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JKFN Journal of the Korean Society of Food Science and Nutrition



Online ISSN 2288-5978

Current Issue

  • Article l 2024-03-31

    Anti-Obesity Effect of Aster yomena Extracts through Regulation of AMPK/SIRT1 Signaling

    Hye-Jeong Hwang , Yu Jin Hwang, Hyunseo Go, and Kyung-A Hwang

    In this study, the anti-obesity effect of a 50% ethanol extract from Aster yomena (AY), a natural material with various physiological activities, including anti-inflammatory and anti-allergic effects, was investigated in C3H/10T1/2 cells. The AY extract (10, 200, or 500 μg/mL) suppressed both the accumulation of lipid droplets, as stained with Oil Red O, and the production of intracellular triglycerides. The extract also suppressed factors related to adipogenesis (CCAAT/enhancer-binding protein alpha, beta, and peroxisome proliferator-activated receptor gamma; PPARγ) and lipogenesis (sterol-regulatory element binding protein-1c, fatty acid synthase, and fatty acid binding protein 4), but it enhanced the expressions of β-oxidation-related mRNA and proteins (AMP-activated protein kinase, acetyl-CoA carboxylase, PPARγ coactivator-1 alpha, and carnitine palmitoyltransferase-1 alpha). In addition, the extract dose-dependently regulated leptin and adiponectin levels. These results suggest the anti-obesity effect of the AY extract is caused by its targeting the above-mentioned adipogenic and β-oxidation factors and that it has potential use for treating obesity.Key words : Aster yomena, anti-obesity, AMPK/SIRT1, adipogenesis, β-oxidation

  • Ginsenoside Re is a panaxatriol saponin and exhibits various pharmacological activities, which include anti-inflammatory, anticancer, antioxidant, and anti-diabetic effects. In this study, we examined the anticancer effects of ginsenoside Re on MCF-7 breast cancer cells. Cell proliferation was measured with the cell counting kit-8 assay, cell migration through a wound healing assay, and epithelial-mesenchymal transition (EMT) related gene expression via RT-PCR and gelatin zymography. Ginsenoside Re dose-dependently suppressed breast cancer cell proliferation and significantly reduced breast cancer cell migration at a concentration that did not affect cell viability. Ginsenoside Re also prevented EMT, as indicated by the upregulation of E-cadherin and downregulation of vimentin, matrix metalloproteinase (MMP)-2, and MMP-9. In conclusion, our data showed that ginsenoside Re significantly inhibits proliferation and migration MCF-7 breast cancer cell by regulating EMT-related genes including focal adhesion kinase, E-cadherin, vimentin, MMP-2, and MMP-9. These findings suggest that ginsenoside Re has potential therapeutic use for the treatment of breast cancer.Key words : ginsenoside Re, breast cancer, proliferation, migration, EMT

  • Article l 2024-03-31

    Immunostimulatory Effect of Crepidiastrum denticulatum (Houtt.) Water Extract on Splenocytes and Balb/c Mice

    Dabin Choi , Kyonyeo Oh , Boyoung Moon , Dool-Ri Oh , Eunjin Choi , Sooho Seo , Moonjong Kim , Jiae Hong , Yonguk Kim , Haeju Ko , Kiman Kim , and Donghyuch Bae

    Crepidiastrum denticulatum (Houtt.) Pak & Kawano (also called Crepidiastrum sonchifolium ginseng) is cultivated as a traditional food in South Korea. This study demonstrates that the water extract of Crepidiastrum denticulatum (CDW) induces immune-stimulating responses in splenocytes. Cell viabilities were determined using a WST-8 assay, and CDW at doses of 0.5, 1, or 5 μg/mL significantly increased splenocyte viability. In addition, CDW increased levels of nitric oxide, and pro-inflammatory cytokines (IL-2, IL-4, IL-10, IFN-γ). These immunostimulatory effects of CDW confirmed that it indirectly participates in the activity of NF-κB by reducing the expression of IκB, and increasing the phosphorylation of MAP kinases (p38, ERK and JNK). Notably, CDW also had an immune-enhancing effect in balb/c mice by activating T lymphocytes, which help activate phagocytic monocytes and macrophages.Key words : immunostimulatory, Crepidiastrum denticulatum, cytokines, lymphocyte

  • Allomyrina dichotoma larvae are a promising alternative protein resources for foods. Although nutrients are abundant in A. dichotoma larvae and exhibit various physiological functions, nothing is known of the immune activities of A. dichotoma larvae extracts at low temperatures (5°C). This study investigated the immune-enhancing activity of A. dichotoma larvae extract (ADL) at low-temperatures in RAW264.7 cells, a reprensentative macrophage cell line. ADL (5°C) was not cytotoxic at 100 or 200 μg/mL and increased interleukin-6, interleukin-1β production at both concentrations. Furthermore, these immunomodulatory effects were mediated by the phosphorylations of MAPKs (p38, JNK, and ERK) and the translocation of NK-ĸB. Consequently, the study shows that ADL at low-temperature can be used as an immunity-enhancing ingredient.Key words : Allomyrina dichotoma larvae, low-temperature extraction, RAW264.7 macrophages, immune activity, MAPKs family

  • Article l 2024-03-31

    Investigating the Potential of Stellaria alsine var. undulata as a Cosmeceutical Ingredient

    Wan-Taek Lim , Chang-Eui Hong , and Su-Yun Lyu

    The potential use of Stellaria alsine var. undulata extracts and its fractions as cosmeceutical ingredients were investigated by studying their antioxidant, anti-aging, anti-inflammatory, and whitening effects. Results demonstrated that Stellaria alsine var. undulata possesses free radical scavenging abilities, enhances the activity of superoxide dismutase, and thus, protects cells from oxidative damage. Furthermore, extracts and fractions inhibited elastase, which degrades collagen and elastin, thus promoting skin elasticity. Additionally, they suppressed tyrosinase activity, reducing melanin production and potentially brightening skin tone. Finally, the extracts and fractions displayed anti-inflammatory properties by downregulating nitric oxide production. In conclusion, our findings suggest that Stellaria alsine var. undulata has promising potential for cosmeceutical applications due to its multifaceted beneficial effects on skin health. However, further research is warranted to elucidate its mode of action, and its efficacy should be substantiated in human clinical trials.Key words : Stellaria alsine var. undulata, antioxidant, anti-aging, anti-inflammatory, whitening

  • Article l 2024-03-31

    Physicochemical Characteristics and Antioxidant Activities of Apple Juices Produced Using Different Manufacturing Processes

    Keup-Rae Kim , Keono Kim , Samuel Park , Seung Hyun Kim , Teawan Kim, Donghui Lee, and Jeehye Sung

    Apple juice has recently attracted attention due to its high polyphenol content and antioxidant capacity. The present study investigated the flavonoid compositions and antioxidant properties of apple juices produced by cold filling (CF), from concentrate (FC), or not from concentrate (NFC). Flavonoid compositions were determined by LC-MS/MS using a triple quadrupole instrument, and antioxidant activities were evaluated using a ferric-reducing power assay and ABTS and DPPH radical scavenging assays. Results showed CF and NFC juices had significantly higher total phenolic and flavonoid contents than FC juice. Flavonoids detected and quantified included procyanidins, (–)-epicatechin, and phlorizin. Procyanidin B2 (0.45±0.03∼2.54±0.23 μg/mL) and (–)-epicatechin (0.70±0.03∼2.44±0.17 μg/mL) levels were significantly higher than those of other flavonoids in CF and NFC juices. In addition, NFC apple juice was the strongest radical scavenger and ferric ion reducer. These results suggest that CF and NFC apple juices be considered safe, effective, and natural products.Key words : apple juice, antioxidant activity, flavonoid, LC-MS/MS

  • This study investigated the variation in the antioxidant activities of roasted chicory roots extracted with different ethanol concentrations (0, 60, 80, and 100%). Before extraction, dried chicory roots were roasted at 200°C for 15 min. The 100% ethanol extract exhibited the highest quantities of total polyphenols and flavonoids, as well as the most pronounced ABTS and DPPH radical-scavenging abilities. In addition, it also had the highest relative antioxidant capacity index (1.60). Pearson’s correlation coefficients revealed significant and positive correlations between the DPPH radical scavenging capacity and the total polyphenol and flavonoid contents. Hierarchical clustering analysis classified eight accessions into three groups based on the roasting conditions and ethanol concentrations. Forty-one compounds, including quinic acid, dimethoxycinnamic caffeoylquinic acid isomer, and trans-4-O-caffeoylquinic acid, were identified in extracts. These results encourage the development of functional foods or novel dietary ingredients containing chicory root.Key words : chicory root, roasting, antioxidant, relative antioxidant capacity index (RACI)

  • Article l 2024-03-31

    Properties of Wet Noodles Made with Various Sea Salt Concentration by Using Domestic Wheat

    Suk-Tae Oh , Hea-Young Kim , and Gyu-Hee Lee

    Wet noodles were manufactured by varying the concentration of domestic sea salt in domestic Geumgang wheat (DGW) to determine the gelatinization properties and noodle-making characteristics. Measurements of the gelatinization characteristics of DGW according to the concentration of sea salt showed that the pasting temperature and peak viscosity increased as the concentration of sea salt increased. The final viscosity and setback values decreased as the concentration increased. The elongation rate of the wet noodles showed a statistically significant difference at a 2% sea salt concentration. In the noodle-making characteristics, the water absorption rate and volume of cooked noodles decreased as the amount of sea salt added increased, but there was no significant difference in turbidity between 2.0% and 3.5% sea salt. In color, the whiteness (L* value) decreased as the concentration of sea salt increased, but the redness (a* value) and yellowness (b* value) showed no significant change. In the rheological properties, when the sea salt concentration was 2.0%, the hardness, elasticity, gumminess, brittleness, extensibility, and gel strength of the noodles were high, but the elasticity and elongation were similar at 2.0% and 3.5% sea salt. In conclusion, when making noodles from domestic Geumgang wheat using sea salt, the addition of sea salt increases the water retention and storage capacity of the noodles, but using more than 3.5% sea salt lowers the elasticity and extensibility of the noodles.Key words : sea salt, wet noodle, physical properties, cooked noodle, paste properties

  • This study was performed to assess the antioxidant activity of rosemary powders (RP) and powders of a 50% ethanol rosemary extract (REP) of particle size of Key words : rosemary powder, pork patty, lipid oxidation, physicochemical properties, antioxidant activity

  • This study analyzed the comparative merits of a selection of frozen mandu (Korean dumplings) as determined by adults in the Jeonbuk area and suggests an ideal type of frozen mandu that would appeal to adults as determined by conjoint analysis. Two hundred forty-one questionnaires were distributed from June to July 2022 to adults who had previously purchased a frozen mandu in a hypermarket or online. The order of importance of frozen mandu attributes was type (39.73%), ingredients (35.16%), purchasing method (13.14%), and shell texture (11.97%). The ideal combination of the selection attributes was purchase online and grilled mandu with meat and a chewy texture. The most preferred frozen mandu for adults showed an incremental 62.7% potential market share by choice simulation versus the frozen mandu being currently sold. Using the attributes utility, the adult frozen mandu market was divided into two clusters. Adults in cluster 1 preferred grilled mandu and online purchase, while those in cluster 2 preferred steamed mandu and store purchase. The results of this study will help establish a database that contributes to the development of various frozen mandu products and the construction of marketing strategies targeting adults.Key words : adult, frozen foods, behavior, marketing

  • Note l 2024-03-31

    Textural and Sensory Properties of Yanggaeng Prepared with the Addition of Tempeh Powder

    Jisu Lee , Amelly , Hyunsoo Jang , Dahyun Kang , and Jung-Heun Ha

    This study investigated the correlation between the texture profile analysis and consumer preferences of Yanggaeng incorporating tempeh powder (TP), a traditional Indonesian ingredient. Various percentages of TP (0%, CON; 2%, TP2; 4%, TP4; 6%, TP6) were incorporated into white bean paste-based Yanggaeng. The textural characteristics of Yanggaeng, including hardness, adhesiveness, resilience, cohesion, springiness, gumminess, and chewiness, were evaluated after the addition of TP. The TP treatment resulted in significant alterations to the texture of Yanggaeng, manifesting in heightened hardness, resilience, cohesion, and gumminess, likely influenced by the elevated protein content. The analysis of consumer preferences revealed that TP6 received the highest ratings for color, scent, bean aroma, and chewiness. To summarize, based on our results, TP6 seems to be the best option for improving both the textural and sensory qualities of Yanggaeng. Furthermore, our results may serve as foundational information for innovation in food production using tempeh.Key words : tempeh, Yanggaeng, texture profile analysis, consumer preferences, sensory attributes

  • This study aimed to evaluate differences in the quality characteristics, tocopherol contents, and antioxidant activities of mealworm oil obtained using different extraction methods, namely, by pressed extraction (TmoP), solvent extraction (TmoH), and supercritical fluid extraction (TmoS). TmoS oil had higher total polyphenol and flavonoid contents and antioxidant activities (DPPH, ABTS radical scavenging and ferric reducing antioxidant power) than the other oil. In addition, TmoS oil had highest γ-tocopherol, α-tocopherol, and δ-tocopherol contents, while TmoP oil had the highest β-tocopherol level. As regards stability parameters, TmoP and TmoS oils had significantly lower acid values, peroxide values, p-anisidine, and total oxidation values than TmoH oil. By measuring the color parameters, the b* value was significantly higher in TmoS than the TmoP and TmoH, and the a and L values were significantly higher in TmoH group. Overall, these results suggest that supercritical fluid extraction produces higher-quality edible oil.Key words : mealworm, insert oil, quality characteristics, tocopherol, antioxidant activity

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March 2024
Vol.53 No.3

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Print ISSN 1226-3311 Online ISSN 2288-5978