mencapai jumlah sel hidup 9.5 log cfu/ml dalam waktu 8 jam pada inulin, sedangkan membutuhkan 12 jam inkubasi pada FOS. Hasil analisis statistik menunjukkan jumlah L. casei strain Shirota dalam prebiotik inulin tidak berbeda nyata dengan FOS. Pertumbuhan tertinggi pada prebiotik FOS ditunjukkan oleh L. plantarum IS-10506 dengan jumlah sel hidup sebesar 9.5 log cfu/ml. Jumlah sel hidup L. casei strain Shirota adalah 9.2 log cfu/ml. E. faecium IS-27526 menunjukkan pertumbuhan terendah pada FOS dibanding probiotik lain, yaitu 8.8 log cfu/ml pada waktu inkubasi 8 jam dan 8.5 log cfu/ml pada jam ke-12.
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