Physicochemical Properties, Volatile Compounds and Phospholipid Classes of Silver Carp Brain Lipids

Abstract

Large amounts of utilizable by‐products are produced concomitant with silver carp processing. The lipids from fish brain contain considerable essential fatty acids which however have seldom been studied. In this study, the lipids extracted from the brain of silver carp exhibited good physicochemical properties. Forty volatile compounds were identified, of which hydrocarbons and aromatics predominated. The ratios of polar lipids and phospholipids to total lipids were 22.73 and 10.95 % respectively. Phosphatidylcholine (PC), phosphatidylethanolamine (PE) and phosphatidylserine (PS) accounted for 83.9 % of the phospholipids. Major fatty acids of neutral lipids, polar lipids, PC, PE and PS differed significantly. PE had the most polyunsaturated fatty acids (PUFA), while PC, PE and PS were rich in docosahexaenoic and eicosapentaenoic acids. Moreover, the ratios of fatty acids were considered to be reasonable due to high levels of n3 PUFA. The lipids from silver carp brain have been demonstrated to be healthy and nutritious. The results herein confirm that silver carp brain lipids are a commercially and industrially feasible prospect.

Protective effects of lipid extract from brains of silver carp against oxidative damage in HEK-293 cells

“…Our previous studies showed that PLs account for 22.73% of the TLs in the silver carp brain and that the total u-3 PUFAs in PLs (27.64%) are apparently higher than that in NLs (18.73%). 9 Among the biologically active lipids, the phospholipids in PLs, which are more abundant in long-chain PUFAs due to their functional role, are nutritionally and functionally unique. 18 The phospholipids were found to account for 48.17% of PLs.…”

“…These FAs mainly include alinolenic acid (67.66 mg g À1 brain lipids), arachidonic acid (24.31 mg g À1 brain lipids), eicosapentaenoic acid (EPA, 51.74 mg g À1 brain lipids) and docosahexaenoic acid (DHA, 69.52 mg g À1 brain lipids). 9,10 We also observed that lipids from silver carp exhibit good biological properties, such as antiplatelet-activating factor and antibacterial and anticancer activities. 11,12 Moreover, lipids from silver-carp brain exert a strong scavenging effect on 2,2-diphenyl-1-picrylhydrazyl radical, 12 which initially demonstrated the antioxidative potential of silver-carp brain lipids.…”

Detoxification of <em>Jatropha curcas</em> oil by ultraviolet irradiation combined with ethanol washing

“…The FAC was determined on a GC/flame-ionization detector (Shimadzu 2010; fused-silica capillary column: CP-WAX, 30M I.D.0.32 mm) according to the method of GC described by Wang et al, (2013).…”

Comparative Study on Nutritional Value and Fatty Acid Profiles of Brains and Eyes from Four Freshwater Fishes

“…Silver carp (Hypophthalmichthys molitrix), bighead carp (Aristichthys nobilis), grass carp (Ctenopharyngodon idellus) and black carp (Mylopharyngodon piceus) are the four major types of freshwater fish in China and they have been processed into various food products due to high yields and a low price. However, over half of total fishery products are being discarded as inedible by-products every year [1].…”

“…FA compositions were detected according to methods described by Wang et al [1] and the quantification was accomplished by the use of external standards.…”