Publications by authors named "Hyun-Jung Yun"

Species of genus are known to be rich sources of bioactive compounds. However, there is a lack of studies comparing extraction methods for these bioactive components. This study aimed to compare the total phenolic contents, total antioxidant capacity, tyrosinase inhibitory effect, sargahydroquinoic acid (SHQA) and sargachromenol (SCM), two algal meroterpenoids, of extracts acquired by different extraction methods.

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Gastrointestinal disorders are widespread globally, with inflammatory diseases being particularly prominent. This study aimed to investigate the effect of hot water extract (KCH) on lipopolysaccharide (LPS)-induced inflammation in human intestinal epithelial (Caco-2) cells and loperamide-induced constipation in BALB/c mice. The study's findings revealed that KCH dose-dependently increased the cell viability and reduced the NO production by decreasing the iNOS and COX-2 expression in LPS-stimulated Caco-2 cells.

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3D printing technology enables the production of creative and personalized food products that meet consumer needs, such as an attractive visual appearance, fortification of specific nutrients, and modified textures. To popularize and diversify 3D-printed foods, an evaluation of the printing feasibility of various food pastes, including materials that cannot be printed natively, is necessary. Most animal resources, such as meat, milk, and eggs, are not inherently printable; therefore, the rheological properties governing printability should be improved through pre-/post-processing or adding appropriate additives.

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The anti-inflammatory effect of the ethanol extract of and its fractions were investigated in this study. The ethanol extract exhibited a strong anti-inflammatory effect on lipopolysaccharide-stimulated RAW 264.7 macrophages and effectively suppressed the M1 polarization of murine bone-marrow-derived macrophages stimulated by lipopolysaccharides and IFN-γ (interferon-gamma).

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Notably for seniors, 3D food printing is an appropriate processing method for creating customized meals that meet their unique nutritional requirements and textural preferences. This study attempted to develop an ink for food 3D printers containing abalone powder and several nutrition properties that meet the criteria for senior-friendly foods. The texture of the products was adjusted using gelatin.

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Article Synopsis
  • The study explored using grafted myofibrillar protein as a healthier substitute for phosphate in treated pork loin brine, comparing it with different brine solutions.
  • Results showed that high concentrations of grafted protein (GMP-H) improved thermal stability and protein solubility, leading to better moisture retention and less shear force, which is favorable for meat texture.
  • Grafted myofibrillar protein at low concentrations (GMP-L) emerged as a potential phosphate alternative, enhancing meat quality while reducing lipid oxidation in the pork loin.
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Due to concerns about the negative effects of phosphate on human health, the development of phosphate substitutes is an active area of research. Among the various methods, the structural modification of proteins has previously been established. In this study, we used grafting technology.

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Article Synopsis
  • Unlabelled brown seaweed has a long history of use as food and medicine in Korea, China, and Japan.
  • This seaweed contains bioactive substances that are linked to health benefits, such as anti-inflammatory and antioxidant properties.
  • The article reviews the health benefits, mechanisms, and bioactive compounds of 30 species of this seaweed found along the Korean coast.
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Purpose: This study's objective was to investigate the effects of programs that improve adolescents' body image, using a systematic review and meta-analysis.

Methods: A literature search was performed in eleven electronic databases, using preferred reporting items for systematic reviews and meta-analysis guidelines. Population characteristics, contents of the programs, and measured outcomes were systematically reviewed from 21 selected studies.

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Purpose: This study aimed to explore parents' perceptions of self-management behaviors for their children with spina bifida (SB).

Design: Qualitative method.

Methods: In-depth interviews were conducted with nine Korean parents of children with SB.

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Objectives: The present study addressed the risk factors in early life for Korean preschool children that are associated with being overweight or obese.

Methods: A descriptive cross-sectional design was used to conduct this study, which included 507 mothers with preschool children aged 3-5 years, who attended daycare centers. Data were acquired via a self-administered questionnaire completed by the mothers.

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Purpose: The aim of this study was to identify factors associated with self-management behaviors in children with spina bifida (SB). The Individual and Family Self-Management Theory was used as a framework.

Methods: This was a cross-sectional survey study of 112 elementary school children (7-12 years old) with SB who regularly attended scheduled follow-up appointments at the SB clinic of a children's hospital in Seoul, Korea, and their parents.

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Article Synopsis
  • The study explores how preschool children's weight perceptions are affected by their teachers, mothers, and their own views.
  • The research involved 388 triads of Korean children aged 3-6, focusing on various factors like BMI and body image.
  • Findings reveal that teachers significantly impact children's weight misperceptions, highlighting the need for teacher training to foster accurate weight perceptions and healthy body images.
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The purpose of the study was to identify the economic differences in familial, physiological, psychological, and lifestyle characteristics associated with overweight and obese children in South Korea. A total of 407 overweight and obese children participated in the study. The obesity rate was 69.

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