Snomax INSs were present in the low-density isolate with an average recovery of 25% (median = 22%, 25 th -75 th percentile = 18% -37%) (Figure and Figure ). The average % recovery of Snomax INS in the mixture was equal to that of Snomax INS from a suspension of just Snomax (Figure ), suggesting that this density gradient centrifugation technique is able to recover organic INSs in a mixture with a comparable efficiency to organic INSs in a lone suspension.