جستجوی مقالات مرتبط با کلیدواژه "عناصر معدنی" در نشریات گروه "مهندسی دریا"

In this study chemical composition (protein, fat, carbohydrates, fiber, Ash) and mineral elements (Fe, Mg, Ca, K, Na, I, P, Se, Mn, Zn, Cu) in the red algae Hypnea flagelliformis of Persian Gulf coast in winter 2010 and spring 2011 were analyzed in triplicates. Results showed that amount of energy in100 gr of  red algae H. flagelliformis in spring  was 179. 962 kcal and in winter it was169.872 kcal. Chemical analysis of H. flagelliformis red algae in winter showed that average amounts of protein, carbohydrates, fat, fiber and ash were %15.366 ± 0. 0283 ,%25.851 ± 0.12037,%0.556 ± 0.0351, %0.976 ± 0.0045  and %14.873 ± 0.040 dry weight respectively. Also in spring amounts of these factors were %17.851 ± 0.0045, %26.3003 ± 0.025, %0.3733 ± 0.0057, %1.177 ± 0.052 and %15.263 ± 0.0416 dry weight respectively. Most protein, carbohydrate and fiber belonged to spring algae. This is considerable because of high amount of protein in red algae than green algae and brown. The analysis of  red algae H. flagelliformis showed  that  the average amount of  this elements in winter was respectively, Fe (290.76 ± 0.1527), Mg (1286.6 ± 2.516), Ca (2618.6 ± 0.577), K (1638.9 ± 0.776), Na  (1854.3 ± 2.081), I (6.338 ± 0.2749), P (56.3 ± 0.3), Se (44.7 ± 0.3605), Mn (4.94 ± 0.305), Zn (2.16 ± 0.208) and Cu (1.16 ± 0.0251) mg  per 100 gr of dry  matter. The amount of these elements in spring, was  Fe (233.9 ± 2.891), Mg (1028 ± 2) , Ca (4356.3 ± 2.516) , K ( 1977.6 ± 5.631) , Na ( 2898.6 ± 0.577) , I (7.16 ± 0.05715) , P (53.6 ± 0.3) , Se (40.7 ± 0.2) , Mn (8.05 ± 0.02) , Zn (  5.2 ±0.173) and  Cu( 1. 43 ± 0.0378) mg  per 100 gr of dry matter respectively. results showed that there is a significant difference between the average chemical composition, macro elements and micro elemans in winter and spring (P<0.01). Average iodine elements in two seasons didn’t show significant difference (P>0.01). The results of chemical analysis in the red algae Hypnea flagelliformis  suggest  more  investigations in case of high level of  Iodine, Selenium, Iron, Magnesium, Calcium, Sodium, Potassium as a good supplement.