Crataegus × sinaica

Crataegus × sinaica
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Rosales
Family:	Rosaceae
Genus:	Crataegus
Series:	Orientaegus; K.I.Chr.[1]
Species:	C. × sinaica
Binomial name
	Crataegus × sinaica; Boiss.

Crataegus × sinaica is a hawthorn that originated as a hybrid between two other hawthorn species, C. azarolus in series Orientales and C. monogyna in series Crataegus.[1] It grows in the central and eastern parts of the Mediterranean region on rocky mountain slopes.[1] In Egypt it grows in the mountains near Saint Catherine in South Sinai, where it is known as Za'rur or Za'rur al-awdiyah.[2]

Chemistry

Gas-liquid chromatography of lipoidal matter of the seeds of C. sinaica indicated that the seeds consist mainly of a mixture of a series of n-alkanes (75.75%). Sterols only represent 7.17% of the total unsaponifiable fraction. Analysis of the fatty acids from C. sinaica as methyl esters showed that the oil is rich in unsaturated fatty acids (86.86%). The major fatty acid is linolenic acid (C18:3) representing 38.43% of the total fatty acids mixture, followed by oleic acid (C18:1) 27.53%, and linoleic acid (C18:2) 20.89%. In addition, the results revealed the presence of stearic acid (3.69%) and palmitic acid (9.45%).[3]

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References

Christensen, K.I. (1992). Revision of Crataegus sect. Crataegus and nothosect. Crataeguineae (Rosaceae-Maloideae) in the Old World. Systematic Botany Monographs. 35: 1–199.
Täckholm, V. (1974). Students' Flora of Egypt, Published by Cairo University.
Refaat A. et al. (2008). Phytochemical and Biological Investigations of Crataegus sinaica Boiss. (Rosaceae). Master thesis, Cairo University, p.108. Egypt.

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[KIC-1] Christensen, K.I. (1992). Revision of Crataegus sect. Crataegus and nothosect. Crataeguineae (Rosaceae-Maloideae) in the Old World. Systematic Botany Monographs. 35: 1–199.

[2] Täckholm, V. (1974). Students' Flora of Egypt, Published by Cairo University.

[3] Refaat A. et al. (2008). Phytochemical and Biological Investigations of Crataegus sinaica Boiss. (Rosaceae). Master thesis, Cairo University, p.108. Egypt.