Effect of trace contaminants on cold soak filterability of canola biodiesel

Hongjian Lin, Darrin M. Haagenson, Dennis P. Wiesenborn, Scott W. Pryor, Rachel Brudvik

Research output: Chapter in Book/Report/Conference proceedingConference contribution


ASTM D 7501-09b, a cold soak filtration test (CSFT) was included in B100 specifications of ASTM D 6751-09, and brought new challenges to biodiesel producers and researchers investigating B100 quality. For a plant breeding program evaluating canola biodiesel quality traits, rapid assessment of biodiesel quality is important. Unfortunately, a limited amount of canola seed is available and obtaining the required volume of biodiesel (300 mL) for evaluating cold soak filterability is challenging. In order to develop a high throughput screening method of canola breeding lines for B100, assessing the cold soak filterability with reduced volumes of biodiesel is necessary. The primary objective of this study was to evaluate the impact of saturated monoglycerides, glycerin, and soap on cold soak filterability. The influence of saturated monoglycerides (0.04% to 0.46% w/w) on biodiesel precipitate formation was also evaluated. A regression model was generated to predict the filterability of biodiesel against the concentrations of trace contaminants. These experiments explored the possibility of using small scale biodiesel batches for scaling down the CSFT for canola breeding program for biodiesel production.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010
PublisherAmerican Society of Agricultural and Biological Engineers
Number of pages24
ISBN (Print)9781617388354
StatePublished - 2010

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2010, ASABE 2010

Bibliographical note

Funding Information:
The authors are thankful for the research support from the North Dakota Agricultural Experiment Station and the North Dakota Center of Excellence for Oilseed Development. Former research specialist Rachel Brudvik, and research assistants Mukesh Kumar and Katie McKinnon (NDSU Agricultural and Biological Engineering Department) are acknowledged for their technical support. The GC analysis provided by Leonard Cook, (USDA-ARS, Fargo, ND) is gratefully acknowledged. The authors are also thankful to Enrico Sassi (NDSU English Department) for providing scientific writing consulting, to Curt Doetkott (NDSU Information Technology Services) for providing statistical consulting.

Copyright 2015 Elsevier B.V., All rights reserved.


  • Biodiesel refining
  • Cold soak filterability (ASTM D 7501-09b)
  • Cold weather performance
  • Saturated monoglyerides (SMG)
  • Trace contaminants

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