Samir Begaa

Instrumental neutron activation analysis (INAA) has been used to determine the concentration of some toxic chemical elements in a variety of aromatic plants samples collected from Djelfa region. In the present work, eight medicinal plants were examined, such as Artemisia herba-alba Asso., Artemisia compestris L., Laurus nobilis L., Origanum vulgare...

Traditional medicinal seeds such as caraway "Carum carvi L." and Foeniculum vulgare Mill. commonly called fennel have been largely used since several centuries for a wide range of ailments related to digestive, endocrine, reproductive, and respiratory systems. Additionally, it is also used as a galactagogue agent for lactating mothers. The Algerian...

Our laboratory of neutron activation analysis is highly involved in nutrition applications in the framework of research activities using the Algerian research reactor. The medicinal and aromatic plants of Mentha pulegium L. have been largely used in traditional medicine for several centuries to contribute significantly to human health related to di...

The objectives of this research were to study the elemental concentrations of Mentha spicata L., using a sensitive nuclear analytical technique based on instrumental neutron activation analysis. M. spicata L., have been largely used in Algerian traditional medicine, especially in the treatment of ailments digestive. Twenty elements were assessed (A...

This study presents the elemental concentration obtained in two Algerian spices (Coriandrum sativum L. and Cuminum cyminum L.) evaluated by instrumental neutron activation analysis (INAA), in order to highlight the importance of these spices as a potential source of micronutrients. The daily intake of micronutrients and potentially toxic elements w...

Teucrium polium L. is commonly used in folk medicine to treat hypertension and diabetes and to heal wounds. The present work aimed to evaluate the different biological activities of T. polium hydroalcoholic extract, its total phenol and flavonoid content, and its mineral elements. Results showed that T. polium extract showed significant antioxidant...

In order to enhance natural products value, Melissa officinalis (lemon balm) aerial part (leaves) has been studied in this work. Hence, the objective of this study is to determine the chemical composition of the studied plant polyphenols extracts using HPLC/DAD, as well as evaluate their flavonoid extracts’ antioxidant and antimicrobial activities...

Lobularia libyca (L. libyca) is a traditional plant that is popular for its richness in phenolic compounds and flavonoids. The aim of this study was to comprehensively investigate the phyto-chemical profile by liquid chromatography, electrospray ionization and tandem mass spectrometry (LC-ESI-MS), the mineral contents and the biological properties...

This study evaluated the in vitro antioxidant properties, antibacterial and antifungal activities and in vivo anti-inflammatory properties, and identifying the phenolic compounds in Cistus salviifolius. The methanolic leaf extract showed the highest antioxidant activity with 6.1±1.60 µg/ml IC50 value using DPPH  and 55.5±0.20 µg/ml using Reducing...

Spices in general owned a very important reputation in the herbal plantae Kingdom; they have been used for food flavoring, preservation, aroma, and coloring for more than 2000 years. Moreover, spices are classified as all natural, and for this reason, they attracted a large scale of consumers worldwide; however, since most of spices are consumed in...

Our study evaluated the in vitro antioxidant properties, antibacterial and antifungal activities, anti-inflammatory properties, and chemical composition of the essential oils (EOs), total phenol, and total flavonoid of wild Mentha pulegium L. This study also determined the mineral (nutritional and toxic) elements in the plant. The EOs were extracte...

The work aims to determine the radioactivity levels of Algeria thermal waters which have been used permanently in spas for therapeutic intentions. Eight Spas waters in north Algeria analysis was performed to determine their radioactivity concentration for 226 Ra, 232 Th, 235 U and 40 K, using a high-resolution HPGe γ-spectrometry system. Water is i...

Trace elements (TEs) constitute a major part of pollution, which can induce a detrimental impact on public health. A precise analysis of these elements in the environment is an important parameter in the evaluation of the population's quality of life. This work aims to quantify the concentration of some trace elments in enviromental samples using I...

PurposeThe Self Powered Neutrons Detectors (SPND) have the advantage of not requiring a high voltage power supply for their operation and are small in size, enhancing the interest of these detectors in medicine.Methods In this context, we have developed a thermal neutron detection system based on SPND. This detector was placed in the thermal channe...

Abstract In this study, two kinds of Artemisia plant, Artemisia campestris L. and Artemisia herba-alba Asso., collected from different locations in Djelfa province, Algeria, were subjected to an instrumental neutron activation analysis (INAA) in order to determine their essential and toxic elements for the first time. The obtained results for both...

A versatile gamma ionization chamber (VGIC) has been designed, developed and characterized, in order to study experimentally its characteristics according to the geometry of the electrodes, the volume and pressure of the filler gas for the design of a gamma sealed chamber. The tests were conducted under the IEC (International Electro-technical Comm...

This study describes the minerals elements, chemical composition, antioxidant and antimicrobial activities of Algerian Melissa officinalis plant. The essential oil (EO) was extracted by hydrodistillation (HD) using a Clevenger-type apparatus of dry leaves of M. officinalis and was analyzed by two techniques, gas chromatography coupled with flame io...

Neutron detection is used in a wide range of applications in nuclear physics, radiation protection, nuclear fuel cycle, reactor instrumentation, security and industrial measurement. Among the detectors used in this field, we notice the gas-filled 3He proportional counters which have been one of the main detecting tools for thermal and cold neutron...

This study describes the chemical composition, antitumor, antioxidant, and antimicrobial activities of the plant Thymus algeriensis Boiss. Essential oils (EOs) were collected in different periods (before, during, and after flowering stage) from the El-Guetfa region, M’sila, Algeria. The EOs extraction was achieved using three distinguishing techniq...

Sesbania bispinosa (Jacq.) W. Wight is a medicinal plant used by traditional healers from India and now introduced in southern Algeria, for which the chemical composition still needs to be uncovered. This work aimed to establish the chemical profile of this important medicinal plant and determine of the antioxidant effects of the 80% methanol extra...

El-Oued province (southeast Algeria), is located in a medicinal plant-rich area; Launaea glomerata (Cass.) Hook. f. is one among them which is a perennial herb spread widely in the arid regions of the Mediterranean Sea. The selection of the studied plant corresponds perfectly to the scientific needs due two reasons, firstly because these samples ar...

PurposeNeutrons detection is of paramount importance in nuclear physics experiments, reactor physics, monitoring and control of nuclear reactors and in radiation protection. Among the neutron detectors used are Proportional Counters (PC to BF3, boron deposition, 3He), Our Detection and Measurements laboratory has embarked on a project to develop, d...

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This work present the experimental characteristics study of the versatile gamma ionization chamber that is designed, developed and distinguished in our laboratory. All tests were accomplished under the International Electro-technical Commission. The saturation current curves and the linearity were plotted by determining the operating range and the...

Neurada procumbens L. (Neuradaceae) is one of the most popular plants in the province of El‐Oued in south‐eastern Algeria. This study aimed to determine the antioxidant effectiveness of the 80% methanol extract of the aerial parts of the plant via the study of three‐way antioxidant activity namely, ABTS (2,2'‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulf...

In this study, two techniques Hydrodistillation (HD) and Microwave-accelerated distillation (MAD), was used to extract essential oils (EOs), from the peels of citrus fruits Washington Navel (Citrus sinensis L. Osbeck) collected from Tipaza province, north Algeria during April 2018. The extraction yield and time of EOs were (0.28% and 180 min) using...

Most of the rural Algerian communities believed that Pistacia lentiscus L. leaves have therapeutic capacities to treat many gastric diseases and abdomen aches, whereas, the rural habitants of Mitidja, Algeria powdered P. lentiscus L. leaves and consume it fresh in order to heal mild dyspeptic disorders and peptic ulcer. Therefore, the current study...

The aim of this study was to find a good clarification method to eliminate the substances in Algerian grape juice and study the effects of the clarification agents on juice quality. The clarified grape juice was subjected to different treatments, namely bentonite, gelatin, combination of gelatin and bentonite, then stored for 4 weeks. The effects o...

In Algeria, Data and studies on the non-metal trace element selenium (Se) are presently lacking, therefore, the aim of this investigation is to provide new data on (Se) element via its determination for the first time from Mentha pulegium L. plant. The plant samples were collected in summer of 2012 from Ain-Oussera region, Djelfa province, Algeria;...

attestation of reviewing

Presented a poster communication at the first International Seminar on Green Chemistry and Sustainable Engineering (ISGCSE), organized from December 17-18, 2019 at the University of Echahid Hamma Lakhdar, El-Oued

https://publons.com/researcher/1510639/samir-begaa/

Selenium (Se) has been a focus of attention as an important micronutrient with its impact on human health, with there being consequences either due to excess or deficiency in intake. Radiochemical neutron activation analysis (RNAA) is well established method for determination of a number of elements at trace level concentrations with high sensitivi...

This study aimed to investigation the mycotoxin of Ochratoxin A (OTA) which can contaminate grape in mediterranean basin. Its toxicity was subject of many animal studies and carcinogenic characters are well established today. So the European Committee has fixed the maximum in grape 2µg/L. Most methods used for mycologic identification is based main...

Pistacia terebinthus L. and Pistacia lentiscus L. leaves are widely used in Algerian folk medicine. For the first time, P. terebinthus and P. lentiscus leaves, were subjected to determine their essential and toxic elements using instrumental neutron activation analysis (INAA). P. terebinthus and P. lentiscus leaves were collected from two different...

https://atlasofscience.org/do-the-contents-of-mineral-elements-in-algerian-spices-useful-for-digestive-diseases/

Selenium (Se) has been a focus of attention as an important micronutrient with its impact on human health, with there being consequences either due to excess or deficiency in intake. Radiochemical neutron activation analysis (RNAA) is well established method for determination of a number of elements at trace level concentrations with high sensitivi...

https://atlasofscience.org/chemical-toxicity-study-of-some-algerian-medicinal-plants/

The Algerian neutron activation analysis laboratory is highly involved in nutrition applications in the framework of research activities using the Es-Salam research reactor. The main objective of this work is to contribute, by using nuclear analytical techniques, for studying a large number of natural food samples consumed in Algeria related to nut...

The essential trace element selenium is a focus of attention due to its effects on human health, there being consequences of both its deficiency and excess. Due to the ultra-trace content of selenium, the neutron activation analysis method (NAA) is difficult to apply. We therefore made use of the radiochemical neutron activation analysis (RNAA) to...

k 0-Standardization method was applied in clinical investigation to evaluate the whole blood correlation factor of Na and K, Fe and Zn of 21 patients suffering from Alzheimer pathology and 5 normal controls. Samples were irradiated at Es-Salam research reactor. However, the concept (QC/QA) is considered to evaluate the accuracy of the method. NIST...

At Es-Salam research reactor, the instrumental neutron activation analysis was used since 1993 as the first technique in our laboratory. In spite of the simplicity of the concept of this technique, the capability of analysis depends of the determination of elements in reference standard. Due to the limitations of INAA method, we have conducted our...

The k0-standardization method was applied in clinical investigation to evaluate the correlation factor of major and trace elements in total blood of 21 patients suffering from Alzheimer pathology and 05 normal controls. In this work, a large number of samples were prepared and irradiated at Es-Salam research reactor using a well calibrated channel...

Participation in inter-comparison programs is an important process to enhance the accuracy and precision of the analytical techniques used in the laboratories. The NAA laboratory of nuclear research centre of Birine participates during the first quarter of 2013 by analyzing IPE and ISE distributed by WEPAL organism. This work was executed in the f...

Le dosage des éléments fait appel à de nombreuses méthodes d’analyse. Parmi ces méthodes, on trouve la technique d’analyse par activation neutronique (INAA) qui est une méthode multi élémentaire, sensible et précise. Elle est très indiquée pour le dosage des éléments majeurs, mineurs, de traces ou ultra traces. Cette technique d’analyse a démontré...

La contribution des plantes médicinales depuis les temps antiques ont été des sources indispensables des préparations traditionnelles préventives et curatives de la médecine pour les êtres humains et le bétail. Les médecines basées sur les herbes ont un rôle prééminent sur les produits pharmaceutiques et de santé du 21ième siècle. Le présent travai...

The mean objective of this work is to apply the neutron activation analysis for the determination of the trace elements in 35NCD16 steel using the k0-NAA technique. In this investigation, the samples were irradiated during 8 hours in the experimental channel of Es-salam research reactor. The location of irradiation is characterized by the thermal n...

Participation in inter-comparison programs is an important process to enhance the accuracy and precision of the analytical techniques used in the laboratories. At Es-Salam Research Reactor, our laboratory uses two functional analytical techniques such as INAA and k0-INAA in the research projects and for the completion of the service works. Recently...