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通过走访深圳主要农贸市场和各大超市,共采集常见食物(如谷类及谷类产品、蔬菜、豆制品和肉类等)共340批次,按照GB/T 5009.6—2003“食品中脂肪的测定”第一法和微波消解-电感耦合等离子体发射光谱法,对样品中的脂肪、钠进行测定,并结合深圳居民每日膳食摄入量,对深圳居民膳食中脂肪、钠的日均摄入量进行估算。结果显示,深圳市居民脂肪摄入的主要来源为植物油和猪肉,脂肪日均摄入量为102 g,钠摄入的主要来源为食盐、酱及酱油,日均钠的摄入量为4 737 mg,均高于《中国居民膳食营养素参考摄入量》(2013版)中建议的RNI/AI值。建议深圳居民适当减少高脂肪、高钠食物的摄入,优化膳食结构,预防和控制营养相关的慢性病。
A total of 340 batches of common foods (such as cereals and cereals, vegetables, soy products and meat) were collected by visiting the major farmers’ markets and major supermarkets in Shenzhen. According to GB / T 5009.6-2003 “Determination of fat in food ”The first method and microwave digestion - inductively coupled plasma-optical emission spectrometry, determination of fat in the sample, sodium, combined with daily intake of Shenzhen residents diet, Shenzhen residents dietary fat, sodium daily average photo Intakes were estimated. The results showed that the main sources of fat intake in Shenzhen were vegetable oil and pork, the daily intake of fat was 102 g, the main sources of sodium intake were salt, sauce and soy sauce, and the daily sodium intake was 4 737 mg, both higher than the RNI / AI values suggested in “Chinese Dietary Reference Intakes for Peoples” (2013 version). Shenzhen residents are advised to properly reduce high-fat, high sodium intake of food, optimize the diet, prevent and control nutrition-related chronic diseases.