| 摘要: |
| 分析了缘管浒苔(Enteromorpha linza)一般 营养成分、18种氨基酸及矿物质的含量,并与藻类海产品海带、紫菜、羊栖菜、裙带菜进行营养学对照评价。结果表明,缘管浒苔中主要成分是多糖类和粗纤维, 占藻体的63.9%。蛋白质含量27.0%,在几种海藻中较高。氨基酸组成均衡,必需氨基酸(EAA)占氨基酸总量(TAA)的38%,必需氨基酸与非必 需氨基酸的比值(EAA/NEAA)为0.62;氨基酸价78,高于海带(47)和紫菜(54),限制性氨基酸均为赖氨酸;呈味氨基酸占总量的53%;谷 氨酸、天氨酸、丙氨酸、亮氨酸等含量很高。脂肪量较低,为0.9%。矿物质和维生素含量丰富,其中Mg,Fe,Ca,K,Na,P,Zn等元素含量很高, 尤其Mg,Fe,Zn高于其它海藻;钙磷比值合理,为1.9;尤其有害元素As含量远远低于同水域中4种海藻,为2.98mg/kg。因此缘管浒苔是一种 低污染的高膳食纤维、高蛋白、低脂肪的富含维生素和矿物质的新型海洋食品。 |
| 关键词: 缘管浒苔(Enteromorpha linza) 营养学评价 分析 氨基酸 |
| DOI： |
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| 基金项目:温州市科学技术研究开发项目(S2003B006) |
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| Evaluation on nutrition components of Enteromorpha linza |
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| Abstract: |
| The nutritional components,18 kinds of amino acids and minerals of Enteromorpha linza were analyzed and compared with other seaweeds for evalution on nutrition such as Laminaria japonica, Porphyra haitanensis, Hizikia fusiformis and Undaria pinnatifida. The results indicate that the polysaccharides and crude fiber reach 63.9% of the total E. linza. The content of protein accounts for 27.0%, which is higher than in other seaweeds. The amino acid composition of protein is in balance with EAA/TAA 38% and the ratio of EAA to NEAA 0.62. In E. linza, L. japonica and P. haitanensis there are the same limiting amino acid Lysine(Lys) with the amino acid score 78 of E. linza and it is higher than those of L. japonica (47) and P. haitanensis (54). The contents of flavor development amino acids like Glutamic acid, Aspartic acid, Alanine, Leucine, Proline, Serine and Methionine reach 53% of the total amino acid. Crude fat (0.9%) is lower in E. linza. The minerals and vitamins are rich, especially the elements of Mg, Fe, Ca, K, Na, P, Zn, in which Mg, Fe, Zn are higher than in other seaweeds and the ratio of Ca to P(1.9) is appropriate; while toxic element as that is only 2.98 mg/kg exhibits the lowest content contrasted with the other seaweeds coming from the same sea area. So E. linza might be a new safe and healthy sea food which provides higher dietary fibre, higher protein, lower fat, richer vitamins and minerals. |
| Key words: Enteromorpha linza nutrient value evaluation analysis amino acid |
