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All Journal Squalen Bulletin of Marine and Fisheries Postharvest and Biotechnology Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan
Bagus Sediadi Bandol Utomo, Bagus Sediadi Bandol
Balai Besar Penelitian dan Pengembangan Pengolahan Produk dan Bioteknologi Kelautan dan Perikanan. Jalan KS. Tubun Petamburan IV, Jakarta Pusat 10260 Telepon (021) 53650157/Faks (021) 53650158
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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The use of microalgae as the raw material of bioethanol Assadad, Luthfi; Utomo, Bagus Sediadi Bandol; Sari, Rodiah Nurbaya
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 5, No 2 (2010): August 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.v5i2.47

Abstract

Biofuel is one of alternative fossil fuel, in which the raw materials come from biological resources.One of the raw materials for biofuel production is microalgae. Microalgae grows rapidly, does notcompete with food for humans, and needs small areas to cultivate. Utilization of microalgae forbiofuel research nowadays is focusing on biodiesel production, but actually microalgae can beused to produce other biofuels such as bioethanol. The carbohydrate content of the microalgaecan be converted into glucose and fermented into alcohol. Carbohydrate content of the microalgaeis about 5.0–67.9%, which could produce bioethanol up to 38%. A harmony between bioethanoland biodiesel production from microalgae is needed for the optimum utilization of microalgae.Bioethanol production from microalgae can be done using de-oiled microalgae.
MUTU SEMIREFINED CARRAGEENAN (SRC) YANG DIPROSES MENGGUNAKAN AIR LIMBAH PENGOLAHAN SRC YANG DIDAUR ULANG Basmal, Jamal; Utomo, Bagus Sediadi Bandol
Jurnal Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 4, No 1 (2009): Juni 2009
Publisher : Balai Besar Riset Pengolahan Produk dan Bioteknologi Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jpbkp.v4i1.430

Abstract

Telah dilakukan penelitian mutu semi refined carrageenan (SRC) yang diproses menggunakan air limbah pengolahan SRC Yang didaur ulang. Air limbah pengolahan SRC terlebih dahulu dinetralkan, dikoagulasi, diflokulasi, dan disaring menggunakan zeolit dan arang aktif. Air yang sudah diolah tersebut selanjutnya digunakan untuk proses pengolahan SRC berikutnya. Untuk melihat optimalisasi penggunaan air hasil daur ulang terhadap penurunan mutu fisiko kimia SRC yang dihasilkan, dilakukan 5 kali daur ulang berturut-turut. Dari penelitian ini disimpulkan bahwa limbah cair pengolahan SRC dapat digunakan kambali untuk pengolahan SRC berikutnya. Berdasarkan parameter kekuatan gel karaginan yang dihasilkan, ternyata terjadi peningkatan kekuatan gel dari 806 g/cm² menjadi 1147 g/cm² untuk SRC yang diolah/dicuci dengan air limbah yang telah mengalami 4 kali proses daur ulang. Pada tahap ini SRC mempunyai kadar abu 16,0%, abu tak larut asam 0,04%, kadar sulfat 3,9%, dan kadar air 12,3%.
Physicochemical Properties and Microstructure of Mixed-species Surimi Made from Decapterus sp. and Priacanthus sp. Sihono, Sihono; Purnomo, Agus Heri; Wibowo, Singgih; Subaryono, Subaryono; Suryaningrum, Theresia Dwi; Utomo, Bagus Sediadi Bandol; Dewi, Fera Roswita
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 19, No 1 (2024): May 2024
Publisher : :Agency for Marine and Fisheries Research and Human Resources, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.861

Abstract

The surimi industry plays a substantial role in bolstering Indonesia’s fishing sector. The collapse of the majority of surimi companies can be attributed to the                   government limitation on trawling, which served as the primary source of demersal fish utilized in surimi processing. This restriction resulted in a significant shortage of raw material for industry. Therefore, it is imperative to explore alternate fish species that can serve as viable raw materials for the production of surimi.  Alternative fish species are needed as raw materials for surimi. The objective of this work was to investigate the physicochemical characteristics and microstructure of surimi produced from two distinct Indonesian fish species: Decapterus sp., a pelagic species, and Priacanthus sp., a demersal species. Five ratios of Decapterus sp and Priacanthus sp; 1:0 (F1: control 1),  3:1 (F2), 1:1 (F3), 1:3 (F4), and 0:1 (F5: control 2) were tested. The proximate composition showed that the addition of Decapterus sp. to the formula increased the protein and fat content of mixed surimi. The formula F4 showed the highest value for almost all textural profile parameters; there were springiness, cohesiveness, gumminess, chewiness, and resilience. The same result also presented in the gel strength, F4 also has the highest value. The Water Holding Capacity value was low, and it showed no difference between all formulas. The whiteness value was in the range of 66-68, and it showed no difference between all formulas. Protein patterns showed no myosin heavy chain in all formulas. Microstructure analysis showed that only F5 (control 2) was compact and denser, but the other formulas (F1, F2, F3, and F4) showed a large number of loose and porous structures. In the microbial analysis, all formulas showed the Total Plate Count value ( 6 x 105 cfu/g) was under the maximum acceptable value (107 cfu/g). The findings of the study indicated that the mixed-surimi, consisting of Decapterus sp and Priacanthus sp at a ratio of 1:3, exhibited the highest level of gel strength. In conclusion, Decapterus sp has the potential to serve as a viable raw material when combined with Priacanthus sp.
PHYSICAL PROPERTIES OF CHINESE HERRING (Hilsentoli sp.) LEATHER TANNED WITH CHROME AND RETAINED WITH SYNTHETIC AGENT Suryaningrum, Th. Dwi; Nuridha, Ahmad; Sinurat, Ellya; Basmal, Jamal; Ariyani, Farida; Utomo, Bagus Sediadi Bandol; Kusumawati, Rinta; Prodiana, Natalia; Supriyanto, Agus; Mardiyana, Indri; Ikasari, Diah
Squalen, Buletin Pascapanen dan Bioteknologi Kelautan dan Perikanan Vol 20, No 2 (2025): August 2025
Publisher : :Agency for Marine and Fisheries Research and Human Resources, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/squalen.950

Abstract

When the scales of Chinese herring (Hilsentoli sp.), like those of snakes or monitorlizards, are tanned, they exhibit a unique scaly texture with an attractive natural pattern. This study aimed to evaluate the physical properties of Chinese herring skin tanned with chrome and retained with a synthetic agent. The treatments consisted of a combination of chrome and tanning agents at various concentrations, ie. Chrome (C) 6% and tanning agent (S) 0% (C6S0), Chrome 8% and tanning agent 0% (C8S0), Chrome 10% and tanning agent 0% (C10S0), Chrome 6% and tanning agent 4% (C6S4), Chrome 8% and tanning agent 4% (C8S4), Chrome 10% and tanning agent 4% (C10S4), Chrome 6% and S 6% (C6S6), Chrome 8% and S 6% (C8S6), and Chrome 10% and tanning agent 6% (C10S6). Observations were conducted based on descriptive sensory, physical, and chemical tests, identification of functional groups of the leather, and morphology analysis of the skin leather. The results showed that a combination of chrome and synthetic tanning produced leather with a denser and fuller texture than leather tanned with the chrome tanning agent. C10S6 treatment produced the best physical properties of tanned skin of Chinese herring in terms of its high tensile strength, tear strength, stitch strength, and shrinkage temperature, along with the lowest elongation. The values are well within the Indonesian standard of SNI 0253:2009 for leather with fancy motifs on finished leather goods. The analysis of the cross-section of skin at various treatments using Scanning Electron Microscope (SEM) analysis indicates that retanning with synthetic tanning agents strengthened the collagen matrix, producing denser, more compact structures. This density is caused by the presence of collagen compound bonds and synthetic tanning materials, such as phenol and formaldehyde, which were detected as 2,4-dimethyl phenol in the Raman spectra shift at 208, 35 – 2445.87 cm -1 .
Co-Authors Agus Heri Purnomo, Agus Heri Agus Supriyanto Assadad, Luthfi Dewi, Fera Roswita Farida Ariyani Ikasari, Diah Jamal Basmal, Jamal Mardiyana, Indri Nuridha, Ahmad Prodiana, Natalia Rinta Kusumawati, Rinta Rodiah Nurbaya Sari, Rodiah Nurbaya Sihono Sihono Singgih Wibowo, Singgih Sinurat, Ellya Subaryono Subaryono, Subaryono Suryaningrum, Theresia Dwi Th. Dwi Suryaningrum