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:: Volume 6, Issue 20 (4-2015) ::
JPG 2015, 6(20): 13-20 Back to browse issues page
Effect of Different Factors on the Quantity of Gelatin and Oil Extracted from Tuna Fish
Rashid Alijani Ardeshir , Sara Rastgar , Joe Mac Regenstein
Khorramshahr University of Marine Science and Technology
Abstract:   (1664 Views)

Gelatin and oil from three species of tuna fish, Thunnus albacares (yellow-fin tuna), Thunnus tonggol (long-tail tuna), and Katsuwonus pelamis (skipjack tuna) were extracted to study the factors affecting yield. Factors studied included organ (fin or skin), catch location (Chah bahar, Bushehr, Bandar-e abbas), season (summer or winter) and species (the three species). To extract gelatin and oil, an alkali treatment and a solvent method, were used. respectively, The highest amount of gelatin extracted from the skin of K. pelamis was 17.5 ± 0.3% and the lowest from the fin of T. tonggol, 7.9 ± 0.4%. The highest and lowest amount of oil extracted were from skin of T. tonggol (7.5 ± 0.3%) and its fin (3.7 ± 0.8%), respectively. The organ and species showed significant effects on gelatin and oil extracted (p < 0.05), but not seasons and location (p > 0.05).

Keywords: Fish oil, Fish gelatin, Tuna fish, By-products.
Full-Text [PDF 337 kb]   (947 Downloads)    
Type of Study: Applied Research | Subject: Marine Biology
Received: 2016/09/5 | Accepted: 2016/09/5 | Published: 2016/09/5
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Alijani Ardeshir R, Rastgar S, Regenstein J M. Effect of Different Factors on the Quantity of Gelatin and Oil Extracted from Tuna Fish. JPG. 2015; 6 (20) :13-20
URL: http://jpg.inio.ac.ir/article-1-382-en.html


Volume 6, Issue 20 (4-2015) Back to browse issues page
نشریه علمی پژوهشی خلیج فارس Journal of the Persian Gulf
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