Results 81 to 90 of about 366,718 (318)
Advances in phenolic compounds analysis of aromatic herbs and their potential applications.
, 2014 Introduction: Herbs can be considered important sources of antioxidants and have a long history of medicinal and culinary applications. The use of plants as sources of antioxidants for nutritional and preservation purposes in the food industry is ...
Machado, A.V. +7 more
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Atividade antioxidante e crioconcentração dos compostos bioativos do extrato aquoso de erva-mate (Ilex paraguariensis A. St. Hil.) [PDF]
, 2015 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Agrárias, Programa de Pós-Graduação em Ciência dos Alimentos, Florianópolis, 2015.A atividade antioxidante do extrato aquoso de erva-mate está relacionada principalmente ...
Boaventura, Brunna Cristina Bremer
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, 2022 In our research work, we developed a CE-MS method for the determination of different phenolic compounds present in a honey sample. Initial experiments were carried out to determine the appropriate MS method, and the use of a negative ionization mode ...
Rivadeneira, Eve Sofia
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Advanced Engineering Materials, EarlyView.Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies +2 more
wiley +1 more source
Real time NMR analyses of phenolic resin reactions
, 2008 The current investigation presents the development and application of a Rapid NMR acquisition method, capable of identifying transient species and quantitatively monitoring their changes in real time during an in situ phenolic resin preparation.
Woolley, Samuel Lindsay
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Status of DIMBOA and phenolic acids in transgenic Bt corn
, 2005 Experiments were conducted to investigate the status of DIMBOA (2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one) and phenolic acids in leaves of some transgenic Bt corn hybrids.
Zeng, R. S. +5 more
core +1 more source
Phenolic Contents and Antioxidant Activity of Extracts of Selected Fresh and Dried Herbal Materials
, 2021 Total phenolic content (TPC) and phenolic profiles of extracts of the aerial parts of coriander ( Coriandrum sativum L.), lovage ( Levisticum officinale Koch.), and tarragon ( Artemisia dracunculus L.), and leaves of Indian borage ( Plectranthus ...
Ewa Majewska +11 more
core +1 more source
Advanced Engineering Materials, EarlyView.This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele +2 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco +8 more
wiley +1 more source
Reactions of Phenolic Mannich Bases with Phenols
The Journal of the Society of Chemical Industry, Japan, 1958 1)フェノールマンニッヒ塩基とフェノール類との反応は,フェノール性OH基の酸性度が大きいほど分解反応大でまたフェノール類添加により促進されるが,アニソールのようにOH基を有しないと促進しない。2)ニトロフェノール,アニリン等の添加により分解反応が促進される。また,これがオルトマンニッヒ塩基と,パラ,マンニッヒ塩基とにより大きく差を生じ,オルトマンニッヒ塩基において効果大で,パラマンニッヒ塩基であまり効果を認めなかった。3)オルトマンニッヒ塩基で,2,4-二置換フェノールを用いたものと相手フェノールを2,4-ジメチルフェノールとの,反応で, 発生ジメチルアミンの追跡により, 初期反応を2 次反応速度として取扱うことができる。マンニッヒ塩基の置換基RがCH3では活性化熱13.6kcal/mol ...
Keiichi Azuma +3 more
openaire +2 more sources