Shelf life of anchovy products (Engraulis encrasicolus): evaluation of sensory, microbiological and chemical properties

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Andrea Ariano *
Luigi Scarano
Amalia Mormile
Maria Barile
Giuseppe Palma
Nicoletta Murru
(*) Corresponding Author:
Andrea Ariano | arianoandrea87@gmail.com

Abstract

Fishery products have always been an important food in Italy. In the past, increased consumption was mainly due to the good quality of the products, easiness of use and their beneficial effects on health. Recently, owing to the national financial crisis, there has been a decline in the consumption of fish. In fact, in 2013, according to data from ISMEA, the consumption of fresh fish suffered a sharp contraction (-5%). This decline also concerns anchovy (Engraulis encrasicolus). This species, partly because of its low price, is a mainstay of traditional Italian food. The aim of this study was to evaluate sensorial, chemical and microbiological properties of anchovy-based (Engraulis encrasicolus) products during storage at 4 and -20°C. Fresh anchovies, obtained from the wholesale fish market of Pozzuoli (Southern Italy) were cut into small pieces and hand-prepared using bread, eggs, cheese and lemon juice. Samples were analysed after 0, 2, 4, 6 and 8 days of storage at 4°C. An aliquot was quickly frozen and analysed after 34 days at -20°C. Sensory assessment, microbiological (specific spoilage organisms, Listeria spp. and Salmonella spp.) and chemical (histamine, total volatile basic nitrogen, trimethylamine, thiobarbituric acid, pH and aw) analyses were performed. Results showed that the shelf life of anchovy products was less than 5 days for the samples stored at 4°C. At -20°C, all anchovies preparations showed good sensory, microbiological and chemical properties for 34 days.

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