Antioxidant Activities of Fermented Ulva pertusa Kjellman

Kang, So-Yun; Kim, Kyoung-Hee; Yook, Hong-Sun

doi:10.3746/jkfn.2020.49.9.940

Cited by 4 publications

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“…On the other hand, bioconversion using fermentation exploits the substrate specificity of enzymes that induce hydrolyzation or structural changes in macromolecules present in the natural compounds, thereby increasing the yield of the bioconverted products or the production of new compounds as reactants or hydrolyzed products (Gulsunoglu-Konuskan & Kilic-Akyilmaz, 2022). In addition, microbe-derived enzymes produced during fermentation, such as β-glycosidase and β-glucuronidase, are known to enhance their bioactivity by increasing the hydrolysis of glycosidic bonds to terminal non-reducing residues in β-Dglucosides and oligosaccharides that are bonded within the plant cellular tissues to small molecules (Kim et al, 2022;Kumari et al, 2021;Kang et al, 2020). The WHO and FAO considered probiotics as 'live microorganisms when administered in adequate amounts confer a health benefit on the host' (Zendebooodi et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Enhancement of bioactive compounds through bioconversion of Oenanthe javanica using Lactiplantibacillus plantarum

et al. 2023

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The purpose of this study is to investigate the effect of bioconverted Oenanthe javanica extract (BOE) using Lactiplantibacillus plantarum SM4 on production of bioactive compounds. Response surface methodology was used to determine the optimal ultrasound-assisted extraction conditions including the extraction time, extraction temperature, and ethanol concentration for the enhancement of bioactive compounds production. The predicted optimum UAE conditions were extraction time of 26.0 min, extraction temperature of 92.8 °C, and 59.9% ethanol, respectively, and 5.14 mg GAE/g DM of TPC and 0.59 mg QE/g DM of TFC were produced under the optimum condition. Then, O. javanica extraction (OJE) has been bioconverted by using L. plantarum SM4 to increase the bioactive compounds. In HPLC-mass spectrometry analyses, higher concentration of p-coumaric acid was identified in BOE than in OJE, and chlorogenic acid in OJE was converted to quinic acid, confirming an increase in bioactive compounds by bioconversion. Thus, we have concluded that optimization of UAE and the BOE is an effective process for enhancement bioactive compounds from O. Javanica and this finding provides a scientific basis of bioactive compounds in natural product can be utilized as food, cosmetics, and pharmaceutical materials from BOE.

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Section: Introductionmentioning

confidence: 99%

Enhancement of bioactive compounds through bioconversion of Oenanthe javanica using Lactiplantibacillus plantarum

et al. 2023

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Effect of sword bean (Canavalia ensiformis) fermentation filtrate on the antioxidant, anti-inflammatory, and antimicrobial activities

Jang

2023

Korean J. Food Preserv.

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In the present study, various experiments were performed to evaluate the biological activities, such as the antioxidant, anti-inflammation, and antimicrobial activities of sword bean (Canavalia ensiformis) fermentation filtrate by Lactobacillus plantarum (L. plantarum) and Lactobacillus brevis (L. brevis). Total polyphenol (TPC) and flavonoid contents (TFC) of sword bean were significantly decreased after fermentation regardless of Lactobacillus sp. (p<0.05). The DPPH radical scavenging activity of sword beans also decreased after fermentation. However, nitric oxide (NO) radical scavenging activity conspicuous increased after fermentation (p<0.001) in a treated concentration-dependent manner, and the effect for L. brevis was higher than for L. plantarum. In addition, the sword bean fermentation filtrate showed a strong inhibitory effect against Pseudomonas aeruginosa, Staphylococcus sp., and Escherichia coli. Cell cytotoxicity was not exhibited in all experimental groups (data not shown). These findings suggest that the sword bean fermentation filtrate may be used effectively in various industries due to its high anti-inflammatory and antimicrobial activities.

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Anti-Obesity Potential of Sargassum horneri and Ulva australis Extracts: Study In Vitro and In Vivo

et al. 2023

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Current research highlights the use of natural products or phytochemicals as drugs and functional additives to treat obesity with few side effects. Sargassum horneri (SH) and Ulva australis (UA) are marine waste resources on Jeju Island, Republic of Korea. In this study, we analyzed their antioxidant and anti-obesity efficacies to confirm their potential as functional additives. We prepared SH and UA extracts using 80% ethanol and observed that free radical scavenging activity and total phenol content were high in SH extracts, and total flavonoid content was elevated in UA extracts. Additionally, 3T3-L1 cells were treated with SH and UA extracts, and the ability of the extracts to inhibit adipocyte differentiation was examined using Oil Red O staining and analysis of neutral fat content. We confirmed that the mRNA expression of the C/EBPα, PPARγ, and SREBP1c genes that act on adipocyte differentiation, and of FAS, a fatty acid synthase, was suppressed. Experiments in a mouse model of obesity showed that 12-week administration of a high-fat diet with 1% extract added to drinking water resulted in lower weight gain compared to the high-fat diet alone. These results suggest that SH and UA extracts have antioxidant properties and are effective in obesity prevention. Therefore, the two marine waste resources are potential functional additive candidates for preventing obesity.

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Antioxidant Activities of Fermented Ulva pertusa Kjellman

Cited by 4 publications

References 0 publications

Enhancement of bioactive compounds through bioconversion of Oenanthe javanica using Lactiplantibacillus plantarum

Enhancement of bioactive compounds through bioconversion of Oenanthe javanica using Lactiplantibacillus plantarum

Effect of sword bean (Canavalia ensiformis) fermentation filtrate on the antioxidant, anti-inflammatory, and antimicrobial activities

Anti-Obesity Potential of Sargassum horneri and Ulva australis Extracts: Study In Vitro and In Vivo

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