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Eunah Choi

Yonsei University · 医学

研究室紹介

Professor Eunah Choi's research lab specializes in analytical and clinical nutrition science, with a focus on the assessment of food additives, dietary components, and their impact on chronic disease risk in specific populations. The lab develops and validates sensitive, high-throughput analytical methods—primarily using LC-MS/MS and GC-MS—for detecting food contaminants such as synthetic colorants, non-nutritive sweeteners, and propylene glycol in food matrices. A key research direction involves investigating the associations between dietary intake (e.g., calcium, hormone therapy) and health outcomes, particularly in postmenopausal women and individuals with genetic conditions like Turner syndrome. The lab integrates analytical chemistry with epidemiological data from national health surveys to support public health policy and food safety regulation.

food safetyanalytical method validationpostmenopausal healthdietary biomarkersfood additives

Research Overview

Papers
37
Total Citations
261
Papers (5y)
20
Primary Field
医学

Research Output Trend

Figures are computed from collected data and may differ slightly.

Publications per year (5y)
20total
2022
2023
2024
2025
2026
Citations per year (5y)
133total
20222023202420252026

Selected Papers

15
1
Article|59 citations·2022
Development and validation of an ionic chromatography method for nitrite determination in processed foods and estimation of daily nitrite intake in Korea
Ho Soo Lim, Sang Jin Lee, Euna Choi, Soo‐Bin Lee, Hye Seon Nam, Jong Kwon Lee
SJR Q1Food Chemistry
Biomedical EngineeringEngineering
2
Article|40 citations·2022
Effects of sarcopenia and sarcopenic obesity on joint pain and degenerative osteoarthritis in postmenopausal women
Hye In Kim, So Hyun Ahn, Yup Kim, Ji Eun Lee, Euna Choi, Seok Kyo Seo
SJR Q1Scientific ReportsOA

Abstract This study aimed to identify the prevalence of sarcopenia, obesity, and sarcopenic obesity and examine their association with radiographic knee osteoarthritis (OA) and knee pain in Korean postmenopausal women. This cross-sectional study utilized the data from Korean National Health and Nutrition Examination Surveys 2009–2011. The participants were categorized into 4 groups based on body composition: either sarcopenic (appendicular skeletal muscle < 23%) or not, either obese (body mas

RheumatologyMedicine
3
Article|29 citations·2020
Analysis of illegal colourants (citrus red II, diethyl yellow, dimethyl yellow, metanil yellow and rhodamine B) in foods by LC-UV and LC-MS/MS
Ho Soo Lim, Euna Choi, Jin-Hye Lee, Gunyoung Lee, MeeKyung Kim
SJR Q2Food Additives & Contaminants Part A

Synthetic colourants are highly regulated due to their correlation with a variety of health hazards. Regulatory services must be able to detect the substances in a cost-effective, efficient, and sensitive manner. LC-UV and LC-MS/MS methods have been developed to simultaneously detect five illegal colourants in foods, such as: citrus red II, diethyl yellow, dimethyl yellow, metanil yellow, and rhodamine B. This method showed good linearity (<i>R</i> <sup>2</sup> > 0.99) and low limits of detectio

Analytical ChemistryChemistry
4
Article|27 citations·2017
Development and validation of HPLC method for the determination of ferrocyanide ion in food grade salts
Ho Soo Lim, Ju Young Hwang, Euna Choi, Gunyoung Lee, Sang Sun Yoon, MeeKyung Kim
SJR Q1Food Chemistry
Analytical ChemistryChemistry
5
Article|18 citations·2015
Rapid HPLC determination of gastrodin in Gastrodiae Rhizoma
Ju-Gyeong Lee, Sung-Ok Moon, Seyong Kim, Eun Ju Yang, Ju‐Sik Min, Ju-Hee An, Euna Choi, Kwang‐Hyeon Liu, Eun Ji Park, Hwa-Dong Lee, Kyung‐Sik Song
Journal of the Korean Society for Applied Biological Chemistry
PharmacologyMedicine
6
Article|15 citations·2018
Improved method for the determination of 12 non-nutritive sweeteners and monitoring in various foods using liquid chromatography–tandem mass spectrometry
Ho Soo Lim, Euna Choi, Ju Young Hwang, Gunyoung Lee, Sang Soon Yun, MeeKyung Kim
SJR Q2Food Additives & Contaminants Part A

An improved and highly sensitive method was developed and validated for the determination of 12 (7 permitted and 5 non-permitted in Korea) non-nutritive sweeteners in various foods using liquid chromatography-electrospray ionisation-tandem mass spectrometry. The chromatographic separation was performed on an Xbridge BEH C18 column (3 mm × 100 mm, 2.5 μm) with gradient elution using 10 mM ammonium acetate in water and 10 mM ammonium acetate in methanol. Sample preparation consisted of simple dilu

Nutrition and DieteticsNursing
7
Article|14 citations·2021
Improved spectrophotometric method for nitrite determination in processed foods and dietary exposure assessment for Korean children and adolescents
Ho Soo Lim, Euna Choi, Sang Jin Lee, Hye Seon Nam, Jong Kwon Lee
SJR Q1Food Chemistry
Biomedical EngineeringEngineering
8
Article|7 citations·2024
Association between Daily Dietary Calcium Intake and the Risk of Cardiovascular Disease (CVD) in Postmenopausal Korean Women
Jae Kyung Lee, Thi Minh Chau Tran, Euna Choi, Jinkyung Baek, Hae-Rim Kim, Heeyon Kim, Bo Hyon Yun, Seok Kyo Seo
SJR Q1NutrientsOA

We aimed to evaluate the association between daily dietary calcium intake and the risk of cardiovascular disease (CVD) in postmenopausal women using data from the Korean National Health and Nutrition Examination Survey (KNHANES). This cross-sectional study included 12,348 women aged 45-70 years who had reached natural menopause. They were classified into three groups according to daily dietary calcium intake: <400 mg, 400-800 mg, and >800 mg. The risks of CVD, stroke, angina, and myocardial infa

Orthopedics and Sports MedicineMedicine
9
Article|7 citations·2017
Optimal design of a concave annular high intensity focused ultrasound transducer for medical treatment
Euna Choi, Yongrae Roh
SJR Q1Sensors and Actuators A Physical
Biomedical EngineeringEngineering
10
Article|7 citations·2023
Effect of catheter-directed ethanol sclerotherapy on ovarian reserve in patients with recurrent endometrioma: comparative analysis with primary endometriosis
Jae Kyung Lee, Kichang Han, Euna Choi, Jinkyung Baek, Hae‐Rim Kim, Man Deuk Kim, Heeyon Kim, Seok Kyo Seo
SJR Q1European Radiology
Reproductive MedicineMedicine
11
Article|6 citations·2024
Implementation of phosphonium salt for high-performance supercapacitors from room to ultra-low temperature conditions
Hoai Van T. Nguyen, Hee Jin Han, Euna Choi, Yong Ho Lee, Kyung‐Koo Lee
SJR Q1Journal of Energy Storage
Electronic, Optical and Magnetic MaterialsMaterials Science
12
Article|5 citations·2023
Effects of Hormone Replacement Therapy on Bone Mineral Density in Korean Adults With Turner Syndrome
SunYoung Kim, Heeyon Kim, Inha Lee, Euna Choi, Jinkyung Baek, Jae Kyung Lee, Hae-Rim Kim, Bo Hyon Yun, Young Sik Choi, Seok Kyo Seo
SJR Q2Journal of Korean Medical ScienceOA

Early onset and appropriate duration of hormone replacement therapy is important for increasing bone mineral density in patients with Turner syndrome. Also, ERT affects differently to TS patients according to mosaicism.

GeneticsBiochemistry, Genetics and Molecular Biology
13
Article|4 citations·2012
여자 고등학교 학생들의 교복재킷 브랜드 선호 및 맞음새 실태에 관한 연구
신새미, 천종숙, 최은아
복식문화연구

The market share of conglomerates is increasing in the Korean school uniform market these days. Functional fit problems occurred. Girls choose slim silhouette often experienced fit problems. The purpose of this study is to probe for functional design elements of high school girls' uniforms. A questionnaire survey was carried out. 202 high school girls took part in the survey. The questionnaire measured school uniform brand preference and size of school uniform jackets. The results of the survey

14
Article|4 citations·2016
Assessment of the dietary intake of propylene glycol in the Korean population
Ho Soo Lim, Ju Young Hwang, Euna Choi, Gun Young Lee, Sang Soon Yun, Tae-Seok Kang
SJR Q2Food Additives & Contaminants Part A

An improved method for the analysis of propylene glycol (PG) in foods using a gas chromatography-flame ionisation detector (GC-FID), with confirmation by GC-MS, was validated by measuring several analytical parameters. The PG concentrations in 1073 products available in Korean markets were determined. PG was detected in 74.1% of the samples, in a concentration range from the limit of detection (n.d., 0.39 μg ml(-1)) to 12,819.9 mg kg(-1). The Korea National Health and Nutrition Examination Surve

Nutrition and DieteticsNursing
15
Article|3 citations·2010
국내 캐릭터 커리어 여성복 브랜드의 스타일 정체성에 대한 소비자 인식 연구
박재민, 천종숙, 최선희, 최은아
복식문화연구

The purpose of this study was to figure out consumer's recognition on brand's peculiar style on Korean contemporary women's apparel brand. The contemporary women's apparel brands show advanced and stylish merchandise at better price points. This segment of the Korean ready-to-wear market has been growing fast in last decades. Four contemporary women's apparel brands(I, K, M, and T) were participated in this study. The data(n=216) were collected with questionnaire survey at 24 apparel retail shop

Research Areas

Biomedical EngineeringReproductive MedicineGeneticsAnalytical ChemistryNutrition and DieteticsElectronic, Optical and Magnetic Materials

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