坛紫菜新品系和传统养殖品系花水菜营养成分差异分析

Analysis of the difference of nutrient composition between a new strain and traditional cultured strain of Neoporphyra haitanensis

中文关键词:  坛紫菜、新品系“浙坛1号”、营养成分、重金属

英文关键词:Neoporphyra haitanensis  new strain Zhetan No.1  nutrients  heavy metals

中文摘要:

      目的 分析坛紫菜新品系和传统养殖品系花水菜营养成分。方法 本研究通过国标法对比分析了“浙坛1号”和传统养殖品系花水紫菜的基本营养成分、氨基酸、游离氨基酸、呈味氨基酸、呈味核苷酸、微量元素和重金属的组成及含量。结果 “浙坛1号”花水菜的粗蛋白质、灰分、粗纤维、总碳水化合物的高于传统养殖品系(P<0.05), 脂肪含量为(2.77±0.40) g/100 g。影响坛紫菜风味物质, 如甜味氨基酸、鲜味氨基酸、鲜味核苷酸, “浙坛1号”要高于传统养殖品系(P<0.05); 2个品系均检出3种单核苷酸, 5’-尿苷酸、5’-鸟苷酸和5’-肌苷酸, “浙坛1号”含量均高于传统养殖品系(P<0.05)。在矿物质检测中, 共测得11种矿物质元素, 包括4种常见元素和7种微量元素, 其中新品系“浙坛1号”有3种常见元素和5种微量元素要高于传统养殖品系(P<0.05)。对6种重金属进行测定, 无论是“浙坛1号”还是传统养殖品系重金属含量都在国家限量标准内。

英文摘要:

      Objective To analyze the nutritional components of new and traditional strains of Porphyra alba. Methods The composition and content of essential nutrients, amino acids, free amino acids, flavorable amino acids, flavorable nucleotides, trace elements and heavy metals of “Zhentan No.1” and traditional cultured laver were compared by national standard method. Results The results showed that the content of crude protein, ash, crude fiber and total carbohydrate of the new strain of Neoporphyra haitanensis, which were higher than those of the traditional cultured (P<0.05), the fat content was (2.77±0.40) g/100 g. The effect of flavor substances such as sweet amino acids, umami amino acids and umami nucleotides in “Zhetan No.1” was higher than that of traditional strains (P<0.05). The 3 kinds of single nucleotides, 5’-uridine monophosphate, 5’-guanosine monophosphate and 5’-inosine monophosphate, were detected in both strains, and the content of the new strains was higher than that of the traditional cultured (P<0.05). A total of 11 kinds of mineral elements were measured, including 4 kinds of common elements and 7 kinds of trace elements, the new strain “Zhetan No.1” had 3 kinds of common elements and 5 kinds of trace elements, which was higher than that of the traditional strain (P<0.05). The 6 kinds of heavy metals were determined. The heavy metal content of both new and traditional aquaculture strain were less than within the national limit standard. Conclusion Experiments have proved that the new strain of Neoporphyra haitanensis has high nutritional value, high food safety and high development prospects.