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Softening in kiwifruit.

MacRae, E.; Redgwell, R.;

Postharvest News and Information Year: 1992 Vol: 3 Issue: 3 Pages: 49N-52N Ref: 30 ref.

1992

บทคัดย่อ

Softening in kiwifruit.

Kiwifruit (Actinidia deliciosa) offers a useful alternative to tomato in which to study fruit softening. Once harvested there is an extended period (prior to the climacteric) during which most fruit softening occurs. Starch degradation and cell wall changes occur, including pectin solubilization, loss of galactose from the pectin side chains, reduction in molecular weight of the xyloglucan and cell wall swelling. Tensile tests and ultrastructural studies have shown that a loss of cell-cell adhesion at the middle lamella occurs towards the end of fruit softening. Future research needs to establish the interactions between the softening processes, enzymatic changes, and the various physicochemical changes which are known to occur during kiwifruit ripening.