Isolation of Catchin and Epigallocatchin From Iraqi Rhus coriaria By Preparative High-Performance Liquid Chromatography (PHPLC)

Nabaa Mohammed Ibrahem; Enas Jawad Khadum; Shihab Hattab Mutlag

doi:10.31351/vol31iss2pp271-282

Details

Publication Date

Sun Dec 25 2022

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Volume

31

Issue Number

2

DOI

10.31351/vol31iss2pp271-282

Choose Citation Style

Statistics

View publication

154

Abstract Views

571

Galley Views

786

Statistics

(12)

(2)

Isolation of Catchin and Epigallocatchin From Iraqi Rhus coriaria By Preparative High-Performance Liquid Chromatography (PHPLC)

Rhus coriaria

Preparative HPLC

LC-MSMS

FTIR

Nabaa Mohammed Ibrahem

Enas Jawad Khadum

Shihab Hattab Mutlag

...Show More Authors

ABSTRACT

Two compounds were isolated from the fruit part of Rhus coriaria that grow wildly or cultivated in the north of Iraq. The compounds were separated by preparative high-Performance Liquid Chromatography and their structures were established based on detailed spectroscopic techniques like FTIR and LC-MS/MS.

Keywords: Rhus coriaria, Preparative HPLC, LC-MSMS, FTIR

View Publication Preview PDF

Quick Preview PDF

Publication Date

Tue Mar 28 2017

Journal Name

Iraqi Journal Of Pharmaceutical Sciences ( P-issn 1683 - 3597 E-issn 2521 - 3512)

Effect of Additives on the Solubility and Dissolution of Piroxicam From Prepared Hard Gelatin Capsule

Eman

...Show More Authors

Piroxicam is a non-steroidal anti-inflammatory drug (NSAID) used in the treatment of musculo-skeletal and joint disorders. The problem with this drug is its poor solubility in water and hence poor bioavailability after oral administration. In order to improve its solubility and dissolution behavior, hydrophilic additives such as starch, lactose, superdisintegrants including crospovidone (C.P), cross carmellose sodium (CCS), and sodium starch glycolate (SSG) were physically dry mixed with the drug by simple trituration. The improvement in the solubility in 0.1 N HCl was obtained as the amount of starch or lactose increased in the physical mixture, while for superdisintegrants, they further improve the solubility when they are present in s

View Publication Preview PDF

(1)

Publication Date

Thu Mar 22 2018

Journal Name

Journal Of Biodiversity And Environmental Sciences

Survey and taxonomical study of ants that collected from indoor in different regions of Iraq

Hanaa

...Show More Authors

Publication Date

Thu Jul 01 2021

Journal Name

Biochemical And Cellular Archives

Determination of Beta Lactam Resistance of Klebsiella pneumoniae isolated from clinical specimens and water samples

Jinan Mohammed

Rasmiya Abd

...Show More Authors

Preview PDF

Publication Date

Tue Jan 01 2019

Journal Name

Technologies And Materials For Renewable Energy, Environment And Sustainability: Tmrees19gr

Calculation and study of internal radiation doses resulting from the ingestion of some radioactive sources

Safa Mouhsen

Ahmed Fadhil

...Show More Authors

View Publication

(1)

Publication Date

Sun Dec 30 2012

Journal Name

Iraqi Journal Of Chemical And Petroleum Engineering

Production of Biodiesel Fuel from Oleic Acid and Comparison of its Properties with Petroleum Diesel

biodiesel

physical properties

kinematic viscosity

density

flash point

carbon residue

esterification

oleic acid.

Nada

Sarah

...Show More Authors

Biodiesel define as the mono-alkyl esters of vegetable oil and animal fats is an alternative diesel fuel that is steadily gaining attention because the combustion of fossil fuels such as coal, oil and natural gas has been identify as a major cause of the increase in the concentration of carbon dioxide in the earth’s atmosphere and causing global warming.
The present work concerns with estimating the physical properties experimentally such as kinematic viscosity, density, flash point and carbon residue of biodiesel that produced by the esterification reaction of methanol and oleic acid with homogeneous catalysts H2SO4 in a lab-scale packed reactive distillation column using the best operating conditions of methanol to oleic acid 8:1,

View Publication

Publication Date

Tue Jul 01 2008

Journal Name

Bulletin Of The Iraq Natural History Museum (p-issn: 1017-8678 , E-issn: 2311-9799)

KEYS FOR IDENTIFICATION FOR GENERA AND SPECIES OF THRIPS (THYSANOPTERA : THRIPIDAE) FROM MIDDLE OF IRAQ

Awatif Abdul-Fatah

M. S.

...Show More Authors

Keys for 22 species representing ten genera Thripidae collection carried out during 1999-2001 in different localities in the middle of Iraq. Of them four species are described as new to science, Frankliniella megacephala sp. nov; Retithrips bagdadensis sp. nov; Chirothrips imperatus sp. nov; Taeniothrips tigridis sp. nov; Another thirteen species are recorded for the first time in Iraq; Thrips meridionalis (Pri.); Microcephalothrips abdominils (Crawford); Scolothrips pallidus (Beach); Scritothrips mangiferae Pri.; Frankliniella tritici Bagnall; Frankliniella schultzie Trybom; Frankliniella unicolor Morgan; Retithrips aegypticus Mar

View Publication Preview PDF

Publication Date

Sat Jan 05 2019

Journal Name

Iraqi Journal Of Physics

Influence of chemical and thermal treatment on the purity of silica extracted from rice husk

Rice husk

silica

treatment.

Bahaa F.

...Show More Authors

In this work, chemical and thermal treatment were used to enhance silica extract on the purity of rice husk and to reduce the impurities associated with the extraction of silica. The thermal degradation of rice husk was studied. The characteristics and thermal degradation behavior of rice husk which investigated using thermogravimetric analyzer (TGA). Hydrochloric acid was used to soak the rice husk and the study of leaching influence is followed by XRF tests for samples before and after the combustion process. Acid treatment and combustion method seem to have a clear effect on silica purity. The pyrolysis processes were carried out at Laboratory temperature up to 650 oC in the presence of nitrogen gas flowing at 150 ml/min. The effect o

View Publication Preview PDF

(2)

Publication Date

Tue Aug 02 2022

Journal Name

Karbala International Journal Of Modern Science

Performance Simulation for Adaptive Optics Technique Using OOMAO Toolbox

Adaptive Optics (AO)

OOMAO

Strehl R atio (SR)

Full Turbulence

Residue Turbulence

Noise.

Mahmood

Raaid

Bushra

...Show More Authors

The Adaptive Optics technique has been developed to obtain the correction of atmospheric seeing. The purpose of this study is to use the MATLAB program to investigate the performance of an AO system with the most recent AO simulation tools, Objected-Oriented Matlab Adaptive Optics (OOMAO). This was achieved by studying the variables that impact image quality correction, such as observation wavelength bands, atmospheric parameters, telescope parameters, deformable mirror parameters, wavefront sensor parameters, and noise parameters. The results presented a detailed analysis of the factors that influence the image correction process as well as the impact of the AO components on that process

View Publication

(6)

(1)

Publication Date

Mon Mar 08 2021

Journal Name

Baghdad Science Journal

Fast neutrons Al-Hamdani utilization to solar cells performance

Ali-H.

Nidalla H.K.

Saad Adbulwahed

...Show More Authors

Been in this gravel study the effect of Alchgag fast neutrons emitted by the source on the electrical properties of silicon solar cells monounsaturated crystal at a constant rate of neutron flow rate of a wide range of neutron flow speed ranges for periods of time ranging from 2-10 hours

View Publication Preview PDF

Publication Date

Sat Oct 01 2016

Journal Name

Journal Of Theoretical And Applied Information Technology

Factors affecting global virtual teams’ performance in software projects

Today the trend is to perform software development work via distributed geographical area among team

individual or even as an organization. However

due to the global market and international presence of many companies

there is a need to implement a global virtual teams. The global virtual team members are gradually engaged in globalized business environments across space

time and organizational boundaries via information and communication technologies. A global virtual team relies on communication

collaboration

and information exchange are the most important criteria in global virtual teams’ operations. The purpose of this paper is to answer two research questions. The first research question is to identify the factors affecting global virtual teams’ performance. A systematic literature review was conducted to answer the first research question. The second research question is on what the rank of the factor affecting the global virtual teams’ performance according to their level of effect on global virtual teams’ performance. Online survey was conducted within 103 developers and IT managers from eight IT companies to answer the second research question. The Statistical Package for Social Science (SPSS 22) was used to analyze the collected data. In this study

we investigated factors that affect global virtual teams’ performance

factors considered include cultural differences

language problems

time-zone differences

team size

technical problems

lack of trust

lack of sufficient training

and ICT problems. Also the findings indicated that lack of sufficient training is the highest level of effect on global virtual teams’ performance. On the other hand

Ali Yahya Gheni

...Show More Authors

(24)

1 2 ... 245 246 247 248 ... 2830 2831