COLORIMETRIC DETERMINATION OF THE ALGIN CONTENT OF THREE SOUTH AFRICAN KELP SEAWEEDS (ECKLONIA MAXIMA, LAMINARIA PALLIDA AND MACROCYSTIS ANGUSTIFOLIA)

REFERENCES

• Anderson , G. 1956 . On the detection of alginic acid in tissues by means of birefringence . Proc. Int. Seaweed Symp. , 2 : 119 – 124 .
   Google Scholar
• Bell , E. A. and Charlwood , B. V. 1980 . “ Secondary Plant Products. ” . In Encyclopedia of Plant Physiology New Series V. 8. 671 Springer-Verlag .
   Google Scholar
• Black , W. A. P. 1948a . The seasonal variation in chemical constitution of the sublittoral seaweeds common to Scotland. Part I: . Laminaria cloustoni. J. Soc. Chem. Ind. , 67 : 165 – 168 .
   Google Scholar
• Black , W. A. P. 1948b . The seasonal variation in chemical constitution of the sublittoral seaweeds common to Scotland. Part II: . Laminaria digitata. J. Soc. Chem. Ind. , 67 : 169 – 172 .
   Google Scholar
• Black , W. A. P. 1948c . The seasonal variation in chemical constitution of the sublittoral seaweeds common to Scotland. Part III: Laminaria saccharina . Saccorhiza bulbosa. J. Soc. Chem. Ind. , 67 : 172 – 176 .
   Google Scholar
• Black , W. A. P. 1948d . The seasonal variation in chemical composition of some of the littoral seaweeds common to Scotland. Part I . Ascophyllum nodosum. J. Soc. Chem. Ind. , 67 : 355 – 357 .
   Google Scholar
• Black , W. A. P. 1949 . The seasonal variation in chemical composition of some of the littoral seaweeds common to Scotland. Part II. Fucus serratus, Fucus vesiculosus, Fucus spiralis . Pelvetia canaliculata. J. Soc. Chem. Ind. , 68 : 183 – 189 .
   Google Scholar
• Black , W. A. P. 1950a . The effect of the depth of immersion on the chemical constitution of some of the sub-littoral seaweeds common to Scotland . J. Soc. Chem. Ind. , 69 : 161 – 165 .
   Google Scholar
• Black , W. A. P. 1950b . The seasonal variation in weight and chemical composition of the common British Laminariaceae . J. mar. biol. Assoc. U.K. , 29 ( 1 ) : 45 – 72 .
   Web of Science ®Google Scholar
• Bitter , T. and Muir , H. M. 1962 . A modified uronic acid carbazole reaction . Analyt. Biochem. , 4 : 330 – 334 .
   PubMed Web of Science ®Google Scholar
• Blumenkrantz , N. and Asboe-Hansen , G. 1973 . New method for quantitative determination of uronic acids . Analyt. Biochem. , 54 : 484 – 489 .
   PubMed Web of Science ®Google Scholar
• Dieckmann , G. S. 1980 . Aspects of the ecology of Laminaria pallida (Grev.) J. Ag. off the Cape Peninsula (South Africa) I: Seasonal growth . Bot. Mar. , 23 : 579 – 585 .
   Web of Science ®Google Scholar
• Haug , A. and Jensen , A. 1954 . Seasonal variations in the chemical composition of Alaria esculenta, Laminaria saccharina, Laminaria hyperborea Laminaria digitata from northern Norway . Rep. Norw. Inst. Seaweed Res. , 4 : 14
   Google Scholar
• Haug , A. , Larsen , B. and Smidsr⊘D , O. 1974 . Uronic acid sequence in alginate from different sources . Carb. Res. , 32 : 217 – 225 .
   Web of Science ®Google Scholar
• Jensen , A. and Haug , A. 1956 . Geographical and seasonal variation in the chemical composition of Laminaria hyperborea Laminaria digitata from the Norwegian coast . Rep. Norw. Inst. Seaweed Res. , 14 : 8
   Google Scholar
• Kain , J. M. 1971 . Synopsis of biological data on . Laminaria hyperborea. FAO Fisheries Synopsis No. , 87 Rome
   Google Scholar
• Larsen , B. and Haug , A. 1961 . The distribution of iodine and other constituents in the stipe of Laminaria hyperborea (Gunn.) Foslie . Bot. Mar. , 2 : 250 – 254 .
   Google Scholar
• Lewis , J. R. 1964 . The Ecology of Rocky Shores. 323 London. : The English Universities Press Ltd. .
   Google Scholar
• Lüning , K. and Crisp , D. J. 1971 . “ Seasonal growth of Laminaria hyperborea under recorded underwater light conditions near Helgoland ” . In Proc. 4th Europ. Mar. Biol. Symp. 347 – 361 . Cambridge : University Press .
   Google Scholar
• Mateus , H. , Regenstein , J. M. and Baker , R. C. 1977 . Studies to improve the extraction of mannitol and alginic acid from Marcrocystis pyrifera a marine brown alga . Econ. Bot. , 31 : 24 – 27 .
   Google Scholar
• Percival , E. G. V. and Ross , A. G. 1948 . A colorimetric method for the estimation of alginic acid in seaweed specimens . J. Soc. Chem. Ind. , 67 : 420 – 421 .
   Google Scholar
• Rose , R. C. 1951 . Extraction of alginates from Canadian seaweed . Can. J. Technol. , 29 : 19 – 28 .
   Google Scholar
• South , G. R. , Jensen , A. and Stein , J. R. 1979 . “ Alginate levels in New Zealand Durvillaea (Phaeophyceae) with particular reference to age variations in D. antarctica. ” . In Proc. Int. Seaweed Symp. Vol. 9 , 133 – 142 .
   Google Scholar
• Vincent , D. L. 1956 . The preparation of sodium alginate from rockweed . Can J. Technol. , 34 : 220 – 226 .
   Google Scholar
• von Holdt , M. M. , Ligthelm , S. P. and Nunn , J. R. 1955 . South African seaweeds: seasonal variations in the chemical composition of some Phaeophyceae . J. Sci. Food Agric. , 6 : 193 – 197 .
   Google Scholar