• 한국조리학회지
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• 제23권8호
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• pp.54-66
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• 2017

The purpose of this study was to investigate the nutrient intake status and factors affecting the consumption of commercial staple food for Korean adults using the Korean National Health and Nutrition Examination Survey data from 2010 to 2014. As a result of analyzing the frequency of consumption of commercial staple food, in 27.578 subjects, 75.5% of them did not eat it once a day, 21.7% of the subjects consumed once a day, and more than two times showed 2.8%. According to the results of age, the higher the age, the higher the rate of not consuming commercial staple food, and the lower the age, the higher the rate of consumption of commercial staple food(p<0.0001). In addition, the rate of consumption of commercial staple food was higher in cities than in rural areas. The higher the education level, the higher the proportion of commercial staple food. The intake of rice, noodles, and bread increased significantly as the frequency of consumption of commercial staple foods increased. Protein, fat, riboflavin, and niacin showed significant differences with increasing frequency of commercial staple food in nutrient intakes(p<0.0001). As the number of commercial staple food increased, the intake of grains, egg products, milk and dairy products, beverages and other food groups increased and the consumption of vegetables decreased significantly.

• Biotechnology and Bioprocess Engineering:BBE
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• 제8권6호
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• pp.331-337
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• 2003

Unicellular green algae of the genus Dunaliella thrive in extreme environmental conditions such as high salinity, low pH, high irradiance and subzero temperatures. Species of Dunaliella are well known in the alga biotechnological industry and are employed widely for the production of valuable biochemicals, such as carotenoids. Some strains of Dunaliella are cultivated commercially in large outdoor ponds and are harvested to produce dry algal meals, such as polyunsaturated fatty acids and oils for the health food industry, and coloring agents for the food and cosmetic industries. During the past decade, the advances in molecular biology and biochemistry of microalgae, along with the advances in biotechnology of microalgal mass cultivation, enabled this microalga to become a staple of commercial exploitation. In particular, the advent of molecular biology and mutagenesis in Dunaliella has permitted enhancements in the carotenoids content of this green alga, making it more attractive for biotechnological applications. Accordingly, the present review summarizes the recent developments and advances in biotechnology of carotenoid production in Dunaliella.

• Journal of Biosystems Engineering
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• 제39권4호
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• pp.357-365
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• 2014

Purpose: The continued increase in the world population has triggered an increased demand for food. Cereal grains, flour, and their products constitute the staple diet for most of the world's population. This high demand for food, particularly for cereal-based products, has been exploited for commercial gain through adulteration of food materials. We provide a thorough review of the current developments and limitations of modern, nondestructive analytical techniques used for detection of adulterants in cereals and their products and compare them with conventional methods. Results: Adulterated food poses a serious health risks to humans, animals, and the ecosystem in general. Over the last few decades, the adulteration industry has developed fraudulent practices that often outsmart conventional methods of detection and quality control. Therefore, technological advancements to aid in detection and measurement of adulterants in food products and to ensure food quality and safety are critically important to consumers worldwide. Conclusion: There is a continuous demand for development of nondestructive technology to improve the accuracy and efficiency of detection, measurement, and qualification of adulterants in cereals and other food materials.

• Journal of Applied Biological Chemistry
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• 제59권1호
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• pp.1-3
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• 2016

Wheat is a staple food in the Korean diet, which is increasingly becoming westernized. Because most domestic wheat consumption relies on imported wheat, we aimed to evaluate the allergy-inducible protein contents of commercial flours from imported and domestic wheat. Analysis of the protein contents by densitometry suggested that domestic wheat flours contain lower levels of high molecular weight glutenin and omega-gliadin (50 and 34% lower, respectively) than imported wheat flours. Therefore, domestic wheat flours are less likely to cause allergic reactions than imported wheat flours are. Based on the findings of our study, were commend increased consumption of domestic wheat flours to those who are sensitive to allergy.

• 농업과학연구
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• 제48권4호
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• pp.1051-1065
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• 2021

Recent times have seen sustained increases in genetically modified (GM) crops not only for cultivation but also for the utility of food and feed worldwide. Domestically, commercial planting and the accidental or unintentional release of living modified (LM) crops into the environment are not approved. Many detection methods had been devised in an effort to realize effective management of the safety of agricultural genetic resources. In order to develop event-specific polymerase chain reaction (PCR) markers for LM crops, we analyzed the genetic information of LM crops. Genetic components introduced into crops are of key importance to provide a basis for the development of detection methods for LM crops. To this end, a total of 18 varieties from four major LM crop species (maize, canola, cotton, and soybeans) were subjected to an analysis. The genetic components included introduced genes, promoters, terminators and selection markers. Thus, if proper monitoring techniques and single or multiplex PCR strategies that rely on selection markers can be established, such an accomplishment can be regarded as a feasible solution for the safe management of staple crop resources.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2023년도 임시총회 및 춘계학술대회
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• pp.33-33
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• 2023

Potatoes are the world's 4th major food crop after maize, rice, and wheat and also are a staple food for 1.3 billion people. Due to their wide adaptability to various environmental conditions, their yeild capacity, and high commercial value, potatoes have contributed to global food security. Many potato germplasms are commonly preserved as whole plants in fields or in storage to maintain their particular genetic combinations. However, field maintenance is expensive and has the risk of potential losses from diseases, pests, plant ageing and climate change. Over the past four decades, meaningful efforts have been made toward the safe long-term conservation of potatoes through cryopreservation methods such as droplet-vitrification. In this study, we tested 4 Korean potato varieties('Golden Egg', 'Golden Ball', 'Ja-Young' and 'Ha-Ryeong') with the modified potato droplet -vitrification protocol. Potato shoot tips are precultured in a sucrose-enriched medium(0.3 and 0.7M for 7 and 17hrs, respectively) and submitted to a loading step with C4 solution for osmoprotection. The treated explants were dehydrated with Plant Vitrification Solution(PVS)2 which is 80% A3 solution in ice for 30 minutes. Thawing and unloading steps were performed with 0.8M sucrose solution for 30 sec(40℃) followed by 30min(25℃, room temperature). In a potato post-culture medium(MS+0.1 mg·L^-1 GA₃+0.1 mg·L^-1 kinetin), we obtained a survival rates of post-thawed explants ranging 16.1-82.2%. The results suggest that modified and optimized protocols are required dependinig on every cultivar, genetic and ecological types. To achieve higher survival and regeneration rates, each step within the cryoprocedure must be carefully optimized.

• Journal of Radiation Protection and Research
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• 제30권3호
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• pp.121-130
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• 2005

고리 원전 주변 지역에서 가상사고 시에 발생하는 핵종 방출 후 토양 또는 농작물에서 시간 경과에 따라 변화하는 핵종 농도분포를 도식적으로 표현하기 위한 GIS를 구축하였다. 이를 위해 ESRI 사의 GIS 구축용 상용 프로그램인 ArcView를 도입하였다. 미리 고리원전 주변의 북서방향 $20km{\times}20km$ 구역에 대한 1:5000 축적의 지도 데이터를 구축하였다. 표현 대상 농작물 및 방출핵종은 주민의 주식인 쌀과 $^{131}I$로 정하였다. 총 100개의 cell에서 $^{131}I$의 침적량으로부터 토양 및 농작물 부분에 대한 $^{131}I$의 시간에 따른 양을 ECOREA-II코드를 통해 계산하였다. 계산결과를 ArcView에서 미리 준비된 polygon cell의 속성 자료에 각각의 cell id와 일치시켜 데이터 병합(join) 작업을 수행하였다. 시간이 경과됨에 따라 낮아지는 $^{131}I$ 농도값을 일관성있는 색상 변화로 나타내기 위해 ArcView의 color lamp에 대한 RGB 값을 조절하였다. 이 방법을 이용하여 고리주변의 북서방향 $10km{\times}10km$ 지역에서 $^{131}I$의 침적 후 쌀에서 시간에 따라 변하는 $^{131}I$ 농도분포를 일관성있는 색상 변화로 쉽게 구분이 되도록 나타낼 수 있었다.

• 현장농수산연구지
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• 제13권1호
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• pp.173-183
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• 2011

1. Gabensis 마을은 3천여명의 인구를 가진 Morobe 지역의 Wampar 지방 정부 수준 영역에서 가장 큰 마을 중 하나이다. 2. 주식은 바나나를 비롯하여 마, 카사바, 토란과 고구마가 있다. 그 외에도 마을 사람들이 그들의 생계를 보완하기 위해 야채, 코코아 가루, 코코넛, 목재, 닭고기, 생선, 돼지고기 생산 및 판매에 종사하고 있다. 3. Gabensis 마을 호수 Wanam호수의 자연적인 매력은 농촌관광 사업으로 개발 가능한 잠재력이 있다. 특히, 에코빌리지를 중심으로 지역 사회를 위한 거대한 경관농업의 가치 창조가 필요하다. 정부 서비스 제공과 개발, 교육 및 건강 문제의 일환으로 중요한 지역이다. 4. 넓은 경지면적을 지니고 있지만 경지 정리 및 수리시설 미비로 농업용수가 부족하고 농사에서도 기술수준이 낮아 농업 생산성이 떨어진다. 생산 기술만 제공되면 마가 향후 마을의 중심 작목으로 주민들의 중요한 소득원이 될 것을 기대하고 있다.