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The quality of camel wool held in the Tunisian Sahara Desert

100%

Kuznicka E., Grondkowska A.

Annals of Warsaw University of Life Sciences - SGGW. Animal Science

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2013

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tom 52

The goal of present work was to investigate wool quality of camels breeding in the Tunisian part of Sahara Desert. The study was carried out with 10 camel males at the age of three years. The samples of wool were taken from the left mid-side of a shoulder. Due to the low regrowth rate of wool, the samples were not split into the external and internal fractions before a measurement. The individual fibers were classified into three groups: 1) fibers with continuous medulla, 2) fibers with intermittent medulla, 3) fibers without medulla. Then the percentage of each type of fibers was evaluated. Thickness measurement was made using the microprojection method according to Polish Standard PN-72/ /P-04900. At least 600 fibers were measured in each sample. The high fraction of hair from the core constant rate of 78% wool with a thickness of up to 48 |im, and the hair thickness variation of 47% be attributed to the roughness of the wool. The wool of the camels under study should be used for the production of carpets and handicrafts. The occurrence of continuous core both in the thin and thick fibers confirmed the adaptation of camels to a large diurnal temperature variation, as in llamas and alpacas.

2

An overview of bird migration studies in Egypt

72%

Ibrahim W. A. L.

The Ring

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2011

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tom 33

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nr 1-2

3

Antibacterial and antioxidant activities of three endemic plants from Algerian Sahara

72%

Bouchouka E., Djilani A., Bekkouche A.

Acta Scientiarum Polonorum. Technologia Alimentaria

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2012

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tom 11

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nr 1

Background. Saharan plants are known by their high content of antioxidant products like phenolic compounds due to the extreme climatic conditions. They constitute the basis of treatments used by local population for various diseases. The purposes of this study were to measure the total phenolic compounds and total flavonoid compounds, to determine antioxidant capacity, and to evaluate the antibacterial activity of three wild Saharan medicinal plants. Material and methods. Hexane and ethyl acetate fractions of ethanokwater extract and the residu of the extracted aqueous layer of Ferula vesceritensis fruits, Genista saharae aerial parts and Zilla macropterae fruits were assayed to determine their antibacterial activity using the disc diffusion method against: Escherichia coli (ATCC 25922), Staphylococcus aureus (ATCC 25923) and Pseudomonas aeruginosa (ATCC 27853). In addition, the total phenolic compounds and total flavonoids and antioxydant activity using DPPH test of ethyl acetate fractions (EAF) of plant parts studied were investigated. Gallic acid, quercetin and vitamin C were used for these parameters. Results. Among the extracts tested, ethyl acetate fractions of all plants and hexane fraction of F. vesceritensis showed activity against S. aureus. Good activity was shown by EAF of G. saharae. According to the results, it is observed that Z. macropterae fruits possess a good antioxidant activity. Conclusion. The results indicate that the ethyl acetate fraction of G. sahara Aerial parts possesses a good antibacterial activity against S. aureus, which justifies its use in traditional medicine for treating respiratory diseases. Furthermore, evaluation of in vitro antioxidant capacity of Ethyl acetate fractions of these plants, particular Z macroptera fruits, has also provided interesting results. Zilla macroptera fruits may therefore be a good source of antioxidants.

Ograniczanie wyników

1 Acta Scientiarum Polonorum. Technologia Alimentaria

1 Annals of Warsaw University of Life Sciences - SGGW. Animal Science

1 The Ring

1 Bekkouche A.

1 Bouchouka E.

1 Djilani A.

1 Grondkowska A.

1 Ibrahim W. A. L.

1 Kuznicka E.

1 2013

1 2012

1 2011

The quality of camel wool held in the Tunisian Sahara Desert

An overview of bird migration studies in Egypt

Antibacterial and antioxidant activities of three endemic plants from Algerian Sahara