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Biomolecule and its Types 生物分子及其类型
Pub Date : 2021-01-01 DOI: 10.35248/2329-6836.21.9.404
Smitarani Upadhay
Biomolecules are the building block of life. Cell which is known as the building of body is made up of these biomolecules. These biomolecules are further made up of inorganic compounds. C, H, N, O is the four major inorganic compounds which make the 94% of the cell. S, P makes 3% of the cell. Biomolecules also called as biological molecule, which are produced by cells and living organisms. The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins.
生物分子是生命的基石。细胞被称为身体的建筑,是由这些生物分子组成的。这些生物分子又由无机化合物组成。碳、氢、氮、氧是构成细胞94%的四种主要无机化合物。S P占细胞的3%生物分子又称生物分子,是由细胞和生物体产生的。生物分子的四种主要类型是碳水化合物、脂类、核酸和蛋白质。
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引用次数: 0
Isolation of Natural Caffeine From Lipton⢠Black Tea Through Acid-BaseLiquid-Liquid Extraction Approach, Its Medical Significance and ItsCharacterization By Thin Layer Chromatography and IR Analysis 酸-碱-液萃取法从lipton<e:2>红茶中分离天然咖啡因,其医学意义及薄层色谱和红外光谱分析
Pub Date : 2021-01-01 DOI: 10.35248/2329-6836.21.9.397
Manzar Zahra, M. Fazal-ur-Rehman, Iqra Qayyum
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引用次数: 0
Editorial Note for Natural Products Chemistry & Research 2021 《天然产物化学与研究》2021年编辑说明
Pub Date : 2021-01-01 DOI: 10.35248/2329-6836.21.9.E406
Xiao-Hui Gao
I am pleased to introduce that the journal of Natural Products Chemistry & Research deals with chemical compounds found in nature that usually has a pharmacological or biological activity for use in pharmaceutical drug discovery and drug design. Natural Products Chemistry & Research emphasizes articles related to the study of chemistry and biochemistry of naturally occurring compounds or the biology of living systems from which they are obtained. Natural Products Journal is at higher echelons that enhance the intelligence and information dissemination on topics closely related to Natural Products. They provide a unique forum dedicated to scientists to express their research articles, review articles, case reports and short communications on an array of Natural Products research. The Natural Products Peer Reviewed Journal is proficiently supported by universally prominent Editorial Board members. Natural Products journal impact factor is mainly calculated based on the number of articles that undergo a double blind peer review process by competent Editorial Board so as to ensure excellence, essence of the work and number of citations received for the same published articles. Abstracts and full texts of all articles published by Natural Products Open Access articles are freely accessible to everyone immediately after publication.
我很高兴地向大家介绍,《天然产物化学与研究》杂志涉及在自然界中发现的化合物,这些化合物通常具有药理或生物活性,可用于药物发现和药物设计。《天然产物化学与研究》强调与天然化合物的化学和生物化学研究或从中获得这些化合物的生命系统生物学相关的文章。《天然产物期刊》处于更高层次,加强了与天然产物密切相关的主题的情报和信息传播。他们为科学家们提供了一个独特的论坛来表达他们的研究文章、综述文章、案例报告和关于一系列天然产物研究的简短交流。天然产品同行评议杂志是熟练的支持普遍突出的编辑委员会成员。nature Products期刊影响因子的计算主要基于有能力的编辑委员会对文章进行双盲同行评审的文章数量,以确保文章的卓越性、工作的本质和同一篇发表文章的引用次数。自然产品开放获取文章的所有文章的摘要和全文在发表后立即免费提供给所有人。
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引用次数: 0
Standardization and Phytochemical Screening activity of Abrus Precatorius LinnRoot Extracts 鸡胸草根提取物标准化及植物化学筛选活性研究
Pub Date : 2021-01-01 DOI: 10.35248/2329-6836.21.9.395
Ashaolu Victoria Oladimeji
Abrus precatorius is one of the important medicinal plant belonging to the family Fabaceae. It is used as the common effective medicinal herb in many countries. The study plant has many therapeutic values like antiinflammatory, ant diabetic, antimicrobial and antioxidant activities. The present study deals with the physicochemical and preliminary phytochemical analysis of Abrus precatorius roots. Five different solvents like Hexane, Petroleum ether, Chloroform, Methanol, and Aqueous were used to obtain the extract. These extracts were subjected for physicochemical and qualitative phytochemical analysis by using the standard procedures. Physicochemical parameters like moisture content, total ash, water soluble ash and sulphated ash values were calculated. Alkaloids, flavonoids, glycosides and phenols are present in the all the extracts. These bioactive compounds obtained from the phytochemical analysis may be the responsible for the pharmaceutical activity.
Abrus precatorius是豆科重要药用植物之一。在许多国家,它被用作常见的有效草药。该植物具有抗炎症、抗糖尿病、抗菌和抗氧化等多种治疗价值。本研究对Abrus precatorius根进行了理化分析和初步的植物化学分析。用五种不同的溶剂,如己烷、石油醚、氯仿、甲醇和水溶液来获得提取物。采用标准程序对提取物进行理化和定性分析。物理- 化学参数,如水分含量,总灰分,水溶性灰分和硫酸盐灰分值计算。所有提取物中均含有生物碱、类黄酮、糖苷和酚类物质。从植物化学分析中获得的这些生物活性化合物可能是药物活性的原因。
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引用次数: 1
Bryophytes: Natural Biomonitors 苔藓植物:天然生物监测仪
Pub Date : 2020-11-16 DOI: 10.1201/9781003000693-7
Rajeev Singh, H. Joshi, Anamika Singh
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引用次数: 0
Biocontaminants in Occupational Perspectives: Basic Concepts and Methods 职业视角下的生物污染物:基本概念和方法
Pub Date : 2020-11-16 DOI: 10.1201/9781003000693-5
D. Mahapatra, D. Mahapatra
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引用次数: 0
Future Projects of Plant Natural Product Chemistry 植物天然产物化学的未来发展方向
Pub Date : 2020-01-01 DOI: 10.35248/2329-6836.20.8.E125
Hsung Rp
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引用次数: 0
Interaction of Metal Ions with Mono- and Polysaccharides for Wastewater Treatment: A Review 金属离子与单、多糖相互作用在废水处理中的研究进展
Pub Date : 2020-01-01 DOI: 10.35248/2329-6836.20.8.373
N. Joly, D. Ghemati, D. Aliouche, P. Martín
Chemical contamination of water from a wide range of toxic compounds, especially heavy metals, is a critical environmental problem due to their potential human toxicity. Therefore, development of technologies that allow the removal of toxic pollutants from wastewater is a need. Among all the common heavy metals treatment processes, biosorption is one of the more popular and efficient processes. The important number of publications concerning adsorption and remediation of metal ions from aqueous solution by natural and modified polysaccharides shows an increasing interest in biopolymer uses for environment preservation. The present review describes recent developments on biosorption processes using agricultural by-products, mainly mono- and polysaccharides extracted from natural resources. General considerations on metal ions complexation mechanism and interactions between metals and saccharides are first described. Then, a review on metal ions biosorption processes and recent development of new polysaccharide-based materials is carried out and shows their high adsorption capacities and their attractive character. Finally, advantages and possible limitations of using such biosorbents for metal ions adsorption process are discussed.
各种有毒化合物,特别是重金属对水的化学污染是一个严重的环境问题,因为它们对人体有潜在的毒性。因此,需要开发能够从废水中去除有毒污染物的技术。在所有常见的重金属处理工艺中,生物吸附法是最受欢迎和有效的方法之一。大量关于天然和改性多糖对水溶液中金属离子的吸附和修复的出版物表明,生物聚合物用于环境保护的兴趣日益增加。本文综述了近年来利用农业副产品,主要是从自然资源中提取的单糖和多糖进行生物吸附的研究进展。本文首先介绍了金属离子络合机理和金属与糖类之间的相互作用。然后,对金属离子的生物吸附工艺和新型多糖基材料的最新进展进行了综述,并指出它们具有较高的吸附能力和吸引人的特点。最后讨论了这种生物吸附剂在金属离子吸附过程中的优点和可能存在的局限性。
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引用次数: 10
Ethnobotanical and Phytochemical Studies on Indigenous Zingiber spp. (Zingiberaceae) from Tambunan District, Sabah, Borneo, Malaysia 马来西亚沙巴州,婆罗洲,坦布南地区本地姜属植物的民族植物学和植物化学研究
Pub Date : 2020-01-01 DOI: 10.35248/2329-6836.20.8.374
J. Kulip, Nawan Cst, Vairappan Cs, B. Jaumin
Studies on the ethnobotany and phytochemical on three species of wild Zingiber (Zingiberaceae) namely Z.Z. pseudopungens, Zingiber chlorobracteatum and Zingiber coloratum were conducted in Timbou Village, Tambunan District, Sabah, Borneo, Malaysia, Alab Mount and Mahua waterfall, Crocker Range from 1st Oct. until 7th Oct 2019. The objectives of these studies were to survey the ethnobotanical uses of the three wild Zingiber species used by the local Dusun communities of Tambunan, to extract essential oils from the major Zingiber species and lastly to determine the chemical components in the essential oils and to test it against bacteria. Ethnobotanical uses for these three Zingiber species are as follow, Z. pseudopungens leaves and stem are bitter; Z. viridifalvum sap is drinkable, medicine as anti-venom for snake-bite, pith cooked as soup and whole plant is for decorations and Z. coloratum plant is used as decorations, rhizome boiled made into soup and medicinal to treat diabetes. In this study, the preliminary phytochemical screening in both polar extract of ethanol and non-polar extract of n-hexane showed the presence of major secondary metabolites in these 3 types of studied Zingiber spp. GC-MS profiling gave the composition of few major compounds. Moreover, antibacterial assays of these oils had demonstrated that the Gram-positive bacteria in this study were more sensitive to the Zingiber spp. samples compared to the Gram-negative bacteria.
2019年10月1日至10月7日,在马来西亚沙巴州、婆罗洲、沙巴州Tambunan区Timbou村、Alab山和Crocker Range麻花瀑布对3种野生姜属植物Z.Z. pseudopungens、Zingiber chlorobrbrteatum和Zingiber coloratum进行了民族植物学和植物化学研究。这些研究的目的是调查Tambunan当地Dusun社区使用的三种野生姜属植物的民族植物学用途,从主要姜属植物中提取精油,最后确定精油中的化学成分并测试其抗细菌能力。这三种姜的民族植物学用途如下:假芽姜的叶和茎是苦的;绿豆树汁液可饮用,药用抗蛇毒,髓煮汤,整株作装饰,花豆树作装饰,根茎煮汤,药用治疗糖尿病。本研究对乙醇极性提取物和正己烷非极性提取物进行了初步的植物化学筛选,发现这3种类型的生姜均存在主要的次生代谢物,GC-MS谱分析给出了少数主要化合物的组成。此外,对这些精油的抗菌实验表明,本研究中革兰氏阳性菌对生姜样品的敏感性高于革兰氏阴性菌。
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引用次数: 0
A New Cytotoxic Glycocerebroside from Rauvolfia macrophylla Stapf. 一种新的细胞毒性糖脑苷。
Pub Date : 2020-01-01 DOI: 10.35248/2329-6836.20.8.389
M. D. Kaoke, Denis Kehdinga Sema, J. Dzoyem, P. B. Leutcha, F. Delie, E. Allémann, Wilfred Fon, N. Sewald, A. Lannang
The present study investigated secondary metabolites from stem bark of a Cameroonian medicinal plant Rauvolfia macrophylla Stapf, and their anti-proliferative activities against human leukaemia cell lines, THP-1 (mouse monocytic leukaemia cell lines) and mouse macrophage cell line Raw264.7 (human macrophage leukaemia cell lines). One new glycocereboside, Rauvocerebroside (1) with six other known compounds,; 11-methoxy-19-epiajmalicine (2), 19-epiajmalicine (3), Sucrose (4), Butulinic acid (6) and Lupeol (7) were isolated. Their structural elucidation was done using 1D and 2D NMR, IR and MS spectroscopy data together with published reviews. Analyses of the cytotoxicity of compounds (1), (2) and (3) displayed good activity of (1) on THP-1 (IC50 20.70 μM) and Raw 264.7 (IC50 26.34 μM) cancer cell lines. Compounds (2) and (3), showed moderate activity on THP-1 cells (IC50 43.23 μM for (2) and 34.25 μM for (3) and a low activity on Raw 264.7 cells. These results suggest that compounds (1), (2) and (3) could be potential anticancer agent.
本文研究了喀麦隆药用植物巨叶罗菲亚(Rauvolfia macrophylla Stapf)茎皮次生代谢产物对人白血病细胞系THP-1(小鼠单核细胞白血病细胞系)和小鼠巨噬细胞系Raw264.7(人巨噬细胞白血病细胞系)的抗增殖活性。一种新的脑糖苷,Rauvocerebroside(1)与其他六种已知化合物;分离得到11-甲氧基-19-epiajmalicine(2)、19-epiajmalicine(3)、蔗糖(4)、丁丁酸(6)和Lupeol(7)。利用一维和二维核磁共振、红外和质谱数据以及已发表的综述对它们的结构进行了阐明。对化合物(1)、(2)和(3)的细胞毒性分析表明,化合物(1)对THP-1 (IC50为20.70 μM)和Raw 264.7 (IC50为26.34 μM)癌细胞具有较好的活性。化合物(2)和(3)对THP-1细胞的IC50为43.23 μM(2)和34.25 μM(3),对Raw 264.7细胞的IC50较低。这些结果表明化合物(1)、(2)和(3)可能是潜在的抗癌剂。
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引用次数: 3
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Natural products chemistry & research
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