Kualitas Susu Cair Pasca Pasteurisasi Setelah Penambahan Sirup Oligofruktosa Umbi Talas Kimpul (Xanthosoma sagittifolium Schott.)

Abstract: One alternative of fresh milk preservation is by adding sugar that derived from the hydrolysis process of blue taro  tuber.  The aim of  this  study  was  to  examine  the  quality  of  fresh  milk  after  the  addition  of oligofructose syrup. The study was carried out from April to June in 2013. Based on the ANOVA test, it was  known  that  the  concentration  of  oligofructose  syrup  influenced  the  increase  of  proximately  test, total number of  bacteria,  and reduction  time of milk. The protein content of milk  increased  to  0.25% after  being  added  by  oligofructose  syrup  with  20%  concentration,  and  then  it  became  3.95  %.  The lactose  content  increased  to 2.05%  after being added by oligofructose  syrup with 40% concentration, and then it become 6%. The highest increment of milk acidity occurred over milk by adding 40% of oligofructose  syrup.  Furthermore, 40% milk fat and oligofructose  syrup decreased  to  2.40%, which it became  2%.  Total  number  of  milk  bacteria  decreased  to  23x103 CFU/ml  after  being  added  by  40% oligofructose  syrup,  but  then  it become 26x103 CFU/ml. In this study,  no  indication  of  coliform  was found  in  all milk samples.  Best time of reducing bacteria occured  over milk added 40% syrup is 634 minutes.
Keywords: Xanthosoma sagittifolium, oligofructose, milk quality
Penulis: Mistia Ningsih, Tri Rima Setyawati, Mukarlina
Kode Jurnal: jpbiologidd140317

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