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Tarig Khider

University of Bahri- Sudan, Pulp and Paper- College of Applied and Industrial Sciences, Faculty Member

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Papers by Tarig Khider

Brine-Shrimp Lethality Bioassay of Different Extracts of the Medicinal Plant Matricaria (Chamomilla) Flowers

Journal of medicine and healthcare, Dec 31, 2022

Objective: The present study aimed to throw some light on phytochemical constituents of Matricari... more Objective: The present study aimed to throw some light on phytochemical constituents of Matricaria (cammomile) flowers. Results: The 95% ethanolic crude extract was subjected to column chromatography and nine fractions were collected. Fractions 1-6 have the same Rf value, (using thin layer pre-coated silica gel (0.25cm). were combined and subjected to spectroscopic analysis; infrared spectra showed absorption at 1860, 1637 and 805 cm' indicating the presence of c=o, c=c, and co groups respectively. Ultra violet absorption at 250-283nm assign for the presence of flavonoids, (lit. 250-280). Finally GC/MS spectra performed the presence flavonoids.Crude extracts (ethanol, methanol, petroleum ether, and chloroform) were investigated for antimicrobial activities against four strains of bacteria (Staphylococcus aureus, Escherichia coli, Bacillus sub tills, Pseudomonas aeruginosa, and two fungi: Asperigillus niger, and Candida albican) with disc diffusion method, the diameter of growth inhibition zone ranged 15-22mm.

Towards Rational Utilization of Indigenous Plant Resources

Bioresources, Aug 1, 2018

The world has huge floral diversity, whereas there often is poor and irrational utilization, espe... more The world has huge floral diversity, whereas there often is poor and irrational utilization, especially of indigenous plants and residues from agricultural processes. Trees, shrubs, and herbs can have multiple uses at different levels as medicines and sources of lignocellulosic materials. A fuller and more rational utilization is needed, with interaction of international and national communities, to raise the awareness of local people, governments, and industrial entrepreneurs of the floral wealth that is waiting to be utilized more effectively.

A Look at Some Medicinal Plants from Sudan-Mini Review

Advanced Pharmacy Research, 2018

Sudan has large area, with multi-culture, habits rich biodiversity and medicinal plants, although... more Sudan has large area, with multi-culture, habits rich biodiversity and medicinal plants, although was divided in 2011 into two countries still rich with valuable medicinal plants. The objective of the present mini review is to indicate and document some medicinal plants from Sudan and reflect their valuable uses in treating some indigenous and tropical diseases. The present mini-review gave a look at some of these plants, mentioning their families, distribution, their local names, their habits, the plant part used for treating diseases and mode of treatment. The medicinal and Aromatic Plants Research Institute (MAPRI) of the National Centre for Research (NCR) plays major role in medicinal and aromatic plants investigation, determination, valuation and documentation in Sudan and contributes with local healers in different regions of Sudan, the rediscovering of these plants is highly needed with contribution of overseas pharmaceuticals companies as natural products have less side effects than industrial drugs.

Determination of heavy metal content in surface sediments and soil from the River Nile Khartoum City (Sudan)

Research Square (Research Square), Jul 16, 2020

The surface sediment and surface soil samples were taken from the River Nile (Abroof, Shambat, AL... more The surface sediment and surface soil samples were taken from the River Nile (Abroof, Shambat, AL-Halfaia and AL-Hetana), Khartoum, to determine the available levels of Lead (Pb), Zinc (Zn) and Cadmium (Cd) to establish a baseline concentration of each of these available metals and to investigate their possible correlations with soil and sediment properties. The content of each of the three heavy metals in soil and sediment samples was determined using atomic absorption spectroscopy, AAS. The values of Zinc in the soil and sediment samples, were found to be between (0.192 to 0.294 ppm) and (0.101 to 0.181 ppm) respectively, showing the highest content in soil and sediment samples in Shambat (S) and Abroof (A) and the lowest values recorded for samples in AL-Halfia (H) and AL-Hetana (E). While Lead content was ranged between (0.105 to 0.136 ppm) for soils samples (AL-Hetana (E) and Shambat (S) and (0.078 to 0.141 ppm) for sediment samples Abroof (A) and shambat (S). Whereas, content for Cadmium ranged between (0.010 to 0.015 ppm) for soil samples Shambat, AL-Hetana and Abroof and (0.011 to 0.016 ppm) for sediment samples Shambat, AL-Halfia and Abroof. Soil and sediment physicochemical properties (pH, temperature & conductivity) were found to be correlated with the available heavy metals content, suggesting that the enhanced mobility of heavy metals are related to anthropogenic activities, the high percentage of organic carbon in soil (11.6%) and sediment (15.0%).

Brine-Shrimp Lethality Bioassay of different extracts of the medicinal plant matricaria (chamomilla) flowers

Research Square (Research Square), Nov 13, 2020

The present study aimed to throw some light on phytochemical constituents of Matricaria (cammomil... more The present study aimed to throw some light on phytochemical constituents of Matricaria (cammomile) owers. The grinded owers were extracted successively by petroleum ether (40-60°C), chloroform, 95% ethanol, and ethyl acetate; using soxhlet apparatus respectively. The extracts were concentrated under vacuum (rotatory evaporator).Phytochemical screening of matricaria owers, were performed using standard methods, showed the presence of alkaloids, avonoids, terpenoids, saponins, and anthraquinone. The 95% ethanolic crude extract was subjected to column chromatography and nine fractions were collected. Fractions 1-6 have the same Rf value, (using thin layer pre-coated silica gel (0.25cm). were combined and subjected to spectroscopic analysis; infrared spectra showed absorption at 1860, 1637 and 805 cm' indicating the presence of c=o, c=c, and co groups respectively. Ultra violet absorption at 250-283nm assign for the presence of avonoids, (lit. 250-280). Finally GC/MS spectra performed the presence avonoids.Crude extracts (ethanol, methanol, petroleum ether, and chloroform) were investigated for antimicrobial activities against four strains of bacteria (Staphylococcus aureus, Escherichia coli, Bacillus sub tills, Pseudomonas aeruginosa, and two fungi: Asperigillus niger, and Candida albican) with disc diffusion method, the diameter of growth inhibition zone ranged 15-22mm.The distilled essential oil (hydro distillation) of matricaria owers was subjected to GC/MS, a Number of aliphatic compounds were detected e.g. 2, 3 heptadione and 3-hexa none, 2, 5 dimethyl.

Alkaline pulping with additives of date palm rachis and leaves from Sudan

Bioresource Technology, 2005

Soda-anthraquinone (soda-AQ), alkaline sulphite-anthraquinone (AS-AQ) and alkaline sulphite-anthr... more Soda-anthraquinone (soda-AQ), alkaline sulphite-anthraquinone (AS-AQ) and alkaline sulphite-anthraquinone-methanol (ASAM) pulping of date palm rachis and leaves from Sudan was carried under different conditions, and pulps with variable yields and mechanical properties were obtained. The date palm rachis gave best yields and mechanical properties with the AS-AQ or the ASAM process, while the leaves were best pulped with the soda method with low yield, but very good strength properties. Blending with 10% and 30% kenaf bark pulp was beneficial, especially for the AS-AQ pulps. Totally chlorine free (TCF) bleached rachis pulps were obtained of high brightness and strength properties suitable for use in writing and printing papers.

Environmentally friendly pulping and bleaching of bagasse

Industrial Crops and Products, Mar 1, 2006

Depithed Sudanese bagasse was examined for its suitability for pulp production. Bagasse fibre dim... more Depithed Sudanese bagasse was examined for its suitability for pulp production. Bagasse fibre dimensions, morphological and chemical characteristics are reported. The pulping trials were carried out with soda-AQ and alkaline sulphite-AQ (AS-AQ) methods and soda method as reference. The AS-AQ pulping gave the best results in yield, degree of delignification, mechanical and optical pulp properties. Blending of bagasse and bamboo alkaline sulphite-anthraquinone pulps in different ratios gave well-balanced pulp strength characteristics with good tensile and tear indices, widening the range of different end products from bagasse pulp. Totally chlorine free bleaching (Q 1 O/PQ 2 P) of the best unbleached bagasse pulps gave bleached pulps of 76.9% ISO brightness, suitable for use in writing and printing grades of paper.

Pulping with Additives of Typha Domingensis Stems from Sudan

Soda-anthraquinone (soda-AQ) alkaline sulfite-anthraquinone (AS-AQ) and ASAM (alkaline sulfiteant... more Soda-anthraquinone (soda-AQ) alkaline sulfite-anthraquinone (AS-AQ) and ASAM (alkaline sulfiteanthraquinone-methanol) cooking of southern cattail whole stem and bark from Sudan was carried out under different conditions and pulps with acceptable to good screened yields and very good mechanical properties were attained. The southern cattail whole stems gave satisfactory mechanical properties with ASAM process with good yields while the bark was best pulped with the AS-AQ with acceptable yield, but good strength properties.

Alkaline Pulping with Additives of Southern Cattail Stems from Sudan

Soda-anthraquinone (soda-AQ) alkaline sulfite-anthraquinone (AS-AQ) and ASAM (alkaline sulfiteant... more Soda-anthraquinone (soda-AQ) alkaline sulfite-anthraquinone (AS-AQ) and ASAM (alkaline sulfiteanthraquinone-methanol) cooking of southern cattail whole stem and bark from Sudan was carried out under different conditions and pulps with acceptable to good screened yields and very good mechanical properties were attained. The southern cattail whole stems gave satisfactory mechanical properties with ASAM process with good yields while the bark was best pulped with the AS-AQ with acceptable yield, but good strength properties.

Pulping potential of doum palm rachis from Sudan

Tropical Science, Sep 1, 2003

Soda‐anthraquinone (soda‐AQ), alkaline sulphite‐anthraquinone (AS‐AQ) and alkaline sulphite‐anthr... more Soda‐anthraquinone (soda‐AQ), alkaline sulphite‐anthraquinone (AS‐AQ) and alkaline sulphite‐anthraquinone‐methanol (ASAM) pulping of doum palm rachis from Sudan was carried under different conditions, and pulps with variable yields and mechanical properties were obtained. The rachis was unsuitable for competitive papermaking on its own, but blending it with 10 and 30% of the pulp from kenaf bark improved the properties sufficiently for use in writing and printing papers. Copyright © 2003 Whurr Publishers Ltd

Ethnobotanical investigation on medicinal plants in Algoz area (South Kordofan), Sudan

Journal of Ethnobiology and Ethnomedicine, Apr 27, 2018

Background: The inhabitants of western Sudan use traditional medicine for the treatment of variou... more Background: The inhabitants of western Sudan use traditional medicine for the treatment of various ailments due to lack of medical doctors and unaffordable prices of pharmaceutical products. The present study is the first documentation of the traditional plant knowledge on medicinal uses of plants by healers in Algoz (South Kordofan), Sudan. Method: Ethnobotanical data were collected over a period from March to November 2015 using semi-structured interviews with 30 healers (24 male and 6 female) living in the investigated area. Quantitative indices such as use categories, use value (UV) and informant consensus factor (ICF) were intended to evaluate the importance of medicinal plant species. Results: A total of 94 medicinal plants, which belong to 45 families and 81 genera, were recorded in the study area. The most represented families are Leguminosae with 20 species followed by Combretaceae (6 species), Rubiaceae (5 species) and Asteraceae (4 species). The reported species were belonging to herbs (43%), trees (28%), shrubs (22%), climbers (4%) and parasites (3%). Root and stem (21% each) were the most plant parts used. A majority of remedies are administered orally (67%) where infusion (36%) and maceration (32%) are the most used methods. The highest ICF (0.87) was reported for poisonous animal bites followed by urinary system diseases (0.89), blood system disorders (0.88) and gynaecological diseases (0.87). Anastatica hierochuntica, Ctenolepis cerasiformis, Echinops longifolius, Cleome gynandra, Maerua pseudopetalosa, Martynia annua, Oldenlandia uniflora, Opuntia ficus-indica, Solanum dubium, Sonchus cornutus, Tribulus terrestris and Drimia maritima were reported for the first time in this study. Conclusion: The number of medicinal plants reported in this paper reflects evidence that Algoz area had a high diversity of medicinal plants which will continue to play an important role in the healthcare system in the study area.

Science and Education Development Institute Journal

To Whom It May Concern

Editor Acceptance Letter

Asia-Pacific Chemical, Biological& Environmental Engineering Society

Asia-Pacific Journal of Chemical Engineering

Bioinfo Publications publishes the finest academic and educational writing from around the world.... more Bioinfo Publications publishes the finest academic and educational writing from around the world. Bioinfo Publications is a rapidly growing academic publisher with journals covering all major areas of science, technology, medicine, and a book publishing program that spans all scholarly disciplines. Dr. Virendra Gomase President Bioinfo Publications Valid Until: 28 Jun 2016 -www.bioinfopublication.org -Membership No: 4B008D3131

Thin Layer Chromatography and Quantification of Total Contents of Phenol, Flavonoid, Tannin, Carbohydrates and Amino Acids of Heliotropium bacciferum Forssk Leaves and Stem Extracts

This work aimed to identify and quantify the phytochemical components of Heliotropium bacciferum ... more This work aimed to identify and quantify the phytochemical components of Heliotropium bacciferum leaves and stem with thin layer chromatography (TLC) method in the extractions with different organic solvents namely methanol, diethyl ether and ethyl acetate. The quantitative phytochemical was showed the methanol extract had high amount of tannin (226 and 251mg/g) and high amount of polyphenol (106 and108 mg/g) and all extracts was high amount of total flavonoid (52 and 19 contented high amount of carbohydrate (4.1 and 4.0/L) follow by total amino acid was showed low content of the amino acid (1.4 and 0.79 mg) in leaves and stem respectively.

Brine-Shrimp Lethality Bioassay of different extracts of the medicinal plant matricaria (chamomilla) flowers

The present study aimed to throw some light on phytochemical constituents of Matricaria (cammomil... more The present study aimed to throw some light on phytochemical constituents of Matricaria (cammomile) flowers. The grinded flowers were extracted successively by petroleum ether (40-60°C), chloroform, 95% ethanol, and ethyl acetate; using soxhlet apparatus respectively. The extracts were concentrated under vacuum (rotatory evaporator).Phytochemical screening of matricaria flowers, were performed using standard methods, showed the presence of alkaloids, flavonoids, terpenoids, saponins, and anthraquinone. The 95% ethanolic crude extract was subjected to column chromatography and nine fractions were collected. Fractions 1-6 have the same Rf value, (using thin layer pre-coated silica gel (0.25cm). were combined and subjected to spectroscopic analysis; infrared spectra showed absorption at 1860, 1637 and 805 cm’ indicating the presence of c=o, c=c, and c-o groups respectively. Ultra violet absorption at 250-283nm assign for the presence of flavonoids, (lit. 250-280). Finally GC/MS spectra...

Antibacterial and antifungal activities of hexane and acetone extracts of sheets and fruits of Feijoa sellowiana O

GSC Biological and Pharmaceutical Sciences, 2018

In these last decades, recent pharmacopeia was focused on the search of bioactive molecules, whic... more In these last decades, recent pharmacopeia was focused on the search of bioactive molecules, which were extracted from medicinal plants. In this study, our choice related to Moroccan variety Feijoa sellowiana (F. sellowiana). Because, this variety had not been scientifically evaluated yet. Meanwhile, its fruits were ignored by moroccan population, which could economically constitute an exploitable source. Thus, the objective of this study was to evaluate the microbial activities of F. sellowiana. Extraction was carried out by successive exhaustion of plant materials, by using two organic solvents, hexane and acetone. Therefore, the separation of each extract was done using chromatography on column. Thereafter, the screening of secondary metabolites were done by the method of screening. According to the different results obtained during this study. All extracts have showed the presence of secondary metabolites such as saponosids, tannins, steroids and terpens. Thus, they showed antimicrobial activities except acetone extract of fruits, almost all fractions revealed as inactives on Candida albicans. However, more studies are needed to valorize the moroccan variety F. sellowiana and could be used to overcome the microbial aggressions.

Physical and mechanical properties of Cupressus funebris Endl. wood

IOP Conference Series: Materials Science and Engineering, 2019

In this paper, some selected physical and mechanical properties of Cupressus funebris Endl. wood ... more

Towards Rational Utilization of Indigenous Plant Resources

BioResources, 2018

The world has huge floral diversity, whereas there often is poor and irrational utilization, espe... more The world has huge floral diversity, whereas there often is poor and irrational utilization, especially of indigenous plants and residues from agricultural processes. Trees, shrubs, and herbs can have multiple uses at different levels as medicines and sources of lignocellulosic materials. A fuller and more rational utilization is needed, with interaction of international and national communities, to raise the awareness of local people, governments, and industrial entrepreneurs of the floral wealth that is waiting to be utilized more effectively.