scholarly journals Chemical Composition and Fatty Acids of Glodok Fish by High Thermal Processing

2014 ◽  
Vol 17 (2) ◽  
Author(s):  
Sri Purwaningsih ◽  
Ella Salamah ◽  
Reza Dewantoro

Glodok is an economically underrated fish with a high nutrient content. The research aims to study the changes on chemical composition, fatty acids, omega-6 and omega-3 ratio in glodok muscle after processing with different methods of boiling, steaming, and boiling with addition of salt (3%). The results showed that the treatment (boiling, steaming, and boiling with addition of salt) gives a significant effect (α=0.05) in water content, ash, lipid content, nervonat acid, linoleic acid, arachidonic acid, EPA, and DHA. The best processing method was steaming. The ratio of omega-3 and omega-6 in fresh glodok fish was 2,1:1, which is higher than WHO recommendation of 0,6:1,7.<br />Keywords: chemical composition, fatty acid, glodok fish, processing

2019 ◽  
Vol 20 (2) ◽  
pp. 120-131
Author(s):  
Settings Anang Suhardianto ◽  
Ariyanti Hartari

This study aims to determine the effect of stocking density on the nutrient content of catfish that is maintained with biofloc technology. Nutrients observed: 1) water content, 2) protein, 3) carbohydrates, 4) total fat, 5) saturated fatty acids / SFA, 6) monounsaturated fatty acids/ MUFA, 7) plural unsaturated fatty acids / PUFA , 8) omega-3, 9) omega-6, and 10) omega 9. Statistical tests on the 10 variables showed that stocking density did not have a significant effect on the 10 variables at a 5% confidence interval. Stocking density of treatment is 1000 heads/pond (T1), 2000 heads/pond (T2), 3000 heads/pond (T3), with a pond size of 2.0 m x height 1.0 m. Research results: 1. The average water content is 69.40–71.47% and the highest T3. 2. The protein content is 14.70-15.90%, the highest T2. 3. Carbohydrate content of 5.16-5.50%, the highest T2. 4. The average total fat content of 6.73-7.78%, the highest T1. 5. SFA content is around 43%, PUFA around 23%, and MUFA around 32%. 6. The highest omega-3 content is T3, then T1, and T2. Omega-6 and 9 sequence contents are T1, T2, and T3. It was concluded, the treatment of biofloc catfish stocking densities at a 5% confidence interval did not have a significant effect on the specified nutrient content. Penelitian ini bertujuan untuk menentukan pengaruh padat tebar terhadap kandungan zat gizi ikan lele yang dipelihara dengan teknologi bioflok. Zat gizi yang diamati: 1) kandungan air, 2) protein, 3) karbohidrat, 4) lemak total, 5) asam lemak jenuh/SFA, 6) asam lemak tak jenuh tunggal/MUFA, 7) asam lemak tak jenuh jamak/PUFA, 8) omega-3, 9) omega 6, dan 10) omega 9. Uji statistik terhadap ke-10 variabel menunjukkan padat tebar tidak memberikan pengaruh nyata terhadap ke-10 variabel pada selang kepercayaan 5%.  Padat tebar perlakuan adalah 1000 ekor/kolam (T1),  2000 ekor/kolam (T2), 3000 ekor/kolam (T3), dengan ukuran kolam diameter 2,0 m x tinggi 1,0 m. Hasil penelitian: 1. Rata-rata kandungan air 69,40–71,47% dan T3 tertinggi. 2. Kandungan protein 14,70–15,90%, T2 tertinggi. 3. Kandungan karbohidrat 5,16–5,50%, T2 tertinggi. 4. Rata-rata kandungan lemak total 6,73–7,98%, T1 tertinggi. 5. Kandungan SFA sekitar 43%, PUFA sekitar 23%, dan MUFA sekitar 32%. 6. Kandungan omega-3 tertinggi T3, kemudian T1, dan T2. Omega-6 dan 9 urutan kandungannya T1, T2, dan T3.  Disimpulkan, perlakuan padat tebar lele bioflok pada selang kepercayaan 5% tidak memberikan pengaruh yang nyata terhadap kandungan zat gizi yang ditentukan.


2015 ◽  
Vol 18 (1) ◽  
Author(s):  
Wahyu Nur Widiyanto ◽  
Ratna Ibrahim ◽  
Apri Dwi Anggo

The application of high temperature steam jacket system in the industrial fish liver processing makes the product is of poor quality. The quality data of Rays liver oil processed by simple jacket steam with temperature above 80°C are currently not available. This research aimed to determine temperature of simple steam jacket processing method to the quality of White Spotted Whipray Rays liver oil. The differences of processing temperatures affected significantly the value of free fatty acid, peroxide, and yield; but did not affected significantly on the water content and the organoleptic value specification products except on turbidity. The most optimum processing temperature of Rays liver oil was at 60 °C for 20 minutes with the content of free fatty acids 0.68%, the peroxide 0,57 meq/kg, and the moisture of the oil 0%. The product had yield 37.88%, the sensory value 7.97 ≤ μ ≤ 8.35 and omega-3: 23.44%, as well as omega-6: 10.19%. Keywords: Fish liver oil, simple steam jacket, temperature


2019 ◽  
Vol 48 (3) ◽  
pp. 96-104 ◽  
Author(s):  
Сергей Романчиков ◽  
Sergei Romanchikov

One of the current priorities of food supply for military personnel in the Far North and the Russian Arctic is to preserve its nutrition quality while maintaining the mass of food ration. To implement this task, the author proposes to produce soft wheat pasta with animal protein and high nutrient content (retinol, i.e. vitamin A, minerals, mineral nutrients, omega-3 and omega-6 fatty acids). Beef liver was added to the pasta as an enriching additive in the amount of 30% of the total dough. The composition of the ingredients, their quantity, and the effect on the amount of nutrients in the modified food product were calculated according to a specially designed program. Modernized equipment made it possible to use ultrasound and infrared radiation to intensify the technology of pasta production. A device for ultrasonic magnetostriction processing of flour reduced the contamination of wheat flour with pathogenic microorganisms and mold. An ultrasound press made it possible to use low gluten wheat flour. Modernization of the drying equipment by including sources of ultrasound and infrared radiation accelerated the process of drying. As a result, the pasta with a high content of animal protein did not lose in quality. The experimental studies revealed empirical dependency between the quality of the pasta and the ultrasound and infrared radiation. Intensification of the production of pasta with animal protein and a high nutrient content was 22–26%, while the strength of the finished product increased by 20–25%.


Author(s):  
Rania A. El-Shenody ◽  
Mohamed Ashour ◽  
Mohamed Mahmoud Essam Ghobara

Abstract Seaweeds have a growing number of successful applications in the food industry, medicine and in the cosmetic industry, which increases the importance of evaluating their chemical composition. In the present study, three common Egyptian seaweeds (Dictyota dichotoma, Turbinaria decurrens and Laurencia obtusa) were collected from the Red Sea coast, Suez, Egypt. The chemical profile of the three seaweeds was studied beside the antioxidant activity of their extracts. The results indicated that the amount of carbohydrate was greater than the protein and lipid contents in the three seaweeds, with a natural richness in minerals and antioxidants besides considerable amounts of monounsaturated and polyunsaturated fatty acids, including Omega-3 and Omega-6 fatty acids. All essential amino acids for human were found in the three seaweeds, with significant amounts of aspartic and glutamic acids. Furthermore, the results of the antioxidant activity assays were consistent with the antioxidant contents (phenols, flavonoids, alkaloids, vitamin C, carotenoids) of each seaweed. D. dichotoma was the most valuable seaweed of the three species studied, due to its relatively high protein content of 7.28 ± 0.25%, moderate carbohydrate content of 25.35 ± 0.32%, and highest pigment and antioxidant contents. In conclusion, these three seaweeds, especially Dictyota dichotoma, have an interesting chemical composition with a prospective nutritional and pharmaceutical value.


2012 ◽  
Vol 90 (1) ◽  
pp. 55-73 ◽  
Author(s):  
Heinz Rupp ◽  
Thomas P. Rupp ◽  
Peter Alter ◽  
Bernhard Maisch

The causes of reduced levels of omega-3 and omega-6 highly unsaturated fatty acids (“HUFA deficiency”) in heart failure remain unresolved. HUFA profiles were examined in the serum of 331 patients with failing versus nonfailing heart disease. Arachidonic acid was positively correlated (P < 0.001) with eicosapentaenoic acid (EPA) (r = 0.40) and docosahexaenoic acid (DHA) (r = 0.53) and negatively with palmitic (r = 0.42), palmitoleic (r = 0.38), and oleic acid (r = 0.48). Delta-5 desaturase activity was reduced (P < 0.01) in heart failure patients with low ejection fraction, dilatation, increased wall stress, and reduced heart rate variability (SDNN). In these patients, the reduced (P < 0.01) HUFA and increased palmitic (P < 0.01) and oleic acid (P = 0.05) arose from separate influences involving reduced cardiac contractility (arachidonic acid and palmitic acid predicted by ejection fraction) and chamber dilatation (DHA and oleic acid predicted by end-diastolic diameter). A low DHA (0.2%–0.9% versus 1.4%–3.1%) was associated (P < 0.025) with atrial dilatation (44 ± 8 mm versus 40 ± 8 mm). Equidirectional but less pronounced effects on HUFA were induced by sympathetic activation and (or) insulin resistance (fat and sugar fed to deoxycorticosterone acetate (DOCA)-salt rats) but not by compensated cardiac overload alone (DOCA-salt or aortic constriction), or reduced fatty acid oxidation (CPT-1 inhibition). Based on administration of omega-3 HUFA (OMACOR), dilatation is identified as a target for 1–2 g omega-3 HUFA·day–1. Interventions for reduced arachidonic acid remain to be explored.


2014 ◽  
Vol 4 (1) ◽  
pp. 31-39
Author(s):  
Siwitri Kadarsih

The objective was to get beef that contain unsaturated fatty acids (especially omega 3 and 6), so as to improve intelligence, physical health for those who consume. The study design using CRD with 3 treatments, each treatment used 4 Bali cattle aged approximately 1.5 years. Observations were made 8 weeks. Pasta mixed with ginger provided konsentrat. P1 (control); P2 (6% saponification lemuru fish oil, olive oil 1%; rice bran: 37.30%; corn: 62.70%; KLK: 7%, ginger paste: 100 g); P3 (lemuru fish oil saponification 8%, 2% olive oil; rice bran; 37.30; corn: 62.70%; KLK: 7%, ginger paste: 200 g). Konsentrat given in the morning as much as 1% of the weight of the cattle based on dry matter, while the grass given a minimum of 10% of the weight of livestock observation variables include: fatty acid composition of meat. Data the analyzies qualitative. The results of the study showed that the composition of saturated fatty acids in meat decreased and an increase in unsaturated fatty acids, namely linoleic acid (omega 6) and linolenic acid (omega 3), and deikosapenta deikosaheksa acid.Keywords : 


Beverages ◽  
2021 ◽  
Vol 7 (3) ◽  
pp. 54
Author(s):  
Donal Moran ◽  
Mary Fleming ◽  
Eimear Daly ◽  
Natasha Gaughan ◽  
Ioannis Zabetakis ◽  
...  

Alcoholic beverages like apple cider are considered functional beverages with several health benefits, when consumed in moderation, which are mainly attributed to their microbiota and the plethora of their bioactive compounds. Among them, bio-functional polar lipids (PL) have recently been found in apple cider, which despite low quantities, have exhibited strong anti-inflammatory and anti-platelet properties, while fermentation seems to affect the functionality of apple cider’s PL bioactives. The aim of the present study was to elaborate yeast strains isolated from the complex mixtures of apple surface and must yeasts for evaluating their effects on the anti-platelet functional properties of PL bioactives from their final fermented apple cider products. First, bio-functional PL were extracted and separated from the biomass of the different isolated apple surface/must yeast strains, and were further assessed for their anti-platelet potency against human platelet aggregation induced by the potent inflammatory and thrombotic mediator platelet-activating factor (PAF), or by a classic platelet agonist like adenosine diphopshate (ADP). Novel functional apple ciders were then produced from the fermentation of apple juice by elaborating the most bioactive and resilient yeast strains isolated from the apple must with optimum fermentation properties. PL bioactives extracted from these novel apple cider products were also further assessed for their anti-platelet properties against both the PAF and ADP pathways of human platelet aggregation. These novel cider products were found to contain PL bioactives with lower IC50 values (~40 μg) and thus increased anti-platelet potency against platelet aggregation induced by PAF and ADP. GC-MS analysis of the PL bioactives extracted from these novel apple ciders showed that apple cider PL bioactives are rich in monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA), such as the omega-6 linoleic acid (LA) and the omega-3 alpha linolenic acid (ALA), with favorably lower levels for their omega-6/omega-3 PUFA ratio, which further support the observed strong anti-platelet properties putative anti-inflammatory potency for the apple cider PL bioactives. However, further studies are needed in order to elucidate and fully characterize the apple yeast strains that can be utilized for increasing the anti-inflammatory, anti-platelet and cardioprotective functional properties of their fermented apple cider products.


Author(s):  
Marcia C. de Oliveira Otto ◽  
Jason H. Y. Wu ◽  
Ana Baylin ◽  
Dhananjay Vaidya ◽  
Stephen S. Rich ◽  
...  

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