Publications by authors named "Seung Yun Lee"

Edible insects have emerged as promising sources of bioactive materials with potential applications across various sectors, including the food, feed, pharmaceutical, and cosmetics industries. This review evaluates the potential of edible insects as eco-friendly and nutritionally superior materials by analyzing their key nutritional components. Focusing on drying methods, this study examines the advantages and disadvantages of different processing techniques to enhance usability and leverage their potential value.

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Fetal bovine serum (FBS) is a critical media component in cell culture, but it is also expensive and highly controversial from an animal welfare level, being of fetal blood origin. Therefore, our study aimed to develop FBS substitutes from slaughterhouse waste blood. We pooled the blood from slaughterhouse by-products (BSBPs) of three major livestock species (cattle, pigs, and chickens) and performed nutritional and hematological analyses of serum, plasma, whole blood, and cruor.

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Background/objectives: Brain metastasis (BM) is a common and often early manifestation in lung adenocarcinoma (LUAD), yet its tumor microenvironment remains poorly defined at the time of initial diagnosis. This study aims to characterize early immune microenvironmental alterations in synchronous BM using spatial proteomic profiling.

Methods: We performed digital spatial proteomic profiling using the NanoString GeoMx platform on formalin-fixed paraffin-embedded tissues from five treatment-naïve LUAD patients in whom BM was the initial presenting lesion.

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Understanding the performance of carbon fiber reinforced polymer under elevated temperatures is essential to expanding its application in construction, particularly in fire-prone environments. This study investigates the mechanical behavior of carbon fiber reinforced polymer rebars fabricated through the pultrusion process, which offers superior thermal stability and uniform resin distribution. Tests were conducted to evaluate the tensile strength, elastic modulus, and shear strength of carbon fiber reinforced polymer rebars at temperatures ranging from 25 to 550 °C, exceeding the material's decomposition temperature.

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The emergence of several paramyxoviruses, including Nipah virus (NiV), makes continued efforts in vaccine development as part of pandemic preparedness efforts necessary. Although NiV is a zoonotic pathogen with high case fatality, there is still no licensed vaccine. Herein, NiV attachment glycoprotein G (NiV-G), which is crucial to host cell receptor binding, was used to develop Nipah epitope-based peptide vaccines.

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Purpose: To evaluate the feasibility and utility of deep learning-based computer-aided diagnosis (DL-CAD) for the detection of pulmonary nodules on coronary artery calcium (CAC)-scoring computed tomography (CT).

Materials And Methods: This retrospective study included 273 patients (aged 63.9±13.

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This study was conducted to investigate the recent research trends of alternative protein foods being developed to replace traditional livestock foods and thus determine the current state of the technology and the potential for industrialization. The results of this study showed that the technology related to cultured meat has not yet reached industrialization. However, serum-free media development, technologies to improve culture efficiency, and technologies to improve taste and flavor are being researched.

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The absence of carbon fiber-reinforced rebar performance standards in Korea has limited its reliability. This study investigates the durability performance of carbon fiber-reinforced polymer rebar as an alternative to traditional steel reinforcement in concrete structures. Concrete beams reinforced with carbon fiber-reinforced polymer rebar were exposed to chloride environments for durations of 35 and 70 days and then subjected to bending tests to evaluate their durability.

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This study investigated the effects of fermented food consumption on the risk of colorectal cancer (CRC) related to processed meat intake using a mouse model. Processed meat products and fermented foods were supplemented to analyze heterocyclic amines (HCA) and carcinoembryonic antigen (CEA) levels and the gut microbiota in mice. The study determined age to be a non-influential factor.

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This study aimed to evaluate the influence of combination treatment with a natural colorant (Gardenia red) and additives (sodium caseinate and maltodextrin) on the physicochemical properties of emulsified pork sausages at 0 and 4 weeks. The experimental design included a control (sodium nitrite 0.01%) and 5 treatments: T1 (Gardenia red 0.

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This study aimed to compare the changes in the bioactivities of peptide extracts (< 10 kDa) obtained from Jeju black pigs (JBP) and three-way crossbred pigs (Landrace × Yorkshire × Duroc, LYD) before and after digestion. The results showed that the loin peptide extracts of JBP maintained high 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging activity after digestion. However, the iron chelating activity and antihypertensive activity of all peptide extracts were decreased.

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Article Synopsis
  • Fetal bovine serum (FBS) is expensive and raises animal welfare concerns since it's harvested from pregnant cows during slaughter.
  • This study developed an alternative FBS substitute using blood from slaughterhouse waste, which proved to be effective for cell culture.
  • The substitute not only enhanced muscle growth in lab experiments but could also reduce costs by around 61%, making it a promising option for cultured meat production and other biotechnological applications.
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Article Synopsis
  • The study reviews the current status of meat alternatives, focusing on plant-based and cell-based options, while addressing their classification as ultra-processed foods (UPFs) that might have negative health effects due to extensive processing.
  • It highlights the potential of meat alternatives in tackling environmental, ethical, and health issues related to traditional meat consumption, despite concerns about their processing.
  • The paper suggests re-evaluating the UPF classification, creating consistent nutritional standards for meat alternatives, and promoting their health benefits to support their acceptance and growth in the market.
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Nipah virus (NiV), of the Paramyxoviridae family, causes highly fatal infections in humans and is associated with severe neurological and respiratory diseases. Currently, no commercial vaccine is available for human use. Here, eight structure-based mammalian-expressed recombinant proteins harboring the NiV surface proteins, fusion glycoprotein (F), and the major attachment glycoprotein (G) were produced.

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This study aimed to investigate effects of chicken age on proliferation and differentiation capacity of muscle satellite cells (MSCs) and to determine total amino acid contents of cultured meat (CM) produced. Chicken MSCs (cMSCs) were isolated from hindlimb muscles of broiler chickens at 5-week-old (5W) and 19-embryonic-day (19ED), respectively. Proliferation abilities (population doubling time and cell counting kit 8) of cMSCs from 19ED were significantly higher than those from 5W (p<0.

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Live coccidiosis vaccines have mainly been used to reduce species infection, which is considered the most economically important disease in the poultry industry. Evaluation data on vaccine effectiveness through large-scale field experiments are lacking, especially in broilers. Thus, the effectiveness of a commercial coccidiosis vaccine was evaluated in approximately 900,000 chicks reared on three open-broiler farms where coccidiosis is prevalent.

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This study was conducted to compare and analyze the changes in the biochemical characteristics and biological activity of peptide extracts derived from Chickso, Hanwoo, and Wagyu beef during digestion. The results of the digestion analysis revealed that the digestion rate, total free amino acid content, and antioxidant and antihypertensive activities of Chickso loin and shank myofibrillar proteins were significantly higher (p<0.05) than those of Hanwoo and Wagyu loin and shank myofibrillar proteins.

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Peptides with bioactive effects are being researched for various purposes. However, there is a lack of overall research on pork-derived peptides. In this study, we reviewed the process of obtaining bioactive peptides, available analytical methods, and the study of bioactive peptides derived from pork.

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Cultured meat is expected to become an important material for future food production; however, contrary to initial expectations, the full-scale industrialization of cultured meat is slow and the actual level and opened technology amount is very limited. This study reviews the publicly available technologies of cultured meat and suggests future developmental directions and research agenda. As a result of analyzing papers, patents, and press releases published over the past 10 years, it was found that cultured meat production technology is still at the prototype production level.

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The spread of antibiotic-resistant in the poultry industry poses significant public health challenges due to multidrug resistance and biofilm formation. We investigated the antibiotic resistance profiles and biofilm characteristics of and isolates from chicken meat in poultry slaughterhouses in South Korea. Ninety-six isolates (forty-eight each of and ) were collected between March and September 2022.

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Interest and investment in cultivated meat are increasing because of the realization that it can effectively supply sufficient food resources and reduce the use of livestock. Nevertheless, accurate information on the specific technologies used for cultivated meat production and the characteristics of cultivated meat is lacking. Authorization for the use of cultivated meat is already underway in the United States, Singapore, and Israel, and other major countries are also expected to approve cultivated meat as food once the details of the intricate process of producing cultivated meat, which encompasses stages such as cell proliferation, differentiation, maturation, and assembly, is thoroughly established.

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This study aimed to analyze the leading research materials and research trends related to livestock food in Asia in recent years and propose future research agendas to ultimately contribute to the development of related livestock species. On analyzing more than 200 relevant articles, a high frequency of studies on livestock species and products with large breeding scales and vast markets was observed. Asia possesses the largest pig population and most extensive pork market, followed by that of beef, chicken, and milk; moreover, blood and egg markets have also been studied.

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Fetal bovine serum (FBS) substitution remains one of the challenges to the realization of cultured meat production in the marketplace. In this study, three methods were developed to extract a substitute for FBS using egg white extract (EWE): using 25 mM CaCl/2.5 % ammonium sulfate/citric acid (A); ethyl alcohol (B); and 5 % ammonium sulfate/citric acid (C).

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Avian influenza virus (AIV) is a pathogen with zoonotic and pandemic potential. Migratory birds are natural reservoirs of all known subtypes of AIVs, except for H17N10 and H18N11, and they have been implicated in previous highly pathogenic avian influenza outbreaks worldwide. This study identified and characterized the first isolate of the H13N6 subtype from a Vega gull () in South Korea.

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