1 Wisconsin Heat Awareness Day will be observed on Thursday, 13 June 2013. 2  Wisconsin, along with the rest of the nation, observes Lightning Awareness Week from 23 to 29 June 2013. 3  Since Wisconsin borders on two of the Great Lakes, rip currents can pose a hazard to swimmers.
Growth of obligate anaerobes. The mixture of necessary nutrients can be used as a liquid medium, or a solidifying agent can be added. Agar agar is a natural polysaccharide produced by marine algae and is the most commonly used solidifying agent added to media (end concentration usually 1.5 % w/v). If hydrolysis of the agar is suspected, a silica gel is used as a replacement solidifying agent.
Consideration should be given to the proximity to the product and whether air and surfaces might be in contact with a product or sensitive surfaces of container-closure systems. Such areas should be considered critical areas requiring more monitoring than non-product-contact areas.he type of medium, liquid or solid, that is used for sampling or quantitation of microorganisms in controlled environments will depend on the procedure and equipment used. A commonly used all-purpose medium is SoybeanâCasein Digest Agar when a solid medium is needed. Other media, liquid or solid, are listed below.