Use of Green Tea Extract and Rosemary Extract in Naturally Cured Pork Sausages with White Kimchi Powder

Jiye Yoon,Su Min Bae,Seung Hwa Gwak,Jong Youn Jeong 한국축산식품학회 2021 한국축산식품학회지 Vol.41 No.5

The impact of green tea extract powder and rosemary extract powder, alone or in combination, on the quality characteristics of naturally cured pork sausages produced with white kimchi powder as a nitrate source was evaluated. Ground pork sausages were assigned to one of seven treatments: control (0.01% sodium nitrite and 0.05% sodium ascorbate), treatment 1 (0.3% white kimchi powder and 0.05% green tea extract powder), treatment 2 (0.3% white kimchi powder and 0.1% green tea extract powder), treatment 3 (0.3% white kimchi powder and 0.05% rosemary extract powder), treatment 4 (0.3% white kimchi powder and 0.1% rosemary extract powder), treatment 5 (0.3% white kimchi powder, 0.05% green tea extract powder, and 0.05% rosemary extract powder), and treatment 6 (0.3% celery juice powder, 0.05% green tea extract powder, and 0.05% rosemary extract powder). Naturally cured products had lower (p<0.05) cooking yield and residual nitrite content than control sausages. However, compared to the control, naturally cured products with white kimchi powder (treatments 1 to 5) showed similar the pH, oxidation-reduction potential, CIE L* values, CIE a* values, nitrosyl hemochrome content, total pigment content, and curing efficiency to the control. When the amount of green tea extract powder or rosemary extract powder was increased to 0.1% (treatments 2 and 4), lipid oxidation was reduced (p<0.05). These results indicate that green tea extract powder, rosemary extract powder, and white kimchi powder may provide an effective solution to replace synthetic nitrite and ascorbate used in traditionally cured products.

Effects of Phosphate Replacements on the Physicochemical Properties of Naturally Cured Ground Pork Sausages

Jiye Yoon,Su Min Bae,Seung Hwa Gwak,Seonyeong Kang,Da Hun Jeong,Eunjin Yun,Minji Kang,Youngmin Heo,Jong Youn Jeong 한국식품영양과학회 2021 한국식품영양과학회 학술대회발표집 Vol.2021 No.10

This study investigated the effects of phosphate replacements on the physicochemical properties of naturally cured pork sausages during refrigerated storage. All samples were added 0.4% radish powder (150 ppm NaNO₃), 0.04% starter culture, and 0.05% sodium ascorbate. The experiment groups included: NC (no sodium tripolyphosphate), PC (0.5% sodium tripolyphosphate), OSC (0.5% oyster shell calcium), CF (0.5% citrus fiber), and DPP (0.5% dried plum powder). OSC showed similar (P>0.05) cooking loss to the PC and this result was supported by higher (P<0.05) pH of OSC. Although OSC had higher (P<0.05) total fluid separation than PC, showed lower (P<0.05) than NC, CF, and DPP. However, no differences (P>0.05) for TBARS were observed across all samples. In texture profile analysis, hardness, gumminess, and chewiness between PC and OSC were not different (P>0.05). In addition, OSC had greater (P<0.05) cohesiveness and springiness than CF and DPP. In this study, naturally cured sausages with OSC have the potential to produce quality attributes comparable to those with synthetic phosphate.

Forward osmosis as appropriate technology with starch-based draw agent

Yoon, Hongsik,Kim, Jiye,Yoon, Jeyong Informa UK (Taylor Francis) 2016 Desalination and Water Treatment Vol.57 No.22

<P>The appropriate technology (AT) has been gaining attention for securing safe water resources in developing countries. Despite its promising energy-saving operation, forward osmosis (FO) system is a lack of suitable draw agent to be implemented as an AT. In this study, we propose a conceptual small-scale FO system with a starch-based draw agent. This FO system successfully produced about 17.3L/m(2)d of drinking water and achieved 95% of the arsenic removal rate using a starch paste combined with amylase as a draw agent. The osmotic pressure, which is necessary for producing permeate water, was generated by small molecules, such as maltose. These molecules were formed from the decomposition of starch by amylase. Because the draw agent used in this study is edible, the permeate water is directly drinkable without any further separation. In addition, diverse starch-containing foods such as flour, raw potatoes, raw sweet potatoes, and bananas were also confirmed as an alternative starch source for draw agent.</P>

Refinements of Adipofascial flap for Small Defects of Fingers and Toes: Indication and Surgical Tips

Chung, Yoon-Kyu,Choi, Jin-Hee,Kim, Jiye,Chung, Seum The Korean Society for Microsurgery 2016 Archives of reconstructive microsurgery Vol.25 No.2

Purpose: Reconstruction of small defects of the dorsal fingers and toes is a challenging task. Although adipofascial flap is widely used for these areas, additional refinements are warranted. In this paper, we define the appropriate defect size in the finger and toes that can be treated with the adipofascial flap, refine its surgical indications and present a few surgical tips. Materials and Methods: Twelve patients with dorsal defects of the fingers and toes were treated with a random-type adipofascial turn-over flap and skin graft. If the defect area exceeded the size that could be covered by a conventional design, the flap base was designed in oblique or curvilinear fashion to lengthen the flap. For accurate defect coverage, the width of the flap base was designed in an asymmetrical shape depending on the defect configuration, varying the width from 0.3 to 1.0 cm, as opposed to the standard 0.5 to 1.0 cm width. Moreover, the lateral limit of the flap was defined as the lateral axial line. The size of the defect ranged from $3.0{\times}1.7cm$ to $1.5{\times}1.3cm$. Results: All flaps survived completely. Gliding function of the hand was well preserved and there was no evidence of tendon adhesion. Conclusion: The small defect in the dorsal finger and toe can be defined as less than one phalanx-length, measuring about $3.0{\times}2.0cm$ in size. If the defect exceeds this dimension, it is recommended that a different option be considered. We believe the adipofascial flap is an excellent option for treating small defects.

RuO₂ coated blue TiO₂ nanotube array (blue TNA-RuO₂) as an effective anode material in electrochemical chlorine generation

Kim, Jiye,Kim, Choonsoo,Kim, Seonghwan,Yoon, Jeyong THE KOREAN SOCIETY OF INDUSTRIAL AND ENGINEERING 2018 JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY -S Vol.66 No.-

<P><B>Abstract</B></P> <P>Blue TiO<SUB>2</SUB> nanotube array (blue TNA) has gained interest as a highly effective and low-cost material in electrochemical chlorine generation. Hydroxyl radicals mediated chlorine generation is the major pathway (indirect pathway) on the blue TNA which showed lower efficiency than direct pathway on dimensionally stable anodes. In this study, RuO<SUB>2</SUB> coated blue TNA (blue TNA-RuO<SUB>2</SUB>) was fabricated, which exhibited a higher current efficiency (96%) than that of the blue TNA and RuO<SUB>2</SUB>. The excellent performance of the blue TNA-RuO<SUB>2</SUB> is attributed to the simultaneous reaction of direct pathway on the RuO<SUB>2</SUB> and indirect pathway on the blue NTA together.</P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

총 설 : DSA 전극에서 염소 발생 메커니즘

김지예 ( Jiye Kim ),김춘수 ( Choonsoo Kim ),김성환 ( Seonghwan Kim ),윤제용 ( Jeyong Yoon ) 한국화학공학회 2015 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.53 No.5

클로로알카리 산업은 염화나트륨 수용액의 전기분해로 연간 약 7천만 톤의 가성소다 및 염소를 생산하는 전 세계적으로 가장 큰 전기화학 공정 중 하나이다. 클로로알카리 공정에서는 DSA(Dimensionally Stable Anodes) 전극인 RuO2 및 IrO2를 주로 사용하여 염소를 생산하며 상업적으로 사용되고 있는 전극에 비하여 염소 발생 효율이 높은 전극을 개발하려는 연구가 계속되고 있다. 그러나 보다 염소 발생 효율이 좋은 전극을 개발하기 위해서는 DSA 전극에서의 염소 발생 메커니즘에 대한 이해가 뒷받침되어야 한다. 따라서 본 글에서는 기존 연구를 중심으로 DSA 전극에서 염소 발생 메커니즘 연구가 현재까지 어떻게 발전되어 왔는지 검토하고 염소 발생 메커니즘의 핵심적인 요인들을 분석 및 정리하여 DSA 전극에서 염소 발생을 체계적으로 이해하는데 도움이 되고자 한다. Chlor-alkali industry is one of the largest electrochemical processes which annually producing 70 million tons of sodium hydroxide and chlorine from sodium chloride solution. DSA(R) (Dimensionally Stable Anodes) electrodes such as RuO2 and IrO2, which is popular in chlor-alkali process, have been investigated to improve the chlorine generation efficiency. Although DSA electrode has been developed with various researches, understanding of the chlorine evolution mechanism is essential to the development of highly efficient DSA electrode. In this review paper, chlorine generation mechanisms are summarized and that of key factors are identified to systematically understand the chlorine generation mechanism. Rate determining step, effect of pH, reaction intermediate, and electrode crystal structure were intensively overviewed as key factors of the chlorine mechanism.

유방암 환자의 MRI에서 발견된 Suspicious Lesion에 대한 Second look US 유용성 평가

민지예(Jiye Min),김현진(Hyunjin Kim),윤향이(HyangYi Yoon),류희연(Heeyeon Ryu),이원홍(Wonhong Lee) 대한초음파의료영상학회 2017 대한초음파의료영상학회 학술대회 초록집 Vol.2 No.1

Electrochemical Peroxodisulfate (PDS) Generation on a Self-Doped TiO₂ Nanotube Array Electrode

Kim, Jiye,Lee, Changha,Yoon, Jeyong American Chemical Society 2018 INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH - Vol.57 No.33

<P>Peroxodisulfate (PDS, S<SUB>2</SUB>O<SUB>8</SUB><SUP>2-</SUP>) is one of the strong oxidants (<I>E</I>°[S<SUB>2</SUB>O<SUB>8</SUB><SUP>2-</SUP>/HSO<SUB>4</SUB><SUP>-</SUP>] = 2.12 V<SUB>NHE</SUB>), which is widely used for radical polymerization or wastewater treatment. In electrochemical PDS generation, its efficiency highly depends on the •OH generating electrode materials. A boron-doped diamond (BDD) used in electrochemical PDS generation is very expensive prompting the need for new electrode materials for PDS generation. This study reports the self-doped TiO<SUB>2</SUB> nanotube array electrodes (blue and black TNAs) for PDS generation which are cheap and effective for generating a significant amount of •OH and comparable to BDD electrodes. Blue and black TNA electrodes were excellent for PDS generation exhibiting high current efficiencies for PDS generation (46% and 22%, respectively). Similar to the BDD electrode, it was also confirmed that •OH was the key precursor to the PDS generation on the self-doped TNA electrodes from the linear relationship between the PDS generation rate and •OH generation.</P> [FIG OMISSION]</BR>

^1H and ^13C NMR Data on Hydroxy/methoxy Flavonoids and the Effects of Substituents on Chemical Shifts

Hyuk Yoon,이영한,Jun Cheol Park,Sunhee Lee,Doseok Hwang,Geunhyeong Jo,Jiye Hyun,Sunglock Eom,Yoongho Lim,Yeonjoong Yong 대한화학회 2011 Bulletin of the Korean Chemical Society Vol.32 No.6

no abstract

Sensitive Detection of Nucleic Acid Biomarkers Using Transcription Mediated Isothermal Amplification

Taehwi YOON,Seokjoon KIM,Jiye SHIN,Ki Soo PARK 한국생물공학회 2021 한국생물공학회 학술대회 Vol.2021 No.10

Nucleic acid biomarkers such as microRNAs (miRNA) involved in various biological processes can be used for early diagnosis and prognosis of various cancers. Quantitative reverse transcription PCR is the gold standard method to detect nucleic acid biomarkers in clinical settings, but it requires expensive equipment and complicated primer designs, thus hindering its use in the field. Herein, we developed a simple, cost-effective strategy for the multiplex detection of nucleic acid biomarkers using light-up RNA aptamers as the key detection component. In principle, the presence of target nucleic acids produces a large amount of light-up RNA aptamers such as Spinach and Mango aptamers through strand displacement amplification in combination with transcription amplification. Consequently, light-up RNA aptamers bind to their corresponding fluorogens and emit highly enhanced fluorescence signals at different wavelengths, which enables the multiplex detection of target nucleic acids. With the proposed strategy, target miRNAs such as miR21 and miR141 were simultaneously determined with limits of detection of 0.955 fM and 0.195 fM, respectively. This assay was successfully applied for the quantification of miRNAs in different cell lines, demonstrating its practical utility in clinical diagnosis and prognosis.