Caviar composition in wild and cultured sturgeons - impact of food sources on fatty acid composition and contaminant load

Geßner, Jörn; Wirth, Manfred; Kirschbaum, Frank; Krüger, Angela; Patriche, N.

doi:10.1046/j.1439-0426.2002.00366.x

Cited by 37 publications

(31 citation statements)

References 13 publications

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Section: Fatty Acid Profile Chemical Composition and Fertilization Rsupporting

confidence: 89%

“…Wild fish ova neutral lipids can have significantly lower proportions of total PUFAs compared to farmed fish (A. transmontanus, A. fulvescens) [6] and this is due to the higher quality of linolenic acid (18:3n-3) in diet of the farmed fish. Similar results have also been reported in cultured stellate sturgeon (A. stellatus) in Romania [2] and in other studies of cultivated beluga fatty acid composition of muscle tissue [33].Home viscous adaptation in response to environmental temperature is a primary reason for the prominence of n-3 PUFAs in the tissues of poikilotherms such as marine fish [34]. In current study, the cultivated beluga were cultured at 19ºC in freshwater for nine years and fed a plant oil containing diet.…”

supporting

confidence: 87%

“…The amount of linoleic acid (18:2n-6) was much greater in the cultivated beluga eggs than in wild ones. The same tendency was also found in the lipid profile of ovulated eggs of wild and cultured turbot (Scophthalmus maximus) [30], striped bass (Morone saxatilis) [32] and white sturgeon [6] and is a reflection of dietary fat intake [2,6,11,30]. In addition, Hosseini et al [33] compared the effect of three different diets including fish oil, soybean oil and canola oil on muscle fatty acids profiles in cultivated beluga (H. huso).…”

Section: Fatty Acid Profile Chemical Composition and Fertilization Rmentioning

confidence: 68%

“…Gessner et al [2] found a similar trend for EPA and DHA in wild and cultured stellate (A. stellatus). It has been documented that n-3 fatty acids are more important for fish growth and reproduction than are n-6 fatty acids and that the n-3/ n-6 is important for overall fish health.…”

Section: Fatty Acid Profile Chemical Composition and Fertilization Rmentioning

confidence: 71%

“…Demand for caviar on export markets is estimated at 500 tonnes annually [2,3] and is increasing as demand in Asia grows. Loss of wild harvest is reflected in capture figures from Iran, the country that has the most reliable harvest projections.…”

Section: Introductionmentioning

confidence: 99%

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Fatty acid and Amino acid Profiles of Domestic and Wild Beluga (Huso huso) Roe and Impact on Fertilization Ratio

Ovissipour¹,

Rasco²

2011

J Aquac Res Development

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A comparison of the fatty acid, amino acid and proximate composition between the roe of wild and cultivated beluga (Huso huso) sturgeon from Iran are presented here. The fatty acid profile varied between wild and cultivated sturgeons but there was no differences observed for proximate composition and amino acid profile. The wild sturgeon roe contained higher amounts of n-3 fatty acids particularly eicosapentaenoic acid (20:5n-3, EPA) (wild: 2.9%, cultivated: 1.24%) and docosahexaenoic acid (22:6n-3, DHA) (wild: 5.1%, cultivated: 2.38%). Linolenic and linoleic acids were the predominant fatty acids in roe from cultivated beluga, a reflection of diet and also a likely physiological adaptation to a higher temperature environment. Low levels of PUFA in cultivated sturgeon negatively affected fertilization and hatching ratios which were significantly lower than for the wild fish. Hence, in order to culture beluga, feed with higher fatty acid with more n-3 is necessary to reach high quality roe and fertilization and hatching ratio. parameters, have been used to determine egg quality, which are also affected by a nutritional deficiency in broodstock diets. Indeed, one of the major nutritional factors that have been found to significantly affect reproductive performance in fish is the dietary essential fatty acid content [9]. Selective retention of DHA has also been found during embryogenesis and during starvation denoting the importance of this fatty acid for the developing embryo and larvae.At present, studies available on lipid composition of cultured sturgeons are somewhat limited in the sense that they do not provide a comparison of cultured and wild beluga roe or meat [10][11][12][13][14][15][16]. Here, a comparison of the chemical composition (chemical, fatty acid and amino acid profiles) of the roe from farmed and wild caught beluga (H. huso) from the same watershed in the southern Caspian Sea is presented and how this may affect egg survival is presented. Materials and Methods Egg collectionWild beluga (H. huso) (Female: TL = 240 ± 40 cm, weight = 95 ± 7 kg; Male: TL = 180 ± 20 cm, weight = 82 ± 5 kg) were captured during their spawning season (February-March) on the south eastern coast of the Caspian Sea between Gorgan and Sari using gillnets fishing method and taken to the Marjani Hatchery Center (Gorgan, Iran). Eggs collected for the recruitment program were recovered from live fish that had been transferred to this hatchery. After 24 h adaptation, 50 g eggs from each five ovulating females were collected using surgically method, placed into separate 20 ml plastic containers and immediately frozen in liquid nitrogen. Simultaneously, ovulated eggs from cultured beluga (Female: TL = 190.6 ± 12.5 cm, weight = 94.6 ± 9.3 kg; Male: 160 ± 10 cm, weight: 73 ± 6 kg ) were collected at the Rajaee Sturgeon Hatchery Center, in Sari, Iran in 2009, a culture facility about 120 km far from Marjani and eggs were recovered from three females as described above. These fish had been reared in fresh, warm (19 ± 2ºC) ar...

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Section: Fatty Acid Profile Chemical Composition and Fertilization Rsupporting

confidence: 89%

supporting

confidence: 87%

Section: Fatty Acid Profile Chemical Composition and Fertilization Rmentioning

confidence: 68%

Section: Fatty Acid Profile Chemical Composition and Fertilization Rmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fatty acid and Amino acid Profiles of Domestic and Wild Beluga (Huso huso) Roe and Impact on Fertilization Ratio

Ovissipour¹,

Rasco²

2011

J Aquac Res Development

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Mineral content of eggs

Armenta

Guárdia

2015

Handbook of Mineral Elements in Food

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Caviar versus brill eggs: A novel high performance liquid chromatography‐mass spectrometry application for evaluating cosmetic ingredients composition

Bello

Santoro

Aigotti

et al. 2016

Euro J Lipid Sci & Tech

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In this study, raw materials, sturgeon and brill roe, were analyzed and compared as regard their use in cosmetic products. Recently, expensive caviar was largely used in beauty creams as lipids source. We compared lipids from caviar and brill eggs to propose a technological alternative. The fatty acids amount was determined with a new GC-MS method. The triacylglycerols were identified and characterized by HPLC coupled with high resolution MS (HRMS). Both techniques showed a higher content of fatty acids and triacylglycerols in caviar respect to brill eggs. Some fatty acids, such as linoleic and linolenic acids, which are recognized to enhance skin metabolism, are absent, or show very low concentration, in brill eggs respect to sturgeon ones. It was possible to conclude that brill eggs are not a proper substitute of caviar in the formulation of cosmetic.Practical application: The developed analytical techniques provided a satisfactory analytical characterization of the raw materials. Although the sample preparation for GC-MS analysis is quite time consuming due to the derivatization of fatty acids, the one for triacylglycerols analyzed by HPLC-HRMS is very fast, and involves the use of a small amount of organic solvent. Fatty acids and triacylglycerols were identified and characterized.

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Caviar composition in wild and cultured sturgeons - impact of food sources on fatty acid composition and contaminant load

Cited by 37 publications

References 13 publications

Fatty acid and Amino acid Profiles of Domestic and Wild Beluga (Huso huso) Roe and Impact on Fertilization Ratio

Fatty acid and Amino acid Profiles of Domestic and Wild Beluga (Huso huso) Roe and Impact on Fertilization Ratio

Mineral content of eggs

Caviar versus brill eggs: A novel high performance liquid chromatography‐mass spectrometry application for evaluating cosmetic ingredients composition

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