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Articles

STUDY OF CHEMICAL AND MICROBIOLOGICAL STABILIZATION OF KIWIFRUIT BY HIGH PRESSURE TREATMENTS

Article number
444_103
Pages
671 – 678
Language
Abstract
Kiwifruit (Actinidia deliciosa) could not be successfully heat treated without changing in color and flavor becoming untypical.

The possibility of obtaining a stable kiwi pulp without any thermal treatment by applying the high-pressure technique was evaluated using a pilot isostatic press from firm ABB (Sweden). Samples of puree produced in the laboratory without using any heat treatments were subjected to HPP 500 MPa at 20 °C for 3 min.

The product’s shelf-life (4°C and 20°C) was determinated by means of physico-chemical and organoleptic evaluations.
The sensory analysis, performed during the storage time, has been supported by instrumental analysis of volatile and color.

The high-pressure technique allows the stabilization of the kiwifruit pulp maintaining acceptable color and flavor up to 30 days of chilled shelf-life.
Biochemical modifications and consequent influence on shelf-life have to be more understood.

Publication
Authors
G. Carpi, P. Rovere, A. Maggi, R. Bazzarini, F. Bressa
Keywords
kiwifruit, high-pressure, color, chill, shelf-life
Full text
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