D'Armas Haydelba, Yáñez Dayanis, Reyes Dilia, Salazar Gabriel
Universidad de Oriente, Núcleo de Sucre, Departamento de Química, Escuela de Ciencias, Cumaná, Estado Sucre 1601, Venezuela.
Rev Biol Trop. 2010 Jun;58(2):645-54.
Muricid species of P. pomum and C. brevifrons are of economic importance in the Caribbean. This study includes a comparative evaluation of fatty acid content in the total lipid composition of Phyllonotus pomum and Chicoreus brevifrons. Snail samples were collected during the rainy, dry and transition seasons, in Punta Arena, Sucre (Venezuela). Total lipids were extracted and the specific fatty acid contents were analyzed by gas chromatography. Lipid concentrations varied between 0.87 and 1.85%, with minimum and maximum values corresponding to C. brevifrons collected during rainy and dry seasons, respectively. In the case of total lipids, a high concentration of unsaturated fatty acids (57.21-70.05%) was observed followed by saturated fatty acids (20.33-31.94%), during all seasons. The polyunsaturated occurred in higher proportion among the unsaturated fatty acids, except for P. pomum which showed higher proportion of monounsaturated fatty acids (38.95%) during the transition season. The prevailing fatty acids were: C14:0, C16:0, C18:0, C20:1, C22:1 omega-11, C22:1 omega-9, C18:3 omega-3, C20:5 omega-3 and C22:6 omega-3, among which docosahexaenoic acid was the predominant polyunsaturated fatty acid, showing values between 4.62 and 33.11%. The presence of high concentrations of polyunsaturated fatty acids found in P. Pomum and C. brevifrons allow their recommendation for human consumption with appropriate resource utilization.
加勒比地区的苹果核螺属（Phyllonotus pomum）和短额蟹守螺（Chicoreus brevifrons）的骨螺科物种具有经济重要性。本研究对苹果核螺和短额蟹守螺总脂质组成中的脂肪酸含量进行了比较评估。在委内瑞拉苏克雷的蓬塔阿雷纳，于雨季、旱季和过渡季节采集了蜗牛样本。提取总脂质，并通过气相色谱分析特定脂肪酸含量。脂质浓度在0.87%至1.85%之间变化，最低和最高值分别对应于雨季和旱季采集的短额蟹守螺。就总脂质而言，在所有季节中均观察到高浓度的不饱和脂肪酸（57.21 - 70.05%），其次是饱和脂肪酸（20.33 - 31.94%）。除了在过渡季节苹果核螺显示出较高比例的单不饱和脂肪酸（38.95%）外，多不饱和脂肪酸在不饱和脂肪酸中所占比例更高。主要的脂肪酸有：C14:0、C16:0、C18:0、C20:1、C22:1 ω-11、C22:1 ω-9、C18:3 ω-3、C20:5 ω-3和C22:6 ω-3，其中二十二碳六烯酸是主要的多不饱和脂肪酸，含量在4.62%至33.11%之间。在苹果核螺和短额蟹守螺中发现的高浓度多不饱和脂肪酸使得它们在合理利用资源的情况下适合推荐给人类食用。
