Results 31 to 40 of about 51,290 (223)

The intra-cellular localization of the vanillin biosynthetic machinery in pods of Vanilla planifolia [PDF]

, 2017
Vanillin is the most important flavor compound in the vanilla pod. Vanilla planifolia vanillin synthase (VpVAN) catalyzes the conversion of ferulic acid and ferulic acid glucoside into vanillin and vanillin glucoside, respectively.
Dalsten, Lene, Dunski, Eryk, Gallage, Nethaji J., Grisoni, Michel, Janfelt, Christian, Jorgensen, Kirsten, Moller, Birger Lindberg, Naake, Thomas, Nielsen, Agnieszka J.Z.   +8 more
core   +2 more sources

A three-enzyme-system to degrade curcumin to natural vanillin [PDF]

, 2015
The symmetrical structure of curcumin includes two 4-hydroxy-3-methoxyphenyl substructures. Laccase catalyzed formation of a phenol radical, radical migration and oxygen insertion at the benzylic positions can result in the formation of vanillin.
Berger, Ralf Günter, Esparan, Vida, Krings, Ulrich, Struch, Marlene   +3 more
core   +6 more sources

Oxygen radical based on non-thermal atmospheric pressure plasma alleviates lignin-derived phenolic toxicity in yeast

Biotechnology for Biofuels, 2020
Background Vanillin is the main byproduct of alkaline-pretreated lignocellulosic biomass during the process of fermentable-sugar production and a potent inhibitor of ethanol production by yeast.
Shou Ito, Kiyota Sakai, Vladislav Gamaleev, Masafumi Ito, Masaru Hori, Masashi Kato, Motoyuki Shimizu   +6 more
doaj   +1 more source

Insights into the Dynamic Succession of Microbial Community and Related Factors of Vanillin Content Change Based by High-Throughput Sequencing and Daqu Quality Drivers

Foods, 2023
Daqu is an important saccharifying starter in the fermentation of Nongxiangxing Baijiu in China. Vanillin is a health and flavor factor in Baijiu. However, only a few research studies on the vanillin content of Daqu are currently not systematic. In order
Wenhua Tong, Shuqin Wang, Ying Yang, Zhijiu Huang, Yiyun Li, Dan Huang, Huibo Luo, Liming Zhao   +7 more
doaj   +1 more source

High concentrations of flavor chemicals are present in electronic cigarette refill fluids. [PDF]

, 2019
We characterized the flavor chemicals in a broad sample of commercially available electronic cigarette (EC) refill fluids that were purchased in four different countries.
Luo, Wentai, McWhirter, Kevin J, Omaiye, Esther E, Pankow, James F, Talbot, Prue, Tierney, Peyton A   +5 more
core   +2 more sources

Do topical repellents divert mosquitoes within a community? Health equity implications of topical repellents as a mosquito bite prevention tool. [PDF]

, 2013
OBJECTIVES: Repellents do not kill mosquitoes--they simply reduce human-vector contact. Thus it is possible that individuals who do not use repellents but dwell close to repellent users experience more bites than otherwise.
DC Chavasse, Elizabeth Louise Turner, Emmanuel Titus Simfukwe, GF Killeen, JA Scott, John Vontas, LW Cohnstaedt, M Ditzen, M Rowland, Marta Ferreira Maia, Max Thele, MF Maia, N Hill, RW Steketee, Sangoro Peter Onyango, Sarah Jane Moore, SE Clarke, SJ Moore, SJ Moore, SP Carroll, SW Lindsay, TW Scott, Y Geissbühler   +22 more
core   +3 more sources

Application of Hansch’s Model to Capsaicinoids and Capsinoids: A Study Using the Quantitative Structure−Activity Relationship. A Novel Method for the Synthesis of Capsinoids [PDF]

, 2010
We describe a synthetic approach for two families of compounds, the capsaicinoids and capsinoids, as part of a study of the quantitative relationship between structure and ...
Appendino G., Barbero G. F., Barbero G. F., Bennett D. J., Careaga M., Chou J., Constant H. L., Gannett P. M., Hancock C. R., Henderson D. E., Iwai K., Kaga H., Kagan I. A., Kim C. S., Kobata K., Kobata K., Lipinski C. A., Macho A., Macias F. A., Mannhold R., Morris G. C., Nitsch J. P., Ohnuki K., Ohnuki K., Perucka I., Rekker R. F., Rosa A., Sancho R., Surh Y. J., Sutoh K., Torregiani E., Unnikrishnan M. C., Zewdie Y.   +32 more
core   +3 more sources

Extraction of wood compounds by use of subcritical fluids [PDF]

, 2003
A study of the extraction of oak wood compounds with subcritical water-ethanol mixtures as extractant, with an ethanol content between 0-60%, is reported.
Gonzalez-Rodriguez, Jose, Luque de Castro, Maria Dolores, Perez Juan, Pedro   +2 more
core   +1 more source

Chemiluminometric determination of vanillin in commercial vanillin products

Talanta, 2007
Vanillin, ethylvanillin and 4-hydroxy-3-methoxy-benzylalcohol have been found to chemiluminesce by the action of potassium permanganate in sulphuric or polyphosphoric acid media. Both acid media have been compared and sulphuric acid allows the sensitive determination of 0.15-10.0, 0.010-1.0 and 0.0030-0.30microg mL(-1) of vanillin, ethylvanillin and 4 ...
Meropi Timotheou-Potamia, Antony C. Calokerinos   +1 more
openaire   +3 more sources

Natural Vanillin Production from Isoeugenol by Using Pseudomonas putida in Biphasic Bioconversion Medium

Journal of Agricultural Sciences, 2022
Vanillin, is one of the most demanded flavoring agents in the world. Because of insufficient supply of natural vanillin, market demand is usually supplied by synthetic ones.
Hüseyin Karakaya, Murat Yılmaztekin
doaj   +1 more source