1.Quantitative Analysis and Validation of Hirsutenone and Muricarpone B from Fermented Alnus sibirica.
Jun YIN ; Ki Hoon YOON ; Seong Hye YOON ; Hye Shin AHN ; Min Won LEE
Natural Product Sciences 2017;23(2):146-150
Alnus sibirica (AS) geographically distributes in Korea, Japan, Northeast China and Russia. The bark of this plant had been used for antipyretic, expectorant, anti-phlogistic, antitussive, anti-asthmatic and as a health tea for alcoholism. Recently, we studied various biological activities of AS and the isolated diarylheptanoid. In present study, we conducted fermentation of AS (FAS) and isolated two diarylheptanoid (hirsutenone and muricarpone B). Moreover, we established the validation and contents determinations of the two compounds by HPLC on FAS.
Alcoholism
;
Alnus*
;
China
;
Chromatography, High Pressure Liquid
;
Fermentation
;
Japan
;
Korea
;
Plants
;
Russia
;
Tea
2.Flavonoid Compounds from the Leaves of Kalanchoe prolifera and Their Cytotoxic Activity against P-388 Murine Leukimia Cells.
Lilis Siti AISYAH ; Yenny Febriani YUN ; Tati HERLINA ; Euis JULAEHA ; Achmad ZAINUDDIN ; Ida NURFARIDA ; Ace Tatang HIDAYAT ; Unang SUPRATMAN ; Yoshihito SHIONO
Natural Product Sciences 2017;23(2):139-145
Seven flavonoid compounds, kaempferol (1), quercetin (2), quercetin-3-O-β-D-glucopyranoside (3), kaempferol-3-O-β-D-glucopyranoside (4), kaempferol-3-O-α-L-rhamnoside (5), quercetin-3-O-sophoroside (6) and quercetin-3-O-rutinoside (7), were isolated from the methanolic extract of leaves of Kalanchoe prolifera. Compounds 1-7 were isolated for first time from this plant. These compounds were evaluated their cytotoxic activity against P-388 murine leukimia cells in vitro. Among those compounds kaempferol (1) and quercetin (2) showed strongest cytotoxic activity with IC₅₀ values of 4.45 ± 0.05 and 6.28 ± 0.02 µg/mL, respectively.
Crassulaceae
;
Flavonoids
;
In Vitro Techniques
;
Kalanchoe*
;
Methanol
;
Plants
;
Quercetin
3.Anthocyanins from Clitoria ternatea Attenuate Food-Borne Penicillium expansum and its Potential Application as Food Biopreservative.
Chean Ring LEONG ; Muhammad Afif KAMARUL AZIZI ; Md Abu TAHER ; Suzana WAHIDIN ; Kok Chang LEE ; Wen Nee TAN ; Woei Yenn TONG
Natural Product Sciences 2017;23(2):125-131
Clitoria ternatea or Commonly known blue pea, is a perennial climber crop native to Asian countries. The current study was aimed to evaluate the antimicrobial activity C. ternatea extract on food borne microorganisms and its antifungal effect on Penicillium expansum. The extract showed significant antimicrobial activity against 3 Gram positive bacteria, 2 Gram negative bacteria and 1 filamentous fungus on disc diffusion assay. The extract also showed good biocidal effect on all Gram positive bacteria tested and P. expansum. However, the kill curve analysis revealed that the fungicidal activity of the extract against P. expansum conidia was depend on the concentration of the extract and the time of exposure of the conidia to the extract. The scanning electron micrograph of the extract treated P. expansum culture showed alterations in the morphology of fungal hyphae. The germination of P. expansum conidia was completely inhibited and conidial development was totally suppressed by the extract, suggesting the possible mode of action of anthocyanin. Besides, the extract also exhibited 5.0-log suppression of microbial growth relative to control in the rice model. The results indicate the potential use of the C. ternatea anthocyanin as food biopreservative.
Anthocyanins*
;
Asian Continental Ancestry Group
;
Clitoria*
;
Diffusion
;
Fungi
;
Germination
;
Gram-Negative Bacteria
;
Gram-Positive Bacteria
;
Humans
;
Hyphae
;
Peas
;
Penicillium*
;
Spores, Fungal
4.Neolignan Derivatives from the Flower of Magnolia biondii Pamp. and their Effects on IL-2 expression in T-cells.
Thi Tuyet Mai NGUYEN ; Thi Thu NGUYEN ; Hyun Su LEE ; Chang Duk JUN ; Byung Sun MIN ; Jeong Ah KIM
Natural Product Sciences 2017;23(2):119-124
The isolation of the MeOH extract from the flower bud of Magnolia biondii Pamp. using various column chromatographies and HPLC led to eleven neoglignan derivatives (1 - 11). Their structures were mainly determined by 1D and 2D NMR spectral data analysis and physiological methods. The isolated compounds (1 - 11) were tested for anti-allergic effects using IL-2 inhibitory assay in Jurkat T cells.
Chromatography
;
Chromatography, High Pressure Liquid
;
Flowers*
;
Interleukin-2*
;
Magnolia*
;
Magnoliaceae
;
Statistics as Topic
;
T-Lymphocytes*
5.Integracide K: A New Tetracyclic Triterpenoid from Desmodium uncinatum (Jacq.) DC. (Fabaceae).
Borice Tapondjou TSAFACK ; Beaudelaire Kemvoufo PONOU ; Rémy Bertrand TEPONNO ; Raymond Ngansop NONO ; Kristina JENETT-SIEMS ; Matthias F MELZIG ; Hee Juhn PARK ; Léon Azefack TAPONDJOU
Natural Product Sciences 2017;23(2):113-118
A new tetracyclic triterpenoid [4,4,24-trimethylcholesta-Δ(8,9;14,15;24,28)-trien-3β,11β,12α-triol-12-acetate, 3-sulfate] sodium salt (1), together with eight known compounds including ergosterol 5α,8α-endoperoxide (2), 1,9-dihydroxy-3-methoxy-2-methylpterocarpan (3), 3-O-β-D-2-acetyl-amino-2-deoxyglucopyranoxyloleanoic acid (4), hydnocarpin (5), derrone (6), isovitexin (7), erythrinin C (8), and 5,4'-dihydroxy-2''-hydroxyisopropyldihydrofurano [4,5:7,8]-isoflavone (9), were isolated from the EtOAc soluble fraction of the methanol extract of aerial part of Desmodium uncinatum collected in the western highland of Cameroon. The structures of these compounds were established by comprehensive interpretation of their spectral data mainly including 1D- (¹H and ¹³C), 2D-NMR (¹H-¹H COSY, HMQC, HMBC) spectroscopic and ESI-TOF-MS mass spectrometric analysis. The isolation of an integracide-like compound from plant origin is a very unusual finding.
Cameroon
;
Ergosterol
;
Fabaceae
;
Methanol
;
Plants
;
Sodium
6.Anti-inflammatory, Anti-arthritic and Analgesic Effect of the Herbal Extract Made from Bacopa monnieriis, Cassia fistula and Phyllanthus polyphyllus.
Natural Product Sciences 2017;23(2):108-112
Anti-inflammatory, anti-arthritic and analgesic activity of each herbal extract, which is extracted from Bacopa monnieriis, Cassia fistula and Phyllanthus polyphyllus, respectively. The treatment of herbal extract exhibited anti-inflammatory effect as a dose-dependent manner, from 1.25mg/kg to 12.5mg/kg, in acute inflammatory models (carrageen and egg-albumin induced rat hind paw edema). It also elicited significant anti-inflammatory activity in chronic inflammatory models (cotton pellet granuloma and Freund's adjuvant induced polyarthritis in rat). In cotton pellet granuloma test, the extract exhibited the inhibitory effect of 23 and 57% at the dose of 6.25 and 12.5 mg/kg, respectively. In Freund's adjuvant induced model, the treatment of the extract of 1.25, 6.25 and 12.5 mg/kg showed the inhibitory effect of 23, 56 and 66% at 8 days, respectively. In the acetic acid-induced model, the extract significantly reduced abdominal writhing in mice when compared to the control group, reducing the mean number of writhing from 41 ± 2 in the control group to 17 ± 3 and 15 ± 2 at the dose of 6.25 and 12.5 mg/kg. From these experiments, the extract, which was extracted from the combination of Bacopa monnieriis, Cassia fistula and Phyllanthus polyphyllus, (w/w/w = 1/2/1) is surprisingly found a significant analgesic and anti-inflammatory activity.
Animals
;
Arthritis
;
Bacopa*
;
Cassia*
;
Freund's Adjuvant
;
Granuloma
;
Mice
;
Phyllanthus*
;
Rats
7.Falcarindiol from Angelica koreana Down-regulated IL-8 and Up-regulated IL-10 in Colon Epithelial Cells.
Sun Yup SHIM ; Seul gi LEE ; Mihye KIM ; Jin Woo LEE ; Bang Yeon HWANG ; Mina LEE
Natural Product Sciences 2017;23(2):103-107
Angelica koreana is an important medicinal plant for some locals in East Asia including Korea. A few reports have shown the efficacy of its phytochemical constituents. We have isolated and purified one compound falcarindiol (FAL) from the methanolic extract of A. koreana roots. At concentrations from to 1 µM to 25 µM, the FAL isolated from the roots of A. koreana exerted no significant cytotoxicity and down-regulated LPS-stimulated pro-inflammatory cytokine IL-8 in colon epithelial cells, while up-regulating anti-inflammatory cytokine IL-10. In addition, the FAL decreased the expression of LPS-induced inducible nitric oxide synthase (iNOS) and cyclooxygenase (COX)-2 protein by Western blot analysis. Colon epithelial cells play pivotal roles in regulating the colon immune system and thus FAL is expected to be candidate agent as therapeutic potential for the treatment of inflammatory bowel disease (IBD) by modulating LPS-induced inflammation in colon epithelial cells.
Angelica*
;
Blotting, Western
;
Colon*
;
Epithelial Cells*
;
Far East
;
Immune System
;
Inflammation
;
Inflammatory Bowel Diseases
;
Interleukin-10*
;
Interleukin-8*
;
Korea
;
Methanol
;
Nitric Oxide Synthase Type II
;
Plants, Medicinal
;
Prostaglandin-Endoperoxide Synthases
8.Acetylcholinesterase Inhibitors from Angelica polymorpha Stem.
Yongsoo KWON ; Hyun Pyo KIM ; Myong Jo KIM ; Wanjoo CHUN
Natural Product Sciences 2017;23(2):97-102
Fourteen compounds were isolated from the stem of Angelica polymorpha. On the basis of spectral data, these compounds were identified as isoimperatorin (1), phellopterin (2), bergapten (3), xanthyletin (4), cnidilin (5), geijerine (6), (−)-3'-acetyl hamaudol (7), 7-demethylsuberosine (8), dehydrogeijerin (9), (−)-hamaudol (10), (+)-visamminol (11), divaricatol (12), scopoletin (13), and decursidate (14), respectively. Among them, compounds 4 - 6, 8, 9, 13, and 14 were isolated for the first time from A. polymorpha. Dehydrogeijerin (6) and geijerin (9) were isolated for the first time from genus Angelica. All isolates tested for inhibitory activity against acetylcholinesterae. Compounds 1 to 13 showed acetylcholinesterase inhibitory activity with IC₅₀ values ranging from 1.4 to 37.5 µM.
Acetylcholinesterase*
;
Angelica*
;
Cholinesterase Inhibitors*
;
Chromones
;
Coumarins
;
Scopoletin
9.Comparative Effects of Dietary Quercetin and Rutin in Rats Fed with the Lieber-DeCarli Ethanol Diet.
Su Jeong SEO ; Cheol Ho PARK ; In Young KO ; Yeon Ho JEONG ; Yong Soon CHOI
Natural Product Sciences 2017;23(3):222-226
Flavonoids including quercetin and rutin are a group of naturally occurring compounds widely distributed in plants, especially in buckwheat. Thus, cereal and the leaf of the plant have increasingly used as a source of nutritional and functional foods such as noodle, cake or soup in Korea, Japan and other countries. This study investigated comparative effects of dietary rutin rich in buckwheat and its aglycone, quercetin, on serum biomarkers and antioxidant parameters in rats treated with chronic ethanol. Rats were fed with the liquid diets prepared by the method of Lieber Decarli. Serum alanine transaminase (ALT) and aspartate transaminase (AST) activities increased significantly by alcohol feeding. Dietary flavonoids including rutin, quercetin and their mixtures (1/1, v/v) decreased significantly the activities of serum ALT whereas the feeding of quercetin decreased only the activity of serum AST. The concentration of serum malondialdehydes elevated by chronic alcohol feeding decreased markedly in all the experimental groups that were fed with the flavonoids; however, the combined administration of quercetin or rutin, but not that of rutin or quercetin alone decreased significantly the concentration of liver malondialdehydes to the normal range in rats fed without ethanol. Our results suggested that dietary combined mixture of rutin and quercetin might be effective in ameliorating adverse responses seen in rats exposed to ethanol chronically.
Alanine Transaminase
;
Animals
;
Aspartate Aminotransferases
;
Biomarkers
;
Diet*
;
Edible Grain
;
Ethanol*
;
Fagopyrum
;
Flavonoids
;
Functional Food
;
Japan
;
Korea
;
Liver
;
Methods
;
Plants
;
Quercetin*
;
Rats*
;
Reference Values
;
Rutin*
10.Phytochemical Constituents from the Rhizomes of Osmunda japonica Thunb and Their Anti-oxidant Activity.
Kyeong Wan WOO ; Ja Kyun JUNG ; Hyun Joo LEE ; Tae Muk KIM ; Min Suk KIM ; Ho Kyung JUNG ; Byeongkwan AN ; Seong Ho HAM ; Byung Hun JEON ; Hyun Woo CHO
Natural Product Sciences 2017;23(3):217-221
Eleven compounds (1–11) were isolated from the rhizomes of Osmunda japonica, and their structures were elucidated based on 1H, 13C-NMR and LC-IT-TOF MS data. Of these compounds, all compounds (1 – 11) have been previously reported, although five (6 – 9, 11) have not previously been isolated from this plant. The antioxidant activities of isolated compounds (1 – 11) were measured by DPPH and ABTS assays, and compound 10 showed the high antioxidant activity.
Plants
;
Rhizome*