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目的分析中山市内种植及销售的各种干豆类、薯类、谷物、蔬菜及水果样品的营养成分,为中国食物成分表的修订提供参考及基础数据。方法通过整群随机抽样法,对中山市内种植及销售的各种干豆类、薯类、谷物、蔬菜及水果约240份样品进行营养成分分析。分析指标包括矿物质(钾、钠、钙、铁、锌、磷)、蛋白质、脂肪、水分、灰分、脂肪酸、膳食纤维、碳水化合物等。结果该研究涉及的5大类别农产品可食部分的营养价值与《中国食物成分表》相比大部分检测数据范围一致,但矿物质元素含量差异较大,薯类中的番薯,叶菜类中芥菜、菜心、通菜钾含量略高于食物成分表上的数据。其中芥菜、通菜钾含量分别达到313、284 mg/100 g。结论分析不同地区的食物成分有利于补充和完善现行的食物成分表,更好地为有关营养政策的制定与实施提供依据,为各项食品贸易的开展提供准确的数据。
Objective To analyze the nutritional contents of various kinds of dried beans, yam, cereals, vegetables and fruits grown and sold in Zhongshan City, and provide reference and basic data for the revision of the table of Chinese food ingredients. Methods A total of 240 samples of dried legumes, yam, cereals, vegetables and fruits grown and sold in Zhongshan City were analyzed by cluster random sampling method. Analytical indicators include minerals (potassium, sodium, calcium, iron, zinc, phosphorus), protein, fat, moisture, ash, fatty acids, dietary fiber, carbohydrates and so on. Results The nutritional value of the edible parts of the five major categories of agricultural products involved in the study was consistent with that of most of the test data of the China Food Ingredient List, but the content of mineral elements was quite different. The sweet potato and leafy vegetables in the potato category Brassica juncea, Brassica parachinensis, Potassium content slightly above the food composition table data. Among them, the content of potassium in mustard and tincture reached 313,284 mg / 100 g respectively. Conclusions Analyzing the food composition in different regions is conducive to supplementing and perfecting the existing food composition table and providing a basis for formulating and implementing relevant nutrition policies and providing accurate data for various food trade activities.