Fermentation properties and potential prebiotic activity of HCl-breadfruit resistant starch type III by Lactobacillus plantarum ATCC 13649 and L. brevis ATCC 8287
2022
Napisah H. | Siti Nuriah M. N. | Zarinah Z. | Raja Arief Deli R. N.
HCl-breadfruit resistant starch type III (HCl-BFRS3) is a type of resistant starch (RS) produced from breadfruit (Artocarpus altilis). Generally, RS is the non-digestible starch fraction that resists digestion in the gastrointestinal tract, and is completely or partially fermented in the colon which gives it beneficial physiological effects as a potential prebiotic. The present work assessed the fermentation properties of HCl-BFRS3 produced by local underutilised food crops. HCl-BFRS3 with 57.86% of RS content was analsyed for its fermentation properties. In vitro fermentability of HCl-BFRS3 with pure cultures of lactic acid bacteria, LAB (Lactobacillus plantarum ATCC 13649 and L. brevis ATCC 8287), was studied. Their growth patterns, pH changes, and prebiotic activity score (PAS) along with four other different carbohydrate sources (glucose, inulin, fibersol-2, and breadfruit starch) and a control sample against Escherichia coli ATCC 11775 was evaluated after 72 h of fermentation. It was found that HCl-BFRS3 selectively supported the growth of both lactobacilli and E. coli ATCC 11775, in the range of 6.21 to 9.20 log₁₀ CFU/mL. HCl-BFRS3 also decreased the pH from the fermentation by L. plantarum ATCC 13649 and L. brevis ATCC 8287 after 24 h. The highest PAS was obtained by L. plantarum ATCC 13649 grown on HCl-BFRS3 (+1.69) as compared to inulin and fibersol-2. In conclusion, HCl-BFRS3 could be exploited as a prebiotic that benefits human health. Nevertheless, further assessment on the suitability of HCl-BFRS3 as a prebiotic material needs to be carried out.
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