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INDONESIA
Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology
Published by Pusat Litbang Daya Saing Produk dan Bioteknologi Kelautan dan Perikanan
ISSN : 20895690     EISSN : 24069272     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology
Squalen publishes original and innovative research to provide readers with the latest research, knowledge, emerging technologies, postharvest, processing and preservation, food safety and environment, biotechnology and bio-discovery of marine and fisheries. The key focus of the research should be on marine and fishery and the manuscript should include a fundamental discussion of the research findings and their significance. Manuscripts that simply report data without providing a detailed interpretation of the results are unlikely to be accepted for publication in the journal.
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol 8, No 1 (2013): May 2013" : 5 Documents clear
MOLECULAR IDENTIFICATION OF SPONGES OBTAINED FROM SERIBU ISLANDS NATIONAL PARK AND THEIR ASSOCIATED BACTERIA Patantis, Gintung; Rahmadara, Gemilang; Elfidasari, Dewi; Chasanah, Ekowati
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 8, No 1 (2013): May 2013
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v8i1.80

Abstract

Sponges are simple multicellular animals that produced many pharmaceutical secondary metabolites. Some sponge-associated bacteria are proven to produce the same metabolites as their host, giving an opportunity to mass produce the potential metabolites. The aim of this research was to analyze the diversity of sponge-associated bacteria and to identify  the host sponge. Samples were collected from Seribu Islands National Park. Partial identification of sponges were conducted by molecular technique with the mitochondrial cytochrome oxidase subunit 1 (CO1) as the target area. The diversity of sponge-associated bacteria was determined by Terminal Restriction Fragment Length Polymorphism (T-RFLP) method. Result showed that sponges PS-17-12 has similarity with Petrosia sp., while PS-26-12 and PS-38-12 has similarity with Xestospongia muta. From the 3 sponge samples, 85 species of bacteria was obtained which can be classified into 9 phylums and 1 uncultured bacteria/environment sample. Some of  the sponge-associated bacteria identified were known as a potential producer of metabolites with antibiotic activity.
Prospects and Health Promoting Effects of Brown Algal-derived Natural Pigments ratih pangestuti; Singgih Wibowo
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 8, No 1 (2013): May 2013
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v8i1.26

Abstract

Recently, a great deal of interest has been developed to isolate novel bioactive compounds from marine resources. Among marine resources, marine brown algae are considered valuable sources of structurally diverse bioactive compounds such as chlorophylls and carotenoids. Chlorophyll has been known for its antioxidant activity; meanwhile carotenoid is well known for its anticancer and anti-obesity properties. Therefore, marine brown algal-derived natural pigments have great potential for further development of valuable products in nutraceutical, and pharmaceutical areas. This contribution presents an overview of potential health benefits properties, and prospects of natural pigments derived from marine brown algae. Keywords: Marine algae, natural pigments, nutraceutical, pharmaceutical.
Production and characterization of bacteriocin produced by lactic acid bacteria isolated from rusip Arifah Kusumarwati; Ninoek Indriati; Irma Hermana
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 8, No 1 (2013): May 2013
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v8i1.77

Abstract

Research was conducted to produce and characterize bacteriocin produced by lactic acid bacteria (LAB) isolated from rusip, a traditional Bangkanese fermented fish product. Experiment was started by isolation of lactic acid bacteria from rusip, followed by screening to obtain the best isolate which has the highest bacterial inhibition activity. The selected isolate was then identified and used to produce crude bacteriocin. The crude bacteriocin was characterized through its stability in high temperature and proteolytic enzymes, inhibitory spectrum, pH sensitivity and effect of surfactants. The result showed that CN1.10a isolate which was identified as Lactococcus lactis subsp lactis has the highest bacterial inhibition activities; therefore it was selected to produce crude bacteriocin. The bacteriocin produced was heat stable, sensitive to proteolytic enzymes i.e. proteinase-K and papain but not to RNase. It inhibited Escherichia coli, Listeria monocytogenes and Lactobacillus plantarum. It stable at pH 2.0 to 6.0. Among surfactans used sodium dodecyl sulphate (SDS), lauryl sarcosine and EDTA were able to stimulate bacteriocin production, while the production were strongly inhibited by Tween 20, Tween 80, Triton X-100 and urea. Based on the above characteristic, the bacteriocin was suitable to be used as a preservative of food which has to be processed at high temperature.
Properties of Sodium Alginate–Polyvinyl Alcohol Hydrogels Irradiated By Gamma Ray For Wound Dressing Materials Thamrin Wikanta; Erizal Erizal
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 8, No 1 (2013): May 2013
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v8i1.97

Abstract

A copolymer of sodium alginate (SA)–polyvinyl alcohol (PVA) was synthesized by gamma irradiation  to  make  a  hydrogel  and  study  on its properties has been carried out. A  series of 0.5% -2.0% (w/v) of SA solution and 10% (w/v) of PVA solution were prepared in separate tubes. Each of the SA solution was mixed with PVA solution, then it was irradiated with gamma ray at the doses of 30 kGy, 40 kGy, and 50 kGy (dose rate of 10 kGy/hour), respectively. The properties of hydrogels were evaluated comprising of the physical performance, gel fraction, swelling ratio, water evaporation, and pH. The results showed that increase of irradiation dose can increase the gel fraction, but  increase of SA concentration can decrease the gel fraction. SA concentration of 1-2% with gamma ray irradiation dose of 30 kGy was a suitable condition to produce a good hydrogel with properties as follow, gel fraction of 75.83%-78.70%, swelling ratio of 69.12-80.14 g/g, and maximum water evaporated of 54.21-76.41%, the pH value ranged 5.60-5.65. The hydrogels produced are suitable to be used for  wound dressing, especially for wet wounds, and can be applied for two days.
CYTOTOXIC ACTIVITY AND APOPTOSIS INDUCTION OF T47D CELL LINES BY Turbinaria decurrens EXTRACT Muhammad Nursid; nurrahmi dewi fajarningsih; Ekowati Chasanah
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 8, No 1 (2013): May 2013
Publisher : Research and Development Center for Marine and Fisheries Product Processing and Biotechnol

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.v8i1.78

Abstract

Marine algae is known to contain a wide variety of biomedical compounds having pharmaceutical applications. The aim of this research was to evaluate cytotoxic activity and apoptosis induction of Turbinaria decurrens extract on T47D cell lines.  Cytotoxic activity test was conducted by using MTT assay whereas detection of apoptosis was evaluated by DNA fragmentations and flow cytometry analysis. The MTT test showed that crude extract had medium cytotoxic activity to T47D, HepG2, and C28 cell lines with IC50 value of 172, againts 360 and 330 µg ml-1, respectively. After solvent partition of crude extract, the cytotoxic activity of n-hexane and ethyl acetate fractions T47D cell increased, the cytotoxic activity of n. hexane and ethyl acetate fractions T47D cell increased with  IC50  value of with IC50  43.1 and 51.9 µg ml-1, respectively, whereas IC50 value of methanol fraction was 383.0 µg ml-1. Analysis of DNA fragmentation of T47D cell showed that  both n-hexane and ethyl acetate fractions could not fragment DNA as a features of apoptosis. However, flow cytometry analysis by using annexin-V and propidium iodide staining revealed that n-hexane and ethyl acetate fractions could induce apoptosis in T47D cell. This research indicated that Turbinaria decurrens had potency to induce apoptosis in T47D cells.

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