Bioaccessibility and Bioavailability of Phenolic Compounds in Seaweed

Zhao, Wanrong; Subbiah, Vigasini; Xie, Cundong; Yang, Zihong; Shi, Linghong; Barrow, Colin J.; Dunshea, Frank R.; Suleria, Hafiz Ansar Rasul

doi:10.1080/87559129.2022.2094404

Cited by 12 publications

(6 citation statements)

References 114 publications

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“…This clustering pattern is consistent with the findings from the PCA analysis. TCT and TFC were conducted as separate content assays, suggesting that they are not the dominant PCs in the selected seaweed (Zhao et al., 2022). However, they still contribute to the overall antioxidant capacity to some extent.…”

Section: Resultsmentioning

confidence: 99%

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Evaluation of the antioxidant potential of brown seaweeds extracted by different solvents and characterization of their phenolic compounds by LC–ESI‐QTOF–MS/MS

Duan

Subbiah

Xie

et al. 2023

Journal of Food Science

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Seaweeds, serving as valuable natural sources of phenolic compounds (PCs), offer various health benefits like antioxidant, anti‐inflammatory properties, and potential anticancer effects. The efficient extraction of PCs from seaweed is essential to harness their further applications. This study compares the effectiveness of different solvents (ethanol, methanol, water, acetone, and ethyl acetate) for extracting PCs from four seaweed species: Ascophyllum sp., Fucus sp., Ecklonia sp., and Sargassum sp. Among them, the ethanol extract of Sargassum sp. had the highest content of total phenolics (25.33 ± 1.45 mg GAE/g) and demonstrated potent scavenging activity against the 2,2‐diphenyl‐1‐picrylhydrazyl radical (33.65 ± 0.03 mg TE/g) and phosphomolybdate reduction (52.98 ± 0.47 mg TE/g). Ecklonia sp. had the highest content of total flavonoids (0.40 ± 0.02 mg QE/g) in its methanol extract, whereas its ethyl acetate extract contained the highest content of total condensed tannins (8.09 ± 0.12 mg CE/g). Fucus sp. demonstrated relatively strong antioxidant activity, with methanolic extracts exhibiting a scavenging ability against 2,2′‐azino‐bis(3‐ethylbenzothiazoline‐6‐sulfonic acid) radical (54.41 ± 0.24 mg TE/g) and water extracts showing ferric‐reducing antioxidant power of 36.24 ± 0.06 mg TE/g. Likewise, liquid chromatography–mass spectrometry identified 61 individual PCs, including 17 phenolic acids, 32 flavonoids, and 12 other polyphenols. Ecklonia sp., particularly in the ethanol extract, exhibited the most diverse composition. These findings underscore the importance of selecting appropriate solvents based on the specific seaweed species and desired compounds, further providing valuable guidance in the pharmaceutical, nutraceutical, and cosmetic industries.Practical ApplicationThe PCs, which are secondary metabolites present in terrestrial plants and marine organisms, have garnered considerable attention due to their potential health advantages and diverse biological effects. Using various organic/inorganic solvents during the extraction process makes it possible to selectively isolate different types of PCs from seaweed species. The distinct polarity and solubility properties of each solvent enable the extraction of specific compounds, facilitating a comprehensive assessment of the phenolic composition found in the seaweed samples and guiding industrial production.

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Section: Resultsmentioning

confidence: 99%

“…are not the dominant PCs in the selected seaweed (Zhao et al, 2022). However, they still contribute to the overall antioxidant capacity to some extent.…”

Section: Correlation Among Antioxidant Assaysmentioning

confidence: 88%

Evaluation of the antioxidant potential of brown seaweeds extracted by different solvents and characterization of their phenolic compounds by LC–ESI‐QTOF–MS/MS

Duan

Subbiah

Xie

et al. 2023

Journal of Food Science

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“…These findings suggest that the in vitro digestion process has a variable impact on the TPC of macroalgae, which may be related to the species and type of polyphenols present. Furthermore, various factors can impact the absorption of phenolic compounds in the intestine, including pH, temperature, and food matrix. − …”

Section: Resultsmentioning

confidence: 99%

Characterization of Proteins Extracted from Ulva sp., Padina sp., and Laurencia sp. Macroalgae Using Green Technology: Effect of In Vitro Digestion on Antioxidant and ACE-I Inhibitory Activity

Şensu,

Ayar,

Okudan

et al. 2023

ACS Omega

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Macroalgal proteins were extracted from Ulva rigida (URPE) (green), Padina pavonica (PPPE) (brown), and Laurencia obtusa (LOPE) (red) using ultrasound-assisted enzymatic extraction, which is one of the green extraction technologies. Techno-functional, characteristic, and digestibility properties, and biological activities including antioxidant (AOA) and angiotensin-I converting enzyme (ACE-I) inhibitory activities were also investigated. According to the results, the extraction yield (EY) (94.74%) was detected in the extraction of L. obtusa , followed by U. rigida and P. pavonica . PPPE showed the highest ACE-I inhibitory activity before in vitro digestion. In contrast to PPPE, LOPE (20.90 ± 0.00%) and URPE (20.20 ± 0.00%) showed higher ACE-I inhibitory activity after in vitro digestion. The highest total phenolic content (TPC) (77.86 ± 1.00 mg GAE/g) was determined in LOPE. On the other hand, the highest AOA CUPRAC (74.69 ± 1.78 mg TE/g) and AOA ABTS (251.29 ± 5.0 mg TE/g) were detected in PPPE. After in vitro digestion, LOPE had the highest TPC (22.11 ± 2.18 mg GAE/g), AOA CUPRAC (8.41 ± 0.06 mg TE/g), and AOA ABTS (88.32 ± 0.65 mg TE/g) ( p < 0.05). In vitro protein digestibility of three macroalgal protein extracts ranged from 84.35 ± 2.01% to 94.09 ± 0.00% ( p < 0.05). Three macroalgae showed high oil holding capacity (OHC), especially PPPE (410.13 ± 16.37%) ( p < 0.05), but they showed minimum foaming and emulsifying properties. The quality of the extracted macroalgal proteins was assessed using FTIR, SDS-PAGE, and DSC analyses. According to our findings, the method applied for macroalgal protein extraction could have a potential the promise of ultrasonication application as an environmentally friendly technology for food industry. Moreover, URPE, PPPE, and LOPE from sustainable sources may be attractive in terms of nourishment for people because of their digestibility, antioxidant properties, and ACE-I inhibitory activities.

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“…The metabolites produced by root also benefit the growth of microorganisms (Meier et al 2017) and thus NPPT+MP caused the NPPT to be under a stronger microbial degradation, shortened its effective action time, increased the ammonia volatilization loss, and significantly decreased the inorganic N contents (Tables 2 and 3), which was not beneficial to the effect of NPPT. Zhao et al (2022) showed that seaweed phenolics have strong antibacterial ability, which could show toxicity to some soil microorganisms (Geng et al 2017). The authors concluded that this could delay the degradation of NPPT in the soil, further reducing the ammonia volatilization loss, and significantly increasing the inorganic N contents (Tables 2 and 3) (P < 0.05).…”

Section: Effect Of Se From Different Sources and Inhibitors On Urea-n...mentioning

confidence: 99%

Effect of seaweed extracts from different sources combined with urease and nitrification inhibitors

Xiao

Zhang

et al. 2023

BioRes

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Urease inhibitors (UIs) and nitrification inhibitors (NIs) still have limitations in increasing crop yield. Therefore, to improve the application effect of inhibitors, the combination of seaweed extracts (SE) from different sources and inhibitors was added to urea to provide a theoretical basis for the development of a new generation of efficient stabilized urea fertilizer with both biostimulant and inhibitor technologies. The combinations were tested in outdoor pots with no N- fertilizer (CK), application of urea alone (U) as control, and kelp polysaccharide (KP), margin polysaccharide (MP), N−(n−propyl) thiophosphoric triamide (NPPT), dicyandiamide (DCD), and combinations of SE with inhibitor were added to urea to make eight fertilizer prototypes. Compared with KP, MP showed better application effect, with significantly higher grain yield and nitrogen use efficiency (NUE) (P < 0.05). Compared with the addition of inhibitor alone, the combinations of NPPT with KP and MP, respectively, had opposite effects on urea−N transformation, meanwhile NPPT+KP had a positive effect. However, NPPT+MP significantly decreased yield, plant nitrogen uptake, and NUE (P < 0.05); DCD+MP decreased plant N uptake and NUE to some extent. Therefore, the addition of NPPT with KP and DCD with KP to urea significantly improved yield when planting maize in black soil.

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Bioaccessibility and Bioavailability of Phenolic Compounds in Seaweed

Cited by 12 publications

References 114 publications

Evaluation of the antioxidant potential of brown seaweeds extracted by different solvents and characterization of their phenolic compounds by LC–ESI‐QTOF–MS/MS

Evaluation of the antioxidant potential of brown seaweeds extracted by different solvents and characterization of their phenolic compounds by LC–ESI‐QTOF–MS/MS

Characterization of Proteins Extracted from Ulva sp., Padina sp., and Laurencia sp. Macroalgae Using Green Technology: Effect of In Vitro Digestion on Antioxidant and ACE-I Inhibitory Activity

Effect of seaweed extracts from different sources combined with urease and nitrification inhibitors

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