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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Porphyra - the economic seaweed as a new experimental system
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Porphyra - the economic seaweed as a new experimental system

机译：紫菜-一种作为新实验系统的经济海藻

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Marine algae, popularly known as seaweeds, are sources of food, fodder, fertilizer, medicine and chemicals. World trade in seaweed and its products was valued at US 50 million dollar in 1970, US 250 million dollar in 1990 and US 6.2 billion dollar in 1999 (refs 1 and 2). About 20,000 marine algae species are distributed throughout the world, out of which only 221 species are utilized commercially. These include 145 species for food and 110 species for phycocolloid production. Porphyra (Bangiales, Rhodophyta) popularly known as 'Nod' in Japan, 'Kim' in Korea and 'Zicai' in China has an annual value of over US 1.8 billion dollar. Porphyra is primarily used as food, wrapped around the Japanese delicacy 'Sushi' which consists of roasted blades, raw fish, rice and other ingredients. The alga is not only delicious but also contains high levels of protein (25-50 percent), vitamins (higher vitamin C than in oranges), trace minerals and dietary fibres. The plant contains nearly 17 types of free amino acids, including taurine which controls blood cholesterol levels5. The alga is a preferred source of the red pigment #gamma#-phycoerythrin, which is utilized as a fluorescent 'tag' in the medical diagnostic industry. Porphyra has been cultivated for the past hundred years in Japan and today it is one of the largest aquaculture industries in Japan, Korea and China. Because of its economic importance and other health benefits, Porphyra cultivation is now being expanded to
机译：海藻，通常被称为海藻，是食物，饲料，肥料，药物和化学药品的来源。海藻及其产品的世界贸易价值在1970年为5000万美元，在1990年为2.5亿美元，在1999年为62亿美元（参考文献1和2）。全世界大约有20,000种海藻物种分布，其中只有221种被商业利用。其中包括用于食物的145种和用于生产胶体胶的110种。紫菜（Bangiales，Rhodophyta）在日本俗称“ Nod”，在韩国俗称“ Kim”，在中国俗称“紫菜”，年产值超过18亿美元。紫菜主要用作食品，包裹在日本美味的“寿司”中，其中包括烤刀片，生鱼，米饭和其他成分。海藻不仅美味，而且还含有高水平的蛋白质（25-50％），维生素（比橙子中的维生素C高），微量矿物质和膳食纤维。该植物含有近17种游离氨基酸，包括控制血液中胆固醇水平的牛磺酸5。藻类是红色颜料＃γ＃-藻红蛋白的优选来源，其在医学诊断行业中用作荧光“标签”。紫菜在日本已有近百年的历史，如今已成为日本，韩国和中国最大的水产养殖产业之一。由于其经济重要性和其他健康益处，紫菜栽培技术现已扩展到

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