B12Yeast -- a Blend of Vitamin B12 and Yeast Extract

Vitamin B₁₂ and yeast extract have been used at many bioremediation sites to stimulate microbial activity with micronutrients, vitamins and other cofactors that are not commonly found in simple substrates such as emulsified vegetable oil (EVO).  Simple substrate addition at most sites will result in good microbial activity.  At sites where micronutrients and vitamins are beneficial the amount needed relative to the substrate may vary.  To keep production costs low and pass savings to our customers RNAS prefers to manufacture EVO in 100,000 pound or larger production lots.  We have always maintained an inventory of our two primary formulations for quick delivery.  To answer the growing demand for EVO-micronutrient blends and to provide for flexibility in adding micronutrients we have developed B₁₂Yeast, an easy to use vitamin B₁₂ and yeast extract product containing 55 mg/L of vitamin B₁₂ and 37.5% yeast extract.  By adding B₁₂Yeast to Newman Zone at the time of packaging, we can easily make custom blends with no additional charge above the cost of materials.  B₁₂Yeast is pasteurized and kept frozen until needed which ensures a virtually unlimited shelf-life. 

 

B₁₂Yeast is currently priced at $6.50/pound and is packaged in 20 pound bags, two bags to a box, for forty pounds of net product.  A commonly used ratio of one pound of yeast extract for every 30 pounds of vegetable oil would require two boxes of B₁₂Yeast for one 2,100 pound tote of Newman Zone.  At $6.50/pound, 80 pounds of B₁₂Yeast would add $520 to the cost of a tote of emulsion or about $0.25/pound. 

 

For customers who want to use other substrates or make their own blends in the field we can ship B₁₂Yeast directly to the site.  B₁₂Yeast is a low-viscosity liquid.  Anyone who has tried to field blend dry yeast extract powder into water knows what a hassle it is because of the dust and the hydrophobic nature of the dry yeast extract powder.  Concentrated wet yeast extract materials containing 60% or more solids can be used to eliminate the dust, but mixing a peanut butter textured paste with water is no picnic either.  Blending a 37.5% yeast extract content results in a low viscosity mix that pours easily and can be mixed into water or substrate blends with gentle stirring.