梨花营养成分及特性分析

目的分析评价梨花的营养成分。方法按照食品安全国家标准中测定营养成分的规定,测定梨花中的蛋白质、碳水化合物、矿物质、维生素等营养成分;利用乙醇回流提取, NaNO2-Al(NO3)3-NaOH显色法测定总黄酮含量;利用石油醚回流提取, Liebennann-Burchard显色法测定总甾体含量。结果梨花含有丰富的蛋白质、碳水化合物、矿物质、维生素等营养成分。尤其是矿物质K(151.97 mg/100 g)、VC(3.117 mg/100 g)、赖氨酸(130.45 mg/100 g)以及黄铜(1.055 g/100 g)和甾体类化合物(0.041 g/100 g)等生物活性物质含量较多。结论梨花是富含营养物质的理想天然保健食品。

Analysis on nutritional components and characteristics of pear flower

Objective To analyze and evaluate the nutritional components of pear flower. Methods According to the national food safety standards in the determination of nutrient regulation, determination of pear flower of proteins, carbohydrates, minerals, vitamins and other nutrients .The content of total flavonoids was determined by ethanol reflux extraction and NaNO2-Al(NO3)3-NaOH colorimetry. The total carcass content was determined by Liebennann-Burchard colorimetry using petroleum ether reflux extraction. Results Pear flower was rich in protein, carbohydrate, minerals, vitamins and other nutrients. In particular, minerals K(151.97 mg/100 g), VC(3.117 mg/100 g), lysine (130.45 mg/100 g), brass (1.055 g/100 g), steroidal compounds (0.041 g/100 g) and other bioactive substances were very abundant. Conclusion Pear flower is an ideal natural health food rich in nutrients.