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Copyright of Journal of Agriculture & Nature / Kahramanmaraş Sütçü İmam Üniversitesi Tarım & Doğa Dergisi is the property of Kahramanmaras Sutcu Imam Universitesi and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In current study, proximate compositions (ash, lipid and protein) of seven Red macroalgae (Laurencia obtusa, Liagora viscida, Liagora ceranoides, Gracilaria bursa-pastoris, Carradoriella elongata, Halopithys incurva and Tricleocarpa fragilis) collected from Turkey (Çanakkale and Antalya) were determined. The differences observed between biochemical compositions such as ash, lipid and protein of seven red macroalgae species were statistically significant (p<0.05). The lowest and highest ash, lipid and protein values of seven red macroalgae were 38.86±0.15% (Gracilaria bursa-pastoris)- 85.61±0.22% (Tricleocarpa fragilis), 0.23±0.02% (Tricleocarpa fragilis)- 1.87±0.08% (Carradoriella elongata), 2.79±0.02% (Liagora ceranoides)- 9.72±0.35% (Halopithys incurva), respectively. Gracilaria bursa-pastoris (38.86±0.15%), Carradoriella elongata (42.89±0.06%) and Halopithys incurva (42.28±0.44%) were similar each other (p>0.05). The lipid (Liagora viscida (0.44±0.07%), Liagora ceranoides (0.42±0.07%), Gracilaria bursa-pastoris (0.43±0.04%)) and protein (Tricleocarpa fragilis (2.93±0.39%), Liagora ceranoides (2.79±0.02%)) amounts of red macroalgae tested in study were similar each other (p>0.05) but the different from other red macroalgae (p<0.05). In conclusion, the information of the proximate compositions of seven red macroalgae are important for the evaluation of potential sources for commercial and human consumption. In addition, proximate compositions of tested macroalgae could make important contributions to feed formulations and functional foods in future. [ABSTRACT FROM AUTHOR]

Sargassum vulgare was sampled by free dives in Iskenderun Bay, Hatay, Turkey, in September 2018. Sargassum vulgare is a material with high economic value because it has compounds that can be used in medical applications such as alginic acid and at the same time it contains carbohydrates and vitamins. Alginates were extracted with a sequential extraction protocol from Sargassum vulgare. Structural characterization of alginate obtained from Sargassum vulgare was determined by FT-IR spectrum, phase structure by XRD diffractometer, and surface morphology by SEM image. Within the scope of the study, alginate obtained from Sargassum vulgare and herbal preservative 705 used in the field of cosmetics were compared. After pretreatment of Sargassum vulgare with ethanol, alginate extraction was performed. Microorganisms of Pseudomonas aeruginosa, Staphylococcus aureus, Candida albicans, Escherichia coli, Aspergillus brasiliensis were used to examine the antimicrobial activity of the obtained alginate and showed that the contamination risk was tolerable for all microorganisms examined on the seventh day of incubation. Alginate obtained from Sargassum vulgare was found to be more effective than herbal preservative 705 at 0 hours. Pseudomonas aeruginosa, Staphylococcus aureus are microorganisms with the highest effect in the 0 hour. Since alginate obtained from Sargassum vulgare is more effective on microorganisms in a shorter time than herbal preservative 705, it is predicted that it can be a product that can be used in the field of cosmetics. [ABSTRACT FROM AUTHOR]