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Ambariyanto .
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CHARACTERIZATION and QUALITY of SEMI REFINED CARRAGEENAN (SCR) PRODUCTS FROM DIFFERENT COASTAL WATERS BASED ON FOURIER TRANSFORM INFRA RED TECHNIQUE Eko Nurcahya Dewi; YS. Darmanto; Ambariyanto .
JOURNAL OF COASTAL DEVELOPMENT Vol 16, No 1 (2012): Volume 16, Number 1, Year 2012
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Semi Refined Carrageenan (SRC) product is considerably cheaper and easy to produce as a natural polysaccharide hydrophilic in food and other product. The aim of this research was  to evaluate  the quality of two different SCR products come from different  coastal waters  of seaweed culture. The products  were then compared  to commercial SCR on the quality based on their  chemical  quality (Fourier Transform Infra Red, sulphate content and heavy metals) and physical quality  (gel strength and viscosity). The method of FTIR was useful as a quality screening for commercially seaweed culture at different geografic places based on their chemical structure. Raw material that have been used for SCR product  was  Eucheuma cottonii with k-carrageenan type. FTIR spectroscopy showed the molecular present in three different samples are quite similar, it can be found spectra band of 1257,59 cm-1 which referred to esther sulphate, 933,55 cm-1 for 3,6 anhydrogalactose and 848,68 cm-1 assigned to  galactosa-4- sulphate respectively. The SCR product from  different coastal waters were different on their quality.
EEFECTS OF EUTROPHICATION ON THE SIZE AND NUCLEUS OF SYMBIOTIC ZOOXANTHELLAE Ambariyanto .
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 1 (1997): Volume 1, Number 1, Year 1997
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Zooxanthellae (Symbiodinium sp) from the giant clams, Tridacna maxima, were monitored for their responses to ammonium and phosphate addition in the field. Nutrient was added into ponded microatolls at every low tide using Nutrient Dispersal units (NUDs) moored outside the atolls to reach final concentrations of 10 µm for ammonium and 2µm of phosphate. Transmission electron micrograph showed that zooxanthellae size (as the maximum diameter) from nitrogen-treated clams was significantly than those from other treatments (P<0.05). However, the cross sectional area of the nucleus was not significantly affected by the treatment smaller (P>0.05). The results suggests that the condition of zooxanthellae, such as the size of zooxanthellae from giant clams is influenced by relatively small changes in the concentration of nitrogen in the water column.
THE ROLE OF SYMBIOTIC ZOOXANTHELLAE ON GIANT CLAM NUTRITION Ambariyanto .
JOURNAL OF COASTAL DEVELOPMENT Vol 1, No 1 (1997): Volume 1, Number 1, Year 1997
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Zooxanthellae, Symbiodinium sp, are single cell dinoflagellate algae known to live in association with many marine invertebrates such as hermatypic corals, sea anemones, jellyfish and giant clams (family Tridacnidae). In giant clams, these photosynthetic algae are located in a tubular system (known as Z tube system) which occurs within the clams. Apart from filter feeding, the nutrition of the clams is provided by zooxanthellae. These algae are capable of translocating part of their photosynthetic products to the host. CZAR values are also discussed.
Co-Authors Eko Nurcahya Dewi YS Darmanto