Results 121 to 130 of about 15,377,514 (211)

Synthesis and characterization of dioxouranium (VI) complexes of schiff bases derived from isatin, isovanillin and o-vanillin [PDF]

, 1996
66-68Three schiff bases viz. isatin semicarbazone, isovanillin thiosemicarbazone, o-vanillin para-anisidineand their dioxouranium(VI) complexes have been synthesised and characterized by elemental analysis, IR and NMR spectral ...
Naganagowda, G A, Singh, Kavita, Agarwala, Badri V   +2 more
core  

Determination of vanillin and ethyl-vanillin in milk powder by gas chromatography-mass spectrometry

, 2016
A method for determination of vanillin and ethyl-vanillin in milk powder was established by auto headspace solid-phase micro-extraction coupled with gas chromatography-mass spectrometry (GC—MS), and the influence factor were also studied, such as solid ...
Xiaoqun, WEI, Qingyuan, GUO, Xuan, ZHENG, Jin, HUANG, Yanfen, CHEN, Chun, CAI, Ju, LI, Jie, LIN, Jieli, FENG   +8 more
core   +1 more source

A Novel Voltammetric Approach for the Rapid Quantification of Rosmarinic Acid in Origanum micranthum and Origanum minutiflorum

Chemistry &Biodiversity, Volume 23, Issue 11, November 2026.
A sensitive voltammetric method using a boron‐doped diamond (BDD) electrode enables the quantification of rosmarinic acid (RA) in Origanum extracts. UV–Vis spectroscopy reveals higher RA content in ethyl acetate subextracts, while the combined spectroscopic and electrochemical approach provides an efficient strategy for RA analysis in the investigated ...
Elif Mollahasanoğlu, Gökçe Öztürk, Tuğba Subaş, Ufuk Özgen, Merve Badem, Şeyda Kanbolat, Dilek Kul, Fatma Ağın, Esen Sezen Karaoğlan, Sıla Özlem Şener, Sevda Türk, İnci Selin Doğan   +11 more
wiley   +1 more source

Semi-Sintesis Vanili dari Guaiakol Via Reaksi Reimer-Tiemann yang dikatalisis dengan Katalis Transfer Fase/Ptc: [18]-Crown Ether-6

Makara Seri Sains, 2002
Reimer-Tiemann reaction belongs to the group of the electrophylic substitution reaction (SE), and principally, this reaction consists of three steps reactions, namely: 1. formation of dichlorocarbene from chloroform by action of base (i.e.
Emil Budianto, Inneke Jayadi, Wahyudi Priyono Suwarso   +2 more
doaj  

Bioconversion of ferulic acid and vanillylmandelic acid to 4-vinyl guaiacol and vanillin mediated by Oenococcus oeni: towards sustainable flavor production

Frontiers in Industrial Microbiology
IntroductionConventional extraction of vanilla pods is both insufficient and costly, while chemical synthesis fails to satisfy natural labeling requirements.
Emmanouela Dermitzaki, Emmanouela Dermitzaki, Nikolaos Gkanatsios, Nikolaos Gkanatsios, Aikaterini Tzamourani, Manolis Vamvakias, Chaido Bardouki, Ourania Grigoriadou Zormpa, Ourania Grigoriadou Zormpa, Vassilis G. Dourtoglou, Vassilis G. Dourtoglou, Maria Dimopoulou   +11 more
doaj   +1 more source

Surfactant/carbon nanofibers-modified electrode for the determination of vanillin [PDF]

, 2016
© 2015 Springer-Verlag Wien. Glassy carbon electrode (GCE) modified with carbon nanofibers (CNF) and surfactants has been tested for the determination of vanillin in Britton-Robinson buffer. Cationic cetylpyridium bromide (CPB), nonionic Triton X100, and
Kozlova E., Ziganshina E., Budnikov H., Ziyatdinova G.   +3 more
core  

Synthesis of Vanillin from Glucose

, 2016
Synthesis of Vanillin from ...
J. W. Frost (2685595), Kai Li (205203)
core   +1 more source

HPLC‐DAD‐ESI‐MS/MS Analysis and Evaluation of Antioxidant and Antidiabetic Activities of Vachellia tortilis subsp. raddiana (Savi) Kyal. & Boatwr. Extracts

Food Science &Nutrition, Volume 14, Issue 11, November 2026.
The study investigated the phytochemical composition of Vachellia tortilis subsp. raddiana leaf and gum extracts using HPLC‐DAD‐ESI‐MS/MS and evaluated their antioxidant and antidiabetic activities. The leaf extract showed a higher content of phenolic and flavonoid compounds and exhibited promising antioxidant and α‐amylase inhibitory activities ...
Douae Taha, Souad El Hajjaji, Yassine Mourabit, Waleed Al Abdulmonem, Mohammed Alorini, Abdelhakim Bouyahya, Naima Iba, Ilhame Bourais   +7 more
wiley   +1 more source

Green Extraction Coupled With Spray‐Drying Encapsulation Enhances Stability and In Vitro Bioaccessibility of Phoenix dactylifera Seed Bioactives

Food Science &Nutrition, Volume 14, Issue 11, November 2026.
Alginate–xanthan encapsulation of HPAE30 date seed extract improved the retention of phenolic compounds during storage and enhanced their in vitro intestinal bioaccessibility. ABSTRACT The valorization of date seed by‐products as sources of bioactive compounds represents a promising strategy for supporting sustainable and circular food systems.
Olfa Rebai, Faten Raboudi, Malek Ben Temessek, Rafik Gatri, Sami Fattouch   +4 more
wiley   +1 more source

Curcumin and o-Vanillin Exhibit Evidence of Senolytic Activity in Human IVD Cells In Vitro. [PDF]

J Clin Med, 2019
Cherif H, Bisson DG, Jarzem P, Weber M, Ouellet JA, Haglund L.   +5 more
europepmc   +1 more source