• Journal of Microbiology and Biotechnology
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• 제30권1호
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• pp.44-53
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• 2020

Calcium is an element that performs many important functions in the human body. A study was conducted on the use of a pulsed electric field (PEF) to enrich cells of Lactobacillus rhamnosus B 442 in calcium ions. The highest concentration of calcium ions in bacterial cells (7.30 mg/g d.m.) was obtained at ion concentration of 200 ㎍/ml of medium and with the use of the following PEF parameters: field strength 3.0 kV/cm, exposure time 10 min, pulse width 75 ms and 20 h of culturing after which bacteria were treated with the field. Cell biomass varied in the range from 0.09 g/g d.m. to 0.252 g/g d.m., and the total number of bacteria ranged from 10¹⁰ CFU/ml to 10¹² CFU/ml. Microscope photographs prove that calcium ions were situated within the cells of the bacteria, and electroporation contributed to an increase in the effectiveness of the ion bioaccumulation process. Samples containing calcium and subjected to electroporation displayed intensive fluorescence. The significance of this research was the possibility of using probiotic bacteria enriched with calcium ions for the production of functional food in subsequent studies.

• 한국식생활문화학회지
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• 제23권2호
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• pp.204-213
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• 2008

In this age of information ruled by new technologies and knowledge, the world is interconnected as a single community, and within this trend of globalization, new cultural codes are emerging through temporal fusion between the past and the present and spatial fusion between different regions and countries. In this situation, it seems meaningful to review Korean fusion foods and restaurants serving such foods, as well as to consider their future directions. Thus, the objective of the present study was to survey and analyze Korean fusion restaurants representing Korean culture not only in Korea, but also in foreign cities, and to identify the expression characteristics of such restaurants. Based on restaurants recommended in relevant magazines and on Internet sites, 18 spaces were selected, visited, and surveyed, in which tradition and modernism were well-mixed. Data on the shapes, materials, colors, and patterns of spatial elements and food-related elements, including photographs, were collected and analyzed. The results are as follows. Of the 18 restaurants, 13 (72%) showed temporal fusion in both spatial and food-related elements, 4 showed temporal fusion in spatial elements and cultural fusion in food-related elements, and 1 showed cultural fusion in both spatial and food-related elements. In general, the spaces were mainly designed with modern elements and partially with traditional elements (ceilings, windows, furniture, articles), and the fusion of food-related elements was made in diverse forms that included temporal fusion restructuring traditional menus contemporarily, and cultural fusion harmonizing traditional food with Western cookery.

• 한국식생활문화학회지
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• 제32권2호
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• pp.162-173
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• 2017

This study was conducted to explore portion size estimation by comparing the measurement errors of food and macronutrient intake by photography estimation and 24-hour recall from weighing method. A total of 28 female participants aged 20-24 years old were provided a meal that included rice, chard soup with soybean paste, stir-fried squid, japchae, stir-fried boiled fish paste, lettuce geotjeori, and kimchi. Each portion was measured accurately, and food intake was measured using three dietary assessment methods. For the photography method, trained researchers estimated remaining food amount by analyzing photographs using a mean of four times. The measurement errors for the stir-fried squid and japchae were larger by the 24-hour recall method, while the error for kimchi was larger by the photography method. The correlation coefficients for each food, except chard soup with soybean paste, between the weighing method and photography method were 0.77~0.99 (p<0.001). The correlation coefficients of energy and intake of macronutrients between the weighing method and photography method were 0.85~0.86 (p<0.001). The results of this study demonstrate substantially less measurement error using the photography method than the 24-hour recall method. However, further research is needed to standardize various kinds of foods, photograph angles, serving plates, and serving style for establishment of reliable and valid portion size estimation using the photography method.

• Nutrition Research and Practice
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• 제13권1호
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• pp.32-40
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• 2019

BACKGOUND/OBJECTIVES: This study investigated nutritional status of the elderly with dementia in a care facility with the aim of improving the meal quality of the facility. SUBJECTS/METHODS: Data were collected from 30 dementia patients aged more than 65 years in a long-term care facility in Hongseong. The data were obtained from questionnaires and medical records. The food intake data was obtained using food photographs and the nutrient intakes were calculated using the CAN-Pro 5.0. The data were compared with the dietary reference intakes for Koreans (KDRIs). The nutrient density, diet quality such as nutrient adequacy ratio (NAR), mean adequacy ratio (MAR), and index of nutritional quality (INQ), as well as dietary diversity score (DDS) were evaluated. The data were analyzed using SPSS statistical programs. RESULTS: The average daily energy intakes for men and women were much lower than the estimated energy requirements of the KDRIs. The average intakes of energy and most nutrients in the general diet group were significantly higher than those of the other two groups. Significant differences in diet quality and diet diversity were observed according to the meal type groups. The NARs of some minerals (calcium, iron, and zinc) and vitamins (vitamin $B_6$ and folic acid) were less than 0.5 in all study groups. The NARs of protein, iron and MAR of the general diet group were significantly higher than those of the liquid diet group. The DDS scores of meats, fruits and diary food group were very low in all meal type groups, meaning that the diet qualities of the study subjects were not appropriate in all meal type groups. CONCLUSIONS: The food intakes of the study groups showed some limitations by a direct comparison with KDRIs because of the very low physical activities of the study subjects. The diet quality and diet diversity indices suggest the need for improvements in the nutritional quality in all types of diet. Overall, new intervention strategies targeting facility residents with dementia in Korea are needed as soon as possible.

• 한국식품과학회지
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• 제37권2호
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• pp.164-170
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• 2005

미생물유래의 중합화효소(microbial transglutaminase, MTGase)를 이용하면 식품 단백질의 기능특성을 향상시키는 것이 가능하다. 본 연구에서는 MTGase를 이용, 동물성 단백질인 ${\beta}$-casein 및 식물성 단백질인 11S globulin의 동종 혹은 이종간을 bio-hybrid시킴으로써 단백질의 기능특성을 향상시키고자 하였다. 즉, SDS-PAGE에 의한 susceptibility 확인, particle size 분석 및 Reddy and Foster 방법에 의한 유화안정성(emulsion stability) 실험, 그리고 유화안정성에 영향을 주는 bio-hybrid된 단백질이 어떤 형태로서 안정성에 영향을 미치는지 주사형 전자현미경(SEM)을 이용하여 유적(oil droplet)에 결합된 단백질을 고배율로 분석하였다. SDS-PAGE에 의해 동종 흑은 이종의 단백질간의 가교결합이 형성되었으며, 특히 이종간의 결합은 그 밴드가 약하게 형성되었으며 oligomer의 형태를 나타내었다. 또한 유화안정성은 동종간에서는 ${\beta}$-casein이 우수하였으며, glycinin은 안정성이 거의 없는 것으로 나타났다. 그러나, 두 단백질 이종간의 안정성은 glycinin보다 더 우수하였다. 전자현미경 사진에서는 유적에 bio-hybrid된 단백질이 고르게 분포될수록 안정성이 더 우수한 것으로 판단되었다.

• 한국축산식품학회지
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• 제24권1호
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• pp.57-65
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• 2004

Digital photographs of 16 pork chops were each modified to give 16 treatments, such as two levels each of fat cover, color, marbling and drip, giving a total of 256 images. Consumers from three locations in France and six locations in Korea selected their preferred chop from 16 treatments in different chops and repeated this selection process eight times from different groups of chops, respectively. Respondents were asked to complete a questionnaire on socio-demographic information. Both the results of the French and Korean surveys gave four clusters of consumers, but they were not the same in terms of the choice strategies used, or in terms of their relationships with the socio-demographic items. The interesting apparent similarities (such as, both color levels being equally important to consumers in both countries) and differences(such as, the strong preference for lean meat in France; no fat preference in Korea) suggest a need to compare the results from the two countries. However, due to the difference of the socio-demographic make-up of the consumer panels from the two countries, a simple and direct comparison of the clusters based on choice and their relationships with the questionnaire items is not possible, but is currently being explored.

• 한국식품영양과학회지
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• 제23권2호
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• pp.192-197
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• 1994

6주간 고지방식이를 섭취한 흰주에 있어 송화분과 탈지 송화분이 혈청과 간장에서의 지방 축적과 대사에 미치는 효과를 관찰하였다. 혈청에서의 total lipid, total cholesterol 농도는 고지방 식이군에 비해서 탈지 송화분과 송화분 투여군이 유의적으로 감소하였다. 혈청에서의 triglyceride 농도는 탈지 송화분과 송화분 투여군이 고지방 식이군과 비교했을 때 뚜렷한 감소를 보였으며, 이는 정상군과 비슷한 농도를 나타내었다. 혈당 농도는 송화분, 탈지 송화분 투여군에서 유의성 있게 감소하였다. 간장을 조직학적으로 관찰한 결과, 고지방식으로 인한 조직의 지방 침착은 송화분 투여군에서 다소 억제함을 보였다. 이상의 결과를 미루어 볼 때 송화분은 동맥경화증 및 순환기계 질환의 예방과 치료에 효과적일 것으로 사료된다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.1159-1161
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• 2003

Gidra speaking people living in Wonnie area of western province in Papua New Guinea are traditionally dependent on hunting and gathering. Sago is the main staple food and the vegetation consists of rain forest (Bua) and trees with savannah grass (Yap). The population density is very low and the people are very little affected by modernization. This study is an attempt to look at the people-resource interaction in the area for the past thirty years based on aerial photographs and various satellite data. The study showed the trends of yap versus bua distribution as well as the location of garden and Sago grove areas, which is important for studying the livelihood of the people.

• Journal of Species Research
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• 제12권2호
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• pp.150-153
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• 2023

A fern spore-feeding stathmopodid species, Calicotis latebrifica Terada, 2016 is reported for the first time from Korea on the basis of one male and three females from Island Chujado, Jeju Province. This record represents the third example of the Korean Lepidoptera associated with fern spores for larval food items. The species is similar to Cuprina fuscella Sinev, 1988 in feeding on fern spores but differs from the latter in the body color and the presence of cilia on the ventral side of antennal flagellum. The genus Calicotis is introduced for the first time to the Korean fauna. Calicotis latebrifica has been known exclusively from Japan before this study. Larval habits for feeding and shelter construction were demonstrated from field observation and rearing in captivity. A new host plant of C. latebrifica, Dryopteris nipponensis Koidz. is recorded. The habitus and genitalia of both sexes are briefly described for C. latebrifica with photographs.

• 한국자원식물학회지
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• 제37권2호
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• pp.130-136
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• 2024

Archidium Brid. (Archidiaceae) 속은 극지방을 제외한 아열대에서 온대 지역까지 35종이 분포하는 것으로 알려진 속으로 국내 분포는 명확하지 않았으나 경기도 연천군 감악산에 Archidium ohioense Schimp ex Müll. Hal.이 자생하고 있음을 확인되었다. 본 연구에서는 A. ohioense의 형태학적 기재와 동정을 위한 주요 형질의 사진, 도해 및 검색표를 제시하였다.