scholarly journals Underlying Mechanisms of Anti-spasmodic, Antidiarrheal, Antioxidant and Acute Toxicity Assessments of Aqueous Extract of Mentha Suaveolens Ehrh and its Fourier Transform Infra-red Spectroscopy Analysis

2020 ◽  
pp. 37-54
Author(s):  
EL-Akhal Jamila ◽  
Chda Alae ◽  
Tazi Abdelali ◽  
Boukir Abdelatif ◽  
Bencheikh Rachid
Keyword(s):  
Fourier Transform ◽  
Animal Models ◽  
Functional Groups ◽  
Aqueous Extract ◽  
Castor Oil ◽  
Butylated Hydroxytoluene ◽  
Calcium Antagonism ◽  
Small Intestinal Transit ◽  
Infra Red ◽  
Underlying Mechanisms

Objective: The aim of this present study is to investigate the antidiarrheal, spasmolytic and antioxidant activities of aqueous extract of Mentha suaveolens Ehrh (AEMS), to study their underlying mechanisms in animal models and to reveal its main functional groups using Fourier Transform Infra-Red Spectroscopy (FTIR). Methods: Mentha suaveolens Ehrh was studied for antidiarrheal activity on Wistar rats of both sexes at the doses of 200 and 800 mg/kg body weight using castor oil-induced diarrhea, castor oil-induced enteropooling and small intestinal transit models. The extract was studied for antispasmodic property in isolated rabbit jejunum using various spasmogenic agents including Ach (10-5M), KCl (100 mM) and in the absence and in the presence of L-NAME (10-4 M) and the methylene blue (10-5 M).The antioxidant capacity of AEMS was carried out using DPPH radical scavenging activity and the ferric reducing antioxidant potential (FRAP). Ascorbic acid and Butylated HydroxyToluene (BHT) were used as references. The functional chemical groups were determined by FTIR. Results: The great antidiarrheal potential of AEMS seems to be mediated through calcium antagonism. The marked and concentration-dependent induced spasmolytic effect of AEMS appears to involve Ca2+ voltage channel blockade and the NO/cGMP pathway activation. AEMS possessed strong and concentration-dependent antioxidant potency using DPPH and FRAP. Polyphenols, carboxyl and carbohydrates were found to be the main functional groups in the AEMS analyzed by FTIR. Conclusion: Overall, our current findings provide scientific proves in animal models for the traditional use of AEMS in folk medicine for the prevention or the treatment of gastrointestinal diseases in Morocco.

scholarly journals PENGARUH WAKTU CURING TERHADAP KUAT TEKAN GEOPOLIMER BERBASIS FLY ASH

2019 ◽  
Vol 2 (1) ◽  
pp. 50
Author(s):  
Andrie Harmaji ◽  
Claudia Claudia ◽  
Lia Asri ◽  
Bambang Sunendar ◽  
Ahmad Nuruddin
Keyword(s):  
Compressive Strength ◽  
Fourier Transform ◽  
Fly Ash ◽  
Power Plant ◽  
Functional Groups ◽  
Room Temperature ◽  
Three Dimensional ◽  
Fine Aggregate ◽  
Alkali Activator ◽  
Infra Red

Abstract:. Suralaya power plant produces fly ash about 219.000 ton per year. Fly ash contents of silica and alumina as major components that can be used as precursors for geopolymer, a three dimensional networks aluminosilicate polymers. This research aim is to utilize fly ash for geopolymer made by mixing fly ash, fine aggregate, and alkali activator in a cubic mould and curing was carried out at room temperature for 7 and 28 days. After 28 days of curing the compressive strength of geopolymer reached 41.70 MPa. XRD characterization shows Albite (NaAlSi3O8) formation which has similarity to geopolymer compound. Fourier Transform Infra Red spectra show siloxo and sialate bond. These are typical functional groups that are found in geopolymer materials.Keyword: geopolymer, fly ash, aluminosilicate, alkali activator, albite, siloxo, sialateAbstrak: Pembangkit Listrik Tenaga Uap (PLTU) Suralaya menghasilkan fly ash (abu terbang) sekitar 219.000 ton per tahun. Fly ash memiliki silika dan alumina sebagai komponen utama yang dapat digunakan sebagai prekursor untuk geopolimer, suatu material polimer aluminosilikat tiga dimensi. Penelitian ini bertujuan untuk memanfaatkan fly ash untuk geopolimer yang dibuat dengan mencampur fly ash, agregat halus, dan aktivator alkali dalam cetakan kubik dan pengawetan dilakukan pada suhu kamar selama 7 dan 28 hari. Setelah 28 hari curing kekuatan tekan geopolimer mencapai 41,70 MPa. Karakterisasi XRD menunjukkan pembentukan Albite (NaAlSi3O8) yang memiliki kemiripan dengan senyawa geopolimer. Hasil spektroskopi Fourier Transform Infra Red (FTIR) menunjukkan ikatan siloxo dan sialate yang merupakan gugus fungsional khas yang ditemukan dalam geopolimer.Kata Kunci: geopolimer, abu terbang, aluminosilikat, alkali aktivator, albite, siloxo, sialate

scholarly journals Antifungal Activity and Fourier Transform Infrared Spectrometric Characterization of Aqueous Extracts of Acacia senegal and Acacia tortilis on Phytopathogenic Fungi

2019 ◽  
pp. 1-11
Author(s):  
Al-Otibi Fatimah
Keyword(s):  
Fourier Transform ◽  
Antifungal Activity ◽  
Functional Groups ◽  
Aqueous Extract ◽  
Phytopathogenic Fungi ◽  
Aqueous Extracts ◽  
Acacia Tortilis ◽  
Acacia Senegal ◽  
High Concentrations ◽  
Scanning Electron

Objective: To evaluate the in vitro antifungal activity of aqueous extracts of Acacia senegal (A. senegal) and Acacia tortilis (A. tortilis) against three phytopathogenic fungi (viz., Alternaria alternata [A. alternata], Helminthosporium rostratum [H. rostratum] and Fusarium solani [F. solani]). Methods: Crude aqueous extracts of A. senegal and A. tortilis at 1%, 2.5% and 5% concentrations were used for screening. Antifungal activities of the extracts were evaluated against three phytopathogenic fungal strains (A. alternata, H. rostratum and F. solani) by poisoned food technique. Scanning electron microscopy (SEM) of the treated and untreated mycelia was employed to analyze the ultrastructural changes and Fourier-transform infrared (FTIR) spectrometry analysis was performed to identify important functional groups. Results: Aqueous extract of A. tortilis at high concentrations exhibited moderate inhibitory activity against the selected fungal strains. The aqueous extract of A. senegal showed no effect on A. alternata, while exhibited very mild activity against H. rostratum and F. solani at high concentrations (2.5% and 5%). Scanning electron microphotographs of the untreated fungal cells showed no structural changes (well‒defined mycelium and conidia without any distortion), whereas the treated cells showed structural distortions, twisted and wrecked mycelia and showed the presence of vesicles on the surface. FTIR analysis showed the presence of important functional groups such as alcohols, carboxylic acids and aromatic compounds. Conclusion: Results from this study indicate that the aqueous extracts of both A. senegal and A. tortilis have the potential to be used as natural fungicidal agents in the management of diseases caused by plant pathogenic fungi.

scholarly journals Process Optimization for the Synthesis of Silver (AgNPs), Iron Oxide (α-Fe2O3NPs) and Core-Shell (Ag-Fe2O3CNPs) Nanoparticles Using the Aqueous Extract of Alstonia Scholaris: A Greener Approach

2018 ◽  
Vol 12 (1) ◽  
pp. 29-39 ◽  
Author(s):  
Navinchandra G. Shimpi ◽  
Mujahid Khan ◽  
Sharda Shirole ◽  
Shriram Sonawane
Keyword(s):  
Fourier Transform ◽  
Iron Oxide ◽  
Aqueous Extract ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Alstonia Scholaris ◽  
Transmission Electron ◽  
Infra Red ◽  
High Level ◽  
Core Shell Nanoparticles

Objective:The present study is deals with the green synthesis of silver (AgNPs), iron oxide (α-Fe2O3NPs) and core-shell (Ag-α-Fe2O3CNPs) nanoparticles using the aqueous extract ofAlstonia scholariswithout any catalyst, template or surfactant or any intermediate under ultrasound cavitation technique. The purpose was to facilitate the high level of dispersion with increase in rate of reaction. Further AgNPs and α-Fe2O3NPs were used to synthesis Ag-Fe2O3CNPs in aqueous extract ofAlstonia scholarisunder controlled ultrasound cavitation technique.Methods:The size of AgNPs and Ag-Fe2O3CNPs can be tuned by optimizing various reaction parameters. UV-visible, X-ray diffraction spectroscopy (XRD), Transmission electron microscopy (TEM), Field emission scanning electron microscope (FE-SEM) and Fourier transform infra-red spectroscopy has been used for the characterization of silver and core shell Ag@Fe2O3nanoparticles. TEM images clearly show the formation of core shell nanoparticles with spherical morphology.Result:Fourier transform infra-red spectroscopy analysis revealed that carbohydrate, polyphenols, and protein molecules were involved in the synthesis and capping of silver, iron oxide and Ag@Fe2O3CNPs.

Rhizophora apiculata Extract as Corrosion Inhibitor in 3.5% NaCl for API 5L Steel

2018 ◽  
Vol 791 ◽  
pp. 83-87
Author(s):  
Femiana Gapsari ◽  
Putu Hadi Setyarini ◽  
Andita N.F. Ganda
Keyword(s):  
Weight Loss ◽  
Fourier Transform ◽  
Corrosion Rate ◽  
Corrosion Inhibitor ◽  
Functional Groups ◽  
Inhibition Efficiency ◽  
Steel Corrosion ◽  
Polarization Method ◽  
Infra Red ◽  
Corrosion Inhibition Efficiency

The corrosion inhibition efficiency of Rhizophora acipulata(RA) extract was investigated for API 5L Steel corrosion in 3.5% NaCl using weight loss and polarization method. Fourier Transform Infra-Red (FTIR) was used toanalyze the characteristics of extract RA functional groups. The weight loss and polarization result indicated that extract RA inhibited API 5L steel corrosion rate. Based on the polarization result, the inhibition efficiency reached up 97.52% with addition 100ppm of RA extract.

scholarly journals The Analysis of Silica From Rice Husks Siam Unus from South Kalimantan

2021 ◽  
Vol 9 (2) ◽  
pp. 81-87
Author(s):  
Dwi Rasy Mujiyanti ◽  
Dahlena Ariyani ◽  
Muna Lisa
Keyword(s):  
Fourier Transform ◽  
Functional Groups ◽  
Rice Husk ◽  
Functional Group ◽  
Optimum Temperature ◽  
Rice Husks ◽  
White Rice ◽  
X Ray ◽  
Infra Red

Research on analysis of rice husk content of Siam Unus with various NaOH concentrations (1.0 M; 1.5 M; 2.0 M; 2.5 M; 3.0 M) has been done. This study aims to obtain data on the effect of variations in NaOH concentration on the purity of the silica extract from Siam Unus rice husks and silica characterization of Siam Unus rice husks using Fourier Transform Infra-Red (FTIR) and X-ray fluorescence spectrometry (XRF). The results showed that the combustion of rice husks at 200 °C as optimum temperature for 1 hour followed by combustion at 600 °C for 4 hours produces grayish-white rice husks with a yield is 20.70%. Silica functional group characterization showed that silanol (Si-OH) and siloxane (Si-O-Si) as dominant functional groups. The result of composition characterization using XRF showed that SiO2 as the dominant compound with the highest percentage of SiO2 is 1.5 M NaOH extract at 42.80%.

scholarly journals ADSORPTION OF Th-232 AND U-238 BY γ- Al2O3-HUMATE AT SINGLE AND COMPETITIVE SYSTEMS

2010 ◽  
Vol 8 (2) ◽  
pp. 163-168
Author(s):  
Muzakky Muzakky ◽  
Sri Juari Santosa
Keyword(s):  
Fourier Transform ◽  
Functional Groups ◽  
Regression Line ◽  
Single System ◽  
Competitive System ◽  
Competitive Systems ◽  
Adsorption Capacities ◽  
Infra Red ◽  
As Adsorption

The calculation experiments of adsorption capacities of Th-232 and U-238 in γ- Al2O3-humate at single system and competitive with Freundlich method has been done. The purpose of the research is (1) to characterize γ- Al2O3-humat functional groups, (2) to know γ- Al2O3-humat solubility and (3) to predict adsorption capacities of U-238 and of Th-232 at adsorbent γ-Al2O3-humate. The characterization of functional groups γ- Al2O3-humate is done by Fourier Transform Infra red (FTIR) Spectrometry. Based on perception results of functional spectra characteristic of γ-Al2O3-humate is similar with humic substance with decrease at stretching -OH at 3400 - 3300 cm-1, and C=O stretching of COOH spectra, C=C aromatic or hydrogen bond of C=O at 1725-1720 cm-1spectra. The solubility testing of γ-Al2O3-humate indicated that the compound it's effective used as adsorption U-238 and of Th-232 at pH 1 to 4 conditions. At single adsorption system with 1000 mg/L of U-238 or Th-232 feed, 0.001 g up to 0.1 g weight of γ-Al2O3-humate were got for U-238 balanced to 992.15 mg/L and 980.66 mg/L for Th-232.  By using regression line curve between ln C and ln x/m, adsorption capacities of U-238 and Th-232 at single system can be calculated as 3.63 mg/g and 2.93 mg/g, respectively, while adsorption capacity of Th-232 was increases to 8.08 mg/g and U-238 decreases to 0.91 mg/g at competitive system.   Keywords: U-238, Th-232, adsorption Freundlich, Spectrometry Fourier Transform Infra Red

scholarly journals Synthesis Study Of Surfactants Sodium Ligno Sulphonate (SLS) From Biomass Waste Using Fourier Transform Infra Red (FTIR)

2018 ◽  
Vol 156 ◽  
pp. 03030 ◽  
Author(s):  
Slamet Priyanto ◽  
Bambang Pramudono ◽  
Tutuk Djoko Kusworo ◽  
Suherman ◽  
Hapsoro Aruno Aji ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Sulfuric Acid ◽  
Sodium Hydroxide ◽  
Functional Groups ◽  
Black Liquor ◽  
Sodium Bisulfite ◽  
Biomass Waste ◽  
Stirring Rate ◽  
Infra Red

Lignin from biomass waste (Black Liquor) was isolated by using sulfuric acid 25% and sodium hydroxide solutions 2N. The obtained lignin was reacted with Sodium Bisulfite to Sodium Ligno Sulfonate (SLS). The best result was achieved at 80 ° C, pH 9, ratio of lignin and bisulfite 4: 1, for 2 hours, and 290 rpm stirring rate. The result of lignin formed was sulfonated using Sodium Bisulfite (NaHSO3) to Sodium Ligno Sulfonate (SLS) whose results were tested by the role of groups in peak formation by FTIR and compared to the spectrum of Sodium Ligno Sulfonate made from pure Lignin (commercial) reacted with the commercial Sodium Bisulfite. The result can be seen by the typical functional groups present in the SLS.

scholarly journals PENGARUH VARIASI TEMPERATUR KALSINASI TERHADAP BARIUM M-HEKSAFERIT DIDOPING Zn MENGGUNAKAN FOURIER TRANSFORM INFRA RED

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Aris Doyan ◽  
Ilham Halik ◽  
Susilawati Susilawati
Keyword(s):  
Magnetic Material ◽  
Fourier Transform ◽  
Functional Groups ◽  
Functional Group ◽  
Powder Sample ◽  
Wave Number ◽  
Synthesis Process ◽  
Infra Red ◽  
Test Result ◽  
Brown Powder

Abstrak: Barium M-heksaferit (BaM) merupakan bahan magnet permanen yang tergolong hardmagnetic tetapi tidak sesuai untuk beberapa aplikasi, sehingga perlu dilakukan rekayasa untuk menurunkan sifat kemagnetannya menjadi softmagnetic. Penelitian ini bertujuan untuk mengetahui pengaruh temperatur kalsinasi terhadap barium M-heksaferit didoping Zn menggunakan pengukuran FTIR. Proses sintesis barium M-heksaferit menggunakan metode kopresipitasi dengan memvariasikan konsentrasi dopannya 0,0; 0,3; 0,6; dan 0,9 serta memvariasikan temperatur kalsinasi 80oC, 400oC, 600oC dan 800oC. Setelah melakukan proses sintesis selanjutnya dilakukan pengujian sampel menggunakan FTIR (Fourier Transform Infra Red). Penelitian ini telah berhasil melakukan sintesis dengan hasil berupa serbuk barium M-heksaferit berwarna coklat muda hingga coklat tua. Berdasarkan hasil pengujian FTIR didapatkan puncak-puncak pada bilangan gelombang 3447cm-1, 2345cm-1, 1615cm-1, 530cm-1, 470cm-1 masing-masing mengindikasikan adanya gugus fungsi O-H, Ba-O, Fe-O dan Zn-O pada sampel. Puncak yang timbul pada ikatan O-H semakin mengecil menandakan bahwa ikatan pada gugus fungsi tersebut semakin melemah atau bahkan hilang. Hasil pengujian FTIR tersebut menyatakan bahwa temperatur kalsinasi sangat berpengaruh pada proses sintesis BaM. Semakin tinggi temperatur kalsinasi, bahan pengotor seperti air dan CO pada barium M-heksaferit semakin berkurang, ini menunjukkan barium M-heksaferit yang dihasilkan dapat digunakan sebagai bahan softmagnetic.Kata Kunci: Barium M-Heksaferite, sintesis, kopresipitasi, magnet, FTIR Abstract: Barium M-hexaferrite (BaM) is a permanent magnetic material which is relatively hardmagnetic but it is not appropriate for some applications that need to be engineered to degrade the nature of  magnetism to be softmagnetic. This study aims to determine the effect of calcinations temperature on Zn doped BaM using FTIR measurements. Synthesis of BaM using coprecipitation method by varying the concentrate of dopan 0,0; 0,3; 0,6; dan 0,9 and varying the calcinations temperature 80oC, 400oC, 600oC dan 800oC. After synthesis of BaM and than the samples were studied using FTIR (Fourier Transform Infra Red). This study has success to synthesis of BaM and the product is a brown powder. Based on the test result of FTIR has been obtained peaks in wave number 3447cm-1, 2345cm-1, 1615cm-1, 530cm-1, 470cm-1 indicated a functional group O-H, Ba-O, Fe-O dan Zn-O on the powder sample. The peak on O-H shrinking indicates that the bond of functional groups are weakened or even disappear.The result of FTIR said that calcinations temperature has effect to BaM synthesis process. It is found that water and CO decrease with increase in calcinations temperature, it is showed the product BaM can be used to softmagnetic.Key Words : Barium M-Hexaferrites, synthesis, coprecipitasi, magnet, FTIR

scholarly journals Studi Pengaruh Perlakuan Plasma Terhadap Sifat Material Antibakteri Kain Kassa Menggunakan Minyak Atsiri (Zingiber Officinale Rosc)

2020 ◽  
Vol 8 (1) ◽  
pp. 69-76
Author(s):  
Wilda Murti ◽  
◽  
Valentinus Galih Vidia Putra ◽  
Keyword(s):  
Fourier Transform ◽  
Essential Oil ◽  
Functional Groups ◽  
Wound Dressing ◽  
Zingiber Officinale ◽  
Dissolution Test ◽  
Additional Test ◽  
Infra Red

This work was aimed to study the influence of plasma on changes in functional groups of a wound dressing called ‘kain kassa’ which immersed in essential oil from ginger (Zingiber Officinale Rosc). In this work also analyze the differences of wound dressing between with or without using the help of plasma. The Wound dressing and the essential oil of ginger were selling in the market, the wound dressing doesn’t have information about fiber which form itself. So, Dissolution test and additional test were carried out. Then, The result of the differences of wound dressing was analyzed with Fourier Transform Infra Red (FTIR), the plasma treated has higher absrobance of O-H and C-H at wavenumber 3350 cm-1 and 2930 cm-1. However at 1700 cm-1 C=O, the wound dressing without plasma has higher absorbance than wound dressing with plasma

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