• 한국수산과학회지
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• 제46권3호
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• pp.252-258
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• 2013

The quality and quantity of food organisms in fish seed production are important. The marine microalgae Nannochloropsis oculata are used as initial food organisms in the field. We investigated the effects of salinity (0, 10, 20, 30, 40 and 50 psu) on the lipid and fatty acid composition of N. oculata. Cultivation of N. oculata at varying salinities showed the highest growth rate at 20 psu. Total lipid content ranged from 17.26 to 18.63% at salinities from 0 to 50 psu). The nonpolar lipid content increased markedly at 30 psu and was highest at 15.55%. The polar lipid content was lowest at 30 psu, by 84.45%. It was also found that the omega-3 and EPA contents were inversely proportional to salt concentration. For the polar and nonpolar lipid compositions, there was no significant effect of salinity. Omega-3 polyunsaturated fatty acid content especially the content of EPA in the seawater larvae is the essential fatty acid in this food organism. It is thus advantageous to culture N. oculata at 20 psu.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제31권1호
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• pp.31-38
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• 2005

Thorough screening of donors medical and social history, extensive serological and bacterial screening combined with developed processing and sterilization methods have improved the safety of the allogeneic tissues in recent decades. The risk of bacterial infection through allogenic tissue transplantation is one of the major problems facing tissue banks. The purpose study is to report the contamination rate in 358 retrieved tissues obtained strictly aseptic conditions, between 2001 and 2002 in Korea Tissue Bank. Samples from 9 donors(total 13 donors) were used in blood culture, and in 7 donors the blood culture were negative. Of the 358 tissues cultured in their entirety, 186(52%) were initially culture negative and 177(48%) were positive. Organism low pathogenicity were cultures from 20.2% of the tissues. To minimize the bacterial load, donors should be obtain in operating rooms, using aseptic techniques with only a few personnel for procurement. The procurement cultures from donors and retrieved tissues with multiple should be carefully interpreted. Blood cultures should be taken account, since these can help to find contamination not detect swab culture. A prospective cohort study is needed to determine which of the varied processing and sterilization methodologies gives the best quality.

• 한국가정과학회지
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• 제7권1호
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• pp.43-50
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• 2004

The purpose of this study is to reach silk protein added in differing amounts to Jeolpyon, Korean traditional rice cake, using rice powder as its primary material, estimation of the micro organism quality, physicochemical property, sensory evaluation and the property of storage period (20${pm} 5 ^{\circ}C$). In the physicochemical property, the content of proximate composition of rice powder was measured as 38.11% of moisture, 56.62% of total sugar, 5.11% of crude protein, 0.52% of crude lipid, 0.25% of ash. And the raw material of silk protein was measured as 6.61% of moisture, 91.22% of crude protein, 6.41% of crude lipid and 0.75% of ash. The pH of raw material for rice powder and silk protein Jeolpyon showed mild acidity as 6.41 and 6.23, respectively. In rice powder and silk protein, total free sugar contents was 0.89% and 0.02%, and total amino acids contents was 4.28% and 52.21 %, respectively. For sensory evaluation. color, taste, softness and adhesiveness were significantly acceptable in control and adding 1 % silk protein. Control and samples added 1$\sim$3% silk protein had high sensory score color in overall acceptance. In conclusion. Jeolpyon can be manufactured with nutritious Jeolpyon by adding silk protein.

• 한국정보통신학회논문지
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• 제12권5호
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• pp.930-936
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• 2008

유전자 알고리즘을 이용하여 바이오센서의 활동량을 측정하는 CMOS 이미지 모니터링 시스템을 개발하였다. 수중의 물벼룩, 물고기와 같은 살아있는 대부분 생물체는 수질을 모니터링하는 바이오센서로 자주 사용된다. 이미지 센서에 의해 바이오센서의 활동량의 측정은 이미지를 얻는 방법에 따라 다르게 측정됨으로 매우 어렵다. 제안된 모니터링 시스템은 유전자 알고리즘을 사용하여 바이오센서 활동량을 최적으로 측정할 수 있다. 그리고 이 시스템은 FPGA로 되어 있어 가격과 성능 면에서 우수한 작은 하드웨어로 구현된다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.17-17
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• 2022

Leaves are an important organism for photosynthesis and transpiration. The shape of leaf is crucial factor affecting plant architecture. V-shape leaf rolling is enhancing canopy photosynthesis by increasing the CO₂ penetration and the light capture by reducing the shadow between the leaves. Therefore, moderate leaf rolling is thought to more high grain yield per area than flat leaf. We investigated 278 KRICE_CORE accession's Adaxial Leaf Rolling Index (LRI) in first heading using the following equation. For each accession, genomic DNA was used for sequencing. We sequenced the genomics with ~8 X coverage to detect SNPS. Raw reads were aligned against the rice reference (IRGSP 1.0) for SNP identification and genotype calling. To generate genotype data for GWAS, SNPs were filtered with minor allele frequency 0.05. Finally, 841,134 high-quality SNPs were used for our GWAS. The significant threshold was -log10(P)>7.23. From the results, 2 significance SNP were detected. Considering the LD block of 250kbp, 60 candidate gene were selected including Hypothetical gene and Conserved gene. In this poster, we analyzed candidate gene affecting adaxial Leaf Rolling through single-trait GWAS.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2022년도 추계학술대회
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• pp.243-243
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• 2022

Leaves are an important organism for photosynthesis and transpiration. The shape of leaf is crucial factor affecting plant architecture. V-shape leaf rolling is enhancing canopy photosynthesis by increasing the CO₂ penetration and the light capture by reducing the shadow between the leaves. Therefore, moderate leaf rolling is thought to more high grain yield per area than flat leaf. We investigated 278 KRICE CORE accession's Adaxial Leaf Rolling Index (LRI) in first heading using the following equation. For each accession, genomic DNA was used for sequencing. We sequenced the genomics with ~8 X coverage to detect SNPS. Raw reads were aligned against the rice reference (IRGSP 1.0) for SNP identification and genotype calling. To generate genotype data for GWAS, SNPs were filtered with minor allele frequency 0.05. Finally, 841,134 high-quality SNPs were used for our GWAS. The significant threshold was -log10(P) >7.23. From the results, 2 significance SNP were detected. Considering the LD block of 250kbp, 60 candidate gene were selected including Hypothetical gene and Conserved gene. In this poster, we analyzed candidate gene affecting adaxial Leaf Rolling through single-trait GWAS.

• 한국습지학회지
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• 제3권2호
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• pp.107-118
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• 2001

The aim of this paper is to grasp eutrophication aspects in Namhae coastal seas, statistically analyzing existing data for their surface seawater and bottom mud. A pollution level(ignition loess) of bottom mud, on the whole, trended to increase as moving the coastal sea around Mokpo-Wando toward the east(Gyeongnam Namhae coastal seas). Especially, the pollution level(ignition loss=10.5%) of bottom mud for the coastal sea around Tongyeong-Keoje-Gosung was similar to that(10.3%) for the coastal sea around Masan-Jinhae, whose coastal marine pollution was the severest in Namhae coastal seas. It indicates that large amounts of pollutant from aqualculture facilities have been, thus far, accumulated on the coastal sea around Tongyeong-Keoje-Gosung, considering there was no significant inflow of sewage and industrial wastewater into this coastal sea. A COD, T-N, and T-P level of surface seawater, on the whole trended to increase as moving the coastal sea around Mokpo-Wando toward the east(Gyeongnam Namhae coastal seas). A COD level appeared to be the second grade of coastal water quality over the entire year throughout all Namhae coastal seas A T-N level exceeded the third grade of coastal water quality throughout all Namhae coastal seas except the coastal sea around Mokpo-Wando. Especially, a T-N level exceeded as many as three and six times over the third grade of coastal water quality in the coastal sea around Tongyeong-Keoje-Gosung and Masan-Jinhae, respectively. A T-P level appeared to be the second grade of coastal water quality in the coastal sea around Mokpo-Wando and the third grade of coastal water quality in the coastal sea around Yosu-Narnhae and Tongyeong-Keoje-Gosung, while it exceeded as many as two times over the third grade of coastal water quality. A degree of eutrophication of the surface seawater was 1.5 in the coastal sea around Mokpo-Wando and 11.9 In the coastal sea around Tongyeong-Keoje-Gosung, gradually increasing as moving toward the east(Gyeongnam Narnhae coastal seas). It sharply increased to 146.1 in the coastal sea around Masan-Jinhae. Because the degree of eutrophication throughout all Namhae coastal seas exceeded 1, a red tide organism could pose a possibility of proliferation at any place of Namhae coastal seas if other requirements were satisfied. It indicates that a red tide may move to another place once a red tide breaks out at a place of Namhae coastal seas.

• Asian-Australasian Journal of Animal Sciences
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• 제24권5호
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• pp.713-722
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• 2011

The aim of this study was to confirm Pseudomonas spp. as the specific spoilage organism (SSO) of chilled beef during aerobic storage and to establish a model to predict the shelf life of beef. Naturally contaminated beef was stored at $4^{\circ}C$, and the spoilage limit of Pseudomonas organisms was determined by measuring several quality indicators during storage, including the number of Pseudomonas organisms, total number of bacteria, total volatile basic nitrogen (TVBN) values, L value color scale scores and sensory evaluation scores. The beef was then stored at 0, 4, 7, 10, 15 or $20^{\circ}C$ for varying amounts of time, and the number of Pseudomonas organisms were counted, allowing a corresponding growth model to be established. The results showed that the presence of Pseudomonas spp. was significantly correlated to each quality characteristic (p<0.01), demonstrating that Pseudomonas spp. are the SSO of chilled beef and that the spoilage limit was $10^{8.20}$ cfu/g. The Baranyi and Roberts equation can predict the growth of Pseudomonas spp. in beef, and the $R^2$ value of each model was greater than 0.95. The square root model was used as follows, and the absolute values of the residuals were less than ${0.05:\;{\mu_{max}}^{1/2}$ = 0.15604 [T+(-0.08472)] (p<0.01), $R^2$ = 0.98, $\lambda^{-1/2}$ = 0.0649+0.0242T (p<0.01, $R^2$ = 0.94). The model presented here describes the impact of different temperatures on the growth of Pseudomonas spp., thereby establishing a model for the prediction of the shelf life of beef stored between 0 to $20^{\circ}C$.

• 한국전자통신학회논문지
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• 제9권3호
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• pp.323-328
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• 2014

키토산 첨가 혼합사료를 섭취한 양돈 근육 조직과 일반 사료를 섭취한 조직에서의 품질을 비교하기 위한 방법으로 생체광자를 이용한 광전자증폭관(Photomultiplier Tube, PMT) 기기를 사용하여 측정한 결과 서로 다른 결과를 얻었다. 키토산 첨가제를 사용한 돼지 등심조직에서의 육질 비교를 PMT와 현미경을 사용하여 측정한 결과 키토산 첨가 혼합 사료를 먹인 돼지 등심 조직의 생체광자 양을 측정한 결과 서로 상이한 수치를 얻을 수 있었다. 이것으로 조직의 품질을 비교 측정이 가능했다. 또한 이조직의 형태를 해부현미경으로 관찰한 결과 키토산 첨가 혼합사료 근육 조직의 육질이 더 섬세하고 촘촘하여 지방질이 적고 맛이 좋다는 것을 알 수 있었다. 따라서 PMT에 의한 조직 육질 측정은 생화학적 상태변화를 측정하는 새로운 분석법의 하나가 될 것으로 기대되어진다.

• 한국수산과학회지
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• 제8권3호
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• pp.166-170
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• 1975

시판되고 있는 6종의 어단 통조림을 수집하며 조직화학적 방법으로 분석한 결과를 요약하면 다음과 같다. 1. 단백질 함량은 일반적으로 낮았으며 $2.7\~8.9\%$의 함량을 보였고, 지방은 시료에 따라서 매우 변화가 심한 $1.4\~17.6\%$이었다. 3. 탄수화물은 약 $58.1\~75.2\%$로서 가장 높은 함량을 보였다. 3. 공포는 $14.4\~21.1\%$ 로서 많은 편이었다. 4. $37^{\circ}C$에서 4일간 배양한 시료 어단에서는 주로 전분, 단백질 및 공포주위에서 미생물이 집락을 형성하고 있는 것이 관찰되었다. 3. 이상을 종합할 때 수산연제품의 일종인 통조림 어단의 품질은 조직화학적 및 형태학적 방법으로 충분히 평가할 수 있는 것으로 판단된다. 끝으로 본실험을 위하여 지도하여 주신 전북대학교 예방의학교실 이 재구 박사 및 실험을 도와 주신 동교실 김 수명씨에게 사의를 표하는 바이다.