Catfish fillet processing industries produce several wastes, such us belly flap. This part has high fat content that can be a source of essential fatty acids. This research aimed to evaluate the physicochemical characteristics of the unsaturated fatty acids obtained from pangasius fish encapsulated with maltodextrin and sodium caseinate at different combinations. To determine the best combination of maltodextrin and sodium caseinate with ratio 90/10, 80/20, and 70/30, parameters such as emulsion viscosity, product yield, microencapsulation efficiency, encapsulated oil yield, water solubility, morphology and whiteness were measured. Based on the results, maltodextrin and sodium caseinate ratio of 70/30 was the most optimal because it resulted in the highest values in terms of microencapsulation efficiency (63.08%) and oil microencapsulation yield (24.13%).
Concentrated unsaturated fatty acids are processed from refined catfish oil extracted from belly meat which is the byproduct of the industry processing pangasius fillets. This belly part contains high enough fat which can be used as a source of essential fatty acids. This essential fatty acid is useful for human health and can reduce the risk of cancer and cardiovascular disease. The purpose of this study was to evaluate the physical and chemical characteristics of the encapsulated concentrated unsaturated fatty acids that have been produced. This study used a combination of coatings (maltodextrin and sodium caseinate; 9:1, 8:2, 7:3) with a ratio of unsaturated fatty acid concentrate with coating 1:5. The physicochemical characteristics analyzed were microencapsulation efficiency, dried encapsulated yield, emulsion viscosity, wettability, water solubility, morphology (SEM) and hygroscopicity. Based on the results of the study show that the ratio of 9:1 is the most optimal comparison in this study which have the lowest emulsion viscosity 12.60 cP with the efficiency of microencapsulation of 40.91% and the dried encapsulated yield of 47.82%
Ikan manyung merupakan ikan berdaging putih yang banyak dijadikan sebagai bahan baku pembuatan ikan asap. Ikan asap dapat diproses menggunakan asap cair. Salah satu asap cair yang dapat digunakan yaitu asap cair kulit durian. Tujuan penelitian ini mengetahui pengaruh lama perendaman asap cair kulit durian terhadap kualitas ikan manyung asap. Penelitian ini disusun dengan metode Rancangan Acak Lengkap (RAL) dengan perlakuan lama perendaman dalam asap cair kulit durian yang berbeda (0, 30, 60, dan 90 menit) dengan konsentrasi asap cair 5%. Pengujian yang dilakukan dalam penelitian ini yaitu uji sensori, kadar lemak, kadar protein, kadar air, kadar abu, kandungan lisin, kadar fenol, uji TPC (Total Plate Count), dan uji pH. Hasil penelitian secara keseluruhan menunjukan perlakuan lama perendaman 90 menit memberikan hasil terbaik dengan nilai sensori yaitu 8,56 ≤ μ ≤ 8,84, nilai kadar lemak 5,80±0,19%, kadar protein sebesar 83,68±0,02%, kadar air sebesar 48,31±0,17%, kadar abu tertinggi sebesar 6,86±0,12%, lisin sebesar 0,909±0,002%, fenol sebesar 349,23±11,59 ppm, nilai TPC sebesar 4,243±0,012 cfu/g, dan nilai pH sebesar 6,55±0,09. Penggunaan asap cair kulit durian dengan lama perendaman yang berbeda berpengaruh nyata (P<0,05) terhadap nilai sensori, kadar lemak, kadar protein, kadar air, kandungan lisin, kadar fenol, TPC, dan pH, namun, tidak berbeda nyata terhadap nilai kadar abu.
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