scholarly journals Phytochemistry and GC-MS Screening and Biocidal Potentiality of Ginger (Zingiber officinale) Rhizome against Mosquito’s Larvae

2021 ◽  
Vol 3 (2) ◽  
pp. 090-096
Author(s):  
Dalia Mustafa M Elbashir ◽  
Mutaman AA Kehail ◽  
Abdalla I Abdalla Mohamed ◽  
Abdelmonem Eltiyab H Ali

Mosquitoes can act as vectors for many viruses and parasites through carrying these organisms from person to person. Although great number of natural products are lethal to mosquitoes, but few researches are conducted to understand the magnitude of the behavioral response to these plant parts. The objectives of this study were to screen the phytochemical and other chemical components from ginger rhizome in addition to test their aqueous and ethanol extracts on mosquito’s larvae. The standard methods, materials and devices were used to screen the phytochemical components and the chemical constituents (GC-MS). The aqueous and the ethanol extracts from clove pods were prepared and used against Anopheles, Culex and Aedes larvae. The results of the aqueous extract showed that, the LC50 was 153.77 mg/L for Anopheles larvae, 179.05 mg/L for Culex larvae, and 208.37 mg/L for Aedes larvae, also the ethanol extract of ginger rhizome was more potent than the aqueous extract. The biocidal activity can be attributed to the presence of saponins, flavonoids, glycosides, alkaloids and steroids. The GC-MS for the hexane extract showed the presence of alkaloid: gingerol (18%) and eugenyl acetate- (19%) that gives the sweet aromatic, spicy taste, but the ethanol extract detected gingerol (43%) and zingiberene (14%). The obtained data will be useful to understand the mechanisms and reasons of biocidal activity of ginger rhizome against the tested mosquito’s larvae.

2021 ◽  
Vol 3 (2) ◽  
pp. 083-089
Author(s):  
Dalia Mustafa M. Elbashir ◽  
Mutaman AA Kehail ◽  
Yasir Mohamed Abdelrahim ◽  
Abdelmonem Eltiyab H Ali

Many measures have been used for mosquito control, including the elimination of breeding places, exclusion via window screens and mosquito nets in addition to natural products including clove (Syzygium aromaticum). This study was run at University of Gezira, Sudan, to run phytochemical and GC-MS screening for clove pods before used it as mosquito control agent. The standard methods, materials and devices were used to screen the phytochemical components and the chemical constituents (GC-MS). The WHO protocol for testing the susceptibility of mosquito’s larvae to insecticides was followed in bioassay. The aqueous and the ethanol extracts from clove pods were prepared and used against Anopheles, Culex and Aedes larvae. The results showed that, Aedes mosquito was relatively more susceptible (LC50= 498 mg/L) to clove aqueous extract than Anopheles (LC50= 561 mg/L) and Culex (LC50= 615 mg/L), and similar findings were observed for clove pods ethanol extract, which is relatively more potent than the aqueous extract. The biocidal activity can be attributed to the presence of the detected saponins, flavonoids, tannins and alkaloids. The GC-MS for the ethanol extract showed that, the principal compounds were Eugenol (81%) and caryophyllene (4.65%). Further studies should be run to improve knowledge about how to use this natural product in more economic trends.


2020 ◽  
Vol 10 (03) ◽  
pp. 109-115
Author(s):  
Shreya Udaya ◽  
Nishith Babu ◽  
Dechamma Pandyanda Nanjappa ◽  
Krithika Kalladka ◽  
Gunimala Chakraborty ◽  
...  

Abstract Objective This study was aimed at evaluating the toxicity and the antioxidant property of Cassia fistula stem bark extracts in zebrafish. Materials and Methods Crude aqueous and ethanol extracts of C. fistula stem bark were obtained following a standard solvent-based extraction method. The toxicity of these extracts on zebrafish embryonic development was determined and the LC50 values were calculated. Finally, the antioxidant property of C. fistula stem bark extracts was determined in arsenic-induced oxidative stress models of zebrafish. Results The aqueous extract of C. fistula stem bark showed a slightly larger LC50 value (213.6 ppm) compared with the ethanol extract (LC50 = 63.5 ppm), suggesting a lower toxicity of the aqueous extract. A significant reduction of reactive oxygen species (ROS) signal was observed in arsenic-exposed embryos treated with the aqueous extract, but not the ethanol extract, indicating that the antioxidant activity is present only in the aqueous extract of C. fistula stem bark. Conclusion Identification of antioxidants from natural sources is desirable because of increasing safety concerns associated with synthetic antioxidants. This study demonstrated that aqueous extract from C. fistula stem bark possesses antioxidant properties, which can be further characterized for mechanism of action and potential applications.


2000 ◽  
Vol 74 (3) ◽  
pp. 241-246 ◽  
Author(s):  
W. Khunkitti ◽  
Y. Fujimaki ◽  
Y. Aoki

AbstractThe in vitro effects of ethanol and aqueous extracts of the medicinal plant Cardiospermum halicacabum on adult worms and microfilariae of Brugia pahangi were investigated. With or without the plant extracts in culture medium, the motility of adult worms, microfilariae and microfilarial release from female worms were monitored daily. After 7 days of culture, viability or tissue damage of adult worms was assessed using the MTT assay. At > 500 μg ml-1, the aqueous extract significantly reduced motility of adult females after 24 h of exposure and adult males after 3 days. The aqueous extract, at > 500 μg ml-1, also significantly reduced microfilarial release from female worms, starting on day 2. The reduction in the motility of adult worms and the pattern of microfilarial release from female worms were concentration and time dependent. The MTT assay results revealed that adult worms cultured in the presence of aqueous extracts at > 500 μg ml-1 were damaged. However, the aqueous extract did not affect the motility of microfilariae with the exception of those in higher concentration extracts. Higher concentrations of ethanol extracts (2 mg ml-1) inhibited both the motility of adult worms and the release of microfilariae from females. Little effect of ethanol extracts was detected by the MTT assay, as only slight damage was caused to worms exposed only to the highest concentration (2 mg ml-1). However, ethanol extract at 500 μg ml-1 rapidly reduced the motility of microfilariae on day 2. The present study revealed that an aqueous extract of C. halicacabum has mild but definite direct macrofilaricidal action on B. pahangi.


2019 ◽  
Vol 20 (5) ◽  
Author(s):  
SRI RAHAYU ◽  
LENNI FITRI ◽  
YULIA SARI ISMAIL

Abstract. Rahayu S, Fitri L, Ismail YS. 2019. Short communication: Endophytic actinobacteria isolated from ginger (Zingiber officinale) and its potential as a pancreatic lipase inhibitor and its toxicity. Biodiversitas 20: 1312-1317.  Endophytic actinobacteria from ginger (Zingiber officinale Rosc.) is a bacterium that is capable of producing secondary metabolites that are the same as their hosts. This study aims to look at the potential of endophytic actinobacteria from ginger as a pancreatic lipase inhibitor and its toxicity. Endophytic actinobacteria were isolated, purified, then tested for pancreatic lipase inhibitors and their toxicity using the BSLT method (Brine Shrimp Lethality Test) and phytochemical tested on ethanol extract of selected isolates. Seven endophytic actinobacterial isolates were isolated from the ginger rhizome. The isolates had different morphological diversity based on colony and microscopic observations and 5 isolates had pancreatic lipase inhibitor activity. The highest inhibitors were found in AJ4 isolates (89.9%), compared with pancreatic lipase inhibitors crude extracts of ginger (68.9%) and orlistat (88.1%) as positive controls. The LC50 value of AJ4 isolates was 653,381 ppm and the value of LT50 was 17,569 hours. AJ4 isolates contain terpenoids, phenols, tannins, flavonoids, alkaloids, and saponins. This research data is considered as new information about the potential of endophytic actinobacteria from ginger as pancreatic lipase inhibitors and their toxicity.


2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Hariyadi D M ◽  
Setyawan D ◽  
Suciati D1 ◽  
Widyowati R ◽  
Chang H-I ◽  
...  

Objective: The aim of the research was to extract the deer antler velvet from Kalimantan Indonesia and to study physical characteristics between 70% ethanol and aqueous extract. Materials and methods: Ethanol extracts was extracted from deer antler velvet using maceration and modified maceration method. Ethanol extracts were compared to aqueous extract which produced using maceration technique. The extract profiles were determined by screening test and physicochemical properties as preformulation study were characterized using Thin Layer Chromatography (TLC), Nuclear Magnetic Resonance (NMR), X-ray diffractometer, differential thermal analysis (DTA), solubility test, BCA protein content, and molecular weight using SDS PAGE assay. Results: Extracts were successfully prepared and determined. Physicochemical properties of 70% ethanol extract and aqueous extract resulted different characteristics in melting point, solubility, crystallinity and protein content. Both ethanol extract and aqueous deer antler velvet extract contained group compounds of terpenoids and steroids and contains high amount of proteins at molecular weight of 17 to 43 kDa. In terms of crystallinity, ethanol and aqueous extracts had different crystal lattices. Conclusion: The aqueous extract of deer antler velvet was then recommended for further in vitro drug formulation and characterization. The molecular weight of majority protein inside aqueous deer antler velvet extract was 17 kDa and this datas will be useful for further drug formulation


2019 ◽  
pp. 129-134
Author(s):  
Sitara Jalal Mustafayeva ◽  
Sirajeddin Veli Serkerov ◽  
Konul Farrux Bakhshaliyeva

The qualitative and quantitative composition of chemical components of ethanol extract of the above-ground part of Anthemis altissima L. (syn. Cota altissima (L.) J.Gay) species (family Asteraceae) collected during flowering phase from the flora of Azerbaijan has been studied. The chemical composition of ethanol extract was analyzed by chromatography-mass-spectrometry methods. 54 components were identified in the extract. As a result of the study, it was found that the A. altissima contained benzene aromatic compounds (77.21%). Among them Benzene, (1-butylheptyl) – 7.84%, Benzene, (1-propyloctyl) – 7.71%, Benzene, (1-pentyloctyl) – 7.03%, Benzene, (1-pentylheptyl) – 5.69%, Benzene, (1-butyloctyl) – 5.37%, Benzene, (1-propylnonyl) – 5.02% were the main components.  In addition to the above components in the extract of the aerial part other biological active substances, such as alcohols (6.37% – of them prevail Hop-22(29)-en-3. β.-ol – 1.53%, γ-Sitosterol – 1.32%), esters of acids (5.3% – of them prevail Hexadecanoic acid, ethyl ester – 0.88%; Linoleic acid, ethyl ester – 0.63%) and alkanes (1.64% – of them prevail Eicosane – 0.53%; Pentacosane – 0.40%) were also identified. The share of unidentified components was 8.99%. The article also presents the results of the study of the antifungal properties of A. altissima and its aqueous extract against the culture of pathogenic fungi Fusarium oxysporium and Aspergillus niger. The aqueous extract of A. altissima, in contrast to the plant itself, shows a fungistatic effect on the fungi Fusarium oxysporum and Aspergillus niger.


Author(s):  
K. O. Gbagbeke ◽  
A. O. Naiho ◽  
P. R. C. Esegbue ◽  
M. O. Odigie ◽  
M. A. Omoirri

Characterised by abnormal increase in blood glucose level, Diabetes is a metabolic disorder that is associated with complications in carbohydrate, protein and fat metabolism. In recent times, medicinal herbs have been implicated in traditional medical practice for the treatment of this ailment. Studies have shown that Buchholzia coriacea seed possesses some anti-hyperglycemic properties that may be useful in the management of diabetes. To this point, present study investigated the effect(s) of oral administration of aqueous and ethanol extracts of Buchholzia coriacea on some carbohydrate metabolism parameters in normal and alloxan-induced diabetic rats. Forty (40) adult rats of both sexes were randomly assigned into two groups (normoglycemic and hyperglycemic). While group 1 (normoglycemic) had normal control, metformin, aqueous extract (250mg/kg) and ethanol extract (250 mg/kg) treated sub-groups respectively, Group 2 (hyperglycemic) contained the diabetic control, metformin, aqueous extract (250 mg/kg), and ethanol extracted (250mg/kg) treated sub-groups dosed daily by oral gavage for 14 days. At the end of the treatment, rats were euthanized via cervical dislocation; blood samples were collected by cardiac puncture for statistical analysis. One-way analysis of variance (ANOVA) revealed that dosing with extracts had insignificant effect(s) on body weight of rats. Fasting Blood Glucose (FBG) levels were elevated before and after extracts administration. Metformin, aqueous and ethanol extracts significantly reduced (p<0.05) FBG levels. Also, compared with control, total carbohydrate, liver glucose, glycosylated haemoglobin, Lactate Dehydrogenase, Isocitrate dehydrogenase, MDH, SDH, 6-phosphogluconate dehydrogenase, G6PD and CcO activities were significantly reduced (p<0.05) in diabetic treated rats. Buccholzia Coriacea was therefore seen to pose hypoglycemic and glycolytic effects, regulating activities of carbohydrate metabolic enzymes. Apparently, there is a scientific merit in the use of the extract in the management of diabetes.


2019 ◽  
Vol 1 (4) ◽  
pp. 199-216 ◽  
Author(s):  
Khine Zar Wynn Lae ◽  
Su Swe Su ◽  
Nwet Nwet Win ◽  
Ni Ni Than ◽  
Hla Ngwe

A large number of the plants are claimed to possess the antibiotic properties in the traditional system and are also used extensively by the tribal people throughout the world. It is now mostly thought that nature has given the cure of every disease in one form or another. Plants have been known to cure people from various diseases in Ayurveda. This research focused on the screening of phytochemicals and some biological activities of Phyllanthus albizzioides. The research showed that the ethanol extracts were found to be greater chemical constituents than watery extracts. Among the chemical constituents, steroid compounds were observed in highest amount in ethanol extract and the second highest in flavonoid compounds followed by tannin compounds and pheolic compounds. Furthermore, the ethanol extracts were more effective than the watery extracts in all tested biological activities such as antioxidant, anti-diabetic, cytotoxicity, antimicrobial, antitumor and NO inhibition activities. A cyclohexanone compound was isolated from the chloroform extract of the stem bark of P. albizzioides. The relative structure was determined to be 4,5-dihydroxy-3-methyl-cyclohex-2-enone on the basic of HRESIMS, 1H NMR and 13C NMR spectroscopic analyses, including 2D NMR experiments.


2014 ◽  
Vol 36 (spe1) ◽  
pp. 315-337 ◽  
Author(s):  
Gina Frausin ◽  
Renata Braga Souza Lima ◽  
Ari de Freitas Hidalgo ◽  
Paul Maas ◽  
Adrian Martin Pohlit

Species of the Annonaceae family are used all over the tropics in traditional medicine in tropical regions for the treatment of malaria and other illnesses. Phytochemical studies of this family have revealed chemical components which could offer new alternatives for the treatment and control of malaria. Searches in scientific reference sites (SciFinder Scholar, Scielo, PubMed, ScienceDirect and ISI Web of Science) and a bibliographic literature search for species of Annonaceae used traditionally to treat malaria and fever were carried out. This family contains 2,100 species in 123 genera. We encountered 113 articles reporting medicinal use of one or more species of this family including 63 species in 27 genera with uses as antimalarials and febrifuges. Even though the same species of Annonaceae are used by diverse ethnic groups, different plant parts are often chosen for applications, and diverse methods of preparation and treatment are used. The ethanol extracts of Polyalthia debilis and Xylopia aromatica proved to be quite active against Plasmodium falciparum in vitro (median inhibition concentration, IC50 < 1.5 µg/mL). Intraperitoneal injection of Annickia chlorantha aqueous extracts (cited as Enantia chlorantha) cleared chloroquine-resistant Plasmodium yoelii nigeriensis from the blood of mice in a dose-dependant manner. More phytochemical profiles of Annonaceous species are required; especially information on the more commonly distributed antimalarial compounds in this family.


2015 ◽  
Vol 61 (1) ◽  
pp. 31-38 ◽  
Author(s):  
Mohaddese Mahboubi ◽  
Atefeh Mahboubi ◽  
Nastaran Kazempour

Summary Prunella vulgaris ( Labiatae family) or self-heal is traditionally used for different ailments such as eye pain and inflammation, headache, dizziness, sore throat and wound healing. Total phenolic and total flavonoid contents of extracts (methanol, ethanol and aqueous) were determined by a spectrophotometer. The antimicrobial activity was evaluated by micro broth dilution assay. The total phenolic content of P. vulgaris extracts were higher in aqueous extract (156.5 mg GAC/g) followed by ethanol extract and methanol extract. The TFC content of P. vulgaris methanol extract (82.8 mg QE/g) was higher than ethanol extract (22.7 mg QE/g) and aqueous extract (16.2 mg QE/g). The antimicrobial activity of methanol or ethanol extracts was higher than aqueous extract from P. vulgaris. The sensitivity of microorganisms to different extracts is related to type of pathogens. There is no positive relation between total phenolic content and its antimicrobial activity. Prunella vulgaris ethanolic extract as a source of phenolic and flavonoid contents can be used as an antimicrobial agent.


Sign in / Sign up

Export Citation Format

Share Document