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Liu M, Wang C, Zhang H, Guo H, Kang L, Li H, Li K. A systematic review on polysaccharides from Morinda officinalis How: Advances in the preparation, structural characterization and pharmacological activities. JOURNAL OF ETHNOPHARMACOLOGY 2024; 328:118090. [PMID: 38521432 DOI: 10.1016/j.jep.2024.118090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 03/06/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Morinda officinalis How is called "Ba-Ji-Tian" in Traditional Chinese Medicine (TCM), which belongs to the genus Rubiaceae and is widely used for medicinal purposes in China and other eastern Asian countries. Morinda officinalis How polysaccharides (MOPs) are one of the key bioactive components, and have a variety of biological activities, such as antioxidation, antifatigue, enhanced immunity, antiosteoporosis, ect. AIM OF THE REVIEW This review is aimed at providing comprehensive information of the latest preparation technologies, structural characterization, and pharmacological effects of MOPs. A more in-depth research on the structure and clinical pharmacology of the MOPs was explored. It could lay a foundation for further investigate the pharmacological activities and guide the safe clinical practice of MOPs. MATERIALS AND METHODS The Web of Science, PubMed, Scifinder, Google Scholar, CNKI, Wanfang database, and other online database are used to search and collect the literature on extraction and separation methods, structural characterization, and pharmacological activities of MOPs publisher from 2004 to 2023. The key words are "Morinda officinalis polysaccharides", "extraction", "isolation", "purification" and "pharmacological effects". RESULTS Morinda officinalis has been widely used in tonifying the kidney yang since ancient times, and is famous for one of the "Four Southern Medicines" in China for the treatment of depression, osteoporosis, rheumatoid arthritis, infertility, fatigue and Alzheimer's disease. The active ingredients of Morinda officinalis that have been researched on the treatment of depression and osteoporosis are mostly polysaccharides and oligosaccharides. The content of polysaccharides varies with different methods of extraction, separation and purification. MOPs have a wide range of pharmacological effects, including antioxidant, antifatigue, immunomodulatory, antiosteoporosis, and regulation of spermatogenesis activities. These pharmacological properties lay a foundation for the treatment of oxidative stress, osteoporosis, spermatogenic dysfunction, immunodeficiency, inflammation and other diseases with MOPs. CONCLUSIONS At present, MOPs have been applied in the treatment of skeletal muscle atrophy, varicocele, osteoporosis, because of its effects of enhancing immunity, improving reproduction and antioxidant. However, the structure-activity relationship of these effects are still not clear. The more deeply study could be conducted on the MOPs in the future. The toxicology and clinical pharmacology, as well as mechanism of action of MOPs were also needed to deeply studied and clarified. This paper could lay the foundation for the application and safety of MOPs in multifunctional foods and drugs.
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Affiliation(s)
- Mengyun Liu
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, PR China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Zhengzhou, 450046, PR China
| | - Chen Wang
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China
| | - Hongwei Zhang
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, PR China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Zhengzhou, 450046, PR China
| | - Hui Guo
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, PR China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Zhengzhou, 450046, PR China
| | - Le Kang
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, PR China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Zhengzhou, 450046, PR China
| | - Hongwei Li
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, PR China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Zhengzhou, 450046, PR China.
| | - Kai Li
- School of Pharmaceutical Sciences, Henan University of Chinese Medicine, 156 Jinshui East Road, Zhengdong New District, Zhengzhou, 450046, PR China; Henan Research Center for Special Processing Technology of Chinese Medicine, Zhengzhou, 450046, PR China; Collaborative Innovation Center of Research and Development on the Whole Industry Chain of Yu-Yao, Henan Province, Zhengzhou, 450046, PR China.
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Chen Y, Cai Y, Zhao Z, Yang D, Xu X. Optimization of Extraction Process, Preliminary Characterization and Safety Study of Crude Polysaccharides from Morindae Officinalis Radix. Foods 2023; 12:foods12081590. [PMID: 37107385 PMCID: PMC10137598 DOI: 10.3390/foods12081590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/19/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
In this study, the hot water extraction process of crude polysaccharides from Morindae officinalis radix (cMORP) was conducted and optimized through a single-factor test and orthogonal experimental design. With the optimal extraction process (extraction temperature of 80 °C, extraction time of 2 h, liquid/solid ratio of 15 mL/g, and number of extraction of 1), the cMORP was obtained by the ethanol precipitation method. The chemical properties and preliminary characterization of the cMORP were analyzed by chemical or instrumental methods. Furthermore, to indicate a preliminary study on safety, a single oral dose of 5000 mg/kg body weight (BW) was administered orally to Kunming (KM) mice for acute toxicity, and the cMORP was administered orally to KM mice once a day at doses of 25, 50, and 100 mg/kg BW for 30 days. General behaviors, body weight variations, histopathology, relative organ weights, and hematological and serum biochemical parameters were observed and recorded. The results suggested there were no toxicologically significant changes. Based on the safety study, cMORP can be initially considered non-toxic with no acute oral toxicity up to 5000 mg/kg BW and safe at up to 100 mg/kg BW in KM mice for 30 days.
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Affiliation(s)
- Yaxian Chen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Yini Cai
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Zhimin Zhao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Depo Yang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
| | - Xinjun Xu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China
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Isolation, characterization, immunoregulatory, and antioxidant activities of polysaccharides from Morinda officinalis fermented by Bacillus sp. DU-106. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2022. [DOI: 10.1515/ijfe-2021-0265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Morinda officinalis (M. officinalis) polysaccharides are valuable ingredients with various bioactive functions. This work aimed to investigate whether fermentation could enhance the bioactivities of M. officinalis polysaccharides. A strain of Bacillus sp. DU-106 was introduced to ferment M. officinalis. Two polysaccharides (namely NMP-1 and FMP-1) were isolated from raw M. officinalis and fermented M. officinalis, respectively. The structure, immunoregulatory, and antioxidant activities of NMP-1 and FMP-1 were investigated. Bacillus sp. DU-106 fermentation changed the monosaccharide composition and conformation of M. officinalis polysaccharides. After fermentation, FMP-1 dramatically stimulated IL-1β secretion in RAW 264.7 macrophages. In vitro, Bacillus sp. DU-106 fermentation of M. officinalis enhanced the DPPH radical, hydroxyl radical, and superoxide anion scavenging activities. In vivo, FMP-1 extended the lifespan and ameliorated oxidative injury of Caenorhabditis elegans. Collectively, Bacillus sp. DU-106 fermentation significantly enhanced the immunoregulatory and antioxidant activities of M. officinalis polysaccharides.
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Wang J, Xu S, Mei Y, Cai S, Gu Y, Sun M, Liang Z, Xiao Y, Zhang M, Yang S. A high-quality genome assembly of Morinda officinalis, a famous native southern herb in the Lingnan region of southern China. HORTICULTURE RESEARCH 2021; 8:135. [PMID: 34059651 PMCID: PMC8166937 DOI: 10.1038/s41438-021-00551-w] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 02/23/2021] [Accepted: 03/22/2021] [Indexed: 05/03/2023]
Abstract
Morinda officinalis is a well-known medicinal and edible plant that is widely cultivated in the Lingnan region of southern China. Its dried roots (called bajitian in traditional Chinese medicine) are broadly used to treat various diseases, such as impotence and rheumatism. Here, we report a high-quality chromosome-scale genome assembly of M. officinalis using Nanopore single-molecule sequencing and Hi-C technology. The assembled genome size was 484.85 Mb with a scaffold N50 of 40.97 Mb, and 90.77% of the assembled sequences were anchored on eleven pseudochromosomes. The genome includes 27,698 protein-coding genes, and most of the assemblies are repetitive sequences. Genome evolution analysis revealed that M. officinalis underwent core eudicot γ genome triplication events but no recent whole-genome duplication (WGD). Likewise, comparative genomic analysis showed no large-scale structural variation after species divergence between M. officinalis and Coffea canephora. Moreover, gene family analysis indicated that gene families associated with plant-pathogen interactions and sugar metabolism were significantly expanded in M. officinalis. Furthermore, we identified many candidate genes involved in the biosynthesis of major active components such as anthraquinones, iridoids and polysaccharides. In addition, we also found that the DHQS, GGPPS, TPS-Clin, TPS04, sacA, and UGDH gene families-which include the critical genes for active component biosynthesis-were expanded in M. officinalis. This study provides a valuable resource for understanding M. officinalis genome evolution and active component biosynthesis. This work will facilitate genetic improvement and molecular breeding of this commercially important plant.
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Affiliation(s)
- Jihua Wang
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Shiqiang Xu
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Yu Mei
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Shike Cai
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Yan Gu
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Minyang Sun
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China
| | - Zhan Liang
- DongFuhang High-tech Agricultural Planting and Management Co., Ltd, 526000, Zhaoqing, China
| | - Yong Xiao
- Coconut Research Institute, Chinese Academy of Tropical Agricultural Sciences, 571339, Wenchang, China.
| | - Muqing Zhang
- State Key Lab for Conservation and Utilization of Subtropical Agric-Biological Resources, Guangxi University, 530005, Nanning, China.
| | - Shaohai Yang
- Guangdong Provincial Key Laboratory of Crops Genetics & Improvement, Crops Research Institute, Guangdong Academy of Agricultural Sciences, 510640, Guangzhou, China.
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Beitel SM, Coelho LF, Contiero J. Efficient Conversion of Agroindustrial Waste into D(-) Lactic Acid by Lactobacillus delbrueckii Using Fed-Batch Fermentation. BIOMED RESEARCH INTERNATIONAL 2020; 2020:4194052. [PMID: 32382549 PMCID: PMC7193294 DOI: 10.1155/2020/4194052] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 01/27/2020] [Accepted: 03/04/2020] [Indexed: 11/18/2022]
Abstract
PURPOSE The goal of this paper is to describe the green conversion of agricultural waste products, such as molasses and corn steep liquor, into large amounts of D(-) lactic acid using a facilitated multipulse fed-batch strategy and affordable pH neutralizer. This is a very low-cost process because there is no need for hydrolysis of the waste products. The fed-batch strategy increases lactic acid productivity by avoiding inhibition caused by a high initial substrate concentration, and the selected controlling agent prevents cell stress that could be caused by high osmotic pressure of the culture media. METHODS The effects of different carbon and nitrogen sources on lactic acid production were investigated, and the best concentrations of the medium components were determined. To optimize the culture conditions of the Lactobacillus delbrueckii strain, the effects of pH control, temperature, neutralizing agent, agitation, and inoculum size in batch cultures were investigated. Fed-batch strategies were also studied to improve production and productivity. RESULT A high titer of D(-) lactic acid (162g/liter) was achieved after 48 hours of fermentation. Productivity at this point was 3.37 g/L·h. The optimum conditions were a temperature of 39°C, pH 5.5 controlled by the addition of Ca(OH)2, agitation at 150 rpm, and inoculum size of 25% (v/v). CONCLUSION The production of high optical purity D(-) lactic acid through L. delbrueckii fermentation with molasses and corn steep liquor is a promising economical alternative process that can be performed on the industrial scale.
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Affiliation(s)
- Susan Michelz Beitel
- Department of Biochemistry and Microbiology, Institute Bioscience, São Paulo State University (UNESP), Av. 24A 1515 CEP- 13506-900, Rio Claro São Paulo, Brazil
| | - Luciana Fontes Coelho
- Department of Biochemistry and Microbiology, Institute Bioscience, São Paulo State University (UNESP), Av. 24A 1515 CEP- 13506-900, Rio Claro São Paulo, Brazil
| | - Jonas Contiero
- Department of Biochemistry and Microbiology, Institute Bioscience, São Paulo State University (UNESP), Av. 24A 1515 CEP- 13506-900, Rio Claro São Paulo, Brazil
- Associate Laboratory IPBEN-UNESP, Av. 24A 1515 CEP- 13506-900, Rio Claro São Paulo, Brazil
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COMPARATIVE PHARMACOKINETIC AND BIOAVAILABILITY STUDIES OF MONOTROPEIN, KAEMPFEROL-3-O-GLUCOSIDE, AND QUERCETIN-4’-O-GLUCOSIDE AFTER ORAL AND INTRAVENOUS ADMINISTRATION OF MOTILIPERM IN RATS. JOURNAL OF MEN'S HEALTH 2020. [DOI: 10.15586/jomh.v16isp1.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Zhang H, Cai XT, Tian QH, Xiao LX, Zeng Z, Cai XT, Yan JZ, Li QY. Microwave-Assisted Degradation of Polysaccharide from Polygonatum sibiricum and Antioxidant Activity. J Food Sci 2019; 84:754-761. [PMID: 30908644 DOI: 10.1111/1750-3841.14449] [Citation(s) in RCA: 52] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/17/2018] [Accepted: 12/18/2018] [Indexed: 12/23/2022]
Abstract
Four polysaccharide fractions (P-1: 71.40%, P-2: 1.95%, P-3: 1.14%, P-4: 1.64%) were isolated from crude Polygonatum sibiricum polysaccharide (PSP), processed by water extraction, ethanol precipitation, and further separated with diethylaminoethyl cellulose-52 anion-exchange chromatography. Their molecular weights and monosaccharide compositions were characterized by high performance gel chromatography with evaporative light scattering detector and ultraviolet-visible detector. The antioxidant activity of four polysaccharides fractions were assessed by the electron transfer menchanism (DPPH, ferric reducing power, and ABST assays) and chelation of transition metals (Fe2+ and Cu2+ chelation ability). The highest content fraction P-1 exhibited the lowest antioxidant activity, and the ranking of antioxidant capacity was P-4 > P-3 > P-2 > PSP > P-1. After processed by microwave-assisted degradation, the molecular weight of P-1 was decreased from 2.99 × 105 to 2.33 × 103 Da, while the antioxidant activity of degraded P-1 was about eightfold higher than natural P-1. These results indicated that the proposed microwave-assisted degradation approach was an efficacious methodology to improve their bioactivity by lower the molecular weight of polysaccharides. PRACTICAL APPLICATION: This study provided an environmentally friendly, convenient and efficient microwave-assisted degradation technology to process the neutral polysaccharides from Polygonatum sibiricum. The results could be used for the development and utilization of various plant polysaccharides as a kind of food supplement in our daily life.
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Affiliation(s)
- Hui Zhang
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Xiu-Ting Cai
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Qing-Hua Tian
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Lin-Xia Xiao
- Collaborative Innovation Center of Yangtze River Region Green Pharmaceuticals, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Zhen Zeng
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Xin-Tong Cai
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Ji-Zhong Yan
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
| | - Qing-Yong Li
- College of Pharmaceutical Science, Zhejiang Univ. of Technology, Hangzhou, 310014, China
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Jiang K, Huang D, Zhang D, Wang X, Cao H, Zhang Q, Yan C. Investigation of inulins from the roots of Morinda officinalis for potential therapeutic application as anti-osteoporosis agent. Int J Biol Macromol 2018; 120:170-179. [PMID: 30125630 DOI: 10.1016/j.ijbiomac.2018.08.082] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Revised: 08/13/2018] [Accepted: 08/14/2018] [Indexed: 01/06/2023]
Abstract
SCOPE In China, the root of M. officinalis has been widely used over thousands of years against a wide range of bone disease such as lumbago, limb-ache, sciatica and rheumatic arthralgia, and has tremendous medicinal value. But the bioactive constituents responsible for the osteoprotective effects in M. officinalis remain unknown. METHODS AND RESULTS M. officinalis polysaccharides were extracted, isolated and purified via DEAE-cellulose 52 and Sephacryl S-100HR column to obtain two saccharides (MOP70-1 and MOP70-2). The results of osteogenic activity assays revealed that MOP70-1 and MOP70-2 significantly promoted the proliferation, differentiation and mineralization of MC3T3-E1 cells. Furthermore, MOP70-2 also upregulated gene expression of runt-related transcription factor 2, osterix, osteocalcin, osteopontin, bone sialoprotein and osteoprotegerin, which implied that MOP70-2 stimulated osteoblastic differentiation by up-regulating osteogenic differentiation-related marker genes. In addition, structural analysis indicated that MOP70-2 contained (2 → 1)-linked-β-D-Fruf residues and terminated with a glucose residue. Morphological and conformational analyses indicated that MOP70-2 exhibited spherical structure of conglomeration and had no triple helix structure. CONCLUSION Our studies reported the osteogenic inulins obtained from root of M. officinalis for the first time. The systematical investigation including extraction, purification, biological activities and structural characterization provide a strong evidence for future therapeutic applications as anti-osteoporosis agent.
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Affiliation(s)
- Keming Jiang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Dong Huang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Dawei Zhang
- Department of Pharmacology, Guangdong Medical University, Dongguan, Guangdong 523808, China
| | - Xinluan Wang
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Huijuan Cao
- Translational Medicine R&D Center, Institute of Biomedical and Health Engineering, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Qian Zhang
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Chunyan Yan
- School of Pharmacy, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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Mukherjee A, Banerjee S, Halder G. Parametric optimization of delignification of rice straw through central composite design approach towards application in grafting. J Adv Res 2018; 14:11-23. [PMID: 30023132 PMCID: PMC6046610 DOI: 10.1016/j.jare.2018.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2018] [Revised: 05/02/2018] [Accepted: 05/07/2018] [Indexed: 11/27/2022] Open
Abstract
Rice straw was delignified for use in free-radical grafting as a roofing material. NaOH concentration, reaction time and temperature on delignification were studied. Delignification of rice straw was optimized by central composite design approach. . Alkali concn.7.59%, time 75.11 min and temperature 40 °C were best optimized conditions. Lignin extraction concentration was found to be 70.3 mg/g.
The present investigation deals with process optimisation of delignification of rice straw towards its micro-porous structural enhancement for its utilization in polymer grafting. The individual effect of influential parameters viz. sodium hydroxide concentration (1–12%, w/v), reaction time (30–126 min), and temperature (20–150 °C) on delignification were studied in a single mode batch process. The process parameters were further optimized with Central composite design (CCD) approach of response surface methodology in Design expert software. Delignification of rice straws was observed to follow quadratic equation. Analysis of variance (ANOVA) study suggested the equation to be significant for the process with major impact of sodium hydroxide concentration on the delignification process than reaction time and temperature. The optimized parametric conditions of delignification are: alkali concentration 7.59%, reaction time 75.11 min, and reaction temperature 40 °C. The software predicted lignin extraction concentration to be 72.4 mg/g, which upon experimentation was found to be 70.03 mg/g. Instrumental analysis of the delignified rice straw demonstrated porous structure and change in surface chemistry due to lignin removal. Therefore, the delignified rice straw obtained under optimized conditions were found to be appropriate for grafting of polymers which improved its resilience for variable usages.
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Affiliation(s)
- Aparna Mukherjee
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur 713209, India
| | - Soumya Banerjee
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur 713209, India
| | - Gopinath Halder
- Department of Chemical Engineering, National Institute of Technology Durgapur, Durgapur 713209, India
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Lee YK, Bang HJ, Oh JB, Whang WK. Bioassay-Guided Isolated Compounds from Morinda officinalis Inhibit Alzheimer's Disease Pathologies. Molecules 2017; 22:molecules22101638. [PMID: 28961196 PMCID: PMC6151407 DOI: 10.3390/molecules22101638] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 09/28/2017] [Accepted: 09/28/2017] [Indexed: 11/20/2022] Open
Abstract
Due to the side effects of synthetic drugs, the therapeutic potential of natural products for Alzheimer’s disease (AD) has gained interest. Morinda officinalis has demonstrated inhibitory effects on geriatric diseases, such as bone loss and osteoporosis. However, although AD is a geriatric disease, M. officinalis has not been evaluated in an AD bioassay. Therefore, M. officinalis extracts and fractions were tested for AD-related activity, including inhibition of acetylcholinesterase (AChE), butyrylcholinesterase (BChE), β-site amyloid precursor protein cleaving enzyme 1 (BACE1), and advanced glycation end-product (AGE) formation. A bioassay-guided approach led to isolation of 10 active compounds, eight anthraquinones (1–8), one coumarin (9), and one phytosterol (10), from n-hexane and ethyl acetate fractions of M. officinalis. The five anthraquinones (4–8) were stronger inhibitors of AChE than were other compounds. Compounds 3 and 9 were good inhibitors of BChE, and compounds 3 and 8 were good inhibitors of BACE1. Compounds 1–5 and 7–9 were more active than the positive control in inhibiting AGE formation. In addition, we first suggested a structure-activity relationship by which anthraquinones inhibit AChE and BACE1. Our findings demonstrate the preventive and therapeutic efficacy of M. officinalis for AD and its potential use as a natural alternative medicine.
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Affiliation(s)
- Yoon Kyoung Lee
- Pharmaceutical Botany Laboratory, College of Pharmacy, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 151-756, Korea.
| | - Hyo Jeong Bang
- Pharmaceutical Botany Laboratory, College of Pharmacy, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 151-756, Korea.
| | - Jeong Bin Oh
- Pharmaceutical Botany Laboratory, College of Pharmacy, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 151-756, Korea.
| | - Wan Kyunn Whang
- Pharmaceutical Botany Laboratory, College of Pharmacy, Chung-Ang University, Heukseok-dong, Dongjak-gu, Seoul 151-756, Korea.
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An O-acetyl-glucomannan from the rhizomes of Curculigo orchioides: Structural characterization and anti-osteoporosis activity in vitro. Carbohydr Polym 2017; 174:48-56. [PMID: 28821095 DOI: 10.1016/j.carbpol.2017.06.051] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 06/12/2017] [Accepted: 06/13/2017] [Indexed: 02/02/2023]
Abstract
Osteoporosis is characterized by a reduction in bone mass and bone mineral density, which weakens the bone. Due to the side effects associated with drugs that are currently used to treat this disease, an increasing number of studies have focused on the research of effective ingredients derived from natural products. In particular, polysaccharides extracted from Chinese herbal medicines have received increasing attention. In this study, we isolated a homogeneous polysaccharide (COP90-1) from the dried rhizomes of Curculigo orchioides, a famous traditional Chinese medicine that is widely used in China, and determined its structure using the combined methods of chemical and spectral analyses. In addition, its effects on the proliferation and differentiation of primary mouse osteoblasts were assessed. The results showed that COP90-1 can effectively promote the proliferation and differentiation of primary osteoblasts in vitro. Additional studies are warranted to study the effects of this compound in vivo.
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Qian XP, Zha XQ, Xiao JJ, Zhang HL, Pan LH, Luo JP. Sulfated modification can enhance antiglycation abilities of polysaccharides from Dendrobium huoshanense. Carbohydr Polym 2014; 101:982-9. [DOI: 10.1016/j.carbpol.2013.10.035] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2013] [Revised: 09/28/2013] [Accepted: 10/12/2013] [Indexed: 11/29/2022]
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