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김연비 ( Youn Bee Kim ),김승연 ( Seung Youn Kim ),김재영 ( Jae Young Kim ),한재원 ( Jae Won Han ),유제민 ( Je Min Yoo ),차현정 ( Hyun Jung Cha ),김대재 ( Dae Jae Kim ) 충북대학교 과학교육연구소 2014 과학교육연구논총 Vol.29 No.2
Here we report about the stress response to the exogenous stimuli in the developing cucumber cotyledon genes. We tested about water, salts and cold-stress to the fully developed cucumber cotyledons. The genes are involved in glyoxysomal, peroxisomal, mitochondrial and cytosolic compartments; ICL, gMDH, mMDH, PCK and GLO. Its gene encoding enzymes are essential in lipid mobilization by glyoxylate cycle/gluconeogenesis (ICL, gMDH and PCK) cell respiration by TCA cycle(mMDH), extra photo-respiration in C3 plant photosynthesis(GLO). We used standard RT-PCR technology to examine the gene expression level. As the results of the examination, the gMDH, PCK and mMDH genes were repressed to water and salt-stresses at the 4 day after stress. However, GLO gene did not show any significant changes in gene expression to the water and salt-stresses. In case of cold-stress, gMDH, PCK and mMDH genes showed slight up-regulation in gene expression but not the case in the GLO gene expression as the previous two experiments. It may be explained that water and salt-stresses are the strong exogenous down-regulating stimulus to those gene which repressed ones but cold-stress may not be the same case of the gene expression in cucumber cotyledon development. However, these results are the just pre-mature one to be made final conclusion.
A report of 37 unrecorded anaerobic bacterial species isolated from the Geum River in South Korea
이창수,김연비,노성운,김주석,안승우,송혜선,노성운,김준용 국립생물자원관 2020 Journal of species research Vol.9 No.2
A total of 37 anaerobic bacteria strains within the classes Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Bacteroidia, Flavobacteriia, Bacilli, Clostridia, and Fusobacteriia were isolated from freshwater and sediment of the Geum River in Korea. The unreported species were related with Rhizobium and Oleomonas of the class Alphaproteobacteria; Acidovorax, Pseudogulbenkiania, and Aromatoleum of the class Betaproteobacteria; Tolumonas, Aeromonas, Cronobacter, Lonsdalea, and Phytobacter of the class Gammaproteobacteria; Bacteroides, Dysgonomonas, Macellibacteroides, and Parabacteroides of the class Bacteroidia; Flavobacterium of the class Flavobacteriia; Bacillus and Paenibacillus of the class Bacilli; Clostridium, Clostridioides, Paraclostridium, Romboutsia, Sporacetigenium, and Terrisporobacter of the class Clostridia; and Cetobacterium and Ilyobacter of the class Fusobacteriia. A total of 37 strains, with >98.7% 16S rRNA gene sequence similarity with validly published bacterial species, but not reported in Korea, were determined to be unrecorded anaerobic bacterial species in Korea.
윤형선(Hyung-Sun Yoon),이미현(Mihyun Lee),김현연(Xuanyan Jin),김수진,이소윤(Soyeon Lee),김연비,유영선(Young-Sun You),이진규(Jin-Kyu Rhee) 한국식품과학회 2016 식품과학과 산업 Vol.49 No.4
The potentialities of 3D printing technology are discussed from technical and research-oriented perspectives for industrial manufacturing of a variety of food products. Currently, 3D printing technology has advanced to enable us to process or cook innovative foods. However, food-based materials for 3D printing are still limited in terms of eating qualities, nutritional values and functionality as well as industrial production. Therefore, this uprising issue on alternative food processing techniques especially focused on the exploration of new food materials combined with these 3D printing technologies needs to be re-spotlighted, and then solved to pave the way to this innovative and sensational area of investigation with more accessibility. In this review, previous research work and industrial applications conducted by frontier research groups in this field are covered, then to open discussion for future research on the 3D printing of food.