Jurnal Pengolahan Hasil Perikanan Indonesia
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The Utilization of Seaweed Eucheuma cottonii in the Production of Antiseptic Soap
Get PDFThe aim of study was to formulate solid soap made from Eucheuma cottonii seaweed which has antiseptic properties. This study used a Complate Randomized Design (CRD) with one factor adding extractE. cottonii seaweed (0 ppm, 250 ppm, 500 ppm and 750 ppm). The steps included sample preparation, extraction, production of antiseptic soap, chemical physics test (moisture content, pH, free alkali, foam stability, and hardness) and antibacterial test. The results showed that the addition of E. cottonii seaweed extract had a significant effect on free alkali, foam stability, and soap hardness except the moisture contentand acidity (pH) of the soap. Moisture content of solid soap ranged 20.03-27.62%, pH 11.22-11.57, the free alkali value was 0.05-0.53%, foam stability was 42.77-74.42%, and hardness was in the range of 102.10-387.84%. Antibacterial activity test showed inhibitory diameter in E. cottonii extract soap ranged 11.08-17.15 mm, classified as a strong antibacterial activity (> 11 mm), while the antibacterial inhibitory diameter of E. cottonii extract was 0–12.26 mm. The higher the concentration of seaweed extract E. cottonii, the higher the inhibition zone (antibacterial activity) of soap produced. The best treatment of antiseptic soap produced was seaweed extract with concentration of 750 ppm which had the highest inhibition zone against S. aureus compared to other treatments
Aplication of Image Processing to Determine The Freshness of Tilapia Fish (Oreochromis niloticus)
Get PDFThe quality of fresh fish will decrease immediately after death. One of the indicators of fish quality is the changes of the gills color. The aim of this research was to determine the changes of red color in the gills of tilapia using image processing as an indicator of fish freshness. The research method used is the Explanatory Research where the independent variable (x) is tilapia which stored at room temperature for 12 hours. The dependent variable (y) was the intensity value of red. The quality of fish could be grouped into several categories, such as high quality, good quality, limit of acceptability and spoilt. The Observation was carried out with a time of 0 hours to 12 hours (4 hour interval). The results showed that storage time affected the deterioration of fresh quality. The high quality category has a red percentage value of 82.18%. Fresh category has a red percentage value of 67.10%. The limit of acceptability category has a value of 38.52% and the spoiltcategory has a red percentage value of 9.92%
Physicochemical Characteristics of Biscuits With the Fortification of Asian Swamp Eel Flour
Get PDFBiscuits are light food to resist starving. This study was aimed to determine the physicochemical characteristics of the biscuits fortified with Asian swamp eel flour at several different concentration levels. Research design of this study Completely Randomized Design (CRD) with fortification of Asian swamp eel flour were 10; 20; 30; 40 and 50%. Testing parameters were color (lightness, hue and chroma), chemical content, calcium and phosphorus content. Treatments of 10-50% Asian swamp eel flour fortification on biscuit had significant effect (p<0.05) on ash content, protein, carbohydrate, calcium, phosphorus, and color (lightness and hue), but did not have significant effect (p>0.05 ) on moisture content, fat and chroma value. Asian swamp eel biscuits have higher levels of protein, moisture, ash and lipid than indonesian national quality standards of biscuits. The best treatment was 30% Asian swamp eel flour fortification with the chemical composition: moisture content 5.58±0.40% (w/w), ash 2.56±0.19% (w/w), lipid 30.72±4.02% (w/w), protein 15.89±0.55% (w/w) and carbohydrates 46.92±2.04% (w/w) while calcium and phosphorus content 0.40±0.00% and 0.58±0.01%, respectively
Characterization of Tuna Jerky with the Addition of Seaweed (Eucheuma cottonii) Flour
Get PDFFish jerky has hard texture which could make the appearance became less attractive to consumers. The aim of this study was to characterize tuna jerky with the addition of seaweed flour E. cottonii in order to increase acceptability by consumers. Result shown that seaweed flour characterization was consisted dietary fiber 73.95±0.45%, viscosity 107.02±0.51 cPs, gel strength 435.03±4.99 g/cm2, carageenan 54.56±0.18%, heavy metal Hg was <0.002 ppm, Pb was <0.004 ppm and Cd was 0.063±0.001 ppm, water content 12.63±0.08% and yield 6.07±0.08%. Based on research result, the additional of 2.5% E. cottonii concentration flour resulting high quality jerky with appearance value was 7.60, flavour was 7.67, texture was 5.7 and taste was 7.63 from 1-9 scales. Result from paired comparison test against commercial jerky (beef) resulting positive value, that means the quality of tuna jerky had better quality compared to commercial jerky and well accepted by panelist. Proximate analysis of tuna jerky shown that protein content 30.24±0.1%, water 11.32±0.02%, lipid 3.03±0.00% and ash 5.69±0.06%. Texture analysis results shown hardness 827.50±15.67, adhesiveness 0.09±0.02 and fracture 10.95±2.24
Karakteristik mikroselulosa mikrokristalin dari rumput laut merah Eucheuma cottonii
No full textMicrocrystalline Cellulose (MCC) is a modified of cellulose widely used as an additive in food and pharmaceutical industry. MCC is used in the pharmaceutical field as an excipient compound in the manufacture of tablets. Raw materials for MCC are of high cellulose content, such as Eucheuma cottonii seaweed. This study was aimed to determine the characteristics of MCC from seaweed E. cottonii. The MCC was obtained by hydrolyzing of α-cellulose from seaweed E. cottonii using HCl solution with three different concentrations: 2, 2.5 and 3 N. The chemical compositions (water, ash, protein, lipid, and carbohydrate) of red seaweed flour were determined. The moisture, ash, sensory, yield, and pH of the MCC were also analysed. The results showed that E. cottonii seaweed flour had moisture, protein, fat, ash, and carbohydrate content 3.88%, 0.85%, 2.4%, 3.44%, and 89.4% respectively. HCl concentrations had a significant effect on the moisture and ash content. The MCC had a yield of 35.8-38.00%, pH 5.73-6.82, moisture content 4.09.6, ash 0.94-4.90%. The characteristics of the MCC was in accordance with the standards of the British Pharmacopeia except the ash content
Pemanfaatan DNA barcoding untuk ketertelusuran label berbagai produk olahan ikan berbasis surimi komersial
Get PDFSurimi-based processed products are prone to mislabeling using raw materials that are not in accordance with food safety requirements. There were cases reporting use of toxic fish tissue in commercial seafood products. This study was aimed to identify and determine the raw materials used in various processed surimi products using cytochrome oxidase I (COI) gene marker. The experiment consisted of DNA isolation, DNA amplification using several target primers namely full-length barcodes, mini-barcodes, as well as specific species primers against poisonous puffer fish Lagocephalus lunaris and genetic analysis. The results of bioinformatics analysis revealed that S1 samples were Coryphaena hippurus or mahi-mahi fish, S2 and S3 samples were Nemipterus bathybius or curated fish and CS samples were Evynnis cardinalis or kuro fish. Detection of samples with species specific primers of puffer fish Lagocephalus lunaris with annealing temperatures of 54°C, 57°C, and 60°C showed no DNA bands in the six samples analyzed
The Effect of Blanching Time on Antioxidant Activity and Sensory Characteristic of Brown Seaweed Sargassum sp. Tea
Get PDFBrown seaweed Sargassum sp. is known to contain bioactive compounds needed for human. Seaweedcan be brewed into antioxidant drinks. The purpose of this study was to determine antioxidant activity andsensory properties of Sargassum sp. with variations in the duration of blanching 1, 3, and 5 minutes. Thetea was analysed for their water content, total phenols, antioxidant activity and sensory tests. The highestantioxidant activity was obtained in blanching treatment for 5 minutes with phenol content of 2.22 mg GAE/g. However, the hedonic test suggested 3 minutes blanching treatment was the best treatment to obtain theseaweed tea
Characteristics of Functional Salt from Green Seaweed Ulva lactuca
Get PDFUlva lactuca is a potential source of functional salt. The production of the functional salt is limited by the fishy smell of the product. The purpose of this research was to determine the concentration of activated charcoal that can reduce the fishy odor of seaweed salt. The functional salt was extracted using activated charcoal at 0.5; 0.75; 1; 1.25 and 1.5%. The sensory and functional properties of the salt including mineral content, Na: K ratio, NaCl levels, total phenol and antioxidant activity were characterized. The sensory tests showed that 1.5% activated charcoal improved salt\u27s consumer acceptance. The selected functional salt contained Na 91.00±1.28 g/kg; K 44.88±0.06 g/kg with a Na: K ratio of 2.03±0.03. This salt also contained NaCl 9.08±0.42%; total phenols of 13.72±0.19 mg GAE/g extract and antioxidant activity expressed by IC50 1681.27±3.80 mg / L
Feasibility Study of The Small and Medium-Sized Enterprises Fisheries Processing Unit and Their Mackerel Tuna Pindang Product in Banyuwangi
Get PDFDevelopment of fisheries commodities to fulfill people needs could be achieved by creating of small and medium-sized enterprises (SMEs). This study was aimed to evaluate the feasibility of processing units and quality of mackerel tuna pindang product in a SME. The feasibility of the processing units was investigated through a survey and interview, while the product quality was determined based on the chemical composition, histamine and microbial test. The analyses showed that many deviations including 19 minor, 8 major, 28 serious and 22 critical deviations were occurred in the SME. These deviations suggest that the SME did not meet the regulation required by the government and was included in the Group D. Furthermore, the histamine and microbial levels indicate the product has been severely contaminated
The Quality Changes of Milkfish (Chanos chanos Forsk.) as Influenced by Different Heat Processing Methods
Get PDFMilkfish (Chanos chanos Forsk.) contain high protein, particularly lysine as an essential amino acid and Polyunsaturated Fatty Acid (PUFA). High temperature processing namely frying, steaming, and high pressure steaming will reduce the quality of protein and lipid. The aimed of this study was to determine the quality of protein and lipid of milkfish in different processing methods. Samples processed in the form of fried,steamed, and steamed in high pressure milkfish and fresh milkfish as control. Furthermore, the parameters are moisture content, dissolved protein, lysine, free fatty acids, functional groups, and microstructure. The results demonstrated different treatments significantly affected the decreased in the protein and PUFA quality of milkfish. Frying process of milkfish led to significant changes in moisture content, dissolved protein,lysine and the free fatty acids. Fried milkfish had lowest moisture content, dissolved protein, lysine, and free fatty acid were as followed 34.95%, of 0.70%, 1.65% and 6.71%, respectively. The frying process decreased the quality of milkfish protein however did not produce trans fatty acids based on functional group analysis using Fourier Transform Infra-Red (FTIR). The different heating process resulted in the changed of milkfish muscle’s structure. The structure of fresh and steamed milkfish muscle was more compact than milkfish steamed in high pressure product