keyword
https://read.qxmd.com/read/38535440/a-standardized-extract-of-microalgae-phaeodactylum-tricornutum-mi136-inhibit-d-gal-induced-cognitive-dysfunction-in-mice
#1
JOURNAL ARTICLE
Jonathan Maury, Antoine Delbrut, Vanessa Villard, Rémi Pradelles
The microalgae Phaeodactylum tricornutum (PT) is distinguished by its rich nutrient profile, characterized by well-documented neuroprotective activities, including fucoxanthin (FX), a major carotenoid and polyunsaturated omega-3 fatty acids (n-3 PUFA). The current study aims to evaluate the protective effects of a standardized extract of PT (Mi136) containing 2% FX on cognitive function, oxidative stress, and inflammation parameters in a mouse model of accelerated aging. Seventy-two (72) male mice were randomly assigned to the blank control group (BC), negative control group (NC), and four similar microalgae extract of PT groups (branded as BrainPhyt™) with different human equivalent doses to evaluate potential dose-response effects...
February 21, 2024: Marine Drugs
https://read.qxmd.com/read/38535214/myco-phycobiont-interactions-within-the-ramalina-farinacea-group-a-geographical-survey-over-europe-and-macaronesia
#2
JOURNAL ARTICLE
Patricia Moya, Salvador Chiva, Tamara Pazos, Eva Barreno, Pedro Carrasco, Lucia Muggia, Isaac Garrido-Benavent
Ramalina farinacea is a widely distributed epiphytic lichen from the Macaronesian archipelagos to Mediterranean and Boreal Europe. Previous studies have indicated a specific association between R. farinacea and Trebouxia microalgae species. Here, we examined the symbiotic interactions in this lichen and its closest allies (the so-called " R. farinacea group") across ten biogeographic subregions, spanning diverse macroclimates, analyzing the climatic niche of the primary phycobionts, and discussing the specificity of these associations across the studied area...
March 8, 2024: Journal of Fungi (Basel, Switzerland)
https://read.qxmd.com/read/38534468/advances-in-the-development-of-biofertilizers-and-biostimulants-from-microalgae
#3
REVIEW
Alejandra M Miranda, Fabian Hernandez-Tenorio, Fabian Villalta, Gabriel J Vargas, Alex A Sáez
Microalgae have commercial potential in different sectors of the industry. Specifically in modern agriculture, they can be used because they have the ability to supply nutrients to the soil and produce plant growth hormones, polysaccharides, antimicrobial compounds, and other metabolites that improve agricultural productivity. Therefore, products formulated from microalgae as biofertilizers and biostimulants turn out to be beneficial for agriculture and are positioned as a novel and environmentally friendly strategy...
March 21, 2024: Biology
https://read.qxmd.com/read/38533823/emulgel-based-on-fish-skin-collagen-microalgae-silver-increased-neovascularization-and-re-epithelialization-of-full-thickness-burn-in-rats
#4
JOURNAL ARTICLE
Francisco Fábio Pereira de Souza, Igor Iuco Castro-Silva, Fábia Karine Andrade, Adriano Lincoln Albuquerque Mattos, Mirrael de Sousa Lopes, Wallady da Silva Barroso, Bartolomeu Warlene Silva de Souza, Men de Sá Moreira de Souza-Filho, André Luis Coelho da Silva
Deep skin burn represents a global morbidity and mortality problem, and the limitation of topical treatment agents has motivated research to development new formulations capable of preventing infections and accelerating healing. The aim of this work was to develop and characterize an emulgel based on collagen (COL) and gelatin (GEL) extracted from fish skin associated with Chlorella vulgaris extract (CE) and silver nitrate (AgNO3 ). COL and GEL were characterized by physicochemical and thermal analyses; and CE by electrophoresis and its antioxidant capacity...
April 2024: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://read.qxmd.com/read/38533661/slightly-acidic-electrolyzed-water-significantly-restrains-the-accumulation-of-the-microalgae-pseudokirchneriella-subcapitata-in-hydroponic-systems
#5
JOURNAL ARTICLE
Cuinan Wu, Yuanyuan Li, Xue Wu, Encai Bao, Lin Ye, Kai Cao
AIMS: This study explored the effects of slightly acidic electrolyzed water (SAEW) on algae to exploit technologies that effectively suppress algal growth in hydroponic systems and improve crop yield. METHODS AND RESULTS: The effects of SAEW on algal growth and the response mechanisms of algae to SAEW were investigated. Moreover, we studied whether the application of SAEW adversely affected tomato seedling growth. The results showed that SAEW significantly inhibited algal growth and destroyed the integrity of the algal cells...
March 26, 2024: Journal of Applied Microbiology
https://read.qxmd.com/read/38531442/harmony-in-detoxification-microalgae-unleashing-the-potential-of-lignocellulosic-pretreatment-wastewater-for-resource-utilization
#6
JOURNAL ARTICLE
Huiying Wang, Lei Qin, Wei Qi, Mostafa Elshobary, Wen Wang, Pingzhong Feng, Zhongming Wang, Shunni Zhu
Lignocellulosic biomass is a pivotal renewable resource in biorefinery process, requiring pretreatment, primarily chemical pretreatment, for effective depolymerization and subsequent transformation. This process yields solid residue for saccharification and lignocellulosic pretreatment wastewater (LPW), which comprises sugars and inhibitors such as phenols and furans. This study explored the microalgal capacity to treat LPW, focusing on two key hydrolysate inhibitors: furfural and vanillin, which impact the growth of six green microalgae...
March 24, 2024: Science of the Total Environment
https://read.qxmd.com/read/38531138/exploring-effects-of-carbon-nitrogen-and-phosphorus-on-greywater-treatment-by-polyculture-microalgae-using-response-surface-methodology-and-machine-learning
#7
JOURNAL ARTICLE
Aggarwal Mohit, Neelancherry Remya
The microalgae-based wastewater treatment is a promising technique that contribute to achieving sustainable development goals (SDGs), such as SDG-6, "Clean Water and Sanitation". However, it is strongly influenced by the initial composition of wastewater. In this study, the impact of initial organics and nutrient concentration on the removal of total organic carbon (TOC), total carbon (TC), ammonium (NH4 + ), total nitrogen (TN), and phosphate (PO4 3- ) from greywater using native polyculture microalgae was explored...
March 25, 2024: Journal of Environmental Management
https://read.qxmd.com/read/38529840/microalgae-as-a-potential-natural-source-for-the-green-synthesis-of-nanoparticles
#8
REVIEW
Ariana A Arteaga-Castrejón, Vivechana Agarwal, Sanghamitra Khandual
The increasing global population is driving the development of alternative sources of food and energy, as well as better or new alternatives for health and environmental care, which represent key challenges in the field of biotechnology. Microalgae represent a very important source material to produce several high-value-added bioproducts. Due to the rapid changes in the modern world, there is a need to build new materials for use, including those in the nanometer size, although these developments may be chronological but often do not occur at a time...
March 26, 2024: Chemical Communications: Chem Comm
https://read.qxmd.com/read/38528874/ruminal-inocula-with-distinct-fermentation-profiles-differentially-affect-the-in-vitro-fermentation-pattern-of-a-commercial-algal-blend
#9
JOURNAL ARTICLE
Cátia S C Mota, Margarida R G Maia, Inês M Valente, Ana R J Cabrita, António J M Fonseca
The in vitro rumen batch technique is widely used for screening novel feed sources; however, it remains unclear to what extent the in vitro fermentability of non-conventional feed sources is affected by non-adapted ruminal inocula. Thus, in this study, we evaluated the effects of distinct ruminal inocula on the in vitro fermentation parameters of a sustainable non-conventional feed, a commercially available algal blend composed of microalgae ( Chlorella vulgaris and Nannochloropsis oceanica ) and seaweeds ( Ulva sp...
2024: Frontiers in Veterinary Science
https://read.qxmd.com/read/38527454/emerging-and-novel-elicitors-of-anaphylaxis-collegium-internationale-allergologicum-update-2024
#10
REVIEW
Regina Treudler
BACKGROUND: Anaphylaxis represents the most severe end of the spectrum of allergic reactions. Frequent elicitors of anaphylaxis are insects, foods, and drugs. This paper summarizes recent development with regard to emerging and novel elicitors of anaphylaxis. SUMMARY: Food allergens on the rise include pulses (like pea, chickpea), seeds (hemp, chia), nuts (cashew), pseudograins (buckwheat, quinoa), fruits, and microalgae. Novel foods are foods that were not consumed to any significant extent in the European Union before May 1997, which includes four edible insects (mealworm, migratory locust, house cricket, and buffalo worm)...
March 25, 2024: International Archives of Allergy and Immunology
https://read.qxmd.com/read/38525815/resolving-phytosterols-in-microalgae-using-offline-two-dimensional-reversed-phase-liquid-chromatography-supercritical-fluid-chromatography-coupled-with-quadrupole-time-of-flight-mass-spectrometry
#11
JOURNAL ARTICLE
Magali Batteau, Elodie Bouju, Adriana Ramirez-Romero, Sylvie Nuccio, René De Vaumas, Florian Delrue, Karine Faure
Sterols are unsaponifiable lipids resulting from plant metabolism that exhibit interesting bioactive properties. Microalgae are a major source of specific phytosterols, most of which are still not fully characterized. The similarity in sterol structures and the existence of positional isomers make the separation of phytosterols challenging. A method was developed based on an offline two-dimensional (2D) system, reversed-phase liquid chromatography (RPLC)-supercritical fluid chromatography (SFC)/quadrupole time-of-flight (Q-ToF) mass spectrometry, for the identification of sterols in microalgae...
March 25, 2024: Analytical Methods: Advancing Methods and Applications
https://read.qxmd.com/read/38525139/editorial-the-performance-and-adaptation-of-aquatic-plants-under-global-changes
#12
EDITORIAL
Guixiang Yuan, Zhongqiang Li, Jianming Deng, Juan Pablo Pacheco, Hui Fu
No abstract text is available yet for this article.
2024: Frontiers in Plant Science
https://read.qxmd.com/read/38522678/dual-disintegration-of-microalgae-biomass-for-cost-effective-biomethane-production-energy-and-cost-assessment
#13
JOURNAL ARTICLE
Yukesh Kannah Ravi, S Kavitha, Siham Y Al-Qaradawi, J Rajesh Banu
The present study aims to enhance the biomethane production potential of microalgae via a dual disintegration process. During this process, the microalgae biomass was firstly subjected to cell wall weakening by thermochemical disintegration (TC) (50 to 80 °C), pH adjustment with alkali, NaOH (6 to 10) and time (0 to 10 min) and, secondly, by bacterial disintegration (BD). TC-BD disintegration was comparatively higher (33 %) than BD (24 %), TC (8.5 %), and control (7 %)...
March 22, 2024: Bioresource Technology
https://read.qxmd.com/read/38522526/mitigating-salinity-stress-through-interactions-between-microalgae-and-different-forms-free-living-alginate-gel-encapsulated-of-bacteria-isolated-from-estuarine-environments
#14
JOURNAL ARTICLE
Wang Tong, Li Dan, Abeselom Ghirmai Woldemicael, Tian Xin, Huang Guolin, Kumbha Ali Nawaz, He Meilin, Wang Changhai
Salinity stress in estuarine environments poses a significant challenge for microalgal survival and proliferation. The interaction between microalgae and bacteria shows promise in alleviating the detrimental impacts of salinity stress on microalgae. Our study investigates this interaction by co-cultivating Chlorella sorokiniana, a freshwater microalga, with a marine growth-promoting bacterium Pseudomonas gessardii, both of which were isolated from estuary. In this study, bacteria were encapsulated using sodium alginate microspheres to establish an isolated co-culture system, preventing direct exposure between microalgae and bacteria...
March 22, 2024: Science of the Total Environment
https://read.qxmd.com/read/38522275/exploring-microalgal-nutrient-light-synergy-to-enhance-co-2-utilization-and-lipid-productivity-in-sustainable-long-term-water-recycling-cultivation
#15
JOURNAL ARTICLE
Deepesh Singh Chauhan, Kaustubha Mohanty
In this work the effects of nutrient availability and light conditions on CO2 utilization and lipid production in Micractinium pusillum KMC8 is reported. The study investigated the ideal nitrogen concentrations for growth and nitrogen utilization in a 15% CO2 environment. Logistic and Gompertz models were employed to analyze the kinetics of KMC8 cell growth. Compared to 17.6 mmol L-1 control nitrogen, which generated 1.6 g L-1 growth, doubling and quadrupling nitrogen concentrations boosted biomass growth by 12...
March 23, 2024: Journal of Environmental Management
https://read.qxmd.com/read/38521782/potential-use-of-sludge-from-el-ferrol-bay-chimbote-peru-for-the-production-of-lipids-in-the-culture-of-scenedesmus-acutus-meyen-1829
#16
JOURNAL ARTICLE
Fernando Merino, Sorayda Mendoza, Juan Carhuapoma-Garay, Luis Campoverde-Vigo, Yolanda P Huamancondor-Paz, Yudith Choque-Quispe, Dianeth Buleje Campos, David Choque-Quispe, Liliana Rodriguez-Cardenas, Guillermo B Saldaña-Rojas, Rómulo E Loayza-Aguilar, Gustavo E Olivos-Ramirez
Despite the extensive development of microalgae biotechnology, it still requires new methodologies to lower production costs, especially in the field of biofuel production. Therefore, innovative methods that facilitate operations and enable cost-effective production are important in driving this industry. In this study, we propose a new low-cost and easy-to-use procedure, addressed to the generation of a culture medium for Scenedesmus acutus. The medium was obtained by thermal reduction of a sludge sample from El Ferrol Bay (Chimbote, Peru), whereby we obtained an aqueous medium...
March 23, 2024: Scientific Reports
https://read.qxmd.com/read/38521173/productivity-amino-acid-profile-and-protein-bioaccessibility-in-heterotrophic-batch-cultivation-of-galdieria-sulphuraria
#17
JOURNAL ARTICLE
F Abiusi, B Tumulero, L Neutsch, A Mathys
The polyextremophilic Galdieria sulphuraria is emerging as a promising microalgal species for food applications. This work explores the potential of heterotrophically cultivated G. sulphuraria as a protein producer for human consumption. To this end, the performances of four G. sulphuraria strains grown under the same conditions were compared. Amino acid profiles varied among strains and growth phases, but all samples met FAO dietary requirements for adults. The specific growth rates were between 1.01 and 1...
March 21, 2024: Bioresource Technology
https://read.qxmd.com/read/38520966/effects-of-hco-3-and-co-2-conversion-rates-on-carbon-assimilation-strategies-in-marine-microalgae-implication-by-stable-carbon-isotope-analysis-of-fatty-acids
#18
JOURNAL ARTICLE
Weijia Fan, Yu Liu, Xiaohan Xu, Xu Dong, Haixia Wang
Marine microalgae are an essential component of marine plankton and critical primary producers, playing a vital role in marine ecosystems. The seawater carbonate system is a dynamic equilibrium system, and changes in any component can alter the carbonate balance. In CO2 -concentrating mechanisms (CCMs), carbonic anhydrase (CA) regulates CO2 concentration by catalyzing the interconversion between CO2 and HCO3 - . Therefore, limiting the activity of extracellular carbonic anhydrase (exCA) alters the rate at which carbonate equilibrium is reached and further affects the carbon assimilation process in microalgae...
March 16, 2024: Plant Physiology and Biochemistry: PPB
https://read.qxmd.com/read/38520898/integrated-nutrient-recycling-ammonia-recovery-from-thermophilic-composting-of-shrimp-aquaculture-sludge-via-self-heated-bench-scale-reactor-and-mango-plant-growth-enhancement-by-the-compost
#19
JOURNAL ARTICLE
Hieng Ong Tie, Hasfalina Che Man, Mitsuhiko Koyama, Fadhil Syukri, Fatimah Md Yusoff, Tatsuki Toda, Kiyohiko Nakasaki, Norulhuda Mohamed Ramli
Due to the rapid growth of the aquaculture industry, large amounts of organic waste are released into nature and polluted the environment. Traditional organic waste treatment such as composting is a time-consuming process that retains the ammonia (NH3 ) in the compost, and the compost produced has little economic value as organic fertilizer. Illegal direct discharge into the environment is therefore widespread. This study investigates the recovery of NH3 through thermophilic composting of shrimp aquaculture sludge (SAS) and its application as a soil conditioner for the growth of mango plants...
March 22, 2024: Waste Management
https://read.qxmd.com/read/38520892/effects-of-high-pressure-homogenization-and-ultrasound-on-the-composition-structure-and-physicochemical-properties-of-proteins-extracted-from-nannochloropsis-oceania
#20
JOURNAL ARTICLE
Wee Jian Cedric Sow, Juan Du
This study examined the effects of high-pressure homogenization (HPH) and ultrasonication pre-treatment on the structural and physicochemical properties of proteins extracted from defatted Nannochloropsis Oceania biomass (DNOB). HPH treatment was found to enhance the solubility of protein extracted from DNOB compared to ultrasound, where samples pretreated with three passes (3P) of HPH exhibited lower solubility than two passes (2P). The morphology of extracted samples was visualized by scanning electron microscopy, which HPH pre-treatment, especially with more passes, were able to breakdown DNOB into fragments...
March 20, 2024: Ultrasonics Sonochemistry
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