Shin Park
Daegu University
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Publication
Featured researches published by Shin Park.
Journal of Photochemistry and Photobiology B-biology | 2011
Hwa-Jin Suh; Kyung-Seok Lee; Seong-Ryul Kim; Myoung-Ho Shin; Sanggyu Park; Shin Park
The 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging effect and total phenolic contents were evaluated for the screening of singlet oxygen ((1)O(2)) quenching efficacy of various seed extracts from Rumex crispus L. The butanol and ethyl-acetate extracts displayed remarkable effect of DPPH as compared to positive control ascorbic acid. The concentrations (QC(50)) of butanol and ethyl-acetate extracts required to exert 50% reducing effect on (1)O(2) were found to be 116 and 82 μg mL(-1), respectively. Both extracts were also found to protect the in vitro biological system from the detrimental effect of (1)O(2) on type II photosensitization in Escherichia coli, red blood cell, lactate dehydrogenase and histidine. Among all the tested extracts, the ethyl-acetate and butanol extracts contained higher amount of total phenolic contents. The results suggest that our study may contribute to the development of new bioactive products with potential applications to reduce photo-produced oxidative stress involving reactive oxygen species in living organisms.
Journal of Plant Biology | 2006
Jong-Sug Park; In Sun Kim; Moon Soo Cho; Shin Park; Sang Gyu Park
Carrot seeds normally have surface spines. The availability of a spineless mutant would be agronomically beneficial, eliminating the current efforts to remove those spines pre-sowing. Furthermore, the identification of spine-specific genes would provide insights into spine development in wild-type carrot seed. This effort could be facilitated through the use of an annealing control primer (ACP) system. Here, we employed a new and accurate reverse transcriptionpolymerase chain reaction (RT-PCR) that involves ACPs for identifying genes of interest. With these techniques, 11 expressed sequence tags (ESTs) were obtained for cloning and sequencing the genes that are differentially expressed in wild-type spiny seeds, but not in the spineless mutant. In all, 7 cDNAs exhibited significant sequence similarity with known genes from other species. These included cell wall-associated hydrolase, tail fiber assembly protein, transcriptional regulatory protein, berberine bridge enzyme, S-adenosyl methionine synthase, transketolase, and phenylalanyl t-RNA synthetase beta chain. Four other cDNA sequences had no significant identities with known genes. As revealed by RT-PCR, these genes regulate spine formation during the developmental stage. Our results suggest that PCR-based differential display RT-PCR techniques are a very useful tool for identifying spine-specific genes from carrot seeds.
Journal of The Korean Society for Applied Biological Chemistry | 2011
Hwa-Jin Suh; Sanggyu Park; Shin Park
Korean Journal of Food Preservation | 2015
Yeon-Soon Kim; Hwa-Jin Suh; Shin Park
Korean Journal of Food Preservation | 2013
Yeon-Soon Kim; Hwa-Jin Suh; Shin Park
Journal of Applied Biological Chemistry | 2017
Hwa-Jin Suh; Sanggyu Park; Yeon-Soon Kim; Shin Park
Korean Journal of Food Preservation | 2016
Yeon-Soon Kim; O-Jun Kwon; Hwa-Jin Suh; Shin Park
Korean Journal of Food Science and Technology | 2004
Sang-Gyu Park; Shin Park
Korean Journal of Environmental Agriculture | 2001
Jong-Bae Chung; Sanggyu Park; Shin Park
Applied Biological Chemistry | 2001
Jin-Sup Eom; Nu-Ri Park; Sanggyu Park; Shin Park; Jong-Bae Chung