Phytosterol Profiles of Common Foods and Estimated Natural Intake of Different Structures and Forms in China
文献类型： 外文期刊
作者： Wang, Mengmeng 1 ; Huang, Weisu 2 ; Hu, Yinzhou 1 ; Zhang, Liangxiao 3 ; Shao, Yafang 4 ; Wang, Meng 5 ; Zhang, Fang 6 ;
作者机构： 1.Zhejiang Univ, Coll Biosyst Engn & Food Sci,Minist Agr,Key Lab A, Fuli Inst Food Sci,Key Lab Agroprod Postharvest H, Natl Engn Lab Intelligent Food Technol & Equipmen, Hangzhou 310058, Zhejiang, Peoples R China
2.Zhejiang Econ & Trade Polytech, Dept Appl Technol, Hangzhou 310018, Zhejiang, Peoples R China
3.Chinese Acad Agr Sci, Oil Crops Res Inst, Wuhan 430062, Hubei, Peoples R China
4.China Natl Rice Res Inst, Hangzhou 310006, Zhejiang, Peoples R China
5.Beijing Res Ctr Agr Stand & Testing, Beijing 100097, Peoples R China
6.Beijing Univ Technol, Beijing 100124, Peoples R China
7.Southwest Univ, Chongqing 400715, Peoples R China
8.China Agr Univ, Beijing 100083, Peoples R China
9.Chinese Acad Trop Agr Sci, Haikou 571101, Hainan, Peoples R China
10.Chinese Acad Agr Sci, Inst Agroprod Proc Sci & Technol, Beijing 100193, Peoples R China
11.Key Lab Food Qual & Safety Jiangsu Prov, Nanjing 210014, Jiangsu, Peoples R China
12.Chinese Acad Agr Sci, Res Inst Pomol, Xingcheng 125100, Peoples R China
关键词： phytosterols; profile; dietary intake; beta-sitosterol
期刊名称：JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY （ 影响因子：5.279； 五年影响因子：5.269 ）
ISSN： 0021-8561
年卷期： 2018 年 66 卷 11 期
页码：
收录情况： SCI
摘要： Phytosterols are well-known for their cholesterol-lowering effects, and the structures and forms of phytosterols affect their bioactivity. We aimed to illustrate the phytosterol profiles in common foods and estimate their natural intake in five geographical regions and among different age groups in China. In total, 12 phytosterols in free and esterified forms of 119 foods from five regions across China were examined using gas chromatography-mass spectrometry. Then, the dietary intake of phytosterols was calculated combined with the dietary foods intake data of Chinese people. The total phytosterol content was highest in vegetable oils (150.4-1230.9 mg/100 g), followed by legumes (129.6-275.6 mg/100 g), nuts (18.9-255.2 mg/100 g), and cereals (11.9-93.8 mg/100 g). Vegetables and fruits contained lower contents of total phytosterols. Phytosterols were mainly esterified in most common foods except in nuts. The predominant phytosterols were beta-sitosterol, campesterol, and stigmasterol, all of which belonged to plant sterols and 4-desmethylsterols. Total phytosterol intake varied across different regions, ranging between 257.7 and 473.7 mg/standard-person (sp)/day, with the highest intake in Beijing, followed by Hangzhou, Wuhan, Chongqing, and Guangzhou. However, phytosterol proportion was similar across regions, with beta-sitosterol accounting for 46.5-50.3% of the natural intake. Phytosterol intake was mainly constituted by plant sterols and 4-desmethylsterols in esterified form (61.9-74.6%). At the age of 2-70 years, phytosterol intake ranged from 154.3 mg/day to 348.0 mg/day in the national scale.
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