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2 2024

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The Quality Stability Assessment of a Thermal Spring Used for Therapeutic Purposes

Tirinsi Mohamed, El Guerrouj Bouchra, Moubchir Tarik, Taibi Mohamed, Hammouda Naima, Elbouzidi Amine, Chaabane Khalid, Melhaoui Mohamed

Ecological Engineering & Environmental Technology

2024

Vol. 25, iss. 1

93--100

Thermal waters have a global distribution and find extensive therapeutic use. In Morocco, which boasts more than twenty high-quality therapeutic thermal springs, few studies have focused on the quality of these waters. In this context, the present study evaluated the water quality using physicochemical, bacteriological, and radioactive parameters for the Benkachour thermal spring waters in Morocco. The results indicate that all chemicals, bacteriological, and radiological parameters are below the standards, except for global beta activity and temperature, which makes it hyperthermal, with an annual average temperature of 50.54°C. According to the Piper diagram, the water type is chloride-sodium-potassium. On the basis on these results, it was concluded that thermalism in the Eastern region of Morocco, specifically Benkachour in Oujda, can contribute to sustainable tourist development at the national and international levels due to the quality of the parameters analyzed and can be an effective complementary approach in the treatment of low-grade pathologies. The data from this study can serve as a baseline for assessing future changes and defining standards for the quality of hydrothermal baths as well as balneotherapy worldwide.

Gracilaria gracilis – A Review of Ecological Knowledge, Chemical Composition, Cultivation, and Applications

Mouedden Rajae, Abdellaoui Souad, El Madani Faid, El Ouamari Najib, Slimani Douaa, Kasmi Khaoula, Taibi Mohamed, Zahir Ilham, Chaabane Khalid

Ecological Engineering & Environmental Technology

2024

Vol. 25, iss. 1

276--287

Gracilaria gracilis is a benthic, intertidal red macroalga (Rhodophyta) of the commercially important Gracilaria genus. It is highly valued in scientific research for its ability to produce high-quality agar, a valuable polysaccharide widely utilised in various industries. This review serves as a guide to G. gracilis, encompassing various aspects of its biology, chemical composition, cultivation methods, and the main environmental factors influencing its growth as well as its different uses. The method used involved a descriptive analysis of the articles sourced from Google Scholar, ScienceDirect, and Springer. The results of the review showed that G. gracilis is one of the best candidates for cultivation, giving an excellent resilience to salinity and temperature fluctuations as well as offering ease of vegetative reproduction, among others traits. It can grow at temperatures ranging from 20 to 30°C, salinities between 25–35‰ and up to 42‰, depths ranging from 0.5 to 2.5 m, as well as light intensity of around 70 and 210 μmol photons m-2·s-1. On the basis of its chemical composition, G gracilis has many potentials as a source of high-value compounds and extracts for various uses in cosmetic, food, pharmaceutical, and biomedical industries. It is also used as a raw material or nutritious dietary item in the human diet, and can be suggested as a potential novel commercial source of phycobiliproteins.