Color Techno System Corporation,
Tokyo, Japan) tristimulus color analyzer calibrated with a
white porcelain reference plate. The visible reflectance spectra
(380–770 nm) were obtained through a silicon check photocell
and a pulsed xenon lamp as a source of illumination (illuminant
D65, 0 view angle, illumination area diameter 8 nm). Based on
the spectra, the apparatus calculated and returned the color
parameters. The color coordinates of the uniform color space CIELAB
L*, a*, b* were determined by its reflectance (L*) and chromaticity
(a* and b*). The L* value indicates brightness ranging from
black (L* = 0) to white (L* = 100). The a* value ranges from 60
(green) to 60 (red) and b* value ranges from 60 (blue)–60 (yellow).
All experiments were done in triplicate.
2.3.3. Determination of the total anthocyanin content
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