Search results for: Hancheol Jeon

Items from 1 to 8 out of 8 results

article

Discoloration in the marine red algae Pyropia: causative factors and exploiting the biotechnological potential of a waste resource

Kichul Cho, Jina Heo, Sang‐Moo Lee, Jinwook Han, more

Reviews in Aquaculture > 13 > 2 > 822 - 835

Pyropia (Porphyra, referred to as ‘Gim’ in Korea or ‘Nori’ in Japan), an economically valuable alga, has long been consumed as seafood, especially in north‐east Asian countries. Its well‐established conventional mass cultivation and harvesting methods in coastal areas widen the industrial availability of edible Pyropia sp. However, the unexpected discoloration derived from causative factors during...

article

Identification of the carbonic anhydrases from the unicellular green alga Dunaliella salina strain CCAP 19/18

Hancheol Jeon, Jooyeon Jeong, Kwangryul Baek, Zaid McKie-Krisberg, more

Algal Research > 2016 > 19 > C > 12-20

Dunaliella salina is a unicellular halophilic green alga, which can survive even in saturated brine solutions (up to 5.0M NaCl). In D. salina, the carbonic anhydrase (CA, EC 4.2.1.1) is essential for cells to acquire carbon and to cope with the low CO₂ environment under high salt conditions. For the first time, the present study describes the existence of eight genes coding for different types of...

article

Development of a new constitutive expression system for the transformation of the diatom Phaeodactylum tricornutum

Seungbeom Seo, Hancheol Jeon, Seongbin Hwang, EonSeon Jin, more

Algal Research > 2015 > 11 > C > 50-54

Phaeodactylum tricornutum is a pennate model diatom whose entire genome has been sequenced and an expressed sequence tag database established. This study aimed at developing a genetic tool kit to modify the genetic traits of P. tricornutum. A new expression system containing the elongation factor 2 (EF2) promoter fused to the luciferase gene was constructed, resulting in the pPhaT-EF2-Luc vector....

article

Homologous sense and antisense expression of a gene in Dunaliella tertiolecta

Jing Yue Zhang, Hancheol Jeon, Sang Jun Sim, Yew Lee, more

Planta > 2015 > 242 > 4 > 1051-1058

Main conclusion Dunaliella transformation using antisense and sense technology developed in this study will provide powerful tools for functional analysis and pathway-specific metabolic engineering in Dunaliella for industrial applications. Our aim was to investigate the potential of antisense expression and overexpression of a specific gene, the carotenoid biosynthesis-related (CBR) gene,...

article

Improvement of the phosphoenolpyruvate carboxylase activity of Phaeodactylum tricornutum PEPCase 1 through protein engineering

Kwang Suk Chang, Hancheol Jeon, Seungbeom Seo, Yew Lee, more

Enzyme and Microbial Technology > 2014 > 60 > Complete > 64-71

In order to mitigate CO ₂ accumulation and decrease the rate of global warming and climate change, we previously presented a strategy for the development of an efficient CO ₂ capture and utilization system. The system employs two recombinant enzymes, carbonic anhydrase and phosphoenolpyruvate carboxylase, which were originated from microalgae. Although utilization of this integrated...

article

Conversion of carbon dioxide to oxaloacetate using integrated carbonic anhydrase and phosphoenolpyruvate carboxylase

Kwang Suk Chang, Hancheol Jeon, Man Bock Gu, Seung Pil Pack, more

Bioprocess and Biosystems Engineering > 2013 > 36 > 12 > 1923-1928

The development and implementation of strategies for CO₂ mitigation are necessary to counteract the greenhouse gas effect of carbon dioxide emissions. To demonstrate the possibility of simultaneously capturing CO₂ and utilizing four-carbon compounds, an integrated system using CA and PEPCase was developed, which mimics an in vivo carbon dioxide concentration mechanism. We first cloned the PEPCase...

article

Enhanced production of biomass and lipids by supplying CO₂ in marine microalga Dunaliella sp.

Hancheol Jeon, Yew Lee, Kwang Suk Chang, Choul-Gyun Lee, more

Journal of Microbiology > 2013 > 51 > 6 > 773-776

Non-food-based biofuel feedstocks are in high demand worldwide. Among the various feedstocks, microalgae are the most promising feedstock for mitigating atmospheric CO₂ and producing biodiesel. In this study, various concentrations of CO₂, from 0.03 to 12%, were used to investigate their effect on the cell growth, biomass and lipid production and fatty acid composition of Dunaliella sp. in a closed...

article

Expression and Characterization of Codon-Optimized Carbonic Anhydrase from Dunaliella Species for CO₂ Sequestration Application

Bashistha Kumar Kanth, Kiha Min, Shipra Kumari, Hancheol Jeon, more

Applied Biochemistry and Biotechnology > 2012 > 167 > 8 > 2341-2356

Carbonic anhydrases (CAs) have been given much attention as biocatalysts for CO₂ sequestration process because of their ability to convert CO₂ to bicarbonate. Here, we expressed codon-optimized sequence of α-type CA cloned from Dunaliella species (Dsp-aCAopt) and characterized its catalyzing properties to apply for CO₂ to calcite formation. The expressed amount of Dsp-aCAopt in Escherichia coli is...

Filter options

Publication date

Set your own date range

INFONA - science communication portal

Search results for: Hancheol Jeon

Add recipient

Sending message cancelled

Are you sure you want to cancel sending this message?

Send message

Filter options

Publication date

Date range setting

Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.

Keywords

Data set

Journal

Reporting an error / abuse

Sending the report failed

Accessibility options