Authors

Elsadig A. Eltayeb

Publications 5

Research article Open access

Effect of Smokeless Tobacco Product, Afzal, on the Reproductive Hormones and Gonadal Pathology of Wistar Rats

Nawal M. Al-Mukhaini, Taher Baomar, Elsadig A. Eltayeb et al. · Sultan Qaboos University Journal for Science · 2020 · 10.24200/squjs.vol25iss1pp1-9

Afzal is a common smokeless tobacco product (STP) in Oman, and it is believed to contain toxins that may affect the reproductive hormones and hence reproductive function. This study assessed the effect of Afzal on the gonads of Wistar rats. In order to assess gonad toxicity induced by this STP, an aqueous extract of Af …

Research article Open access

The Effect of Salinity on Solamargine and Solasonine Contents of Solanum incanum Plants Grown in Oman

Sana S. Al Sinani, Elsadig A. Eltayeb · Sultan Qaboos University Journal for Science · 2015 · 10.24200/squjs.vol19iss2pp1-7

In addition to its traditional medicinal importance, Solanum incanum (thorn apple) is also a rich source of important cytotoxic glycoalkaloids such as solamargine and solasonine. The effect of salinity stress on solamargine and solasonine production by Solanum incanum plants grown in soil has been investigated. Salinit …

Research article Open access

Optimised Methods for Quantitative Analysis of Solasodine and its Glycoside Solamargine by High Performance Liquid Chromatography

Sana Salem Al-Sinani, Elsadig A. Eltayeb · Sultan Qaboos University Journal for Science · 2013 · 10.24200/squjs.vol18iss0pp1-10

Improved and simplified HPLC conditions for the determination and quantification of both the steroidal glycoalkaloid (solamargine) and its aglycone (solasodine) are described. The best isocratic conditions were developed using a C18 column and methanol in combination with an ammonium dihydrogen phosphate buffer. The is …

Research article Open access

Xanthotoxin and Other Furanocoumarins as Phytoalexins in Pastinaca sativa L. roots

Fatma M. Al-Barwani, Elsadig A. Eltayeb · Sultan Qaboos University Journal for Science · 2004 · 10.24200/squjs.vol9iss0pp7-17

Our results confirm the presence of the furanocoumarins psoralen, xanthotoxin, isopimpinellin, angelicin and bergapten as normal constituents of Pastinaca sativa roots. However, the amounts of these compounds were increased in induced roots. The amount of increase in the induced roots varied depending on the inducing a …

Research article Open access

Effect of Mechanical Injury and Low Temperature Storage on the Accumulation of Glycoalkaloids in the Tubers of 7 Varieties of Potato (Solanum Tuberosum L.) grown in Oman

Elsadig A. Eltayeb, Sana Salem Al-Sinani, Iqrar Ahmad Khan · Sultan Qaboos University Journal for Science · 2003 · 10.24200/squjs.vol8iss2pp83-95

Tubers from 7 potato varieties were analyzed for their rates of glycoalkaloid accumulation in response to stresses of three types of mechanical injury and low temperature storage. Mechanical injuries were found to greatly stimulate glycoalkaloid accumulation in both peel and flesh of tubers. The extent of glycoalkaloid …

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