• 한국식품위생안전성학회지
• /
• 제23권4호
• /
• pp.314-318
• /
• 2008

This research aimed to compare the detection methods of Anisakis simplex in Sea fish by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and macroscopic inspection. We examined 18 Trichiurus lepturus, 11 Scomber japonicus, and 65 Todarodes pacificus collected from the retail markets in the areas of Uljin, Kyuonggi province and Seoul. As the result of examinations, we found that detection rate of Anisakis simplex by macroscopic observation was 89% in Trichiurus lepturus, 90.9% in Scomber japonicus, 32.3% in Todarodes pacificus. The detection rate of Anisakis simplex by PCR-RFLP was 77.7% in Trichiurus lepturus, 81.8% in Scomber japonicus, 26.1% in Todarodes pacificus. We could conclude that PCR-RFLP method of Anisakis simplex was more specific rather than macroscopic observation.

• 한국식품과학회지
• /
• 제27권4호
• /
• pp.546-554
• /
• 1995

양상추의 선도 연장 및 저온유통시스템 도입을 위하여 특별히 설계, 제작한 실험용 진공예냉장치를 이용하여 예냉처리한 후 저온유통시키면서 선도 연장 효과를 조사하였다. 양상추의 호흡 속도에 대한 온도계수$(Q_{10})$는 $1.7{\sim}2.4$, 초기 빙결점은 $-0.2^{\circ}C$로 나타났으며, 진공예냉장치를 이용해 30분 이내에 $0^{\circ}C$까지 냉각이 가능하였다. 한편 기존의 상온 유통, 예냉처리후 냉장차, 보냉차 및 상온트럭을 이용한 수송 과정중의 품온 변화가 측정되었다. 아울러 처리 방법별로 수송후 $5^{\circ}C$에 저온 보관중 품질 변화가 조사되었으며 진공예냉후 냉장차를 이용해 수송한 경우 기존 상온 유통 양상추에 비하여 저장기간이 90% 이상 연장되었다.

• 한국식품위생안전성학회:학술대회논문집
• /
• 한국식품위생안전성학회 2005년도 추계 국제심포지움 및 정기학술발표회
• /
• pp.159-173
• /
• 2005

• Journal of the Korean Society for Industrial and Applied Mathematics
• /
• 제22권3호
• /
• pp.179-199
• /
• 2018

The paper explores a tri-trophic food chain model with density dependent mortality of intermediate predator. To analyze this aspect, we have worked out the local stability of different equilibrium points. We have also derived the conditions for global stability of interior equilibrium point and conditions for persistence of model system. To observe the global behaviour of the system, we performed extensive numerical simulations. Our simulation results reveal that chaotic dynamics is produced for increasing value of half-saturation constant. We have also observed trajectory motions around different equilibrium points. It is noticed that chaotic dynamics has been controlled by increasing value of density dependent mortality parameter. So, we conclude that the density dependent mortality parameter can be used to control chaotic dynamics. We also applied basic tools of nonlinear dynamics such as Poincare section and Lyapunov exponent to investigate chaotic behaviour of the system.

• 한국식품과학회지
• /
• 제21권6호
• /
• pp.832-837
• /
• 1989

포도주 발효에 사용되는 호모균주 12종을 Murphy배지에 배양하여 중간크기의 지방산(MCFA)의 생성을 분석하였고 발효조건에 따라 그 생성량을 관찰하였다. 특히 발효력이 강한 Saccharomyces cerevisiae에 속하는 균주들은 발효초기에 decanoic acid를 약 21-26mg/1 생성하였고 발효 후기에는 약 5-10mg/1로 감소하였다. 발효조건에서 볼 때 MCFA의 생성은 온도가 높을수록 감소하였고 당함량이 클수록 증가하였으며 또한 탄산가스의 존재 하에서도 증가하였다.

• Journal of Radiation Protection and Research
• /
• 제16권2호
• /
• pp.67-74
• /
• 1991

육상 섭취 경로에 따른 내부 피폭선량 계산 모델 KFOOD의 파라메터 불착실성 및 민감도를 몬테칼로법을 사용하여 수치 분석하였다. 쌀을 통한 섭취 경로의 경우 KFOOD 코드에 의한 예측치는 아주 보수적인 값을 나타내었다 모델에서 민감도가 큰 입력변수는 방사능의 침적속도와 식물전이제수였다.

• International journal of advanced smart convergence
• /
• 제10권3호
• /
• pp.207-213
• /
• 2021

Informatization and digital transformation across industries are big trends in the world. However, although a few food groups are investing in informatization on a pilot basis, informatization is still delayed in related industries, such as distribution, logistics, etc. Therefore, consumers often are not able to have easy access to detailed information about products. In this paper, to improve these problems, we propose a fresh food logistics solution that adopts Proof of Nonce (PoN) consensus algorithm with Internet of Thing (IoT) technology. The recently developed PoN algorithm dramatically reduces a time for generating a block and is suitable for a platform that collects and services real-time information. We expect to improve their trust in the platform by preventing forgery/falsification of information recorded in real time through this paper.

• 한국식품조리과학회지
• /
• 제19권5호
• /
• pp.624-630
• /
• 2003

The physicochemical properties and antioxidant activities of commonly consumed espresso and regular coffees, at coffee shops in downtown Seoul, were investigated. Moreover, the characteristics between chain type coffee shops and owner shops were compared using t-tests. The serving temperature and volume of espresso were lower than those for regular coffees. Whereas, the pH and total acidity of espresso were higher than those for regular coffees. Coffees from chain shops, in particular, had a significantly higher pH and lower total acidity than those from owner shops. The L, a and b values of the regular coffees were higher than those of the espresso coffees. With the exception of the a value of regular coffees, all the color values of the coffees from owner shops were higher than those from the chain shops. The intensity of the brownness, soluble solid contents and total phenolic contents of the espresso coffees were about 7∼8, 8∼9 and 4 times higher, respectively, than those of regular coffees. In addition, the free radical scavenging capacities and antioxidant activities of the espresso coffees, using a chemiluminescence assay, were higher than those of regular coffees. Espresso coffees from chain shops, especially, had higher activities of free radical scavenging than those from owner shops. In conclusion, the characteristics of coffees from chain shops were significantly different from those from owner coffee shops.

• 수산경영론집
• /
• 제46권3호
• /
• pp.51-61
• /
• 2015

The purpose of this study is to find food safety approach in the Eco-label Chain of Custody(CoC) which is only focused to traceability. Because, consumers want to be assured the certified seafood comes from sustainable fishery as well as hygienic. In order to this approach, we used Analytic Hierarchy Process(AHP) method as belows. We first understood the CoC criteria for using pair-wise comparison and analyzed and selected each Eco-label certifications and standards. Second, we carried out a survey to the targeted standard Marine Stewardship Council(MSC) CoC auditors all over the world and analyzed the priorities of food safety approach to 4 principles and 12 criteria belong the MSC CoC Standard. As the results, we found out that 'Management System' has the highest priority in the principles and 'Documentation' and 'Keeping Record' are the most important criteria for this approach. In addition, 'Training' and 'Identification' are also higher priority of criteria. So, we suggested food safety approach method for improvement of these criteria in conclusion based on discussion with specialist in this field.

• 한국미생물·생명공학회지
• /
• 제49권1호
• /
• pp.18-23
• /
• 2021

The aim of this study was to determine the production of folate, short chain fatty acids (SCFAs), and antimicrobial activity exhibited by Lactobacillus plantarum G72 for potential dietary application in pregnant women. L. plantarum G72 has been reported to possess characteristic activities and functionality including β-galactosidase activity and antioxidant activities. L. plantarum G72 showed antibacterial activity against pathogenic bacteria (Listeria monocytogenes ATCC 15313, Salmonella typhimurium P99, Escherichia coli ATCC 25922, and Staphylococcus aureus KCCM 11335) using a modified method, and formation of the largest inhibition zone was observed against S. aureus KCCM 11335 (12.0-17.0 mm). The adherence of four food-borne pathogenic bacteria to HT-29 cells was inhibited by L. plantarum G72 (0.13 to 0.92 log CFU/ml). The most considerable inhibition of adherence to HT-29 cells was observed by using L. plantarum G72 against S. typhimurim P99. Additionally, folate production by L. plantarum G72 was 50.1 ng/ml, and L. plantarum G72 produced relatively more lactic acid (11,176.73 mg/kg) than acetic, propionic, or butyric acids. Therefore, the results of this study suggest that L. plantarum G72 may serve as a multifunctional food additive in the health industry.