Browsing by Author "Durmaz Y."

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Effect of ferric chloride (FeCl3) concentration on pigmenproduction of Porphyridium Cruentum
(2022-06-01) Erbil G.Ç.; Elp M.; Durmaz Y.
Microalgae are unicellular organisms with different shapes and sizes. Wide range of biomolecules (protein, fatty acids, carotenoids, phycobiliproteins, etc.) could be produced and accumulated by these organisms. P. cruentum is known as a source of high-value biomolecules named phycobiliproteins. These pigments used in various areas such as food, cosmetics, nutraceutical and pharmaceutical industries. In this study, the effect of ferric chloride (FeCl3) concentration (0.234 × 10-5 – 1.17 × 10-5 M) in F/2 medium on growth and pigment composition of P. cruentum was investigated. Using the 0.585 × 10-5 M of FeCl3 (group C) provides higher cell number than other concentrations on P. cruentum culture (P<0.05). The 0.234 × 10-5 FeCl3 was provided the highest phycoerythrin production while the highest cellular phycoerythrin accumulation was obtained with 5.85 × 10-5 FeCl3 concentration. It was found that pigment accumulation was induced by low and high concentrations of ferric chloride. As a result of this study, it was concluded that the ferric chloride could be used as a promoter for pigment accumulation in P. cruentum biomass.
Effects on fatty acids, biochemical composition and growth of rotifer (Brachionus plicatilis) fed with different concentrations of Nannochloropsis sp.
(2024-10-01) Osmanoğlu M.İ.; Elp M.; Durmaz Y.
Phycoerythrin Accumulation of Porphyridium cruentum Culture at Indoor Tubular Photobioreactor
(2022-01-01) Erbil G.Ç.; Elp M.; Durmaz Y.
Microalgae are used in aquaculture and various industrial fields such as pharmaceuticals, feed, food, agriculture, and energy. Microalgae is a potential natural food coloring agent as pigments and contain bioactive components such as polyunsaturated fatty acids (PUFA) in their composition. Porphyridium cruentum is a red alga with the ability to accumulate valuable pigments biomolecules such as phycoerythrin (PE), chlorophyll, and other carotenoids. In this study, P. cruentum was cultured for 51 days at the indoor pilot scale tubular photobioreactor (PBR). The highest cell number was 31.84 x 106 cells mL-1 and the highest specific growth rate was determined as 0.80. Total phycobiliprotein and phycoerythrin amounts were reached 0.252 ± 0.009 mg mL-1 and 0.224 ± 0.007 mg mL-1 at the early exponential phase, respectively.