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Quantification of carbonate crystals using FTIR technique in some calcareous algae occurring along the southeast coasts of India

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Title Quantification of carbonate crystals using FTIR technique in some calcareous algae occurring along the southeast coasts of India
 
Creator Arunkumar, K.
Buvaneswari, B.
Murugan, M.
 
Subject Calcareous algae
Morphological volume
Crystal biomineral
Calcite
Aragonite
Dolomite
 
Description 2289-2297
In this study,
morphological volume, biomass, total carbonate biominerals and crystal
biominerals (calcite, aragonite and dolomite) were recorded for eight species
of calcareous algae (CA) which occur abundantly along the southeast coast of
India. Morphological volume was inversely proportional to biomass in all the CA
studied. Total carbonate biomineral content recorded by decalcification was higher
than the total crystal biomineral content recorded by FTIR spectroscopy and the
differences were less depends on algae. Using FTIR spectroscopy, calcite,
aragonite and dolomite were detected in all the samples of calcareous red and
green algae, whereas only calcite was detected in the brown alga. High biomass
was recorded in CA with low morphological volume, and they can be arranged in
the following decreasing order:  Corallina elongata, Amphiroa fragilissima, Jania rubens, Udotea peltata, Halimeda
opuntia, H. macroloba, Neomeris
annulata, and Padina boergesenii.
Among the crystal biominerals, calcite was found in major quantity; aragonite,
moderate quantity; and dolomite, minor quantity. FTIR spectroscopy adopted
in this study is found to be a
promising alternative technique to quantify the composition of in situ crystal biominerals in CA. Accumulation
of crystal biominerals in CA is not only species specific but also depends on
the choice of coasts.
 
Date 2016-06-30T08:52:02Z
2016-06-30T08:52:02Z
2014-12
 
Type Article
 
Identifier 0975-1033 (Online); 0379-5136 (Print)
http://hdl.handle.net/123456789/34601
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJMS Vol.43(12) [December 2014]