13 documents found, page 1 of 2
Antioxidant and antimicrobial activity characteristics of seven biopreparations...
Simões, Joana; Peleja, Ana; Neves, Cláudia M.B.; Costa, Daniela V.T.A.; Correia, Helena Esteves; Pinto, António; Wessel, Dulcineia; Delgado, F.M.G.Agroecological transition is a major societal challenge and it is urgent to support technical solutions to answer farmers demand towards the necessary changes. The project RESTORE - biopReparados Em SisTemas prOdução agRoEcológicos aimed to study and validate the production, conservation, and use of seven biopreparations by characterizing and testing them in lettuce nurseries. The biopreparations used include p...
Biostimulants in organic vegetable nurseries: Study case in lettuce
Simões, Joana; Marmota, Carolina; Moreira, Lisa; Costa, Daniela V.T.A.; Correia, Helena E.; Pinto, António; Wessel, Dulcineia; Delgado, F.M.G.In order to create better conditions to achieve food safety and sovereignty, agroecology, as a science, looks for solutions for several steps of the technical itineraries of the crops. Crop nutrition and protection are two main crop itinerary components that have been in the center of farmers challenges and consumers concerns, and biopreparations, which have been prepared using natural substances, have been use...
Seaweed Polysaccharides in Agriculture: A Next Step towards Sustainability
Mamede, Mariana; Cotas, João; Bahcevandziev, Kiril; Pereira, LeonelThe seaweed-based biostimulants available in the market are proven to achieve better results than synthetic commercial fertilizers in plant growth parameters. There are many compounds present in seaweeds that are responsible for the plant bioactivities. Seaweed polysaccharides, such as agar, alginate, and carrageenan, make up most of the seaweed biomass and are proven to achieve excellent results in agricultura...
A Possible Synergistic Approach: Case Study of Saccharina latissima Extract and...
Pacheco, Diana; Cotas, João; Pereira, Leonel; Bahcevandziev, KirilNowadays, the exponential expansion in human population has resulted in the massification of intensive agricultural practices, with crop yield and sustainability being one of the most pressing challenges. Therefore, there was a need for new and natural fertilizers and pesticides, which has become a popular agricultural trend nowadays. Therefore, there was an increased interest to apply seaweed and bacterial ext...
Use of Chlorella vulgaris and Ulva lactuca as Biostimulant on Lettuce
Ammaturo, Chiara; Pacheco, Diana; Cotas, João; Formisano, Luigi; Ciriello, Michele; Pereira, Leonel; Bahcevandziev, KirilThe important purpose of this work is to evaluate the biostimulant activity of the algae Chlorella vulgaris and Ulva lactuca extracts on the crop plants Lactuca sativa, to compare the effect of these two green algae on plant growth and development as a part of a sustainable plant production method and show that these extracts can be a promissory source for replacing chemical fertilization. The study faces all t...
Seaweeds’ carbohydrate polymers as plant growth promoters
Pacheco, Diana; Cotas, João; Rocha, Carolina P.; Araújo, Glacio S.; Figueirinha, Artur; Gonçalves, Ana M. M.; Bahcevandziev, Kiril; Pereira, LeonelCurrently, the high food demand led to a mass agriculture practices, whereas crop productivity is one of the major concerns for the producers. However, the intensification of the use of synthetic fertilizers has led to serious harmful impacts for human health and for the environment. The quest for novel and natural agricultural products is a current trend, hence seaweed polysaccharide bioactivity can contribute...
Portuguese Kelps: Feedstock Assessment for the Food Industry
Pacheco, Diana; Miranda, Giuseppe; Rocha, Carolina P.; Pato, Rosinda L.; Cotas, João; Gonçalves, Ana M. M.; Santos, Sandra M. Dias; Bahcevandziev, KirilSeaweeds have been incorporated in the daily diet of several human cultures since ancient times, due to their nutritional characteristics and healthy properties. The brown seaweeds Undaria pinnatifida, Saccharina latissima, Sacchoriza polyschides, and Laminaria ochroleuca were collected in the Viana do Castelo (Portugal) bay to assess their proximate composition analysis. As a result, the algal biomass was drie...
Seaweed Potential in the Animal Feed: A Review
Morais, Tiago; Inácio, Ana; Coutinho, Tiago; Ministro, Mariana; Cotas, João; Pereira, Leonel; Bahcevandziev, KirilSeaweed (known as marine algae) has a tradition of being part of the animal feed in the coastal areas, from ancient times. Seaweeds, are mixed with animal feed, because when consumed alone can have negative impact on animals. Thus, seaweeds are very rich in useful metabolites (pigments, carotenoids, phlorotannins, polyunsaturated fatty acids, agar, alginate and carrageenan) and minerals (iodine, zinc, sodium, c...
Seaweed-Based Products and Mushroom β-Glucan as Tomato Plant Immunological Indu...
Melo, Paulo César de; Collela, Carolina Figueiredo; Sousa, Tiago; Pacheco, Diana; Cotas, João; Gonçalves, Ana M. M.; Bahcevandziev, KirilThe effects of the abiotic inducers β-glucan, extracted from Shiitake (Lentinula edodes), BFIICaB® (Kappaphycus alvarezii) and BKPSGII® (K. alvarezii X Sargassum sp.) on tomato plants infected with Fusarium oxysporum f. sp. lycopersici (FOL) were evaluated through the activity of enzymes related to the induction of resistance at 5 and 10 days after inoculation (DAI). Tomato plants (21 days old, after germinatio...
Biostimulant Effect of Marine Macroalgae Bioextract on Pepper Grown in Greenhouse
Melo, Paulo; Abreu, Carlos; Bahcevandziev, Kiril; Araujo, Glácio; Pereira, LeonelMarine macroalgae are a vast source of raw materials and biologically active molecules used in the pharmaceutical, cosmetic, food and agricultural industries. The search for a food free of chemical residues by consumers has led producers to use environmentally friendly and economically viable products as they are a source of natural compounds, forming a new and promising area of study. In this context, concentr...