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001-es BibID:	BIBFORM124188
035-os BibID:	(Scopus)85199681582 (WoS)001285927900001
Első szerző:	Gyöngy Martina
Cím:	Viability of Metagonimus romanicus (Ciurea, 1915) metacercariae after physico-chemical treatments / Gyöngy, Martina; Sellyei, Boglárka; Czeglédi, István; Székely, Csaba; Cech, Gábor
Dátum:	2024
ISSN:	2405-6766
Megjegyzések:	Digenean (Heterophyidae) trematodes include several zoonotic species such as the genus Metagonimus (Katsurada, 1912). Metagonimus romanicus (Ciurea, 1915) is a species widely distributed in Europe, whose metacercariae can be found on cyprinoids from the River Danube in Hungary. The aim of the study was to measure the viability of Metagonimus romanicus metacercariae by physical (freezing, heating, desiccation) and chemical (acetic acid and NaCl solutions) treatments. The methods were chosen as a model for procedures commonly used in traditional food preservation (such as freezing, salting, pickling and smoking) to measure the survival rate of metacercariae under different conditions. Most physical treatments (freezing of metacercariae at ?20 ?C, keeping them at 40 ?C and 60 ?C and desiccation) and chemical treatments (2.5%, 5%, 10% acetic acid solution and 5% and 10% NaCl solution) killed the metacercariae in a relatively short time (from 30 min to 6 days depending on the treatment) so their effects eliminated the risk of zoonotic infection. On the other hand, the metacercariae survived at room temperature and at 4 ?C up to one month. Therefore, storing unprepared fish in domestic refrigerators cannot prevent infection with metacercariae in humans.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk Metacercariae Metagonimus romanicus Physico-chemical treatments Viability Zoonosis
Megjelenés:	Food and Waterborne Parasitology. - 36 (2024), p. 1-9. -
További szerzők:	Sellyei Boglárka Czeglédi István (1988-) (hidrobiológus) Székely Csaba Cech Gábor
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001-es BibID:	BIBFORM086436
035-os BibID:	(WoS)000507574400001 (Scopus)85078048383
Első szerző:	Sándor Diána
Cím:	Digenean Holostephanus (Trematoda: Digenea: Cyathocotylidae) metacercariae in common carp (Cyprinus carpio Linnaeus, 1758) muscle: zoonotic potential and sensitivity to physico-chemical treatments / Sándor D., Gyöngy M., Nyeste K., Czeglédi I., Székely C., Buchmann K., Cech G.
Dátum:	2020
ISSN:	0022-149X
Megjegyzések:	Metacercariae of various species within the genus Holostephanus Szidat, 1936 (Trematoda: Digenea: Cyathocotylidae) occur in muscles of both farmed and wild fish, including common carp (Cyprinus carpio Linnaeus, 1758). The life cycle includes a snail as first intermediate host, fish as second intermediate host and birds or mammals as final hosts.We studied the zoonotic potential and the viability of Holostephanus metacercariae from common carp following exposure to various physical and chemical treatments. Muscle tissue samples of common carp specimens from a fish farm in the north-eastern part of Hungary were examined and metacercariae recovered. The zoonotic potential was evaluated experimentally by using small mammals as models (albino mice, n = 2; and Syrian hamsters, n = 4) infected per os with Holostephanus cysts. Parallelly, Metagonimus metacercariae were used as positive controls. We could not confirm the zoonotic potential of Holostephanus metacercariae as they did not survive in the mammalian intestine whereas Metagonimus metacercariae developed to the adult stage. We assessed the viability of metacercariae isolated from common carp specimens during exposure to different physical treatments (temperatures of ?18?C, +20?C, +40?C and +60?C) and chemical agents (5% and 10% acetic acid and 10% sodium chloride (NaCl)). Metacercariae lost viability by freezing at ?18?C (2 h), heating at 60?C (20 min), incubation in 5% and 10% acetic acid (5 min) and 10% NaCl (2 h). These methods served as models to investigate the effectiveness of food preparation techniques (such as cold and hot smoking, freezing, salting and pickling) on the survival of metacercariae.
Tárgyszavak:	Természettudományok Környezettudományok idegen nyelvű folyóiratközlemény külföldi lapban folyóiratcikk
Megjelenés:	Journal of Helminthology. - 94 : e117 (2020), p. 1-8. -
További szerzők:	Gyöngy Martina Nyeste Krisztián József (1993-) (hidrobiológus) Czeglédi István (1988-) (hidrobiológus) Székely Csaba (agrármérnök) Buchmann, K. Cech Gábor
Pályázati támogatás:	ÚNKP-18-3-I-ELTE-410 Egyéb GINOP-2.2.1-15-2016-00029 GINOP (NKFIH-1150-6/ 2019 Egyéb
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
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