USDA Database for the Proanthocyanidin Content of Selected Foods, Release 2 (2015)

The database contains values for 283 food items for the following proanthocyanidins groups:

Dimers
Trimers
4-6 mers (tetramers, pentamers and hexamers)
7-10 mers (heptamers, octamers, nonamers and decamers
Polymers (DP>10)

Resources in this dataset:Resource Title: READ ME - USDA Database for the Proanthocyanidin Content of Selected Foods. File Name: PA02.pdfResource Description: Information regarding the documentation, data sources, data management, data quality evaluation, aggregation and format, sources of data, and references cited.Resource Software Recommended: Adobe Acrobat Reader,url: http://www.adobe.com/prodindex/acrobat/readstep.html Resource Title: Data Dictionary. File Name: PA02_DD.pdfResource Title: PA02.accdb. File Name: PA02.zipResource Description: This file contains the Proanthocyanidin Database imported into a MS Access database version 2007 or later. The file structure is the same as that of the USDA National Nutrient Database for Standard Reference.

该数据库收录了283种食品中以下儿茶素组分的数值：

二聚体
三聚体
4-6个单体（包括四聚体、五聚体和六聚体）
7-10个单体（包括七聚体、八聚体、九聚体和十聚体）
聚合物（DP>10）

本数据集包含以下资源：
资源标题：READ ME - 美国农业部所选食品中儿茶素含量数据库。文件名：PA02.pdf
资源描述：包含关于文档编制、数据来源、数据管理、数据质量评估、数据聚合和格式、数据来源以及引用文献的信息。
推荐软件：Adobe Acrobat Reader，网址：http://www.adobe.com/prodindex/acrobat/readstep.html
资源标题：数据字典。文件名：PA02_DD.pdf
资源标题：PA02.accdb。文件名：PA02.zip
资源描述：此文件包含导入至Microsoft Access 2007或更高版本数据库的儿茶素数据库。文件结构与美国农业部国家营养素参考数据库相同。