Combined effect of MAP and thyme essential oil on the microbiological, chemical and sensory attributes of organically aquacultured sea bass (Dicentrarchus labrax) fillets
Φόρτωση...
Ημερομηνία
Συγγραφείς
Kostaki, M.
Giatrakou, V.
Savvaidis, I. N.
Kontominas, M. G.
Τίτλος Εφημερίδας
Περιοδικό ISSN
Τίτλος τόμου
Εκδότης
Elsevier
Περίληψη
Τύπος
Είδος δημοσίευσης σε συνέδριο
Είδος περιοδικού
peer reviewed
Είδος εκπαιδευτικού υλικού
Όνομα συνεδρίου
Όνομα περιοδικού
Food Microbiology
Όνομα βιβλίου
Σειρά βιβλίου
Έκδοση βιβλίου
Συμπληρωματικός/δευτερεύων τίτλος
Περιγραφή
The present study evaluated the combined effect of Modified Atmosphere Packaging (MAP) using two different gas mixtures (40% CO(2)/50% N(2)/10% O(2): treatment M1, 60% CO(2)/30% N(2)/10% O(2), treatment M2), and thyme oil (0.2% v/w, T) used as a natural preservative, on the quality and shelf life extension of fresh product of organic aquaculture, during refrigerated storage (4 +/- 0.5 degrees C), for a period of filleted sea bass, 21 days. Aerobically packaged sea bass fillets (A) were used as control samples. The dominant bacteria in the microflora of sea bass fillets, irrespective of treatment, were the pseudomonads and the H(2)S-producing bacteria while lactic acid bacteria were also part of the dominant microflora. Total viable counts for fresh sea bass fillets stored aerobically exceeded 7 log CFU/g after 7 days, while treatments M1, M2 and M2+T reached the same value oil days 9, 10, 12 and 19, respectively. Among the A+T, chemical indices determined, TBA values were within the good quality limits (2-4 mg MDA/kg), during the sensory shelf lives of sea bass samples, irrespective of treatment. TVB-N proved to be a suitable index for the spoilage of sea bass fillets stored at 4 degrees C. Samples A and A+T, M1, M2, M2+T exceeded the proposed upper TVB-N acceptability limit (10 mg N/100 g) oil days 6, 8, 9, 13 and 17 of storage respectively. TMA-N values of the samples A, A+T and M1, M2, M2+T exceeded the proposed limit (4 mg N/100 g) on days 6, 9, 9-10, 13 and 19 of storage, respectively, and correlated well with the microbiological data, indicating that along with TVB-N, TMA-N may serve as a useful index for sea bass fillets spoilage. As regards sensory evaluation, the presence of thyme oil proved to improve the sensory quality of sea bass fillets when used in combination with MAP2, providing a shelf life of 17 days as compared to 6 days of the control samples. (c) 2009 Elsevier Ltd. All rights reserved.
Περιγραφή
Λέξεις-κλειδιά
modified atmosphere packaging, thyme oil, sea bass, preservation, shelf-life extension, oregano essential oil, bream sparus-aurata, plant essential oils, modified atmosphere, listeria-monocytogenes, antimicrobial activity, ice, quality, inhibition
Θεματική κατηγορία
Παραπομπή
Σύνδεσμος
<Go to ISI>://000267045800004
http://ac.els-cdn.com/S0740002009000537/1-s2.0-S0740002009000537-main.pdf?_tid=26add19f9a598b5464bf7f4001b39354&acdnat=1333039988_3a080159c2b3594e895f56d057bb0980
http://ac.els-cdn.com/S0740002009000537/1-s2.0-S0740002009000537-main.pdf?_tid=26add19f9a598b5464bf7f4001b39354&acdnat=1333039988_3a080159c2b3594e895f56d057bb0980
Γλώσσα
en
Εκδίδον τμήμα/τομέας
Όνομα επιβλέποντος
Εξεταστική επιτροπή
Γενική Περιγραφή / Σχόλια
Ίδρυμα και Σχολή/Τμήμα του υποβάλλοντος
Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Χημείας