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Cheng C, Park SC, Giri SS. Effect of Pandanus tectorius extract as food additive on oxidative stress, immune status, and disease resistance in Cyprinus carpio. Fish Shellfish Immunol 2022; 120:287-294. [PMID: 34883255 DOI: 10.1016/j.fsi.2021.12.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Revised: 11/30/2021] [Accepted: 12/05/2021] [Indexed: 06/13/2023]
Abstract
The present study investigated the effect of Pandanus tectorius (PT) extract on Cyprinus carpio growth, antioxidant capacity, immunological and oxidative stress, immune-related gene expression, and resistance against pathogen challenge. Fish (average weight: 12.18 ± 0.32 g) were fed with diets containing various concentration (g kg-1) of PT extract: 0 g (basal diet), 5 g [PT5], 10 g [PT10], 20 g [PT20], and 30 g [PT30] for 8 weeks. Our results revealed an increase (p < 0.05) in the final weight gain only in the PT20 (63.12 ± 1.4 g) group. Activity of liver antioxidant parameters such as catalase (CAT) (27.67 ± 1.12 U mg protein-1), superoxide dismutase (SOD) (13.17 ± 0.428 U mg protein-1), and glutathione peroxidase (GPx) (47.14 ± 1.47 U mg protein-1) was highest in the PT20 group. Among the serum immunological parameters examined, lysozyme (37.45 ± 0.67 U mL-1), alternative complement pathway (133.22 ± 1.92 U mL-1), and phagocytic activities (25.68 ± 0.93%) were high (p < 0.05) in PT20, whereas there was no significant effect on serum immunoglobulin or total protein levels, compared to the control. Serum alanine aminotransferase (ALT), aspartate aminotransferase (AST), and malondialdehyde (MDA) levels were found to be lower (p < 0.05) in the PT20 and PT30 groups than those in the control. However, myeloperoxidase (MPO) levels were significantly higher (p < 0.05) in the PT20 and PT30 groups. Gene expression analysis revealed that mRNA expressions of antioxidant genes (SOD, CAT, nuclear factor erythroid 2-related factor 2) and anti-inflammatory cytokine (IL-10) genes were significantly upregulated in the PT10 - PT30 groups, except for the SOD gene in PT10. Conversely, the signalling molecule NF-κBp65 was downregulated in PT20 and PT30. Expression of Toll-like receptor 22 (TLR22) and hepcidin was significantly upregulated in PT20 and PT30, respectively. Fish in the PT20 group exhibited highest relative post-challenge survival (70.37%) against Aeromonas hydrophila challenge. The results of the present study suggest that dietary supplementation of P. tectorius extract at 20 g kg-1 can significantly improve weight gain, serum antioxidant parameters, strengthen immunity, and increase the disease resistance of C. carpio. Therefore, P. tectorius extract could be exploited for its use as a food additive in aquaculture.
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Affiliation(s)
- Chi Cheng
- Laboratory of Aquatic Nutrition and Ecology, College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, 210095, China
| | - Se Chang Park
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea.
| | - Sib Sankar Giri
- Laboratory of Aquatic Biomedicine, College of Veterinary Medicine and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea.
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Anirudhan A, Okomoda VT, Mimi Iryani MT, Andriani Y, Abd Wahid ME, Tan MP, Danish-Daniel M, Wong LL, Tengku-Muhammad TS, Mok WJ, Sorgeloos P, Sung YY. Pandanus tectorius fruit extract promotes Hsp70 accumulation, immune-related genes expression and Vibrio parahaemolyticus tolerance in the white-leg shrimp Penaeus vannamei. Fish Shellfish Immunol 2021; 109:97-105. [PMID: 33352338 DOI: 10.1016/j.fsi.2020.12.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 12/12/2020] [Accepted: 12/17/2020] [Indexed: 05/27/2023]
Abstract
Plants and herbal extracts are indispensable for controlling the spread of disease-causing bacteria, including those that infect aquatic organisms used in aquaculture. The use of plant or herbal extract is expected to be safe for aquatic animals and less harmful to the environment, as opposed to conventional therapeutic alternatives such as antibiotics that promote the occurrence of potential antibiotic-resistant bacteria when used improperly. The efficacy of Pandanus tectorius fruit extract in the regulation of Hsp70 expression, pro-phenoloxidase (ProPO), peroxinectin, penaeidin, crustin and transglutaminase, all immune peptides essential for Vibrio tolerance in white leg shrimp, Penaeus vannamei, was investigated in this study, which included the determination of the safety levels of the extract. Tolerance of shrimp against Vibrio parahaemolyticus, a pathogenic bacteria that causes Acute Hepatopancreas Necrosis Disease (AHPND), was assessed on the basis of median lethal dose challenge survival (LD50 = 106 cells/ml). Mortality was not observed 24 h after exposure of 0.5-6 g/L of the fruit extract, indicating that P. tectorius was not toxic to shrimp at these concentrations. A 24-h incubation of 2-6 g/L of the fruit extract increased shrimp tolerance to V. parahaemolyticus, with survival doubled when the maximum dose tested in this study was used. Concomitant with a rise in survival was the increase in immune-related proteins, with Hsp70, ProPO, peroxinectin, penaeidin, crustin and transglutaminase increased 10, 11, 11, 0.4, 8 and 13-fold respectively. Histological examination of the hepatopancreas and muscle tissues of Vibrio-infected shrimp primed with P. tectorius extract revealed reduced signs of histopathological degeneration, possibly due to the accumulation of Hsp70, a molecular chaperone crucial to cellular protein folding, tissue repair and immune response of living organisms, including Penaeid shrimp.
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Affiliation(s)
- Anupa Anirudhan
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Victor Tosin Okomoda
- Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Mat Taib Mimi Iryani
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Yosie Andriani
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Mohd Effendy Abd Wahid
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Min Pau Tan
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Muhd Danish-Daniel
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Faculty of Fisheries and Food Science, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Li Lian Wong
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | | | - Wen Jye Mok
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia
| | - Patrick Sorgeloos
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Laboratory of Aquaculture and Artemia Reference Center, Department of Animal Sciences and Aquatic Ecology, Campus Coupure - Blok F, Ghent University, Coupure Links 653, B-9000 Gent, Belgium
| | - Yeong Yik Sung
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia; Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, Malaysia.
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Wu C, Tian Y, Yu J, Zhang R, Zhang X, Guo P. The pandanus tectorius fruit extract (PTF) modulates the gut microbiota and exerts anti-hyperlipidaemic effects. Phytomedicine 2019; 58:152863. [PMID: 30836215 DOI: 10.1016/j.phymed.2019.152863] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/08/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The gut microbiota plays a key role in the maintenance of human health and mediates the beneficial effects of natural products including polyphenols. Previous studies have demonstrated that the polyphenol-rich Pandanus tectorius fruit extract (PTF) was effective in ameliorating high-fat diet (HFD)-induced hyperlipidaemia, and polyphenols can significantly change the structure of the gut microbiota. PURPOSE In this study, we assessed whether the modulation of the gut microbiota plays a key role in the PTF-induced anti-hyperlipidaemic effects. METHODS Male C57BL/6 J mice were induced with hyperlipidaemia by consuming a high-fat diet (HFD) for 4 weeks. Then, the mice were orally administered PTF, antibiotics (ampicillin+ norfloxacin), PTF+antibiotics or vehicle for another 6 weeks. Body weights and 24-h food intake were assessed weekly. At the end of the experiment, fresh stools were collected for 16S RNA pyrosequencing, and blood and liver and fat tissue were collected for pharmacological analysis. RESULTS PTF was effective in ameliorating high-fat diet (HFD)-induced hyperlipidaemia and significantly changed the structure of the gut microbiota. However, the anti-hyperlipidaemic effect of PTF was not influenced by the co-treatment with antibiotics (ampicillin+norfloxacin). A microbiological analysis of the gut microbiotas revealed that PTF selectively enhanced the relative abundance of Lactobacillus and decreased the relative abundance of Bacteroides and Alistipes. A correlation analysis between biochemical indexes and individual taxon showed that Lactobacillus was negatively associated with serum lipids and glucose while Bacteroides and Alistipes were positively associated with serum lipids and glucose. The modulatory effect of PTF on Lactobacillus, Bacteroides and Alistipes was not disturbed by the administration of antibiotics. CONCLUSION These results demonstrated that the polyphenol-rich PTF as a unique gut microbiota modulating agent and highlighted the richness of Lactobacillus and the decreased abundance of Bacteroides and Alistipes as an effective indicator of the therapeutic effect of medicinal foods on hyperlipidaemia.
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Affiliation(s)
- Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
| | - Yu Tian
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Jiaqi Yu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Rong Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Xiaopo Zhang
- School of Pharmaceutical Science, Hainan Medical University, Hainan 571199, PR China
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
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Awad E, Austin D, Lyndon A, Awaad A. Possible effect of hala extract (Pandanus tectorius) on immune status, anti-tumour and resistance to Yersinia ruckeri infection in rainbow trout (Oncorhynchus mykiss). Fish Shellfish Immunol 2019; 87:620-626. [PMID: 30753919 DOI: 10.1016/j.fsi.2019.02.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Revised: 02/06/2019] [Accepted: 02/08/2019] [Indexed: 06/09/2023]
Abstract
The possible effect of dietary administration of hala extract (Pandanus tectorius) on rainbow trout (Oncorhynchus mykiss) immune status as well as its effect as an anti-tumour agent was studied. Fish were divided into 4 groups before feeding with commercial diet (0%, control; 0.5%, 1% and 2% of hala extract) for 2 weeks. The effect of diet on the humoral immune parameters, ie total protein, myeloperoxidase content, antiproteases, lysozyme and bactericidal activities were studied. Also, the effect of the diets on the expression of some immune-related genes in rainbow trout head-kidney (TNF, LYZ2, IL-8 and CD-4) as well as tumour suppressor gene (WT-1a) was investigated. At the end of the feeding trial fish groups were challenged with Yersinia ruckeri. The results demonstrated enhancement in all the immune parameters in fish fed hala extract diets compared to control fish especially with the highest dose (2%) which recorded the highest significant increase (p < 0.05) in some parameters (total protein, myeloperoxidase content, antiproteases, and bactericidal activities) compared to the control. The results obtained from challenge with Y. ruckeri revealed reduction in the mortalities in fish groups fed with 1% and 2% doses of hala extract. Feeding with hala extract provoked upregulation in all immune- related genes. Again, the highest dose of hala extract showed a significant upregulation in WT1a expression (p < 0.05). The current study suggest that the hala extract, especially the highest dose, could be considered a good food additive to improve the immune status, resist tumour formation and to resist or control infectious diseases of rainbow trout.
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Affiliation(s)
- Elham Awad
- Institute of Life and Earth Sciences, Heriot-Watt University, Edinburgh, UK; Department of Hydrobiology, National Research Center, Cairo, Egypt.
| | - Dawn Austin
- Institute of Life and Earth Sciences, Heriot-Watt University, Edinburgh, UK
| | - Alastair Lyndon
- Institute of Life and Earth Sciences, Heriot-Watt University, Edinburgh, UK
| | - Amani Awaad
- Pharmacognosy Department, College of Pharmacy, Salman Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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Kirisattayakul W, Wattanathorn J, Iamsaard S, Jittiwat J, Suriharn B, Lertrat K. Neuroprotective and Memory-Enhancing Effect of the Combined Extract of Purple Waxy Corn Cob and Pandan in Ovariectomized Rats. Oxid Med Cell Longev 2017; 2017:5187102. [PMID: 28770022 PMCID: PMC5523472 DOI: 10.1155/2017/5187102] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Accepted: 06/01/2017] [Indexed: 11/17/2022]
Abstract
The neuroprotectant and memory enhancer supplement for menopause is required due to the side effects of hormone replacement therapy. Since purple waxy corn cob and pandan leaves exert antioxidant and acetylcholinesterase inhibition (AChEI) effects, we hypothesized that the combined extract of both plants (PCP) might provide synergistic effect leading to the improved brain damage and memory impairment in experimental menopause. To test this hypothesis, female Wistar rats were ovariectomized bilaterally and orally given various doses of the functional drink at doses of 20, 40, and 80 mg/kg for 28 days. The animals were assessed nonspatial memory using object recognition test every 7 days throughout the study period. At the end of study, they were assessed with oxidative stress status, AChEI, neuron density, and ERK1/2 signal in the prefrontal cortex (PFC). Interestingly, all doses of PCP increased object recognition memory and neuron density but decreased oxidative stress status in PFC. Low dose of PCP also decreased AChE activity while medium dose of PCP increased phosphorylation of ERK1/2 in PFC. Therefore, the improved oxidative stress status and cholinergic function together with signal transduction via ERK in PFC might be responsible for the neuroprotective and memory-enhancing effects of PCP.
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Affiliation(s)
- Woranan Kirisattayakul
- Department of Physiology and Graduate School (Neuroscience Program), Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
- Integrative Complementary Alternative Medicine Research and Development Center, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jintanaporn Wattanathorn
- Integrative Complementary Alternative Medicine Research and Development Center, Khon Kaen University, Khon Kaen 40002, Thailand
- Department of Physiology, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Sittichai Iamsaard
- Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Jinatta Jittiwat
- Faculty of Medicine, Mahasarakham University, Maha Sarakham 44150, Thailand
| | - Bhalang Suriharn
- Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
| | - Kamol Lertrat
- Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand
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Aganda KCC, Nonato MG, Sevilla F, Santiago KS. Headspace Fourier transform infrared spectroscopy for the differentiation of Pandanus species. Talanta 2017; 164:439-444. [PMID: 28107954 DOI: 10.1016/j.talanta.2016.05.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 01/19/2016] [Revised: 05/02/2016] [Accepted: 05/03/2016] [Indexed: 11/19/2022]
Abstract
Headspace Fourier Transform Infrared Spectroscopy (HS-FTIR) in tandem with chemometrics was applied to differentiate several species of the genus Pandanus. The headspace was generated from each Pandanus sample after incubation in a tightly sealed sample chamber. The resulting FTIR spectra of the headspace samples were found to be almost similar, but the application of principal component analysis (PCA) effectively differentiated the species. The unique spectral features for some samples were highlighted in the second-derivative FTIR spectra. A higher variance was exhibited in the PCA bi-plot of the 2nd derivative spectral data. The principal components differentiated not only the species, but also the cultivars or varieties, which formed distinct but proximate clusters. The manner of clustering obtained in this study resembled the behavior reported in a Random Amplified Polymorphic DNA analysis conducted on the Pandanus samples. The results demonstrate the potential of headspace FTIR spectroscopy as a simple, rapid, non-destructive, and relatively inexpensive method to discriminate between plant species and varieties.
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Affiliation(s)
- Kim Christopher C Aganda
- Graduate School, and Research Center for Natural and Applied Sciences, University of Santo Tomas, España Blvd., Sampaloc, Manila, 1015 Philippines
| | - Maribel G Nonato
- Graduate School, and Research Center for Natural and Applied Sciences, University of Santo Tomas, España Blvd., Sampaloc, Manila, 1015 Philippines
| | - Fortunato Sevilla
- Graduate School, and Research Center for Natural and Applied Sciences, University of Santo Tomas, España Blvd., Sampaloc, Manila, 1015 Philippines
| | - Karen S Santiago
- Graduate School, and Research Center for Natural and Applied Sciences, University of Santo Tomas, España Blvd., Sampaloc, Manila, 1015 Philippines.
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Loa IW, Cheng YB, Haung CC, Hwang TL, Wu CC, Liou JR, Hou MF, Yuan SS, Chang FR, Wu YC. Constituents of the Leaves of Pandanus utilis. Nat Prod Commun 2016; 11:173-176. [PMID: 27032193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
Nineteen compounds, including seven triterpenoids (1-7), five steroids (8-12), four cyclohexenone derivatives (13-16), two benzenoid glycosides (17 and 18) and one lignan (19), were isolated and separated from the leaves of Pandanus utilis through bioactivity-guided fractionation. Among them, one new lanosterol- type triterpenoid was found and named as (24R)-24-methyl-5a-4-demethyllanosta-9(11),25-dien-3β-ol (1). The structures of the isolates were determined by mass and spectroscopic analyses, and the compounds were subjected to anti-inflammatory, anti-oxidative and cytotoxic assays.
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Tsai YC, Yu ML, El-Shazly M, Beerhues L, Cheng YB, Chen LC, Hwang TL, Chen HF, Chung YM, Hou MF, Wu YC, Chang FR. Alkaloids from Pandanus amaryllifolius: Isolation and Their Plausible Biosynthetic Formation. J Nat Prod 2015; 78:2346-2354. [PMID: 26461164 DOI: 10.1021/acs.jnatprod.5b00252] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Pandanus amaryllifolius Roxb. (Pandanaceae) is used as a flavor and in folk medicine in Southeast Asia. The ethanolic crude extract of the aerial parts of P. amaryllifolius exhibited antioxidant, antibiofilm, and anti-inflammatory activities in previous studies. In the current investigation, the purification of the ethanolic extract yielded nine new compounds, including N-acetylnorpandamarilactonines A (1) and B (2); pandalizines A (3) and B (4); pandanmenyamine (5); pandamarilactones 2 (6) and 3 (7), and 5(E)-pandamarilactonine-32 (8); and pandalactonine (9). The isolated alkaloids, with either a γ-alkylidene-α,β-unsaturated-γ-lactone or γ-alkylidene-α,β-unsaturated-γ-lactam system, can be classified into five skeletons including norpandamarilactonine, indolizinone, pandanamine, pandamarilactone, and pandamarilactonine. A plausible biosynthetic route toward 1-5, 7, and 9 is proposed.
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Affiliation(s)
- Yu-Chi Tsai
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Meng-Lun Yu
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Mohamed El-Shazly
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University , Organization of African Unity Street, Abassia, Cairo 11566, Egypt
| | - Ludger Beerhues
- Institut fur Pharmazeutische Biologie, Technische Universitat Braunschweig , Mendelssohnstrasse 1, D-38106 Braunschweig, Germany
| | - Yuan-Bin Cheng
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Lei-Chin Chen
- Department of Nutrition, I-Shou University , Kaohsiung 840, Taiwan
| | - Tsong-Long Hwang
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University , Taoyuan 333, Taiwan
| | - Hui-Fen Chen
- Department of Medical and Applied Chemistry, Kaohsiung Medical University , Kaohsiung 807 Taiwan
| | - Yu-Ming Chung
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Ming-Feng Hou
- Cancer Center, Kaohsiung Medical University Hospital , Kaohsiung 807, Taiwan
| | - Yang-Chang Wu
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Chinese Medicine Research and Development Center, China Medical University Hospital , Taichung 404, Taiwan
- Center for Molecular Medicine, China Medical University Hospital , Taichung 404, Taiwan
- School of Chinese Medicine, College of Chinese Medicine, China Medical University , Taichung 404, Taiwan
| | - Fang-Rong Chang
- Graduate Institute of Natural Products, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Cancer Center, Kaohsiung Medical University Hospital , Kaohsiung 807, Taiwan
- Research Center for Natural Product and New Drug, Kaohsiung Medical University , Kaohsiung 807, Taiwan
- Department of Marine Biotechnology and Resources, National Sun Yat-sen University , Kaohsiung 804, Taiwan
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Al-Alwani MAM, Mohamad AB, Kadhum AAH, Ludin NA. Effect of solvents on the extraction of natural pigments and adsorption onto TiO2 for dye-sensitized solar cell applications. Spectrochim Acta A Mol Biomol Spectrosc 2015; 138:130-137. [PMID: 25483560 DOI: 10.1016/j.saa.2014.11.018] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Revised: 10/17/2014] [Accepted: 11/05/2014] [Indexed: 06/04/2023]
Abstract
Nine solvents, namely, n-hexane, ethanol, acetonitrile, chloroform, ethyl-ether, ethyl-acetate, petroleum ether, n-butyl alcohol, and methanol were used to extract natural dyes from Cordyline fruticosa, Pandannus amaryllifolius and Hylocereus polyrhizus. To improve the adsorption of dyes onto the TiO2 particles, betalain and chlorophyll dyes were mixed with methanol or ethanol and water at various ratios. The adsorption of the dyes mixed with titanium dioxide (TiO2) was also observed. The highest adsorption of the C.fruticosa dye mixed with TiO2 was achieved at ratio 3:1 of methanol: water. The highest adsorption of P.amaryllifolius dye mixed with TiO2 was observed at 2:1 of ethanol: water. H.polyrhizus dye extracted by water and mixed with TiO2 demonstrated the highest adsorption among the solvents. All extracted dye was adsorbed onto the surface of TiO2 based on Fourier Transform Infrared Spectroscopy (FTIR) analysis. The inhibition of crystallinity of TiO2 was likewise investigated by X-ray analysis. The morphological properties and composition of dyes were analyzed via SEM and EDX.
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Affiliation(s)
- Mahmoud A M Al-Alwani
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, 43600 Selangor, Malaysia; Department of Biology, College of Education for Pure Sciences/Ibn Al-Haitham, University of Baghdad, Baghdad, Iraq.
| | - Abu Bakar Mohamad
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, 43600 Selangor, Malaysia
| | - Abd Amir H Kadhum
- Department of Chemical and Process Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, Bangi, 43600 Selangor, Malaysia
| | - Norasikin A Ludin
- Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, Bangi, 43600 Selangor, Malaysia
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Wu CM, Luan H, Wang S, Zhang XP, Liu HT, Guo P. [Pandanus tectorius derived caffeoylquinic acids inhibit lipid accumulation in HepG2 hepatoma cells through regulation of gene expression involved in lipid metabolism]. Yao Xue Xue Bao 2015; 50:278-283. [PMID: 26118105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The fruit of Pandanus tectorius (PTF) has a long history of use as a folk medicine to treat hyperlipidemia in Hainan province, South China. Our previous studies have shown that the n-butanol extract of PTF is rich in caffeoylquinic acids and has an adequate therapeutic effect on dyslipidemic animals induced by high-fat diet. In this work, seven caffeoylquinic acids isolated from PTF were screened for the lipid-lowering activity in HepG2 hepatoma cells. Oil-Red O staining, microscopy and intracellular triglyceride (TG) and total cholesterol (TC) quantification showed that 3-O-caffeoylquinic acid (3-CQA), 3, 5-di-O-caffeoylquinic acid (3,5-CQA), and 3,4,5-tri-O-caffeoylquinic acid (3,4,5-CQA) significantly inhibited lipid accumulation induced by oleic acid and decreased intracellular levels of TC and TG in a dose-dependent manner. These three caffeoylquinic acids showed no significant cytotoxicity at concentrations of 1 -50 μmol x L(-1) as determined by MTT assay. Realtime quantitative PCR revealed that 3-CQA and 3, 5-CQA significantly increased the expression of lipid oxidation-related genes PPARα, CPT-1 and ACOX1 while 3-CQA, 3, 5-CQA and 3,4,5-CQA decreased the expression of lipogenic genes SREBP-1c, SREBP-2, HMGR, ACC, FAS. Overall, 3-CQA, 3, 5-CQA and 3, 4, 5-CQA may be the principal hypolipidemic components in PTF which can decrease intracellular lipid accumulation through up-regulating the expression of lipid oxidative genes and down-regulating the expression of lipogenic genes.
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Chen XK, Ge FH. [Chemical components from essential oil of Pandanus amaryllifolius leaves]. Zhong Yao Cai 2014; 37:616-620. [PMID: 25345137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To analyze the chemical compositions of Pandanus amaryllifolius leaves essential oil extracted by steam distillation. METHODS The essential oil of Pandanus amaryllifolius leaves was analyzed by gas chromatography-mass spectrum, and the relative content of each component was determined by area normalization method. RESULTS 128 peaks were separated and 95 compounds were identified, which weighed 97.75%. The main chemical components of the essential oil were phytol (42.15%), squalene (16.81%), what's more pentadecanal (6.17%), pentadecanoic acid (4.49%), 3, 7, 11, 15-tetramethyl-2-hexadecen-1-ol (3.83%), phytone (2.05%) and the other 74 chemical compositions were firstly identified from the essential oil of Pandanus amaryllifolius leaves. CONCLUSION The chemical compositions of Pandanu samaryllifolius leaves essential oil was systematically, deeply isolated and identified for the first time. This experiment has provided scientific foundation for further utilization of Pandanus amaryllifolius leaves.
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Zhang X, Wu C, Wu H, Sheng L, Su Y, Zhang X, Luan H, Sun G, Sun X, Tian Y, Ji Y, Guo P, Xu X. Anti-hyperlipidemic effects and potential mechanisms of action of the caffeoylquinic acid-rich Pandanus tectorius fruit extract in hamsters fed a high fat-diet. PLoS One 2013; 8:e61922. [PMID: 23613974 PMCID: PMC3628350 DOI: 10.1371/journal.pone.0061922] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2012] [Accepted: 03/15/2013] [Indexed: 12/20/2022] Open
Abstract
Hyperlipidemia is considered to be one of the greatest risk factors contributing to the prevalence and severity of cardiovascular diseases. In this work, we investigated the anti-hyperlipidemic effect and potential mechanism of action of the Pandanus tectorius fruit extract in hamsters fed a high fat-diet (HFD). The n-butanol fraction of the P. tectorius fruit ethanol extract (PTF-b) was rich in caffeoylquinic acids (CQAs). Administration of PTF-b for 4 weeks effectively decreased retroperitoneal fat and the serum levels of total cholesterol (TC), triglycerides (TG) and low density lipoprotein-cholesterol (LDL-c) and hepatic TC and TG. The lipid signals (fatty acids, and cholesterol) in the liver as determined by nuclear magnetic resonance (NMR) were correspondingly reduced. Realtime quantitative PCR showed that the mRNA levels of PPARα and PPARα-regulated genes such as ACO, CPT1, LPL and HSL were largely enhanced by PTF-b. The transcription of LDLR, CYP7A1, and PPARγ was also upregulated. Treatment with PTF-b significantly stimulated the activation of AMP-activated protein kinase (AMPK) as well as the activity of serum and hepatic lipoprotein lipase (LPL). Together, these results suggest that administration of the PTF-b enriched in CQAs moderates hyperlipidemia and improves the liver lipid profile. These effects may be caused, at least in part, by increasing the expression of PPARα and its downstream genes and by upregulation of LPL and AMPK activities.
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Affiliation(s)
- Xiaopo Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Haifeng Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | | | - Yan Su
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Research Centre on Life Sciences and Environment Sciences, Harbin University of Commerce, Harbin, China
| | - Xue Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Research Centre on Life Sciences and Environment Sciences, Harbin University of Commerce, Harbin, China
| | - Hong Luan
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Research Centre on Life Sciences and Environment Sciences, Harbin University of Commerce, Harbin, China
| | - Guibo Sun
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Xiaobo Sun
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yu Tian
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yubin Ji
- Research Centre on Life Sciences and Environment Sciences, Harbin University of Commerce, Harbin, China
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- * E-mail: (PG); (XX)
| | - Xudong Xu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- * E-mail: (PG); (XX)
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Tan MA, Kitajima M, Kogure N, Nonato MG, Takayama H. Isolation of pandamarilactonine-H from the roots of Pandanus amaryllifolius and synthesis of epi-pandamarilactonine-H. J Nat Prod 2010; 73:1453-1455. [PMID: 20701299 DOI: 10.1021/np1003998] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
A new alkaloid (1a), named pandamarilactonine-H, which possesses a methyl-2-(pyrrolidin-2-yl)acetate function, was isolated from the roots of Pandanus amaryllifolius. Eleven known alkaloids were also isolated. Unambiguous assignment of the structure of 1a, including the absolute configuration, was accomplished by spectroscopic analysis and total synthesis of its enantiomer.
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Affiliation(s)
- Mario A Tan
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
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Denton GRW, Siegrist HG, Jano-Edwards JP. Trace elements in Pandanus (Pandanus tectorius) from a manganese-enriched wetland in Southern Guam: a possible Lytico-Bodig connection? J Toxicol Environ Health A 2009; 72:574-576. [PMID: 19296406 DOI: 10.1080/15287390902733523] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Extremely high levels of manganese (Mn) were encountered in foliar tissue of the monocot tree Pandanus tectorius from southern Guam with values exceeding 10,000 microg/g dry weight in some wetland representatives. Historically, dried Pandanus leaves were used extensively as a source of domestic fiber in the local Chamorro culture. A possible link between the use of this plant and a neurodegenerative disease complex that once plagued the island and is symptomatically similar to the occupational disease "manganism" poses an intriguing question that merits further investigation.
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Affiliation(s)
- Gary R W Denton
- Water and Environmental Research Institute of the Western Pacific, University of Guam, Mangilao, Guam.
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Wilson B, Pyatt B, Denton G. An evaluation of the bioavailability and bioaccumulation of selected metals occurring in a wetland area on the volcanic island of Guam, Western Pacific Ocean. J Environ Sci (China) 2009; 21:1547-1551. [PMID: 20108688 DOI: 10.1016/s1001-0742(08)62453-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
This initial research examined the presence, distribution and bioavailability of Cu, Cr, Ni, Mn and Fe in a wetland area of southern Guam. The research sites are within an area covered with saporite, a soil type derived from volcanic deposits on the island. Leaf tissue of Pandanus tectorius was extracted and analysed to determine the bioaccumulation of the target metals. Metal accumulation at sites considered aerobic and anaerobic was investigated together with an attempt to correlate actual accumulation of the target metals in the plant tissue with a recognised bioavailability indicator, in this case, three step sequential extraction scheme. Manganese was found to be accumulated in relatively high concentrations and to a lesser extent Cu was also accumulated. Chromium, Ni and Fe however exhibited very low accumulation factors. Accumulation of Mn in particular was significantly affected by aerobic conditions whereas the converse effect was experienced by Cu. Significant correlation between various steps of a Sequential Extraction Scheme and actual accumulation was not achieved although the degree of aerobic conditions at each site and soil pH did affect concentrations of metals extracted by differing steps of SES. Results obtained suggest that further research in the area should be undertaken using different plant species and tissues.
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Affiliation(s)
- Bob Wilson
- School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS, UK.
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Affiliation(s)
- Maribel G Nonato
- Research Center for the Natural Sciences, College of Science, Graduate School, University of Santo Tomas, España, Manila 1015, Philippines.
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Englberger L, Aalbersberg W, Dolodolotawake U, Schierle J, Humphries J, Iuta T, Marks GC, Fitzgerald MH, Rimon B, Kaiririete M. Carotenoid content of pandanus fruit cultivars and other foods of the Republic of Kiribati. Public Health Nutr 2007; 9:631-43. [PMID: 16923295 DOI: 10.1079/phn2005892] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
AbstractBackgroundKiribati, a remote atoll island country of the Pacific, has serious problems of vitamin A deficiency (VAD). Thus, it is important to identify locally grown acceptable foods that might be promoted to alleviate this problem. Pandanus fruit (Pandanus tectorius) is a well-liked indigenous Kiribati food with many cultivars that have orange/yellow flesh, indicative of carotenoid content. Few have been previously analysed.AimThis study was conducted to identify cultivars of pandanus and other foods that could be promoted to alleviate VAD in Kiribati.MethodEthnography was used to select foods and assess acceptability factors. Pandanus and other foods were analysed for β- and α-carotene, β-cryptoxanthin, lutein, zeaxanthin, lycopene and total carotenoids using high-performance liquid chromatography.ResultsOf the nine pandanus cultivars investigated there was a great range of provitamin A carotenoid levels (from 62 to 19 086 μg β-carotene/100 g), generally with higher levels in those more deeply coloured. Seven pandanus cultivars, one giant swamp taro (Cyrtosperma chamissonis) cultivar and native fig (Ficus tinctoria) had significant provitamin A carotenoid content, meeting all or half of estimated daily vitamin A requirements within normal consumption patterns. Analyses in different laboratories confirmed high carotenoid levels in pandanus but showed that there are still questions as to how high the levels might be, owing to variation arising from different handling/preparation/analytical techniques.ConclusionsThese carotenoid-rich acceptable foods should be promoted for alleviating VAD in Kiribati and possibly other Pacific contexts where these foods are important. Further research in the Pacific is needed to identify additional indigenous foods with potential health benefits.
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Affiliation(s)
- Lois Englberger
- Island Food Community of Pohnpei, Pohnpei, Federated States of Micronesia
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Uddin SJ, Shilpi JA, Rahman MT, Ferdous M, Rouf R, Sarker SD. Assessment of neuropharmacological activities of Pandanus foetidus (Pandanaceae) in mice. Pharmazie 2006; 61:362-4. [PMID: 16649557] [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: 05/08/2023]
Abstract
The methanol extract of the leaves of Pandanus foetidus Roxb. (Pandanaceae) was assessed for neuropharmacological activities in mice using a number of experimental models. The extract dose-dependently inhibited acetic acid-induced writhing in mice when given at the doses of 250 and 500 mg/kg body weight. At the same dose levels, it significantly prolonged the pentobarbitone-induced sleeping time in mice, and showed mild to moderate central nervous system depressant activity when assessed by the hole cross and the open field tests in mice model. On the basis of these findings, it can be assumed that the extract exerts its depressant effect on the central nervous system in mice by interfering with the cortical function.
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Affiliation(s)
- S J Uddin
- Pharmacy Discipline, Life Science School, Khulna University, Khulna, Bangladesh
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Ooi LSM, Wong EYL, Sun SSM, Ooi VEC. Purification and characterization of non-specific lipid transfer proteins from the leaves of Pandanus amaryllifolius (Pandanaceae). Peptides 2006; 27:626-32. [PMID: 16229926 DOI: 10.1016/j.peptides.2005.08.019] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2005] [Revised: 08/28/2005] [Accepted: 08/31/2005] [Indexed: 10/25/2022]
Abstract
Two proteins were isolated from the saline extract of mature leaves of Pandanus amaryllifolius, using affinity chromatography on fetuin-agarose and Affi-gel Blue gel, anion exchange chromatography as well as gel filtration. The proteins were demonstrated as non-glycoproteins, with molecular mass of 18 and 13 kDa, respectively, comprising of peptide subunits from 6.5 to 9 kDa in the forms of heterodimer and homodimer. All of them have similar N-terminal amino acid sequences with only minor variations and are matched to non-specific lipid transfer proteins (nsLTPs) of the other plants such as wheat LTP using NCBI Blast searching for short, nearly exact matches. Furthermore, they explicated each other as isoforms originated putatively from a multigene family with various molecular weight, binding affinity, ionic strength, and subunits. However, the potencies for antiproliferation of HL-60 cell line and inhibition of the growth of the bacteria Pseudomonas aeruginosa are different in that those of the fetuin-binding protein are greater than non-fetuin binding proteins. The non-specific lipid transfer proteins of P. amaryllifolius exhibit weak to moderate hemagglutinating activity toward rabbit erythrocytes, but, this activity could not be reversed by mannose. They thus could be easily differentiated from the previously reported mannose-binding lectin isolated from this plant, which has subunits with similar molecular weight.
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Affiliation(s)
- Linda S M Ooi
- Department of Biology, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
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Inada A, Ikeda Y, Murata H, Inatomi Y, Nakanishi T, Bhattacharyya K, Kar T, Bocelli G, Cantoni A. Unusual cyclolanostanes from leaves of Pandanus boninensis. Phytochemistry 2005; 66:2729-33. [PMID: 16229870 DOI: 10.1016/j.phytochem.2005.08.019] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2005] [Revised: 06/23/2005] [Indexed: 05/04/2023]
Abstract
Two unusual triterpenoids, (24S)-24-methyl-25,32-cyclo-5alpha-lanosta-9(11)-en-3beta-ol and (24S)-24-methyl-25,32-cyclo-cycloartane-3beta-ol, were isolated from leaves of Pandanus boninensis along with known triterpenoids and lignans. Their structures were established on the basis of spectroscopic methods and X-ray analysis.
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Affiliation(s)
- Akira Inada
- Faculty of Pharmaceutical Sciences, Setsunan University, Hirakata, Osaka 573-0101, Japan.
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Ooi LSM, Sun SSM, Ooi VEC. Purification and characterization of a new antiviral protein from the leaves of Pandanus amaryllifolius (Pandanaceae). Int J Biochem Cell Biol 2005; 36:1440-6. [PMID: 15147723 DOI: 10.1016/j.biocel.2004.01.015] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/21/2004] [Indexed: 10/26/2022]
Abstract
A lectin, designated Pandanin, was isolated from the saline extract of the leaves of Pandanus amaryllifolius, using ammonium sulfate precipitation, affinity chromatography on mannose-agarose and molecular size exclusion by gel filtration. Pandanin is an unglycosylated protein with a molecular mass of 8.0 kDa both after gel filtration and on sodium dodecyl sulfate-polyacrylamide gel electrophoresis, indicating that it is a single polypeptide chain. The first 10 residues of the N-terminal amino acid sequence are DNILFSDSTL. An analysis of the sequence of first 30 amino acids at the N-terminal region shows that Pandanin has about 50-60% homology to those of mannose-specific lectins reported from monocot plants. Pandanin exhibits hemagglutinating activity toward rabbit erythrocytes, and its activity could be reversed exclusively by mannose and mannan. Pandanin also possesses antiviral activities against human viruses, herpes simplex virus type-1 (HSV-1) and influenza virus (H1N1) with 3 day's EC50 of 2.94 and 15.63 microM, respectively.
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Affiliation(s)
- Linda S M Ooi
- Department of Biology, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
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Abstract
Three new alkaloids, the two pyrrolidine type alkaloids (1 and 2) and 6E-pandanamine (3), together with five known alkaloids (4-8), were isolated from the leaves of Pandanus amaryllifolius collected in West Java, Indonesia. All the new alkaloids have two alpha-methyl alpha,beta-unsaturated gamma-lactone moieties, while compound 2 also has an additional seven-membered ring, which has not been encountered before in Pandanus alkaloids. Two different extraction methods, namely, a solvent partitioning extraction and acid-base treatment, were tested, giving secondary and tertiary amines, respectively. Spectroscopic and chemical studies showed that the tertiary amines isolated from the acid-base treatment were artifacts formed during the extraction process. This finding suggests that the use of conventional acid-base treatment in isolating Pandanus alkaloids should be reviewed since it can introduce artifacts.
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Affiliation(s)
- Angela A Salim
- Institute for Molecular Bioscience and Department of Chemistry, The University of Queensland, Brisbane, QLD 4072, Australia
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Englberger L, Fitzgerald MH, Marks GC. Pacific pandanus fruit: an ethnographic approach to understanding an overlooked source of provitamin A carotenoids. Asia Pac J Clin Nutr 2003; 12:38-44. [PMID: 12737009] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Commonly recommended plant sources of provitamin A, such as dark green leafy vegetables, are not acceptable in many population groups. The objective of this study was to identify other indigenous foods that may be effectively promoted to alleviate vitamin A deficiency (VAD) and to gather information relevant to identification, production, acquisition, and consumption of foods relevant to a food-based VAD prevention strategy in the Federated States of Micronesia. An ethnographic study on edible pandanus cultivars, involving key informant interviews and observation was carried out. Analyses revealed a great range in carotenoid content. Several orange-coloured pandanus cultivars, all highly acceptable, contained high levels of carotenoid, almost meeting daily requirements in usual consumption patterns, whereas light yellow-coloured cultivars contained low levels. Availability has decreased substantially in recent years due to increased consumption of imported foods and general neglect of indigenous foods. High-carotenoid pandanus should be promoted for general enjoyment and health benefits.
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Affiliation(s)
- Lois Englberger
- Nutrition Program, School of Population Health, University of Queensland, Brisbane, Australia.
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Wongpornchai S, Sriseadka T, Choonvisase S. Identification and quantitation of the rice aroma compound, 2-acetyl-1-pyrroline, in bread flowers (Vallaris glabra Ktze). J Agric Food Chem 2003; 51:457-62. [PMID: 12517110 DOI: 10.1021/jf025856x] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The aroma impact compound, 2-acetyl-1-pyrroline (2AP), has been identified for the first time in headspace of fresh bread flowers (Vallaris glabra Ktze) in which volatile components were extracted by solid-phase microextraction (SPME) at room temperature prior to analysis by gas chromatography-mass spectrometry. A total of 50 volatiles were detected. Among these, 23 volatiles were identified, predominantly in a group of terpenes. More volatiles were found in the extract of fresh bread flowers obtained by continuous steam distillation and solvent extraction (SDS). Of the 40 volatiles identified, the additional components were mainly straight-chain saturated hydrocarbons. 2AP was found in the extracts obtained by both SPME (0.37%) and SDS (2.71% relative proportion). Quantitative analyses of 2AP in bread flowers and other plant materials were performed by solvent extraction employing acidic solutions and capillary GC with flame ionization detection. The highest concentration of 2AP was found in dried flowers of V. glabra at 26.1 mg/kg. By comparison with other plant sources, fresh leaves of Pandanus amaryllifolius Roxb contain 2AP at 10.3 mg/kg and Thai fragrant rice, Khao Dawk Mali 105, at 3.0 mg/kg.
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Affiliation(s)
- Sugunya Wongpornchai
- Department of Chemistry, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand
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Takayama H, Ichikawa T, Kitajima M, Nonato MG, Aimi N. Isolation and structure elucidation of two new alkaloids, pandamarilactonine-C and -D, from Pandanus amaryllifolius and revision of relative stereochemistry of pandamarilactonine-A and -B by total synthesis. Chem Pharm Bull (Tokyo) 2002; 50:1303-4. [PMID: 12237561 DOI: 10.1248/cpb.50.1303] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two new pyrrolidine alkaloids, pandamarilactonine-C and -D, were isolated from Pandanus amaryllifolius. Based on the total synthesis of pandamarilactonine-C and its related alkaloid, pandamarilactonine-A, the relative stereochemistry of pandamarilactonine-A and -B, which was previously proposed by spectroscopic analysis, was revised.
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