Jaehyun Ahn

Dr. Jaehyun Ahn


Research Focus & Metrics

Academic Career Length

25Years (2002-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 July 2024 in Food Science and Biotechnology
Verified
Journal Article
Open access
PDF file
Seockmo KuSeockmo Ku
Seockmo Ku
Md Ariful HaqueMd Ariful Haque
Md Ariful Haque
MJMin Ji Jang
Min Ji Jang
Jaehyun AhnJaehyun Ahn
Jaehyun Ahn
DCDeokyeong Choe
Deokyeong Choe
MPMyeong Soo Park
Myeong Soo Park
This review explores the role and health impacts of probiotics, focusing specifically on Bifidobacterium spp. It highlights the functionalities that Bifidobacteria can provide, underscored by the historical evolution of definitions and technological advancements related to probiotics. By examining the association between Bifidobacteria and longevity, this review suggests new avenues for health enhancement. Highlighting case studies of centenarians, it presents examples related to human aging, illuminating the potential links to longevity through research on Bifidobacterium strains found in centenarians. This review not only emphasizes the importance of current research but also advocates for further investigation into the health benefits of Bifidobacteria, underlining the necessity for continuous study in the nutraceutical field.

26 June 2024 in Science of The Total Environment
Verified
Journal Article
Open access
Md Ariful HaqueMd Ariful Haque
Md Ariful Haque
NNNirmalendu Deb Nath
Nirmalendu Deb Nath
TJTony Johnston
Tony Johnston
SHSamuel Haruna
Samuel Haruna
Jaehyun AhnJaehyun Ahn
Jaehyun Ahn
Seockmo KuSeockmo Ku
Seockmo Ku
Since the discovery of antibiotics, penicillin has remained the top choice in clinical medicine. With continuous advancements in biotechnology, penicillin production has become cost-effective and efficient. Genetic engineering techniques have been employed to enhance biosynthetic pathways, leading to the production of new penicillin derivatives with improved properties and increased efficacy against antibiotic-resistant pathogens. Advances in bioreactor design, media formulation, and process optimization have contributed to higher yields, reduced production costs, and increased penicillin accessibility. While biotechnological advances have clearly benefited the global production of this life-saving drug, they have also created challenges in terms of waste management. Production fermentation broths from industries contain residual antibiotics, by-products, and other contaminants that pose direct environmental threats, while increased global consumption intensifies the risk of antimicrobial resistance in both the environment and living organisms. The current geographical and spatial distribution of antibiotic and penicillin consumption dramatically reveals a worldwide threat. These challenges are being addressed through the development of novel waste management techniques. Efforts are aimed at both upstream and downstream processing of antibiotic and penicillin production to minimize costs and improve yield efficiency while lowering the overall environmental impact. Yield optimization using artificial intelligence (AI), along with biological and chemical treatment of waste, is also being explored to reduce adverse impacts. The implementation of strict regulatory frameworks and guidelines is also essential to ensure proper management and disposal of penicillin production waste. This review is novel because it explores the key remaining challenges in antibiotic development, the scope of machine learning tools such as Quantitative Structure-Activity Relationship (QSAR) in modern biotechnology-driven production, improved waste management for antibiotics, discovering alternative path to reducing antibiotic use in agriculture through alternative meat production, addressing current practices, and offering effective recommendations.

17 April 2022 in International Journal of Food Properties
Verified
Journal Article
Open access
Jaehyun AhnJaehyun Ahn
Jaehyun Ahn
GBGary E. Briers
Gary E. Briers
Mathew BakerMathew Baker
Mathew Baker
EPEdwin Price
Edwin Price
DDDagbegnon Clement Sohoulande Djebou
Dagbegnon Clement Sohoulande Djebou
SKShahriar Kibriya
Shahriar Kibriya
This article investigated household-level food security for Ghana, Liberia, and Senegal. Different agroclimatic, ecological, social, and farming conditions in West Africa were represented. Using data-driven Random Forest and Chi-Square Automatic Interaction Detection (CHAID) decision tree methodology, this study classified 644 Ghanaian, 323 Liberian, and 510 Senegalese households for comparison and interpretation on food security. The predictors growing Liberian and Senegalese decision trees imply community support, diverse selling channels outside villages, resolving the dispute over farmland, and increasing community-level investment for food availability and access demonstrate household food security. Predictor importance on food security for Ghana highlighted the role of independent producers and food suppliers toward stability. Household food security or insecurity was distinguished by location-specific and gender-led households in Liberia and Senegal. Practically, the results presented a need to step-up agricultural education and extension based on an empirical field survey and its interpretations. The results can add considerations to the role of farming households as independent and individual suppliers and consumers to long-standing dimensions of food security, i.e., food availability, access, and stability.

1 August 2002 in Journal of Korea Water Resources Association
Verified
Journal Article
Open access
JRJae-Hea Ryu
Jae-Hea Ryu
DLDong-Ryul Lee
Dong-Ryul Lee
Jaehyun AhnJaehyun Ahn
Jaehyun Ahn
YYYong-Nam Yoon
Yong-Nam Yoon

24 April 2025 in Sustainable Development
Verified
Journal Article
Open access
Anjorin Ezekiel AdeyemiAnjorin Ezekiel Adeyemi
Anjorin Ezekiel Adeyemi
Jaehyun AhnJaehyun Ahn
Jaehyun Ahn
ZXZhihong Xu
Zhihong Xu
HMHeiwa Muko
Heiwa Muko
Mathew BakerMathew Baker
Mathew Baker
Education plays a pivotal role in achieving the Sustainable Development Goals (SDGs), with education for sustainable development (ESD) fostering the knowledge, skills, and attitudes necessary for a sustainable future. ESD emphasizes holistic learning, critical thinking, problem‐solving, and participatory decision‐making. The theory of planned behavior (TPB), which serves as the guiding framework for this study, posits that intentions shape planned actions and are influenced by attitudes, subjective norms, and perceived behavioral control. While research underscores the importance of strategic teaching and student participation in sustainability education, empirical evidence remains limited regarding how students' attitudes, norms, and perceived behavioral control shape their sustainability intentions. This study examines the impact of an ESD course on voluntary sustainability actions among Japanese ( n = 106) and Nigerian ( n = 27) students. Using a quasi‐experimental design, it assesses the influence of classroom discussions and SDG communications on students' intentions and behaviors. Results analyzed with Coarsened Exact Matching (CEM) and logistic regression reveal that classroom discussions significantly enhance students' intentions and subsequent SDG‐related actions (OR = 3.95, p = 0.002). Additionally, frequent exposure to SDG communications increases the likelihood of students engaging in voluntary sustainability actions. The findings suggest that structured discussions foster attitudinal development, reinforcing sustainability as a socially endorsed behavior. Moreover, SDG messaging enhances perceived behavioral control by normalizing sustainability practices and reducing perceived barriers to action. For ESD to be most effective, it should integrate participatory learning environments and strategic communication approaches that strengthen self‐efficacy, reinforce social norms, and sustain long‐term behavioral engagement.

Jaehyun AhnJaehyun Ahn
Jaehyun Ahn
GBGary Briers
Gary Briers
Mathew BakerMathew Baker
Mathew Baker
EPEdwin Price
Edwin Price
Robert StrongRobert Strong
Robert Strong
PLPeng Lu
Peng Lu
Sub-Saharan Africa will accommodate more population this century by having a multitude of births across the continent. Family planning methods provide women with techniques to manage their health and wellbeing. This study investigated how radio communications in family planning changed the perception of Ghanaian, Liberian, and Senegalese mothers toward having fewer children. Univariate and multivariate linear regression results after coarsened exact matching (CEM) with selected covariates for 15- to 49-year-old mothers from demographic and health survey (DHS) data implied the effectiveness of radio communications. This effort supports the need for further research on tailored communication methods for West African mothers over time.