Open AccessPLEROCERCOID GYMNORHYNCHUS (CESTODA: TRYPANORHYNCHA) IN LEPIDOPUS CAUDATUS: INTERFERENCE ON TMA-N AND TVB-N DETERMINATION
Author(s) -
A. Panebianco,
D. Signorino,
Daniele Muscolino,
Filippo Giarratana
Publication year - 2011
Publication title -
italian journal of food safety
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.359
H-Index - 13
ISSN - 2239-7132
DOI - 10.4081/ijfs.2011.1.77
Subject(s) - trimethylamine , cestoda , biology , nitrogen , parasite hosting , food science , larva , fish <actinopterygii> , zoology , chemistry , biochemistry , fishery , ecology , helminths , organic chemistry , world wide web , computer science
Total Volatile Basic Nitrogen (TVB-N) and Trimethylamine Nitrogen (TMA-N) are the most important freshness indicators in fish. The present report demonstrates that the Gymnorhynchus gigas plerocercoid may interfere on TVBN and TMA-N determination. The study was carried-out on 101 samples: 37 Mp (muscle portions around the parasite), 32 P (larvae of Gymnorynchus gigas extracted from muscle) and 32 Mnp (muscle portions parasite-free), obtained from 10 specimens of Lepidopus caudatus kept at several temperature for different time. The TVB-N and TMA-N contents of each sample were measured using the Conway microdiffusion method. Statistically significant differences (p < 0.05) between Mp and Mnp for TMA-N were found from 24h of storage at 4 and 15°C. No significant differences (p < 0.05) between Mp and Mnp for TVB-N were observed from 48h of storage at 4 and 15°C. TVB-N and TMA-N content was variable in larvae