University of Khartoum

Minerals and Heavy Metals Constituents of a Spider Web Made by Araneus Diadematus (Araneidae)

Minerals and Heavy Metals Constituents of a Spider Web Made by Araneus Diadematus (Araneidae)

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dc.contributor.author Mohamed, Elagba Haj Ali
dc.date 2014
dc.date.accessioned 2017-01-31T08:03:59Z
dc.date.available 2017-01-31T08:03:59Z
dc.date.submitted 2017
dc.identifier.uri http://khartoumspace.uofk.edu/123456789/24544
dc.description.abstract The objective of this study was to investigate the minerals and heavy metals composition in the web-silk of two populations of the spider Araneus diadematus (Araneidae) by Atomic Absorption Spectrophotometer. Minerals forming (59 %) and heavy metals forming (41 %) of the total content were found in the web-silk of the two populations. The major component was Calcium (Ca) that formed (38.9% - 41%) followed by Aluminium (AL) that formed (20.2 - 21.2%) of the total constituents. Calcium formed (65.7%) of total minerals in population (1) followed by Mg (12.2%), Na (11%) and K (9%); and (69.1%) of total minerals in population (2) followed by Mg (11%) and Na (7%). Low content (0.6 – 1.4 %) of phosphate and manganese was detected in both populations. Aluminium and iron constituted, respectively, (52% and 45.3%) of total heavy metals in population (1) and (49.4% and 47.8%) in population (2). The content of Zn, Ba, Cu, Cr and Ni was very low in both populations. The present results indicate that the silk–webs of the spider Araneus diadematus is rich of minerals and metals beneficial for human uses in different medical and industrial products. Slight differences observed could be related to different compositions in the diet of each population. Further investigations may reveal undiscovered important contents of the spider webs. en_US
dc.language.iso en en_US
dc.publisher University of Khartoum en_US
dc.subject Alumimium en_US
dc.subject Araneus diadematus en_US
dc.subject Calcium en_US
dc.subject Heavy Metals en_US
dc.subject Iron, Minerals en_US
dc.subject Spider-Web en_US
dc.title Minerals and Heavy Metals Constituents of a Spider Web Made by Araneus Diadematus (Araneidae) en_US
dc.type Publication en_US
dc.Faculty Science en_US

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