季节对食用蟹（Cancer pagurus）的化学成分和营养价值的影响。

Effect of season on the chemical composition and nutritional quality of the edible crab Cancer pagurus.

机构信息

Research Unit of Upgrading of Fishery and Aquaculture Products (U-VPPA), National Institute of Biological Resources (INRB I.P./L-IPIMAR), Avenida de Brasilia, 1449-006 Lisboa, Portugal.

出版信息

J Agric Food Chem. 2009 Nov 25;57(22):10814-24. doi: 10.1021/jf9025597.

DOI:10.1021/jf9025597

PMID:19845352

Abstract

Cancer pagurus is most appreciated in southern Europe for its muscle and brown meat content. In Portugal, consumption occurs mostly in summer and at Christmas. In this study the seasonal nutritional quality of edible tissues of female and male C. pagurus was determined. Tissue composition was affected by season and sex. All tissues had a well-balanced essential amino acid composition. Muscle and gonads of females had n-3/n-6 ratios in the range of the usual recommended values, and all tissues had PUFA/SFA above the recommended level. Autumn was the season with the highest brown meat yield, total essential amino acids (muscle), taurine (all tissues), EPA (male gonads), and n-3/n-6 ratio (gonads). However, it was also the season with the highest fat content and cholesterol concentration in ovaries. Therefore, people with restricted diets should moderate the consumption of ovaries in autumn. The remaining tissues pose no risks with respect to their proximate chemical composition.

摘要

欧洲南方国家最欣赏欧洲蓝龙虾的肌肉和棕色肉含量。在葡萄牙，这种龙虾的消费主要集中在夏季和圣诞节期间。本研究旨在确定雌性和雄性欧洲蓝龙虾可食用组织的季节性营养品质。组织成分受到季节和性别的影响。所有组织的必需氨基酸组成都很均衡。雌性的肌肉和性腺中的 n-3/n-6 比例处于通常建议的范围内，所有组织的多不饱和脂肪酸/饱和脂肪酸比例都高于建议水平。秋季是棕色肉产量最高的季节，肌肉中的总必需氨基酸、牛磺酸（所有组织）、二十碳五烯酸（雄虾性腺）和 n-3/n-6 比例（雌虾性腺）都达到最高水平。然而，这也是卵巢中脂肪和胆固醇浓度最高的季节。因此，饮食受限的人应在秋季适量食用卵巢。其余组织的基本化学成分不会带来风险。