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Bio‐activity of marine cyanobacteria in the animal‐based systems: Modulation of food intake, body weight and some haematological characters
Author(s) -
SUNDARARAMAN M,
AVERAL H I,
AKBARSHA M A,
SUBRAMANIAN G
Publication year - 1994
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1994.tb04961.x
Subject(s) - biology , cyanobacteria , spirulina (dietary supplement) , food intake , lyngbya , body weight , botany , zoology , ecology , bacteria , endocrinology , raw material , genetics
Summary With a view to assess the bioactive potential of the unexploited marine cyanobacteria available in abundance in the marine habitat, water‐soluble fraction of the ethanolic extract of 12 different strains of marine cyanobacteria were administered to male rats and their impact on food intake, body weight and certain haematological characters including RBC counts, WBC‐TC and DC, platelet counts, haemoglobin content and mean corpuscular haemoglobin was studied. The results suggest prospective applications as feed/nutritional supplements; among them, Spirulina subsalsa BDU 30311, Oscillatoria salina BDU 10142 and Phormidium valderianum BDU 20571 appear highly promising in this regard. Lyngbya sp. BDU 30601 and Pseudanabaena schmidlei BDU 30313 appear to contain one or more toxins and deter food intake and cause decrease in body weight. With Synechococcus elongatus BDU 30312 food intake increased over the control which was not commensurate with the change in body weight. The results relating to the haematological characters indicate bioactivity of the cyanobacteria in the animal‐based systems, some of which are positive, whereas a few strains like Lyngbya BDU 30601 are negative, implying their pharmaceutical application.