scholarly journals Karakteristik Biopelumas Berbasis Minyak Patin Siam (Pangasius hypophthalmus)

2020 ◽  
Vol 15 (2) ◽  
pp. 159
Author(s):  
Rodiah Nurbaya Sari ◽  
Ema Hastarini ◽  
Athanatius Henang Wicaksono Widyajatmiko ◽  
Armansyah Halomoan Tambunan

Proses pengolahan ikan patin di Indonesia memiliki hasil samping hingga 67% dari total bobotnya dan berpotensi menimbulkan polusi. Pemanfaatan hasil samping sebagai biopelumas yang ramah lingkungan merupakan salah satu solusi dalam penanggulangan hasil samping menjadi produk yang bernilai ekonomis. Namun, pelumas yang dihasilkan harus dapat memenuhi standar nasional Indonesia (SNI). Riset ini bertujuan untuk melakukan karakterisasi biopelumas yang dibuat dari hasil samping produksi ikan patin Siam (Pangasius hypophthalmus), berupa bagian jeroan atau isi perut, dan membandingkannya dengan SNI 7069.9:2016. Isi perut patin diekstrak menjadi minyak kasar dengan metode wet rendering. Selanjutnya, minyak kasar diubah menjadi biopelumas melalui tahapan hidrolisis, polimerisasi, dan poliesterifikasi. Bahan baku minyak kasar diuji komposisi asam lemak, bilangan asam lemak bebas, dan bilangan penyabunan. Sementara itu, karakterisasi biopelumas dilakukan dengan variabel densitas, viskositas kinematik pada suhu 40 dan 100°C, warna, indeks viskositas, flashpoint, pour point, dan uji korosi. Hasil penelitian memperlihatkan bahwa suhu poliesterifikasi 135°C akan menghasilkan biopelumas terbaik. Biopelumas ini memiliki densitas 0,903 g/cm3; viskositas 40°C sebesar 39,76 cSt; viskositas 100°C sebesar 7,94 cSt; indeks viskositas 176; dan sifat korosi yang rendah (1A). Indeks viskositas dan korosi bilah tembaga menunjukkan bahwa minyak patin adalah bahan baku biopelumas yang potensial. Namun, titik nyala dari biopelumas masih rendah (127°C) dan titik tuangnya juga tinggi (27°C). Modifikasi proses lebih lanjut dapat dilakukan untuk menaikkan titik nyala serta menurunkan titik tuang, sehingga produk ini dapat memenuhi persyaratan sebagai biopelumas.ABSTRACTThe pangasius processing in Indonesia has a by-products waste, that can reach up to 67% of its total weight, and may cause pollution. An environmentally friendly lubricant (biolubricant) is a potential solution that transforms the by-products waste into an economically value product. However, the proceed biolubricant has to meet the Indonesian National Standard (abbreviated SNI). The purpose of this study were to characterize the biolubricant from pangasius (Pangasius hypophthalmus) by-products, which is the viscera part, and to compare the product with the Indonesian lubricant standard SNI 7069.9: 2016 reference. The crude fish oil was extracted from the viscera using the wet rendering method. Furthermore, the crude fish oil was converted into biolubricant through the stages of hydrolysis, polymerization, and polyesterification. The raw material of pangasius by-products was characterized by fatty acid profiles, free fatty acid numbers, and saponification numbers. Meanwhile, the biolubricant product was characterized by density, kinematic viscosity at temperatures of 40 and 100°C, color, viscosity index, flashpoint, pour point, and hazardous corrosion test. The results showed that the best biolubricants were those through the polyesterification temperature process of 135°C. This biolubricant has a density of 0.903 g/cm3; a viscosity at 40°C of 39.76 cSt; a viscosity at 100°C of 7.94 cSt; a viscosity index of 176; and low corrosion level (1A). The viscosity index and corrosion of copper blades were adequate for biolubricant standards. However, the biolubricant flashpoint was relatively low (127°C) and the pour point was relatively high (27°C). A further modification is needed to adjust the flash and pour points so that the biolubricant able to fullfil the national lubricant standard.

2018 ◽  
Vol 20 (3) ◽  
pp. 456
Author(s):  
Dini Wulan Dari ◽  
Made Astawan ◽  
Sugeng Heri Suseno

Fish oil production in Indonesia is not only sourced from fish raw materials, but also could be<br />processed by products of canning and fish siege through purification process. The result of purification<br />with one process was not satisfy yet for the parameter oxidation quality fulfillment aspect. Therefore, fish<br />oil by products of fish encircling need to be purified more intensively, such as stratified purification one of<br />them through the process of stratified purification. The aim of this study was to improve the quality of fish<br />oil by-product through stratified purification. The multilevel purification of once purification (P1), twice<br />purification (P2), and three times purification (P3) gives varying results on physical properties, oxidation<br />parameters, and fatty acid profiles. The color of the brightest fish oil was found in sample P2, the lowest<br />density was found in sample P3 (0.63 g /cm3), the highest yield was in P1 sample (44.42%), FFA was lowest<br />in P3 sample (0.37%), The lowest PV in the P1 sample (25.59 meq / kg), the lowest TOTOX in the P1 sample<br />(48.11 meq / kg), and the highest PUFA content in the fatty acid composition found in sample P2 (37.02%).<br />Purified sardine oil extracted from by products of fish stamping by three-stage purification, FFA parameters<br />are able to meet the criteria of IFOS 2014 standards, while for PV, AnV, and TOTOX parameters are able to<br />meet IFOMA standards.<br /><br />


2016 ◽  
Vol 19 (3) ◽  
pp. 196 ◽  
Author(s):  
Kamini Kamini ◽  
Pipih Suptijah ◽  
Joko Santoso ◽  
Sugeng Heri Suseno

The catfish viscera fat, is cathfish processing by-products, has potential to be used as a source of<br />raw material for production of fish oil. This study aimed to analyze the value of proximate, heavy metal<br />content and fatty acid profile of catfish viscera fat (Pangasius hypopthalmus) and characterized fish oil<br />extracted by dry rendering in various temperature and time than compared it to fish oil extracted by stove<br />heating to obtain the best treatment. Proximate, heavy metal residue, and the fatty acid profile analysis<br />were conducted for characterizing catfish viscera fat. Fish oil extraction was conducted by dry rendering<br />in various temperatures of 50, 60, 70, 80 °C for 1, 2, and 3 hours. Fish oil quality was determined by the<br />chemical characteristics i.e. PV, FFA, anisidin and TOTOX. The results of the study showed that fat content<br />of catfish fat viscera was 88.19 %, the heavy metals content was below SNI standart to be consumed, and fatty<br />acid profile composition was SFA&gt;MUFA&gt;PUFA. The highest fatty acid content was oleic acid. The best fish<br />oil quality was resulted on temperature extraction of 50°C for 2 hours with yield value, PV, FFA, anisidin,<br />and TOTOX were 45.17 %, 2.77 meq/kg, 0.83 %, 2.86 meq/kg, 8.39 meq/kg respectively. This result was not<br />significantly different with fish oil extracted by the stove heating expect for yield and PV were 80.11% and<br />6.52 meq/kg, respectively.<br /><br />


Foods ◽  
2021 ◽  
Vol 10 (8) ◽  
pp. 1811
Author(s):  
Ella Aitta ◽  
Alexis Marsol-Vall ◽  
Annelie Damerau ◽  
Baoru Yang

Baltic herring (Clupea harengus membras) is one of the most abundant commercially caught fish species from the Baltic Sea. Despite the high content of fat and omega-3 fatty acids, the consumption of Baltic herring has decreased dramatically over the last four decades, mostly due to the small sizes and difficulty in processing. At the same time there is an increasing global demand for fish and fish oil rich in omega-3 fatty acids. This study aimed to investigate enzyme-assisted oil extraction as an environmentally friendly process for valorizing the underutilized fish species and by-products to high quality fish oil for human consumption. Three different commercially available proteolytic enzymes (Alcalase®, Neutrase® and Protamex®) and two treatment times (35 and 70 min) were investigated in the extraction of fish oil from whole fish and by-products from filleting of Baltic herring. The oil quality and stability were studied with peroxide- and p-anisidine value analyses, fatty acid analysis with GC-FID, and volatile compounds with HS-SPME-GC-MS. Overall, longer extraction times led to better oil yields but also increased oxidation of the oil. For whole fish, the highest oil yields were from the 70-min extractions with Neutrase and Protamex. Protamex extraction with 35 min resulted in the best fatty acid composition with the highest content of eicosapentaenoic acid (EPA; 20:5n-3) and docosahexaenoic acid (DHA; 22:6n-3) but also increased oxidation compared to treatment with other enzymes. For by-products, the highest oil yield was obtained from the 70-min extraction with Protamex without significant differences in EPA and DHA contents among the oils extracted with different enzymes. Oxidation was lowest in the oil produced with 35-min treatment using Neutrase and Protamex. This study showed the potential of using proteolytic enzymes in the extraction of crude oil from Baltic herring and its by-products. However, further research is needed to optimize enzymatic processing of Baltic herring and its by-products to improve yield and quality of crude oil.


2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 319-319
Author(s):  
Carrie James ◽  
Sandra L Rodriguez-Zas ◽  
Maria R C de Godoy

Abstract There is evidence that algae can be a sustainable alternative of omega-3 polyunsaturated fatty acids (w-3 PUFA; DHA and EPA) in the diets of felines, but more information is needed to determine bioavailability of algal w-3 PUFAs in felines. Therefore, the objective of this study was to determine the effects of dietary supplementation of algae DHA on plasma and red blood cell (RBC) membrane fatty acid profiles and fecal microbiota of adult cats. A complete randomized design was utilized with thirty female and male adult cats (mean age: 1.8 ± 0.03 yr, mean BW: 4.5 ± 0.8 kg) which were fed an assigned diet for 90 d. Three diets were formulated with poultry fat alone or inclusion of 2% fish oil or 2% algae DHA meal. Blood samples were collected after fasting on 0, 30, 60 and 90 d to be analyzed for plasma and red blood cell fatty acid profiles. A fresh fecal sample was collected within 15 min of defecation from each cat to be analyzed for fecal microbiota. Illumina 16S rRNA sequencing from V4 region was completed using MiSeq and analyzed using QIIME 2. Plasma and RBC fatty acid concentrations at baseline were similar among all cats and treatment groups. However, dietary treatment had a significant effect on the concentrations of several fatty acids in plasma and RBC over time. Plasma and RBC concentrations of DHA were greater (P &lt; 0.05) for cats fed the algal DHA diet compared to the control and fish oil diets. Conversely, plasma and RBC concentrations of EPA did not differ among treatments when analyzed as a change from baseline. Beta- and alpha-diversity did not differ among treatments, indicating that 2% fish oil or algal-DHA meal does alter fecal microbiota of cats in contrast with cats fed a poultry fat-based diet.


2011 ◽  
Vol 94 (3) ◽  
pp. 749-758 ◽  
Author(s):  
H. D. Le ◽  
V. E. de Meijer ◽  
E. M. Robinson ◽  
D. Zurakowski ◽  
A. K. Potemkin ◽  
...  

2015 ◽  
Vol 55 (4) ◽  
pp. 1741-1753 ◽  
Author(s):  
Clara Sánchez-Blanco ◽  
Encarnación Amusquivar ◽  
Kenia Bispo ◽  
Emilio Herrera

2020 ◽  
pp. 1-16
Author(s):  
S.J.J. Schreven ◽  
S. Yener ◽  
H.J.F. van Valenberg ◽  
M. Dicke ◽  
J.J.A. van Loon

The oilseed crops Crambe abyssinica and Camelina sativa produce oils rich in erucic acid and n-3 polyunsaturated fatty acids (PUFA), respectively. After pressing the oil, a seed cake remains as a protein-rich by-product. Edible insects may convert this seed press cake and the defatted seed meal produced from it into insect biomass suitable for animal feed. Black soldier fly larvae (BSF, Hermetia illucens) can grow on a wide range of organic waste types, but may be hindered by excess protein or the plant toxins characteristic for these two oilseed crops, i.e. glucosinolates and their breakdown products. We tested the effects of 25, 50 and 100% oilseed by-product inclusion in the diet on survival, development, biomass production and fatty acid composition of BSF larvae. Larval performance on diets with up to 50% camelina by-product or 25% crambe by-product was similar to performance on control diet (chicken feed), and decreased with higher inclusion percentages. Larval fatty acid profiles differed significantly among diets, with larvae fed press cake more distinct from control than larvae fed seed meal. Larvae fed camelina press cake had more α-linolenic acid, whereas larvae fed crambe contained most oleic acid. The n-6:n-3 PUFA ratio decreased with increasing proportion of by-product, especially on camelina diets. Lauric acid content was highest in larvae fed 100% camelina meal or 50% crambe meal. These results indicate that BSF larvae can be successfully grown on diets with camelina or crambe oilseed by-products, and that the resulting larval n-6:n-3 PUFA ratio is favourable for animal feed. However, the fate of glucosinolates and their derivatives remains to be determined, to guarantee chemical safety of camelina- or crambe-fed BSF larvae for animal feed.


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