국내 신선 채소류의 미생물 오염 특성

홍채규,서영호,최채만,황인숙,김무상 한국식품위생안전성학회 2012 한국식품위생안전성학회지 Vol.27 No.1

A total of 187 samples of leafy vegetables and fruits were acquired at traditional markets and department stores in Seoul, Korea. Samples were tested for microorganism distributions and for the presence of pathogenic bacteria. The aerobic mesophilic counts ranged between 2.5 and 9.4 log CFU/g, with the highest count recorded from the dropwort. Counts of psychrotrophic microorganisms were as high as those of the mesophilic microorganisms. Total coliform populations between 1.0 and 7.8 log CFU/g were found in 90.9% of the samples. Microbiological counts for fruits were very low. Escherichia coli was isolated in 24 (12.8%) samples. Staphylococcus aureus and Clostridium perfringens contamination were found in 15 (8.0%) and 20 (10.7%) samples. Salmonella species and Listeria monocytogenes were detected in 2.7 and 0.5% of samples, respectively. Among the total 187 samples, 8 samples were contaminated by more than two pathogens. E. coli O157:H7 was not detected in any of the samples. The microbial contamination levels determined in the present study may be used as the primary data to execute microbial risk assessment of fresh vegetables and fruits

鎭海灣의 渦鞭毛藻類 休眠胞子의 分類

李宗南,文成基,柳奎烈,洪菜奎 慶星大學校 1993 論文集 Vol.14 No.2

This study was conducted to examine the species composition of dinoflagellate cysts in Chinhae Bay where has been reported as a region of frequent occurrence of red tide. The survey was carried out four times from July, September, November 1988, February 1989 at 20 stations. The results obtained are as follows : The resting cysts of dinoflagellate were composed of 10 genera and 20 species. Among these species, were recorded resting cysts of Gonyaulax polyedra, Gonyaulax spinifera, Gyrodimiun instriatum, Pheopolykrikos hartmannii, Polykrikos schwartzii, Protoceratium reticulatum, Alexandrium tamarensis, Scrippsiella trochoidea, known as causative organisms of red tides. Unrecorded in any previous studies in Korea, resting cysts of causative organisms of red tide, Gyrodinium instriatum, Pheopolyrriros hartmannii, Protoceratium reticulatum and resting cysts of PheoPolyrriros hartmannii, Protoceratim reticulatum and resting cysts of Protoperidinium compressum and Protoperidinium denticulatum in motile form were researched. Therefore it is necessary to identify those motile cells in future.

과자류의 품질평가

박건용,홍채규,조성애,최영희,신영,한상운,조남준 한국식품위생안전성학회 2005 한국식품위생안전성학회지 Vol.20 No.3

회동수원지의 식물플랑크톤군집에 관하여

문성기,홍채규,정종문 한국환경과학회 1995 한국환경과학회지 Vol.4 No.3

A study on phytoplankton community was carried out from June, 1992 to May, 1993 at selected stations in Hoedong Reservoir. The phytoplankton are identified as 176 taxa including 5 phylum, 67 genera. The important species in this reservoir were Asterionella formosa, C. meneghiniana, Dictyasphaerium pulchellum, Fragilaria crotonensis, Melosira distans, M. granulata, M. granulata var. angustissima, M. granulata var, angustissima f. spiralis, Micractiniurn pussillum, Microcystis aeruginosa, Pandorina morum, Pediastrum boryanum, P. duplex, Peridinium sp., Scenedesmus quadricauda, Synedra acus, S. rumpens and S. ulna. The causative species of water bloom were identified as Microcystis aeruginosa, Trachellomonas hispida, Ceratium hirundinella, Peridinium sp., Melosira italica, Staurastrum dorsidentiferum var. ornatum in the area. During the study periods standing crops of phytoplankton were maximum in August, 1992 and minimum in December, 1992. The species dominance index and diversity index were ranged 24.7-99.9, 0.001-3.06, respectively.

荒嶺山(釜山) 山麓 植物의 開花期 調査

이종남,홍채규,문성기 慶星大學校 1992 論文集 Vol.13 No.3

1. The recorded plants in this survey were 72 families, 168 genera, 249 kinds. 2. The number of species of plants flowered monthly were most in May as 119 kinds and least in January as 3 kinds(Yucca tricreana, Camellia japonica, Senecio vulagalis). According to the seasons the number of species of flowered plants were 255 kinds in Spring, 247 kinds in Summer, 144 kinds in Autumn, 34 kinds in Winter. 3. In comparision with the results of another previous studies the flowering period was early two months in herbaceous plants, one month in woody plants. 4. Through four seasons Senecio vulgaris and Sonchus loeraceus were flowering, three seasons 8 kinds(Trifolium repens, etc.), not continuosly for two seasons 8 kinds(Tradescantia reflexa, etc.). 5. In the character of habitat pattern, native species were 136 kinds, ornamental species 76 kinds, cultured species for food 26 kinds, naturalized species 11 kinds. 6. Native species of 41 kinds which are not recorded in the previous studies(Jung, 1991) are added to this paper newly.

Multivariate analysis to discriminate the origin of sesame seeds by multi-element analysis inductively coupled plasma-mass spectrometry

최영희,홍채규,김미선,정선옥,박주성,오영희,권중호 한국식품과학회 2017 Food Science and Biotechnology Vol.26 No.2

In this study, inductively coupled plasma-mass spectrometry (ICP-MS) was used to determine the concentration of 15 elements (Mg, Al, K, Ca, Cr, Mn, Co, Ni, Cu, Zn, Rb, Sr, Cd, Ba, and Pb) of sesame seeds. Multivariate analysis was then performed to discriminate the origin of sesame seeds. Korean (48), Chinese (44), and Indian (21) samples were used to develop the calibration model. Another 10 samples were used to validate this model. All elements were significantly different (p<0.05) among the samples from three countries, and all elements were subjected to both principal component analysis (PCA) and discriminant analysis. The concentrations of multi-element showed a trend of clustering according to the origin of samples based on PCA. They showed a discrimination rate of 92.0% in the discriminant analysis. The results demonstrated that a combination of ICP-MS multi-element determination and multivariate analysis could be used to discriminate the sesame seed origin

黃江의 水質과 植物플랑크톤群集에 관한 硏究

文成基,洪菜圭,李相薰,鄭鍾文 慶星大學校 1994 論文集 Vol.15 No.2

A Study on water quality and phytoplakton community was carried out from April, 1992 to March, 1993 in Hwang-Kang. The results obtained on this study are as follows. The value of environmental factors about water quality such as water temperature, pH, precipitation, DO, BOD, NH??₄-N, NO??₂-N, NO??₃-N and PO??₄-P were ranged 1.8-30℃, 6.7-8.4, 3.0-183.6mm, 8.4-14.8 mg/l, 0.7-3.0mg/l, 0.01-0.09 mg/l, 0.10-3.80 mg/; and 0.01-0.19 mg/l respectively. The phytoplankton are identified as 235 taxa including 78 genera, 202 species, 29 varieties and 4 forms. In these study areas the common species occurred frequently were Cyclotella meneghiniana, Fragilaria crotonensis, Melosira varians and Synedra ulna. The causative species of red ride were identified as Microcystis aeruginosa, Trachellomonas hispida, Ceratium hirundinella, Peridinium cinctum, Melosira italica and Staurastrum dorsidentiferum var. ornatum in the areas. The lowest standing crops(20.1 cells/ml) were recorded on January, 1993 and the highest(1,993 cells/ml) were recorded on May, 1992. According to the seasonal succession, dominant species were Fragillaria crotonensis in Spring, Actinastrum hantzschii var. elongatum, Peridinium bipes, Scenedesmus ellipsoidus for. flagellispinosus in Summer, Ceratium hirundinella, Melosira granulata var. angustissima in Autumn and Fragillaria crotonensis in Winter. Saprobic index showed that all stations were β-mesosaprobic.

Prorocentrum속에 관한 연구

문성기,이삼근,홍채규 한국환경과학회 1995 한국환경과학회지 Vol.4 No.2

Identified 7 species of the genus Prorocentrum which have been obtained from the southern coast area for 4 years from 1990 to 1994 can be summarized as followed. P.balticum is rare species, causing a red tide, and P.dentatum, P.micans, P.minimum, P.triestinum are cosmopolitan species often causing a red tide in the study area. P.gracile and P. lima are very rarely showed up, the former is recorded at first in domestic and later is benthic attached species which has diarrheic shellfish poison.

GC-ECD와 GC-MSD를 이용한 유니코나졸 잔류실태조사

김은정(Eun-Jeung Kim),홍채규(Chae-Kyu Hong),최수정(Su-Jeong Choi),이윤정(Yun-Jeong Lee),황인숙(In-Sook Hwang),김무상(Moo-Sang Kim),채영주(Young-Zoo Chae) 한국식품과학회 2013 한국식품과학회지 Vol.45 No.3

서울에서 유통 중인 채소류의 중금속 함량에 관한 연구

최채만(Chae-Man Choi),최은정(Eun-Jung Choi),김태랑(Tae-Rang Kim),홍채규(Chae-Kyu Hong),김정헌(Jung-Hun Kim) 한국식품영양과학회 2010 한국식품영양과학회지 Vol.39 No.12

본 연구에서는 서울지역에서 유통되고 있는 소비량이 많은 채소류의 중금속 함량을 조사해 국외기준과 비교하여 그 안전성을 평가하였다. 전국에서 재배되어 서울에서 유통되고 있는 채소류 20종 300건을 2009년 1월부터 10월까지 구입하여 중금속 8종(수은, 납, 카드뮴, 비소, 크롬, 니켈, 구리, 아연)을 수은분석기 및 ICP-OES를 이용하여 분석하였다. 시료의 분해는 산분해법을 이용하였으며 분석 장비로 사용된 ICP-OES 및 수은 분석기의 검출한계와 정량한계는 각각 0.0002~0.0018 ㎎/㎏ 및 0.0009~0.0065 mg/kg으로 감도가 높았다. 채소류 중 중금속 함량[평균(최소~최대), ㎎/㎏]은 수은 0.0005(N.D~0.007), 납 0.011(N.D~0.259), 카드뮴 0.012(N.D~0.188), 비소 0.002(N.D~0.142), 크롬 0.100(0.019~0.954), 니켈 0.093(0.003~1.231), 구리 1.098(0.072~36.29), 아연 3.480(0.485~21.31)이었다. 본 연구를 통해 얻어진 결과들 중 수은, 납, 카드뮴, 비소, 구리, 그리고 아연은 기존 연구들과 유사하였으며 크롬, 니켈은 낮은 수준이었다. 납과 카드뮴의 경우 채소류 중 중금속 기준을 초과한 것은 한 건도 없었다. 또한 2005년 국민영양조사 결과보고서의 1일 섭취량을 근거로 FAO/WHO의 중금속 잠정주간섭취허용량과 비교하면 Hg, Pb 및 Cd는 각각 0.44%, 1.98% 및 7.71%의 낮은 수준으로 식이를 통한 안전에는 문제가 없는 것으로 판단된다. 본 연구 결과는 아직 세부 기준이 설정되지 않은 채소류에 대한 중금속 기준을 설정하는데 있어 과학적 근거 자료로 활용될 수 있을 것으로 기대된다. This study was conducted to estimate the heavy metal contents of vegetables available on the markets in Seoul area. Concentrations of mercury (Hg), lead (Pb), cadmium (Cd), arsenic (As), chrome (Cr), nickel (Ni), copper (Cu), and zinc (Zn) were measured in 300 samples using a mercury analyzer and inductively coupled plasma optical emission spectrometer (ICP-OES) after wet digestion. The average values of heavy metals in vegetables were as follows [mean (minimum~maximum), ㎎/㎏]; Hg: 0.0005 (N.D~0.007), Pb: 0.011 (N.D~0.259), Cd: 0.012 (N.D~0.188), As: 0.002 (N.D~0.142), Cr: 0.100 (0.019~0.954), Ni: 0.093 (0.003~1.231), Cu: 1.098 (0.072~36.29), and Zn: 3.48 (0.485~21.31). The heavy metal contents of vegetables available on the markets in Seoul were almost the same as or lower than those reported in other studies. The weekly average intakes of mercury, lead and cadmium from vegetables take 0.44~7.71% of PTWI (Provisional Tolerable Weekly Intakes) that the FAO/WHO Joint Food Additive and Contaminants Committee sets for evaluation of food safety.