· 미생물 안전성 및 기능성 검증 연구

· 숙주 장균총 분석 및 장균총 기반 질병 치료 연구

· 장균총 조절 및 장균총 조절을 위한 기능성 유용 미생물 (미생물 대사체) 연구

· 개인 맞춤형 프로바이오틱스 및 영양섭취 플랫폼 연구

· 2012 슬로바키아, Probiotics and Prebiotics 국제 과학 컨퍼런스 젊은 과학자상

· 2013 슬로바키아, Probiotics and Prebiotics 국제 과학 컨퍼런스 젊은 과학자상

· 2013 미국 OMICS 컨퍼런스 젊은 과학자 상

· 2014 말레이시아 유익균 국제 컨퍼런스 젊은 과학자 상

· 2015 프랑스 Food Micro, 젊은 과학자 상 수상

· 2013 ~ 2015 : 한국 국립 중앙 연구소 박사과정 장학생

· 2016 헝가리 부다페스트 Probiotics and Prebiotics 국제 과학 회의 초청 연사

· 2017 한국 부산 미생물 학회 (Cell Biotech Symposium) 국제 학술회의 초청 연사

· 2018 헝가리 부다페스트 Probiotics and Prebiotics 국제 과학 회의 초청 연사

· Lee HJ, Yoon HS, Ji YS, Kim HN, Park HJ, Lee JE, et al., 2011. Functional properties of Lactobacillus strains isolated from kimchi. International Journal of Food Microbiology 145: 155-161.

·Yoon HS, Ju JH, Kim HN, Lee JE, Park HJ, Ji YS et al., 2011. Lactobacillus rhamnosus BFE 5264 and Lactobacillus Plantarum NR74 promote cholesterol excretion through the up-regulation of ABCG5/8 in Caco-2 cells. Probiotics and Antimicrobial Proteins 3: 194-203.

·Ji YS, Kim HN, Park HJ, Lee JE, Yeo SY, Yang JS, Park SY et al., 2012. Modulation of the murine microbiome with a concomitant anti-obesity effect by Lactobacillus rhamnosus GG and Lactobacillus sakei NR28. Beneficial Microbes 3: 13-22.

·Yoon HS, Ju JH, Kim HN, Park HJ, Ji YS, Lee JE et al., 2013. Reduction in cholesterol absorption in Caco-2 cells through the down-regulation of Niemann-Pick C1-like 1 by the putatitve probiotic strains Lactobacillus rhamnosus BFE5264 and Lactobacillus Plantarum NR74 from fermented foods. International Journal of Food Sciences and Nutrition 64: 44-52.

·Kim KS, Hoh DH, Ji YS, Do HK, Lee BJ and Holzapfel WH, 2013. Impact of light intensity, CO2 concentration and bubble size on growth and fatty acid composition of Arthrospira (Spirulina) platensis KMMCC CY-007. Biomass and Bioenergy 49: 181-187.

·Ji YS, Kim HN, Park HJ, Lee JE, Lee HJ, Shin HK et al., 2013. Functionality and safety of lactic bacterial strains from Korean kimchi. Food Control 31: 467-473.

·Lee SJ, Ji YS, Kim YJ, Lee BJ, Hong YC and Kim M, 2013. Plasma production by multi-phase alternating current underwater discharge and its applications to disinfection of micro-organisms. Desalination and Water Treatment 51: 6224-6229.

·Yang JS, Ji YS, Park HJ, Lee JE, Yeo SY, Shin HK and Holzapfel WH, 2014. Selection of functional lactic acid bacteria as starter cultures for the fermentation of Korean leek (Allium tuberosum Rottler ex Sprengel.). International Journal of Food Microbiology 191: 164-171.

·Kim KS, Choi JH, Ji YS, Park SY, Do HK, Whang CW et al., 2014. Impact of bubble size on growth and CO2 uptake of Arthrospira (Spirulina) platensis KMMCC CY-007. Bioresource Technology 170: 310-315. Park HJ, Yeo SY, Ji YS, Lee JE, Yang JS, Park SY et al., 2014. Autoinducer-2 associated inhibition by Lactobacillus sakei NR28 reduces virulence of enterohaemorrhagic Escherichia coli O157:H7. Food Control 45: 62-69.

·Yeo SY, Park HJ, Ji YS, Park SY, Yang JS, Lee JE et al., 2015. Influence of gastrointestinal stress on autoinducer-2 activity of two Lactobacillus species. FEMS Microbiology Ecology 91, fiv065.

·Kim BB, Park KY, JI YS, Park SY, Holzapfel WH, Hyun CK. 2016. Protective effects of Lactobacillus rhamnosus GG against dyslipidemia in high-fat diet-induced obese mice. Biochemical and Biophysical Research Communications: 473(2):530-6. doi: 10.1016/j.bbrc.2016.03.107. Epub 2016 Mar 23.

·Jung HY, Ji YS, Kim NR, Kim DY, Kim KT, Choi BH. 2016. A Fomitopsis pinicola Jeseng formulation has an antiobesity effect and protects against hepatic steatosis in mice with high-fat diet-induced obesity. Evidence-based Coplementary and Alternative Medicine Volume 2016, Article ID 7312472, 10 pages

·Park SY, Ji YS, Park HJ, Lee KY, Park HR, Beck BR, Shin HK, Holzapfel WH. 2016. Evaluation of functional properties of lactobacilli isolated from Korean white kimchi. Food Control 69: 5-12.

·Park SY, Ji YS, HY Jung, HJ Park, JH Kang, SH Choi et al., 2016. Lactobacillus plantarum HAC01 regulates gut microbitoa and adipose tissue accumulation in a diet-induced obesity murine model. Applied Microbiology and Biotechnology: 101(4):1605-1614. doi: 10.1007/s00253-016-7953-2. Epub 2016 Nov 17.

·Choi SH, Ji YS, Park SY, Mathara J, Holzapfel WH, Kang JH., 2017. Complete genome sequence of Lactobacillus rhamnosus BFE5264, isolated from Maasai Traditional Fermented Milk. Genome Announcements: doi: [10.1128/genomeA.00563-17]

·Kim MS, Kim B, Park H, Ji YS, Holzapfel W, Kim DY, Hyun CK., 2018. Long-term fermented soybean paste improves metabolic parameters associated with non-alcoholic fatty liver disease and insulin resistance in high-fat diet-induced obese mice. Biochemical and Biophysical Research Communications 495, 1744-1751.

·Jung HY, Kim B, Ji YS, Ryu HG, Park SY, Choi SH et al., 2018. Amodiaquine improves insulin resistance and lipid metabolism in diabetic model mice. Diabetes, Obesity and Metabolism, 20(7):1688-1701. doi: 10.1111/dom.13284. Epub 2018 Apr 14.

·Ji YS, Park SY, Park HR, Hwang EC, Shin HK, Pot B, Holzapfel WH., 2018. Modulation of active gut microbiota by Lactobacillus rhamnosus GG in a diet induced obesity murine model. Frontiers in Microbiology 10(9):710, doi:10.3389/fmicb.2018.00710

·Ji YS, Chung YM, Park SY, Jeong DH, Kim BJ, Holzapfel WH., 2018. Dose dependent anti-obesity effect of three different Lactobaillus sakei strains using a diet induced obese murine model. PeerJ Preprints, http://doi.org/10.7287/peerj.preprints.26959v1

·Park SY, Kang JH, Choi SH, Park HR, Hwang EC, Kang YG, Kim AR, Holzapfel WH., Ji YS., 2018. Cholesterol-lowering effect of Lactobacillus rhamnosus BFE5264 and its influence on the gut microbiome and propionate level in a murine model. PlLoS One 13(8): e0203150. http://doi.org/10.1371/journal.pone.0203150

·Hwang EC, Kang SW, Park HR, Park SY, Ji YS, Holzapfel WH., 2018. Differences in anxiety levels of various murine models in relation to the gut microbiota composition. Biomedicines, in-press