Dipping banana slices in guar gum solution resulted in significantly
higher weight gain than dipping in xanthan gum, as shown
in Fig. 2. This was due to the higher viscosity of guar gum compared
to xanthangum (Casas et al., 2000). Other studies have reported that
as viscosity increases, the swelling power and solubility index of the
solutions increases (Chaisawang and Suphantharika, 2005; Annapure
et al., 1999). This might have resulted in better adherence of
the guar gum coating to the surface of the banana slices.