• Korean Journal of Food Science and Technology
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• v.39 no.1
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• pp.25-28
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• 2007

A survey of total aflatoxin levels was conducted on 565 food samples (cereals, nuts, etc) collected in commercial markets. The determination of aflatoxins ($B_{1}$, $B_{2}$, $G_{1}$ and $G_{2}$) was performed using HPLC with fluorescence detector. The Limit of Detections (LODs) of the B group and G group were 0.05 ng/g and 0.07 ng/g, respectively. In addition, recoveries of rice, peanut butter, and red pepper flour were satisfactory. Total aflatoxin was detected 27 samples(4.8%) out of 565 samples. Incidence ratios in cereals, nuts, processed products, and other foods were 0.2, 0.4, 3.0 and 1.2%, respectively, but aflatoxin was not detected in pulse and dried fruits. The daily intake of total aflatoxin using food intakes was 0.04 ng/kg bw/day.

• Journal of the Korean association of regional geographers
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• v.14 no.1
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• pp.54-67
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• 2008

This paper is to analyze the relationships between the factors of choice attributes and the related satisfaction focused on Domestic tourists in Jeju region. First, this paper used the structural equation model with the questionnaires to investigate the attributes affecting the visitors' satisfaction and service value. In conclusion, the attribute factors influencing service value and the visitors' satisfaction are 'equipment and convenience' and 'culture and leisure'. Also, this paper presents that the 'foods' factor is affecting re-visit and others' recommendation through the mediation of satisfaction factor.

• Korean Journal of Food Science and Technology
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• v.37 no.6
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• pp.889-892
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• 2005

Standardized method based on extraction, filtration, and gas chromatography (GC) was developed far propylene glycol analysis to set hygienic norm of safety measure for foods under governmental control. Various columns were tested fur propylene glycol analysis by GC with flame ionization detector. Known amount of propylene glycol was spiked into wheat flour dough and analyzed by developed method. Results showed 101.60% recovery rate for propylene glycol with HP-5 column. Reproducibility test of standards recorded 0.30 for standard variation and 0,42% for relative variation. Using analytical method established, contents of propylene glycol in more than hundred different foods were monitored. Propylene glycol was detected in most foods, indicating propylene glycol is not only commonly added during food preparation, but also is contained naturally in food.

• Journal of Dairy Science and Biotechnology
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• v.28 no.2
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• pp.13-18
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• 2010

Electron Spin Resonance (ESR) spectroscopy has been used to detect the presence of radiation-induced free radicals in biological samples since the mid 1950s and to irradiate foods containing cellulose, crystalline sugar, and bone. Therefore, we analyzed the ESR spectrum of irradiated infant formula and its ingredients in this study. Samples were irradiated with 2 different radiation sources of $^{60}Co$ gamma rays and electron beams (EBs), and the absorbed doses were 0, 1, 3, 5, and 7 kGy. ESR measurements were performed under normal atmospheric conditions using a JEOL JES-FA100 spectrometer equipped with an X-band bridge. Irradiated infant formula showed anunsymmetrical spectrum ($g_1$=2.0050, $g_2$=2.0006); in contrast, non-irradiated samples showed asymmetrical spectrum. The ingredients of irradiated samples showed a multi-component ESR signal in glucose and lactose and a singlet-type spectrum in milk powder (g=2.0050). $R^2$ of the dose-response curve showed a fine linearity of over 0.95 across the entire sample. We also compared the spectra of identical samples irradiated with $^{60}Co$ gamma rays and EBs, because EBs can be used for food irradiation in foreign countries, although this is not permitted in Korea. However, we could not find any significant differences according to the types of radiation source. Thus, ESR spectroscopy can be used to detect irradiated infant formula and several types of primary ingredients in this formula.

• Journal of Food Hygiene and Safety
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• v.27 no.4
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• pp.456-460
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• 2012

This study was carried out as a survey on the level of lead (Pb), cadmium (Cd), arsenic (As) and mercury (Hg) in 5 items of agricultural products (lettuce, pumpkin, head lettuce, cabbage and crown daisy) for which safety guidelines are not yet established in Korea. The 407 samples were collected from local markets in 9 regional places and the levels of metals were measured by ICP-MS and mercury analyzer. The average levels of Pb, Cd, As and Hg were 0.026, 0.018, 0.008 and 0.003 mg/kg for lettuce, 0.002, 0.001, 0.001 and 0.0006 mg/kg for pumpkin, 0.002, 0.005, 0.001 and 0.0005 mg/kg for head lettuce, 0.001, 0.002, 0.0002 and 0.0006 mg/kg for cabbage and 0.022, 0.014, 0.006 and 0.004 mg/kg for crown daisy. For risk assessment, the daily dietary exposures of Pb, Cd and Hg by intake of these agricultural products were calculated and compared with PTWI (provisional tolerable weekly intake) established by JECFA. The daily dietary exposure of heavy metals by intake of these agricultural products were 0.13, 0.56 and 0.09% of PTWI, respectively. These monitoring results will be utilized as fundamental data for the establishment of Korean standards of Pb, Cd, As and Hg in 5 items of agricultural products and valuable source for DB construction for science-based safety control of heavy metals in foods including agricultural products.

• Culinary science and hospitality research
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• v.10 no.4
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• pp.15-30
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• 2004

The aim of the present study was to investigate the effect of Dong-In dong Steamed rib on recognition degree of a citizen for popularization and publicity of a local food. A total of 201 adults, 99 women and 102 men aged over the 20 years, participated in this study. The subjects were all from Dae gu city. This analyses of data were conducted by SPSS for WINDOWS, Version 10.0. First, Dong-In dong steamed rib in Dea gu was thought of as a local food. Second, the steamed rib was recognized as a local food with an international reputation. Third, there were no significant differences in preference, local area, recognition, standard and relation between the rib and other local foods. Therefore, the present findings present the needs of public information, development, preservation and success for internationalization of a local food with the national financial and political support.

• Journal of Evidence-Based Herbal Medicine
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• v.3 no.1
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• pp.19-23
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• 2010

Gyeongsangbukdo is nation's leading producer of medicinal crop. Based on this, Gyeongbuk-specific measures for the development of oriental medicine industry is proposed. The aim is the development of oriental medicine industry and regional economic in Gyeongbuk. Production, research and development, manufacturing, distribution are constructed in industrial cluster. And each step need a quality control strictly. In production field, make the seed valley of medicinal crop and Good Agricultural Practice park. In research and development field, study on efficacy of oriental medicine with Good Laboratory Practice. In manufacturing field, make industrial park for foods, dietary supplements and drugs with Good Manufacturing Practice. In distribution field, supports advanced distribution program with Good Supply Practice.

• The Plant Pathology Journal
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• v.38 no.2
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• pp.53-77
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• 2022

The global nematicides market is expected to continue growing. With an increasing demand for synthetic chemical-free organic foods, botanical nematicides are taking the lead as replacements. Consequently, in the recent years, there have been vigorous efforts towards identification of the active secondary metabolites from various plants. These include mostly glucosinolates and their hydrolysis products such as isothiocyanates; flavonoids, alkaloids, limonoids, quassinoids, saponins, and the more recently probed essential oils, among others. And despite their overwhelming potential, variabilities in quality, efficacy, potency and composition continue to persist, and commercialization of new botanical nematicides is still lagging. Herein, we have reviewed the history of botanical nematicides and regional progresses, the potency of the identified phytochemicals from the key important plant families, and deciphered some of the impediments involved in standardization of the active compounds in addition to the concerns over the safety of the purified compounds to non-target microbial communities.

• Journal of the Korean Society of Food Culture
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• v.6 no.2
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• pp.155-173
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• 1991

This study was conducted to research on the observing state of Korean traditional holidays and the traditional foods related to those days through the questionnaires completed by 578 housewives who live in Kangreung, Daejeon, Jeonju, and Daegu area. For data processing, SAS program was employed, and all data was analyzed by frequency, percentage, and $x^2-square$. The results are as follows; 1. In observing the traditional holidays, more than 90% of housewives who answered the inquiry keep up SEOLNAL, DAEBOREUM, and CHUSEOK, whithout regarding regions. There are larger number of people who keep up IPCHUN, JUNGWHAJEAL, and DANOH in Kangreung and SAMBOK in Daegu than that of other regions (p<.001). Compared to general circumstances, CHOPAIL is more commonly celebrated by older class as well as lower educated class (p<.001) Also, the consequence shows that Buddhists observe IPCHUN, SAMJITANL, CHOPAIL, DANOH, SAMBOK, and DONGJI more commonly compared with other classes (p<.001), IPCHUN, SAMJITNAL, (p<.01). DAEBOREUM, YUDU, SAMBOK, JUNGYANGJEOL, OHIL, and DONGJI (p<.001) are celebrated more generally among extended. 2. On inheritance of the traditional holidays, most of the housewives answered that the SEOLNAL, DAEBOREUM, CHUSSEOK, and DONGJI are to be inherited. Compared to general circumstance CHOPAIL is suggested to be inherited by older people (p<.001). The IPCHUN, CHOPAIL, SAMBOK (p<.001), and DANCH (p<.01) are suggested by Buddhists that YUDU and SAMBOK are by nuclear. 3. In preparaing festive foods, DEOKGUK on SEOLNAL, OHKOKBAP and MUKEUNNAMUL on DAEBOREUM, SONGPYEON and GATEUNNAMUL on CHUSEOK, and PATJUK on DONGJI are being made very generally. KANGJEONG on SEOLNAL, BUREUM on DAEBOREUM, KALGUKSU and SAMGYAETANG on SAMBOK, DARKJIM on CHUSEOK, SUJEONGGWA and DONGCHIMI on DONGJI appeared comparatively high rated of making. 4. In normal times, DEOKGUK, MANDU, INJEOLMI, SIKHYAE, SUJEEONGGWA, PYEONYUK, JEONYUEO, SIRUDDEOK, BOKSSAM, MUKEUNNAMUL, SONGPYUN, MINARINAMUL, YUKGAEJANGGUK, KALGUKSU, SAMGYAETANG, HOBAKJIJIM, TORANTANG, GATEUNNAMUL, NUREUMJEOK, DAKJIM, KALBIJIM, PATJJUK, and DONGCHIMI is usully made. 5. The source to learn about traditional foods is mostly by her mother and the rest orders are husband's mother, cooking books, mass media (including T.V), school education, and cooking instituse, etc.

• Journal of Food Hygiene and Safety
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• v.20 no.1
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• pp.22-35
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• 2005

A survey was conducted to investigate the perception of food sanitation officers toward the Genetically Modified Foods. They were mainly from Regional Agencies of KFDA, City/Province office, and National quarantine station. Some of them were professors of university and researchers of research institute. Most of respondents had experiences of hearing or reading GM foods (over $95\%$) and over $90\%$ of respondents much needed the label of GM foods. Although some of officers of city/province office and national quarantine station showed less knowledge than other respondent groups, most of respondents had basic knowledge about biology. The frequency of respondents worked over 20 years and worked in the general administration was higher than that of other groups in the question of unsafe of GM foods. The answer frequency of careless treatment of foods was highest in the question of risk factor, and the frequency of GM foods was lowest ($4.4\%$). It was concluded that food sanitation officers had positive opinion about GM foods, but there were some differences in the knowledge among agencies. Therefore, it is necessary more educations and informations are needed for food sanitation officers.