Characterization of a hydrolyzed oil obtained from fish waste for nutraceutical application

Abstract

The fish industry generates high volume of waste from fish oil that can have the extraction of its lipids used as nutraceuticals and foods. The objective of this study was to produce unsaturated fatty acids from industrialized fish oil by means of a differentiated hydrolysis process. The samples used were crude fish oil obtained from Campestre industry and characterized through physicalchemical parameters, according to ADCS: acidity, peroxide, saponification, iodine and percentage of free fatty acids and also obtained the fatty acid profile through derivatization method for gas chromatography. The results obtained for the oleochemical indices for refined oil were similar to the data found on the literature. The content of polyunsaturated fatty acids (PUFA) was found of 32,78%, with 9,12% of docosahexaenoic (DHA) and 10,36% of eicosapentaenoic (EPA), regarding monounsaturated fatty acids (MUFA) content was of 30,59% in the hydrolyzed fish oil in relation to refined (20,06%). Thus, it can be concluded that the hydrolysis process used for oils from fish-waste was satisfactory on the production of absolute yield of lipids in the process and significant preservation on the percentages of EPA and DHA, interesting on the production of nutraceuticals and nutrition of aquatic animals, including shrimp in captivity.

One-Step Partially Purified Lipases (ScLipA and ScLipB) from Schizophyllum commune UTARA1 Obtained via Solid State Fermentation and Their Applications

“…This was apparent in Table 4 as the crude fish oil hydrolysis produced glycerol of 2.489 μmol/mg protein /day. Fish oil is a source of LCTG, especially long chain essential fatty acids (C20 and C22) [6]. The total crude fish oil from the extraction method was 13.2 g per 400 g of fish viscera and unwanted parts, which was used directly as crude fish oil.…”

“…Thus, this speed up the reaction processes and product procurement. The seafood industry generates wastes mainly from the discarded parts of fish, i.e., heads, fins, guts, scales and skins, that have potential for fish oil extraction and subsequent use in the food or nutraceutical industries [6] as an alternative to decrease land filling and environment pollution. Coconut oil, from the kernel of Cocos nucifera L., a clear liquid with pleasant aroma, is edible and used in bakery, confectionary, cooking, pharmaceutical and cosmetics [7].…”

Effect of Oxidative Sardin Fish Oil for Food Utilization

“…Klinkesorn et al (2004) melakukan penelitian transesterifikasi minyak ikan tuna menggunakan katalis kimia yaitu natrium metoksida dan didapatkan hasil yang terbaik dengan kandungan EPA dan DHA tertinggi pada konsentrasi katalis natrium metoksida 1,5% dan pada suhu transesterifikasi 80ºC. Nascimento et al (2015) melakukan transesterifikasi menggunakan KOH dan hasil terbaik yang didapatkan yaitu konsentrasi KOH 22% dan perbandingan minyak: etanol yaitu 1:39.…”

Effect of various postmortem processing times and blanching methods on quality of rainbow trout (Oncorhynchus mykiss) waste oil

“…However, high susceptibility to rancidity mainly due to various double carbon–carbon bonds present in fatty acid molecules may render the oil less valuable or even useless (Benjakul & Morrissey, ). Valorization of fish processing wastes, for instance extracting such valuable oil, is subject of recent studies (Carsuo, ; Fiori et al, ; Nascimento et al, ; Nazir, Diana, & Sayuti, ). Various extraction methods have been proposed to extract oil from seafood wastes (Cyprian et al, ; Deepika et al, ; Hao et al, ; Laila, Wahidu, & Tajul, ).…”

“…Valorization of fish processing wastes, for instance extracting such valuable oil, is subject of recent studies (Carsuo, 2015;Fiori et al, 2012;Nascimento et al, 2015;Nazir, Diana, & Sayuti, 2017). Various extraction methods have been proposed to extract oil from seafood wastes (Cyprian et al, 2016;Deepika et al, 2014;Hao et al, 2015;Laila, Wahidu, & Tajul, 2014).…”