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<p>Bigels are biphasic gel systems with improved texture, stability, and controlled release of bioactive compounds. Integrating prebiotics into bigels enhances their functionality, promoting gut health. Psyllium husk (obtained from <i>Plantago ovata</i>) is an excellent prebiotic and hydrogelator due to its better gel-forming and good water-holding capacity. The aim of this study was to investigate the fabrication and characterization of novel prebiotic bigel systems incorporating psyllium husk powder (PHP, 2% w/v) and Agar (AG, 2% w/v) in hydrogel, while using beeswax (BW, 6% w/v) as oleogelator along with soybean oil (SO). The study evaluates the physicochemical, microstructural, rheological, functional, thermal and prebiotic properties of these bigel systems. The hydrogel (H) and oleogel (O) were combined in varying ratios (25&#xa0;H:75O, 50&#xa0;H:50O, 75&#xa0;H:25O) to form three bigel systems. The bigels were also evaluated for its drug release and delivery properties with curcumin. The better thermal stability was confirmed with both hydrogel and oleogel components. The prebiotic activity score of psyllium husk-based bigel was assessed based on <i>L. rhamnosus</i> GG growth from an initial log CFU/mL of 8.75 ± 0.04 to 9.74 ± 0.04 at 24&#xa0;h and the inhibition of <i>E. coli</i>. The curcumin incorporation efficiency of 98.69 ± 0.42% was obtained in formulated bigel system. Results showed that bigel systems had favorable properties and stability over four weeks. The novel prebiotic bigel systems offer potential for functional food applications, providing enhanced gut health and bioactive compound delivery.</p> Graphical Abstract <p></p>

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Fabrication and characterization of prebiotic bigel systems based on psyllium husk (Plantago ovata) in hydrogel along with beewax and soyabean oil as oleogelator for food application

  • 期刊论文

  • 发表日期：

    2026年2月21日

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  • Nadiminti Chandana Sri Sai,
  • Niveditha Asaithambi,
  • Falguni Patra,
  • Raj Kumar Duary

摘要

Bigels are biphasic gel systems with improved texture, stability, and controlled release of bioactive compounds. Integrating prebiotics into bigels enhances their functionality, promoting gut health. Psyllium husk (obtained from Plantago ovata) is an excellent prebiotic and hydrogelator due to its better gel-forming and good water-holding capacity. The aim of this study was to investigate the fabrication and characterization of novel prebiotic bigel systems incorporating psyllium husk powder (PHP, 2% w/v) and Agar (AG, 2% w/v) in hydrogel, while using beeswax (BW, 6% w/v) as oleogelator along with soybean oil (SO). The study evaluates the physicochemical, microstructural, rheological, functional, thermal and prebiotic properties of these bigel systems. The hydrogel (H) and oleogel (O) were combined in varying ratios (25 H:75O, 50 H:50O, 75 H:25O) to form three bigel systems. The bigels were also evaluated for its drug release and delivery properties with curcumin. The better thermal stability was confirmed with both hydrogel and oleogel components. The prebiotic activity score of psyllium husk-based bigel was assessed based on L. rhamnosus GG growth from an initial log CFU/mL of 8.75 ± 0.04 to 9.74 ± 0.04 at 24 h and the inhibition of E. coli. The curcumin incorporation efficiency of 98.69 ± 0.42% was obtained in formulated bigel system. Results showed that bigel systems had favorable properties and stability over four weeks. The novel prebiotic bigel systems offer potential for functional food applications, providing enhanced gut health and bioactive compound delivery.

Graphical Abstract