대학급식의 미생물적 품질보증을 위한 HACCP의 적용 : 참치샐러드 Tuna Salad

김운주,최은희,최현미,배주희,채현숙 충북대학교 교육 ·생활연구소 생활과학연구센터 2002 생활과학연구논총 Vol.6 No.1

The purpose of this study was to evaluate the microbiological quality, and to assure the safety of the food production process in the university foodservice facilities in accordance with the Hazard Analysis Critical Control Point(HACCP) concepts. The kitchen layout and time-temperature relationship, miciobiological quality(total plate count, coliform) were assessed to identify the critical point during each of the production phases. The results were as follows: 1) The kitchen layout had to be improved because contamination area was not separated from non-contamination area, and work table was in contact with washing sink. 2) Some employee did not follow personal hygiene standards(hand washing), and did not wear proper working uniforms(hair restraints). 3) The production time of tuna salad was 120 min, and environment temperature was 20.1~26.0℃. Improper receiving temperature, inproper holding practices(without cover at room temperature) were observed. 4) In the purchasing phase of the raw materials, the microbiological quality of green pepper was not at acceptable level based on the TPC(2.3×10^6CFU/g)and coliform(>14,000 MPN/g). During washing phase TPC was decreased about 3 log cycle. After cutting and holding phase the level of TPC and coliform were increased rapidly. At serving phase the microbiological quality of tuna salad were not at acceptable level(TPC 3.3×10^6 CFU/g, coliform 11,000 MPN/g) according to the standard set(TPC <10^5 CFU/g, coliform <100 MPN/g) by Sorberg et al. 5) For tuna salad, critical control points were purchasing and receiving of fresh vegetables, washing, cutting, holding, mixing and serving phase.

흰쥐에서 가시오가피 발효물의 단회 및 반복투여 독성평가

조주현(Ju-Hyun Cho),박인재(In-Jae Park),백순옥(Soon-Ok Baik),최수영(Soo-Young Choi),최구희(Goo-Hee Choi) 한국식품과학회 2014 한국식품과학회지 Vol.46 No.2

본 연구에서는 사용된 가시오가피 영지버섯 발효물과 가시오가피 상황버섯 발효물에 대한 열수추출물을 최고 2 g/kg의 농도로 단회 투여한 SD-rats에 체중 변화, 임상증상 등에서 어떠한 독성도 관찰할 수 없었으며, 1 g/kg 이하의 농도로 4주간 반복 투여한 SD-rats에서도 체중변화, 임상증상, 장기 무게, 혈액학적 성상, 혈액생화학적 성상 등에서 어떠한 독성과 비정상적인 소견을 관찰할 수 없었다. 따라서, 본 연구의 결과로 볼 때 가시오가피 영지버섯 발효물 열수추출물(FM-5111)과 가시오가피 상황버섯 발효물 열수추출물(FM-5131)은 본 연구에서 사용한 농도 내에서의 안전성을 확인할 수 있었다. 황 함유 아미노산의 결핍은 여러 가지 간질환 등의 증상을 야기한다(27). 또한, Choi와 Ahn(28)은 오가피 부위별 50% (v/v) 메탄올 추출액의 전자공여능은 줄기 추출물에서 90.21%, 뿌리 추출물에서 85.71%로 높은 활성을 보고하여 오가피의 항산화능을 규명하였다. 따라서, 본 연구에 사용된 시료 또한 항산화능과 같은 기능성을 가질것으로 사료되며, 추가 연구로 아미노산 분석을 통해 황 함유 아미노산의 함량 변화를 분석하고 간 기능 개선 효능을 평가하여 안전성이 확보된 기능성 식품소재 개발 연구를 진행할 계획이다. In this study, the products of Acanthopanax senticosus fermentation were derived from the mycelia of 2 mushrooms, Ganoderma lucidum and Phellinus linteus, to determine their safety in Sprague-Dawley rats. Rats were orally administered the water extracts of A. senticosus fermentation products with G. lucidum (FM-5111) or P. linteus (FM-5131) at dose levels of 0.5, 1.0, or 2.0 g/kg for the single-dose toxicity test and 0.25, 0.5, or 1.0 g/kg for the repeated-dose toxicity test. There were no significant differences in body weight gain, feed intake, or water consumption between control and FM-5111- or FM-5131-treated rats. Hematological and blood biochemistry analysis revealed that none of the investigated parameters were affected by the A. senticosus fermentation products, and no remarkable lesions were observed upon histopathological analysis. We conclude that the A. senticosus fermentation products obtained from mushroom mycelia are safe for long-term administration and could be considered as multi-functional nutrients for the improvement of liver function and immunity.

Development of a Reduction Algorithm of GEO Satellite Optical Observation Data for Optical Wide Field Patrol (OWL)

Sun-youp Park,Jin Choi1,Jung Hyun Jo,Ju Young Son,Yung-Sik Park,Hong-Suh Yim,Hong-Suh Yim,Hong-Kyu Moon,Young-Ho Bae,Jang-Hyun Park 한국우주과학회 2015 Journal of Astronomy and Space Sciences Vol.32 No.3

An algorithm to automatically extract coordinate and time information from optical observation data of geostationary orbit satellites (GEO satellites) or geosynchronous orbit satellites (GOS satellites) is developed. The optical wide-field patrol system is capable of automatic observation using a pre-arranged schedule. Therefore, if this type of automatic analysis algorithm is available, daily unmanned monitoring of GEO satellites can be possible. For data acquisition for development, the COMS1 satellite was observed with 1-s exposure time and 1-m interval. The images were grouped and processed in terms of “action”, and each action was composed of six or nine successive images. First, a reference image with the best quality in one action was selected. Next, the rest of the images in the action were geometrically transformed to fit in the horizontal coordinate system (expressed in azimuthal angle and elevation) of the reference image. Then, these images were median-combined to retain only the possible non-moving GEO candidates. By reverting the coordinate transformation of the positions of these GEO satellite candidates, the final coordinates could be calculated.

일개 대학병원에 내원한 원발성 폐암 환자의 인구학적 및 병리학적 특성

주혜원,강경필,김민근,박민석,임현민,이현경,이성순,이영민,김주인,염호기,최수전,이혁표 인제대학교 2006 仁濟醫學 Vol.27 No.-

Background : Recently, the lung cancer mortality rank first in Korea. The prognosis of lung cancer is not good enough with current treatments and multimodality treatments are required. So we are interested in the characteristics of lung cancer patients for better treatment. Methods : We searched lung cancer patients since 1994. Then we collected the data of primary lung cancer patients about the demographic features, histologic types and diagnotic methods. We divided the total period into 2 haves and specific analysis was tried. Results : 1) Total 850 patients were included. 633 (74.5%) were male and 217 (25.5%) were female. 2) The mean age was 65 ± 11 years old. and the peak age was 7th decades. 3) Squamous cell carcinoma(334/850, 39.3%) was slightly more prevalent than adenocarcinoma(302/850, 35.5%). Conclusion : From these results, we expected that older persons will be diagnosed to have lung cancer and adenocarcinoma will be more dominant histologic type with time.

Wavelet 변환을 이용한 HIS 컬러영역에서의 디지털 칼라 영상의 Watermarking

최익환,최현주,최흥국 인제대학교 2002 仁濟論叢 Vol.17 No.1

디지털 워터마킹은 디지털화 된 영상자료의 저작권 보호에서 매우 활발히 연구되고 있는 분야이다. 디지털 영상의 불법적인 내용 조작을 막고, 영상의 소유권을 보장할 수 있는 방법으로 워터마킹이 쓰인다. 본 논문에서는 컬러 영상에 대한 명암도를 이용하여 공간 영역에서 시각에 덜 민감하게 정보를 은닉하기 위해 HIS 컬러영역에 wavelet 변환을 적용하고 인간의 시각에 덜 민감한 고주파 영역에 워터마크를 삽입하였다. Digital Image Watermarking(DIG) is very active research in protection copyright of digitized media. Watermarking used for protect digitized media against illegal operation, for protection of property. In this paper, using property of discrimination between achromatic color and chromatic color, insert watermark in high frequency domain using wavelet transform.

치아 순면 형태가 측색 기기를 이용한 치아 색상 측정 결과에 미치는 영향

최용진,박수정,조현구,황윤찬,오원만,박병주,황인남 대한치과보존학회 2007 Restorative Dentistry & Endodontics Vol.32 No.5

급성 진행형 국소 신경학적 증상을 보인 쯔쯔가무시병 1예에서 고용량 스테로이드의 사용

최현철,위성헌,이소연,김상일,박성경,정연주,정소령,전정수,강문원 대한감염학회 2002 감염 Vol.34 No.6

DCT를 이용한 영상의 윤곽선 추출을 위한 양자화 테이블 비교분석

최현주,성병우,최흥국,서재현 인제대학교기초과학연구소 1998 자연과학 Vol.2 No.-

본 논문에서는 DCT(discrete consine transform)를 이용하여 영상 데이터를 공간 영역에서 주파수 영역으로 변환하여 주파수 영역별로 분해한 뒤, 윤곽선 추출과 압축을 동시에 하기 위한 여러 양자화 테이블을 적용하고, IDCT(Inverse DCT)를 이용하여 복원한 결과를 비교 분석함으로써, 보다 정확한 윤곽선을 가진 영상을 추출할 수 있는 양자화 테이블을 구했다. 이 양자화 테이블을 DCT 처리된 영상에 적용했을 때 윤곽선과 압축 효과를 가진 영상을 얻을 수 있었다. In this paper, we transform image data from spatial domain to frequency domain using DCT, decompose it into each frequency band. We apply various quantization table for edge detection and compression simultaneously. We researched a quantization table for extracting image with exact edge, as compare and analyze restored images using IDCT. When we applied this quantization table to the DCT transformed image, acquired the image with edge and compression effect.

대학교 대형강의실의 조명조건별 조명환경평가

최윤정,이상운,조현주 충북대학교 교육 ·생활연구소 생활과학연구센터 2003 생활과학연구논총 Vol.7 No.1

The purposes of this study are to evaluate the lighting environment of a university assembly hall and to make clear the problems of conditions of lighting operation. The field measurement on the illumination level and the questionnaire survey on subject response of the lighting environment with students were carried out at an assembly hall in C university, Cheongju. These survey were taken on 4th and 9th of December, 2002. The illumination levels of the assembly hall in the condition A (157∼403 lux) were lower than standard (400lux). The illumination levels of the condition B (16∼372 lux) and condition C (0∼1 lux) were poor. The illumination levels of the condition D (231∼510 lux) were somewhat lower than standard. It was found that the present condition of the lighting environment of the university assembly hall is inappropriate illumination level and uniformity for lecture.

송아지고기 소시지와 시중에 판매되는 우육과 돈육 소시지 제품의 저장특성 비교

이주호, 최정석, 이현진, 정구용, 최양일 忠北大學校 農業科學硏究所 2013 農業科學硏究 Vol.29 No.1

This study was undertaken to compare the storage characteristics between veal sausage and commercial pork and beef sausages in Korean domestic market. We manufactured 3_types of sausages and purchased 2_types of sausages in the market: T1(B-company product), T2(O-company product) and we made T3(smoked veal sausage), T4(smoked veal sausage with pepper) and T5(cooked veal sausage) products. During 20 days of storage at 4oC, T5 showed significantly higher in TBA value and VBN value (p<0.05). But TBA and VBN values showed normal range in all products. T3, T4, and T5 showed higher total microbial count than T1 and T2 (p<0.05). According to the result, beef and pork sausages in the market showed different total microbial count and VBN values from those made in laboratory. This result could be come from the different additives used and manufacturing processes. However, all products can be stored up to 20 days in the cooler.