Natural Product Research (NAT PROD RES )

Publisher: Taylor & Francis

Description

The aim of Natural Product Research is to publish important contributions in the field of natural product chemistry. In order to be published in the shortest possible time, manuscripts are invited in camera ready state. The journal covers all aspects of research in the chemistry and biochemistry of naturally occurring compounds. The communications include coverage of work on natural substances of land and sea and of plants, microbes and animals. Discussions of structure elucidation, synthesis and experimental biosynthesis of natural products as well as developments of methods in these areas are welcomed in the journal. Finally, research papers in fields on the chemistry-biology boundary, eg. fermentation chemistry, plant tissue culture investigations etc., are accepted into the journal. The current impact factor is 0.527.

  • Impact factor
    1.03
    Show impact factor history
     
    Impact factor
  • 5-year impact
    1.06
  • Cited half-life
    4.20
  • Immediacy index
    0.14
  • Eigenfactor
    0.00
  • Article influence
    0.21
  • Website
    Natural Product Research website
  • Other titles
    Natural product research (Online), Natural product research
  • ISSN
    1478-6419
  • OCLC
    54039590
  • Material type
    Document, Periodical, Internet resource
  • Document type
    Internet Resource, Computer File, Journal / Magazine / Newspaper

Publisher details

Taylor & Francis

  • Pre-print
    • Author can archive a pre-print version
  • Post-print
    • Author cannot archive a post-print version
  • Restrictions
    • 12 month embargo for STM, Behavioural Science and Public Health Journals
    • 18 month embargo for SSH journals
  • Conditions
    • Some individual journals may have policies prohibiting pre-print archiving
    • Pre-print on authors own website, Institutional or Subject Repository
    • Post-print on authors own website, Institutional or Subject Repository
    • Publisher's version/PDF cannot be used
    • On a non-profit server
    • Published source must be acknowledged
    • Must link to publisher version
    • Set statements to accompany deposits (see policy)
    • Publisher will deposit to PMC on behalf of NIH authors.
    • STM: Science, Technology and Medicine
    • SSH: Social Science and Humanities
    • 'Taylor & Francis (Psychology Press)' is an imprint of 'Taylor & Francis'
  • Classification
    ​ yellow

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Carissa spinarum is a well-known medicinal plant which has been reported for its anthelmintic, antipyretic, antiviral, antimicrobial and antitumour activities. In this study, a reverse-phase high-performance liquid chromatographic method was developed for the simultaneous estimation of betulinic acid (BA) and ursolic acid (UA) in the methanol extract of C. spinarum root. The method was further validated for linearity, limit of detection (LOD 1⁄4 3.3s/S), limit of quantification (LOQ 1⁄4 10s/S), precision, accuracy and ruggedness. The linear response was obtained using the equation, y 1⁄4 511.5x þ 17603 (r 2 1⁄4 0.9920) and y 1⁄4 2886x þ 6821 (r 2 1⁄4 0.9935) for BA and UA, respectively. The LOD and LOQ were found to be 0.268 ^ 0.520 mg mL21, 0.878 ^ 0.183 mg mL21 for BA (0.58% w/w) and 3.140 ^ 0.36 mg mL21, 8.820 ^ 0.85 mg mL21 for UA (1.09% w/w), respectively. The %RSD of precision and recovery of BA and UA was ,2.0%. The proposed method was simple, accurate, specific, precise and reproducible.
    Natural Product Research 09/2014;
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    ABSTRACT: Transgenic Catharanthus roseus plants (transgenic Dhawal [DT] and transgenic Nirmal [NT]) obtained from the Agrobacterium tumefaciens and Agrobacteriumrhizognenes-mediated transformations, respectively, have been maintained in vitro for 5 years. Plants were studied at regular intervals for various parameters such as plant height, leaf size, multiplication rate, alkaloid profile and presence of marker genes. DT plant gradually lost the GUS gene expression and it was not detected in the fifth year while NT plant demonstrated the presence of genes rolA, rolB and rolC even in the fifth year, indicating the more stable nature of Ri transgene. Vindoline content in the DT was two times more than in non-transformed control plants. Alkaloid and tryptophan profiles were almost constant during the 5 years. The cluster analysis revealed that the DT plant is more close to the control Nirmal plant followed by NT plant.
    Natural Product Research 08/2014;
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    ABSTRACT: In a previous study, we evaluated the maternal and fetal safety of antimalarial herb Artemisia annua with artemisinin yield of 1.09%. Here, we attempted to ascertain the contraceptive claim of A. annua. Sexually matured female Wistar rats (180–220 g) were allotted into four study groups of six rats each. The control group received normal saline, while the A. annua-treated groups received 100, 200 and 300 mg/kg of A. annua for 2 weeks, followed by mating with proven fertile males (1:1). The rats were allowed to carry the pregnancy to term. At birth and weaning periods, selected reproductive outcome and fertility indices were determined. The results showed that A. annua significantly reduced litter size, reproductive outcome and fertility indices compared with the control ( p < 0.05). These results imply that A. annua could serve as a prospective contraceptive agent in addition to its antimalarial activity.
    Natural Product Research 07/2014;
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    ABSTRACT: A new cyclopeptide, together with three known amino acid derivatives, was isolated from marine-derived fungus Aspergillus flavipes, which was found in the gut of isopod Ligia oceanica. The novel peptide contains four amino acid units, proline, 5-methoxyanthranilic acid, isoleucine and 3-aminoacrylic acid. Its structure was determined on the basis of NMR, HR-MS and MS(n) spectral data analysis. The two unusual amino acid residues, 5-methoxyanthranilic acid and 3-aminoacrylic acid, were first found in natural product. The known compound N-benzoyl-phenylalanine methyl ester was first found as fungal metabolite. This is the first report of natural products isolated from marine gut fungi.
    Natural Product Research 07/2014; 28(13):994-997.
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    ABSTRACT: Pueraria tuberosa (Willd.) DC is a perennial herb commonly known as 'vidarikanda', distributed throughout south east Asia. The plant's tuber is widely used in ethanomedicine as well as in traditional systems of medicine, particularly in ayurveda. It has been used in various ayurvedic formulations as restorative tonic, antiaging, spermatogenic and immune booster and has been recommended for the treatment of cardiovascular diseases, hepatosplenomegaly, fertility disorders, menopausal syndrome, sexual debility and spermatorrhoea. Numerous bioactive phytochemicals, mostly isoflavonoids such as puerarin, genistein, daidzein, tuberosin and so on have been identified in the tuber. In vivo and in vitro studies have provided the support against traditional demands of the tuber as spermatogenic, immune booster, aphrodisiac, anti-inflammatory, cardiotonic and brain tonic. However, further studies are required to define the active phytochemical compositions and to validate its clinical utilisation in the herbal formulations for human uses. This review provides an overview of traditional applications, current knowledge on the phytochemistry, pharmacology and toxicology of P. tuberosa. This review also provides plausible hypotheses about how various isoflavones particularly puerarin, genistein and daidzein, individually or collectively, may be responsible for the therapeutic potential against a wide range of ailments.
    Natural Product Research 07/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: The chemical composition of three rockrose Cistus species, Cistus monspeliensis, Cistus libanotis and Cistus villosus, collected in Tunisia, was studied by HPTLC, focusing on the terpenes and phenols constituents. Diterpenes of Cistus are important as the main constituents of the leaf sticky aromatic resin, known as labdanum, which are highly appreciated in perfumery. Polyphenols in the methanolic extracts of each species were identified, quantified as total and as flavonoids and tannins, and tested for antioxidant activity. Diterpenes were evident in C. libanotis and C. monspeliensis, whereas they were practically absent in C. villosus; C. libanotis had higher phenolic amount, whereas antioxidant activities were important, but different according to the following tests: DPPH radical scavenging, conversion of the Fe(3+/)ferricyanide complex and inhibition of β-carotene bleaching. The reported data confirm the validity of utilisation of Cistus sp. in marketed herbal products, as well as the relevant presence of diterpenes in species actually not used for labdanum production.
    Natural Product Research 07/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: A new quassinoid, shinjulactone O (1), and seven known quassinoids, were isolated from the 50% ethanol extract of the root bark of Ailanthus altissima. The structures of these compounds were determined based on spectroscopic methods including UV, IR, HR-ESI-MS, 1D and 2D NMR. Their cytotoxic activities were evaluated on the tumour cell lines MCF-7, MDA-MB-231, HepG2 and A549 cells, as well as the normal HUVEC line in vitro. Compounds 1-8 exhibited different levels of inhibitory activity against tumour cell lines.
    Natural Product Research 06/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: A new polyhydroxylated flavane (1) was identified from Albizia ferruginea (Mimosoideae) along with 4',7-dihydroxyflavan-3,4-diol (2), julibrosides A1-A3 (3-5). The structures of the compounds were established based on their NMR and mass spectrometric data in conjunction with those previously reported in the literature. Compounds 1 and 5 displayed moderate antibacterial activities.
    Natural Product Research 06/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: We aimed to investigate the vascular effects of methanol extract (ME) and aqueous extract (AE) of Alchemilla vulgaris (Rosaceaea). Increasing concentrations of the ME (0.01-10 mg/mL) produced relaxations in noradrenaline (NA: 10(- 6) M) and K(+) (40 mM) precontracted aortas while contractions were obtained with the AE (0.01-10 mg/mL). Responses to the ME were inhibited in the presence of putative inhibitors of endothelial vasodilators or after removal of the endothelium. Pretreatment of aortic rings with the ME (10 mg/mL, 20 min) reduced the maximal contractions to NA and K(+), whereas an enhanced contractility was observed with the AE (10 mg/mL, 20 min). Total flavonoid content was higher in the ME than in the AE. Quercetin was determined particularly high in the ME while gallic acid was high in the AE. Our results indicated that the ME of A. vulgaris displays favourable vascular effects via endothelium-dependent mechanisms.
    Natural Product Research 06/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Two new bufadienolide glycosides (1 and 2) with an A/B trans ring fusion together with nine known compounds (3–11) were isolated from the rhizomes of Helleborus thibetanus. The structures of new compounds were elucidated by extensive spectroscopic analyses in combination with single-crystal X-ray diffraction. The bufadienolides 1 and 3–6 exhibited potent cytotoxic activities against the prostate cancer cells.
    Natural Product Research 06/2014; 28(12).
  • [Show abstract] [Hide abstract]
    ABSTRACT: Five compounds were isolated altogether from the two medicinal plants. Glycerol monotricosanoate (1), palmarumycin BG1 (2) and de-O-methyllasiodiplodin (3) were isolated from Gouania longipetala. In addition, epicatechin (4) and its dimer procyanidin B2 (5) were isolated from the stem bark of Glyphaea brevis. Their structures were elucidated by using spectroscopic experiments. They exhibited radical scavenging and moderate antibacterial effects.
    Natural Product Research 06/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: Cucurbitacin C, a bitter substance in Cucumis sativus L., was isolated from green leaves by using phytochemical methods. An analytical method using high-performance liquid chromatography (HPLC) was established for the quantification of cucurbitacin C in different parts of the cucumber plant at different growth periods. Cucurbitacin C was detected in the leaves and stems but not in the female flowers, fruits, roots and leafstalks. The level of cucurbitacin C decreased significantly with the process of young leaves turning old. A new compound named 23,24-dihydrocucurbitacin C, regarded as the next metabolite of cucurbitacin C, was determined unambiguously by HPLC-quadrupole-time-of-flight mass spectrometry and nuclear magnetic resonance.
    Natural Product Research 06/2014;
  • [Show abstract] [Hide abstract]
    ABSTRACT: The essential oils of the flowers of Magydaris tomentosa (Desf.) DC. (Apiaceae) collected in Sicily (MSi) and Algeria (MAl), respectively, were obtained by hydrodistillation, and their compositions were analysed. The analyses allowed the identification and quantification of 23 components in MSi and 60 compounds in MAl, respectively, showing a very different profile in the composition of the two populations. The main components of MSi were cembrene (28.2%), α-springene (17.5%) and β-springene (14.8%), also present in MAl but in lesser amount (0.4%, 1.8% and 0.9%, respectively), whereas the principal constituents of MAl were (E)-nerolidol (35.4%), α-costol (13.3%) and β-costol (6.8%). Both MSi and MAl exhibited a significant antibacterial activity against Staphylococcus epidermidis (minimum inhibitory concentration = 25 and 12.5 μg/mL, respectively). The chemotaxonomy markers of the species were identified.
    Natural Product Research 05/2014;
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    ABSTRACT: Plants, in their life cycle, are usually exposed to various kinds of non-biological stresses including heavy metals. One of these heavy metals is nickel which affects many physiological processes of plants. Studies have shown that the changes in planting conditions can affect the qualitative and quantitative features of Catharanthus roseus; therefore, creating stressful conditions (e.g. NiCl2) can be an effective way to investigate the changes. In this research, we investigated the effect of 0, 2.5, 5, 10, 25 and 50 mM concentrations of NiCl2 on the degree of catalase enzyme activity, amount of proline aggregation and photosynthetic parameters on seeds of pink variety of C. roseus. The results indicated that the degree of catalase enzyme activity and the amount of proline aggregation increased in plants which were exposed to NiCl2 treatments, especially in high concentrations, while the total protein decreased. The stress of Ni also affected photosynthetic parameters, and decreased the amount of pigments, as well as the efficiency of photosystem II.
    Natural Product Research 05/2014;

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