| http://www.w3.org/ns/prov#value | - at least one of R1 and R4 are straight chain or branched, cyclic, alkyl, alkenyl, alkynyl or aryl groups having from about 8 to about 24 carbon atoms; R7 and R8 are independently hydrogen or a carbohydrate, preferably hydrogen; and l is an integer from 1 to about 4; wherein
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