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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 357 Documents
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PENGURANGAN CEMARAN LOGAM BERAT PADA PERAIRAN DAN PRODUK PERIKANAN DENGAN METODE ADSORBSI Tuti Hartati Siregar
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 4, No 1 (2009): May 2009
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.v4i1.153

Abstract

Kandungan logam berat yang terdapat dalam jumlah yang kecil di perairan dibutuhkan oleh makhluk hidup, tetapi dalam jumlah besar dapat menyebabkan berbagai masalah. Kehadiran industri berperan dalam meningkatkan cemaran logam berat. Berbagai cara telah dilakukan untuk mengurangi cemaran logam berat. Metode adsorbsi adalah cara yang banyak digunakan untuk mengurangi cemaran logam berat, karena aplikasinya yang cukup luas untuk berbagai jenis logam berat. Beberapa bahan alami yang ramah lingkungan seperti kitosan dan selulosa dapat digunakan sebagai adsorben. Baik kitosan maupun selulosa harus melewati tahap modifikasi untuk meningkatkan efektifitasnya sebelum digunakan sebagai adsorben.
PRODUCTION OF SEMI REFINE CARRAGEENAN (SRC) FROM FRESH Kappaphycus alvarezii USING MODIFIED TECHNIQUE WITH MINIMUM USE OF FUEL Jamal Basmal; Diah Ikasari
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 9, No 1 (2014): May 2014
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.v9i1.68

Abstract

Semi refine carrageenan (SRC) is generally produced by cooking dried Kappaphycus alvareziiinto hot alkali solution at temperature of 80ºC for 2 hours. However, the temperature fluctuationduring the production process affects to the increase of production cost and the reduction of theyield as well as the decrease of SRC quality. The improvement of this process can be achieved bysoaking immediately fresh K. alvarezii into cold alkali solution, called cold alkali technique. Inorder to obtain its optimum condition, modification of SRC production process using cold alkalitechnique had been conducted. Fresh K. alvarezii was soaked in 8% KOH at room temperaturefor 10, 20, 30, 40, and 50 days. The alkalinized K. alvarezii was then washed with fresh water untilpH reached to 7 – 8, chopped to the size of 3 – 5 mm and then dried under sun light. The SRCbeing produced was then evaluated for its quality. The result showed that the quality of SRC fromfresh seaweed K. alvarezii was affected by soaking time. The highest quality of SRC was obtainedby soaking K. alvarezii with 8% KOH solution for 50 days. This was indicated by the ester sulphatecontent of 6.74 %, water gel strength of 746 g/cm2, and moisture content of 11.73 %.
Comparison of Storet and Pollution Index Method to Assess the Environmental Pollution Status: A Case Study from Lampung Bay, Indonesia Giri Rohmad Barokah; Farida Ariyani; Tuti Hartati Siregar
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 12, No 2 (2017): August 2017
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.v12i2.287

Abstract

The determination of pollution status is an important process of environmental quality monitoring especially in strategic waters for coastal areas, such as in Lampung Bay. An effective and sensitive Water Quality Index (WQI) method is needed, to accurately determine the environmental pollution status. This study aimed to compare the sensitivity of Storage and Retrieval of Water Quality data System (STORET) and Pollution Index (PI) as a WQI method, a case study from Lampung Bay coastal waters, Indonesia.  Water quality analysis i.e. Dissolve Oxygen (DO), pH, salinity, nitrite, nitrate, phosphate and ammonia was conducted spatially (three zones of Lampung Bay; river mouth, aquaculture and bay area) and seasonally (April and October 2015). The study found that nitrate and phosphate values were exceeded the limits of water quality standard (Indonesia Ministry of Environment Decree No. 51/2004) for marine organisms. However it may still support the aquaculture activities. The two WQI methods produced different pollution status of Lampung bay. STORET was found to be more sensitive method. Pollution Index method revealed a status of moderately polluted while STORET showed heavily polluted status. Therefore, this study suggest the use of STORET index, compare to Pollution Index, in an assessment of pollution status at watershed area.
Lepidocybium flavobrunneum as a resource of essential fatty acids Jamal Basmal
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 5, No 3 (2010): December 2010
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.v5i3.54

Abstract

Lepidocybium flavobrunneumis a pelagic fish with high economical value. Its high price isdue to its nutritional contents that comprise of high unsaturated and low saturated fatty acids. It isreported that the total contents of Saturated Fatty Acids (SFA) in Lepidocybium flavobrunneumisonly 2.9%, while the amount of Unsaturated Fatty Acids are 97.06% that consist of 8.32% ofpolyunsaturated (PUFA) and 88.74% of Monounsaturated Fatty Acids (MUFA). Approximately,0.05% of linolenic acids -3 (C18:3), 0.51% of eicosatrienoic acids -3 (C20:3) and 1.98% ofdocosahexanoic acids -3 (C22:6) comprise the PUFAs; whereas the MUFAs is composed by84.71% of oleic acids -9 (C18:1) and 0.27% of nervonoic acids -9 (C24:1). -6in Lepidocybiumflavobrunneum contains 0.46% of linoleic acids -6 (C18:2), 0.72% of arachidonic acids -6(C20:4) and 0.01% of lauric acids (C20:0).
OPTIMIZATION OF BACTERIOCIN PRODUCTION BY Lactococcus lactis ssp. lactis CN1.10a ORIGIN FROM RUSIPS Ninoek Indriati; Arifah Kusmarwati; Irma Hermana
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 9, No 3 (2014): December 2014
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.v9i3.107

Abstract

Previous study of bacteriocin production on laboratory scale (100 mL) that used MRS broth medium produced unstable activity of bacteriocin. Therefore, this study aims to determine the optimum growth conditions and media for production of bacteriocin. Bacteria used in this research was a lactic acid bacteria (LAB) Lactococcus lactis ssp. lactis CN1.10a  isolated from rusip, a traditional Bangkanese fermented fish product.The bacteria was first cultivated for subsequent use of bacteriocins production on intermediate scale (2L). Followed by the optimization of temperature, pH and medium for the bacteriocin production, determination of cell growth curve, bacteriocin production curve, bacteriocin activity on that scale, and also stability of bacteriocin during storage.The results showed that the optimum temperature and pH for the growth of producer cell were 28°C and pH 6. The greatest activity of bacteriocin was produced on CM medium (1% sucrose, 0,45% peptone, 1% yeast extract, 2,84% KH2PO4, 0,2% NaCl and 0,02% MgSO4.7H20) in addition of sucrose as carbohydrate source. Based on the growth curve performedon CM medium with KH2PO4, the L. Lactis ssp lactis CN1.10a was relatively stable up to 48 hours. Bacteriocin produced by the cell was  8000 AU/mlat24th hour.Bacteriocin  was relatively stable when stored at -20°C for 1month with a relative activity of 69,4%.
Back Cover Squalen Bulletin Vol. 12 No. 2 Tahun 2017 Squalen Squalen
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 12, No 2 (2017): August 2017
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.v12i2.310

Abstract

Preface Squalen Bulletin Vol. 12 No. 3 Tahun 2017 Squalen Squalen
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 12, No 3 (2017): December 2017
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.v12i3.318

Abstract

Industrialization in fisheries: a challenge to change Achmad Poernomo; Endang Sri Heruwati
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 6, No 3 (2011): December 2011
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.v6i3.65

Abstract

To manage with the Indonesian vision as the biggest producer of fisheries in 2015, capture,aquaculture, and post-harvest fisheries should be ready to operate at large or business scale.Consequently, industrialization should be promoted since this is the most appropriate way tomanage fisheries in business manner. Though it has a positive goal to maximize the utilization offisheries resource for the improvement of economic and prosperity of Indonesian people, however,industrialization undoubtedly retains a negative impact in terms of threats on the sustainability offishery and other natural resources. This article summarises review and analysis aiming to developan ideal model in order to strengthen the fisheries industrialization in Indonesia. Based on previousweaknesses, the ideal model is the one that reflects an inclusive and holistic manner, suitable forvarious characteristics of industries in each typical areas and people of Indonesia, with the emphasison competitive advantage, untraditional, and commercial basis, especially in respect to thedevelopment of a strong fisheries business. This kind of model should also maintain harmonizedand coordinated programs and actions between involved related institutions. Research supportsare needed to develop and test the most appropriate model. Also, in technical basis, innovationson fish capture, aquaculture, as well as processing technologies are urgently needed as acomplement to the developed model of fisheries industries. One thing that should be kept in mindis the importance of management and conservation of natural resources, including resource forfisheries capture and aquaculture, germ plasms and genetic fish resources, as well as marinemicroorganisms, as these all are the main assets for the development of marine and fisheries inIndonesia.
Cloning of a Transglutaminase Gene from Streptomyces thioluteus TTA 02 SDS 14 Seprianto Seprianto; Dewi Seswita Zilda; Yusro Nuri Fawzya; Suharsono Suharsono; Puspita Lisdiyanti; Agustinus Robert Uria
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 11, No 1 (2016): May 2016
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.v11i1.189

Abstract

Microbial Transglutaminase (MTGase, EC 2.3.2.13) is an enzyme that catalyzes the transfer of acyl group. Many microbial strains that produce MTGase belong to Streptomyces members. This research was aimed at cloning of a MTGase gene. PCR–based screening of ten MTGase-producing streptomyces isolates from soil in West Nusa Tenggara led to detection of one potential isolate, designated as TTA 02 SDS 14. The partial  MTGase-encoding gene (470 bp)  was amplified by PCR and sequenced. The sequence result indicate its similarity of 93 % with that of Streptomyces cinnamoneus. The 16S rRNA gene analysis showed its identity as Streptomyces thioleteus. Fosmid-based construction of a genomic library from the isolate  and subsequent screening led to the isolation of  a ~40-Kb fosmid harboring a MTGase gene.
THE POTENTIAL OF HETEROTROPHIC MICROALGAE (Schizochytrium sp.) AS A SOURCE OF DHA Arif Rahman Hakim
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 7, No 1 (2012): May 2012
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.v7i1.13

Abstract

Docosahexanoic acid (DHA) is commercially obtained from marine fish. With an increasinghuman population, the supplies of DHA are still not sufficient to meet the world’s need of DHA asfood supplement. The objective of this review is to discuss Schizochytrium sp., one of microalgaewhich is rich in DHA, as one of the best candidate as producer of sustainable and affordable DHA.Heterotrophic microalgae, especially genus Schizochytrium, produces omega-3 fatty acids up to40% of total unsaturated fatty acids.  Cultivation of the microalgae is easy as it does not requiresunlight as source of energy. Previous publication reported that several local strains ofSchizochytrium have been isolated from mangrove area in Indonesia. We expect that thosestrains can be cultivated in mass production as producer of DHA.

Page 10 of 36 | Total Record : 357

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