Article
Agriculture, Dairy & Animal Science
Myles J. Shepherd, Lisa A. Herickhoff
Summary: This study identified important factors that affect post-thaw sperm quality in boar sperm cryopreservation using the efficient Plackett-Burman experimental design method, including glycerol concentration, cooling rate, antioxidant supplementation, and straw size.
JOURNAL OF ANIMAL SCIENCE
(2022)
Article
Environmental Sciences
Ana Virginia Filgueiras, Jesus Gago, Ines Garcia, Victor Manuel Leon, Lucia Vinas
Summary: This study optimized the procedure for extracting microplastics from marine sediments, with the Plackett-Burman design revealing sediment mass and agitation time as the most significant variables.
MARINE POLLUTION BULLETIN
(2021)
Article
Multidisciplinary Sciences
Manon Mani Vellingiri, Parimala Gnana Soundari Arockiam Jeyasundar, Brindha Priyadarisini Venkatesan, Wen-chao Liu, Balamuralikrishnan Balasubramanian
Summary: This study focused on developing a statistical approach to optimize the cultivation conditions for maximum CPSM yield from Streptomyces hygroscopicus AVS7, which showed antimicrobial properties. The results indicated a cost-effective method for producing CPSM with potential medicinal and industrial applications.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Lingbin Yan, Zhulan Zhang, Yin Zhang, Huangjian Yang, Guanrong Qiu, Desen Wang, Yunyang Lian
Summary: This study successfully enhanced the production of tacrolimus in Streptomyces tsukubaensis through strain mutagenesis and optimization of the fermentation medium. The high tacrolimus producing strain S. tsukubaensis FIM-16-06 was obtained, and optimal fermentation medium composition was determined, leading to a significant increase in tacrolimus production.
BIOTECHNOLOGY LETTERS
(2021)
Article
Biochemistry & Molecular Biology
Thaisa Cardoso de Oliveira, Antonia Carla de Jesus Oliveira, Yuri Basilio Gomes Patriota, Luise Lopes Chaves, Fabio de Oliveira Silva Ribeiro, Regina C. M. de Paula, Edson Cavalcanti Silva-Filho, Durcilene Alves da Silva, Monica Felts de La Roca Soares, Jose Lamartine Soares-Sobrinho
Summary: A new hydrophobic polymer based on angico gum (AG) was developed, and new nanoparticles were produced to expand the applications of natural polysaccharides in nanomedicine. By utilizing Plackett-Burman's experimental design, nanoparticles with different characteristics were successfully produced. NVP-loaded PAG nanoparticles showed significant promotion of drug release.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Plant Sciences
Mathews Lurth Raj David, Ganesh Moorthy Innasimuthu, Shyam Kumar Rajaram, Thajuddin Nooruddin
Summary: The actinomycete DARP-7 was isolated from a coastal foliose lichen and the culture medium components were optimized to enhance antibiotic production. Compound profiling confirmed the presence of polyene conjugates. The study suggests that coastal lichens could be a promising source for bioactive metabolites producing rare actinobacteria.
SOUTH AFRICAN JOURNAL OF BOTANY
(2022)
Article
Multidisciplinary Sciences
Priyashini Dhaver, Brett Pletschke, Bruce Sithole, Roshini Govinden
Summary: Xylanases are hydrolytic enzymes used in various industries. This study optimized the culture conditions and medium components for xylanase production from Trichoderma harzianum using experimental strategies. The optimal condition for xylanase production was found to be a 6-day fermentation at 70 degrees C, pH 5.0, agitation at 160 rpm, with the addition of wheat bran and ammonium sulphate. The xylanase exhibited acid-thermostability and substrate specificity for beechwood xylan.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Inorganic & Nuclear
Saeideh Dermanaki Farahani, Javad Zolgharnein
Summary: In this study, a new efficient adsorbent, barium-terephthalate metal-organic framework (Ba(BDC)), was synthesized and used to remove sulfate ions from water. The synthesis process involved the use of terephthalate ligand recovered from PET waste. The chemical and crystal structure of Ba(BDC) was analyzed using various techniques. Experimental design optimization approach and regression model were used to find the optimum conditions for maximum removal of sulfate ions. Additionally, kinetics, isotherms, and thermodynamics studies were conducted to provide a comprehensive understanding of the adsorption process.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Agriculture, Multidisciplinary
Xiaohan Li, Hui Xu, Fengmao Liu, Qingrong Peng, Fei Chen, Yangyang Guo
Summary: The study evaluated the effect of five factors on the removal of triadimefon and boscalid from rape by ultrasonic washing through Plackett-Burman design. It found that changing pH of water, cleaning time, water volume and temperature during the washing process can improve the removal rate of the two pesticides residue. This research provides a reference for ultrasonic cleaning conditions by a sink dishwasher and positively impacts food safety.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Chemistry, Physical
Franciele Pereira Camargo, Isabel Kimiko Sakamoto, Ariane Bize, Iolanda Cristina Silveira Duarte, Edson Luiz Silva, Maria Bernadete Amancio Varesche
Summary: Different conditions for obtaining H2 from Citrus Peel Waste were evaluated, with pH 8.5, allochthonous inoculum of 3 gTVS.L-1, and substrate concentration of 15 g CPW.L-1 found to be the most significant factors for higher H2 and acetic acid production. Escherichia and Clostridium were the main genera identified under these conditions.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Biochemistry & Molecular Biology
Ivana Charousova, Miroslava Hlebova, Lukas Hleba, Juraj Medo, Joachim Wink
Summary: A new actinomycete producer of the antibiotic gamma-rubromycin, designated TA 36, was successfully identified as S. iakyrus through morphological, physiological and biochemical characteristics, phylogenetic analysis, and MALDI-TOF MS data. The crude extract of TA 36 showed strong antimicrobial activity against Staphylococcus aureus, and further analysis identified the presence of the promising antitumor and antibacterial antibiotic gamma-rubromycin. This study suggests that S. iakyrus TA 36 is the first-reported source of this unique bioactive secondary metabolite.
Article
Microbiology
Marcela Proenca Borba, Ana Paula da Silva Ferrero, Renata de Souza Lameira, Sueli Teresinha van der Sand
Summary: Despite the worldwide use of 16S rRNA, it is not suitable for discriminating between different species in the Streptomyces genus. To overcome this limitation, we constructed a multi-locus sequence typing scheme using rpoB, gyrB, recA, trpB, and atpD genes. Our analysis of 49 Streptomyces isolates from Antarctic soil revealed discrepancies in species identification between GenBank and EzBioCloud. However, a few isolates in both databases achieved the necessary percentage for identification. Additionally, the lack of deposited sequences in other genes, particularly in GenBank, highlighted the need for more comprehensive data. Moreover, we identified a potential novel species, LMA323St_9, which warrants further study. The use of housekeeping genes provided robust phylogenetic information for understanding intra-group relationships.
ARCHIVES OF MICROBIOLOGY
(2022)
Article
Materials Science, Ceramics
Xiurong Guo, Wenjun Jiang, Danfeng Du, Xiujie Shang
Summary: Modified wood ceramic is a carbon-carbon composite material obtained by calcining pine wood in a nitrogen atmosphere using montmorillonite and magnesium chloride as modifiers. The experimental results showed that the filling weight, mass ratios, and heating rate significantly influenced the comprehensive performance of the modified wood ceramics. The structure and properties of the modified wood ceramics were determined using various analytical techniques.
CERAMICS INTERNATIONAL
(2023)
Article
Microbiology
Alejandra Garcia-Cortes, Julian Andres Garcia-Vasquez, Yani Aranguren, Mauricio Ramirez-Castrillon
Summary: The study focused on increasing carotenoid pigment production in a naturally pigmented yeast by subjecting it to various cellular stresses, resulting in the identification of optimal growth conditions for carotenoid production.
Article
Biotechnology & Applied Microbiology
Jun Ding, Zilin Fu, Yingkun Zhu, Junhao He, Lu Ma, Dengpan Bu
Summary: This study aimed to enhance the DHA yield and concentration of Schizochytrium sp. l-F-9 by optimizing the fermentation medium. The results showed that glucose and peptone significantly improved the DHA content of Schizochytrium sp., and the DHA production was elevated by 34.73% compared with the initial yield through the optimized fermentation medium.
Article
Biochemistry & Molecular Biology
Ragaa A. Hamouda, Mervat H. Hussein, Noura El-Ahmady El-Naggar, Mohammed A. Karim-Eldeen, Khalid H. Alamer, Muneera A. Saleh, Luluah M. Al Masoudi, Eman M. Sharaf, Reham M. Abd El-Azeem
Summary: Seaweeds are found to have a significant effect on promoting plant growth, especially the soluble polysaccharides extracted from Ulva fasciata at a concentration of 5 mg/mL, which have the greatest impact on carbohydrates, proteins, phenols, and antioxidant enzymes in Zea mays.
Correction
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Mervat H. Hussein, Asmaa Atallah El-Sawah
SCIENTIFIC REPORTS
(2022)
Article
Nanoscience & Nanotechnology
A. B. Abeer Mohammed, Amr Mohamed, Noura El-Ahmady El-Naggar, Hoda Mahrous, Ghada M. Nasr, Asmaa Abdella, Rasha H. Ahmed, Sibel Irmak, Mohamed S. A. Elsayed, Samy Selim, Amr Elkelish, Dalal Hussien M. Alkhalifah, Wael N. Hozzein, Abdallah S. Ali
Summary: The research focuses on the environmentally sustainable biosynthesis of silver nanoparticles from fresh leaves of the medicinal plant Moringa oleifera. These silver nanoparticles have potential applications as anti-inflammatory, anticancer, and antimicrobial agents. The study demonstrates the antibacterial potential and antioxidant activity of the biogenic silver nanoparticles synthesized using M. oleifera extract.
JOURNAL OF NANOMATERIALS
(2022)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, WesamEldin I. A. Saber, Amal M. Zweil, Shimaa Bashir
Summary: Green synthesis is a newly emerging field in nanobiotechnology that utilizes eco-friendly materials to implement sustainable processes. In this study, a biological-based strategy using Pelargonium graveolens leaves extract was proposed for the synthesis of chitosan nanoparticles (CNPs). The optimal conditions for biosynthesis were determined, and the synthesized CNPs exhibited efficient antifungal activity against Botrytis cinerea. The study also highlighted the importance of optimizing CNPs concentrations to reduce potential harmful side effects.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Ragaa A. Hamouda, Ghada W. Abou-El-Souod
Summary: Microalgae have diverse applications, with the most important one being the biological treatment of wastewater. This study investigated the factors that have the most significant impact on the simultaneous decolorization of methyl red and lipid production by the microalgae Scenedesmus obliquus. The results showed that microalgae can effectively remove dyes and produce renewable fuels such as biodiesel.
SCIENTIFIC REPORTS
(2022)
Review
Polymer Science
Noura El-Ahmady El-Naggar, WesamEldin I. A. Saber
Summary: This review focuses on the importance and potential applications of microbial melanin, aiming to prompt a comprehensive assessment of this pigment and stimulate further research in the field.
Article
Multidisciplinary Sciences
Ragaa A. Hamouda, Noura El-Ahmady El-Naggar, Ghada W. Abou-El-Souod
Summary: This study explored the potential growth of green microalgae under mixotrophic and heterotrophic conditions using a dye as a carbon source. The results showed that green microalgae can efficiently remove the dye and produce high concentrations of oleic acid, making it suitable for biodiesel production. Heterotrophic cultivation is more cost-effective and easier to set up and maintain compared to mixotrophic cultivation.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Shimaa I. I. Bashir, Nashwa H. H. Rabei, WesamEldin I. A. Saber
Summary: Microbial-based strategy offers advantages in economic, eco-friendly, and biosafety aspects for nanotechnology compared to traditional chemical and physical protocols. This study presents a novel biosynthesis method for chitosan nanoparticles (CNPs) using Streptomyces microflavus strain NEAE-83 and optimizes the biosynthesis process through artificial intelligence. The CNPs exhibit in-vitro antibacterial activity against Pectobacterium carotovorum and hold potential for controlling potato soft rot diseases.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Alaa M. Shiha, Hoda Mahrous, A. B. Abeer Mohammed
Summary: Chitosan nanoparticles (CNPs) are versatile cationic polymeric nanoparticles with high biocompatibility and environmental safety, making them promising for various applications in agriculture, medical, and pharmaceutical fields. In this study, CNPs were successfully biosynthesized using aqueous extract of Eucalyptus globulus Labill fresh leaves, and the optimal conditions for CNPs production were determined. The biosynthesized CNPs showed small and uniform particle size, and exhibited antibacterial activity against multidrug-resistant bacteria. These findings demonstrate the potential of biosynthesized CNPs for diverse medical and pharmaceutical applications.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, A. B. Abeer Mohammed, Sahar E. El-Malkey
Summary: A study was conducted to screen 10 different bacterial strains for their potential to produce bacterial nanocellulose (BNC). Bacillus sp. strain SEE-3 showed the strongest ability to produce BNC. The characteristics of the nanocellulose, including crystallinity, particle size, and morphology, were analyzed. Optimal production conditions for BNC were determined through experimental and theoretical approaches.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Shimaa. R. R. Dalal, Amal. M. M. Zweil, Marwa Eltarahony
Summary: This study presents a biologically-based method for synthesizing chitosan nanoparticles (CNPs) using Olea europaea leaves extract. The optimal conditions for CNPs biosynthesis were determined using a face centered central composite design (FCCCD) and artificial neural network (ANN) analysis. CNPs showed excellent physicochemical properties and antimicrobial activity, making them a promising candidate for applications in controlling multidrug-resistant microorganisms, including post COVID-19 pneumonia in immunosuppressed patients.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Marwa Eltarahony, Elsayed E. Hafez, Shimaa I. Bashir
Summary: Chitosan nanoparticles (CNPs) have excellent physicochemical, antimicrobial, and biological characteristics, making them ideal for a wide range of applications. In this study, CNPs were biofabricated using a biologically based method with an aqueous extract of Lavendula angustifolia leaves as a reducing agent. The CNPs were spherical in shape, ranging in size from 7.24 to 9.77 nm. They exhibited a positive surface charge and showed effective antibiofilm activity against P. aeruginosa, S. aureus, and C. albicans.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Noura El-Ahmady El-Naggar, Nashwa H. Rabei, Mohamed F. Elmansy, Omar T. Elmessiry, Mostafa K. El-Sherbeny, Mohanad E. El-Saidy, Mohamed T. Sarhan, Manar G. Helal
Summary: This study describes the biosynthesis of gold nanoparticles using the cell-free supernatant of Streptomyces flavolimosus. The optimized conditions yielded gold nanoparticles with an absorption peak at 530-535 nm, spherical shape, size range of 4-20 nm, and negatively charged surface capping molecules. The synthesized gold nanoparticles exhibited significant anticancer activities.
SCIENTIFIC REPORTS
(2023)
Article
Biotechnology & Applied Microbiology
Shimaa R. Dalal, Noura El-Ahmady El-Naggar, Gamal A. El Naeem
Summary: The demand for plastic products is increasing due to excess population, but petroleum-based plastics have a significant negative impact on the environment. Innovations are needed to reduce the usage of these plastics and find eco-friendly alternatives. Macroalgal polymers show promise for the production of biodegradable bioplastics without major effects on the food chain. A particular brown seaweed, Padina pavonica, has been studied for its high alginate content for bioplastic production. Optimized conditions for alginate-based bioplastics were determined, and the biodegradability of these bioplastics was assessed.
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2023)
Article
Chemistry, Multidisciplinary
Noura El-Ahmady El-Naggar, Ragaa A. Hamouda, Muhammad A. Abuelmagd, Maha M. Alharbi, Doaa Bahaa Eldin Darwish, Nashwa H. Rabei, Safinaz A. Farfour
Summary: This study examined the biosorption ability of Gelidium amansii biomass for Ni2+ ions in an aqueous solution. The results showed that contact time, temperature, and agitation-static mode were significant factors in the Ni2+ biosorption process. The maximum biosorption percentage reached 100.00% under the experimental conditions of 3-hour incubation time, 100 rpm agitation speed, and 45℃ temperature.
GREEN PROCESSING AND SYNTHESIS
(2022)