Article
Plant Sciences
Maria Belen Perez, Sofia Carvajal, Vanesa Beretta, Florencia Bannoud, Maria Florencia Fangio, Federico Berli, Ariel Fontana, Maria Victoria Salomon, Roxana Gonzalez, Lucia Valerga, Jorgelina C. Altamirano, Mehtap Yildiz, Massimo Iorizzo, Philipp W. Simon, Pablo F. Cavagnaro
Summary: The present study characterized a diverse collection of purple and non-purple carrot accessions for their concentration of anthocyanins, phenolics, carotenoids, and antioxidant capacity. Significant variation was found among the accessions, with acylated anthocyanins being the most dominant pigment. Purple carrots exhibited higher levels of anthocyanins, phenolics, and antioxidant capacity compared to non-purple carrots. Antioxidant capacity was positively correlated with anthocyanin content and total phenolic content, but not with carotenoids. Certain accessions were identified as potential sources for food dyes or increased nutraceutical value.
Article
Nutrition & Dietetics
Mikayla S. Kaeppler, Jordan B. Smith, Christopher R. Davis, Philipp W. Simon, Sherry A. Tanumihardjo
Summary: Two studies on weanling male Mongolian gerbils examined the relative bioefficacy of non-provitamin A carotenoids (PAC) - lycopene or anthocyanins from multicolored carrots - to vitamin A (VA). The results showed that simultaneous consumption of these phytochemicals did not affect the relative bioefficacy of BCE.
JOURNAL OF NUTRITION
(2023)
Article
Plant Sciences
Tong Li, Yuan-Jie Deng, Jie-Xia Liu, Ao-Qi Duan, Hui Liu, Ai-Sheng Xiong
Summary: This study revealed that DcCCD4 plays a significant role in the accumulation of carotenoids in carrot taproots by cleaving alpha- and beta-carotene, which affects the color of the taproot.
Article
Engineering, Environmental
Louis-B Jugnia, Dominic Manno, Abraham Gomez Vidales, Sabahudin Hrapovic, Boris Tartakovsky
Summary: This study demonstrated that the efficiency of removing selenite and selenate in bioelectrochemical barriers is significantly higher compared to anaerobic biobarriers. By simultaneously operating multiple setups and adjusting operating parameters, enhanced removal of selenium species under bioelectrochemical conditions was achieved.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Horticulture
Patriciani Estela Cipriano, Matias Siueia Junior, Ray Rodrigues de Souza, Deivisson Ferreira da Silva, Rodrigo Fonseca da Silva, Valdemar Faquin, Maria Ligia de Souza Silva, Luiz Roberto Guimaraes Guilherme
Summary: This study evaluated the suitability of radish as an agricultural crop for selenium biofortification and investigated the effects of different selenium doses and sources on macronutrient accumulation and absorption. The results showed that applying selenium as selenate can increase potassium content without reducing radish production, making it an effective method for selenium biofortification.
SCIENTIA HORTICULTURAE
(2022)
Article
Chemistry, Applied
Christophe Aubert, Marie Bruaut, Guillaume Chalot
Summary: This study analyzed the primary and secondary metabolites in different parts of two orange carrots, highlighting the considerable variation in levels between tissues and sections. The peel was found to have higher levels of citric acid, gamma-tocopherol, 6-methoxymellein, falcarindiol, and most polyphenols and terpenes, while lower levels of sugars, alpha-tocopherol, and falcarinol. Lutein was mainly localized in the xylem. The sucrose, carotenoid, alpha-tocopherol, and falcarindiol acetate contents decreased from the top sections to the bottom sections. Most polyphenols showed similar patterns in the peel, while malic acid showed a similar pattern in the phloem. Falcarinol content decreased in the top sections of the phloem but increased in the xylem. No clear trend was observed for gamma-tocopherol and ascorbic acid.
JOURNAL OF FOOD COMPOSITION AND ANALYSIS
(2022)
Article
Agronomy
Lorena Martinez-Zamora, Noelia Castillejo, Perla A. Gomez, Francisco Artes-Hernandez
Summary: The study showed that lighting conditions improved the total antioxidant activity and increased bioactive compounds in carrot sprouts, but darkness treatment resulted in longer hypocotyl and sprout length. LEDs treatments (B+R and B+R+FR) significantly increased the phenolic compound content in sprouts.
Article
Chemistry, Applied
Bruno Stefani Esposto, Sabrina Guarda Botelho Pinho, Marcelo Thomazini, Ana Paula Ramos, Delia Rita Tapia-Blacido, Milena Martelli-Tosi
Summary: This study aimed to extract bioactive compounds from carrot by-products and evaluated their chemical stability after encapsulation in chitosan-coated TPP-Ch particles. The results showed that the encapsulation efficiency for carotenoids and total phenolic compounds reached over 75%. Furthermore, the TPP-Ch particles demonstrated better stability for carotenoids in various experimental conditions, making them suitable for application in the food industry and aqueous matrices.
Article
Plant Sciences
Tomasz Oleszkiewicz, Michal Kruczek, Rafal Baranski
Summary: This study demonstrates that the accumulation of carotenoids in carrot cells is affected by nitrogen concentration and the ratio of nitrate to ammonium, while other components in the media do not significantly impact carotenoid content or callus growth.
Article
Biotechnology & Applied Microbiology
Abraham Palacios-Velasquez, Violeta Quispe-Coquil, Enzo Martin Casimiro-Soriano, Karla Milagros Tapia-Zarate, Alex Ruben Huaman-de la Cruz
Summary: Bioethanol was successfully obtained from carrot residues using a specific enzymatic hydrolysis and fermentation process. The resulting product exhibited superior ethanol content and net calorific value compared to previous studies.
FERMENTATION-BASEL
(2023)
Review
Agronomy
Lucija Galic, Tomislav Vinkovic, Boris Ravnjak, Zdenko Loncaric
Summary: Selenium is an important micronutrient essential for most living organisms, with benefits for humans, animals, and plants. Selenium deficiency is a global issue, and agronomic biofortification is an effective strategy to increase selenium content in edible parts of plants.
Article
Plant Sciences
Petar Mitrovic, Ivica Djalovic, Biljana Kiprovski, Sonja Veljovic Jovanovic, Vojislav Trkulja, Aleksandra Jelusic, Tatjana Popovic
Summary: The study found that infection by Candidatus Phytoplasma solani caused abnormal growth in carrot plants, leading to symptoms such as leaf chlorosis and reddening, affecting antioxidative metabolism and chlorophyll content.
Article
Crystallography
Gabriel L. Murphy, Philip Kegler, Eike M. Langer, Evgeny V. Alekseev
Summary: In this study, novel uranyl selenate and selenite compounds were synthesized using hydrothermal and slow evaporation methods, exhibiting different structural characteristics. The structures of these compounds were refined using single crystal X-ray diffraction, providing insights into the role of acidity in influencing the formation of specific structures, functional groups, and topologies in uranyl selenates and selenites.
Article
Biotechnology & Applied Microbiology
Muhammad Omer Iqbal, Asad Saleem Sial, Imran Akhtar, Muhammad Naeem, Abu Hazafa, Rais A. Ansari, Syed A. A. Rizvi
Summary: The study investigated the nephroprotective effects of Daucus carota and Eclipta prostrata extracts on cisplatin-induced nephrotoxicity, showing significant improvements at a dose rate of 600 mg/kg.
Article
Green & Sustainable Science & Technology
Anna Bonasia, Giulia Conversa, Corrado Lazzizera, Giuseppe Gambacorta, Antonio Elia
Summary: The exploration in the sandy shores of Salterns of Margherita di Savoia revealed the cultivation of local carrot landraces with high nutritional and nutraceutical properties, driven by the pedological conditions of the area. Variability in morpho-qualitative traits among carrot genotypes and the potential of a specific landrace, Carota a punta tonda, as a healthy product rich in phenols and beta-carotene were identified, suggesting the importance of on-farm conservation for biodiversity preservation.
Article
Agronomy
Bruna Wurr Rodak, Douglas Siqueira Freitas, Leonardo Franco Bernardes, G. J. E. O. Lima, A. R. Reis, Jose Lavres Junior, Luiz Roberto Guimaraes Guilherme
Summary: The study found that nickel-enriched soil acidity amendments can have short-term positive effects on soybean yield and growth, but the efficacy of nickel decreases in the second year. By adjusting nickel fertilization, crop yield and base saturation can be improved, optimizing soil management practices over time.
ARCHIVES OF AGRONOMY AND SOIL SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Marcelo Henrique Procopio Pelegrino, Sergio Henrique Godinho Silva, Alvaro Jose Gomes de Faria, Marcelo Mancini, Anita Fernanda dos Santos Teixeira, Somsubhra Chakraborty, David C. Weindorf, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: Precision agriculture uses proximal sensors to accurately predict soil properties, reducing costs of traditional wet-chemistry analyses. This study aimed to predict exchangeable Ca2+ and available K+ and P in tropical soils using pXRF data, finding reliable predictions for Ca2+ and P but unsuccessful for K+. Testing multiple prediction models is important for precision agriculture, and fusion of data from different sensors may enhance predictions.
PRECISION AGRICULTURE
(2022)
Article
Soil Science
Fernanda Magno Silva, Sergio Henrique Godinho Silva, Anita Fernanda Dos Santos Teixeira, Alberto Vasconcellos Inda, Tatiele Fruett, David C. Weindorf, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: Proximal sensors such as pXRF, Vis-NIR, and magnetic susceptibilimeter have been used to investigate the chemical, physical, and mineralogical properties of soils. This study aims to differentiate soil classes with similar pedogenetic development but different parent materials using the association of these sensors. The results show that pXRF analysis and magnetic susceptibility are decisive in distinguishing soil classes based on parent material, while Vis-NIR provides spectral responses reflecting mineralogical differences. Proximal sensors contribute to the differentiation of soil properties within the same parent material and within soils of the same taxonomic order but different parent materials, improving soil characterization and genesis evaluations at reduced time and costs.
Article
Plant Sciences
Ruby Vega-Ravello, Maria Belen Romero-Poma, Cynthia de Oliveira, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study aimed to investigate the effects of soil selenium application on the selenium content and tolerance of quinoa plants under water deficit conditions. The results showed that appropriate selenium application increased the grain dry mass and selenium content of quinoa grains, and improved the photosynthetic rate and antioxidant activity of quinoa under water deficit conditions.
JOURNAL OF SOIL SCIENCE AND PLANT NUTRITION
(2023)
Article
Soil Science
Marcelo Mancini, Renata Andrade, Anita Fernanda dos Santos Teixeira, Sergio Henrique Godinho Silva, David C. Weindorf, Somsubhra Chakraborty, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: Proximal sensing has gained popularity in soil science with various sensors and data processing methods being tested. The study aimed to provide guidance for predicting macronutrient levels and soil acidity using different sensor combinations. The best results were achieved by combining all sensors, with pXRF data playing a key role in improving predictions. Model separation by soil order was found to enhance predictions, particularly for Ultisols.
Article
Environmental Sciences
Lais L. Silva, Marina M. Feitosa, Emerson F. Vilela, Guilherme Lopes, Luiz R. G. Guilherme, Yuri L. Zinn
Summary: High levels of arsenic were found in soils developed from ultramafic rocks in Brazil, but the arsenic was mainly contained in resistant phases and bound to secondary iron oxides. The availability of arsenic varied among soils, with some soils showing low availability and others showing high availability. Generally, the high arsenic contents in these soils do not raise immediate concerns, but the release of arsenic in groundwater and surface water deserves further investigation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Paula Godinho Ribeiro, Gabriel Caixeta Martins, Xueqiang Zhu, Yuncong C. Li, Luiz Roberto Guimaraes Guilherme
Summary: This study evaluated the effectiveness of a soil amendment called HydroPotash (HYP) in immobilizing cadmium (Cd) in acidic soils and reducing its accumulation in rice tissues. The results showed that HYP significantly increased soil solution pH and electrical conductivity, reduced soluble Cd concentration, promoted rice growth, and minimized Cd accumulation in rice grains.
ENVIRONMENTAL RESEARCH
(2022)
Article
Geochemistry & Geophysics
Sergio Henrique Godinho Silva, Diego Ribeiro, Thais Santos Branco Dijair, Fernanda Magno Silva, Anita Fernanda dos Santos Teixeira, Renata Andrade, Marcelo Mancini, Luiz Roberto Guimaraes Guilherme, Nilton Curi
Summary: This study aims to evaluate the chemical composition of different quartz varieties using a portable X-ray fluorescence (pXRF) spectrometer and relate them to soil attributes. Hyaline quartz had the highest SiO2 content and the lowest contents of other elements. Random Forest algorithm identified SiO2, oxides, chlorine, sulfur, phosphorus pentoxide, and potassium oxide as the main components for discriminating quartz varieties. pXRF provided enhanced information on the chemical characterization of quartz varieties without generating chemical pollutants.
Article
Food Science & Technology
Maila Adriely Silva, Gustavo Ferreira de Sousa, Gary Banuelos, Douglas Amaral, Patrick H. Brown, Luiz Roberto Guimaraes Guilherme
Summary: This study aimed to evaluate the effect of different selenium application methods (soil or foliar) and sources (organic or inorganic) on the total selenium content and speciation in selenium-enriched soybean grains. The results showed that all treatments with inorganic selenium increased the selenium content in grains compared to the control. More than 80% of the total selenium was present as selenomethionine (SeMet), and the speciation was influenced by the selenium source and application method. The treatments using inorganic selenium, applied via soil or foliar, produced the highest content of SeMet in soybean grains. Finally, the preservation of selenium species in products derived from soybean grains should be evaluated.
Article
Food Science & Technology
Patriciani Estela Cipriano, Rodrigo Fonseca da Silva, Cynthia de Oliveira, Alexandre Boari de Lima, Fabio Aurelio Dias Martins, Gizele Celante, Alcindo Aparecido dos Santos, Marcos Vinicio Lopes Rodrigues Archilha, Marcos Felipe Pinatto Botelho, Valdemar Faquin, Luiz Roberto Guimaraes Guilherme
Summary: Agronomic biofortification with selenium can effectively increase the nutritional intake and grain yield of sorghum. Sodium selenate is more efficient compared to organoselenium compounds, but acetylselenide has a positive effect on the antioxidant system.
Article
Plant Sciences
Maila Adriely Silva, Gustavo Ferreira de Sousa, Gustavo Avelar Zorgdrager Van Opbergen, Guilherme Gerrit Avelar Zorgdrager Van Opbergen, Ana Paula Branco Corguinha, Jean Michel Moura Bueno, Gustavo Brunetto, Jose Marcos Leite, Alcindo Aparecido dos Santos, Guilherme Lopes, Luiz Roberto Guimaraes Guilherme
Summary: This study investigated the effects of selenium foliar application combined with a multi-nutrient fertilizer on soybean. The results showed that grain yield of soybean increased with the application of multi-nutrient fertilizer, while selenium rates linearly increased selenium contents up to 80 g Se ha(-1), regardless of the use of multi-nutrient fertilizer. The two genotypes (58I60 Lanca and M5917) had critical thresholds of 1.0 and 3.0 mg kg(-1) for grain selenium content, respectively. Selenium application promoted higher contents of K, P, and S in grains of genotype Lanca and higher contents of Mn and Fe in grains of genotype M5917. The findings highlight the importance of considering different fertilization strategies and genotypic variations when assessing the effects of selenium on soybean yield and grain quality.
Article
Plant Sciences
Jucelino de Sousa Lima, Otavio Vitor Souza Andrade, Leonidas Canuto dos Santos, Everton Geraldo de Morais, Gabryel Silva Martins, Yhan S. Mutz, Vitor L. Nascimento, Paulo Eduardo Ribeiro Marchiori, Guilherme Lopes, Luiz Roberto Guimaraes Guilherme
Summary: Water deficit inhibits plant growth and leads to overproduction of reactive oxygen species (ROS), causing oxidative stress. Iodine (I) has been shown to enhance the antioxidant defense system and improve photosynthesis under adverse conditions. In this study, soybean plants exposed to potassium iodide (KI) concentrations of 10 and 20 .mol L-1 showed increased biomass, improved gas exchange, and reduced lipid peroxidation under water deficit. However, higher KI concentrations negatively affected photosynthetic efficiency, biomass accumulation, and partition under well-irrigated conditions.
Article
Plant Sciences
Gustavo Ferreira de Sousa, Maila Adriely Silva, Mariana Rocha de Carvalho, Everton Geraldo de Morais, Pedro Antonio Namorato Benevenute, Gustavo Avelar Zorgdrager Van Opbergen, Guilherme Gerrit Avelar Zorgdrager Van Opbergen, Luiz Roberto Guimaraes Guilherme
Summary: This study aimed to investigate the role of Se supply in improving osmotic stress tolerance in coffee seedlings while also evaluating the best timing for Se application. Results demonstrated that osmotic stress promoted mild stress in the coffee plants and led to starch degradation. Seedlings that received foliar Se application 8 days before the stress exhibited higher antioxidant enzyme activity compared to the control group.
Article
Agriculture, Multidisciplinary
Suellen Nunes de Araujo, Jessica Francisco Raymundo, Fabio Freire Ribeiro Costa, Josimar Henrique de Lima Lessa, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study evaluated the effectiveness of different selenium application methods and rates for biofortification of common bean, and assessed the residual effects of soil selenium additions on subsequent growth of Mombaga grass. The results showed that using selenium-enriched urea, selenium foliar application, and a combination of both methods were more effective in increasing selenium contents in common bean grains. Additionally, the methods of selenium addition via soil using fertilizers as carriers showed potential residual effects on succeeding crops, as evidenced by increased selenium contents in Mombaga grass shoots.
CROP & PASTURE SCIENCE
(2022)
Article
Agriculture, Multidisciplinary
Ruby Antonieta Vega Ravello, Cynthia de Oliveira, Josimar Lessa, Lissa Vasconcellos Vilas Boas, Evaristo Mauro de Castro, Luiz Roberto Guimaraes Guilherme, Guilherme Lopes
Summary: This study showed that agronomic biofortification with selenium can enhance the tolerance of common bean plants to water deficit conditions, with positive effects seen at lower rates of selenium application. The enrichment of common bean grains with selenium demonstrated improved plant defense systems and nutrient accumulation without compromising biomass production under water deficit stress.
CROP & PASTURE SCIENCE
(2022)