Marine Macroalgal Biodiversity, Spatial Study for the Egyptian Mediterranean Sea, Alexandria Coast

AbouGabal, Ashgan A.; Khaled, Asmaa A.; Aboul-Ela, Haiam M.; Aly, Hesham M.; Diab, Mohamed H.; Shalaby, Ola Kh.

doi:10.1007/s41208-021-00370-9

Cited by 4 publications

(3 citation statements)

References 36 publications

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“…The visual observation (Figure 3a) and the stereo microscope examination (Figure 3b) revealed a pale to dark green elongated, skinny thallus of about 10 cm that is divided into a number of lobes, which are broader at the bottom and narrower at the tip with irregular edges. That matched well with the observations reported by AbouGabal et al [42]. The microscopic examination (Figure 4) matched well with what has been previously reported by Ismail and Mohamed [20].…”

Section: Morphological Examination Of the Collected Ulva Fasciatasupporting

confidence: 93%

“…All the listed data in Tables 1-5 are comparable to those recorded for different Ulva species [34][35][36][37][38][39][40][41][42][43][44][45]. The protein content (Table 1) is comparable to that reported by Labib and Hosny [46] for Ulva fasciata which recorded 11.68-13.43%, but better than that reported for Ulva lactuca, which recorded 7.16% [12].…”

Section: Physicochemical Characterization Of the Collected Ulva Fasciatasupporting

confidence: 78%

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A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

et al. 2023

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In the framework of a sustainable marine bioeconomy, the present work describes an advanced, eco-friendly, fully integrated biorefinery process for marine Ulva fasciata macroalgae. That would serve as a solution for ecosystem bioremediation, an effective utilization of marine macroalgal resources, and a new initiative to promote a green and low-carbon economy. Ulva fasciata biomass can be utilized as an organic fertilizer with total N, P2O5, and K2O contents of 3.17% and a C/N ratio of 11.71. It can also be used as a solid biofuel with a sufficient calorific value of 15.19 MJ/kg. It has high carbohydrate content and low lignin content of approximately 44.85% and 1.5%, respectively, which recommend its applicability in bioethanol and biobutanol production. Its protein, fiber, lipid, and ash contents of approximately 13.13%, 9.9%, 3.27%, and 21%, respectively with relatively high concentrations of omega-3 fatty acids (n-3 PUFAs) and omega-9 fatty acids (n-9 MUFAs) and relatively low omega-6 fatty acids (n-6 PUFAs) and a n-6/n-3 ratio of 0.13 also recommend its applicability as food additives and animal feeders. Moreover, the suggested sequential zero-waste biomass residue process yielded 34.89% mineral-rich water extract (MRWE), 2.61% chlorophylla,b, 0.41% carotenoids, 12.55% starch, 3.27% lipids, 22.24% ulvan, 13.37% proteins, and 10.66% cellulose of Ulva fasciata dry weight. The efficient biocidal activity of extracted ulvan against pathogenic microorganisms and sulfate-reducing bacteria recommends its application for medical purposes, water densification, and mitigation of microbially induced corrosion in the oil and gas industry.

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Section: Morphological Examination Of the Collected Ulva Fasciatasupporting

confidence: 93%

Section: Physicochemical Characterization Of the Collected Ulva Fasciatasupporting

confidence: 78%

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

et al. 2023

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“…The formation of marine macroalgal communities is regulated by a set of restrictions, such as light, depth, temperature and nutritional content. As a result of macroalgal species’ diversity and availability being affected, the marine environment ultimately changes [ 30 ]. In the Red Sea, macroalgae are known to be one of the most significant biological resources in coastal marine ecosystems, as well as supporting some communities’ diversity and productivity because of their important role as primary producers in the marine environment [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Changes in the Biochemical Composition of Dominant Macroalgal Species along the Egyptian Red Sea Shore

Kamal

Abdel-Raouf

Alwutayd

et al. 2023

Biology

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Macroalgae are significant biological resources in coastal marine ecosystems. Seasonality influences macroalgae biochemical characteristics, which consequentially affect their ecological and economic values. Here, macroalgae were surveyed from summer 2017 to spring 2018 at three sites at 7 km (south) from El Qusier, 52 km (north) from Marsa Alam and 70 km (south) from Safaga along the Red Sea coast, Egypt. Across all the macroalgae collected, Caulerpa prolifera (green macroalgae), Acanthophora spicifera (red macroalgae) and Cystoseira myrica, Cystoseira trinodis and Turbinaria ornata (brown macroalgae) were the most dominant macroalgal species. These macroalgae were identified at morphological and molecular (18s rRNA) levels. Then, the seasonal variations in macroalgal minerals and biochemical composition were quantified to determine the apt period for harvesting based on the nutritional requirements for commercial utilizations. The chemical composition of macroalgae proved the species and seasonal variation. For instance, minerals were more accumulated in macroalgae C. prolifera, A. spicifera and T. ornata in the winter season, but they were accumulated in both C. myrica and C. trinodis in the summer season. Total sugars, amino acids, fatty acids and phenolic contents were higher in the summer season. Accordingly, macroalgae collected during the summer can be used as food and animal feed. Overall, we suggest the harvesting of macroalgae for different nutrients and metabolites in the respective seasons.

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Ascertaining the spatiotemporal variations in seaweed assemblages associated with the endemic seaweed Ulva ovata along selected locations of the Gulf of Khambhat, India

Rathod,

Singh,

Mantri

2024

Aquat Ecol

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Marine Macroalgal Biodiversity, Spatial Study for the Egyptian Mediterranean Sea, Alexandria Coast

Cited by 4 publications

References 36 publications

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

A Fully Integrated Biorefinery Process for the Valorization of Ulva fasciata into Different Green and Sustainable Value-Added Products

Seasonal Changes in the Biochemical Composition of Dominant Macroalgal Species along the Egyptian Red Sea Shore

Ascertaining the spatiotemporal variations in seaweed assemblages associated with the endemic seaweed Ulva ovata along selected locations of the Gulf of Khambhat, India

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