Crude Protein Values and Amino Acid Profiles of Some Red Algae Collected from Çanakkale

P resent study consists the total protein values and amino acids components of the some red algae, collected from coastal zones of the Dardanelles and inland water . Crude proteins of samples were determined by the Kjeldahl method and were calculated using a nitrogen conversion factor of 6.25. Levels of amino acids were measured in algae samples using gas chromatography. Total protein contents were 36.72% in Batrachospermum gelatinosum (Linnaeus) De Candolle, 32.3% in Ceramium rubrum var. barbatum G. Feldmann-Mazoyer, 27.84% in Lemanea fluviatilis (Linnaeus) C. Agardh and 19.5% in Phyllophora crispa (Hudson) P.S. Dixon. In all, thirty two amino acids were identified and estimated. Analysis revealed the presence of eight free essential, nine free non essential and fifteen other amino acids. Aspartic acid was the major constituent in all the samples. Kinds and percentage of amino acids vary according to algae.

[1]  H. Attia,et al.  Chemical composition and functional properties of Ulva lactuca seaweed collected in Tunisia , 2011, Food Chemistry.

[2]  S. Pacheco,et al.  Gross Chemical Profile and Calculation of Nitrogen-to-Protein Conversion Factors for Five Tropical Seaweeds , 2011 .

[3]  P. Harnedy,et al.  BIOACTIVE PROTEINS, PEPTIDES, AND AMINO ACIDS FROM MACROALGAE 1 , 2011, Journal of phycology.

[4]  V. V. Nagar,et al.  Biochemical composition of eight benthic algae collected from Sunderban , 2008 .

[5]  Z. Chi,et al.  Diversity of marine yeasts with high protein content and evaluation of their nutritive compositions , 2008, Journal of the Marine Biological Association of the United Kingdom.

[6]  A. Badawy,et al.  Application of the Phenomenex EZ:faast™ amino acid analysis kit for rapid gas-chromatographic determination of concentrations of plasma tryptophan and its brain uptake competitors , 2007, Amino Acids.

[7]  A. Kale,et al.  Elevated amniotic fluid amino acid levels in fetuses with gastroschisis. , 2006, Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas.

[8]  K. Hamre,et al.  Protein content and amino acid composition of the live feed rotifer (Brachionus plicatilis): With emphasis on the water soluble fraction , 2006 .

[9]  E. Barbarino,et al.  An evaluation of methods for extraction and quantification of protein from marine macro- and microalgae , 2005, Journal of Applied Phycology.

[10]  Y. Fujita,et al.  Effect of temperature, salinity and light intensity on the growth of Gracilaria spp. (Gracilariales, Rhodophyta) from Japan, Malaysia and India , 2001 .

[11]  P. Cheung,et al.  Nutritional evaluation of some subtropical red and green seaweeds: Part I — proximate composition, amino acid profiles and some physico-chemical properties , 2000 .

[12]  J. Bronowicki,et al.  Nutritional value of proteins from edible seaweed Palmaria palmata (dulse). , 1999, The Journal of nutritional biochemistry.

[13]  V. Ahmad,et al.  Some Chemical Constituents from Marine Algae of Karachi Coast (Arabian Sea) , 1999 .

[14]  J. Fleurence,et al.  Seaweed in food products: biochemical and nutritional aspects , 1993 .

[15]  Hiroyuki Noda,et al.  The main seaweed foods in Japan , 1987, Hydrobiologia.

[16]  T. Fujiwara-Arasaki,et al.  The protein value in human nutrition of edible marine algae in Japan , 1984, Hydrobiologia.

[17]  C. Dawczynski,et al.  Amino acids, fatty acids, and dietary fibre in edible seaweed products , 2007 .

[18]  P. Robert,et al.  Dietary fiber, amino acid, fatty acid and tocopherol contents of the edible seaweeds Ulva lactuca and Durvillaea antarctica , 2006 .

[19]  M. Ganesan,et al.  Effect of ultraviolet-B radiation on biochemical composition of three Ulva species (Chlorophyta) from southeast coast of India , 2002 .

[20]  Joël Fleurence,et al.  Seaweed proteins: biochemical, nutritional aspects and potential uses , 1999 .