One of the most important habitats of Waterbirds in the west coast of Korea is Saemangeum and its mudflat, located within the estuary of the Dongji and Mankyung River. This study was conducted to clarify the community characteristics of wintering waterbirds in Saemangeum from November 2008 to February 2009. Waterbirds and Raptor are 69 species and 409,044 individuals by the sum of peak counts were recorded. We classified the wintering waterbirds into 14 groups of taxa based on the similar ecological attributes. The dominant species were Baikal Teal Anas formosa, Mallard Anas platyrhynchos, Greater White-fronted Goose Anser albifrons, Greater Scaup Aythya marila. Greater White-fronted Goose was significantly positive correlated with survey period. Baikal Teal, Greater White-fronted Goose, Bean Goose, Greater Scaup, Common Shelduck Tadorna tadorna were increased when compared with last report but Mallard, Spot-billed Duck Anas poecilorhyncha, Dunlin Calidris alpina were no difference.
With transmitted dose through chest which has the problem of wide variations in absorption, simple film/screen combination method makes it diffucult to image lung field, mediastinum and retrocardiac areas. In order to overcome this, it is very common to use the high kilovoltage technique in diminishing the differences between high and low contrast. We have been adopting this method at department of diagnostic radiology, Seoul National University Hospital. To compare the image of it with that of low kilovoltage technique, we did radiographic tests using beans on the skin. We marked off into three anatomical categories such as lungs, mediastinum and near diaphragm, then attached a bean on a marked area at random. In order to compare with high and low, we took a radiography of high($120{\sim}140\;kVp$) and low($70{\sim}90\;kVp$) kilovoltage tehchniques, respectively at the same time. We have done experiments 320 cases. We evaluated the results of test in response to sensitivity(true positive) and specificity(true negative). In evaluating, we gave them points from 1 to 5 according to true or false. With given points by a radiologist having much experiences, we could acquire the percentage of sensitivity and specificity. The percentage made us to get the schematic table of ROC curve of those two methods. Consequently, high kilovoltage technique appeared 18% better than low kilovoltage technique for detecting beans with our apparatus.
Soy bean is one of the most common food material to cause food hypersensitivity reactions in Korea. In this study we have investigated the effect of heating on antigenicity and allergenicity change of soybeans by using immunoblotting and ELISA methods with serum of soybean allergic patients and polyclonal antibody against soybean proteins. Soybean proteins were extracted by one-hour heating in boiling waterbath and separated by SDS-PAGE. After heat treatment, no significant changes of soy protein patterns were observed in SDS-PAGE analysis. Furthermore, the heat treatment had no effect on the results in immunoblotting with polyclonal antibody as well as in ELISA with soybean allergic patients' serum. With these results it may be concluded that allergenicity and antigenicity of soybeans do not reduce by thermal treatment.
The present study was investigated on type 2 diabetics' actual status of anti-diabetic functional food intake by patients who came to oriental medicine clinics in Daejeon. The male was 37.3% and female was 62.7% of the subjects. The onset of the disease was most common in the age of 50's. Also 40% of the subjects have been suffering for more than 5 years. 35.7% of men, 53.2% for women had family history. Also 61.5% of the patients chose to carry out both diabetic therapy and exercise at the same time. 69.3% of the subjects have had experiences in anti-diabetic functional foods. Anti-diabetic functional foods used to surveyed people were bean, ginseng, and ginseng steamed red of which efficacies were already well known. Besides these foods, other foods such as loach, crucian carp were also used as anti-diabetic foods, but their benefits as anti-diabetic functional foods are not yet fully investigated. Subjects first knew about the therapy because friends or relatives recommended to them and most of them have used for 6 months to 1 year. However, 78.9% of subjects answered 'not so effective' in a question about satisfaction of anti-diabetic functional food. Although many of the patients have tried taking functional foods, they only use them for short period of time and they don't show prominent effect. Therefore these results suggest that in order to use scientifically studied functional foods, education about anti-diabetic functional foods should taken.
Korea supposed the place of origin of soybean. Although it is speculated that it was edible in the era of the Three Kingdoms(A.D. 5-9C), there is no documentary evidence. The first record about the edibility of tofu was written down in the Goryeo dynasty, and there was several documents that tofu was exported to China and Japan in the Chosun dynasty due to excellent manufacture skills for tofu. Tofu has been a good source of protein as a food for the common people, though there were not many traditional kinds. Especially, tofu has been an important vegetarian foodstuff in a Buddist temple, and has been used for vegetable soup and skewered greens necessary for the sacrificial rites of the humbler class as well as of the royal court. We frequently made sliced raw tofu and fried tofu, and it was used for broil, stew, and casserole as well as stuffing. In addition, tofu and its bean-curd dregs were applied of making soy. In China it is assumed that tofu has been eatable since the time of the Han(AD. 1C). Chinese tofu and its products are various and generally 20 different varieties are used. There are many dishes applied of tofu. salted and plain tofu were used as Chinese appetizer dishes. Plain, salted, skinned or deep-fried tofu was stir-fried in an hot oiled pan with vegetables, meats and fishes. Additionally, there are a variety of tofu dishes utilized stewing, frying, steaming, and soup cookeries. Tofu first appeared in the era of the Nara(8C) of Japan and was come into wide use in the era of the Aedo(Tokyo). In Japan tofu and its products are various and introduced in Shojin cookeries prevalent in the Buddist temples. It is especially noticeable that frozen or skinned tofu was used for these. Japanese tofu cooking is more delicate than Korean and Chinese ones, and Japanese people do not use oil. Instead, they in general utilize steaming and broiling cookeries. In the western countries the history of tofu edibility is short. However, their practical application of tofu in the dietary life is very positive.
Rhinitis and sinusitis are among the most common medical conditions in Korea, as well as Western societies. Environmental factors may influence both rhinitis and sinusitis; however, the role of dietary factors in rhinitis and sinusitis is not clear. The present study aims to compare the dietary habit, food consumption frequency, and food preference of elementary school students with or without rhinitis and sinusitis. The demand of their parents for an education program for the dietary prevention against rhinitis and sinusitis was also examined. The survey was conducted with a total of 200 subjects recruited from two elementary schools located in Gyeonggi area of Korea. The subjects consisted of 101 students with rhinitis and/or sinusitis (RS group) and 99 without rhinitis and sinusitis (control group). The students of the RS group were more likely to have habits of eating-out and street food use, to consume bean, peanut, walnut, almond, yogurt, egg, snack, and French fries frequently, and to prefer the types of foods prepared by stir-frying and deep-frying than the control group. The parents who recognized 'school nutrition teachers or food/nutrition-majored specialists' as the most appropriate educator for the dietary education program in the RS group (48.5% of their parents) were less than those in the control group (67.7% of their parents). The present study suggest that students with rhinitis and/or sinusitis may be different from those without the disease(s) in their dietary habit, frequently consumed foods, and preferred type of foods. More epidemiological, intervention, and laboratory studies are needed in order to elucidate the role of dietary factors in the development and prevention of rhinitis and sinusitis, which will have a significant implication to public health.
Weeds are widely grown in the field and are infected by many viruses. A survey was conducted to identify viruses infecting weeds in Korea. Virus-infected weed samples including Rorippa indica (L.) Hiern, R. islandica (Oed.) Bord, Crepidiastrum denticulatum (Houtt.) Pak & Kawanno, Achyranthes japonica (Miq.) Nakai, and Chrysanthemum boreale (Makino) Makino were collected in Kyonggi Province. These weeds were grown in the greenhouse and were isolated on 10 test plants. Several virus isolates were isolated fron infected tissues and were further studied by host range assay, serological test, electron microscopy (EM), reverse transcription-polymerase chain reaction (RT-PCR) and sequencing. Each isolated virus strain was mechanically transmitted to weeds and various hosts including Nicotiana spp., Brassica spp., Vigna unguiculata, Capsicum annuum, and Cucumis sativus and showed systemic mosaic, vein clearing, necrosis, mottle, malformation, chlorosis, and/or death of host plants in some cases. Each virus was then purified using infected leaves and observed by EM. From these results three viruses were isolated and identified as Turnip mosaic virus (TuMV), Broad bean wilt virus (BBWV), and Cucumber mosaic virus (CMV). RT-PCR using virus-specific oligonucleotide primers and the cloning were conducted to determine the nucleotide sequences of coat proteins of the three viruses their amino acid sequence were deduced. The amino acid sequence homologies were about 92.7 to 99.7%, 96.2 to 97.7%, and 93.9 to 98.6% to other reported TuMV, BBWV, and CMV strains, respectively. These results suggest that many weeds may serve as primary inoculum source of diseases caused by TuMV, BBWV, CMV and that the management of these viral diseases can be achieved through weed control.
Acculturation may manifest dietary behavioral changes of students from overseas. This study investigated the dietary attitudes, food intakes, and dietary behaviors of 121 Chinese college students residing in Busan, Korea. Using a focus group interview and structured survey, subjects were divided into two groups (SG, LG) based on their self-rated acculturation status. The SG (n=70) and LG (n=51) groups consisted of participants that had resided in Korea for shorter than 18 months versus 18 months or longer, respectively. The SG group was more likely to point out the taste of Korean foods as being too sweet, salty, and spicy but less greasy. A food frequency questionnaire was developed to assess normal intake of Korean ethnic, Chinese ethnic, and common foods. The LG group consumed more Korean foods such as rice cake, dried laver, and radish kimchi but less Chinese foods such as bread glue ball and kidney bean. The LG group consumed more salty and fatty foods and Korean liquors, whereas the SG group consumed more fruits and noodles. Based on the exploratory factor analysis, the SG group showed significantly higher scores for "dietary regularity" but lower scores for "indulgence of unhealthful food" factors. In summation, the LG group became more accustomed to Korean foods and adopted less desirable dietary behaviors compared with the SG group. Findings suggest that the residential period of Chinese college students may be associated with their self-rated acculturation status and food acculturation process, and therefore tailored nutrition education programs are needed to support Chinese students' healthier dietary behaviors and food acculturation process.
Ten cases with esophageal foreign body were treated surgically from July 1980 to October 1995 at the Departme t of Thoracic and Cardiovascular Surgery, Chungnam National University Hospital. The mean age was 45.3 years, with a range from 25 to 71. Out of ten cases, 6 were female and four were male. Common symptoms were dysphagia, fever, foreign body sensation and neck pain. Three cases of foreign bodies were of fish bones, two of bubble paclcage of drugs, one case of a Eeer bottle cap, one of a piece glass, one of a bathtub plug, one of chicken and one of a bean. The diagnosis was established by esophagography using a water soluble contrast material and esophagoscopy. Among of ten cases, two had esophageal stricture due to the ingestion of Aye at a young age. One case had experienced psychological problems. All foreign bodies were removed by surgical procedures. Five cases were treated by cervical esophagostomy, one case by right thoracotomy, one case by retrograde bougienation through gastrostomy and two cases by cervical incision and drainage for cervical abscess. Three cases developed pos operative esophageal leaks which healed spontaneously and transient hoarseness developed in one case. One case developed traumatic pneumothorax and subcutaneous emphysema which was treated by closed thoracostomy. There were no operative deaths. C(ocean J Thorac Cardiovasc Surg 1997;30:1117-20)
Journal of the Korean Society of Food Science and Nutrition
/
v.29
no.5
/
pp.948-956
/
2000
There is growing evidence that soy isoflavone play beneficial roles in the prevention of chronic diseases such as hormone dependent cancers, cardiovascular diseases, osteoporosis and also reduced incidence of menopausal symptoms. However current data are not sufficient to determine the effective doses for beneficial as well as harmful effects and to support dietary recommendation for isoflavones. Since soy products containing isoflavone are one of the common food items that Koreans consume daily basis, assessing consumption of soy isoflavone by Koreans will give a valuable information on making dietary recommendations for isoflavones. the present study was designed to assess dietary intake of isoflavone of Korean middle-aged women who might receive the most beneficial effects from isoflavone consumption thereby prevent post menopausal related symptoms and diseases. In this study isoflavone contents of soy products were analyzed and soy products and isoflavone consumption of these subjects were assessed by a self-reported dietary questionnaire and isoflavone intake data base. Subjects were consisted of 178 Korean women (35~60 y) who live in urban and rural area. All subjects provided detailed information on demographics, anthropometry, health history, menopausal symptoms, health history, menopausal symptoms, and dietary intake using food frequency questionnaire (FFQ) which was developed for Koreans. The average age of the subjects was 46.6 years. The soy products which the subjects frequently consumed were soybean paste soup, braised fried soybean, tofu residue stew, tofu, soy milk, natto stew, bean sprouts, and soybean broth which contained 10.68 mg, 3.34 mg, 2.44 mg, 2.42 mg, 2.42 mg, 1.12 mg, 1.02 mg, 0.33 mg of isoflavone per 100 g, respectively. The estimated daily intake (EDI) of isoflavones ranged from 0 to 144.3 mg, and the mean daily isoflavone (sum of daidzein and genisten) intake of the subjects was 24.41 mg.
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