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Production and prebiotic properties of oligofructans from sugarcane juice fermentation by Bacillus subtilis TISTR 001
Boontiwa Ninchan1, Chanyanuch Noidee1
1Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok, 10900 Thailand.
Abstract:
Oligofructans are potential biological substances that due to their distinctive properties have a positive health-promoting effect. This research aimed to produce oligofructans using sugarcane juice fermentation with Bacillus subtilis TISTR 001 and to study the prebiotic properties in vitro. The results showed that the maximum total oligofructans in the form of free fructose was 2.57% (w/v) at the 84th hour of fermentation with 0.17 g/g reducing sugar and a production yield of 0.031 g/L/h and maximum levansucrase activity of 1.57 × 106 U/mL at that time. The oligofructans contained in the fermented juice had potential functional ingredients that exhibited prebiotic properties that could resist the digestion of enzymes in the gastrointestinal tract under in vitro conditions with digestion of only 6.92%. In addition, the fermented juice promoted the growth of prebiotics, especially Bifidobacterium bifidum TISTR 2129 and inhibited the growth of pathogens using both single culturing and co-culturing with probiotics.
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