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Effects of Extrusion Conditions on Pasting Properties of Potato and Potato : Wheat Flour Mixture
Cha, Jae Yoon,Cho, Yong-Jin,Kim, Chong-Tai,Kim, Chul-Jin,Ng, P. K. W. 한국산업식품공학회 2003 산업 식품공학 Vol.7 No.2
The purpose of this study was to develop extrusion process of fresh potato and to study the effects of extrusion condition on the pasting properties of extruded potato products. The blend of pressed potato and wheat flour and pressed potatoes were extruded at different die exit temperatures (110-160℃) and screw speed of 100 rpm using a twin-screw extruder with conveying, high and low shear screw configuration. The viscosity-related parameters, such as peak viscosity, through, final viscosity, peak time, and pasting temperature of the feed materials and extruded products, were studied using a rapid visco analyzer (RVA). Their water solubility index (WSI) and water absorption index (WAI) were also studied. The peak viscosity, through, final viscosity, and peak time of pressed potato extrudates and potato-wheat flour mixture extrudates decreased as die exit temperature increased. The WSI and WAI of potato products increased as die exit temperature increased. When high shear screw configuration was used, the values of viscosity-related parameters were lower than those when low shear screw configuration was used. The potato-wheat flour mixture products obtained different degrees of depolymerization from fresh potatoes and wheat flour depending on die exit temperature and screw configuration.
김종태,김철진,조용진,전보연 한국산업식품공학회 2004 산업 식품공학 Vol.8 No.1
Nanotechnology represents a new frontier in science and technology with long term goal and benefits. Nowdays, nanotechnology is producing many revolutions and applications such as quantum computing, surface and materials modification, novel swparation and sensing technologies, and human biomedical replacements. These new techniques are being introduced in food and cio filed. In this review, the status and trends related to nanocomposites, nanoparticles, nanoyubes, delivery vehicles and biosafely were reviwed. The situation of funding of nanotechnology research in USA, Japan and Korea is also summarized.
1972년 8월 서울시내 침수지역하수에서 대한 장내병원균 분리상태
김성희,김우식,고광균,이연태,이종훈 中央醫學社 1974 中央醫學 Vol.26 No.5
Bacteriological survey was performed with the 81 seweage specimens taken from the flooded areas in Seoul City (Young; dungpo-Ku, Yongsan-Ku, Mapo-Ku, Seongdong-Ku and Seodaemoon-Ku) during August, 1972. Thirteen strains of enteric pathogens were isolated. from their specimens of the 13' strains of isolates, 5 strains of Salmonella species, 6 strains of Shigella and 2 strains of Vibrio parahaemolyticus were confirmed by means of biological, biochemial and serological test, respectively.
李淵台,李潤日,金慶淑,金明淑,李鍾訓 中央醫學社 1973 中央醫學 Vol.25 No.3
Bats seemed to be a susceptible animals to infection with some arboviruses but insufficient evidence precludes the determination of their relative importance in maintaining the Japanese encephalitis virus in nature. An attempt was made to evaluate the neutralizing antibody against Japanese once halitis virus on the sera of bats. The eighty-four serum samples were obtained from bats (Pipistrellus abramus Temminck) which were captured at the Mt. Song-Chu and Mt. Do-Bong in July, 1971. Neutralizing antibody against Japanese encephalitis virus was demonstrated from 5 (6.0%) out of 84 serum specimens by means of plaque inhibition method.
李淵台,金敬淑,李潤日,金明淑,李種訓 최신의학사 1973 最新醫學 Vol.16 No.9
Growth of Russian spring-summer encephalitis virus in established line of mosquito (Sigh's Aedes albopictus) cells was studied by infectivity ' titration of mouse lethal doses and observation of morphological changes on the infected cell monolayers. The cell line could support the multiplication of Russian spring summer encephalitis virus. The maximum virus titer of 10''0 mice LD50 was reached in 3 days after virus inoculation. Cytopathic effect was found on the whole monolayer from second post infective day and large round spherical cell aggregates were observed theereafter.
오선미,김종학,황평주,구영선,강민규,나기량,김종섭,김성숙,이강욱,신영태,설종구,배진선,손기섭 충남대학교 의과대학 지역사회의학연구소 1997 충남의대잡지 Vol.24 No.2
To investigate the prognostic factors for the survival of transplanted kidney in patients with end-stage renal failure, 59 cases of renal transplantation from September 1986 to Feburary 1997 in Chungnam National University Hospital were analyzed retrospectively. The results were as follows: 1)The mean age of recipients was 33.8 years and that of doners was 38.9 years. The male to female ratio of recipients was 2.5:1, and that of donors was 1.03:1 2) Living related donore(LRD) were 79.6% and living non-related donors were 20.3%. The HLA-identical donors(ID) in LRD were 18.7% and HLA-haploidentical donors(HID) were 61.0%. In living non-related donors(LNRD), mean matched HLA-AB antigens were 1.56 and mean matched HLA-DR antigens were 0.56. 3) The average 5-year patient survival fate was 94%, and average 5-year graft survival rate was 70%. The 5-year graft survival fate of HLA-ID was 100%, and those HLA-HID and LNR were 70% and 36% respectively. 4) Total 33 episodes of acute rejection were found in 45.8% of transplanted patients. The number of acute rejection episode did not show significant difference between LRD and LNRD(P > 0.05). There was no significant difference in MLC between two groups(p > 0.05). 5) In comparison between the 18 patients who lost their graft function in 5 years and 17 patients who are maintaining graft function for more than 5 years, MLC was significantly lower in patients with functioning graft than of patients with non-functioning graft (p < 0.05). The number of rejection episode was also lower in patients with functioning graft than that of the patients with non-functioning graft(p < 0.05). However, there were no significant difference in recepient and donor age and history of pre-transplantation donor specific transfusion between two groups. With the results above, we can speculate that adequate donor selection according to good matched HLA typing and low MLC is very important for graft survival in renal transplantation. Prevention and treatment of acute rejection in renal transplantation is also na important factor for graft survival.