• Journal of Crop Science and Biotechnology
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• 제10권4호
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• pp.201-210
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• 2007

Soybean [Glycine max(L.) Merr.] oil is versatile and used in many products. Modifying the fatty acid profile would make soy oil more functional in food and other products. The ideal oil with the most end uses would have saturates(palmitic + stearic acids) reduced from 15 to < 7%, oleic acid increased from 23 to > 55%, and linolenic acid reduced from 8 to < 3%. Reduced palmitic acid(16:0) is conditioned by three or more recessive alleles at the Fap locus. QTLs for reduced palmitic acid have mapped to linkage groups(LGs) A1, A2, B2, H, J, and L. Genes at the Fad locus control oleic acid content(18:1). Six QTLs($R^2$=4-25%) for increased 18:1 in N00-3350(50 to 60% 18:1) explained four to 25% of the phenotypic variation. M23, a Japanese mutant line with 40 to 50% 18:1 is controlled by a single recessive gene, ol. A candidate gene for FAD2-1A can be used in marker-assisted breeding for high 18:1 from M23. Low linolenic acid(18:3) is desirable in soy oil to reduce hydrogenation and trans-fat accumulation. Three independent recessive genes affecting omega-3 fatty acid desaturase enzyme activity are responsible for the lower 18:3 content in soybeans. Linolenic acid can be reduced from 8 to about 4, 2, and 1% from copies of one, two, or three genes, respectively. Using a candidate gene approach perfect markers for three microsomal omega-3 desaturase genes have been characterized and can readily be used in for marker assisted selection in breeding for low 18:3.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2000년도 The 7th International Symposium
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• pp.114-115
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• 2000

Aralia elata is found in mountain areas all over Korean peninsula. Aralia elata is the scientific name for Japanese angelica tree. The tree belongs to the family Araliaceae, commonly known as ginseng family. Bud sprouts from apical shoot tip of the plants are rich in flavor and thus mainly used for both folk medicine and vegetable. The stalks with apical buds are gathered in the early spring and planted in sandy soil or water in the greenhouse. The sprouting buds are then collected and sold as fresh vegetable. Although the plants have been used for food, they have been cultivated in a very small scale. In spring, local farmers just go around mountain areas to search the trees and gather the stalks as much as they get and sell them to the market. No conservation efforts have been made to stop the exploitation or to save the dwindling population. We tried to provide local farmers with the plants that may be used as an alternative to stalks from wild populations. This will bel! p conserve the wild populations. However, it is hard to propagate them either by conventional cuttings or by seed germination in a short period of time. Mass propagation using tissue culture systems have shown a great promise with several woody plants. Recently we developed a mass propagation technique via somatic embryogenesis system using mature and/or juvenile explants for Aralia elata. Several factors affecting somatic embryogenesis system including SE(somatic embryo) induction, embryogenic callus proliferation, SE germination, plant regeneration and transplanting to field frill be presented. And some problems arising for the somatic embryogenesis system will be also discussed.

• 동아시아식생활학회지
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• 제12권6호
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• pp.502-516
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• 2002

Imwonshibyukji is a copying manuscript written around 1825, the 27th year of king Soonjo of the Chosun Period. It is a massive home encyclopedia of total 52 books and 100 volumes. It was quoted from many Chinese literatures The unpublished 'Jeongjoji'of its 17-20th volumes was analyzed to study the cooking methods on the Korean rice cakes (dduck) and studied for the degree of their usefulness and medical values in the light of the cooking and processing science. The book introduced 6 kinds of Korean rice cake: sirudduck (steamed rice cake), chinundduck (steamed and struck rice cake), zizinundduck (small oil fried rice cake), danggui (steamed rice cake mixed with rice power and honey), hondon (=danja: boiled and stuffed rice cake) and butu (fermented rice cake), all of which were composed of total 64 items. The main materials fur the Korean rice cake were as follows: sirudduck and butu were nonwaxy rice powder, chinundduct dinggui and hondon were glutinous rice powder, and zizinundduck was wheat flour. The side material was mainly natural food with the effect of a medicine. The literatures quoted in Imwonshibyukji are as follows: 4 Korean books including Ongheejabji were quoted total 28 times (41.5%), 5 Chinese books including Junsengpaljeon were quoted total 35times (52.2%), and I Japanese book Whawhansamjedohoi was quoted total 4 times (6.0%). The Korean rice cakes quoted in the Korean literature so far exist but the Chinese ones no longer exist. In the comparative analysis of Imwonshibyukji and other contemporary literatures, Chosunmoossangsinsikyorijebub was the most similar one to the book among others.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2000년도 제7차 국제 심포지움(생약자원개발에 관한연구) 및 추계정기 학술발표회 초록집
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• pp.16-17
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• 2000

Aralia elata is found in mountain areas all over Korean peninsula. Aralia elata is the scientific name for Japanese angelica tree. The tree belongs to the family Araliaceae, commonly known as ginseng family. Bud sprouts from apical shoot tip of the plants are rich in flavor and thus mainly used for both folk medicine and vegetable. The stalks with apical buds are gathered in the early spring and planted in sandy soil or water in the greenhouse. The sprouting buds are then collected and sold as fresh vegetable. Although the plants have been used for food, they have been cultivated in a very small scale. In spring, local farmers just go around mountain areas to search the trees and gather the stalks as much as they get and sell them to the market. No conservation efforts have been made to stop the exploitation or to save the dwindling population. We tried to provide local farmers with the plants that may be used as an alternative to stalks from wild populations. This will hel! p conserve the wild populations. However, it is hard to propagate them either by conventional cuttings or by seed germination in a short period of time. Mass propagation using tissue culture systems have shown a great promise with several woody plants. Recently we developed a mass propagation technique via somatic embryogenesis system using mature and/ or juvenile explants for Aralia elata. Several factors affecting somatic embryogenesis system including SE(somatic embryo) induction, embryogenic callus proliferation, SE germination, plant regeneration and transplanting to field will be presented. And some problems arising for the somatic embryogenesis system will be also discussed.lso discussed.

• 한국어류학회지
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• 제19권3호
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• pp.193-200
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• 2007

한국산(통영, 여수)과 일본산(나가사키) 넙치(Paralichthys olivaceus)의 체지방량 및 혈청지질을 분석한 결과, 표준체장과 체중의 평균치는 각각 유의한 차이가 없었다. 체장을 제외한 상대적인 체중에서는 나가사키산>여수산>통영산 넙치의 순위로, 일본산 넙치가 한국산 넙치에 비해 체중이 많았으며, 어체 밀도의 평균치에서는 국가간, 지역간에 유의한 차이가 없었다. 각 체구성 성분은 일본 나가사키산의 넙치가 한국의 여수, 통영산 넙치에 비해 체수분량이 적었고, 체지방량과 체단백질량은 많았다. 그러나 체장의 요인을 제외하고 비교하면, 체수분량, 체지방량, 체단백질량은 각각 나가사키산>여수산>통영산 넙치의 순서로 많았고, 일본산이 한국산에 비하여 근육량도 많은 특징을 나타내었다. 혈청중의 지질량에서, cholesterol양은 여수산 넙치가 많았고, triglyceride 양은 나가사키산 넙치에서 많았다. 또한, 혈청중의 lipoprotein은 전기영동상에서 나가사키산 넙치가 통영산 넙치에 비하여 LDL이 더 많았다.

• 수산해양교육연구
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• 제18권3호
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• pp.374-378
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• 2006

Eel is Anguilla japonica and Anguillidae family as a freshwater fish, and Japanese name is Unagi. The content of vitamin A of eel muscle are about 4,000IU/100g and they have many effective components, so it is known as healthy food. Therefore, many people have eel that cooked roast and hot-water extract in Korea. WHO encouraged that daily edible content of vitamin A is 2,000IU. Now, Japan government proposes the weight of roasted eel in lunch basket as 50g. But, Korea government does not proposes in every related aspects. Therefore, we researched content of vitamin A in hot-water extract from eel and optimal processing condition of hot-water extract from eel, in order to determine a proper edible volume. The content of vitamin A in eel hot-water extract sold at a market was about 200 IU. This study resulted from the fact that many eel hot-water extracts lacked the vitamin A. The reason was that the lipids were removed for taste on processing. But, The content of vitamin A in eel hot-water extract which didn't removed lipid on processing was about 800IU. Therefore, in drinking for 3packs per day, eel hot-water extract might have adjusted 100mL per pack which is almost consistent with the recommended dietary allowance of vitamin A in WHO.

• Applied Biological Chemistry
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• 제39권5호
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• pp.389-397
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• 1996

연속수증기증류장치를 이용하여 두릅으로부터 얻어진 휘발성농축물은 탄화수소구분 및 함산소구분으로 분리되었고, 함산소구분은 실리카겔 관 크로마토그래피에 의해서 9개의 계대구분으로 다시 분획하였다. 기체크로마토그래피와 기체크로마토그래피에 질량분석계를 연결시킨 장치는 휘발성성분을 동정하기 위하여 사용하였다. 동정된 167개의 휘발성성분은 72개의 탄화수소, 31개의 알콜, 23개의 알데히드, 16개의 에스테르, 10개의 산, 6개의 케톤, 3개의 푸론, 2개의 페놀, 1개의 인돌, 1개의 산화물, 1개의 설파이드 및 1개의 락톤이었다. Sesquiterpene 탄화수소인 ${\beta}-caryopyllene$은 두릅에서 동정된 휘발성 성분중에서 함량이 가장 높았으며, 19.53%를 차지하였다. 두릅정유는 관능검사용 기체크로마토그래피를 사용하여 각 구분에 함유된 개별 휘발성성분을 평가에 의해서 초목 모양의 향기를 함유하고 있음이 밝혀졌다.

• The Plant Pathology Journal
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• 제31권4호
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• pp.388-401
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• 2015

Sweet potatoes (Ipomea batatas L.) are grown extensively, in tropical and temperate regions, and are important food crops worldwide. In Korea, potyviruses, including Sweet potato feathery mottle virus (SPFMV), Sweet potato virus C (SPVC), Sweet potato virus G (SPVG), Sweet potato virus 2 (SPV2), and Sweet potato latent virus (SPLV), have been detected in sweet potato fields at a high (~95%) incidence. In the present work, complete genome sequences of 18 isolates, representing the five potyviruses mentioned above, were compared with previously reported genome sequences. The complete genomes consisted of 10,081 to 10,830 nucleotides, excluding the poly-A tails. Their genomic organizations were typical of the Potyvirus genus, including one target open reading frame coding for a putative polyprotein. Based on phylogenetic analyses and sequence comparisons, the Korean SPFMV isolates belonged to the strains RC and O with >98% nucleotide sequence identity. Korean SPVC isolates had 99% identity to the Japanese isolate SPVC-Bungo and 70% identity to the SPFMV isolates. The Korean SPVG isolates showed 99% identity to the three previously reported SPVG isolates. Korean SPV2 isolates had 97% identity to the SPV2 GWB-2 isolate from the USA. Korean SPLV isolates had a relatively low (88%) nucleotide sequence identity with the Taiwanese SPLV-TW isolates, and they were phylogenetically distantly related to SPFMV isolates. Recombination analysis revealed that possible recombination events occurred in the P1, HC-Pro and NIa-NIb regions of SPFMV and SPLV isolates and these regions were identified as hotspots for recombination in the sweet potato potyviruses.

• Journal of Biosystems Engineering
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• 제43권4호
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• pp.426-439
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• 2018

Purpose: To continuously monitor soil and climatic properties, a data acquisition system (DAQ) was developed and tested in plum farms (Gyewol-ri and Haechang-ri, Suncheon, Korea). Methods: The DAQ consisted of a Raspberry-Pi processor, a modem, and an ADC board with multiple sensors (soil moisture content (SEN0193), soil temperature (DS18B20), climatic temperature and humidity (DHT22), and rainfall gauge (TR-525M)). In the laboratory, various tests were conducted to calibrate SEN0193 at different soil moistures, soil temperatures, depths, and bulk densities. For performance comparison of the SEN0193 sensor, two commercial moisture sensors (SMS-BTA and WT-1000B) were tested in the field. The collected field data in Raspberry-Pi were transmitted and stored on a web server database through a commercial communications wireless network. Results: In laboratory tests, it was found that the SEN0193 sensor voltage reading increased significantly with an increase in soil bulk density. A linear calibration equation was developed between voltage and soil moisture content depending on the farm soil bulk density. In field tests, the SEN0193 sensor showed linearity (R = 0.76 and 0.73) between output voltage and moisture content; however, the other two sensors showed no linearity, indicating that site-specific calibration is important for accurate sensing. In the long-term monitoring results, it was observed that the measured climate temperature was almost the same as website information. Soil temperature information was higher than the values measured by DS18B20 during spring and summer. However, the local rainfall measured using TR 525M was significantly different from the values on the website. Conclusion: Based on the test results obtained using the developed monitoring system, it is thought that the measurement of various parameters using one device would be helpful in monitoring plum growth. Field data from the local farm monitoring system can be coupled with website information from the weather station and used more efficiently.

• 한국식품저장유통학회지
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• 제6권2호
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• pp.188-193
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• 1999

본 연구는 한국시장에 저장중인 수출 돈육과 일본시장에 실제 수출이 완료되어 유통중인 한국산 진공포장 냉장돈육에 대한 위생성을 일본 후생성에서 요구하는 수입식육의 유통기한 기준안에 준해 조사하여 한국산 돈육의 위생성과 유통기한을 파악하고자 실시하였다. 공시시료는 비교적 오랜 기간 동안 일본에 냉장육을 공급해 주고 있는 4개 회사의 제품으로 우리 나라내 조사에서는 레귤러 등심과 뒷다리살을 이용하였으며, 일본 현지에서는 레귤러 등심만을 이용하였다. 국내 저장 시 유통기한 평가는 AㆍB회사 제품의 경우 0$\pm$1$^{\circ}C$에서, Cㆍ D회사 제품의 경우는 2$\pm$1$^{\circ}C$에서 저장하였다. 일본에서 행한 유통기한 평가는 통관직후 샘플을 아이스박스로 수송하여 $0^{\circ}C$에서 저장하며 미생물, 이화학적 수준 및 관능적 평가를 실시하였다. A 및 D회사의 경우 저장 40일까지도 총 균수가 $10^{6}$CFU$\textrm{cm}^2$이하였으나, 관능검사 결과 40일 이후에는 이상으로 판정되어 가식가능 기간이 40일 정도인 것으로 판단된다. 그러나 B 및 C회사의 경우에는 저장 50일에 총균수가 $10^{6}$CFU/$\textrm{cm}^2$ 이상을 보였으며, 관능검사 결과에서도 이상으로 판정되지 않아 가식가능 기간이 50일 정도인 것으로 판단된다. 따라서 A및 D회사의 유통가능 기간은 32일정도로 사료되며, B 및 C회사의 유통가능 기간은 40일정도인 것으로 사료된다. A 및 B회사의 경우 40일경 총균수에서 $10^{6}$CFU/$\textrm{cm}^2$이상을 보였으며, C 및 D회사에서는 30일경부터 $10^{6}$CFU/$\textrm{cm}^2$이상을 보였다. 대장균군의 경우에는 A 및 D회사에서 50일경에 $10^4$CFU/$\textrm{cm}^2$ 정도의 대장균군을 보인 반면, B와 C에서는 $10^{5}$CFU/$\textrm{cm}^2$정도의 대장균군수를 보였다. 따라서 가식 및 저장기간이 가장 긴 것은 A회사의 등심과 뒷다리육으로 판단되며, 그 다음은 B회사, C회사이며 D회사의 등심과 뒷다리육은 저장기간이 20일정도로 다른 회사들에 비해 저장이나 가식가능 기간이 훨씬 짧은 것으로 나타났다.다.