This study compared the effects of 2% OPFP pretreated with acid, alkali, and enzymes on EPS production by and viability of SLC 13, to enhance the applicability of the fibers.
The results of enzymatic treatments of OPFP showed that treatment with 20 U xylanase, 20 U cellulase, and 10 U cellulase + 10 U xylanase all significantly improved the EPS yield (Table 3).
Antioxidant Capacity of EPS Produced by SLC 13 in Culture Medium Supplemented with glucose, OPFP and TFP
The results indicated that 6% glucose had the greatest positive effect on the reducing power of EPS at a concentration of 20 mg/mL, followed by no supplementation, 2% OPFP, and 2% TFP, with reducing powers of 121.1548 +- 2.1861%, 109.1203 +- 6.1522%, 101.1332 +- 4.1096%, and 98.4888 +- 2.2972%, respectively (Fig.
The greatest enhancing effect on the DPPH free-radical scavenging capacity of EPS at a concentration of 20 mg/mL was noted for 6% glucose, followed by 2% TFP, 2% OPFP, and no supplementation, with DPPH scavenging capacities (%) of 73.7676 +- 3.1502, 67.1828 +- 3.6326, 58.2132 +- 3.2622% and 52.2335 +- 1.8811, respectively (Fig.
In terms of the ABTS free-radical scavenging capacity (%) of EPS, 6% glucose exhibited the greatest enhancing effect at high concentration of EPS (20 mg/mL), followed by 2% OPFP, no supplementation, and 2% TFP, with ABTS scavenging capacities (%) of 85.1297 +- 0.7075, 82.4351 +- 2.4061, 76.2974 +- 6.2307 and 69.8104 +- 5.4724, respectively (as shown in Fig.
Antibacterial Activity of SLC 13 Culture Medium Supplemented with Glucose, OPFP and TFP
In this study, we analyzed whether supplementation of the culture medium with 6% glucose, 2% OPFP and 2% TFP affects the antibacterial activity of SLC 13.
plantarum SLC 13 medium after incubation with OPFP pretreated with chemical reagents in MRS broth
In this study, we evaluated the effect of orange peel fiber powder (OPFP) in comparison to that of T.
Hence, enzymatic treatment would be the method of choice for OPFP treatment, to obtain fermented beverages of SLC 13 with higher viscosity.
In addition, 2% OPFP increased the DPPH and ABTS scavenging capacities of EPS produced by SLC 13 (Fig.