有机栽培芹菜和普通栽培芹菜的矿物元素与营养物质含量比较研究  

Comparative Study of Minerals and Some Nutrients in Organic Celery and Traditional Celery

作　　者：生吉萍[1] 刘灿[1] 申琳[1] 

机构地区：[1]中国农业大学食品科学与营养工程学院,北京100083

出　　处：《光谱学与光谱分析》2009年第1期247-249,共3页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(30671471;30571291);中澳合作ACIAR项目(PHT/1999/081)资助

摘　　要：采用电感耦合等离子体-原子发射光谱(ICP-AES)法对来自有机生产体系和常规生产体系芹菜的Ca,Mg,K,Zn,Fe,Mn等必需元素和Cu,Cd和Pb等重金属元素含量进行了测定,同时对水分含量、总可溶性固形物、可溶性总糖、维生素C等含量进行了测定,发现有机栽培芹菜中K和Zn的含量较普通栽培芹菜分别显著高出70.22%和47.93%,差异显著(α=0.05);两种芹菜中Ca,Mg,Fe的含量差异不显著;有机栽培芹菜中Mn的含量较普通栽培芹菜显著低47.24%;两种芹菜中有害重金属Cu,Pb,Cd的含量差异不显著,且含量低于国标中规定的蔬菜Cu,Pb,Cd的含量;有机栽培芹菜与普通栽培芹菜水分含量、可溶性固形物含量无显著性差异,而有机栽培芹菜可溶性糖含量高出55.04%,维生素C的含量高出118.18%,差异显著。通过研究两种芹菜营养成分和矿物元素含量的不同,为有机栽培与常规栽培蔬菜的品质和安全性比较提供了有价值的参考。Conventional cultivation pattern,integrated cultivation pattern and organic cultivation pattern are three patterns in China,and organic produce from organic cultivation pattern is considered the best one in quality and safety.Some experiments have been done on the effect of different cultivation patterns on the vegetable quality,such as the contents of Vc,total sugar,and dissoluble solid,which show the organic cultivation pattern and integrated cultivation pattern excel the conventional cultivation pattern,but there are no data that show the difference in the contents of mineral elements.In the present study,the contents of nutritional elements such as Ca,Mg,K,Zn,Fe and Mn and heavy elements such as Cu,Cd and Pb in organic celery and traditional celery were analyzed by ICP-OES,and the contents of some nutritional ingradients such as water,total soluble solid,soluble sugar and asorbic acid were also investigated.The results showed that the contents of K and Zn in organic celery were respectively 70.22% and 47.93% higher than that in traditional celery,but there was no significant difference in the contents of Ca,Mg and Fe,while the content of Mn was 47.24% lower in organic celery（α=0.05）.The contents of Cu,Cd and Pb showed no significant difference between the two kinds of celery,and are lower than the national requirement.The content of water and total soluble solid showed no significant difference,whereas the contents of soluble sugar and asorbic acid in organic celery were 55.04% and 118.18% higher,respectively.The difference in the nutritional ingredients and mineral elements and safety status between the two kinds of celery provides academic data for the comparison between organic vegetables and traditional ones.

关 键 词：电感耦合等离子体-原子发射光谱 芹菜 矿物元素 营养成分 有机食品 食品安全 

分 类 号：O657.3[理学—分析化学]