Effects of pomegranate peel extract on keep-freshing of strawberry

In order to develop the new technique of strawberry fresh-keeping at room temperature and the effective use of pomegranate peel resources, fresh strawberry was immerged in 1.25% chitosan solution (T1), 1% pomegranate peel extract (T2), 1.25% chitosan with pomegranate peel extract (T3), and in distilled water as control, respectively. Weight loss rate, the decay rate, soluble solids content, titration acid content, MDA content and Vc content in strawberry were measured during storage periods at ambient temperature. Results showed that the rate of weight loss and rotten fruit and MDA content were reduced in three treatments, the declining rate of titration acid content, soluble solids content and Vc content were delayed, and T3 treatment gave the best effect, prolonged 1-2 days of storage time. Therefore, pomegranate peel extract for fresh strawberries is feasible, and the ideal effect is given by combining with appropriate concentration of chitosan liquid.