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INDONESIA
JOURNAL OF COASTAL DEVELOPMENT
Published by Universitas Diponegoro
ISSN : 14105217     EISSN : -     DOI : -
Core Subject : Education,
Education
The Journal of Coastal Development (ISSN 1410-5217) is dedicated to all aspects of the increasingly important fields of coastal and marine development, including but not limited to biological, chemical, cultural, economic, social, medical, and physical development. The journal is jointly published by the Research Institute of Diponegoro University, Semarang, Indonesia and Indonesian Assosiation of Oceanologist (ISOI).
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009" : 6 Documents clear
PHYSICOCHEMICAL PROPERTIES OF SOME DRIED FISH PRODUCTS IN INDONESIA Tri Winarni Agustini; Y. S. Darmanto; Eko Susanto
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Some traditional fish products in Indonesia have potential opportunity for global market, such as fish crackers, dried fish, ikan kayu (‘katsuobushi’) and dried pempek (traditional fish product from Palembang). Study on such products based on its glass transition temperature is still rare. On the other hand, glass transition phases of dried product play an important role in determining food stability because it can give an overview of physicochemical properties of the products. Using its glass transition temperature, dried fish product can be estimated for its shelf life. The purposes of this research are to observe the relation between some physicochemical properties of glass transition temperature of some dried fish products and its water content/water activity to the self life of the products. Dried fish products used were: fish cracker, dried-salted fish, ikan kayu (katsuobushi), fufu (very dried-smoked fish) and dried pempek. The samples were taken from different area in Indonesia (Cilacap, Palembang, and Sulawesi). The sample were taken using purposive sampling method. The method used for analysis of glass transition temperature was DSC method (Differential Scanning Calorimetry), and for water content and water activity were analysed using Aw meter and Moisture analyzer. All samples were analyzed in duplo. Research method used was experimental laboratory with research design of Completely Randomised Design. The experiment was conducted from August 2008 to December 2008 at Fish Product Processing Laboratory, Fisheries Department, Faculty of Fisheries and Marine Science – Diponegoro University, Food Engineering Laboratory – SQU, Oman. The results showed that different sample with different characteristics on physicochemical properties give different in water activity and also water content. The lowest water activity was performed by dried pempek. Glass transition temperature (Tg) of the products was very depend on the water content. The Tg of samples was ranged between 38.4oC – 76.4oC. The water content of the products ranged between 8.28%-37.28%. The Aw of the product was ranged between 0.57 – 0.87.
ANTIBACTERIAL ACTIVITY OF A PIGMENT PRODUCING-BACTERIUM ASSOCIATD WITH Halimeda sp. FROM ELAND-LOCKED MARINE LAKE KAKABAN, INDONESIA Ocky Karna Radjasa; Leenawaty Limantara; Agus Sabdono
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

A pigment producing-bacterium associated with green alga Halimeda sp., was successfully isolated from a land-locked marine lake Kakaban, East Borneo, Indonesia and screened for an antibacterial activity against pathogenic Staphylococcus aureus. The bacterium was identified as Pseudoalteromonas piscicida based on its 16S rDNA and was found to produce xanthophyll pigments and to amplify gene fragments of Non-ribosomal peptide synthetase (NRPS).
BWRO DESALINATION FOR POTABLE WATER SUPPLY ENHANCEMENT IN COASTAL REGIONS I Nyoman Widiasa; Vita Paramita; Heny Kusumayanti
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Most of coastal regions in Indonesia have experienced water scarcity where water resources are becoming more and more threatened due to the rapid growth of population, aquaculture industries and agricultures. Brackish water reverse osmosis (BWRO) desalination may be used to overcome the supply potable water problem in the coastal regions. Brackish water having total dissolved solids (TDS) content in the range of 1,000–10,000 ppm can be desalinated at a reasonable cost. This work was aimed to find valuable technical data for plant design and operation. Cost analysis also was conducted to obtain specific water cost. The results show that stable system performance was achieved. Based on a case study of small scale BWRO with capacity of 50 m3/day, specific water cost was around of IDR 6,100/ m3.
SCREENING AND CHARACTERIZATION OF BACTERIAL CHITOSANASE FROM MARINE ENVIRONMENT Ekowati Chasanah; Dewi Seswita Zilda; Agustinus R Uria
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Screening of extracellular chitosanase from bacterial isolates associated with marine sponges have been done. Out of 100 bacterial isolates, forty isolates were capable of forming clearing zones on the chitin media and one isolate, 34-b, produced the highest chitinolytic index. The enzymes was produced on chitin liquid medium at 37oC in a shaking waterbath for a five-day cultivation. Crude enzymes were prepared by cell-free supernatant (CFS) and concentrated through 70% (saturated) ammonium sulphate percipitation followed by dialysis. The enzymes worked best at pH and temperature of 6-7 and 60oC, respectively. The half-life (T1/2) for chitosanase activity was 500.2 min or 8.34 hours (at 37oC) and 55.12 min (at 50oC), indicating the enzyme are quite stable at that temperature. However, around 80% of the original activity was lost at 60oC after 15 min of incubation. 
MANAGEMENT MEASURES OF SHRIMP TRAWLING FISHERY IN ARAFURA SEA, INDONESIA: A CHALLENGE Nurul Af-idati; Sang-Go Lee
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

Since there were many evidences on trawling impact to the environment and society, government has banned trawl operations in Indonesian waters except for those in the Arafura Sea. It is not solely acquitted trawl operation in the area without restrain, but it has been put together with the measures taken to exploit the shrimp resources in optimal manner. Those are input controls, output controls and technical measures. This paper examines two major challenges in applying these management measures: declining of shrimp stock and lack of legal enforcement. Come what may the fishing regulations impose in the shrimp trawling, without effective enforcement, the purpose of fisheries management unlikely will be achieved.
DIVERSITY, DISTRIBUTION AND BIOLOGICAL ACTIVITY OF SOFT CORALS (OCTOCORALLIA, ALCYONACEA) IN SINGAPORE Beverly Pi Lee Goh; Grace Enhui Tan; Lik Tong Tan
JOURNAL OF COASTAL DEVELOPMENT Vol 12, No 2 (2009): Volume 12, Number 2, Year 2009
Publisher : JOURNAL OF COASTAL DEVELOPMENT

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Abstract

The Southern Islands of Singapore are known to contain coral reefs which are high in biodiversity. However, the diversity of soft corals had received little attention to date. This study was conducted to determine the soft coral diversity in Singapore reefs as well as to conduct preliminary bioactivity tests on the organic extracts from these soft corals. A 100-meter line transect was used to survey soft corals at a 3m depth at ten different sample sites. Sclerites from samples were used to identify the soft corals to the generic level. This study uncovered the following genera of soft corals: Carijoa spp., Cladiella spp., Sinularia spp., Lobophytum spp., Sarcophyton spp., Stereonephthya spp., and Nephthea spp. In addition, an unidentified genus of soft coral was observed at Kusu Island. Cladiella spp. yielded the highest number of colonies, and Sarcophyton spp. had the highest coverage in terms of total colony diameter. The brine shrimp (Artemia salina) toxicity assay was carried out to screen for toxicity of the soft coral extracts at concentrations of 10, 100, and 1000 ppm. Results showed high levels of toxicity in extracts of Sarcophyton spp. and Cladiella spp., indicating that these soft corals are potentially good sources of bioactive compounds for drug discovery.

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