Can anyone help?



"john" <j.l.owens@blueyonder.co.uk> wrote in message
news:yFPae.145844$Nr5.122230@fe2.news.blueyonder.co.uk...[color=blue]
> Hi all,
>
> Im doing research on diacetyl whereby I am going to build a model in
> matlab to predict whether the fermentation is bad based on the first 48-60
> hours using past datasets . I was wondering if anyone could send me
> information regarding diacetyl or past work done on this subject. What is
> diacetyl affected by during the course of fermentation... ie. I have data
> on yeast generation number, time, temperature, specific gravity and VDK
> (diacetyl) for 43 bach fermentations. Can anyone tell what links are
> between Specific gravity and Diacetyl concentration.
>
> I need to plot a graph of 'Time taken for diacetyl to be in spec. (i.e
> below value of 0.1)' vs. 'steepest slope of SG curve'). Any idea on what I
> should expect?
>
> John
>[/color]