List of works - Ki Hyun Kim

(3β,16α)-3,16-Dihydroxypregn-5-en-20-one from the Twigs of Euonymus alatus (Thunb.) Sieb. Exerts Anti-Inflammatory Effects in LPS-Stimulated RAW-264.7 Macrophages

scientific article published on 25 October 2019

7α,15-Dihydroxydehydroabietic acid from Pinus koraiensis inhibits the promotion of angiogenesis through downregulation of VEGF, p-Akt and p-ERK in HUVECs

scientific article published on 9 February 2018

Ent-Peniciherqueinone Suppresses Acetaldehyde-Induced Cytotoxicity and Oxidative Stress by Inducing ALDH and Suppressing MAPK Signaling

scientific article published on 18 December 2020

A community resource for paired genomic and metabolomic data mining

scientific article published in 2021

A new rearranged eudesmane sesquiterpene and bioactive sesquiterpenes from the twigs of Lindera glauca (Sieb. et Zucc.) Blume.

scientific article published on 12 September 2016

Absolute Configuration and Corrected NMR Assignment of 17-Hydroxycyclooctatin, a Fused 5-8-5 Tricyclic Diterpene

scientific article published on 28 January 2020

Anti-Adipogenic Effects of Salicortin from the Twigs of Weeping Willow (Salix pseudolasiogyne) in 3T3-L1 Cells

scientific article published in 2022

Anti-Inflammatory Phenolic Metabolites from the Edible Fungus Phellinus baumii in LPS-Stimulated RAW264.7 Cells.

scientific article

Anti-adipogenic Effect of β-Carboline Alkaloids from Garlic (Allium sativum)

scientific article published on 12 December 2019

Antifungal Phenols from Woodfordia uniflora Collected in Oman

scientific article published on 08 July 2020

Antigastritis effects of Armillariella tabescens (Scop.) Sing. and the identification of its anti-inflammatory metabolites.

scientific article

Antioxidant and Cytotoxic Activities of Kudzu Roots and Soy Molasses against Pediatric Tumors and Phytochemical Analysis of Isoflavones Using HPLC-DAD-ESI-HRMS

scientific article published in 2022

Aviculin Isolated from Lespedeza cuneata Induce Apoptosis in Breast Cancer Cells through Mitochondria-Mediated Caspase Activation Pathway

scientific article published on 08 April 2020

Beauvetetraones A–C, phomaligadione-derived polyketide dimers from the entomopathogenic fungus, Beauveria bassiana

Beneficial Effects of Bioactive Compounds in Mulberry Fruits against Cisplatin-Induced Nephrotoxicity.

scientific article

Beneficial effects of Panax ginseng for the treatment and prevention of neurodegenerative diseases: past findings and future directions.

scientific article published on 15 April 2017

Betulinic Acid Suppresses Ovarian Cancer Cell Proliferation through Induction of Apoptosis

scientific article published on 03 July 2019

Bioactivity evaluations of betulin identified from the bark of Betula platyphylla var. japonica for cancer therapy

scientific article published on 14 August 2018

Bioactivity-based analysis and chemical characterization of cytotoxic compounds from a poisonous mushroom, Amanita spissacea, in human lung cancer cells in vitro

scientific article published on 31 March 2019

Bioactivity-guided isolation and chemical characterization of antiproliferative constituents from morel mushroom (Morchella esculenta) in human lung adenocarcinoma cells

scientific article published on 22 December 2017

Biological Evaluation of a New Lignan from the Roots of Rice (Oryza sativa)

scientific article published on 26 October 2018

C-Methylated Flavonoid Glycosides from Pentarhizidium orientale Rhizomes and Their Inhibitory Effects on the H1N1 Influenza Virus

scientific article published on 6 October 2017

Caffeic Acid Phenethyl Ester from the Twigs of Cinnamomum cassia Inhibits Malignant Cell Transformation by Inducing c-Fos Degradation

scientific article

Calvatianone, a Sterol Possessing a 6/5/6/5-Fused Ring System with a Contracted Tetrahydrofuran B-Ring, from the Fruiting Bodies of Calvatia nipponica

scientific article published on 17 September 2020

Chemical Characterization of Novel Natural Products from the Roots of Asian Rice (Oryza sativa) that Control Adipocyte and Osteoblast Differentiation

scientific article published on 14 February 2018

Chemical Characterization of a Renoprotective Metabolite from Termite-Associated Streptomyces sp. RB1 against Cisplatin-Induced Cytotoxicity. ⬇️

scientific article published on 7 January 2018

Chemical Composition and Antimicrobial Activity of Essential Oils from the Aerial Parts of Pinus eldarica Grown in Northwestern Iran

scientific article published on 03 September 2019

Chemical Identification of Isoflavonoids from a Termite-Associated sp. RB1 and Their Neuroprotective Effects in Murine Hippocampal HT22 Cell Line ⬇️

scholarly article by Seoung Rak Lee published in September 2018

Chemical constituents from the rare mushroom Calvatia nipponica inhibit the promotion of angiogenesis in HUVECs.

scientific article published on 21 July 2017

Comprehensive Investigation of the Effects of Brewing Conditions in Sample Preparation of Green Tea Infusions.

scientific article published on 4 May 2019

Cumulative Effects of Constituents from the Mushroom Calvatia nipponica on the Contractility of Penile Corpus Cavernosum Smooth Muscle

scientific article published on 03 March 2020

Cyclohumulanoid Sesquiterpenes Induced by the Noncompetitive Coculture of Phellinus orientoasiaticus and Xylodon flaviporus

scientific article published in 2022

Cytotoxic Constituents from the Sclerotia of against Human Lung Adenocarcinoma Cells by Inducing Mitochondrial Apoptosis

article published in 2018

Cytotoxic Withanolides from the Roots of Indian Ginseng ( Withania somnifera)

scientific article published on 18 February 2019

Diketoacetonylphenalenone, Derived from Hawaiian Volcanic Soil-Associated Fungus Penicillium herquei FT729, Regulates T Cell Activation via Nuclear Factor-κB and Mitogen-Activated Protein Kinase Pathway

scientific article published on 17 November 2020

Discovery of Dihydrophaseic Acid Glucosides from the Florets of Carthamus tinctorius

scientific article published on 07 July 2020

Dynamic metabolic exchange governs a marine algal-bacterial interaction.

scientific article

Fridamycin A, a Microbial Natural Product, Stimulates Glucose Uptake without Inducing Adipogenesis.

scientific article published in April 2019

GABA-modulating bacteria of the human gut microbiota

scientific article published on 10 December 2018

GNPS‐Guided Discovery of Madurastatin Siderophores from the Termite‐Associated Actinomadura sp. RB99** ⬇️

scientific article published on 11 April 2022

Hepatoprotective Potency of Chrysophanol 8-O-Glucoside from Rheum palmatum L. against Hepatic Fibrosis via Regulation of the STAT3 Signaling Pathway

scientific article published on 27 November 2020

Highly sensitive, simple, and cost/time-effective method to determine the absolute configuration of a secondary alcohol using competing enantioselective acylation coupled with LC/MS

scientific article published on 01 November 2018

Hybrid Polyketides from a Hydractinia-Associated Cladosporium sphaerospermum SW67 and Their Putative Biosynthetic Origin ⬇️

scientific article published on 24 October 2019

Identification of Anti-Inflammatory Compounds from Hawaiian Noni (Morinda citrifolia L.) Fruit Juice

scientific article published on 27 October 2020

Identification of Antibacterial Sterols from Korean Wild Mushroom Daedaleopsis confragosa via Bioactivity- and LC-MS/MS Profile-Guided Fractionation

scientific article published in 2022

Inhibitory Effect of (2R)-4-(4-hydroxyphenyl)-2-butanol 2-O-β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside on RANKL-Induced Osteoclast Differentiation and ROS Generation in Macrophages

scientific article published on 28 December 2020

Inhibitory Effect of 1,5-Dimethyl Citrate from Sea Buckthorn (Hippophae rhamnoides) on Lipopolysaccharide-Induced Inflammatory Response in RAW 264.7 Mouse Macrophages

scientific article published on 02 March 2020

Inhibitory effect of Sphagnum palustre extract and its bioactive compounds on aromatase activity

scientific article published in 2016

Isoamericanoic Acid B from as a Potential Phytoestrogen

Lignan Glycosides and Flavonoid Glycosides from the Aerial Portion of and Their Biological Evaluations

scientific article published on 01 August 2018

Linear Peptides Are the Major Products of a Biosynthetic Pathway That Encodes for Cyclic Depsipeptides. ⬇️

scientific article published on 22 March 2017

Lobatamunsolides A-C, Norlignans from the Roots of Pueraria lobata and their Nitric Oxide Inhibitory Activities in Macrophages

scientific article published on 20 November 2019

Macrocyclic Trichothecene Mycotoxins from a Deadly Poisonous Mushroom, Podostroma cornu-damae

scientific article published on 20 November 2018

Macrotermycins A-D, Glycosylated Macrolactams from a Termite-Associated Amycolatopsis sp. M39. ⬇️

scientific article

Megastigmane Derivatives from the Cladodes of Opuntia humifusa and Their Nitric Oxide Inhibitory Activities in Macrophages

scientific article published on 02 March 2020

Metabolite Profile of Cucurbitane-Type Triterpenoids of Bitter Melon (Fruit of Momordica charantia) and Their Inhibitory Activity against Protein Tyrosine Phosphatases Relevant to Insulin Resistance

scientific article published on 06 January 2021

Morolic Acid 3-O-Caffeate Inhibits Adipogenesis by Regulating Epigenetic Gene Expression

scientific article published on 13 December 2020

Multiple Targets of 3-Dehydroxyceanothetric Acid 2-Methyl Ester to Protect Against Cisplatin-Induced Cytotoxicity in Kidney Epithelial LLC-PK1 Cells

scientific article published on 01 March 2019

Natalenamides A⁻C, Cyclic Tripeptides from the Termite-Associated sp. RB99 ⬇️

scientific article published on 16 November 2018

New phenalenone derivatives from the Hawaiian volcanic soil-associated fungus Penicillium herquei FT729 and their inhibitory effects on indoleamine 2,3-dioxygenase 1 (IDO1)

Pantheric Acids A-C from a Poisonous Mushroom, Amanita pantherina, Promote Lipid Accumulation in Adipocytes

scientific article published on 14 November 2019

Phallac acids A and B, new sesquiterpenes from the fruiting bodies of Phallus luteus

scientific article published on 29 May 2020

Pharbilignan C induces apoptosis through a mitochondria-mediated intrinsic pathway in human breast cancer cells.

scientific article published on 20 August 2016

Phytochemical Constituents Identified from the Aerial Parts of Lespedeza cuneata and Their Effects on Lipid Metabolism during Adipocyte Maturation

scientific article published in 2021

Polyhalogenation of Isoflavonoids by the Termite-Associated Actinomadura sp. RB99

scientific article published on 18 September 2020

Potential Anti-Skin Aging Effect of (-)-Catechin Isolated from the Root Bark of Ulmus davidiana var. japonica in Tumor Necrosis Factor-α-Stimulated Normal Human Dermal Fibroblasts

scientific article published on 13 October 2020

Procyanidin B2 3″-O-gallate Isolated from Reynoutria elliptica Prevents Glutamate-Induced HT22 Cell Death by Blocking the Accumulation of Intracellular Reactive Oxygen Species

scientific article published on 26 August 2019

Protective effect of Korean Red Ginseng against FK506-induced damage in LLC-PK1 cells.

scientific article published on 24 May 2016

Protective effect of ginsenoside Rb1 against tacrolimus-induced apoptosis in renal proximal tubular LLC-PK1 cells.

scientific article published on 10 January 2017

Revised structural assignment of azalomycins based on genomic and chemical analysis

scientific article published in 2021

Species Prioritization Based on Spectral Dissimilarity: A Case Study of Polyporoid Fungal Species

scientific article published in 2021

Termisoflavones A-C, Isoflavonoid Glycosides from Termite-Associated Streptomyces sp. RB1.

scientific article published on 2 December 2016

The Effects of Triterpenoid Saponins from the Seeds of Momordica cochinchinensis on Adipocyte Differentiation and Mature Adipocyte Inflammation

scientific article published on 03 August 2020

The Inhibitory Effects of Cyclodepsipeptides from the Entomopathogenic Fungus on Myofibroblast Differentiation in A549 Alveolar Epithelial Cells

scientific article published on 08 October 2018

The Role of the Histone Methyltransferase EZH2 in Liver Inflammation and Fibrosis in STAM NASH Mice

scientific article published on 02 May 2020

The effects of phenolic glycosides from Betula platyphylla var. japonica on adipocyte differentiation and mature adipocyte metabolism

scholarly article by Joo Young Huh et al published December 2018 in Journal of Enzyme Inhibition and Medicinal Chemistry

Therapeutic Application of Betalains: A Review

scientific article published on 17 September 2020

Tirucallane Triterpenoids from the Stems and Stem Bark of that Control Adipocyte and Osteoblast Differentiations

scientific article published on 23 October 2018

Total Synthesis of Isohericerin, Isohericenone, and Erinacerin A: Development of a Copper-Catalyzed Methylboronation of Terminal Alkynes.

scientific article published on 30 May 2017

Trichothecene and tremulane sesquiterpenes from a hallucinogenic mushroom Gymnopilus junonius and their cytotoxicity

scientific article published on 29 January 2020

Ulmus parvifolia Accelerates Skin Wound Healing by Regulating the Expression of MMPs and TGF-β

scientific article published on 26 December 2019

Verification of the Field Productivity and Bioequivalence of a Medicinal Plant (Polygonum multiflorum) Developed Using an In Vitro Culture Method

scientific article published on 28 September 2020

Verification of the Field Productivity of Rehmannia glutinosa (Gaertn.) DC. Developed Through Optimized In Vitro Culture Method

scientific article published on 03 March 2020

Vulpinic Acid Controls Stem Cell Fate toward Osteogenesis and Adipogenesis

scientific article published on 23 December 2019

Xyloneside A: a new glycosylated incisterol derivative from Xylaria sp. FB

scientific article published on 25 March 2020

List of works by Ki Hyun Kim

(3β,16α)-3,16-Dihydroxypregn-5-en-20-one from the Twigs of Euonymus alatus (Thunb.) Sieb. Exerts Anti-Inflammatory Effects in LPS-Stimulated RAW-264.7 Macrophages

7α,15-Dihydroxydehydroabietic acid from Pinus koraiensis inhibits the promotion of angiogenesis through downregulation of VEGF, p-Akt and p-ERK in HUVECs

<i>Ent</i>-Peniciherqueinone Suppresses Acetaldehyde-Induced Cytotoxicity and Oxidative Stress by Inducing ALDH and Suppressing MAPK Signaling

A community resource for paired genomic and metabolomic data mining

A new rearranged eudesmane sesquiterpene and bioactive sesquiterpenes from the twigs of Lindera glauca (Sieb. et Zucc.) Blume.

Absolute Configuration and Corrected NMR Assignment of 17-Hydroxycyclooctatin, a Fused 5-8-5 Tricyclic Diterpene

Anti-Adipogenic Effects of Salicortin from the Twigs of Weeping Willow (Salix pseudolasiogyne) in 3T3-L1 Cells

Anti-Inflammatory Phenolic Metabolites from the Edible Fungus Phellinus baumii in LPS-Stimulated RAW264.7 Cells.

Anti-adipogenic Effect of β-Carboline Alkaloids from Garlic (Allium sativum)

Antifungal Phenols from Woodfordia uniflora Collected in Oman

Antigastritis effects of Armillariella tabescens (Scop.) Sing. and the identification of its anti-inflammatory metabolites.

Antioxidant and Cytotoxic Activities of Kudzu Roots and Soy Molasses against Pediatric Tumors and Phytochemical Analysis of Isoflavones Using HPLC-DAD-ESI-HRMS

Aviculin Isolated from Lespedeza cuneata Induce Apoptosis in Breast Cancer Cells through Mitochondria-Mediated Caspase Activation Pathway

Beauvetetraones A–C, phomaligadione-derived polyketide dimers from the entomopathogenic fungus, Beauveria bassiana

Beneficial Effects of Bioactive Compounds in Mulberry Fruits against Cisplatin-Induced Nephrotoxicity.

Beneficial effects of Panax ginseng for the treatment and prevention of neurodegenerative diseases: past findings and future directions.

Betulinic Acid Suppresses Ovarian Cancer Cell Proliferation through Induction of Apoptosis

Bioactivity evaluations of betulin identified from the bark of Betula platyphylla var. japonica for cancer therapy

Bioactivity-based analysis and chemical characterization of cytotoxic compounds from a poisonous mushroom, Amanita spissacea, in human lung cancer cells in vitro

Bioactivity-guided isolation and chemical characterization of antiproliferative constituents from morel mushroom (Morchella esculenta) in human lung adenocarcinoma cells

Biological Evaluation of a New Lignan from the Roots of Rice (Oryza sativa)

C-Methylated Flavonoid Glycosides from Pentarhizidium orientale Rhizomes and Their Inhibitory Effects on the H1N1 Influenza Virus

Caffeic Acid Phenethyl Ester from the Twigs of Cinnamomum cassia Inhibits Malignant Cell Transformation by Inducing c-Fos Degradation

Calvatianone, a Sterol Possessing a 6/5/6/5-Fused Ring System with a Contracted Tetrahydrofuran B-Ring, from the Fruiting Bodies of Calvatia nipponica

Chemical Characterization of Novel Natural Products from the Roots of Asian Rice (Oryza sativa) that Control Adipocyte and Osteoblast Differentiation

Chemical Characterization of a Renoprotective Metabolite from Termite-Associated Streptomyces sp. RB1 against Cisplatin-Induced Cytotoxicity. ⬇️

Chemical Composition and Antimicrobial Activity of Essential Oils from the Aerial Parts of Pinus eldarica Grown in Northwestern Iran

Chemical Identification of Isoflavonoids from a Termite-Associated sp. RB1 and Their Neuroprotective Effects in Murine Hippocampal HT22 Cell Line ⬇️

Chemical constituents from the rare mushroom Calvatia nipponica inhibit the promotion of angiogenesis in HUVECs.

Comprehensive Investigation of the Effects of Brewing Conditions in Sample Preparation of Green Tea Infusions.

Cumulative Effects of Constituents from the Mushroom Calvatia nipponica on the Contractility of Penile Corpus Cavernosum Smooth Muscle

Cyclohumulanoid Sesquiterpenes Induced by the Noncompetitive Coculture of Phellinus orientoasiaticus and Xylodon flaviporus

Cytotoxic Constituents from the Sclerotia of against Human Lung Adenocarcinoma Cells by Inducing Mitochondrial Apoptosis

Cytotoxic Withanolides from the Roots of Indian Ginseng ( Withania somnifera)

Diketoacetonylphenalenone, Derived from Hawaiian Volcanic Soil-Associated Fungus Penicillium herquei FT729, Regulates T Cell Activation via Nuclear Factor-κB and Mitogen-Activated Protein Kinase Pathway

Discovery of Dihydrophaseic Acid Glucosides from the Florets of Carthamus tinctorius

Dynamic metabolic exchange governs a marine algal-bacterial interaction.

Fridamycin A, a Microbial Natural Product, Stimulates Glucose Uptake without Inducing Adipogenesis.

GABA-modulating bacteria of the human gut microbiota

GNPS‐Guided Discovery of Madurastatin Siderophores from the Termite‐Associated Actinomadura sp. RB99** ⬇️

Hepatoprotective Potency of Chrysophanol 8-<i>O</i>-Glucoside from <i>Rheum palmatum</i> L. against Hepatic Fibrosis via Regulation of the STAT3 Signaling Pathway

Highly sensitive, simple, and cost/time-effective method to determine the absolute configuration of a secondary alcohol using competing enantioselective acylation coupled with LC/MS

Hybrid Polyketides from a Hydractinia-Associated Cladosporium sphaerospermum SW67 and Their Putative Biosynthetic Origin ⬇️

Identification of Anti-Inflammatory Compounds from Hawaiian Noni (Morinda citrifolia L.) Fruit Juice

Identification of Antibacterial Sterols from Korean Wild Mushroom Daedaleopsis confragosa via Bioactivity- and LC-MS/MS Profile-Guided Fractionation

Inhibitory Effect of (2<i>R</i>)-4-(4-hydroxyphenyl)-2-butanol 2-<i>O</i>-β-d-apiofuranosyl-(1→6)-β-d-glucopyranoside on RANKL-Induced Osteoclast Differentiation and ROS Generation in Macrophages

Inhibitory Effect of 1,5-Dimethyl Citrate from Sea Buckthorn (Hippophae rhamnoides) on Lipopolysaccharide-Induced Inflammatory Response in RAW 264.7 Mouse Macrophages

Inhibitory effect of &lt;i&gt;Sphagnum palustre&lt;/i&gt; extract and its bioactive compounds on aromatase activity

Isoamericanoic Acid B from as a Potential Phytoestrogen

Lignan Glycosides and Flavonoid Glycosides from the Aerial Portion of and Their Biological Evaluations

Linear Peptides Are the Major Products of a Biosynthetic Pathway That Encodes for Cyclic Depsipeptides. ⬇️

Lobatamunsolides A-C, Norlignans from the Roots of Pueraria lobata and their Nitric Oxide Inhibitory Activities in Macrophages

Macrocyclic Trichothecene Mycotoxins from a Deadly Poisonous Mushroom, Podostroma cornu-damae

Macrotermycins A-D, Glycosylated Macrolactams from a Termite-Associated Amycolatopsis sp. M39. ⬇️

Megastigmane Derivatives from the Cladodes of Opuntia humifusa and Their Nitric Oxide Inhibitory Activities in Macrophages

Metabolite Profile of Cucurbitane-Type Triterpenoids of Bitter Melon (Fruit of <i>Momordica charantia</i>) and Their Inhibitory Activity against Protein Tyrosine Phosphatases Relevant to Insulin Resistance

Morolic Acid 3-<i>O</i>-Caffeate Inhibits Adipogenesis by Regulating Epigenetic Gene Expression

Multiple Targets of 3-Dehydroxyceanothetric Acid 2-Methyl Ester to Protect Against Cisplatin-Induced Cytotoxicity in Kidney Epithelial LLC-PK1 Cells

Natalenamides A⁻C, Cyclic Tripeptides from the Termite-Associated sp. RB99 ⬇️

New phenalenone derivatives from the Hawaiian volcanic soil-associated fungus Penicillium herquei FT729 and their inhibitory effects on indoleamine 2,3-dioxygenase 1 (IDO1)

Pantheric Acids A-C from a Poisonous Mushroom, Amanita pantherina, Promote Lipid Accumulation in Adipocytes

Phallac acids A and B, new sesquiterpenes from the fruiting bodies of Phallus luteus

Pharbilignan C induces apoptosis through a mitochondria-mediated intrinsic pathway in human breast cancer cells.

Phytochemical Constituents Identified from the Aerial Parts of Lespedeza cuneata and Their Effects on Lipid Metabolism during Adipocyte Maturation

Polyhalogenation of Isoflavonoids by the Termite-Associated Actinomadura sp. RB99

Potential Anti-Skin Aging Effect of (-)-Catechin Isolated from the Root Bark of Ulmus davidiana var. japonica in Tumor Necrosis Factor-α-Stimulated Normal Human Dermal Fibroblasts

Procyanidin B2 3″-O-gallate Isolated from Reynoutria elliptica Prevents Glutamate-Induced HT22 Cell Death by Blocking the Accumulation of Intracellular Reactive Oxygen Species

Protective effect of Korean Red Ginseng against FK506-induced damage in LLC-PK1 cells.

Protective effect of ginsenoside Rb1 against tacrolimus-induced apoptosis in renal proximal tubular LLC-PK1 cells.

Revised structural assignment of azalomycins based on genomic and chemical analysis

Species Prioritization Based on Spectral Dissimilarity: A Case Study of Polyporoid Fungal Species

Termisoflavones A-C, Isoflavonoid Glycosides from Termite-Associated Streptomyces sp. RB1.

The Effects of Triterpenoid Saponins from the Seeds of Momordica cochinchinensis on Adipocyte Differentiation and Mature Adipocyte Inflammation

The Inhibitory Effects of Cyclodepsipeptides from the Entomopathogenic Fungus on Myofibroblast Differentiation in A549 Alveolar Epithelial Cells

The Role of the Histone Methyltransferase EZH2 in Liver Inflammation and Fibrosis in STAM NASH Mice

The effects of phenolic glycosides from Betula platyphylla var. japonica on adipocyte differentiation and mature adipocyte metabolism

Therapeutic Application of Betalains: A Review

Tirucallane Triterpenoids from the Stems and Stem Bark of that Control Adipocyte and Osteoblast Differentiations

Total Synthesis of Isohericerin, Isohericenone, and Erinacerin A: Development of a Copper-Catalyzed Methylboronation of Terminal Alkynes.

Inhibitory effect of <i>Sphagnum palustre</i> extract and its bioactive compounds on aromatase activity