Article
Materials Science, Multidisciplinary
Citlali Alejandra Marin-Flores, Odin Rodriguez-Nava, Margarita Garcia-Hernandez, Rosario Ruiz-Guerrero, Fernando Juarez-Lopez, Angel de Jesus Morales-Ramirez
Summary: ZnO particles were synthesized and their free radical scavenging activity properties were evaluated in this study. The results showed that the scavenging activity increased with smaller particle size and lower ZnO dosage. A pseudo-first-order kinetics model may be present in the reaction.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Agronomy
Sorin Ciulca, Gheorghe Roma, Ersilia Alexa, Isidora Radulov, Ileana Cocan, Emilian Madosa, Adriana Ciulca
Summary: This study evaluated the total polyphenol content and antioxidant activity of fruits in six wild bilberry populations from Romania over three years. Results showed significant differences in polyphenol content and antioxidant activity between populations from different regions and across years, indicating the impact of environmental conditions on the accumulation of polyphenols in bilberry fruits.
Article
Biochemistry & Molecular Biology
Emanuela Marchese, Valentina Orlandi, Federica Turrini, Isabella Romeo, Raffaella Boggia, Stefano Alcaro, Giosue Costa
Summary: Quantum chemical calculations using density functional theory were used to predict the antioxidant potential of urolithins, bioactive gut microbiota metabolites of ellagitannins and ellagic acid. Different reaction mechanisms were considered in water and lipid-like environments to evaluate their ability to counter oxidative stress. The results showed that most urolithins exhibited higher scavenging activity against reactive oxygen species compared to other potent antioxidants, which was confirmed by experimental assays.
Article
Chemistry, Applied
Omer Isildak, Ilyas Yildiz, Nusret Genc
Summary: In this study, a new type of solid-state-contact potentiometric PVC membrane sensor was developed for the evaluation of 1,1-diphenyl-1-picrylhydrazil (DPPH) radical scavenging activity. The sensor demonstrated simple, fast, stable, and low-cost characteristics, and could measure at low volumes. The results obtained were in accordance with the spectroscopic method.
Article
Horticulture
Soya Nakagawa, Ryo Ohmura, Saki Toshima, Hyungjun Park, Yosuke Narasako, Tomonari Hirano, Motoyasu Otani, Hisato Kunitake
Summary: Anthocyanins and polyphenols in sweetpotato have multiple physiological functions attracting attention for breeders. This study investigates the diversity of these compounds and their antioxidant activities in various sweetpotato genotypes. The changes in acylated anthocyanin content and antioxidant activities during tuber growth may help improve sweetpotato cultivation and breeding.
SCIENTIA HORTICULTURAE
(2021)
Article
Biochemistry & Molecular Biology
Fang Li, Ting-Ting Yan, Ying-Ying Fu, Nen-Ling Zhang, Lei Wang, Yan-Bing Zhang, Juan Du, Ji-Feng Liu
Summary: Chemical investigation of the ethanol extract of the branch and leaves of Illicium majus led to the isolation of four new phenylpropanoid glycosides and one new phenolic glycoside, along with 13 known compounds. Spectroscopic techniques were used to elucidate the structures of the new isolates, showing moderate radical scavenging activities for the most active compounds. Antibacterial activities of the isolates against Staphylococcus aureus and Escherichia coli were also assessed, with no activity shown at the tested concentration.
CHEMISTRY & BIODIVERSITY
(2021)
Article
Environmental Sciences
Muhammad Waseem, Awais Ahmad, Muhammad Sagir, Umer Younas, Zohaib Saeed, Muhammad Pervaiz, Faisal Ali, Ahmed Muteb Aljuwayid, Mohamed A. Habila, Rama Rao Karri
Summary: A novel nanocomposite V2O5/TiO2/g-C3N4 was synthesized by a simple hydrothermal method, which exhibited excellent scavenging of free radicals and photocatalytic ability for dye degradation, indicating its potential for environmental remediation.
ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Jacqueline Bangma, T. C. Guillette, Paige A. Bommarito, Carla Ng, Jessica L. Reiner, Andrew B. Lindstrom, Mark J. Strynar
Summary: The accumulation and elimination of per- and polyfluoroalkyl substances (PFAS) in wildlife and humans are largely due to interactions with proteins such as organic anion transporters, fatty acid binding proteins, and serum proteins like albumin. Changes in the environment and physiological factors can impact the distribution of PFAS-related proteins and subsequently affect PFAS levels. Understanding these relationships between biotic and abiotic environments, protein levels, and PFAS concentrations can improve study design and interpretation in wildlife research.
ENVIRONMENT INTERNATIONAL
(2022)
Article
Spectroscopy
Yajie Zhang, Changjiao Shang, Chaofan Sun, Lingling Wang
Summary: This study investigates the absorption capacities and antioxidant activities of four stilbene derivatives using computational chemistry and DPPH radical scavenging experiment. The results show that these compounds can effectively absorb UV rays and protect against UVB radiation, while also exhibiting strong antioxidant activities. EHDB and HPTP perform the best and are suitable for sunscreen formulation.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Nutrition & Dietetics
Yingchun Jin, Jie Tu, Xinyao Han, Jun Zhuo, Guanhui Liu, Yanhui Han, Hengjun Du, Jun Wang, Hang Xiao
Summary: The functional properties of mulberry leaves were improved by enriching them with gamma-aminobutyric acid (GABA). The application of sodium glutamate immersion, cold shock, and anoxic treatment significantly increased the GABA content and the quantity of active phenolics. The particle size of the GABA-enriched mulberry leaf powders affected their physical properties, release of active compounds, and antioxidant and inhibition abilities. The addition of powders effectively delayed the staling of bread without altering its taste.
FRONTIERS IN NUTRITION
(2022)
Article
Agriculture, Multidisciplinary
Xia Guo, Xuan Zang, Shi-Juan Dou, Dong-Yun Wang, Xiu-Ling Wang
Summary: A study found that a Gram-positive facultative anaerobic bacterium named Lactobacillus acidipiscis HAU-FR7 isolated from traditional Chinese fermented soy product 'stinky tofu' can efficiently convert daidzin and genistin in soymilk to dihydrodaidzein and dihydrogenistein. In addition, the fermented soymilk with HAU-FR7 exhibited higher free radical scavenging capacity.
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
(2022)
Article
Multidisciplinary Sciences
Nirat Katuwal, Bibek Raya, Roshan Dangol, Basanta Raj Adhikari, Yadav Kc, Atul Upadhyay
Summary: This study investigated the effects of different fermentation times on the phenolic content and radical scavenging activity of Kinema, and determined the optimal fermentation time using one-factor response surface methodology. The numerical optimization suggested an optimal fermentation time of 29.6 hours, which resulted in significantly higher total phenolics and flavonoid contents and lower DPPH radical scavenging activity compared to traditionally fermented Kinema. Moreover, the optimized Kinema had significantly higher overall sensory scores. These results indicate that fermentation time affects the amount of bioactive constituents in Kinema.
Article
Chemistry, Physical
Hong Zhang, Jing Wang, Qing-Mei Feng, Qing-Xia Li, Fang Wang, Pei Wang, Hong-Bin Li, Ling-Xia Zhang, Jun Chi, Li-Ping Dai
Summary: Four new 5-hydroxymethylfurfural derivatives, named cornusfurans A-D (1-4), were obtained from wine-processed Corni fructus, along with three known ones (5-7). These compounds were unique components in Cornus officinalis processed with wine, and compounds 1-4 were constructed by a 5-hydroxymethylfurfural or 5-hydroxymethylfuroic acid and a small organic acid. The structures were determined through spectroscopic analysis, and the absolute configurations of compounds 1-2 and 4 were confirmed by comparing experimental and calculated electronic circular dichroism (ECD) data. Bioassay results showed that compounds 1-2 exhibited DPPH radical scavenging activity and protective effects against H2O2-induced oxidative stress damage.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Biochemistry & Molecular Biology
Chang-Kwon Kim, Jeongjun Ahn, Jayeon Yu, DucDat Le, Sanghee Han, Mina Lee
Summary: Ilex rotunda, a plant used in traditional medicine, was investigated for its antioxidant activity. The twig extract showed the highest antioxidant capacity, and the n-butanol fraction exhibited the most significant antioxidant effect. Eight marker compounds were isolated and their structures were determined. Compound 7, 4,5-dicaffeoylquinic acid, demonstrated potent antioxidant activity and penetration across the blood-brain barrier, suggesting its potential as a therapeutic candidate for central nervous system diseases.
Article
Chemistry, Physical
Rosa Vazquez-Garcia, Anaberta Cardador-Martinez, Miguel Angel Orihuela-Lopez, Livia Sofia Ramos-Hernandez, Sandra Teresita Martin-del-Campo
Summary: Studies on Mexican goat cheeses have shown that peptides with antioxidant activity are present during different ripening stages, potentially released by proteolysis caused by starter cultures during the cheese ripening process.
Article
Neurosciences
Katarina Bojovic, Biljana Stankovic, Nikola Kotur, Dijana Krstic-Milosevic, Vladimir Gasic, Sonja Pavlovic, Branka Zukic, Durdica Ignjatovic
NUTRITIONAL NEUROSCIENCE
(2019)
Article
Agricultural Engineering
Branka Vinterhalter, Jelena Savic, Snezana Zdravkovic-Korac, Nevena Banjac, Dragan Vinterhalter, Dijana Krstic-Milosevic
INDUSTRIAL CROPS AND PRODUCTS
(2019)
Article
Plant Sciences
Olga Radulovic, Slavisa Stankovic, Branka Uzelac, Vojin Tadic, Milana Trifunovic-Momcilov, Jelena Lozo, Marija Markovic
Article
Agricultural Engineering
Gordana Zdunic, Ana Alimpic Aradski, Dejan Godevac, Jelena Zivkovic, Sonja Duletic Lausevic, Dijana Krstic Milosevic, Katarina Savikin
INDUSTRIAL CROPS AND PRODUCTS
(2020)
Article
Plant Sciences
Dijana Krstic-Milosevic, Nevena Banjac, Teodora Jankovic, Klemen Eler, Branka Vinterhalter
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2020)
Article
Plant Sciences
Zorica Popovic, Dijana Krstic-Milosevic, Milena Markovic, Vera Vidakovic, Srdan Bojovic
Summary: Natural populations of Gentiana asclepiadea were analyzed using HPLC to determine the contents of six secondary metabolites, showing clear separation between populations based on differences in compound content and origin. This study contributes to understanding the variability of pharmacologically important compounds within and between populations of G. asclepiadea.
Review
Plant Sciences
Marija Markovic, Milana Trifunovic Momcilov, Branka Uzelac, Sladana Jevremovic, Angelina Subotic
Summary: Ornamental geophytes face challenges with slow development and ineffective propagation methods, leading to the development of micropropagation techniques to improve multiplication rate and shorten regeneration periods. Dormancy is a key limitation in vitro multiplication, as bulbs require overcoming dormancy for sprouting. Understanding dormancy processes can help accelerate breeding and achieve economic profitability in horticulture. This review specifically focuses on recent findings in bulb dormancy initiation and release in fritillaries, emphasizing the effects of plant growth regulators and low-temperature pretreatment on dormancy release and antioxidative enzyme activity induction in vitro.
Article
Plant Sciences
Dijana Krstic-Milosevic, Nevena Banjac, Teodora Jankovic, Dragan Vinterhalter, Branka Vinterhalter
Summary: In vitro shoot culture of the endangered medicinal plant Gentianella lutescens was established and different treatments were found to have an impact on shoot growth and xanthone production. Controlling the concentration of sucrose, sorbitol, and elicitors in the culture medium can significantly affect the accumulation of xanthones in shoot cultures.
Article
Plant Sciences
Branka Vinterhalter, Nevena Banjac, Dragan Vinterhalter, Dijana Krstic-Milosevic
Summary: The hairy root clones of Gentiana dinarica cultivated in TIS RITA(R) and BCB with 1/2 MS medium and 4% sucrose showed higher dry matter content and xanthones production compared to those in EF. Among the clones, clone cl-B displayed superior growth parameters in BCB and TIS RITA(R), with the highest production of nor-1-O-prim and norswertianin. The optimized conditions in highly aerated TIS RITA(R) and BCB systems contribute to the development of bioreactor technology for large scale commercial production of xanthones nor-1-O-prim and norswertianin.
Article
Plant Sciences
Dragana Stojicic, Svetlana Tosic, Gordana Stojanovic, Bojan Zlatkovic, Snezana Jovanovic, Snezana Budimir, Branka Uzelac
Summary: This study investigated the VOC emissions of Clinopodium pulegium, an endangered species endemic to the Southern Carpathians. It was found that the presence and concentration of carbon sources influenced the VOC emissions and characteristics of leaf glandular trichomes, while the qualitative composition of the volatiles was only slightly affected.
Article
Horticulture
Marija Markovic, Milana Trifunovic-Momcilov, Olga Radulovic, Danijela M. Paunovic, Dragana D. Antonic Reljin, Branka Uzelac, Angelina Subotic
Summary: This study investigated the effects of various auxin-cytokinin combinations on different morphogenetic pathways in bulb scale culture of Fritillaria meleagris. Low concentrations of plant growth regulators were found to be effective for shoot multiplication, with up to 5.5 shoots per explant. The combination of 2,4-D and low BAP concentration produced the highest number of bulbs, while PGR-free medium was effective in somatic embryo formation.
Article
Multidisciplinary Sciences
Maja Belic, Snezana Zdravkovic-Korac, Branka Uzelac, Dusica Calic, Suzana Pavlovic, Jelena Milojevic
SCIENTIFIC REPORTS
(2020)
Article
Plant Sciences
Marija Markovic, Milana Trifunovic Momcilov, Branka Uzelac, Aleksandar Cingel, Snezana Milosevic, Sladana Jevremovic, Angelina Subotic
Article
Plant Sciences
Marija Markovic, Milana Trifunovic Momcilov, Branka Uzelac, Olga Radulovic, Snezana Milosevic, Sladana Jevremovic, Angelina Subotic
Article
Forestry
Mariana Stanisic, Tatjana Cosic, Jelena Savic, Dijana Krstic-Milosevic, Danijela Misic, Ann Smigocki, Slavica Ninkovic, Nevena Banjac
