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首页> 外文期刊>Food Science & Nutrition >Chemical composition of the giant red sea cucumber, Parastichopus californicus, commercially harvested in Alaska
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Chemical composition of the giant red sea cucumber, Parastichopus californicus, commercially harvested in Alaska

机译：在阿拉斯加商业收获的巨型红海参Parastichopus californicus的化学成分

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AbstractGiant red sea cucumbers, Parastichopus californicus, are commercially harvested in the U.S. Pacific Northwest; however, the nutritional and chemical properties of its edible muscle bands and body wall have not been fully elucidated. In particular are the fatty acid profiles of P. californicus tissues, which have not been documented. Sea cucumbers were delivered live and muscle bands and body wall freeze dried, vacuum packed, and stored at −30°C until analyzed. Proximate composition of freeze-dried tissues varied greatly with muscle bands being composed of 68% protein, 12% ash, 9% carbohydrate, and 5% lipids, while the body wall was composed of 47% protein, 26% ash, 15% carbohydrate, and 8% lipids. The hydroxyproline, proline, and glycine contents of the body wall were much higher than those in muscle bands, consistent with the larger amount of connective tissue. Calcium, magnesium, sodium, and iron contents were higher in the body wall than those in muscle bands, whereas the opposite was observed for zinc content. Total long-chain n-3 fatty acid contents were 19% and 32% of total fatty acids in body wall and muscle bands, respectively. Muscle bands had higher content of eicosapentaenoic acid (20:5n-3) than body wall at 22.6% and 12.3%, respectively. High content of arachidonic acid (20:4n-6) was recorded in both body wall (7.1%) and muscle bands (9.9%). Overall, the fatty acid profiles of body wall and muscle bands of P. californicus resemble those described for other species; however, the distribution and occurrence of certain fatty acids is unique to P. californicus, being representative of the fatty acid composition of temperate-polar marine organisms. The chemical characterization of freeze-dried edible tissues from P. californicus demonstrated that these products have valuable nutritional properties. The body wall, a food product of lower market value than muscle bands, could be better utilized for nutraceutical and pharmaceutical applications.
机译：摘要巨型红海参Parastichopus californicus在美国西北太平洋地区进行商业收获;然而，其可食用的肌肉带和体壁的营养和化学特性尚未得到充分阐明。特别是未记录的加州疟原虫组织的脂肪酸谱。运送活的海参，冷冻并干燥肌肉带和体壁，真空包装，并于-30°C储存直至分析。冻干组织的主要成分差异很大，肌肉带由68％的蛋白质，12％的灰分，9％的碳水化合物和5％的脂质组成，而体壁由47％的蛋白质，26％的灰分，15％的碳水化合物组成和8％的脂质。体壁中羟脯氨酸，脯氨酸和甘氨酸的含量远高于肌肉带中的含量，这与结缔组织的数量较大相符。体壁中的钙，镁，钠和铁含量高于肌肉带中的钙，而锌含量则相反。长链n-3脂肪酸的总含量分别为体壁和肌肉条带中总脂肪酸的19％和32％。肌肉带中的二十碳五烯酸（20：5n-3）含量高于体壁，分别为22.6％和12.3％。在体壁（7.1％）和肌带（9.9％）中均记录到高含量的花生四烯酸（20：4n-6）。总体而言，加利福尼亚假单胞菌的体壁和肌肉条带的脂肪酸分布与其他物种相似。但是，某些脂肪酸的分布和发生是加利福尼亚假单胞菌所独有的，代表了温带极性海洋生物的脂肪酸组成。加利福尼亚假单胞菌的冻干可食用组织的化学特性表明，这些产品具有重要的营养特性。人体壁是一种市场价值低于肌肉带的食品，可以更好地用于营养保健和制药应用。

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