In the context of sustainable development and promoting natural resources, some forgotten fruits such as the Zizyphus Lotus can be developed as local products. In addition, the frequency of Urolithiasis multiplied increasingly rapidly in the world. The Urolithiasis involves the formation of crystalline aggregates called "urinary stones" developed in the urinary tract, usually in the kidneys or ureters, but may also affect the bladder or urethra. The objective of this study is to study in vitro the crystallization of calcium oxalate as a lithogenic species and to investigate the inhibitory effect of aqueous jujube extracts on the crystallization of calcium oxalate in order to exploit it. Six jujube fruit samples were taken from six geographical zones from Beni Mellal-Khenifra region. These fruit - seed samples were separated from their seeds. The pulps were subjected to a grinding mortar so as to have fine powder. The samples have been subsequently, submitted a cold maceration during 48 hours. The study of the crystallization of calcium oxalate is carried out by the optical microscope with polarized light (MLP). Some aqueous extracts have an anti-lithiasic effect on the aqueous solution of the lithogenous species studied.

The objective of the present work is the evaluation of the nutritional and organoleptic properties of olive oils from oil mills in the rural commune of Tagzirt, area of Beni Mellal (center of Morocco) by a physicochemical characterization of their compositions. Fifteen samples of olive oils extracted from the Moroccan Picholine variety were collected from traditional oil mills. Physicochemical analyzes of free acidity, peroxide value, refractive index, density, K232, K270 and K, the chlorophyll content, the content of phenolic compounds, the α-tocopherol content and oleic acid proportion were conducted according to the standards of the International Olive Council (IOC). The results were used to classify the oils studied according to their quality standards. The data obtained confirm that the conditions of harvesting, crushing and storage of olive oils affect the quality of produced oil. Therefore, we must educate farmers on the importance of improving practices and cultivation techniques and the owners of oil mills as regards the storage, processing and storage of oils.

The present work reports a comparative study of spontaneous crystalluria for non- and goitrous patients with the aim to determine its correlation with parathyroid gland activity and goiter etiology. The crystalluria was accessed based on optical polarized light microscopy (OPLM). Goiter presents high woman predominance with an average age of 35.6 years. The frequency of majority constituents in crystalluria is age dependent and amorphous complex carbonated phosphates (ACCP) and uric acid (UA) are the frequent chemical species. The observed hyperphosphaturia can be explained by the estrogen's activity on parathyroid cells proliferation. The presence of oxalo-calcic crystalluria confirms hyperparathyroidism as one of the hypercalciuric kidney stone etiology. Clinical goiter diagnostic and treatment could be followed and confirmed by a simple fluctuations follow-up of crystalluria composition according to phosphate and calcium species.