Effect of Althaea officinalis flower extract on the quality of Thunnus albacares fillets during storage at 4 ° C

Yousefi, A. (2017) Effect of Althaea officinalis flower extract on the quality of Thunnus albacares fillets during storage at 4 ° C. Masters thesis, university of zabol.

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Abstract

The aim of this study was to evaluate the effect of Althaea officinalis extract on the shelflife of Thunnus albacares fillets during storage at 4°C. Fillets were treated with 1, 2 and 4% concentrations of Althaea officinalis extract, then packed and stored in refrigerator. Chemical (PV, TVB-N and TBA), microbial parameters (TVC, PTC) and sensory analysis were measured on 0, 3, 6, 9, 12 and 15 days of storage. The results showed that the values of TVB-N, TBA and PV increased (P<0.05) significantly during storage but this increase was lower in Althaea officinalis extract treatments than control. The TVC and PTC amount of fillets with 4% concentrations of Althaea officinalis extract significantly (P <0.05) lower than other treatments. The sensory evaluation of treatments indicated that the treatments containing the Althaea officinalis extract had the highest acceptable. So that the treatment with 4% of Althaea officinalis extract increased the shelflife of Thunnus albacares fillet during storage (4°C).

Item Type: Thesis (Masters)
Uncontrolled Keywords: Althaea officinalis extract, Thunnus albacares, Shelf life, Antioxidant
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Depositing User: Mrs najmeh khajeh
Date Deposited: 16 May 2018 06:53
Last Modified: 04 Mar 2019 05:31
URI: http://eprints.uoz.ac.ir/id/eprint/1934

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