Wax Esters of Mullet (Mugil cephalus) Roe Oil

Iyengar, Ramanuja; Schlenk, Hermann

doi:10.1021/bi00854a005

Cited by 67 publications

(22 citation statements)

References 19 publications

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“…Neutral lipids comprised 73.7 ( 1.7% of the avgotaracho total lipid extract ( Table 2), something expected for lipid-rich fish roe (30). Wax and steryl esters predominated among the lipid classes comprising 63.7 ( 1.1% of avgotaracho lipids ( Table 2) in agreement with previous studies, which reported wax ester contents as high as 70% of mullet roe lipids, with steryl esters comprising only a small fractionsless than 1%sof total lipids (3,6). Wax esters occur as a major lipid class in several species of marine animals.…”

Section: Resultssupporting

confidence: 90%

Chemical Composition of Greek Avgotaracho Prepared from Mullet (Mugil cephalus): Nutritional and Health Benefits

Kalogeropoulos

Nomikos

Chiou

et al. 2008

J. Agric. Food Chem.

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Crude composition, lipid composition, and tocopherols, ascorbic acid, cholesterol, phytosterols, and squalene content together with fatty acids and antiplatelet activities of total, neutral, and polar lipids of avgotaracho (wax-covered, dried, and salted Mugil cephalus roe) were studied and compared with those of similar products. Wax and steryl esters accounted for 63.7% of roe lipids followed by phosphatidylcholine (PC), which comprised 20.3%. Wax esters were rich in saturated fatty alcohols, monounsaturated fatty acids, and long chain omega3 highly unsaturated fatty acids (HUFA). The fatty acid distribution in roe total and neutral lipids was similar to that of wax esters, while in polar lipids, the omega3 HUFA predominated. Avgotaracho provides significant amounts of protein, fat, alpha-tocopherol, ascorbic acid, and PC, certain amounts of squalene and phytosterols, and cholesterol at levels comparable to hens' eggs. Total, polar, and neutral lipids of avgotaracho exhibited a strong inhibition of platelet activating factors and thrombin, with polar lipids being more active. The results obtained indicate that avgotaracho is a food of high nutritive value, rich in protein and lipids with a healthy lipid profile in terms of omega3/omega6 ratio and major fatty acid classes, while the antiplatelet activity of its oil indicates a putative antithrombotic potential.

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Section: Resultssupporting

confidence: 90%

Chemical Composition of Greek Avgotaracho Prepared from Mullet (Mugil cephalus): Nutritional and Health Benefits

Kalogeropoulos

Nomikos

Chiou

et al. 2008

J. Agric. Food Chem.

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“…A rather similar distribution is generated assuming that the esterification of the normal ester alcohols with the normal ester acids is independent of the chain lengths of the two moieties. Both better and worse fits of observed to calculated ester distributions have been reported and claimed to support the hypothesis that the esterification mechanism is a random one (14,16,28,29,33). While the presebt data do not strongly support the random esterification hypothesis, they also do not imply that the esterification enzyme (s) have a marked chain length specificity.…”

Section: Chain Length Distributions Of the Lipid Classes On Cer-u 69 mentioning

confidence: 95%

Composition of epicuticular waxes on barley spikes

Wettstein-Knowles

Netting

1976

Carlsberg Res. Commun.

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Hydrocarbons, alkan-l-ol and alkan-2-ol containing esters, 13-diketones, aldehydes, primary alcohols, hydroxy-13-diketones, free fatty acids and sometimes secondary alcohols are major lipid classes of epicuticular waxes on the spikes of the three wild type barley varieties Bonus, Foma and Carlsberg-ll and many of the 40 eceriferum (cer) mutants examined. Division of the spikes into two parts, the awns and the spike minus awns, before wax isolation reveals that (i) 13-diketones, hydroxy-13-diketones and esterified alkan-2-ols occur only on the spike minus awns, (ii) secondary alcohols are present only on the awns of Foma and its mutants and (iii) the other lipid classes are found on both parts of the spike. The chain length distributions of the lipid classes common to both parts of the spike are in some cases similar and in others different.

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“…For lipid contents data were obtained from the literature. (Golden perch, Macquarie perch, silver perch, Murray cod, Australian bass (Anderson, Arthington & Anderson 1990); burbot, European perch, vendace, roach, Atlantic (Baltic) herring (Kaitaranta & Ackman 1981); Argentine hake (Méndez, Fernández, Pazo & Grompone 1992); gray mullet (Iyengar & Schlenk 1967); European seabass (Devauchelle & Coves 1988; Bell, Farndale, Bruce, Navas & Carillo 1997); striped bass (Eldridge, Joseph, Taberski & Seaborn 1983); orange roughy (Body 1985); turbot (Finn et al . 1996); red drum (Vetter, Hodson & Arnold 1983); Senegal sole (Vázquez, Gonzfilez, Rodriguez & Mourente 1994); gilthead seabream (Rønnestad et al .…”

Section: Amino Acids As Fuel Moleculesmentioning

confidence: 99%

Requirement for amino acids in ontogeny of fish

Finn

Fyhn

2010

Aquaculture Research

149

114

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Amino acids are vital for all living organisms. During early fish ontogeny, they are important fuel molecules, signalling factors and major substrates for the synthesis of a wide range of bioactive molecules and proteins. Because the majority of fish eggs are cleidoic, i.e. closed free‐living systems following ovulation and activation, early development of fish depends on the maternal provision of amino acids during oogenesis. While more than 600 proteins have been identified in the growing oocytes of fish, the major vehicles for supplying amino acids to the growing oocyte before ovulation are the vitellogenins, of which many genes and multiple forms are known. Here we review the importance of amino acids for the intermediary metabolism of fish embryos and larvae, where amino acids have been shown to be the preferred catabolic substrate. Subsequently, we address the specialization of the lysosomal pathway involved in the uptake and degradation of yolk proteins. This latter pathway is specifically modified in the germline to facilitate the long‐term storage of egg yolk proteins. In marine teleosts, the degradative pathway may be activated before fertilization during oocyte maturation to release free amino acids for oocyte hydration and the acquisition of egg buoyancy. In other species, including freshwater fish, a more latent activation of acid hydrolases occurs after fertilization during the four phases of yolk resorption. The developmental contributions of the yolk syncytial layer, vitelline circulation and liver are essential components of the amino acid supply during fish ontogeny.

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Wax Esters of Mullet (Mugil cephalus) Roe Oil

Cited by 67 publications

References 19 publications

Chemical Composition of Greek Avgotaracho Prepared from Mullet (Mugil cephalus): Nutritional and Health Benefits

Chemical Composition of Greek Avgotaracho Prepared from Mullet (Mugil cephalus): Nutritional and Health Benefits

Composition of epicuticular waxes on barley spikes

Requirement for amino acids in ontogeny of fish

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