Journal
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
Volume 237, Issue -, Pages 109-113Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijfoodmicro.2016.08.023
Keywords
Limonene; Specific spoilage organisms; Sensory evaluation; Sparus aurata; Shelf life
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R(+)limonene (LMN) is the major aromatic compound in essential oils obtained from oranges, grapefruits, and lemons. The improvement of preservation techniques to reduce the growth and activity of spoilage microorganisms in foods is crucial to increase their shelf life and to reduce the losses due to spoilage. The aim of this work is to evaluate the effect of LMN on the shelf life of fish fillets. Its effectiveness was preliminarily investigated in vitro against 60 strains of Specific Spoilage Organisms (SSOs) and then on gilt-head sea bream fillets stored at 2 +/- 0.5 degrees C for 15 days under vacuum. LMN showed a good inhibitory effect against tested SSOs strains. On gilt head sea bream fillets, LMN inhibited the growth SSOs effectively, and its use resulted in a shelf-life extension of ca. 6-9 days of treated fillets, compared to the control samples. The LMN addition in Sparus aurata fillets giving a distinctive smell and like-lemon taste to fish fillets that resulted pleasant to panellists. Its use contributed to a considerable reduction of fish spoilage given that the fillets treated with LMN were still sensory acceptable after 15 days of storage. LMN may be used as an effective antimicrobial system to reduce the microbial growth and to improve the shelf life of fresh gilt-head sea bream fillets. (C) 2016 Elsevier B.V. All rights reserved.
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