K. Pirian; Kh. Piri; J. Sohrabipour; S. Tamadoni Jahromi; R. Rabiei
Abstract
Nutritional, pharmaceutical, and healthcare properties of macroalgae are the most investigated subjects in macroalgae. In this study, nutritional and physicochemical properties of two important green macroalgae, Ulva intestinalis and Ulva linza, collected from the Persian Gulf, were investigated. In ...
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Nutritional, pharmaceutical, and healthcare properties of macroalgae are the most investigated subjects in macroalgae. In this study, nutritional and physicochemical properties of two important green macroalgae, Ulva intestinalis and Ulva linza, collected from the Persian Gulf, were investigated. In all analyses, we followed the reference methods with some modification. Results revealed that U. intestinalis contained higher protein content (15.79%) as compared with U. linza (9.90%) while U. linza had higher content of lipid (2.30%), ash (26.66%), phenol (2.16 mgGA/g) and flavonoid (11.7 mgQE/g) as compared with U. intestinalis with 1.98% lipid 22.50% ash, 1.02 mgGA/g phenol and 8.2 mgQE/g flavonoid. The two species did not show any significant differences about all analyzed compositions (P<0.05) except lipid content. In physicochemical analyses, U. intestinalis showed higher water holding capacity (17.5 g/g), swelling capacity (9.5 mL/g), and oil holding capacity (5.5 g/g) as compared with U. linza with water holding capacity of 8.7 g/g, swelling capacity of 5.7 mL/g and oil holding capacity of 2.6 g/g. The difference between physicochemical properties of two species were all statically significant (P<0.05). The study showed that the two algae species investigated with high protein content could be considered as valuable plant sources for direct consumption as human food and due to the unique physicochemical properties, the two species could be used as ingredients to improve the structure and nutritional values of the food products in food industries.
K. Pirian; Kh. Piri
Abstract
Portulaca oleracea L. as a medicinal plant, having valuable secondary metabolites, such as noradrenaline, dopamine and omega-3, is used as anti-cancer, antioxidant, and blood purifier factor. Callus inducted from hairy roots of some medicinal plants are used to increase the production of secondary metabolites, ...
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Portulaca oleracea L. as a medicinal plant, having valuable secondary metabolites, such as noradrenaline, dopamine and omega-3, is used as anti-cancer, antioxidant, and blood purifier factor. Callus inducted from hairy roots of some medicinal plants are used to increase the production of secondary metabolites, cell suspension culture, protoplast culture, induction of embryonic callus and gene transfer agents. In this experiment, various concentrations of two hormones of BA and 2,4-D were examined on transgenic hairy roots of P. oleracea to produce callus. Hairy roots transgenic of P. oleracea were induced by Agrobacterium rhizogene, 15834 strain. Hairy roots produced by Agrobacterium rhizogenes15834 strain, were transferred to 1/2MS medium containing different concentrations of BA and 2,4-D hormones. BA and 2,4-D hormones were used, both at three levels of 0, 0.5 and 1 mg per liter and in three replications. Our results indicated that BA and 2,4-D hormones alone as well as without hormone treatment (control) did not show any callus formation. The treatments containing different ratios of BA and 2,4-D hormones, caused callus formation in varying degrees. The medium containing 1mg/L BA and 1 mg/L of 2,4-D hormones showed the higher production of callus.
