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Anti-inflammatory activities of the mixture of strawberry and rice powder as materials of fermented rice cake on RAW264.7 macrophage cells and mouse models.

ABSTRACT: Rice cake is a traditional food in Korea, and is made by rice alone, or with other grain powder. To improve the health benefits of fermented rice cake, the rice powder was supplemented with strawberry powder. Anti-inflammatory activities of the mixture of strawberry and rice powder were evaluated. Treatment with the mixture significantly decreased the production of nitric oxide (NO). The mixture of strawberry and rice powder in the ratio 10: 90 effectively and dose-dependently reduced the immune-associated genes iNOS, IL-1β, IL-6, COX-2, and TNF-α. Furthermore, carrageenan-injected mice were used to study the anti-inflammatory effect of the mixture. Pre-oral administration of the mixture of strawberry and rice powder at doses of 50 and 100 mg/kg BW significantly reduced paw edema induced by carrageenan. These results suggest that for fermented rice cake production and processing, the strawberry and rice powder mixture may be a potential source of anti-inflammatory activity.

SUBMITTER: Monmai C

PROVIDER: S-EPMC8581096 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature

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Anti-inflammatory activities of the mixture of strawberry and rice powder as materials of fermented rice cake on RAW264.7 macrophage cells and mouse models.

Monmai Chaiwat C Nam Ju Hyun JH Lim Jun Hyeok JH Rod-In Weerawan W Lee Tae Ho TH Park Woo Jung WJ

Food science and biotechnology 20210718 11

Rice cake is a traditional food in Korea, and is made by rice alone, or with other grain powder. To improve the health benefits of fermented rice cake, the rice powder was supplemented with strawberry powder. Anti-inflammatory activities of the mixture of strawberry and rice powder were evaluated. Treatment with the mixture significantly decreased the production of nitric oxide (NO). The mixture of strawberry and rice powder in the ratio 10: 90 effectively and dose-dependently reduced the immune ...[more]

PMID: 34790424

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Project description:IntroductionThis study aimed to examine the effects of fermented rice husk powder feed on growth performance, apparent nutrient digestibility, and rumen microbial communities in fattening Hu sheep.MethodsTwenty-one male Hu sheep with similar body weights (32.68 ± 1.59 kg) were randomly assigned to three groups: a control group (CON) receiving a TMR with soybean straw, a rice husk powder group (RH), and a fermented rice husk powder group (FHR).ResultsThe results indicated that the FHR group exhibited a significant increase in ADG and FBW of Hu sheep compared to the other two groups (p < 0.05). The digestibility of CP and EE was significantly higher in the CON and FHR groups than in the RH group (p < 0.01). Furthermore, the digestibility of DM in the CON group was higher than in the FHR and RH groups (p < 0.01). The FHR group showed lower NDF and ADF digestibility compared to the CON group, but higher than the RH group (p < 0.05). Additionally, serum ALB and ALT levels in the CON group were elevated compared to those in the two groups (p < 0.05). The rumen concentrations of TVFA, butyrate, and valerate in the FHR group were significantly elevated compared to the other two groups (p < 0.05). At the genus level, the relative abundances of Rikenellaceae RC9 gut group, Succinimonas, UCG-010_norank, UCG-005, p-251-o5_norank, and Lachnospiraceae AC2044 group were significantly diminished in the FHR group compared to the CON group (p < 0.05). In contrast, the relative abundance of Succinivibrio was significantly higher (p < 0.05), while the abundances of Eubacterium coprostanoligenes group_norank and Quinella were significantly lower (p < 0.05) in the RH group compared to the CON group. Spearman correlation analysis revealed negative correlations between the Rikenellaceae RC9 gut group and propionate, butyrate, and TVFA, as well as between Prevotellaceae UCG-003 and both propionate and TVFA. Conversely, Ruminococcus showed a positive correlation with propionate and TVFA.DiscussionIn conclusion, replacing 15% of soybean straw with fermented rice husk powder feed modified the rumen microbiota and improved the growth performance of fattening Hu sheep.

Project description:BackgroundFunctional fermented beverages are popular worldwide due to their potential to promote health. Starter culture is the main determinant of the final quality and flavor of fermented beverages. The co-cultivation of lactic acid bacteria (LAB) and yeast makes a significant contribution to the safe flavor of fermented beverages. However, the research on the potential of antioxidant, antimicrobial, and anti-biofilm formation of strawberry fermented beverage obtained by combining the LAB and yeast as starter cultures has not been well explored.MethodsIn this study, LAB and yeast were combined as starter culture to obtain strawberry fermented beverage. Fourier transform infrared (FTIR ) spectroscopy was used for the qualitative analysis of the fresh strawberry juice and fermented beverage. From the changes in antioxidant content, free radical scavenging ability, total superoxide dismutase (T-SOD) activity and total antioxidant capacity (T-AOC) to evaluate the antioxidant capacity of fermented beverage in vitro. The antibacterial ability was tested by the Oxford cup method. The biofilms of Escherichia coli ATCC 25922, Staphylococcus aureus ATCC 6538 under fermented beverages treatment was observed by Fluorescence microscope. In addition, sensory analysis was conducted in this study.ResultsIn this study, the absorption peaks of Fourier transform infrared between 1,542 cm-1 and 976 cm-1, suggest the existence of organic acids, sugars and ethanol. The total phenols and total flavonoids content decreased by 91.1% and 97.5%, respectively. T-SOD activity increased by 33.33%.The scavenging ability of fermented beverage on superoxide anion free radicals was enhanced, and the scavenging ability on DPPH free radicals, hydroxyl free radicals, and ABTS free radicals was weakened. However, the T-AOC increased from 4.15 ± 0.81 to 8.43 ± 0.27 U/mL. Fermented beverage shows antibacterial activity against four pathogens. The minimum inhibitory concentration (MIC) values of Escherichia coli ATCC 25922 and Staphylococcus aureus ATCC 6538 were 0.05 mL/mL and 0.025 mL/mL, respectively, and the minimum bactericidal concentration (MBC) were both 0.2 mL/mL. It was observed by fluorescence microscope that the green fluorescence area of the two biofilms is greatly reduced after being treated with fermented beverage. Sensory analysis results show that the average scores of fermented beverage in color, appearance and taste were increased. The overall impression and flavor were decreased.ConclusionThese results demonstrated that strawberry fermented beverage has potential benefits such as an antioxidant, antibacterial, and anti-biofilm formation, providing the potential for the fermented beverage to become promising candidates for natural antioxidants, antibacterial agents and anti-biofilm agents.

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Anti-inflammatory activities of the mixture of strawberry and rice powder as materials of fermented rice cake on RAW264.7 macrophage cells and mouse models.

Publications

Anti-inflammatory activities of the mixture of strawberry and rice powder as materials of fermented rice cake on RAW264.7 macrophage cells and mouse models.

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