Results 51 to 60 of about 7,053,254 (292)

Determination of Total Polyphenol Content in Food with the Flow-Injection Method [PDF]

Archives of Industrial Hygiene and Toxicology, 2008
Odredivanje polifenola u namirnicama metodom ubrizgavanja u protokU ovom radu predložena je modificirana automatizirana metoda ubrizgavanja u protok za odredivanje sadržaja ukupnih polifenola u namirnicama bazirana na Folin-Ciocalteauovoj reakciji u 0,5 mol L-1NaOH.
Suzana, Berend, Zorana, Grabarić
openaire   +2 more sources

Biomass DNA: An Emerging Building Block for Advanced Materials

Advanced Materials, EarlyView.
Biomass DNA is rapidly emerging from its traditional role as a genetic blueprint to serve as a versatile abundant, highly programmable polymeric building block. This review highlights the transformation of macroscopic bulk biomass DNA into next generation of functional materials, spanning from dynamic hydrogels, sustainable bioplastics, and high ...
Yuwei Hu, Itamar Willner, Li Niu
wiley   +1 more source

Near‐Infrared Imaging of H2O2 in Plants With Nanosensors Under Environmentally Changing Conditions

Advanced Materials, EarlyView.
This paper reports a ratiometric nanosensor enabling robust, multivariate detection of stress signals (H2O2) in plants, with high resistance to light fluctuations and mechanical disturbances. Single‐walled carbon nanotubes serve as the sensor, Egyptian Blue nanosheets serve as a stable reference, and plant autofluorescence serves as a label‐free ...
Jiaqi Li, Bjoern F. Hill, Chen Ma, Juliana Gretz, Tanuja Kistwal, Janus A. C. Wartmann, Justus T. Metternich, Juan Pablo Giraldo, Sebastian Kruss   +8 more
wiley   +1 more source

Determination of flavonoids and total polyphenol contents in commercial apple juices [PDF]

Czech Journal of Food Sciences, 2018
We propose a sensitive and selective spectrofluorimetric method for the determination of flavonoids as expressed in 'quercetin equivalent' in apple juices. The method is based on the strong emission of the aluminium(III)-quercetin complex at 480 nm with excitation at 420 nm, and it is successfully applied for the determination of flavonoids in ...
Pavun, Leposava, Uskoković-Marković, Snežana, Jelikić-Stankov, Milena, Đikanović, Daniela, Đurđević, Predrag   +4 more
openaire   +5 more sources

Comparative analysis of total flavonoids, total polyphenols and antioxidant properties in different varieties of Hulless barley

, 2020
The total flavonoid content, total polyphenols content and their antioxidant activities in eleven variety of hulless barley were determined and analyzed.
Zhuo-ya, XIANG, Ke, LI, Xu-zhu, ZHAO, Chen, XIA, Jun-lin, DENG, Ting-hui, LIU, Kai-jun, YANG, Yong-qing, ZHU, Jian, CHEN, Chang-bin, LIN   +9 more
core   +1 more source

Culinary Chemistry as a Platform for Interfacial Materials Design

Advanced Materials Interfaces, EarlyView.
Culinary processes control interfaces through heating, shear, gelation, and molecular transport. This Review connects selected gastronomic examples with food‐derived nanomaterials, plasmonic sensing, anthocyanin photovoltaics, and intelligent packaging. Original agar‐based plasmonic films illustrate the proposed translation.
Josep Moreno, I. Brian Becerril‐Castro, Irene Calderon‐Gonzalez, Jaslyn Ru Ting Chen, Zhiming Wang, Alexander O. Govorov, José Manuel Romo‐Herrera, Neus Feliu, Wolfgang J. Parak, Miguel A. Correa‐Duarte, In Yee Phang, Xing Yi Ling, Ramón A. Alvarez‐Puebla   +12 more
wiley   +1 more source

Antioxidant capacity, polyphenol content and contribution to dietary intake of 52 fruits sold in Spain

CyTA - Journal of Food, 2018
Total antioxidant capacity (TAC) and total polyphenol content (TPC) of 52 fruits sold in Spain were evaluated by FRAP, ABTS, DPPH and Folin-Ciocalteu.
Arancha Ruiz-Torralba, Eduardo Jesús Guerra-Hernández, Belen García-Villanova   +2 more
doaj   +1 more source

Antioxidant Activity of Grapevine Leaf Extracts against Oxidative Stress Induced by Carbon Tetrachloride in Cerebral Cortex, Hippocampus and Cerebellum of Rats

Antioxidants, 2014
In recent years, it has become increasingly important to study the beneficial properties of derivatives of grapes and grapevine. The objective of this study was to determine the antioxidant activity of Vitis labrusca leaf extracts, comparing conventional
Mariane Wohlenberg, Daniela Almeida, Liane Bokowski, Niara Medeiros, Fabiana Agostini, Cláudia Funchal, Caroline Dani   +6 more
doaj   +1 more source

Total Polyphenol contents of An Giang medicinal plants

Science and Technology Development Journal, 2014
Total polyphenol content of 90 medicinal plants from Seven-Mountain area, Tinh Bien district, An Giang province was determined by photometric method with Folin-Ciocalteau reagent. The results showed that 7 samples have more than 200 mg GAE g-1, 22 samples from 100 to 200 mg GAE g-1, 35 sample from 50 to 100 mg GAE g-1, and 26 samples lower 50 mg GAE g ...
Mai Thi Thanh Nguyen, Nhan Trung Nguyen, Hai Xuan Nguyen, Mai Khoa Ha Nguyen   +3 more
openaire   +2 more sources

Linking Polyelectrolyte Modification and Enzyme‐Catalyzed Phenolic Acid Functionalization of Cellulose Fiber for Functional Foams

Advanced Materials Technologies, EarlyView.
Cellulose fibers functionalized using cationic poly(Dimethyldiallylammonium chloride) (polyDADMAC) and laccase‐mediated ferulic acid system are processed into foams using different surfactants (Anionic, cationic, and non‐ionic). Fiber–surfactant interactions influence foam stabilization and porous structure formation during convective drying, producing
Abirami Senthil, Sara Wallstén, Paul Christakopoulos, Ulrika Rova, Io Antonopoulou   +4 more
wiley   +1 more source