Search

Your search keyword '"Lim, Taehwan"' showing total 122 results
Start Over Author "Lim, Taehwan"
122 results on '"Lim, Taehwan"'

12. Methods to Screen the Adhesion of Fish Cells on Plant-, Algal- and Fungal-Derived Biomaterials

Author

Joyce, Connor M., Gordon, Edward B., McGivney, Aelish, Li, Xinxin, Lim, Taehwan, Cohen, Malkiel A., and Kaplan, David L.

Abstract

Cellular agriculture, an alternative and innovative approach to sustainable food production, has gained momentum in recent years. However, there is limited research into the production of cultivated seafood. Here, we investigated the ability of fish mackerel cells (Scomber scombrus) to adhere to plant, algal and fungal-based biomaterial scaffolds, aiming to optimize the cultivation of fish cells for use in cellular agriculture. A mackerel cell line was utilized, and metabolic assays and confocal imaging were utilized to track cell adhesion, growth, and differentiation on the different biomaterials. The mackerel cells adhered and grew on gelatin (positive control), zein, and soy proteins, as well as on alginate, chitosan, and cellulose polysaccharides. The highest adhesion and growth were on the zein and chitosan substrates, apart from the gelatin control. These findings provide a blueprint to enhance scaffold selection and design, contributing to the broader field of cellular agriculture through the development of scalable and eco-conscious solutions for meeting the growing global demand for seafood.

Published
2024
Full Text
View/download PDF

21. Liquid Metal-Based Electronic Textiles Coated with Au Nanoparticles as Stretchable Electrode Materials for Healthcare Monitoring

Author

Lim, Taehwan, primary, Kim, Hee Jin, additional, Won, Seoyeon, additional, Kim, Chae Hwa, additional, Yoo, Joohwan, additional, Lee, Joo Hyung, additional, Son, Kwang Suk, additional, Nam, In-Woo, additional, Kim, Kyungmin, additional, Yeo, Sang Young, additional, Yeang, Byeong Jin, additional, Kim, Jung Han, additional, Zhang, Huanan, additional, and Lee, Sohee, additional

Published
2023
Full Text
View/download PDF

22. Effects of roasting and ultrasound‐assisted enzymatic treatment of Nigella sativa L. seeds on thymoquinone in the oil and antioxidant activity of defatted seed meal.

Author

Mashhadi Abolghasem, Fatemeh, Kim, Ryun Hee, Park, Sun Young, Lim, Taehwan, Lee, Haeseong, Hwang, Keum Taek, and Kim, Jaecheol

Subjects
BLACK cumin, OILSEEDS, ROASTING (Cooking), PRINCIPAL components analysis, PETROLEUM, BIOACTIVE compounds
Abstract

BACKGROUND: Black cumin seeds (black seed; BS) contain various bioactive compounds, such as thymoquinone (TQ). Roasting and ultrasound‐assisted enzymatic treatment (UAET) as pre‐treatments can increase the phytochemical content in the BS oil. This study aimed to investigate the effects of pre‐treatments on the TQ content and the yield of the BS oil and to profile the composition of defatted BS meal (DBSM), followed by evaluating antioxidant properties of the DBSM. RESULTS: The extraction yield of crude oil from BS was not affected by the roasting time. The highest extraction yield (47.8 ± 0.4%) was obtained with UAET cellulase‐pH 5 (enzyme concentration of 100%). Roasting decreased the TQ content of the oil, while the UAET cellulase‐pH 5 treatment with an enzyme concentration of 100% yielded the highest TQ (125.1 ± 2.7 μg mL−1). Additionally, the UAET cellulase‐pH 5 treatment increased total phenolics and flavonoids of DBSM by approximately two‐fold, compared to roasting or ultrasound treatment (UT) alone. Principal component analysis revealed that the UAET method might be more suitable for extracting BS oil with higher TQ content than roasting and UT. CONCLUSION: Compared to roasting or UT, using ultrasound along with cellulase could improve the oil yield and TQ in the oil from BS and obtain the DBSM with higher phenolics, flavonoids, and antioxidant activity. © 2023 Society of Chemical Industry. [ABSTRACT FROM AUTHOR]

Published
2023
Full Text
View/download PDF

36. γ‐Aminobutyric acid and oxalic acid contents and angiotensin‐converting enzyme inhibitory activity of spinach juices cofermented with Levilactobacillus brevisGABA100 and other lactic acid bacteria.

Author

Kim, Moon Joo, Lim, Taehwan, Kim, Jaecheol, Ji, Geun Eog, Lee, Haeseong, Lee, Kiuk, Kim, Ryun Hee, and Hwang, Keum Taek

Subjects
*LACTIC acid bacteria, *ANGIOTENSIN converting enzyme, *OXALIC acid, *LACTOBACILLUS acidophilus, *SPINACH
Abstract

Summary: This study aimed to develop fermented spinach juice with enhanced γ‐aminobutyric acid (GABA) level and angiotensin‐converting enzyme (ACE) inhibitory activity and reduced oxalic acid level. We cofermented spinach juice with Levilactobacillus brevis GABA100 and oxalic acid‐degrading bacteria (Lactobacillus gasseri HHuMin D, Lactobacillus sakei RH1114, Lactobacillus acidophilus 19L5, or Limosilactobacillus fermentum BH03). GABA levels were not different among all the fermented juices except for the juice cofermented with L. brevis GABA100 and L. fermentum BH03. Oxalic acid decreased in the cofermented juices. The most increase in ACE inhibitory activity was observed in the juice cofermented with L. brevis GABA100 and L. sakei RH1114. Peptides (IVVGPPPP, PQTETKASVGFKAG and QIIGPVLD) produced during the cofermentation showed a positive correlation with the ACE inhibitory activity of the juice. These results suggest that spinach juice cofermented with L. brevis GABA100 and L. sakei RH1114 may have potential applications for the management of hypertension. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

44. Adaptive deblocking method using a transform table of different dimension DCT

Author

Lim, Taehwan, Ryu, Jiman, Kim, Jongho, and Jeong, Jechang

Subjects
Algorithms -- Analysis, Data compression -- Analysis, Adaptive sampling -- Analysis, Algorithm, Business, Electronics and electrical industries, Engineering and manufacturing industries
Abstract

A Blocking Artifact is one of major drawbacks of a block-based compression image. This appears at the block boundaries as visible discontinuities because of rough quantization. In this paper, we propose an adaptive deblocking algorithm that reduces block discontinuities in DCT domain. Our algorithm applies a deblocking procedure to each line of adjacent 3 blocks, so the block is divided into several line vectors. There are three Low Pass filters that are applied differently to 1 x 24 DCT values according to each condition of adjacent 3 vectors for conserving image details, and we use a transform table of different dimension DCTs (1 x 8 and 1 x 24 DCT) for reducing a computational cost. The experimental results show that the proposed method performs distinguished effects on an improvement of subjective image quality and a computational efficiency. Index Terms--Blocking artifacts, adaptive post-processing, DCT domain, transform table.

Published
2008

Catalog

Books, media, physical & digital resources
See catalog results