1
|
Minh TT, Toan HK, Anh HTL, Huong TT, Thao DT, Hoang VD. Chemical Constituents from the Leaves of Pachyrhizus erosus Collected in Vietnam. Chem Pharm Bull (Tokyo) 2021; 69:1136-1139. [PMID: 34719597 DOI: 10.1248/cpb.c21-00614] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A phytochemical investigation of methanol extract from leaves of Pachyrhizus erosus (L.) Urban, a leguminous shrub distributed in Vietnam and other tropical and subtropical countries led to the isolation of a new prenylated chalcone, erosusone (1) and a new megastigmane glycoside epimer, 3-episedumoside F1 (9), together with thirteen known compounds including flavonoids (2-6), a 3-benzoxepine lactone (7), a pyridine-4,5-diol derivative (8), megastigmanes and megastigmane glycosides (10-15). Their structures were elucidated by means of high resolution-electrospray ionization (HR-ESI)-MS, one dimensional (1D) and two-dimensional NMR (2D-NMR) spectroscopy as well as comparison with the data reported in the literature. The cytotoxic effects on LU-1 (lung carcinoma), HepG2 (hepatocellular carcinoma), and MCF7 (breast carcinoma) cell lines were assessed. Prenylated chalcones 1-2 and isoflavone 3 exhibited cytotoxicity against all tested cell lines with IC50 values ranging from 22.04 to 45.03 µM.
Collapse
Affiliation(s)
- Tran Thi Minh
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Ho Khanh Toan
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Hoang Thi Lan Anh
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Tran Thu Huong
- School of Chemical Engineering, Hanoi University of Science and Technology
| | - Do Thi Thao
- Institute of Biotechnology, Vietnam Academy of Science and Technology (VAST)
| | - Vu Dinh Hoang
- School of Chemical Engineering, Hanoi University of Science and Technology
| |
Collapse
|
2
|
Anh HTL, Kawata Y, Tam LT, Thom LT, Ha NC, Hien HTM, Thu NTH, Huy PQ, Hong DD. Biocharacteristics and draft genome sequence of Halomonas hydrothermalis C22, a pyruvate-producing halophilic bacterium isolated from a commercial Spirulina culture in Vietnam. Arch Microbiol 2020; 202:1043-1048. [PMID: 31974932 DOI: 10.1007/s00203-020-01811-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 11/24/2022]
Abstract
Halophilic bacteria are receiving increasing attention for industrial chemical production processes due to their unique properties. Herein, an alkaliphilic and halophilic bacterium was isolated from a commercial Spirulina culture at Nghe An province in Vietnam and found to secrete pyruvate. Pyruvate is widely used as a starting material in the industrial biosynthesis of pharmaceuticals, and is employed for production of crop protection agents, polymers, cosmetics, and food additives. Phenotypic and chemotaxonomic characterization, and the 16S rRNA gene sequence homology with Halomonas hydrothermalis strain DSM 15,725 (99.2%) predicted that the strain belongs to the Halomonas genus, thus we named this strain as H. hydrothermalis strain C22. We investigated the biocharacteristics and capacity of strain C22 and determined the draft genome sequence comprising 3,934,166 bp with a G + C content of 60.2% encoding 3,668 proteins, 58 tRNAs, 9 rRNAs, and 1 tmRNA. Maximal pyruvate secretion reached 51.1 g/l after 84 h of cultivation. The results will facilitate future studies on the genetic and metabolic diversity of halophilic bacteria and expand our understanding of important bioprocesses in this microorganism.
Collapse
Affiliation(s)
- Hoang Thi Lan Anh
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Yoshikazu Kawata
- Biomedical Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Osaka, Japan.
| | - Luu Thi Tam
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Thi Thom
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Cam Ha
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Minh Hien
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Ngo Thi Hoai Thu
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Pham Quang Huy
- School of Applied Biosciences, Kyungpook National University, Daegu, Korea
| | - Dang Diem Hong
- Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
- Thuyloi University, Hanoi, Vietnam.
- Graduate University of Science and Technology, VAST, Hanoi, Vietnam.
| |
Collapse
|
3
|
Hong DD, Anh HTL, Tam LT, Show PL, Leong HY. Effects of nanoscale zerovalent cobalt on growth and photosynthetic parameters of soybean Glycine max (L.) Merr. DT26 at different stages. ACTA ACUST UNITED AC 2019. [DOI: 10.1186/s42500-019-0007-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
4
|
Thu NTH, Anh HTL, Hien HTM, Ha NC, Tam LT, Khoi TX, Duc TM, Hong DD. Preparation and Evaluation of Cream Mask from Vietnamese Seaweeds. J Cosmet Sci 2019; 69:447-462. [PMID: 30806622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Seaweed is rich source of natural bioactive compounds that could be exploited as functional ingredient for cosmetic applications. The aim of this study was to evaluate the biochemical compositions and bioactivities of 10 seaweeds collected from coastal waters of Vietnam. The present study also prepared and evaluated cream mask from mixture of seaweeds extracted with water. The results showed that Caulerpa lentillifera, Sargassum crassifolium, Ulva reticulata, and Kappaphycus alvarezii are potential rich sources of protein, polysaccharide, carotenoids, and vitamins with high antibacterial, cell proliferation, moisture retention, and tyrosinase inhibitory activities. Physicochemical analysis of cream mask from a mixture of these seaweed extracts indicated that it is yellowish brown in color with a specific odor of seaweed, stable, and homogeneous for up to 12 months of storage, with a pH of 6.1, and high spread and adhesive abilities. No total aerobic mesophilic microorganisms, Staphylococcus aureus, Pseudomonas aeruginosa, Candida albicans, and heavy metals were detected in the seaweed mask cream. The seaweed cream mask was safe and caused no irritation to normal human skin, and it satisfied provisions of Circular No. 06/2011/TT-BYT dated January 25, 2011 of the Vietnam Ministry of Health, providing cosmetic management for the cosmetic products with anti-aging and moisturizing effects.
Collapse
Affiliation(s)
- Ngo Thi Hoai Thu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| | - Hoang Thi Lan Anh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| | - Hoang Thi Minh Hien
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| | - Nguyen Cam Ha
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| | - Luu Thi Tam
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| | - Tran Xuan Khoi
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| | - Tran Mai Duc
- Nha Trang Institute of Technology Research and Application, Vietnam Academy of Science and Technology, Nha Trang, Vietnam (T.M.D.)
| | - Dang Diem Hong
- Institute of Biotechnology, Vietnam Academy of Science and Technology, Hanoi, Vietnam (N.T.H.T., H.T.L.A., H.T.M.H., N.C.H., L.T.T., T.X.K., D.D.H.)
| |
Collapse
|
5
|
Hoang MH, Nguyen C, Pham HQ, Van Nguyen L, Hoang Duc L, Van Son L, Hai TN, Ha CH, Nhan LD, Anh HTL, Thom LT, Quynh HTH, Ha NC, Van Nhat P, Hong DD. Transcriptome sequencing and comparative analysis of Schizochytrium mangrovei PQ6 at different cultivation times. Biotechnol Lett 2016; 38:1781-9. [PMID: 27395062 DOI: 10.1007/s10529-016-2165-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2016] [Accepted: 06/23/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVE The heterotrophic marine microalga, Schizochytrium mangrovei PQ6, synthesizes large amounts of polyunsaturated fatty acids (PUFAs) with possible nutritional applications. We characterized the transcriptome of S. mangrovei PQ6, focusing on lipid metabolism pathways throughout growth. RESULT Cell growth, total lipid, and docosahexaenoic acid (DHA, 22:6n-3) contents of S. mangrovei PQ6 in 500 ml batch cultures rapidly increased on day 1 in cultivation and reached their maximum levels on day 5. Maximum lipid accumulation in 500 ml batch cultures occurred on day 5, with total lipid and DHA contents reaching 33.2 ± 1.25% of dry cell weight (DCW) and 136 mg/g DCW, respectively. 11,025 unigenes, 28,617 unigenes and 18,480 unigenes from the transcriptomes of samples collected on day 1, 3, and 5 in cultivation were identified, respectively. These unigenes of the three samples were further assembled into 30,782 unigenes with an average size of 673 bp and N50 of 950 bp, and a total of 9,980 unigenes were annotated in public protein databases. 93 unigenes involved in lipid metabolism in which expression patterns corresponded with total lipid and DHA accumulation patterns were identified. CONCLUSION The possible roles of PUFAs pathways, such as those mediated by fatty acid synthase, polyketide synthase, and desaturase/elongase, co-exist in S. mangrovei PQ6.
Collapse
Affiliation(s)
- Minh Hien Hoang
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Cuong Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Huy Quang Pham
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Lam Van Nguyen
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Hoang Duc
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Van Son
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Truong Nam Hai
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Chu Hoang Ha
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Lam Dai Nhan
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Lan Anh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Le Thi Thom
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Huong Quynh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Cam Ha
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Pham Van Nhat
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Dang Diem Hong
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
| |
Collapse
|
6
|
Nogami R, Tam LT, Anh HTL, Quynh HTH, Thom LT, Nhat PV, Thu NTH, Hong DD, Wakisaka M. Growth promotion effect of steelmaking slag onSpirulina platensis. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1742-6596/704/1/012019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
7
|
Hoang MH, Ha NC, Thom LT, Tam LT, Anh HTL, Thu NTH, Hong DD. Extraction of squalene as value-added product from the residual biomass of Schizochytrium mangrovei PQ6 during biodiesel producing process. J Biosci Bioeng 2014; 118:632-9. [DOI: 10.1016/j.jbiosc.2014.05.015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2014] [Revised: 05/19/2014] [Accepted: 05/20/2014] [Indexed: 10/25/2022]
|
8
|
Hong DD, Mai DTN, Thom LT, Ha NC, Lam BD, Tam LT, Anh HTL, Thu NTH. Biodiesel production from Vietnam heterotrophic marine microalga Schizochytrium mangrovei PQ6. J Biosci Bioeng 2013; 116:180-5. [DOI: 10.1016/j.jbiosc.2013.02.002] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/08/2013] [Accepted: 02/04/2013] [Indexed: 11/24/2022]
|
9
|
Tam LT, Hoang DD, Ngoc Mai DT, Hoai Thu NT, Lan Anh HT, Hong DD. Study on the effect of salt concentration on growth and Astaxanthin accumulation of microalgae Haematococcus pluvialis as the initial basis for two phase culture of astaxanthin production. ACTA ACUST UNITED AC 2012. [DOI: 10.15625/0866-7160/v34n2.964] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
10
|
Hong DD, Anh HTL, Thu NTH. STUDY ON BIOLOGICAL CHARACTERISTICS OF HETEROTROPHIC MARINE MICROALGA-SCHIZOCHYTRIUM MANGROVEI PQ6 ISOLATED FROM PHU QUOC ISLAND, KIEN GIANG PROVINCE, VIETNAM(1). J Phycol 2011; 47:944-954. [PMID: 27020029 DOI: 10.1111/j.1529-8817.2011.01012.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Schizochytrium sp. PQ6, a heterotrophic microalga isolated from Phu Quoc (PQ) Island in the Kien Giang province of Vietnam, contains a high amount of docosahexaenoic acid (DHA, C22:6n-3). In this study, the culture conditions are developed to maximize biomass and DHA production. Nucleotide sequence analysis of partial 18S rRNA gene from genomic DNA showed that PQ6 has a phylogenetic relationship close to Schizochytrium mangrovei Raghu-Kumar. The highest growth rate and DHA accumulation of this strain were obtained in 6.0% glucose, 1.0% yeast extract, 50% artificial seawater (ASW), and pH 7 at 28°C. In addition, carbon and nitrogen sources could be replaced by glycerol, ammonium acetate, sodium nitrate, or fertilizer N-P-K. Total lipid content reached 38.67% of dry cell weight (DCW), in which DHA and eicosapentaenoic acid (EPA, C20:5n-3) contents accounted for 43.58% and 0.75% of the total fatty acid (TFA), respectively. In 5 and 10 L fermenters, the cell density, DCW, total lipid content, and maximum DHA yield were 46.50 × 10(6) cells · mL(-1) , 23.7 g · L(-1) , 38.56% of DCW, and 8.71 g · L(-1) (in 5 L fermenter), respectively, and 49.71 × 10(6) cells · mL(-1) , 25.34 g · L(-1) , 46.23% of DCW, and 11.55 g · L(-1) (in 10 L fermenter), respectively. Biomass of PQ6 strain possessed high contents of Na, I, and Fe (167.185, 278.3, and 43.69 mg · kg(-1) DCW, respectively). These results serve as a foundation for the efficient production of PQ6 biomass that can be used as a food supplement for humans and aquaculture in the future.
Collapse
Affiliation(s)
- Dang Diem Hong
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, Vietnam
| | - Hoang Thi Lan Anh
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, Vietnam
| | - Ngo Thi Hoai Thu
- Institute of Biotechnology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay, Hanoi, Vietnam
| |
Collapse
|