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  1. Book ; Online ; E-Book: Air, water, and soil reclamation

    El-Gendy, Nour Shafik

    (Sustainable solutions for environmental pollution ; volume 2)

    2022  

    Author's details edited by Nour Shafik El-Gendy
    Series title Sustainable solutions for environmental pollution ; volume 2
    Collection
    Language English
    Size 1 Online-Ressource (xvii, 542 Seiten), Illustrationen
    Publisher Scrivener Publishing ; Wiley
    Publishing place Beverly ; Hoboken, NJ
    Publishing country United States
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT021380737
    ISBN 9781119827658 ; 9781119827511 ; 1119827655 ; 1119827515
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

    Full text online

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  2. Book ; Online ; E-Book: Waste management and value-added products

    El-Gendy, Nour Shafik

    (Sustainable solutions for environmental pollution ; volume 1)

    2021  

    Author's details edited by Nour Shafik El-Gendy
    Series title Sustainable solutions for environmental pollution ; volume 1
    Collection
    Language English
    Size 1 Online-Ressource (xviii, 492 Seiten), Illustrationen
    Publisher Scrivener Publishing
    Publishing place Bervely
    Publishing country United States
    Document type Book ; Online ; E-Book
    Remark Zugriff für angemeldete ZB MED-Nutzerinnen und -Nutzer
    HBZ-ID HT021080949
    ISBN 978-1-119-78542-2 ; 9781119785354 ; 1-119-78542-1 ; 1119785359
    Database ZB MED Catalogue: Medicine, Health, Nutrition, Environment, Agriculture

    Full text online

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  3. Article: Development and Evaluation of an Eco-Friendly Hand Sanitizer Formulation Valorized from Fruit Peels.

    Verma, J / Mishra, R / Mazumdar, A / Singh, R / El-Gendy, N Sh

    International journal of biomaterials

    2023  Volume 2023, Page(s) 2516233

    Abstract: Hand sanitizer usage has proven to be a common and practical method for reducing the spread of infectious diseases which can be caused by many harmful pathogens. There is a need for alcohol-free hand sanitizers because most hand sanitizers on the market ... ...

    Abstract Hand sanitizer usage has proven to be a common and practical method for reducing the spread of infectious diseases which can be caused by many harmful pathogens. There is a need for alcohol-free hand sanitizers because most hand sanitizers on the market are alcohol-based, and regular use of them can damage the skin and can be hazardous. India is the world's largest producer of fruits and one of the major problems after fruit consumption is their peels, causing waste management problems and contributing to the formation of greenhouse gases leading to air pollution and adding to the problem of climate change. Valorization of such wastes into other value-added products and their incorporation into formulations of eco-friendly alcohol-free hand sanitizers would solve these issues, save the environment, benefit the society, and help in achieving the sustainable development goals. Thus, this research focuses on formulating an effective natural alcohol-free hand sanitizer that harnesses the antimicrobial properties of the various types of bioactive components found in fruit peels of pomegranate, sweet lime, and lemon. The peel extracts and the formulated sanitizer proved considerable antimicrobial activity against the pathogenic
    Language English
    Publishing date 2023-12-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2494344-7
    ISSN 1687-8795 ; 1687-8787
    ISSN (online) 1687-8795
    ISSN 1687-8787
    DOI 10.1155/2023/2516233
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Phycoremediation of phenol-polluted petro-industrial effluents and its techno-economic values as a win-win process for a green environment, sustainable energy and bioproducts.

    El-Gendy, N Sh / Nassar, H N

    Journal of applied microbiology

    2021  Volume 131, Issue 4, Page(s) 1621–1638

    Abstract: The discharge of the toxic phenol-polluted petro-industrial effluents (PPPIE) has severe environmental negative impacts, thus it is mandatory to be treated before its discharge. The objective of this review was to discuss the sustainable application of ... ...

    Abstract The discharge of the toxic phenol-polluted petro-industrial effluents (PPPIE) has severe environmental negative impacts, thus it is mandatory to be treated before its discharge. The objective of this review was to discuss the sustainable application of microalgae in phenols degradation, with a special emphasis on the enzymes involved in this bioprocess and the factors affecting the success of PPPIE phycoremediation. Moreover, it confers the microalgae bioenergetic strategies to degrade different forms of phenols in PPPIE. It also points out the advantages of the latest application of bacteria, fungi and microalgae as microbial consortia in phenols biodegradation. Briefly, phycoremediation of PPPIE consumes carbon dioxide emitted from petro-industries for; valorization of the polluted water to be reused and production of algal biomass which can act as a source of energy for such integrated bioprocess. Besides, the harvested algal biomass can feasibly produce; third-generation biofuels, biorefineries, bioplastics, fish and animal feed, food supplements, natural dyes, antioxidants and many other valuable products. Consequently, this review precisely confirms that the phycoremediation of PPPIE is a win-win process for a green environment and a sustainable future. Thus, to achieve the three pillars of sustainability; social, environmental and economic; it is recommendable to integrate PPPIE treatment with algal cultivation. This integrated process would overcome the problem of greenhouse gas emissions, global warming and climate change, solve the problem of water-scarce, and protect the environment from the harmful negative impacts of PPPIE.
    MeSH term(s) Animals ; Biofuels ; Biomass ; Microalgae ; Phenol ; Phenols ; Waste Water
    Chemical Substances Biofuels ; Phenols ; Waste Water ; Phenol (339NCG44TV)
    Language English
    Publishing date 2021-02-02
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.14989
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 259: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  5. Article: Phycoremediation of phenol‐polluted petro‐industrial effluents and its techno‐economic values as a win‐win process for a green environment, sustainable energy and bioproducts

    El‐Gendy, N.Sh / Nassar, H.N.

    Journal of applied microbiology. 2021 Oct., v. 131, no. 4

    2021  

    Abstract: The discharge of the toxic phenol‐polluted petro‐industrial effluents (PPPIE) has severe environmental negative impacts, thus it is mandatory to be treated before its discharge. The objective of this review was to discuss the sustainable application of ... ...

    Abstract The discharge of the toxic phenol‐polluted petro‐industrial effluents (PPPIE) has severe environmental negative impacts, thus it is mandatory to be treated before its discharge. The objective of this review was to discuss the sustainable application of microalgae in phenols degradation, with a special emphasis on the enzymes involved in this bioprocess and the factors affecting the success of PPPIE phycoremediation. Moreover, it confers the microalgae bioenergetic strategies to degrade different forms of phenols in PPPIE. It also points out the advantages of the latest application of bacteria, fungi and microalgae as microbial consortia in phenols biodegradation. Briefly, phycoremediation of PPPIE consumes carbon dioxide emitted from petro‐industries for; valorization of the polluted water to be reused and production of algal biomass which can act as a source of energy for such integrated bioprocess. Besides, the harvested algal biomass can feasibly produce; third‐generation biofuels, biorefineries, bioplastics, fish and animal feed, food supplements, natural dyes, antioxidants and many other valuable products. Consequently, this review precisely confirms that the phycoremediation of PPPIE is a win‐win process for a green environment and a sustainable future. Thus, to achieve the three pillars of sustainability; social, environmental and economic; it is recommendable to integrate PPPIE treatment with algal cultivation. This integrated process would overcome the problem of greenhouse gas emissions, global warming and climate change, solve the problem of water‐scarce, and protect the environment from the harmful negative impacts of PPPIE.
    Keywords algae culture ; biodegradation ; biofuels ; biomass ; bioplastics ; bioprocessing ; biorefining ; carbon dioxide ; energy ; feeds ; fish ; greenhouse gases ; microalgae ; toxicity ; water pollution
    Language English
    Dates of publication 2021-10
    Size p. 1621-1638.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note REVIEW
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.14989
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

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  6. Article ; Online: Biokinetic aspects for biocatalytic remediation of xenobiotics polluted seawater.

    Younis, S A / El-Gendy, N Sh / Nassar, H N

    Journal of applied microbiology

    2020  Volume 129, Issue 2, Page(s) 319–334

    Abstract: Aims: This research was conducted to investigate the biocatalytic remediation of xenobiotics polluted seawater using two biocatalysts; whole bacterial cells of facultative aerobic halotolerant Corynebacterium variabilis Sh42 and its extracted crude ... ...

    Abstract Aims: This research was conducted to investigate the biocatalytic remediation of xenobiotics polluted seawater using two biocatalysts; whole bacterial cells of facultative aerobic halotolerant Corynebacterium variabilis Sh42 and its extracted crude enzymes.
    Methods and results: One-Factor-at-A-Time technique and statistical analysis were applied to study the effect of initial substrate concentrations, pH, temperature, and initial biocatalyst concentrations on the batch biocatalytic degradation of three xenobiotic pollutants (2-hydroxybiphenyl (2-HBP), catechol and benzoic acid) in artificial seawater (salinity 3·1%). HPLC and gas-chromatography mass spectroscopy analyses were utilized to illustrate the quantitative removal of the studied aromatic xenobiotic pollutants and their catabolic pathway. The results revealed that the microbial and enzymatic cultures followed substrate inhibition kinetics. Yano and Koga's equation showed the best fit for the biokinetic degradation rates of 2-HBP and benzoic acid, whereas Haldane biokinetic model adequately expressed the specific biodegradation rate of catechol. The biokinetic results indicated the good efficiency and tolerance of crude enzyme for biocatalytic degradation of extremely high concentrations of aromatic pollutants than whole C. variabilis Sh42 cells. The monitored by-products indicated that the catabolic degradation pathway followed an oxidation mechanism via a site-specific monooxygenase enzyme. Benzoic acid and catechol were identified as major intermediates in the biodegradation pathway of 2-HBP, which were then biodegraded through meta-cleavage to 2-hydroxymuconic semialdehyde. With time elapsed, the semialdehyde product was further biodegraded to acetaldehyde and pyruvic acid, which would be further metabolized via the bacterial TCA cycle.
    Conclusion: The batch enzymatic bioreactors performed superior-specific biocatalytic degradation rates for all the studied xenobiotic pollutants.
    Significance and impact of the study: The enzymatic system of C. variabilis Sh42 is tolerable for toxic xenobiotics and different physicochemical environmental parameters. Thus, it can be recommended as an effective biocatalyst for biocatalytic remediation of xenobiotics polluted seawater.
    MeSH term(s) Biocatalysis ; Biodegradation, Environmental ; Bioreactors ; Corynebacterium/metabolism ; Kinetics ; Metabolic Networks and Pathways ; Seawater/chemistry ; Water Pollutants, Chemical/metabolism ; Xenobiotics/metabolism
    Chemical Substances Water Pollutants, Chemical ; Xenobiotics
    Language English
    Publishing date 2020-03-18
    Publishing country England
    Document type Journal Article
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.14626
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 259: Show issues Location:
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  7. Article: Biokinetic aspects for biocatalytic remediation of xenobiotics polluted seawater

    Younis, S.A / El‐Gendy, N.Sh / Nassar, H.N

    Journal of applied microbiology. 2020 Aug., v. 129, no. 2

    2020  

    Abstract: AIMS: This research was conducted to investigate the biocatalytic remediation of xenobiotics polluted seawater using two biocatalysts; whole bacterial cells of facultative aerobic halotolerant Corynebacterium variabilis Sh42 and its extracted crude ... ...

    Abstract AIMS: This research was conducted to investigate the biocatalytic remediation of xenobiotics polluted seawater using two biocatalysts; whole bacterial cells of facultative aerobic halotolerant Corynebacterium variabilis Sh42 and its extracted crude enzymes. METHODS AND RESULTS: One‐Factor‐at‐A‐Time technique and statistical analysis were applied to study the effect of initial substrate concentrations, pH, temperature, and initial biocatalyst concentrations on the batch biocatalytic degradation of three xenobiotic pollutants (2‐hydroxybiphenyl (2‐HBP), catechol and benzoic acid) in artificial seawater (salinity 3·1%). HPLC and gas‐chromatography mass spectroscopy analyses were utilized to illustrate the quantitative removal of the studied aromatic xenobiotic pollutants and their catabolic pathway. The results revealed that the microbial and enzymatic cultures followed substrate inhibition kinetics. Yano and Koga’s equation showed the best fit for the biokinetic degradation rates of 2‐HBP and benzoic acid, whereas Haldane biokinetic model adequately expressed the specific biodegradation rate of catechol. The biokinetic results indicated the good efficiency and tolerance of crude enzyme for biocatalytic degradation of extremely high concentrations of aromatic pollutants than whole C. variabilis Sh42 cells. The monitored by‐products indicated that the catabolic degradation pathway followed an oxidation mechanism via a site‐specific monooxygenase enzyme. Benzoic acid and catechol were identified as major intermediates in the biodegradation pathway of 2‐HBP, which were then biodegraded through meta‐cleavage to 2‐hydroxymuconic semialdehyde. With time elapsed, the semialdehyde product was further biodegraded to acetaldehyde and pyruvic acid, which would be further metabolized via the bacterial TCA cycle. CONCLUSION: The batch enzymatic bioreactors performed superior‐specific biocatalytic degradation rates for all the studied xenobiotic pollutants. SIGNIFICANCE AND IMPACT OF THE STUDY: The enzymatic system of C. variabilis Sh42 is tolerable for toxic xenobiotics and different physicochemical environmental parameters. Thus, it can be recommended as an effective biocatalyst for biocatalytic remediation of xenobiotics polluted seawater.
    Keywords Corynebacterium variabile ; acetaldehyde ; benzoic acid ; biocatalysts ; biodegradation ; bioreactors ; catabolism ; catechol ; enzymes ; equations ; models ; oxidation ; pH ; pyruvic acid ; remediation ; salinity ; salt tolerance ; seawater ; statistical analysis ; temperature ; toxicity ; tricarboxylic acid cycle ; xenobiotics
    Language English
    Dates of publication 2020-08
    Size p. 319-334.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note NAL-AP-2-clean ; JOURNAL ARTICLE
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.14626
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 259: Show issues Location:
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    ab Jg. 2022: Lesesaal (EG)

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  8. Article: Biovalorization of mandarin waste peels into silver nanoparticles and activated carbon

    Omran, B. A / Aboelazayem, O / Nassar, H. N / El-Salamony, R. A / El-Gendy, N. Sh

    International journal of environmental science and technology. 2021 May, v. 18, no. 5

    2021  

    Abstract: This work aims to upcycle mandarin (Citrus reticulum) waste peels into valuable compounds with different applications. The one-factor-at-a-time method was applied to optimize the biosynthesis of silver nanoparticles using the hot water extract of ... ...

    Abstract This work aims to upcycle mandarin (Citrus reticulum) waste peels into valuable compounds with different applications. The one-factor-at-a-time method was applied to optimize the biosynthesis of silver nanoparticles using the hot water extract of mandarin peels’ waste. The maximum production reached 2.5 g L⁻¹ in a 4-h, pH9, 100 rpm continuous stirring batch process, operating at 30 °C, under fluorescent illumination of 36 W/6400 K, using 3000 mg L⁻¹ extract solution and 2 mmol AgNO₃. Dynamic light scattering, zeta potential, X-ray diffraction, energy-dispersive X-ray, Fourier transform infrared spectroscopy, field emission scanning electron microscope and high-resolution transmission electron microscope were employed to characterize the prepared silver nanoparticles, which revealed highly stable, uniformly distributed, nonagglomerated crystalline silver nanoparticles, with spherical/oval shapes and a size range of 10–19 nm. The preliminary cost analysis proved the cost-effectiveness of the valorization of mandarine peels into silver nanoparticles, which costs approximately 7.6 US$/g green synthesized silver nanoparticles with good savings relative to the global prices of the chemically synthesized ones. Moreover, to reach the point of zero waste and maximize the profitability of the valorization, the mandarin spent waste disposed from the batch process were upcycled to activated carbon which has different applications.
    Keywords Citrus ; Fourier transform infrared spectroscopy ; X-radiation ; X-ray diffraction ; activated carbon ; batch systems ; biosynthesis ; cost analysis ; cost effectiveness ; fluorescence ; lighting ; nanosilver ; profitability ; reticulum ; transmission electron microscopes ; wastes ; zero wastes ; zeta potential
    Language English
    Dates of publication 2021-05
    Size p. 1119-1134.
    Publishing place Springer Berlin Heidelberg
    Document type Article
    Note NAL-AP-2-clean
    ZDB-ID 2230399-6
    ISSN 1735-2630 ; 1735-1472
    ISSN (online) 1735-2630
    ISSN 1735-1472
    DOI 10.1007/s13762-020-02873-z
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  9. Article: Novel mycosynthesis of cobalt oxide nanoparticles using Aspergillus brasiliensis ATCC 16404—optimization, characterization and antimicrobial activity

    Omran, B.A / Nassar, H.N / Younis, S.A / El‐Salamony, R.A / Fatthallah, N.A / Hamdy, A / El‐Shatoury, E.H / El‐Gendy, N.Sh

    Journal of applied microbiology. 2020 Feb., v. 128, no. 2

    2020  

    Abstract: AIMS: Investigate the capability of Aspergillus brasiliensis ATCC 16404 to mycosynthesize Co3O4‐NPs. METHODS AND RESULTS: Mycelial cell‐free filtrate of A. brasiliensis ATCC 16404 was applied for mycosynthesis of Co3O4‐NPs. The preliminary indication for ...

    Abstract AIMS: Investigate the capability of Aspergillus brasiliensis ATCC 16404 to mycosynthesize Co3O4‐NPs. METHODS AND RESULTS: Mycelial cell‐free filtrate of A. brasiliensis ATCC 16404 was applied for mycosynthesis of Co3O4‐NPs. The preliminary indication for the formation of Co3O4‐NPs was the change in colour from yellow to reddish‐brown. One‐factor‐at a time‐optimization technique was applied to determine the optimum physicochemical conditions required for the mycosynthesis of Co3O4‐NPs and they were found to be: 72 h for reaction time, pH 11, 30°C, 100 rev min−1 for shaking speed in the darkness using 4 mmol l−1 of CoSO4.7H2O and 5·5% of A. brasiliensis dry weight mycelium (w/v). The mycosynthesized Co3O4‐NPs were characterized using various techniques: spectroscopy including UV/Vis spectrophotometry, dynamic light scattering (DLS), zeta potential measurement, energy‐dispersive X‐ray analysis, Fourier transform infrared spectroscopy and X‐ray diffraction; and vibrating sample magnetometry and microscopy including field emission scanning electron microscopy and high‐resolution transmission electron microscopy. Spectroscopic techniques confirmed the formation of Co3O4‐NPs and the microscopic ones confirmed the shape and size of the mycosynthesized Co3O4‐NPs as quasi‐spherical shaped, monodispersed nanoparticles with a nano size range of 20–27 nm. The mycosynthesized Co3O4‐NPs have excellent magnetic properties and exhibited a good antimicrobial activity against some pathogenic micro‐organisms. CONCLUSION: Ferromagnetic Co3O4‐NPs with considerable antimicrobial activity were for the first time mycosynthesized. SIGNIFICANCE AND IMPACT OF THE STUDY: The use of fungi as potential bionanofactories for mycosynthesis of nanoparticles is relatively a recent field of research with considerable prospects.
    Keywords Aspergillus niger ; Fourier transform infrared spectroscopy ; X-ray diffraction ; antimicrobial properties ; cobalt oxide ; color ; energy-dispersive X-ray analysis ; ferromagnetism ; filtrates ; fungi ; light scattering ; magnetic properties ; mycelium ; nanoparticles ; pH ; scanning electron microscopy ; transmission electron microscopy ; ultraviolet-visible spectroscopy ; zeta potential
    Language English
    Dates of publication 2020-02
    Size p. 438-457.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.14498
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  10. Article ; Online: Batch bioethanol production via the biological and chemical saccharification of some Egyptian marine macroalgae.

    Soliman, R M / Younis, S A / El-Gendy, N Sh / Mostafa, S S M / El-Temtamy, S A / Hashim, A I

    Journal of applied microbiology

    2018  Volume 125, Issue 2, Page(s) 422–440

    Abstract: Aims: Marine seaweeds (macroalgae) cause an eutrophication problem and affects the touristic activities. The success of the production of the third-generation bioethanol from marine macroalgae depends mainly on the development of an ecofriendly and eco- ... ...

    Abstract Aims: Marine seaweeds (macroalgae) cause an eutrophication problem and affects the touristic activities. The success of the production of the third-generation bioethanol from marine macroalgae depends mainly on the development of an ecofriendly and eco-feasible pretreatment (i.e. hydrolysis) technique, a highly effective saccharification step and finally an efficient bioethanol fermentation step. Therefore, this study aimed to investigate the potentiality of different marine macroalgal strains, collected from Egyptian coasts, for bioethanol production via different saccharification processes.
    Methods and results: Different marine macroalgal strains, red Jania rubens, green Ulva lactuca and brown Sargassum latifolium, have been collected from Egyptian Mediterranean and Red Sea shores. Different hydrolysis processes were evaluated to maximize the extraction of fermentable sugars; thermochemical hydrolysis with diluted acids (HCl and H
    Conclusions: This study supported the possibility of using seaweeds as a renewable source of bioethanol throughout a suggested integration of macroalgal biomass hydrothermal and fungal hydrolyses with a separate batch bioethanol fermentation process of the produced sugars.
    Significance and impact of the study: The usage of marine macroalgae (i.e. seaweeds) as feedstock for bioethanol; an alternative and/or complimentary to petro-fuel, would act as triple fact solution; bioremediation process for ecosystem, renewable energy source and economy savings.
    MeSH term(s) Biomass ; Biotechnology/methods ; Egypt ; Ethanol/metabolism ; Fermentation ; Hydrolysis ; Saccharomyces cerevisiae ; Seaweed/metabolism ; Sugars/chemistry ; Sugars/metabolism ; Trichoderma
    Chemical Substances Sugars ; Ethanol (3K9958V90M)
    Language English
    Publishing date 2018-05-23
    Publishing country England
    Document type Journal Article
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.13886
    Database MEDical Literature Analysis and Retrieval System OnLINE

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