| http://www.w3.org/ns/prov#value | - Alternatively, or in addition, the solution can comprise minerals, including ammonium phosphate and/or additional compounds, and it can further, or alternatively, comprise a complex nutrient such as yeast extract (YE) or inexpensive waste products containing similiar complex nutrients such as those from fermentation plants, distilleries, breweries or bakeries, among others.
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