Characterization and refining of Berryteuthis magister viscera oil
| Autor: | Mi-Soon Jang, Ji-In Park, Poong Ho Kim, Won Ju Kwak, Kil Bo Shim |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Korean Journal of Food Preservation. 27:906-914 |
| ISSN: | 2287-7428 1738-7248 |
| DOI: | 10.11002/kjfp.2020.27.7.906 |
| Popis: | To effectively utilize marine by-products, the characteristics of Berryteuthis magister viscera and refining of viscera oil were investigated. The proximate composition of B. magister viscera constituted 42.21% moisture, 6.15% crude protein, 46.74% crude lipid, and 0.81% ash. The fatty acid composition of the viscera comprised 44.29% polyenes, 35.25% monoenes, 20.45% saturates, and eicosapentaenoic acid (EPA) was major component as a 21.47%. Raw oil was extracted by heating the viscera at 80°C, which consisted of 68.49% neutral lipid, 30.56% glycolipid, 0.95% phospholipid, and 14.99 mg/kg astaxanthin. In the process of refining, degumming with 8% citric acid solution at 80°C for 20 min was effective in removing the phosphorous contents. Optimal conditions for neutralization included treatment with 5 mL of 20% sodium hydroxide solution per 100 g of degummed oil at 80°C for 20 min. The acid value decreased from 17.29 mg KOH/g to 0.27 mg KOH/g in the deacidified oil. Bleaching was optimized by adding 5% clay acid and heating for 20 min at 100°C under vacuum. After bleaching, the acid and peroxide values were 0.14 mg KOH/g and 9.78 meq/kg, respectively. The fatty acid composition of the refined viscera oil consisted of 48.03% polyenes, 33.02% monoenes, 18.97% saturates, and EPA (24.30%) as the major fatty acid. The results suggest that B. magister viscera can be used as a functional resource material. |
| Databáze: | OpenAIRE |
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