1
|
Taghavi S, Abbasi Montazeri E, Zekavati R, Roomiani L, Saffarian P. Identification of a New Compound (4-Fluoro-2-Trifluoromethyl Imidazole) Extracted from a New Halophilic Bacillus aquimaris Strain Persiangulf TA2 Isolated from the Northern Persian Gulf with Broad-Spectrum Antimicrobial Effect. IRANIAN JOURNAL OF BIOTECHNOLOGY 2023; 21:e3359. [PMID: 38269196 PMCID: PMC10804065 DOI: 10.30498/ijb.2023.338788.3359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Accepted: 05/18/2023] [Indexed: 01/26/2024]
Abstract
Background The unique ecosystem of the Persian Gulf has made it a rich source of natural antimicrobial compounds produced by various microorganisms, especially bacteria, which can be used in the treatment of infectious diseases, especially those of drug-resistant microbes. Objectives This study aimed to identify antimicrobial compounds in the bacteria isolated from the northern region of the Persian Gulf in Abadan (Chavibdeh port), Iran, for the first time. Materials and Methods Sampling was performed in the fall on November 15, 2019, from 10 different stations (water and sediment samples). The secondary metabolites of all isolates were extracted, and their antimicrobial effects were investigated. 16S ribosomal ribonucleic acid sequencing was used for the identification of the strains that showed the best inhibition against selected pathogens, and growth conditions were optimized for them. A fermentation medium in a volume of 5000 mL was prepared to produce the antimicrobial compound by the superior strain. The extracted antimicrobial compounds were identified using the gas chromatography-mass spectrometry technique. Minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) were determined for the superior strain. The effects of salinity, pH, and temperature on the production of antimicrobial compounds were determined by measuring the inhibitory region (mm) of methicillin-resistant Staphylococcus aureus (MRSA). Results Four new strains with antimicrobial properties (i.e., Halomonas sp. strain Persiangulf TA1, Bacillus aquimaris strain Persiangulf TA2, Salinicoccus roseus strain Persiangulf TA4, and Exiguobacterium profundum strain Persiangulf TA9) were identified. The optimum growth temperatures were determined at 37-30, 37, and 40 °C for TA1 and TA2, TA4, and TA9 strains, respectively. The optimum pH values for the four strains were 7, 6-7, 7.5, and 6.5-7.5, respectively. The optimal salt concentrations for the four strains were 15%, 2.5-5%, 7.5%, and 5%, respectively. The ethyl acetate extract of strain Persiangulf TA2 showed extensive antimicrobial activity against human pathogens (75%) and MRSA. The most abundant compound identified in TA2 extract was the new compound 4-fluoro-2-trifluoromethyl imidazole. The MBC and MIC for the ethyl acetate extract of strain TA2 were 20 and 5 mg. mL-1 (Staphylococcus aureus), 40 and 20 mg. mL-1 (MRSA, Escherichia coli, and Enterococcus faecalis), 40 and 10 mg. mL-1 Acinetobacter baumannii), and 80 and 40 mg. mL-1 (Staphylococcus epidermidis, Shigella sp., Bacillus cereus, and Klebsiella pneumoniae), respectively. The optimal conditions for antibiotic production by TA2 strain were 5% salt concentration, pH of 7, and temperature of 35 °C. Conclusion Newly detected natural compounds in TA2 strain due to superior antimicrobial activity even against MRSA strain can be clinically valuable in pharmacy and treatment.
Collapse
Affiliation(s)
- Sara Taghavi
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Effat Abbasi Montazeri
- Department of Microbiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Roya Zekavati
- Department of Biology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
| | - laleh Roomiani
- Department of Fisheries, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran
| | - Parvaneh Saffarian
- Department of Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran
| |
Collapse
|
2
|
Shi T, Wang H, Li YJ, Wang YF, Pan Q, Wang B, Shang EL. Genus Acrostalagmus: A Prolific Producer of Natural Products. Biomolecules 2023; 13:1191. [PMID: 37627256 PMCID: PMC10452555 DOI: 10.3390/biom13081191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/26/2023] [Accepted: 07/28/2023] [Indexed: 08/27/2023] Open
Abstract
Acrostalagmus is known for its ability to produce numerous bioactive natural products, making it valuable in drug development. This review provides information on the sources, distribution, chemical structure types, biosynthesis, and biological activities of the compounds isolated from the genus Acrostalagmus in the family Plectosphaerellaceae from 1969 to 2022. The results show that 50% of the compounds isolated from Acrostalagmus are new natural products, and 82% of the natural products derived from this genus are from the marine Acrostalagmus. The compounds isolated from Acrostalagmus exhibit diverse structures, with alkaloids being of particular importance, accounting for 56% of the natural products derived from this genus. Furthermore, within the alkaloid class, 61% belong to the epipolythiodioxopiperazine family, highlighting the significance of epipolythiodioxopiperazine as a key characteristic structure within Acrostalagmus. Seventy-two percent of natural products derived from Acrostalagmus display bioactivities, with 50% of the bioactive compounds exhibiting more significant or comparable activities than their positive controls. Interestingly, 89% of potent active compounds are derived from marine fungi, demonstrating their promising potential for development. These findings underscore Acrostalagmus, particularly the marine-derived genus Acrostalagmusas, a valuable source of new bioactive secondary metabolites, and emphasize the vast resource importance of the ocean.
Collapse
Affiliation(s)
- Ting Shi
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China; (T.S.); (H.W.); (Y.-J.L.); (Y.-F.W.); (Q.P.)
- State Key Laboratory of Microbial Technology, Institute of Microbial Technology, Shandong University, Qingdao 266237, China
| | - Han Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China; (T.S.); (H.W.); (Y.-J.L.); (Y.-F.W.); (Q.P.)
| | - Yan-Jing Li
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China; (T.S.); (H.W.); (Y.-J.L.); (Y.-F.W.); (Q.P.)
| | - Yi-Fei Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China; (T.S.); (H.W.); (Y.-J.L.); (Y.-F.W.); (Q.P.)
| | - Qun Pan
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China; (T.S.); (H.W.); (Y.-J.L.); (Y.-F.W.); (Q.P.)
| | - Bo Wang
- College of Chemical and Biological Engineering, Shandong University of Science and Technology, Qingdao 266590, China; (T.S.); (H.W.); (Y.-J.L.); (Y.-F.W.); (Q.P.)
| | - Er-Lei Shang
- School of Life Sciences, Shandong University, Qingdao 266237, China
| |
Collapse
|
3
|
Jiang P, Luo J, Jiang Y, Zhang L, Jiang L, Teng B, Niu H, Zhang D, Lei H. Anti-Inflammatory Polyketide Derivatives from the Sponge-Derived Fungus Pestalotiopsis sp. SWMU-WZ04-2. Mar Drugs 2022; 20:711. [PMID: 36421989 PMCID: PMC9697532 DOI: 10.3390/md20110711] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/05/2022] [Accepted: 11/09/2022] [Indexed: 05/31/2024] Open
Abstract
Five undescribed polyketide derivatives, pestaloketides A-E (1-5), along with eleven known analogues (6-16), were isolated from the sponge-derived fungus Pestalotiopsis sp. Their structures, including absolute configurations, were elucidated by analyses of NMR spectroscopic HRESIMS data and electronic circular dichroism (ECD) calculations. Compounds 5, 6, 9, and 14 exhibited weak cytotoxicities against four human cancer cell lines, with IC50 values ranging from 22.1 to 100 μM. Pestaloketide A (1) is an unusual polyketide, featuring a rare 5/10/5-fused ring system. Pestaloketides A (1) and B (2) exhibited moderately inhibited LPS-induced NO production activity, with IC50 values of 23.6 and 14.5 μM, respectively, without cytotoxicity observed. Preliminary bioactivity evaluations and molecular docking analysis indicated that pestaloketides A (1) and B (2) had the potential to be developed into anti-inflammatory activity drug leads.
Collapse
Affiliation(s)
- Peng Jiang
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
- Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
- University of Chinese Academy of Sciences, 19 Yuquan Road, Beijing 100049, China
| | - Jinfeng Luo
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Yao Jiang
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Liping Zhang
- Key Laboratory of Tropical Marine Bioresources and Ecology, Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China
| | - Liyuan Jiang
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Baorui Teng
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Hong Niu
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Dan Zhang
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| | - Hui Lei
- School of Pharmacy, Southwest Medical University, Luzhou 646000, China
| |
Collapse
|
4
|
Song J, Xu K, Liu C, Wang T, Luan X, Zhu L, Chu Z, Fu X, Chang W, Wang X, Lou H. Bioactive specialised metabolites from the endophytic fungus Xylaria sp. of Cudrania tricuspidata. PHYTOCHEMISTRY 2022; 196:113079. [PMID: 34995881 DOI: 10.1016/j.phytochem.2021.113079] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 06/14/2023]
Abstract
Fourteen undescribed compounds, including five 2,5-diarylcyclopentenones xylariaones A1-B2, seven α-pyrone derivatives xylaripyones A-G, one γ-pyrone derivative xylaripyone H, one diketopiperazine cyclo-(L-Leu-N-ethyl-L-Glu), and two known diketopiperazines, were isolated from cultures of the endophytic fungus Xylaria sp., which was separated from Cudrania tricuspidata Bureau ex Lavallée. Their structures were determined by analysing extensive spectroscopic data (HRESIMS and NMR) and electronic circular dichroism (ECD) calculations. Furthermore, these compounds were evaluated for potential antiproliferative activity against the human tumour cell lines PC3 and A549, and the results showed that xylaripyone D exhibited moderate inhibitory activity against the proliferation of PC3 cell lines with an IC50 value of 14.75 μM. Meanwhile, xylariaone A3 and xylaripyone F displayed weak inhibitory effects on NO production in RAW 264.7 murine macrophages with IC50 values of 49.76 and 69.68 μM, respectively.
Collapse
Affiliation(s)
- Jintong Song
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Ke Xu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China; The Second Hospital of Shandong University, No. 247 Bei-Yuan Street, Jinan, 250033, PR China
| | - Chunyu Liu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Tian Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaoyi Luan
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Lihua Zhu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Zhaojun Chu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaojie Fu
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Wenqiang Chang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Xiaoning Wang
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China
| | - Hongxiang Lou
- Department of Natural Product Chemistry, Key Lab of Chemical Biology of Ministry of Education, School of Pharmaceutical Sciences, Shandong University, No. 44 West Wenhua Road, Jinan, 250012, PR China.
| |
Collapse
|
5
|
Cheng MJ, Wu MD, Chang HS, Chen JJ, Tseng M. Metabolites from a New Actinobacteria, Herbidospora yilanensis. Chem Nat Compd 2022. [DOI: 10.1007/s10600-022-03626-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
6
|
Grice KA, Ching NJ. Computational examination of a proposed highly-strained natural product. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
7
|
Tanaka E, Hosoe T, Degawa Y, Kolařík M. Revision of the genus Aciculosporium ( Clavicipitaceae) with a description of a new species on wavyleaf basketgrass, and proline-containing cyclic dipeptide production by A. take. MYCOSCIENCE 2021; 62:166-175. [PMID: 37091325 PMCID: PMC9157783 DOI: 10.47371/mycosci.2021.01.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2020] [Revised: 12/27/2020] [Accepted: 01/14/2021] [Indexed: 11/16/2022]
Abstract
The genus Aciculosporium (Clavicipitaceae, Hypocreales, Ascomycota)was established in 1908 for A. take , which is the causal fungus of witches' broom of bamboo. Although the original description was valid at that time, a type specimen for A. take has not been designated. To standardize the use of this genus and species name, a neotypification and reference specimen of A. take are proposed. Multilocus phylogenetic analyses based on DNA sequences from 28S rDNA, TEF, Tub2, Mcm7, and RPB2 revealed that A.sasicola is from a different lineage to A. take, and other specimens from wavyleaf basket grass (Oplismenus undulatifolius) represent a distinct species proposed here as Aciculosporium oplismeni sp. nov. Chemical analysis using mass spectrometry and nuclear magnetic resonance spectroscopy showed that A. take produces four proline-containing cyclic dipeptides, which are moieties of ergot alkaloids. However, ergot alkaloids, lolines, peramine, indole-diterpenes, and lolitrem were not detected in the culture solvent. This study offers clarification of the lineage and morphology of this genus.
Collapse
Affiliation(s)
| | - Tomoo Hosoe
- Department of Organic Chemistry, Hoshi University
| | - Yousuke Degawa
- Mountain Science Center, Sugadaira Research Station, University of Tsukuba
| | - Miroslav Kolařík
- Laboratory of Fungal Genetics and Metabolism, Institute of Microbiology of the Czech Academy of Sciences
| |
Collapse
|
8
|
Chang HM, Foo HL, Loh TC, Lim ETC, Abdul Mutalib NE. Comparative Studies of Inhibitory and Antioxidant Activities, and Organic Acids Compositions of Postbiotics Produced by Probiotic Lactiplantibacillus plantarum Strains Isolated From Malaysian Foods. Front Vet Sci 2021; 7:602280. [PMID: 33575277 PMCID: PMC7870707 DOI: 10.3389/fvets.2020.602280] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 12/11/2020] [Indexed: 01/08/2023] Open
Abstract
Despite inflammation being a protective natural defense against imbalance stressors in the body, chronic inflammation could lead to the deterioration of immune response, low production, and poor performance in livestock as well as severe economic losses to the farmers. Postbiotics produced by Lactiplantibacillus plantarum has been reported recently to be a natural source of antioxidant, promoting growth performance, anti-inflammation, and immune responses. However, the effects of fermentation media on the compositions of L. plantarum postbiotic have not been reported elsewhere. Hence, a comparative study was conducted to compare the volatile compounds, organic acid composition, and antioxidant and antimicrobial activities of postbiotics produced by six strains of L. plantarum cultivated by using formulated media and the commercial de Man, Rogosa, and Sharpe (MRS) medium as a control. Postbiotics RG14, RI11, and UL4 produced by using formulated media exhibited higher inhibitory activity against Pediococcus acidilactici 446, Escherichia coli E-30, Salmonella enterica CS3, and vancomycin-resistant Enterococci except for Listeria monocytogenes LS55. As for the antioxidant activity, hydroxyl radical scavenging activity was enhanced in formulated media, whereas reducing power activity was the highest in postbiotic RI11. Three organic acids, namely, acetic acid, caproic acid, and lactic acid, were detected in the postbiotic produced by various L. plantarum strains. The concentration of acetic acid was influenced by the fermentation media, whereas caproic acid was detected as the highest in postbiotic RG11. Lactic acid was the predominant compound detected in all the postbiotics and had the significantly highest concentration in postbiotic RS5 when produced by using the MRS medium. Intermediary and pyrrole compounds were the other main compounds that were detected by using GC-MS. Positive correlations were found between organic acid production and inhibitory activity, as well as antioxidant activity exhibited by postbiotics. In conclusion, the compositions and functional characteristics of postbiotics produced by the six strains of L. plantarum were strain-dependent and affected greatly by the fermentation medium. The effects of postbiotic composition on the functional characteristics of postbiotics were elucidated in this study to warrant their applications as a promising beneficial natural growth promoter for the livestock industry.
Collapse
Affiliation(s)
- Hui Mei Chang
- Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, Selangor, Malaysia
| | - Hooi Ling Foo
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Selangor, Malaysia
- Institute of Bioscience, Universiti Putra Malaysia, Selangor, Malaysia
| | - Teck Chwen Loh
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, Selangor, Malaysia
| | - Eric Teik Chung Lim
- Department of Animal Science, Faculty of Agriculture, Universiti Putra Malaysia, Selangor, Malaysia
- Institute of Tropical Agriculture and Food Security, Universiti Putra Malaysia, Selangor, Malaysia
| | - Nur Elina Abdul Mutalib
- Agro-Biotechnology Institute (ABI), National Institute Biotechnology Malaysia (NIBM), Selangor, Malaysia
| |
Collapse
|
9
|
A New Constituent of Herbidospora daliensis Actinobacteria. Chem Nat Compd 2021. [DOI: 10.1007/s10600-021-03280-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
10
|
Mohamed TA, Elshamy AI, Abd‐ElGawad AM, Hussien TA, El‐Toumy SA, Efferth T, Hegazy MF. Cytotoxic and chemotaxonomic study of isolated metabolites from Centaurea aegyptiaca. J CHIN CHEM SOC-TAIP 2021; 68:159-168. [DOI: 10.1002/jccs.202000156] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2020] [Accepted: 08/25/2020] [Indexed: 09/02/2023]
Abstract
AbstractThe aerial parts of Centaureaa egyptiaca afforded 10 secondary metabolites including four sesquiterpene lactones; chlorohyssopifolin A (centaurepensin) (1), rediolpidetriol (2), linichlorinA (3), and sinaicin (4), one monoterpene; loliolid (5), one phenolic: tyrosol (6), three lignans; arctigenin (7), matairesinol (8), and pinoresinol (9), and one steroid; ergosta‐5,22‐dien‐3‐ol (10). The cluster analysis of 32 Centaurea species revealed that C. aegyptiaca is closely related to C. repens and C. solstitialise. The isolated compounds (1–10) were screened against CCRF‐CEM‐leukemia, MDA‐MB‐231‐pcDNA3 breast cancer, and HCT116 (p53+/+) colon carcinoma cell lines. Compounds1 and 2 were the most potent compounds against both leukemia and breast carcinoma cell lines.
Collapse
Affiliation(s)
- Tarik A. Mohamed
- Chemistry of Medicinal Plants Department National Research Centre Giza Egypt
| | | | - Ahmed M. Abd‐ElGawad
- Department of Plant Production College of Food and Agriculture Sciences, King Saud University Riyadh Saudi Arabia
- Department of Botany Faculty of Science, Mansoura University Mansoura Egypt
| | - Taha A. Hussien
- Department of Pharmacognosy Faculty of Pharmacy, Deraya University Minia Egypt
| | | | - Thomas Efferth
- Department of Pharmaceutical Biology Institute of Pharmacy and Biochemistry, University of Mainz Mainz Germany
| | - Mohamed‐Elamir F. Hegazy
- Chemistry of Medicinal Plants Department National Research Centre Giza Egypt
- Department of Pharmaceutical Biology Institute of Pharmacy and Biochemistry, University of Mainz Mainz Germany
| |
Collapse
|
11
|
Li Y, Yuan S, Yong X, zhao T, Liu J. Research progress on small peptides in Chinese Baijiu. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104081] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
|
12
|
Liu C, Jiang Y, Huang R, Jiang B, Zheng K, Wu S. Diverse Secondary Metabolites from a Lichen-Derived Amycolatopsis Strain. Curr Microbiol 2020; 77:2104-2110. [PMID: 32468182 DOI: 10.1007/s00284-020-02049-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 05/21/2020] [Indexed: 01/09/2023]
Abstract
In this study, the secondary metabolites of a lichen-derived actinomycete strain Amycolatopsis sp. YIM 130687 were investigated intensively by using three different media (4#, 302#, and 312#) for fermentation. A total of 21 compounds were isolated from the fermented extraction of the strain. The structures of all compounds were identified by the examination of HRESIMS and NMR spectra. Compounds 1-3, 5, 6, 21 were only found in the cultivation on 302# medium, while compounds 4, 9-11 were only obtained when the strain was cultured on 312# medium. On the other hand, compounds 7, 8, and 20 were only isolated from the fermentation product on 4# medium. The antimicrobial activity test showed that compound 9 had significant inhibitory effects on bacterial pathogens of Staphylococcus aureus and MRSA with the MICs of 2 μg/ml and fungal pathogens of Botrytis cinerea and Fusarium graminearum with the MICs of 1 μg/ml.
Collapse
Affiliation(s)
- Chuansheng Liu
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Yi Jiang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Rong Huang
- School of Chemical Science and Technology, Yunnan University, Kunming, 650091, China
| | - Boguang Jiang
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Kaixuan Zheng
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China
| | - Shaohua Wu
- Yunnan Institute of Microbiology, School of Life Sciences, Yunnan University, Kunming, 650091, China.
| |
Collapse
|
13
|
New Chlorinated 2,5-Diketopiperazines from Marine-Derived Bacteria Isolated from Sediments of the Eastern Mediterranean Sea. Molecules 2020; 25:molecules25071509. [PMID: 32225050 PMCID: PMC7181205 DOI: 10.3390/molecules25071509] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 03/21/2020] [Accepted: 03/23/2020] [Indexed: 11/17/2022] Open
Abstract
From the organic extracts of five bacterial strains isolated from marine sediments collected in the East Mediterranean Sea, three new (15, 16, 31) and twenty-nine previously reported (1–14, 17–30, 32) metabolites bearing the 2,5-diketopiperazine skeleton were isolated. The structures of the chlorinated compounds 15, 16, and 31 were elucidated by extensive analysis of their spectroscopic data (NMR, MS, UV, IR). Compounds 15 and 16 were evaluated for their antifungal activity against Candida albicans and Aspergillus niger but were proven inactive. The relevant literature is supplemented with complete NMR assignments and revisions for the 29 previously reported compounds.
Collapse
|
14
|
Kwon SH, Lee SR, Park YJ, Ra M, Lee Y, Pang C, Kim KH. Suppression of 6-Hydroxydopamine-Induced Oxidative Stress by Hyperoside Via Activation of Nrf2/HO-1 Signaling in Dopaminergic Neurons. Int J Mol Sci 2019; 20:ijms20235832. [PMID: 31757050 PMCID: PMC6929192 DOI: 10.3390/ijms20235832] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Revised: 11/15/2019] [Accepted: 11/18/2019] [Indexed: 02/07/2023] Open
Abstract
In our ongoing research to discover natural products with neuroprotective effects, hyperoside (quercetin 3-O-galactoside) was isolated from Acer tegmentosum, which has been used in Korean traditional medicine to treat liver-related disorders. Here, we demonstrated that hyperoside protects cultured dopaminergic neurons from death via reactive oxygen species (ROS)-dependent mechanisms, although other relevant mechanisms of hyperoside activity remain largely uncharacterized. For the first time, we investigated the neuroprotective effects of hyperoside on 6-hydroxydopamine (6-OHDA)-induced neurotoxicity in neurons, and the possible underlying mechanisms. Hyperoside significantly ameliorated the loss of neuronal cell viability, lactate dehydrogenase release, excessive ROS accumulation and mitochondrial membrane potential dysfunction associated with 6-OHDA-induced neurotoxicity. Furthermore, hyperoside treatment activated the nuclear erythroid 2-related factor 2 (Nrf2), an upstream molecule of heme oxygenase-1 (HO-1). Hyperoside also induced the expression of HO-1, an antioxidant response gene. Remarkably, we found that the neuroprotective effects of hyperoside were weakened by an Nrf2 small interfering RNA, which blocked the ability of hyperoside to inhibit neuronal death, indicating the vital role of HO-1. Overall, we show that hyperoside, via the induction of Nrf2-dependent HO-1 activation, suppresses neuronal death caused by 6-OHDA-induced oxidative stress. Moreover, Nrf2-dependent HO-1 signaling activation represents a potential preventive and therapeutic target in Parkinson's disease management.
Collapse
Affiliation(s)
- Seung-Hwan Kwon
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.;
- Department of Neurology, The Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Seoung Rak Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.R.L.); (Y.J.P.)
| | - Yong Joo Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.R.L.); (Y.J.P.)
| | - Moonjin Ra
- Hongcheon Institute of Medicinal Herb, 101 Yeonbongri, Hongcheon 25142, Korea; (M.R.); (Y.L.)
| | - Yongjun Lee
- Hongcheon Institute of Medicinal Herb, 101 Yeonbongri, Hongcheon 25142, Korea; (M.R.); (Y.L.)
| | - Changhyun Pang
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Korea
- SKKU Advanced Institute of Nanotechnology Sungkyunkwan University, Suwon 16419, Korea
- Correspondence: (C.P.); (K.H.K.); Tel.: +82-31-290-7341 (C.P.); +82-31-290-7700 (K.H.K.)
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea; (S.R.L.); (Y.J.P.)
- Correspondence: (C.P.); (K.H.K.); Tel.: +82-31-290-7341 (C.P.); +82-31-290-7700 (K.H.K.)
| |
Collapse
|
15
|
1-Carbomethoxy-β-Carboline, Derived from Portulaca oleracea L., Ameliorates LPS-Mediated Inflammatory Response Associated with MAPK Signaling and Nuclear Translocation of NF-κB. Molecules 2019; 24:molecules24224042. [PMID: 31703464 PMCID: PMC6891712 DOI: 10.3390/molecules24224042] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 10/25/2019] [Accepted: 11/05/2019] [Indexed: 02/01/2023] Open
Abstract
Portulaca oleracea is as a medicinal plant known for its neuroprotective, hepatoprotective, antidiabetic, antioxidant, anticancer, antimicrobial, antiulcerogenic, and anti-inflammatory activities. However, the specific active compounds responsible for the individual pharmacological effects of P. oleracea extract (95% EtOH) remain unknown. Here, we hypothesized that alkaloids, the most abundant constituents in P. oleracea extract, are responsible for its anti-inflammatory activity. We investigated the phytochemical substituents (compounds 1–22) using nuclear magnetic resonance (NMR) and electrospray ionization mass spectrometry (ESI-MS) and screened their effects on NO production in lipopolysaccharide (LPS)-induced macrophages. Compound 20, 1-carbomethoxy-β-carboline, as an alkaloid structure, ameliorated nitric oxide (NO) production, inducible nitric oxide synthase (iNOS), and proinflammatory cytokines associated with the mitogen-activated protein kinase (MAPK) pathways, p38, extracellular signal-regulated kinase (ERK), and c-Jun N-terminal kinase (JNK). Subsequently, we observed that compound 20 suppressed nuclear translocation of nuclear factor κB (NF-κB) using immunocytochemistry. Moreover, we recently reported that compound 8, trans-N-feruloyl-3’, 7’-dimethoxytyramine, was originally purified from P. oleracea extracts. Our results suggest that 1-carbomethoxy-β-carboline, the most effective anti-inflammatory agent among alkaloids in the 95% EtOH extract of P. oleracea, was suppressing the MAPK pathway and nuclear translocation of NF-κB. Therefore, P. oleracea extracts and specifically 1-carbomethoxy-β-carboline may be novel therapeutic candidates for the treatment of inflammatory diseases associated with the activation of MAPKs and NF-κB.
Collapse
|
16
|
Tyrosol from marine Fungi, a novel Quorum sensing inhibitor against Chromobacterium violaceum and Pseudomonas aeruginosa. Bioorg Chem 2019; 91:103140. [DOI: 10.1016/j.bioorg.2019.103140] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 07/12/2019] [Accepted: 07/19/2019] [Indexed: 11/30/2022]
|
17
|
da Rosa BV, Kuhn KR, Ugalde GA, Zabot GL, Kuhn RC. Antioxidant compounds extracted from Diaporthe schini using supercritical CO 2 plus cosolvent. Bioprocess Biosyst Eng 2019; 43:133-141. [PMID: 31542822 DOI: 10.1007/s00449-019-02211-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 09/06/2019] [Accepted: 09/08/2019] [Indexed: 11/26/2022]
Abstract
Endophytic fungi have been highlight in the production of secondary metabolites with different bioactive properties, such as in the production of the antioxidant compounds. Therefore, the objective of this work was the extraction of the antioxidant compounds from the biomass of Diaporthe schini using supercritical carbon dioxide (CO2) without and with ethanol as cosolvent. The biomass was produced by submerged fermentation and the parameters evaluated in the extraction process were: pressure (150-250 bar), temperature (40-60 ºC) and cosolvent [biomass: cosolvent ratio, 1:0, 1:0.75 and 1:1.5 (w/v)]. Extraction yield, antioxidant activity and chemical composition of the extracts were determined. The highest extraction yield (3.24 wt.%) and the best antioxidant activity against the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical (96.62%) were obtained at 40 ºC, 250 bar and biomass:cosolvent ratio of 1:1.5 (w/v). The chemical compounds 1,4-diaza-2,5-dioxo-3-isobutyl bicyclo[4.3.0]nonane and benzeneethanol identified in GC/MS could be responsible for the antioxidant activity found in this study.
Collapse
Affiliation(s)
- Barbara Vargas da Rosa
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima avenue, Santa Maria, 97105-900, Brazil
| | - Kátia Regina Kuhn
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima avenue, Santa Maria, 97105-900, Brazil
| | - Gustavo Andrade Ugalde
- Department of Agricultural Engineering, Federal University of Santa Maria, 1000, Roraima avenue, Santa Maria, 97105-900, Brazil
| | - Giovani Leone Zabot
- Laboratory of Agroindustrial Processes Engineering (LAPE), Federal University of Santa Maria, 1040, Sete de Setembro St., Centre DC, Cachoeira Do Sul, RS, 96508-010, Brazil
| | - Raquel Cristine Kuhn
- Department of Chemical Engineering, Federal University of Santa Maria, 1000, Roraima avenue, Santa Maria, 97105-900, Brazil.
| |
Collapse
|
18
|
Otsuka Y, Arita H, Sakaji M, Yamamoto K, Kashiwagi T, Shimamura T, Ukeda H. Investigation of the formation mechanism of proline-containing cyclic dipeptide from the linear peptide. Biosci Biotechnol Biochem 2019; 83:2355-2363. [PMID: 31462170 DOI: 10.1080/09168451.2019.1659718] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Cyclic dipeptides, 2,5-diketopiperazines (DKPs), are well-known bioactive and taste compounds in food. DKPs have also been reported in various foods and particularly, Pro-containing DKPs (cyclo(-X-Pro)) are more predominant in heated and fermented foods than other type of DKPs. However, the mechanism underlying the preferential formation of Pro-containing DKPs in food remains uncertain. Herein, we attempted to elucidate the effects of reaction conditions and the mechanism of DKPs formation. The reaction conditions (heating time, heating temperature, and pH) and amino acid sequence of the linear peptides were important for the DKPs formation from linear peptides. In addition, Pro-containing DKPs were significantly formed from linear peptides with the second amino acid from the N-terminus being Pro. Based on these results, the underlying mechanism of the enrichment of Pro-containing DKPs in foods was proposed.
Collapse
Affiliation(s)
- Yuuki Otsuka
- Faculty of Agriculture and Marine Science, Kochi University, Kochi, Japan
| | - Hikaru Arita
- Faculty of Agriculture and Marine Science, Kochi University, Kochi, Japan
| | - Michio Sakaji
- Faculty of Agriculture and Marine Science, Kochi University, Kochi, Japan
| | - Kenji Yamamoto
- Research Strategy Planning Department, Suntory Holdings Ltd, Tokyo, Japan
| | - Takehiro Kashiwagi
- Faculty of Agriculture and Marine Science, Kochi University, Kochi, Japan
| | - Tomoko Shimamura
- Faculty of Agriculture and Marine Science, Kochi University, Kochi, Japan
| | - Hiroyuki Ukeda
- Center for Regional Sustainability and Innovation, Kochi University, Kochi, Japan
| |
Collapse
|
19
|
Lee SR, Park YJ, Han YB, Lee JC, Lee S, Park HJ, Lee HJ, Kim KH. Isoamericanoic Acid B from Acer tegmentosum as a Potential Phytoestrogen. Nutrients 2018; 10:nu10121915. [PMID: 30518114 PMCID: PMC6315828 DOI: 10.3390/nu10121915] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Revised: 11/20/2018] [Accepted: 11/28/2018] [Indexed: 12/25/2022] Open
Abstract
Phytoestrogens derived from plants have attracted the attention of the general public and the medical community due to their potentially beneficial role in relieving menopausal symptoms. The deciduous tree Acer tegmentosum Maxim (Aceraceae) has long been utilized in Korean folk medicine to alleviate many physiological disorders, including abscesses, surgical bleeding, and liver diseases. In order to explore structurally and/or biologically new constituents from Korean medicinal plants, a comprehensive phytochemical study was carried out on the bark of A. tegmentosum. One new phenolic compound with a 1,4-benzodioxane scaffold, isoamericanoic acid B (1), as well as with nine known phenolic compounds (2–10), were successfully isolated from the aqueous extracts of the bark of A. tegmentosum. A detailed analysis using 1D and 2D NMR spectroscopy, electronic circular dichroism (ECD) spectral data, and LC/MS afforded the unambiguous structural determination of all isolated compounds, including the new compound 1. In addition, compounds 2, 4, 5, and 9 were isolated and identified from the bark of A. tegmentosum for the first time. All isolated compounds were tested for their estrogenic activities using an MCF-7 BUS cell proliferation assay, which revealed that compounds 1, 2, and 10 showed moderate estrogenic activity. To study the mechanism of this estrogenic effect, a docking simulation of compound 1, which showed the best estrogenic activity, was conducted with estrogen receptor (ER) -α and ER-β, which revealed that it interacts with the key residues of ER-α and ER-β. In addition, compound 1 had slightly higher affinity for ER-β than ER-α in the calculated Gibbs free energy for 1:ER-α and 1:ER-β. Thus, the present experimental evidence demonstrated that active compound 1 from A. tegmentosum could be a promising phytoestrogen for the development of natural estrogen supplements.
Collapse
Affiliation(s)
- Seoung Rak Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| | - Yong Joo Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| | - Yu Bin Han
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| | - Joo Chan Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| | - Seulah Lee
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| | - Hyun-Ju Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| | - Hae-Jeung Lee
- Department of Food and Nutrition, Gachon University, Seongnam 13120, Korea.
| | - Ki Hyun Kim
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, Korea.
| |
Collapse
|
20
|
A Pilot Study for the Detection of Cyclic Prolyl-Hydroxyproline (Pro-Hyp) in Human Blood after Ingestion of Collagen Hydrolysate. Nutrients 2018; 10:nu10101356. [PMID: 30248982 PMCID: PMC6213548 DOI: 10.3390/nu10101356] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2018] [Revised: 09/17/2018] [Accepted: 09/20/2018] [Indexed: 12/22/2022] Open
Abstract
Levels of short linear hydroxyproline (Hyp)-containing peptides, such as prolyl-hydroxyproline (Pro-Hyp), increase in human blood after the ingestion of collagen hydrolysate, which has been associated with beneficial effects for human skin and joints. The present study demonstrates the presence of a novel food-derived collagen peptide, cyclic Pro-Hyp, in human blood after the ingestion of collagen hydrolysate. The cyclic Pro-Hyp levels in plasma samples were estimated by liquid chromatography mass spectrometry (LC-MS). Cyclic Pro-Hyp levels significantly increased in the plasma after ingestion of collagen hydrolysate, reaching a maximum level after 2 h and then decreasing. The maximum level of cyclic Pro-Hyp in plasma ranged from 0.1413 to 0.3443 nmol/mL, representing approximately 5% of linear Pro-Hyp in plasma after ingestion of collagen hydrolysate. Addition of cyclic Pro-Hyp in medium at 7 nmol/mL significantly enhanced the growth rate of mouse skin fibroblasts on collagen gel more extensively compared to linear Pro-Hyp.
Collapse
|
21
|
Natural Peptides in Drug Discovery Targeting Acetylcholinesterase. Molecules 2018; 23:molecules23092344. [PMID: 30217053 PMCID: PMC6225273 DOI: 10.3390/molecules23092344] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2018] [Revised: 09/06/2018] [Accepted: 09/12/2018] [Indexed: 12/16/2022] Open
Abstract
Acetylcholinesterase-inhibitory peptide has gained much importance since it can inhibit acetylcholinesterase (AChE) and increase the availability of acetylcholine in cholinergic synapses, enhancing cholinergic transmission in pharmacological treatment of Alzheimer’s disease (AD). Natural peptides have received considerable attention as biologically important substances as a source of AChE inhibitors. These natural peptides have high potential pharmaceutical and medicinal values due to their bioactivities as neuroprotective and neurodegenerative treatment activities. These peptides have attracted great interest in the pharmaceutical industries, in order to design potential peptides for use in the prophylactic and therapy purposes. Some natural peptides and their derivatives have high commercial values and have succeeded in reaching the pharmaceutical market. A large number of peptides are already in preclinical and clinical pipelines for treatment of various diseases. This review highlights the recent researches on the various natural peptides and future prospects for AD management.
Collapse
|
22
|
Meng XH, Zhu HT, Yan H, Wang D, Yang CR, Zhang YJ. C-8 N-Ethyl-2-pyrrolidinone-Substituted Flavan-3-ols from the Leaves of Camellia sinensis var. pubilimba. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7150-7155. [PMID: 29889511 DOI: 10.1021/acs.jafc.8b02066] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Camellia sinensis var. pubilimba, one variety of the genus Camellia sect. Thea (Theaceae), has been used for producing green tea mainly by the local people of its growing areas of Guangxi province, China. Forty compounds, including eight C-8 N-ethyl-2-pyrrolidinone-substituted flavan-3-ols (1-8) and their substituted unit N-ethyl-5-hydroxy-2-pyrrolidinone (9), four flavan-3-ol monomers (10-13) and one dimer (14), nine flavonoids (15-23), three hydrolyzable tannins (24-26), two lignans (27-28), 11 simple phenolics (29-39), and caffeine (40), were first isolated and identified from the leaves. Their structures were determined by detailed spectroscopic analysis and comparison with the literature data and authentic samples. Both 1 and 4 were obtained as a mixture of the N-ethyl-2-pyrrolidinone C-5 enantiomers (1a and 1b and 4a and 4b), respectively, while the resolution of another three pairs of enantiomers (2 and 3, 5 and 6, and 7 and 8) was achieved. Among them, 1b is a new compound whose NMR data together with its enantiomer (1a) were reported for the first time, while 2 and 3 are two new natural products. Most of the isolates exhibited significant antioxidant activities, stronger than ascorbic acid and trolox, while parts of the isolates, particularly C-8 N-ethyl-2-pyrrolidinone-substituted flavan-3-ols, showed obvious inhibitory effects on acetylcholinesterase (AChE). The results indicated that C. sinensis var. pubilimba is a valuable plant resource for tea production.
Collapse
Affiliation(s)
- Xiu-Hua Meng
- University of Chinese Academy of Sciences , Beijing 100049 , People's Republic of China
| | | | | | | | | | | |
Collapse
|
23
|
Li Q, Chai S, Li Y, Huang J, Luo Y, Xiao L, Liu Z. Biochemical Components Associated With Microbial Community Shift During the Pile-Fermentation of Primary Dark Tea. Front Microbiol 2018; 9:1509. [PMID: 30042750 PMCID: PMC6048958 DOI: 10.3389/fmicb.2018.01509] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 06/18/2018] [Indexed: 12/27/2022] Open
Abstract
Primary dark tea is used as raw material for compressed dark tea, such as Fu brick tea, Hei brick tea, Hua brick tea, and Qianliang tea. Pile-fermentation is the key process for the formation of the characteristic properties of primary dark tea, during which the microorganism plays an important role. In this study, the changes of major chemical compounds, enzyme activities, microbial diversity, and their correlations were explored during the pile-fermentation process. Our chemical and enzymatic analysis showed that the contents of the major compounds were decreased, while the activities of polyphenol oxidase, cellulase, and pectinase were increased during this process, except peroxidase activity that could not be generated from microbial communities in primary dark tea. The genera Cyberlindnera, Aspergillus, Uwebraunia, and Unclassified Pleosporales of fungus and Klebsiella, Lactobacillus of bacteria were predominant in the early stage of the process, but only Cyberlindnera and Klebsiella were still dominated in the late stage and maintained a relatively constant until the end of the process. The amino acid was identified as the important abiotic factor in shaping the microbial community structure of primary dark tea ecosystem. Network analysis revealed that the microbial taxa were grouped into five modules and seven keystone taxa were identified. Most of the dominant genera were mainly distributed into module III, which indicated that this module was important for the pile-fermentation process of primary dark tea. In addition, bidirectional orthogonal partial least squares (O2PLS) analysis revealed that the fungi made more contributions to the formation of the characteristic properties of primary dark tea than bacteria during the pile-fermentation process. Furthermore, 10 microbial genera including Cyberlindnera, Aspergillus, Eurotium, Uwebraunia, Debaryomyces, Lophiostoma, Peltaster, Klebsiella, Aurantimonas, and Methylobacterium were identified as core functional genera for the pile-fermentation of primary dark tea. This study provides useful information for improving our understanding on the formation mechanism of the characteristic properties of primary dark tea during the pile-fermentation process.
Collapse
Affiliation(s)
- Qin Li
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China.,Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha, China.,National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China.,Collaborative Innovation Centre of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Shuo Chai
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
| | - Yongdi Li
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China
| | - Jianan Huang
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China.,Collaborative Innovation Centre of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Yu Luo
- Institute of Soil and Water Resources and Environmental Sciences, Zhejiang University, Hangzhou, China
| | - Lizheng Xiao
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China.,National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| | - Zhonghua Liu
- Key Laboratory of Tea Science of Ministry of Education, Hunan Agricultural University, Changsha, China.,Hunan Provincial Key Laboratory of Crop Germplasm Innovation and Utilization, Hunan Agricultural University, Changsha, China.,National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China.,Collaborative Innovation Centre of Utilization of Functional Ingredients from Botanicals, Hunan Agricultural University, Changsha, China
| |
Collapse
|
24
|
Ye F, Cai MH, Chen B, Xiao W, Li XW, Guo YW. Absolute Configuration of (2R,3R,6S,8R)-Methyl Homononactate, a Polyketide from Actinomycetes Streptomyces sp. R-527F of the Arctic Region. Chem Nat Compd 2018. [DOI: 10.1007/s10600-018-2488-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
25
|
Wang Z, Peng AH, Lu DD, Song YJ, Wang CL, Xie WD. Manumycin-type Derivatives from a Streptomyces sp. Associated with Meson Bee Osmia cornifrons. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300605] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Two new manumycin-type derivatives named as cornifronin A and cornifronin B, and one known analogue antibiotic SW-B were isolated from the liquid fermentation of Streptomyces sp. OC1401 obtained from body surface of a meson bee Osmia cornifrons. The structures of all isolates were identified by spectroscopic methods (HRESIMS, IR, 1D and 2D NMR) and comparison with literature data. The antibacterial and antifungal activities of these manumycin-type derivatives were evaluated by disc diffusion method and more accurate data on the antibacterial activity were obtained through the MIC (Minimum Inhibitory Concentration) and MBC (Minimal bactericidal concentration) values.
Collapse
Affiliation(s)
- Zhe Wang
- Department of Pharmacy, College of Marine Science, Shandong University at Weihai, Weihai 264209, P. R. China
| | - Ai-Hong Peng
- Department of Pharmacy, College of Marine Science, Shandong University at Weihai, Weihai 264209, P. R. China
| | - Dan-Dan Lu
- Department of Pharmacy, College of Marine Science, Shandong University at Weihai, Weihai 264209, P. R. China
| | - Ya-Jie Song
- Department of Pharmacy, College of Marine Science, Shandong University at Weihai, Weihai 264209, P. R. China
| | - Cheng-Lei Wang
- Department of Pharmacy, College of Marine Science, Shandong University at Weihai, Weihai 264209, P. R. China
| | - Wei-Dong Xie
- Department of Pharmacy, College of Marine Science, Shandong University at Weihai, Weihai 264209, P. R. China
| |
Collapse
|
26
|
Antioxidative Potential of a Streptomyces sp. MUM292 Isolated from Mangrove Soil. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4823126. [PMID: 29805975 PMCID: PMC5899857 DOI: 10.1155/2018/4823126] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 01/27/2018] [Accepted: 02/20/2018] [Indexed: 11/17/2022]
Abstract
Mangrove derived microorganisms constitute a rich bioresource for bioprospecting of bioactive natural products. This study explored the antioxidant potentials of Streptomyces bacteria derived from mangrove soil. Based on 16S rRNA phylogenetic analysis, strain MUM292 was identified as the genus Streptomyces. Strain MUM292 showed the highest 16S rRNA gene sequence similarity of 99.54% with S. griseoruber NBRC12873T. Furthermore, strain MUM292 was also characterized and showed phenotypic characteristics consistent with Streptomyces bacteria. Fermentation and extraction were performed to obtain the MUM292 extract containing the secondary metabolites of strain MUM292. The extract displayed promising antioxidant activities, including DPPH, ABTS, and superoxide radical scavenging and also metal-chelating activities. The process of lipid peroxidation in lipid-rich product was also retarded by MUM292 extract and resulted in reduced MDA production. The potential bioactive constituents of MUM292 extract were investigated using GC-MS and preliminary detection showed the presence of pyrazine, pyrrole, cyclic dipeptides, and phenolic compound in MUM292 extract. This work demonstrates that Streptomyces MUM292 can be a potential antioxidant resource for food and pharmaceutical industries.
Collapse
|
27
|
Taga Y, Kusubata M, Ogawa-Goto K, Hattori S. Identification of Collagen-Derived Hydroxyproline (Hyp)-Containing Cyclic Dipeptides with High Oral Bioavailability: Efficient Formation of Cyclo(X-Hyp) from X-Hyp-Gly-Type Tripeptides by Heating. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:9514-9521. [PMID: 28988478 DOI: 10.1021/acs.jafc.7b03714] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Cyclic dipeptides (2,5-diketopiperazines) are present in a variety of foods and are reported to demonstrate antioxidant, antidepressant, and other beneficial effects. We recently developed a novel collagen hydrolysate characterized by a high content of X-hydroxyproline (Hyp)-Gly-type tripeptides using ginger protease. In the present study, we found that, through heating, X-Hyp-Gly can be easily converted into Hyp-containing cyclic dipeptides. After heating for 3 h at 85 °C and pH 4.8, Ala-Hyp-Gly was almost completely cyclized to cyclo(Ala-Hyp), in contrast to a slight cyclization of Ala-Hyp. The contents of cyclo(Ala-Hyp) and cyclo(Leu-Hyp) reached 0.5-1% (w/w) each in the ginger-degraded collagen hydrolysate under the heating conditions. Oral administration experiments using mice revealed that cyclo(Ala-Hyp) and cyclo(Leu-Hyp) were absorbed into the blood at markedly higher efficiencies compared to collagenous oligopeptides, including Pro-Hyp. The high productivity and oral bioavailability of the collagen-specific cyclic dipeptides suggest significant health benefits of the heat-treated ginger-degraded collagen hydrolysate.
Collapse
Affiliation(s)
- Yuki Taga
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara, Toride, Ibaraki 302-0017, Japan
| | - Masashi Kusubata
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara, Toride, Ibaraki 302-0017, Japan
| | - Kiyoko Ogawa-Goto
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara, Toride, Ibaraki 302-0017, Japan
| | - Shunji Hattori
- Nippi Research Institute of Biomatrix , 520-11 Kuwabara, Toride, Ibaraki 302-0017, Japan
| |
Collapse
|
28
|
Badral D, Odonbayar B, Murata T, Munkhjargal T, Tuvshintulga B, Igarashi I, Suganuma K, Inoue N, Brantner AH, Odontuya G, Sasaki K, Batkhuu J. Flavonoid and Galloyl Glycosides Isolated from Saxifraga spinulosa and Their Antioxidative and Inhibitory Activities against Species That Cause Piroplasmosis. JOURNAL OF NATURAL PRODUCTS 2017; 80:2416-2423. [PMID: 28832147 DOI: 10.1021/acs.jnatprod.7b00142] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Eight new flavonoid-based 3'-O-β-d-glucopyranosides (1-8) and three new galloyl glucosides (9, 11, 12), were isolated from the aerial parts of Saxifraga spinulosa, along with 25 known compounds. The structures of the new compounds were elucidated by spectroscopic methods. Most of the isolated compounds exhibited potent DPPH radical-scavenging activities. Further, their inhibitory activities were evaluated against Babesia bovis, Babesia bigemina, Babesia caballi, and Theileria equi, protozoan parasites that cause piroplasmosis in livestock. The results indicated that several of these compounds showed growth-inhibitory effects on such organisms that cause piroplasmosis.
Collapse
Affiliation(s)
- Duger Badral
- School of Engineering and Applied Sciences, National University of Mongolia , Ulaanbaatar 14201, Mongolia
- Mongolian University of Pharmaceutical Sciences , Ulaanbaatar 18130, Mongolia
| | - Batsukh Odonbayar
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
| | - Toshihiro Murata
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
| | | | | | | | | | - Noboru Inoue
- Obihiro University of Agriculture and Veterinary Medicine , Inada, Obihiro, Hokkaido 080-8555, Japan
| | - Adelheid H Brantner
- Department of Pharmacognosy, Institute of Pharmaceutical Sciences, Karl-Franzens University , Graz 8010, Austria
| | - Gendaram Odontuya
- Natural Product Chemistry Laboratory, Institute of Chemistry and Chemical Technology, Mongolian Academy of Sciences , Ulaanbaatar 13330, Mongolia
| | - Kenroh Sasaki
- Department of Pharmacognosy, Tohoku Medical and Pharmaceutical University , Aoba-ku, Sendai 981-8558, Japan
| | - Javzan Batkhuu
- School of Engineering and Applied Sciences, National University of Mongolia , Ulaanbaatar 14201, Mongolia
| |
Collapse
|
29
|
Alberdi-Cedeño J, Ibargoitia ML, Guillén MD. Bioactive compounds detected for the first time in corn oil: Cyclic dipeptides and other nitrogenated compounds. J Food Compost Anal 2017. [DOI: 10.1016/j.jfca.2017.06.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
30
|
Lee W, Kim MA, Park I, Hwang JS, Na M, Bae JS. Novel direct factor Xa inhibitory compounds from Tenebrio molitor with anti-platelet aggregation activity. Food Chem Toxicol 2017; 109:19-27. [PMID: 28844963 DOI: 10.1016/j.fct.2017.08.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/07/2017] [Accepted: 08/21/2017] [Indexed: 11/24/2022]
Abstract
Tenebrio molitor is an edible insect that has antimicrobial, anticancer, and antihypertensive effects. The aim of this study was to identify the unreported bioactive compounds from T. molitor larvae with inhibitory activities against factor Xa (FXa) and platelet aggregation. Isolated compounds were evaluated for their anti-FXa and anti-platelet aggregation properties by monitoring clotting time, platelet aggregation, FXa activity, and thrombus formation. A diketopiperazine (1, cyclo(L-Pro-L-Tyr)) and a phenylethanoid (2, N-acetyltyramine) were isolated and inhibited the catalytic activity of FXa in a mixed inhibition model and inhibited platelet aggregation induced by adenosine diphosphate (ADP) and U46619. They inhibited ADP- and U46619-induced phosphorylation of myristoylated alanine-rich C kinase substrate (MARCKS) and the expression of P-selectin and PAC-1 in platelets. They also improved the production of nitric oxide and inhibited the oversecretion of endothelin-1 compared to that of the ADP- or U46619-treated group. In an animal model of arterial and pulmonary thrombosis, the isolated compounds showed enhanced antithrombotic effects. They also elicited anticoagulant effects in mice. Compounds 1-2 inhibited ADP-, collagen-, or U46619-induced platelet aggregation and showed similar anti-thrombotic efficacy to rivaroxaban, a positive control. Therefore, 1-2 could serve as candidates and provide scaffolds for the development of new anti-FXa and anti-platelet drugs.
Collapse
Affiliation(s)
- Wonhwa Lee
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Mi-Ae Kim
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Republic of Korea; Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun 55365, Republic of Korea
| | - InWha Park
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun 55365, Republic of Korea
| | - MinKyun Na
- College of Pharmacy, Chungnam National University, Daejeon 34134, Republic of Korea.
| | - Jong-Sup Bae
- College of Pharmacy, CMRI, Research Institute of Pharmaceutical Sciences, BK21 Plus KNU Multi-Omics based Creative Drug Research Team, Kyungpook National University, Daegu 41566, Republic of Korea.
| |
Collapse
|
31
|
Manchineella S, Voshavar C, Govindaraju T. Radical-Scavenging Antioxidant Cyclic Dipeptides and Silk Fibroin Biomaterials. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700597] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Shivaprasad Manchineella
- Bioorganic Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); 560064 Jakkur P. O., Bengaluru Karnataka India
| | - Chandrashekhar Voshavar
- Bioorganic Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); 560064 Jakkur P. O., Bengaluru Karnataka India
| | - Thimmaiah Govindaraju
- Bioorganic Chemistry Laboratory; New Chemistry Unit; Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR); 560064 Jakkur P. O., Bengaluru Karnataka India
| |
Collapse
|
32
|
Lee J, Hwang IH, Kim JH, Kim MA, Hwang JS, Kim YH, Na M. Quinoxaline-, dopamine-, and amino acid-derived metabolites from the edible insect Protaetia brevitarsis seulensis. Arch Pharm Res 2017; 40:1064-1070. [PMID: 28780757 DOI: 10.1007/s12272-017-0942-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2017] [Accepted: 07/31/2017] [Indexed: 10/19/2022]
Abstract
Edible insects have been reported to produce metabolites showing various pharmacological activities, recently emerging as rich sources of health functional food. In particular, the larvae of Protaetia brevitarsis seulensis (Kolbe) have been used as traditional Korean medicines for treating diverse diseases, such as breast cancer, inflammatory disease, hepatic cancer, liver cirrhosis, and hepatitis. However, only few chemical investigations were reported on the insect larvae. Therefore, the aim of this study was to discover and identify biologically active chemical components of the larvae of P. brevitarsis seulensis. As a result, a quinoxaline-derived alkaloid (1) was isolated, which was not reported previously from natural sources. In addition, other related compounds (2, 4-10, 15, 16) were also encountered for the first time from the larvae. The structures of all the isolated compounds were established mainly by analysis of HRESIMS, NMR, and electronic circular dichroism data. Compound 5 exhibited inhibition of tyrosinase with IC50 value of 44.8 µM.
Collapse
Affiliation(s)
- JungIn Lee
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - In Hyun Hwang
- College of Pharmacy, Woosuk University, Wanju-gun, Jeonbuk, 55338, Republic of Korea
| | - Jang Hoon Kim
- Korea Atomic Energy Research Institute, Jeongeup, Jeonbuk, 56212, Republic of Korea
| | - Mi-Ae Kim
- Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun, Jeonbuk, 55365, Republic of Korea
| | - Jae Sam Hwang
- Department of Agricultural Biology, The National Academy of Agricultural Science, RDA, Wanju-gun, Jeonbuk, 55365, Republic of Korea
| | - Young Ho Kim
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea
| | - MinKyun Na
- College of Pharmacy, Chungnam National University, Daejeon, 34134, Republic of Korea.
| |
Collapse
|
33
|
Padmathilake K, Bandara H, Qader MM, Kumar NS, Jayasinghe L, Masubuti H, Fujimoto Y. Talarofuranone, a New Talaroconvolutin Analog from the Endophytic Fungus Talaromyces purpurogenus from Pouteria campechiana Seeds. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701200406] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
An endophytic fungus Talaromyces purpurogenus was isolated from the seeds of the popular edible fruit Pouteria campechiana. The fungus was fermented in potato dextrose agar and the fungal media were extracted with EtOAc. Chromatographic separation of the EtOAc extracts over silica gel, Sephadex LH-20 and preparative thin layer chromatography furnished a furanone analogue of talaroconvolutin A, named talarofuranone (1), along with talaroconvolutin A (2), 4-hydroxyacetophenone, tyrosol and ergosterol. The structure of 1 was determined by comparing the NMR data with that of 2 and by HRFABMS.
Collapse
Affiliation(s)
| | - H.M.S.K.H. Bandara
- National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka
| | - M. Mallique Qader
- National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka
| | - N. Savitri Kumar
- National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka
| | - Lalith Jayasinghe
- National Institute of Fundamental Studies, Hantana Road, Kandy, Sri Lanka
| | - Hironori Masubuti
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| | - Yoshinori Fujimoto
- Department of Chemistry and Materials Science, Tokyo Institute of Technology, Meguro, Tokyo 152-8551, Japan
| |
Collapse
|
34
|
Borthwick AD, Da Costa NC. 2,5-diketopiperazines in food and beverages: Taste and bioactivity. Crit Rev Food Sci Nutr 2017; 57:718-742. [PMID: 25629623 DOI: 10.1080/10408398.2014.911142] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
2,5-Diketopiperazines (2,5-DKPs) have been found to occur in a wide range of food and beverages, and display an array of chemesthetic effects (bitter, astringent, metallic, and umami) that can contribute to the taste of a variety of foods. These smallest cyclic peptides also occur as natural products and have been found to display a variety of bioactivities from antibacterial, antifungal, to anthroprotective effects and have the potential to be used in the development of new functional foods. An overview of the synthesis of these small chiral molecules and their molecular properties is presented. The occurrence, taste, and bioactivity of all simple naturally occurring 2,5-DKPs to date have been reviewed and those found in food from yeasts, fungi, and bacteria that have been used in food preparation or contamination, as well as metabolites of sweeteners and antibiotics added to food are also reviewed.
Collapse
Affiliation(s)
| | - Neil C Da Costa
- b International Flavors & Fragrances, Inc. , Union Beach , New Jersey , USA
| |
Collapse
|
35
|
TNF-α and IL-6 inhibitory effects of cyclic dipeptides isolated from marine bacteria Streptomyces sp. Med Chem Res 2016. [DOI: 10.1007/s00044-016-1730-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
36
|
A new cyclic dipeptide penicimutide: the activated production of cyclic dipeptides by introduction of neomycin-resistance in the marine-derived fungus Penicillium purpurogenum G59. Arch Pharm Res 2016; 39:762-70. [DOI: 10.1007/s12272-016-0751-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2015] [Accepted: 04/23/2016] [Indexed: 10/21/2022]
|
37
|
Comprehensive two-dimensional gas chromatography coupled with time-of-flight mass spectrometry reveals the correlation between chemical compounds in Japanese sake and its organoleptic properties. J Biosci Bioeng 2016. [DOI: 10.1016/j.jbiosc.2015.06.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
38
|
Ma GH, Lin CW, Hung HY, Wang SY, Shieh PC, Wu TS. New Benzenoids from the Roots of Lindera aggregata. Nat Prod Commun 2015. [DOI: 10.1177/1934578x1501001229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Two new benzenoids, linderagatin A and B (1–2), were isolated from the roots of Lindera aggregata. Their structures were elucidated on the basis of 1D (1H, 13C) and 2D NMR (COSY, NOESY, HSQC and HMBC) spectra. Moreover, their absolute configurations were established from ECD spectra compared with previous reports.
Collapse
Affiliation(s)
- Guo-Hao Ma
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Che-Wei Lin
- Department of Chemistry, National Cheng Kung University, Tainan, 701, Taiwan
| | - Hsin-Yi Hung
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
| | - Sheng-Yang Wang
- Core Laboratory of Plant Metabolomics, Biotechnology Center and Department of Forestry, National Chung Hsing University, Kou Kung Road, Taichung 402, Taiwan
| | - Po-Chuen Shieh
- Department of Pharmacy, Tajen University, Pintung 907, Taiwan
| | - Tian-Shung Wu
- School of Pharmacy, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, 701, Taiwan
- Department of Pharmacy, Tajen University, Pintung 907, Taiwan
| |
Collapse
|
39
|
Yamamoto K, Hayashi M, Murakami Y, Araki Y, Otsuka Y, Kashiwagi T, Shimamura T, Ukeda H. Development of LC-MS/MS analysis of cyclic dipeptides and its application to tea extract. Biosci Biotechnol Biochem 2015; 80:172-7. [PMID: 26299992 DOI: 10.1080/09168451.2015.1075865] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
2,5-Diketopiperazines (DKPs), also called cyclic dipeptides, have been known to occur in various foods. Recently, DKPs have attracted attentions as bioactive components. There were some reports on analytical methods for DKPs, but the number of analyzed DKPs was only a part of all DKPs and the quantitative performance was not studied in detail. In this study, we selected 31 kinds of DKPs and developed a quantitative and simultaneous analytical method using LC-MS/MS. This method was applied to DKPs determination in Pu-erh tea, post-fermentation tea, and 18 kinds of DKPs were determined at concentration of 0.0017-0.11 ppm. As a result of spiked test, it was concluded that the developed method using LC-MS/MS was useful for estimating DKPs concentration in tea.
Collapse
Affiliation(s)
- Kenji Yamamoto
- a Faculty of Agriculture , Kochi University , Nankoku , Japan.,b Innovation Development Department , Suntory Global Innovation Center Ltd. , Osaka , Japan
| | - Miki Hayashi
- a Faculty of Agriculture , Kochi University , Nankoku , Japan
| | - Yuka Murakami
- c Quality Assurance Division , Suntory Business Expert Ltd. , Osaka , Japan
| | - Yoko Araki
- a Faculty of Agriculture , Kochi University , Nankoku , Japan
| | - Yuuki Otsuka
- a Faculty of Agriculture , Kochi University , Nankoku , Japan
| | | | | | - Hiroyuki Ukeda
- a Faculty of Agriculture , Kochi University , Nankoku , Japan
| |
Collapse
|
40
|
Hsiao Y, Cheng MJ, Chang HS, Wu MD, Hsieh SY, Liu TW, Lin CH, Yuan GF, Chen IS. Six new metabolites produced byColletotrichum aotearoa09F0161, an endophytic fungus isolated fromBredia oldhamii. Nat Prod Res 2015; 30:251-8. [DOI: 10.1080/14786419.2015.1054285] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
41
|
Guo Q, Wang Y, Lin S, Zhu C, Chen M, Jiang Z, Xu C, Zhang D, Wei H, Shi J. 4-Hydroxybenzyl-substituted amino acid derivatives from Gastrodia elata. Acta Pharm Sin B 2015; 5:350-7. [PMID: 26579466 PMCID: PMC4629276 DOI: 10.1016/j.apsb.2015.02.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2015] [Revised: 02/26/2015] [Accepted: 02/26/2015] [Indexed: 11/29/2022] Open
Abstract
Seven new 4-hydroxybenzyl-substituted amino acid derivatives (1−7), together with 11 known compounds, were isolated from an aqueous extract of the rhizomes of Gastrodia elata Blume. Their structures were determined by spectroscopic and chemical methods. Compounds 1−3 are pyroglutamate derivatives containing 4-hydroxybenzyl units at the N atom and 4−7 are the first examples of natural products with the 4-hydroxybenzyl unit linked via a thioether bond to 2-hydroxy-3-mercaptopropanoic acid (4−6) and 2-hydroxy-4-mercaptobutanoic acid (7), which would be biogenetically derived from cysteine and homocysteine, respectively. The structures of 1 and 2 were verified by synthesis, while the absolute configurations of 4, 5 and 7 were assigned using Mosher’s method based on the MPA determination rule of ΔδRS values. The known compound 4-(hydroxymethyl)-5-nitrobenzene-1,2-diol (8) exhibited activity against Fe2+-cysteine induced rat liver microsomal lipid peroxidation with IC50 values of 9.99×10−6 mol/L.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | | | | | - Jiangong Shi
- Corresponding author. Tel.: +86 10 83154789; fax: +86 10 63037757.
| |
Collapse
|
42
|
Zeng L, Jin H, Lu D, Yang X, Pan L, Cui H, He X, Qiu H, Qin B. Isolation and identification of chemical constituents from the bacteriumBacillussp. and their nematicidal activities. J Basic Microbiol 2015; 55:1239-44. [DOI: 10.1002/jobm.201400798] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Accepted: 03/25/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Liming Zeng
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
- University of Chinese Academy of Sciences; Beijing China
| | - Hui Jin
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
- Key Laboratory of Tobacco Diseases and Insect Pests Monitoring Controlling and Integrated Management; Institute of Tobacco Research; Chinese Academy of Agricultural Sciences; Qingdao China
| | - Dengxue Lu
- Institute of Biology; Gansu Academy of Sciences; Lanzhou China
| | - Xiaoyan Yang
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
| | - Le Pan
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
- University of Chinese Academy of Sciences; Beijing China
| | - Haiyan Cui
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
- University of Chinese Academy of Sciences; Beijing China
| | - Xiaofeng He
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
| | - Hongdeng Qiu
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
| | - Bo Qin
- Key Laboratory of Chemistry of Northwestern Plant Resources of CAS and Key Laboratory for Natural Medicine of Gansu Province; Lanzhou Institute of Chemical Physics; Chinese Academy of Sciences; Lanzhou China
| |
Collapse
|
43
|
Nagamine I, Sunagawa K, Kina T. Use of Awamori-pressed Lees and Tofu Lees as Feed Ingredients for Growing Male Goats. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2014; 26:1262-75. [PMID: 25049908 PMCID: PMC4093407 DOI: 10.5713/ajas.2012.12717] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2012] [Revised: 05/17/2013] [Accepted: 04/04/2013] [Indexed: 11/27/2022]
Abstract
Awamori is produced by fermenting steamed indica rice. Awamori-pressed lees is a by-product of the Awamori production process. Tofu lees is a by-product of the Tofu production process. Research was conducted to test if dried Awamori-pressed lees and Tofu lees can be used as a mixed feed ingredient for raising male goats. Eighteen male kids were divided into three groups of six animals (control feed group (CFG), Awamori-pressed lees mixed feed group (AMFG), Tofu lees mixed feed group (TMFG)). The CFG used feed containing 20% soybean meal as the main protein source, while the AMFG and TMFG used feed mixed with 20% dried Awamori-pressed lees or dried Tofu lees. The groups were fed mixed feed (volume to provide 100 g/d increase in body weight) and alfalfa hay cubes (2.0 kg/d) twice a day (10:00, 16:00). Klein grass hay and water was given ad libitum. Hay intake was measured at 10:00 and 16:00. Body weight and size measurements were taken once a month. At the end of the experiment, a blood sample was drawn from the jugular vein of each animal and the carcass characteristics, the physical and chemical characteristics of loin were analyzed. DCP and TDN intakes in AMFG and TMFG showed no significant difference to the CFG. Cumulative measurements of growth in body weight and size over the 10 mo period in the AMFG and TMFG were similar to the CFG. Blood parameter values were similar to those in normal goats. Dressing carcass weight and percentages, and total weight of meat in the AMFG were similar to that in the CFG, but smaller in the TMFG. The compressed meat juice ratio was higher in both the TMFG and AMFG than the CFG. While the fat in corn, Awamori-pressed lees, and Tofu lees contains more than 50% linoleic acid, the loin fat in both the AMFG and TMFG was very low in linoleic acid due to the increase in the content of oleic acid, stearic acid, and palmitic acid. This indicates that feeding on AMF and TMF does not inhibit hydrogenation by ruminal microorganisms. As in the CFG, the total essential and non-essential amino acids in the loin of the AMFG and TMFG were well balanced. Compared to the CFG, the AMFG and TMFG were high in taurine and carnosine. The results indicate dried Awamori-pressed lees and Tofu lees can be used as a feed ingredient for raising male goats.
Collapse
Affiliation(s)
- Itsuki Nagamine
- Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa, 903-0213, Japan
| | - Katsunori Sunagawa
- Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa, 903-0213, Japan
| | - Takashi Kina
- Faculty of Agriculture, University of the Ryukyus, 1 Senbaru, Nishihara-cho, Okinawa, 903-0213, Japan
| |
Collapse
|
44
|
Yan XT, Li W, Sun YN, Yang SY, Song GY, Kim YH. A New Furfural Diglycoside and Other Carbohydrate Derivatives from Fermented Beverage of Prunus mume Fruit. B KOREAN CHEM SOC 2014. [DOI: 10.5012/bkcs.2014.35.7.2162] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
45
|
Chemical constituents from the fruits of Forsythia suspensa and their antimicrobial activity. BIOMED RESEARCH INTERNATIONAL 2014; 2014:304830. [PMID: 24745011 PMCID: PMC3972829 DOI: 10.1155/2014/304830] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2013] [Revised: 02/06/2014] [Accepted: 02/09/2014] [Indexed: 11/17/2022]
Abstract
Lignans and phenylethanoid glycosides purified from Forsythia suspensa were reported to display various bioactivities in the previous literature, including the antimicrobial activity. Therefore, the present research is aimed to purify and identify the chemical constituents of the methanol extracts of fruits of F. suspensa. The methanol extracts of fruits of F. suspensa were fractionated and further purified with the assistance of column chromatography to afford totally thirty-four compounds. Among these isolates, 3 β -acetoxy-20 α -hydroxyursan-28-oic acid (1) was reported from the natural sources for the first time. Some of the purified principles were subjected to the antimicrobial activity examinations against Escherichia coli to explore new natural lead compounds.
Collapse
|
46
|
Zeng Q, Guan B, Cheng X, Wang C, Jin HZ, Zhang WD. Chemical constituents from Metasequoia glyptostroboides Hu et Cheng. BIOCHEM SYST ECOL 2013. [DOI: 10.1016/j.bse.2013.06.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
47
|
Nagamine I, Sunagawa K, Kishi T. Use of Awamori-pressed Lees and Tofu Lees as Feed Ingredients for Growing Female Goats. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2012; 25:1701-11. [PMID: 25049535 PMCID: PMC4094161 DOI: 10.5713/ajas.2012.12372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Revised: 09/19/2012] [Accepted: 09/03/2012] [Indexed: 11/27/2022]
Abstract
Okinawan Awamori is produced by fermenting steamed indica rice with black mold, yeast, and water. Awamori-pressed lees is a by-product of the Awamori production process. Tofu lees is a by-product of the Tofu production process. This research consisted of two experiments conducted to elucidate whether or not dried Awamori-pressed lees and Tofu lees can be used as a mixed feed ingredient for raising female goats. In experiment 1, digestion trials were conducted to ascertain the nutritive values of dried Awamori-pressed lees and dried Tofu lees for goats. The digestible crude protein (DCP) and total digestible nutrients (TDN) contents of dried Awamori-pressed lees and Tofu lees were 22.5%, 22.5% (DCP), and 87.2%, 94.4% (TDN) respectively. In experiment 2, 18 female goats (Japanese Saanen×Nubian, three months old, body weight 15.4±0.53 kg) were divided into three groups of six animals (control feed group (CFG), Awamori-pressed lees mixed feed group (AMFG), Tofu lees mixed feed group (TMFG)). The CFG control used feed containing 20% soybean meal as the main protein source, while the AMFG and TMFG treatments used feed mixed with 20% dried Awamori-pressed lees or dried Tofu lees. The groups were fed mixed feed (volume to provide 100 g/d increase in body weight) twice a day (10:00, 16:00). The klein grass hay and water was given ad libitum. The hay intake was measured at 08:00 and 16:00. Body weight and size measurements were taken once a month. At the end of the experiment, a blood sample was drawn from the jugular vein of each animal. The DCP and TDN intakes in AMFG and TMFG showed no significant difference to the CFG. Cumulative measurements of growth in body weight, withers height, chest depth, chest girth, and hip width over the 10 mo period in the AMFG and TMFG were similar to the CFG. By contrast, cumulative growth in body length and hip height in the AMFG and TMFG tended to be larger than the CFG. Cumulative growth in chest width in the AMFG was significantly larger (p<0.05) than the CFG. Blood parameter values were similar to those in normal goats reported by other scientists. The coats of the AMFG and TMFG animals looked shinier than the animals in the CFG. The results demonstrate that dried Awamori-pressed lees and Tofu lees can be used as a feed ingredient for the raising female goats.
Collapse
|
48
|
Liu YX, Ma SG, Wang XJ, Zhao N, Qu J, Yu SS, Dai JG, Wang YH, Si YK. Diketopiperazine Alkaloids Produced by the Endophytic Fungus Aspergillus fumigatus from the Stem of Erythrophloeum fordiiOliv. Helv Chim Acta 2012. [DOI: 10.1002/hlca.201100521] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
49
|
Furukawa T, Akutagawa T, Funatani H, Uchida T, Hotta Y, Niwa M, Takaya Y. Cyclic dipeptides exhibit potency for scavenging radicals. Bioorg Med Chem 2012; 20:2002-9. [DOI: 10.1016/j.bmc.2012.01.050] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2012] [Revised: 01/26/2012] [Accepted: 01/27/2012] [Indexed: 10/14/2022]
|
50
|
Shen Y, Zou J, Xie D, Ge H, Cao X, Dai J. Butyrolactone and Cycloheptanetrione from Mangrove-Associated Fungus Aspergillus terreus. Chem Pharm Bull (Tokyo) 2012; 60:1437-41. [DOI: 10.1248/cpb.c12-00616] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Yi Shen
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Key Laboratory of Biosynthesis of Natural Products, Ministry of Public Health, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Jianhua Zou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Key Laboratory of Biosynthesis of Natural Products, Ministry of Public Health, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Dan Xie
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Key Laboratory of Biosynthesis of Natural Products, Ministry of Public Health, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Hanlin Ge
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Key Laboratory of Biosynthesis of Natural Products, Ministry of Public Health, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Xiuping Cao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Key Laboratory of Biosynthesis of Natural Products, Ministry of Public Health, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College
| | - Jungui Dai
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines & Key Laboratory of Biosynthesis of Natural Products, Ministry of Public Health, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College
| |
Collapse
|