Centre Projects
To investigate the influence of berry size and ripeness on changes in fruit composition in different parts of the fruit
Brief:Berry size potentially influences the skin-to-pulp ratio in fruit. As the location within a berry of important flavour and aroma compounds varies, it can be anticipated that berry size may influence the relative proportions of these compounds in the fruit and, ultimately, the juice.
Differences in berry size due to different levels of fertilisation
do not appear to affect the skin:flesh ratio. Cell division
in the epidermis probably continues to the point of veraison,
while that in the pericarp (flesh) ceases approximately
30 days from flowering. In contrast, changes in berry
size due to factors such as water stress will influence
the ratio.
Using a micro-press, berries of different diameters are
to be pressed, after which juice release patterns and
flavour and aroma concentrations will be measured.
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