The MetWare project provides applications, databases and workflows for metabolomics. The MetWare project is a collaboration between several metabolomics groups in the Netherlands and Germany.
The work involving Taverna workflows is done by Steffen Neumanns group (Bioinformatics & Mass Spectrometry).
They developed a Web-based player of Taverna workflows and also have uploaded their workflows on myExperiment at http://www.myexperiment.org/users/937/workflows.
Software project page can be found at Sorceforge.