Fermentation of Betaphycus gelatinum Using Lactobacillus brevis: Growth of Probiotics, Total Polyphenol Content, Polyphenol Profile, and Antioxidant Capacity

Wang, Zhe; Zhao, Caibo; Guo, Zhiqiang; Li, Shuyi; Zhu, Zhenzhou; Grimi, Nabil; Xiao, Juan

doi:10.3390/foods12183334

Cited by 5 publications

(2 citation statements)

References 55 publications

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“…Flavonoids and their derivatives are considered among the most abundant phenolic compounds in different types of seaweed [ 48 , 49 ]. These compounds exhibit various biological activities and can be used in the prevention of many human diseases [ 50 ].…”

Section: Resultsmentioning

confidence: 99%

“…Wu et al [48] confirmed the presence of this compound in the seaweed extracts, including the alcoholic extract of Sargassum polycystum from the South China Sea. Flavonoids and their derivatives are considered among the most abundant phenolic compounds in different types of seaweed [48,49]. These compounds exhibit various biological activities and can be used in the prevention of many human diseases [50].…”

Section: Identification Of Extracts' Chemical Constituents Via the Ch...mentioning

confidence: 99%

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Improvement of Alginate Extraction from Brown Seaweed (Laminaria digitata L.) and Valorization of Its Remaining Ethanolic Fraction

Savić Gajić,

Savić,

Ivanovska

et al. 2024

Marine Drugs

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This study aimed to improve the conventional procedure of alginate isolation from the brown seaweed (Laminaria digitata L.) biomass and investigate the possibility of further valorization of the ethanolic fraction representing the byproduct after the degreasing and depigmentation of biomass. The acid treatment of biomass supported by ultrasound was modeled and optimized regarding the alginate yield using a response surface methodology based on the Box–Behnken design. A treatment time of 30 min, a liquid-to-solid ratio of 30 mL/g, and a treatment temperature of 47 °C were proposed as optimal conditions under which the alginate yield related to the mass of dry biomass was 30.9%. The use of ultrasonic radiation significantly reduced the time required for the acid treatment of biomass by about 4 to 24 times compared to other available conventional procedures. The isolated alginate had an M/G ratio of 1.08, which indicates a greater presence of M-blocks in its structure and the possibility of forming a soft and elastic hydrogel with its use. The chemical composition of the ethanolic fraction including total antioxidant content (293 mg gallic acid equivalent/g dry weight), total flavonoid content (14.9 mg rutin equivalent/g dry weight), contents of macroelements (the highest content of sodium, 106.59 mg/g dry weight), and microelement content (the highest content of boron, 198.84 mg/g dry weight) was determined, and the identification of bioactive compounds was carried out. The results of ultra high-performance liquid chromatography–electrospray ionization–tandem mass spectrometry analysis confirmed the presence of 48 compounds, of which 41 compounds were identified as sugar alcohol, phenolic compounds, and lipids. According to the 2,2-diphenyl-1-picrylhydrazyl assay, the radical scavenging activity of the ethanolic fraction (the half-maximal inhibitory concentration of 42.84 ± 0.81 μg/mL) indicated its strong activity, which was almost the same as in the case of the positive control, synthetic antioxidant butylhydroxytoluene (the half-maximal inhibitory concentration of 36.61 ± 0.79 μg/mL). Gram-positive bacteria (Staphylococcus aureus, Enterococcus faecalis, and Bacillus cereus) were more sensitive to the ethanolic fraction compared to Gram-negative bacteria (Escherichia coli, Pseudomonas aeruginosa, and Shigella sonnei). The obtained results indicated the possibility of the further use of the ethanolic fraction as a fertilizer for plant growth in different species and antifouling agents, applicable in aquaculture.

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Section: Resultsmentioning

confidence: 99%

Section: Identification Of Extracts' Chemical Constituents Via the Ch...mentioning

confidence: 99%

Improvement of Alginate Extraction from Brown Seaweed (Laminaria digitata L.) and Valorization of Its Remaining Ethanolic Fraction

Savić Gajić,

Savić,

Ivanovska

et al. 2024

Marine Drugs

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Functional components and antioxidant activity were improved in ginger fermented by Bifidobacterium adolescentis and Monascus purpureus

Tan,

Gao,

et al. 2024

LWT

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Process Optimization and Analysis of Product Quality of Blueberry and Corn Peptide Fermented by Mixed Lactic Acid Bacteria

Cong,

Zhang,

Zhao

et al. 2024

Fermentation

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To study the mixed fermentation technology of blueberry and corn peptide by Lacticaseibacillus rhamnosus ZYN-0417 and Lactiplantibacillus plantarum ZYN-0221 and its effect on fermentation quality, fermentation conditions were optimized using a single-factor test and a Plackett–Burman design combined with a Box–Behnken response surface methodology, with blueberry juice and corn peptide as raw materials and L. rhamnosus ZYN-0417 and Lp. plantarum ZYN-0221 as the starter. The results showed that the optimum fermentation conditions were as follows: the volume ratio of ZYN-0417 and ZYN-0221 was 1:1, the amount of blueberry juice was 20%, the amount of corn peptide was 22%, the amount of glucose was 2%, the amount of inoculation was 5%, the fermentation time was 40 h, and the fermentation temperature was 37 °C. Under optimum conditions, the viable count of lactic acid bacteria in fermented blueberry and corn peptide was 16.28 log CFU/mL, the pH value was 4.86, the total acid content was 14.00 g/L, the total sugar content was 39.98 g/100 g, the protein content was 48.34 g/100 g, the scavenging ability of the DPPH, ABTS+ and ·OH− radicals increased by 10.14%, 10.98% and 25.02%, respectively, the chelating ability of Fe2+ increased by 14.92%, the content of total phenol increased by 1.43 mg/L, the content of total flavonoids increased by 0.38 mg/L, the activity of superoxide dismutase increased by 122.10 U/mL, and the activation rate of alcohol dehydrogenase increased by 5.74%. The results showed that mixed lactic acid bacteria could be used as a starter of blueberry and corn peptide and effectively improve the nutritional value of the product.

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Fermentation of Betaphycus gelatinum Using Lactobacillus brevis: Growth of Probiotics, Total Polyphenol Content, Polyphenol Profile, and Antioxidant Capacity

Cited by 5 publications

References 55 publications

Improvement of Alginate Extraction from Brown Seaweed (Laminaria digitata L.) and Valorization of Its Remaining Ethanolic Fraction

Improvement of Alginate Extraction from Brown Seaweed (Laminaria digitata L.) and Valorization of Its Remaining Ethanolic Fraction

Functional components and antioxidant activity were improved in ginger fermented by Bifidobacterium adolescentis and Monascus purpureus

Process Optimization and Analysis of Product Quality of Blueberry and Corn Peptide Fermented by Mixed Lactic Acid Bacteria

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