Comparison of fatty acids and some mineral matter profiles of wild and farmed snails, <i>Cornu aspersum</i> Müller, 1774

Çelik, Meryem Yeşim; Duman, Mehmet; Sarıipek, Merve; Gören, Gülşen Uzun; Öztürk, Dilara Kaya; Kocatepe, Demet; Karayücel, Sedat

doi:10.1080/13235818.2019.1596531

Cited by 9 publications

(4 citation statements)

References 24 publications

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“…As a result of the experiments related to the mineral analysis of snail meat, significant differences were observed in the carcasses' Ca, iron, phosphorus, Mg, sodium, potassium, manganese, and zinc contents. The values of these minerals were significantly different compared with the results of previous studies [120,121], where higher Ca, iron, and phosphorus contents were found in the carcasses studied. In contrast, a lower Ca content was recorded compared with the results of Ça gıltay (2011) [115].…”

Section: Carcass Characteristics 421 Experiments Icontrasting

confidence: 97%

Effect of Different Levels of Calcium and Addition of Magnesium in the Diet on Garden Snails’ (Cornu aspersum) Condition, Production, and Nutritional Parameters

Rygało-Galewska,

Zglińska,

Roguski

et al. 2023

Agriculture

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Edible snails are an attractive protein source due to their high growth rate, cost-efficiency, and nutritional value. Calcium is crucial for snail growth, reproduction, and shell formation, while magnesium plays a role in enzyme function and muscle tone. This study aimed to optimise calcium and magnesium levels in Cornu aspersum diets to optimise the production and technological characteristics of the derived animal products. Snails were fed specific diets in controlled conditions with varying calcium and magnesium levels (44.3, 66.1, 88.7, 103.5 Ca g/kg feed and 3.3, 5.6, 7.2 Mg g/kg feed) for four months. Their growth, shell characteristics, and meat composition were evaluated. As calcium in the feed increased, carcass and shell weights were higher. Also, the crushing force of the shells was higher with increasing amount of calcium in the feed. In the group with 10.35% calcium and 0.72% magnesium, snail growth significantly slowed down after three months, with lower mortality. It is suggested that a shortened fattening cycle by 3–4 weeks compared to the magnesium-free diet is possible. However, based on meat, shell, mortality, and feed intake analysis, a 0.56% magnesium concentration in the feed seems to give better results, as magnesium content at 0.72% might be toxic to snails. Further investigation is to confirm the possibility of neutralising the negative effects of magnesium in the diet through increasing calcium and phosphorus intake.

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Section: Carcass Characteristics 421 Experiments Icontrasting

confidence: 97%

Effect of Different Levels of Calcium and Addition of Magnesium in the Diet on Garden Snails’ (Cornu aspersum) Condition, Production, and Nutritional Parameters

Rygało-Galewska,

Zglińska,

Roguski

et al. 2023

Agriculture

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“…The predominant PUFAs were C18:2n-6, C20:2n-6, C20:4n-6, C20:5n-3, and C22:5n-3, representing 5.1 ± 0.3, 7.2 ± 1.1, 21.6 ± 2.0, 4.4 ± 0.4, and 6.2 ± 2.8%, respectively. This composition is in accordance with the fatty acid profiles of other snails found in the literature (Ekin and S¸es¸en 2017;Silva et al 2017;Panayotova et al 2019;Çelik et al 2019), except for the presence of C20:5n-3 in the present study (see Supplemental Data). This PUFA was found to be characteristic of fatty acid profiles for marine invertebrates (mostly mollusks) and was also a major component of the marine gastropods Rapana venosa and Turbo cornutus (Isay and Busarova 1984;Saito and Aono 2014).…”

Section: Fatty Acid Profiles Of Control Biofilms and Grazerssupporting

confidence: 93%

Thorium Exposure Drives Fatty Acid and Metal Transfer from Biofilms to the Grazer Lymnaea sp.

Doose

Fadhlaoui

Morin

et al. 2021

Enviro Toxic and Chemistry

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Aquatic ecotoxicological risks associated with tetravalent metallic elements such as thorium (Th) are still poorly understood. Periphytic biofilm represents an important food source in aquatic environments; thus, such risks could severely affect nutrient and energy cycling in these ecosystems. The present study investigated the potential for Th to change the fatty acid composition of biofilm communities. Bioaccumulation of Th and fatty acids were measured after 4 wk to 2 exposure conditions: a control (C0) and Th exposure (C10). Some major fatty acids such as C16:1n-7 and docosahexaenoic acid C22:6n-3 differed significantly between control and C10 conditions. To determine if Th can be trophically transferred and to investigate the impacts of nutritional quality changes on primary consumers, common pond snails (Lymnaea sp.) were fed for 4 wk with control and Th-exposed biofilm. Thorium appeared to be trophically transferable to the grazers, although we cannot exclude that part of the Th accumulated by the snails may have been taken from the water through release from the biofilms. The composition of major fatty acids observed in the grazers was also significantly affected, notably by a decrease of total polyunsaturated fatty acids. These results indicate that very low Th concentrations can decrease the nutritional quality of organisms at the base of the food chain.

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“…O wartości odżywczej żywności decydują natomiast: wartość energetyczna, wartość biologiczna oraz strawność. Jak wykazały badania dotyczące poszczególnych składników odżywczych, mięso ślimaków, w tym również z gatunków pozyskiwanych w Polsce, charakteryzuje się niską zawartością tłuszczu, wyższym poziomem kwasów tłuszczowych nienasyconych w porównaniu do nasyconych oraz korzystnym stosunkiem zawartości kwasów tłuszczowych n-6 do n-3 (10,41). Mięso ślimaków może stanowić również interesującą alternatywę dla źródła białka w diecie człowieka.…”

Section: Praca Oryginalnaunclassified

“…Składniki te bowiem odgrywają istotną rolę w zbilansowanej diecie człowieka i kształtowaniu się prozdrowotnych cech produktu spożywczego. Jak wykazały badania, mięso ślimaków z gatunków Helix lucorum, Helix pomatia, Cornu aspersum, a także z rodzaju Archatina, Achatina i Limicolaria stanowić może istotne źródło takich minerałów, jak: wapń, potas, magnez, żelazo, cynk, miedź oraz selen (1,2,6,10,15,16,20,35). Ilość tych pierwiastków w znacznym stopniu zależy od części anatomicznej ślimaka, obszaru geograficznego z którego pochodzi, terminu zbioru, sposobu chowu oraz żywienia.…”

Section: Praca Oryginalnaunclassified

Content of vitamin C in edible tissues of snails obtained in Poland

Gondek¹,

Knysz²,

Lechowski³

et al. 2020

Medycyna Weterynaryjna

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Ascorbic acid (Vit. C) is essential for the proper functioning of the human body. Humans are unable to synthesize vitamin C endogenously, so it must be supplied with food. The available literature does not provide any data on the content of vitamin C in the meat of snails. The aim of the study was therefore to determine and compare its content in the edible parts of snails obtained in Poland. The research material consisted of 30 samples of snail meat (the foot with the collar and a fragment of the coat) belonging to three species: Helix pomatia, Cornu aspersum aspersum, and Cornu aspersum maxima. Helix pomatia snails were obtained from the natural environment, while the other two species came from commercial breeding farms. Ascorbic acid was determined by the method of Roe and Kuethner, as modified by Dabrowski and Hinterleitner (1989). Previously, tissues for biochemical analysis were prepared according to the methodology described by Zannoni et al. (1974). The average level of vitamin C in the edible parts of particular snail species ranged from 38.14 mg/kg (Helix pomatia) to 185.38 mg/kg (Cornu apsersum aspersum). Statistically significant differences in the level of ascorbic acid were found between all species of snails examined. The highest vitamin C content was found in the meat of Cornu aspersum aspersum. The lowest level of ascrobic acid occurred in the meat of Helix pomatia, in which it was 20.41% and 37.04% of the levels found in the meat of Cornu aspersum aspersum and Cornu aspersum maxima, respectively. The present research showed a significantly higher content of ascorbic acid in snails of the Cornu genus kept in heliculture as compared to free-living snails (Helix pomatia). Moreover, the content of ascorbic acid in the edible parts of snails is higher than it is in pork and beef meat. The present study showed that snails from the Cornu genus can be an additional valuable source of vitamin C in the human diet.

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Comparison of fatty acids and some mineral matter profiles of wild and farmed snails, Cornu aspersum Müller, 1774

Cited by 9 publications

References 24 publications

Effect of Different Levels of Calcium and Addition of Magnesium in the Diet on Garden Snails’ (Cornu aspersum) Condition, Production, and Nutritional Parameters

Effect of Different Levels of Calcium and Addition of Magnesium in the Diet on Garden Snails’ (Cornu aspersum) Condition, Production, and Nutritional Parameters

Thorium Exposure Drives Fatty Acid and Metal Transfer from Biofilms to the Grazer Lymnaea sp.

Content of vitamin C in edible tissues of snails obtained in Poland

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