Published: Jan 28, 2014 10:57 AM EST

DENVER (AP) - Two Colorado cantaloupe farmers who pleaded guilty to charges stemming from a deadly listeria outbreak in 2011 are set to be sentenced.
    
Brothers Eric and Ryan Jensen are scheduled to appear in federal court Tuesday in Denver. They pleaded guilty last year to misdemeanor counts of introducing adulterated food into interstate commerce, which carry penalties of up to six years in prison and $1.5 million in fines.
    
The outbreak caused 33 deaths and sickened 147 people in 28 states.
    
The Jensens have asked for probation, saying jail time is excessive because justice has been served with the imposition of new food guidelines.
    
Prosecutors are also asking for probation, in part because the brothers met with the families of many of the victims and assisted in the investigation.

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