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INDONESIA
Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology
ISSN : 20895690     EISSN : 24069272     DOI : -
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 8 Documents
Search results for , issue "Vol 12, No 2 (2017): August 2017" : 8 Documents clear
BIOETHANOL PRODUCTION FROM SEAWEED PROCESSING WASTE BY SIMULTANEOUS SACCHARIFICATION AND FERMENTATION (SSF) Andi Hakim; Ekowati Chasanah; Uju Uju; Joko Santoso
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.v12i2.281

Abstract

Seaweed processing waste has been used for bioethanol production through simultaneous saccharification and fermentation (SSF). SSF is commonly used for bioethanol production to shorten the process and to increase the yield of ethanol produced by Trichoderma reesei and Saccharomyces cerevisiae. The aim of this research was to obtain the best concentration of T. reesei and S. cerevisiae to produce bioethanol by SSF. The concentration of T. reesei and S. cerevisiae used was 0 (control), 5, 10, 15 and 20% (v/v). The SSF process was carried out by using shaking incubator at 35 °C and rotation of 150 rpm for 3 days. The untreated and hot water treated seaweed processing waste used in this study have moisture content values of 12.94±0.08% and 15.38±0.19%, ash content values of 16.72±0.08% and 18.39±0.19%, lignin content values of 15.38±0.11% and 12.74±0.38%, and cellulose content values of 26.92±0.57% and 34.57±0.81%, respectively. The result of SSF process of seaweed processing waste showed that different concentrations of T. reesei and S. cerevisiae (control, 5, 10, 15 and 20%) yielded significant effect (p0.05) on the total reducing sugars and ethanol produced. The Duncan Multiple Range Test (DMRT) showed that the treatment 10% of T. reesei and S. cerevisiae concentration in the seaweed processing waste treated with hot water was the best treatment producing highest yield of ethanol.
Front 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.v12i2.308

Abstract

Preface 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.v12i2.309

Abstract

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.
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

Evaluation of Non-Saccharomyces Cerevisiae Strains Isolated from Sea Water Against Inhibitory Compounds for Ethanol Production Thontowi, Ahmad; Putra, Filemon Jalu Nusantara; Yopi, Yopi
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.v12i2.284

Abstract

An important parameter in industrial bioethanol fermentation is the resistance of yeast to osmotic pressure and inhibitor compounds. Aureobasidium pullulans LBF-3-0074 and Schwanniomyces etchellsii LBF-3-0034 are reported capable to produce ethanol. LBF-3-0034 and LBF-3-0074 are yeast strains isolated from Bali and Lombok sea water. This study aimed to evaluate characteristics of both LBF-3-0034 and LBF-3-0074 strains under the effects of glucose and inhibitor compounds. Both strains were allowed to consume glucose up to 120 mM. Then, these strains were grown with the present of several inhibitors, i.e. 5-hydroxymethyl-2-furaldehyde (5-HMF), furfural, acetic acid, formic acid, and levulinic acid. Results showed that the two yeast strains studied could grow and ferment the sugars under both osmotic and inhibitor stress conditions. As conclusion, Schwanniomyces etchellsii LBF-3-0034 and Aureobasidium pullulans LBF-3-0074 are potential for direct fermentation of lignocellulosic hydrolysate to ethanol.
Effect of Hydrolyzed Fucoidan from The Brown Seaweed Sargassum Binderi Sonder Towards Human Breast Cancer T47d Cell Lines Sinurat, Ellya; Saepudin, Endang; Qosthalani, Fildzah Alfita
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 | Full PDF (440.127 KB) | DOI: 10.15578/squalen.v12i2.275

Abstract

Fucoidan, a sulfated heteropolysaccharide, consists of L-fucose and sulfate ester groups as the main component. Over the past three decades, fucoidan structures and bioactivities have been widely studied. The chemical components (fucose, galactose, small monosaccharides and also the sulfate) and the molecular weights of fucoidans from different brown seaweed species produce different characteristics and structures of fucoidan. The activity of fucoidan against cancer cells has been reported to be affected strongly by their sulfate content and molecular weight. Low-molecular-weight fucoidans tend to have higher solubility and easily penetrate into cancer cells. The objective of this study was to investigate the effect of hydrolyzed of fucoidan on its anti cancer activity againts the breast cancer T47D cells. In this study, the fucoidan from the brown seaweed Sargassum binderi Sonder was extracted using 0.1 N HCl and was depolymerized by acid hydrolysis at various times and concentrations. Result showed that fucoidan hydrolyzed with 1 M trifluoroacetic acid (TFA) for 1.5 hours reached the maximum depolymerization process and resulted in the decrement of molecular weight from 785.12 kDa to 5.79 kDa as well as sulfate content from 18.63% to 8.69%. The IC50 values of  fucoidan and low molecular weight fucoidan against the breast cancer T47D cells were 60.03 mg/mL and 182.34 mg/ respectively. This result indicated that the sulfate content of fucoidan probably affected its anticancer bioactivities. 
Human Health Risk Assessment of Heavy Metals Bioaccumulation In Fish and Mussels from Jakarta Bay Ajeng Kurniasari Putri; Giri Rohmad Barokah; Nuri Andarwulan
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 | Full PDF (481.326 KB) | DOI: 10.15578/squalen.v12i2.286

Abstract

Aquatic environment of Jakarta Bay have already been highlighted due to its heavy metals contamination which may lead into food safety concern of fisheries products derived from this region. This research aimed to investigate bioaccumulation level of heavy metals (Pb, Cd, and As) in fish and mussels from Jakarta Bay, as a human risk assessment of seafood consumption. Samples of mussels and fish were taken from Penjaringan, Tarumanegara, Cilincing, and Tanjung Pasir district. Bioaccumulation of heavy metals was analyzed by Inductively Coupled Plasma -Mass Spectrometry technique. Results of the study revealed that metals bioaccumulation in fisheries products were varied, with As (Arsenic) as the highest metal contaminant (0.68 mg/kg, dry weight). Furthermore, estimated daily intake (EDI), target hazard quotient (THQ), total target hazard quotient (TTHQ), and safety limits prescribed by various agencies, showed that consumption of fisheries products from Jakarta Bay considered as relatively safe for human health in total of food ingestion rate of fish 57.34 g/day. These results are expected to serve as a baseline to construct preventive and palliative policies for food safety of fisheries products from Jakarta Bay.

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