FN Archimer Export Format
PT J
TI Biological silages from Tunisian shrimp and octopus by-products
BT 
AF HARRABI, Houwaida
   LEROI, Francoise
   MIHOUBI, Nourhene Boudhrioua
   CHEVALIER, Frederique
   KECHAOU, Nabil
AS 1:1;2:2;3:3;4:2;5:1;
FF 1:;2:PDG-RBE-BRM-LEMMMB;3:;4:PDG-RBE-BRM-LEMMMB;5:;
C1 Univ Sfax, Ecole Natl Ingenieurs Sfax, Lab Mecan Fluides Appl & Prod Genie Proc & Enviro, Route Soukra Km 3,5 BP 1173-3038, Sfax, Tunisia.
   IFREMER, Ctr Atlantique, Lab Ecosyst Microbiens & Mol Marines Biotechnol, Rue Ile Yeu, Nantes 03, France.
   Univ Mannouba, Inst Super Biotechnol Sidi Thabet, Unite Rech Ecophysiol & Proc Agroalimentaires UR1, Ariana Tunis, Tunisia.
C2 UNIV SFAX, TUNISIA
   IFREMER, FRANCE
   UNIV MANNOUBA, TUNISIA
SI NANTES
SE PDG-RBE-BRM-LEMMMB
IN WOS Ifremer jusqu'en 2018
   copubli-int-hors-europe
   copubli-sud
IF 0.682
TC 2
UR https://archimer.ifremer.fr/doc/00337/44839/44427.pdf
LA English
DT Article
DE ;Shrimp by-product;octopus by-product;biological silage;biochemical characteristics;microbiological characteristics
AB Biological silages were prepared from shrimp head and octopus viscera by-products recuperated from the Tunisian seafood industry. Physical and biochemical changes and microbiological profiles were determined for raw materials during fermentation and on end products. Results showed that biological silage significantly affected (P<0.05) moisture, protein, and ash contents of shrimp head (CSHS) and octopus viscera silages (COVS). CSHS and COVS were stable, and their final pH values were 4.31 ± 0.01 and 3.71 ± 0.00, respectively. Proteolysis activity was confirmed by a significant increase (P<0.05) of soluble nitrogen and low molecular weight of protein (<260 Da) found on the end products for both silages. Lipid oxidation was delayed by addition of 150 ppm ethoxyquin to the raw material prior to fermentation. Biogenic amines detected in raw shrimp and octopus samples decreased significantly (P<0.05) during the silage process. Histamine and tyramine, detected at high levels on octopus viscera, were absent in the end products. Tyramine was produced in CSHS, indicating the possibility of the bacterial decarboxylation of tyrosine. Microbiological profiles showed that both silage products were free from pathogenic and spoilage bacteria. Therefore, biological silage can be used as a conservation procedure of shrimp and octopus by-products. The storage period could be shorter than 30 days, and further analysis should be carried out to ascertain safety and nutritional value of silage products.
PY 2017
SO Journal Of Aquatic Food Product Technology
SN 1049-8850
PU Taylor & Francis Inc
VL 26
IS 3
UT 000404647500006
BP 279
EP 295
DI 10.1080/10498850.2016.1145160
ID 44839
ER

EF