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Effect of Different Cooking Methods on Histamine Levels in Selected Foods
( Bo Young Chung ),( Sook Young Park ),( Yun Sun Byun ),( Jee Hee Son ),( Yong Won Choi ),( Yong Se Cho ),( Hye One Kim ),( Chun Wook Park ) 대한피부과학회 2017 Annals of Dermatology Vol.29 No.6
Background: Histamine in food is known to cause food poisoning and allergic reactions. We usually ingest histamine in cooked food, but there are few studies about the influence of cooking method on the histamine level. Objective: The purpose of this study was to determine the influence of cooking methods on the concentration of histamine in foods. Methods: The foods chosen were those kinds consumed frequently and cooked by grilling, boiling, and frying. The histamine level of the food was measured using enzyme-linked immunosorbent assay. Results: Grilled seafood had higher histamine levels than raw or boiled seafood. For meat, grilling increased the histamine level, whereas boiling decreased it. For eggs, there was not much difference in histamine level according to cooking method. Fried vegetables had higher histamine levels than raw vegetables. And fermented foods didn’t show much difference in histamine level after being boiled. Conclusion: The histamine level in food has changed according to the cooking method used to prepare it. Frying and grilling increased histamine level in foods, whereas boiling had little influence or even decreased it. The boiling method might be helpful to control the effect of histamine in histamine-sensitive or susceptible patients, compared with frying and grilling. (Ann Dermatol 29(6) 706∼714, 2017)
Jee, Bo Young,Kim, Min Sun,Cho, Mi Young,Lee, Soon Jeong,Park, Myung Ae,Kim, Jin Woo,Choi, Seung Hyuk,Jeong, Hyun Do,Kim, Ki Hong The Korean Society of Fisheries and Aquatic Scienc 2014 Fisheries and Aquatic Sciences Vol.17 No.3
RNA interference (RNAi)-mediated transcriptional knock-down of Crassostrea gigas big defensin 1 and 2 genes (Cg-BigDef1 and Cg-BigDef2) was investigated. The cDNA sequences of Cg-BigDef1 and Cg-BigDef2 were identical, excluding an additional fragment of 20 nucleotides in Cg-BigDef1; thus, a long double-stranded RNA (dsRNA) targeting the mRNA of Cg-BigDef2 effectively downregulated both Cg-BigDef2 and Cg-BigDef1. In addition, long dsRNA targeting green fluorescent protein (GFP) did not affect transcription of the two big defensin genes. These results suggest that the transcriptional downregulation of Cg-BigDef1 and Cg-BigDef2 was mediated by sequence-specific RNA interference (RNAi). Despite injection of long dsRNA targeting Cg-BigDef2 into only the adductor muscle, knock-down of Cg-BigDef1 and Cg-BigDef2 was observed in the adductor muscle, hemocytes, mantle, and gills, suggestive of systemic spread of RNAi in C. gigas. Furthermore, the inhibitory effect of dsRNA persisted until 72 h post-injection, indicative of a long-lasting RNAi-mediated knock-down of target genes.
Jee Bo-Young,Kim Yi-Cheong,Bang Jong-Duek,Kim Ki Hong The Korean Society of Fisheries and Aquatic Scienc 2000 Fisheries and Aquatic Sciences Vol.3 No.3
Trypanosoma sp. (Sarcomastigophora: Kinetoplastida) was found in the blood of the Korean catfish, Silurus asotus, for the first time in Korea. The morphological characteristics of Trypanosoma sp. in the present study were similar with those of T. carassii, T. tincae and T. danilewskyi. However, the free flagellum length of Trypanosoma sp. was obviously shorter than that of those species. The species identification was reserved until elucidating the pleomor-phism according to the phase of infection and the cross infectivity among fish species.
Bo Young Jee,Mi Ra Jo,Jin Woo Kim,Mi Seon Park 한국어병학회 2002 한국어병학회지 Vol.15 No.3
The scuticocilliate, Uronema marinum is a histophagous ciliate and the causative agent of 'scuticociliatosis'in cultured olive flounder Paralichthys olivaceus. In the present study, in vitro efficacy of hydrogen peroxide, formalin and copper sulfate on the scuticocilliate at low salinity was investigated. Each chemical showed synergistic parasiticidal effects with low salinity (salinity in 5 ppt) compared to each chemical alone (salinity in 33 ppt). At low salinity (5 ), ciliates were killed completely within 1.5h by exposure to 50ppm formalin (37% formaldehyde), at 100ppm hydrogen peroxide (30% solution) and at 100ppm copper sulfate (20% solution). The formalin was the most effective chemical against the parasites at low salinity.
( Bo Young Jee ),( Su Jin Lee ),( Mi Young Cho ),( Soon Jeong Lee ),( Jin Woo Kim ),( Seung Hyuk Choi ),( Hyun Do Jeong ),( Ki Hong Kim ) 한국수산과학회(구 한국수산학회) 2013 Fisheries and Aquatic Sciences Vol.16 No.2
The presence of ostreid herpesvirus 1 (OsHV-1) and the percentage of viral DNA detected in Pacific oyster Crassostrea gigas adults were investigated monthly between May and November 2012 at three locations along the southern coast of Korea. A mong 210 oysters examined by polymerase chain reaction (PCR) analysis, OsHY-1 DNA was detected in only one oyster collected in August. The low detection rate of OsHV-1 DNA was conisitent with the lack of reported OsHV-1-associated disease in C. gigas cultured in Korea. The sequence of the present PCR product amplified with the C2/C6 primer pair was identical to that of OsHV-1 μVar except for one nucleotide, and the sequence amplified with De136-37F2/De136-37R showed a 605-bp deletion as in OsHV-1 μVar. Although these sequence data are insufficient to determine genotype, the results suggest that the herpesvirus detected was similar to OsHV-1 μVar. This is the first report on the presence of OsHV-1 in adult Pacific oysters cultured in Korea.
Detection of Ostreid Herpesvirus 1 from adult Pacific Oysters Crassostrea gigas Cultured in Korea
Jee, Bo Young,Lee, Su Jin,Cho, Mi Young,Lee, Soon Jeong,Kim, Jin Woo,Choi, Seung Hyuk,Jeong, Hyun Do,Kim, Ki Hong The Korean Society of Fisheries and Aquatic Scienc 2013 Fisheries and Aquatic Sciences Vol.16 No.2
The presence of ostreid herpesvirus 1 (OsHV-1) and the percentage of viral DNA detected in Pacific oyster Crassostrea gigas adults were investigated monthly between May and November 2012 at three locations along the southern coast of Korea. Among 210 oysters examined by polymerase chain reaction (PCR) analysis, OsHV-1 DNA was detected in only one oyster collected in August. The low detection rate of OsHV-1 DNA was consistent with the lack of reported OsHV-1-associated disease in C. gigas cultured in Korea. The sequence of the present PCR product amplified with the C2/C6 primer pair was identical to that of OsHV-1 ${\mu}Var$ except for one nucleotide, and the sequence amplified with Del36-37F2/Del36-37R showed a 605-bp deletion as in OsHV-1 ${\mu}Var$. Although these sequence data are insufficient to determine genotype, the results suggest that the herpesvirus detected was similar to OsHV-1 ${\mu}Var$. This is the first report on the presence of OsHV-1 in adult Pacific oysters cultured in Korea.