For spinach, the diffusivity constant determined was on average
5.5 1012 m2/s both for sugars and acids (Table 1). Glucose, fructose
and sucrose from green beans showed a similar diffusivity
constant, therefore only glucose, the most abundant compound,
is presented. The temperature and pH did not seem to have any
influence on the rate of diffusion of sugars in green beans, which
was on average 6.1 1010 m2/s.