For both pH and temperature the concentration of sugars decreased
in green beans until reaching a plateau at about 120 min.
Plateau levels (C1/C0) decreased with temperature at pH 7, and
between 25 and 45 C at pH 5, for glucose (Table 1). The residual
ratio (C1/C0) for fructose decreased with temperature both at pH
7 and 5, while the sucrose residual ratio appeared stable. There
was an effect of temperature on the reduction of the residual ratio
(C1/C0) of malic acid. In addition, it appeared that residual ratios
(C1/C0) of malic acid were higher at pH 5 than at pH 7 and at 45
and at 65 C.