A5091497212- Phytochemicals and Antioxidant Activities
- Fungal Biology and Applications
- Phytochemistry and Biological Activities
- Natural Antidiabetic Agents Studies
- Natural product bioactivities and synthesis
- Insect Utilization and Effects
- Pharmacological Effects of Natural Compounds
- Medicinal plant effects and applications
- Phytochemistry and Bioactivity Studies
- Food Quality and Safety Studies
- Phytochemistry and biological activities of Ficus species
- Bioactive natural compounds
- melanin and skin pigmentation
- Toxin Mechanisms and Immunotoxins
- Plant tissue culture and regeneration
- Phytochemical compounds biological activities
- Genomics, phytochemicals, and oxidative stress
- Silymarin and Mushroom Poisoning
- Hibiscus Plant Research Studies
- Biochemical Analysis and Sensing Techniques
- Ginseng Biological Effects and Applications
- Medicinal Plants and Bioactive Compounds
- Chromatography in Natural Products
- Plant-derived Lignans Synthesis and Bioactivity
- Graphene and Nanomaterials Applications
Chungbuk National University
2017-2025
Eriobotrya japonica (Thunb.) Lindl., commonly known as loquat, is a plant belonging to the Rosaceae family. While its fruit widely consumed food and used in traditional medicine, research on other parts of remains insufficient. Therefore, chemical constituents biological activities leaves were investigated. Phytochemical analysis E. identified 30 compounds, including flavonoids, phenolics, megastigmanes. The flavonoids isolated from include flavones, flavans, flavolignans, flavonoid...
Phytochemical investigation of the roots Adenophora triphylla yielded a new phenylpropanoid, adenophoride (1) and polyacetylene, adenylene (7) along with four phenylpropanoids polyacetylene. The structures were determined by spectroscopic analysis including NMR, MS, UV IR. Among isolated compounds, compound showed mild α-glucosidase inhibitory activities.
ABSTRACT Actinidia arguta (Siebold & Zucc.) Planch. ex Miq. is one of the major species genus and has distinct characteristics such as small size smooth-fruited. The fruits A. are rich in essential nutrients bioactive compounds. Due to their tolerance low temperatures, they can be cultivated Asia several varieties have been developed for better efficacy. Investigation through extensive chromatographic techniques yielded 22 flavonoid derivatives including new compound. compound,...
Actinidia arguta, commonly called hardy kiwifruit or kiwiberry, has cold-resistant properties and can be cultivated in Asia, including Korea. Seven new triterpenoids (2–4 8–11) along with eight known were isolated from the leaves of A. arguta through various chromatographic techniques. The defined as actiniargupenes A–C (2–4), actinidic acid derivatives phenylpropanoid constituent units, dehydroisoactinidic (8), D–F (9–11), asiatic substituents, on basis 1D 2D NMR MS data. Among...
Cordycepin is the major constituent of Cordyceps mushroom (or militaris) with therapeutic potential. Insects are direct sources nutrients for in nature. Therefore, optimized condition cultivation efficient cordycepin production was explored using six edible insects as substrates. The highest yield produced by on Allomyrina dichotoma and 34 times that Bombyx mori pupae. Among insect components, fat content found to be important production. Especially, a positive correlation deduced between...
Cordycepin, also known as 3′-deoxyadenosine, is a major active ingredient of Cordyceps militaris with diverse pharmacological effects. Due to its limited supply, many attempts have been conducted enhance the cordycepin content. As part this study, eight medicinal plants were supplemented cultivation substrates increase cultivated on brown rice Mori Folium, Curcumae Rhizoma, Saururi Herba, and Angelicae Gigantis Radix exhibited increased content compared control. Among them, addition 25%...
Cratoxylum formosum ssp. pruniflorum (Kurz.) Gogel (Guttiferae), called kuding tea, is widely distributed in Southeast Asia. In this study, the constituents and biological activity of C. were investigated. Extract its leaves, roots stems showed antioxidant α-glucosidase inhibitory activity. Interestingly, comparison metabolite profiles by LC-MS analysis a great difference between whereas quite similar. Purification leaves through various chromatographic techniques resulted isolation 25...
As the leaf of Actinidia arguta has shown antioxidant activity, a study was conducted to identify active ingredients. Forty-eight compounds were isolated from leaves A. through various chromatographic techniques. Further characterization structures on basis 1D and 2D NMR MS data identified several aromatic compounds, including phenylpropanoid derivatives, phenolics, coumarins, flavonoids lignans. Among them, five newly reported, naturally occurring, named argutosides A–D (1–4), which consist...
Zaluzanin C (ZC), a sesquiterpene lactone isolated from Laurus nobilis L., has been reported to have anti-inflammatory and antioxidant effects. However, the mechanistic role of ZC in its protective effects Kupffer cells hepatocytes not elucidated. The purpose this study was elucidate efficacy mechanism action hepatocytes. inhibited LPS-induced mitochondrial ROS (mtROS) production subsequent mtROS-mediated NF-κB activity (KCs). reduced mRNA levels pro-inflammatory cytokines (Il1b Tnfa)...
Wild ginseng (Panax ginseng) adventitious root cultures were prepared by elicitation using methyl jasmonate and investigated further to find new secondary metabolites. Chromatographic fractionation of wild led the isolation eleven compounds. The chemical structures isolated compounds identified as four known flavanone derivatives (1-4), one curcubinoyl derivative, jasmogin A (5) six curcubinoyl-flavanone conjugates, jasmoflagins A-F (6-11) extensive spectroscopic analysis. Newly showed...