U.S. flag

An official website of the United States government

Ag Data Commons migration begins October 18, 2023

The Ag Data Commons is migrating to a new platform – an institutional portal on Figshare. Starting October 18 the current system will be available for search and download only. Submissions will resume after the launch of our portal on Figshare in November. Stay tuned for details!

Other Access

The information on this page (the dataset metadata) is also available in these formats:


via the DKAN API

Data Extent

Elderberry syrup buffer modeling data

Data for the article: "Modeling the Formulation pH of Elderberry Syrup with multiple weak acids", https://doi.org/10.1111/1750-3841.16664. To develop methods to assess the influence of the ingredients of an acidified elderberry syrup on product pH., a total of 16 model syrup formulations containing elderberry juice with mixed acids (malic, acetic, and ascorbic) and having pH values between 3 and 4 were prepared. The pH values of the formulations were compared to predicted values from combined buffer models of the individual ingredients. Regression analysis indicated an excellent fit of the observed and predicted pH data, with a root mean square error of 0.076 pH units. The results indicated that buffer models may be useful for in silico estimates of how the ingredients in acid and acidified foods may influence pH, thus aiding in product development and safety assessments.

Resources in this dataset:

  • Resource Title: Elderberry syrup buffer modeling data
    File Name: Tables S1 and S2 Buffer modeling data.xlsx
    Resource Description: The concentration and pK values for each buffer of a mixture of elderberry syrup ingredients. The formulation mixtures are described in the article "Modeling the Formulation pH of Elderberry Syrup with multiple weak acids" https://doi.org/10.1111/1750-3841.16664.
Release Date
Not Planned
Spatial / Geographical Coverage Area
POINT (-78.67798268795 35.783846152338)
Ag Data Commons
Spatial / Geographical Coverage Location
USDA/ARS, 322 Schaub Hall, box 7624 NC State University, Raleigh, NC 27695-7624
Temporal Coverage
January 27, 2023
Contact Name
Breidt, Fred
Contact Email
Public Access Level
Program Code
005:040 - Department of Agriculture - National Research
Bureau Code
005:18 - Agricultural Research Service