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Christian Landmann et al.
Planta, 226(2), 417-428 (2007-02-27)
Fragaria x ananassa UDP-glucose:cinnamate glucosyltransferase (FaGT2) catalyzes the formation of cinnamic acid and p-coumaric acid glucose esters during strawberry fruit ripening. Here, the ripening and oxidative stress induced enzyme was further characterized by testing a range of structurally different substrates
T-T Liu et al.
Journal of food science, 73(4), C256-C261 (2008-05-08)
The effect of photosensitized oxidation of conjugated linoleic acid in an oil-in-water (o/w) emulsion system was studied. Water-soluble natural antioxidants, including apple polyphenols from apple extract, green tea extract, 4-hydroxy-2(or 5)-ethyl-5(or2)-methyl-3(2H)-furanone(HEMF), 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF), and ascorbic acid, were tested for antioxidant
Silke Illmann et al.
Journal of agricultural and food chemistry, 57(7), 2889-2895 (2009-03-05)
The formation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF) was studied in aqueous model systems containing L-rhamnose and L-lysine. The approach consisted in systematically varying four reaction parameters (rhamnose concentration, rhamnose to lysine ratio, pH, and phosphate concentration) at 3 levels. A fractional factorial
Vicente Ferreira et al.
Journal of chromatography. A, 1010(1), 95-103 (2003-09-25)
A method for the analytical determination of sotolon [4,5-dimethyl-3-hydroxy-2(5H)-furanone], maltol [3-hydroxy-2-methyl-4H-pyran-4-one] and free furaneol [2,5-dimethyl-4-hydroxy-3(2H)-furanone] in wine has been developed. The analytes are extracted from 50 ml of wine in a solid-phase extraction cartridge filled with 800 mg of LiChrolut
Thomas Raab et al.
The Plant cell, 18(4), 1023-1037 (2006-03-07)
The flavor of strawberry (Fragaria x ananassa) fruit is dominated by an uncommon group of aroma compounds with a 2,5-dimethyl-3(H)-furanone structure. We report the characterization of an enzyme involved in the biosynthesis of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF; Furaneol), the key flavor compound
Nicole Christina Stadler et al.
Journal of agricultural and food chemistry, 57(9), 3949-3954 (2009-04-03)
A number of 3(2H)-furanones are synthesized by fruits and have been found in cooked foodstuffs, where they impart flavor and odor because of their low perception thresholds. They show genotoxic properties in model studies but are also ranked among the
Fernando de la Peña Moreno et al.
Journal of chromatography. A, 1217(7), 1083-1088 (2009-11-03)
A method based on the use of the through oven transfer adsorption-desorption (TOTAD) interface in on-line coupling between reversed phase liquid chromatography and gas chromatography (RPLC-GC) for the determination of chiral volatile compounds was developed. In particular, the method was
Alessandro Genovese et al.
Annali di chimica, 95(6), 415-419 (2005-09-03)
Gas Chromatography-Mass Spectrometry (GC-MS) analysis by Selective Ion Monitoring (SIM) was applied to quantify 4-Hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF) in both red and white wines obtained from some Italian cultivar of Vitis vinifera. Wines were extracted by liquid-liquid extraction performed with 1,1,2-trichlorotrifluoroethane (Freon
Xiaofen Du et al.
Journal of chromatography. A, 1208(1-2), 197-201 (2008-09-09)
A GC-MS method for the determination of furaneol in fruit juice was developed using Lichrolut-EN solid-phase extraction (SPE) coupled to microvial insert thermal desorption. Lichrolut-EN can effectively extract furaneol from juice, and had much less retention for pigments and other
Markus Verginer et al.
FEMS microbiology ecology, 74(1), 136-145 (2010-07-29)
Besides its influence on plant growth and health, plant-associated bacteria exert an impact on fruit quality. Methylotrophic bacteria can enhance the biosynthesis of strawberry flavor compounds, especially the two furanoid compounds 2,5-dimethyl-4-hydroxy-2H-furanone (DMHF) and 2,5-dimethyl-4-methoxy-2H-furanone in vitro. Here, we report
Estimation of 2, 5?dimethyl?4?hydroxy?3 (2H)?furanone (FURANEOLA?) in cultivated and wild strawberries, pineapples and mangoes
Pickenhagen W, et al.
Journal of the Science of Food and Agriculture, 32(11), 1132-1134 (1981)
Woo Sang Sung et al.
Life sciences, 80(6), 586-591 (2006-11-14)
2,5-Dimethyl-4-hydroxy-3(2H)-furanone (DMHF), an aroma compound found in a number of fruits and foods, has shown various biological properties in animal models, but its antimicrobial effect remains poorly understood. The current study investigated the antimicrobial effect of DMHF using human pathogenic
André Schiefner et al.
The Journal of biological chemistry, 288(23), 16815-16826 (2013-04-17)
The last step in the biosynthetic route to the key strawberry flavor compound 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF) is catalyzed by Fragaria x ananassa enone oxidoreductase (FaEO), earlier putatively assigned as quinone oxidoreductase (FaQR). The ripening-induced enzyme catalyzes the reduction of the exocyclic
Goreti Botelho et al.
Analytica chimica acta, 657(2), 198-203 (2009-12-17)
To evaluate the potential aroma of Aragonez clonal red musts, several free and glycosidically bound odourant compounds were extracted. Then, the gas chromatography-olfactometry (GC-O) posterior intensity method was used to evaluate their odour intensity and the compounds were identified by
Stefan Lunkenbein et al.
Journal of experimental botany, 57(10), 2445-2453 (2006-06-27)
A complex mixture of hundreds of substances determines strawberry (Fragaria x ananassa) aroma, but only approximately 15 volatiles are considered as key flavour compounds. Of these, 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF) is regarded as the most important, but it is methylated further by
Tobias Hauck et al.
Journal of agricultural and food chemistry, 51(16), 4753-4756 (2004-01-07)
The formation of 4-hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF) by Zygosaccharomyces rouxii was studied in yeast-peptone-dextrose medium containing d-fructose 1,6-diphosphate under various culture conditions. Cell growth and HDMF production was heavily dependent on medium pH and sodium chloride concentration. Higher pH values of the
M C Rodríguez Dodero et al.
Journal of agricultural and food chemistry, 58(2), 990-997 (2009-12-22)
This article shows the results obtained in the study of the extraction profiles from oak wood to distillate of several compounds, low molecular weight phenolics, and furanic derivatives, and the relationship of their contents with those found in commercial sherry
Yukiko Tokitomo et al.
Bioscience, biotechnology, and biochemistry, 69(7), 1323-1330 (2005-07-26)
By application of aroma extract dilution analysis (AEDA) to an aroma distillate prepared from fresh pineapple using solvent-assisted flavor evaporation (SAFE), 29 odor-active compounds were detected in the flavor dilution (FD) factor range of 2 to 4,096. Quantitative measurements performed
S Barkat et al.
Chemical senses, 37(2), 159-166 (2011-08-30)
Our olfactory system is confronted with complex mixtures of odorants, often recognized as single entities due to odor blending (e.g., coffee). In contrast, we are also able to discriminate odors from complex mixtures (e.g., off-odors). Therefore, the olfactory system is
Nonjabulo P Gule et al.
Water research, 47(3), 1049-1059 (2012-12-25)
The 3(2H) furanone derivative 2,5-dimethyl-4-hydroxy-3(2H)-furanone (DMHF) was investigated for its antimicrobial and cell-adhesion inhibition properties against Klebsiella pneumoniae Xen 39, Staphylococcus aureus Xen 36, Escherichia coli Xen 14, Pseudomonas aeruginosa Xen 5 and Salmonella typhimurium Xen 26. Nanofibers electrospun from
Yu Wang et al.
Journal of agricultural and food chemistry, 56(16), 7405-7409 (2008-07-03)
The caramel-like aroma compound, 2,5-dimethyl-4-hydroxy-3(2H)-furanone (DMHF) was quantified and verified by HPLC and GC-MS in the Maillard reaction based on methylglyoxal (MG). The reaction was performed in the 0.5 M phosphate buffer by heating MG with or without either glycine
K Murakami et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 45(7), 1258-1262 (2007-02-24)
Prooxidant properties of furanone compounds including 2,5-furanone (furaneol, 4-hydroxy-2,5-dimethyl-furan-3-one), 4,5-furanone (4,5-dimethyl-3-hydroxy-2(5H)-furanone) (sotolone) and cyclotene (2-hydroxy-3-methyl-2-cyclopenten-1-one) were analyzed in relation to the metal-reducing activity. Only 2.5-furanone known as a "strawberry or pineapple furanone" inactivated aconitase the most sensitive enzyme to active
A rational synthesis of 4-hydroxy-2, 5-dimethyl-3 (2H)-furanone, a flavor component of pineapple
Henry DW & Silverstein RM.
The Journal of Organic Chemistry, 31(7), 2391-2394 (1966)
Adriana Bravo et al.
Journal of agricultural and food chemistry, 56(11), 4134-4144 (2008-05-09)
With the aim of determining the formation of alpha-dicarbonyl intermediates during beer aging on the shelf, alpha-dicarbonyls were identified and quantified after derivatization with 1,2-diaminobenze to generate quinoxalines. The sensory effects of alpha-dicarbonyls were evaluated by the quantification of key
Petra Steinhaus et al.
Journal of agricultural and food chemistry, 55(15), 6262-6269 (2007-07-03)
Application of aroma extract dilution analysis (AEDA) to the volatiles isolated from a commercial Japanese soy sauce revealed 30 odor-active compounds in the flavor dilution (FD) factor range of 8-4096, among which 2-phenylethanol showed the highest FD factor of 4096
Odorants in breast milk.
Peter M Bingham et al.
Archives of pediatrics & adolescent medicine, 157(10), 1031-1031 (2003-10-15)
Wilfried Schwab
Molecules (Basel, Switzerland), 18(6), 6936-6951 (2013-06-15)
4-Hydroxy-2,5-dimethyl-3(2H)-furanone (HDMF, furaneol®) and its methyl ether 2,5-dimethyl-4-methoxy-3(2H)-furanone (DMMF) are import aroma chemicals and are considered key flavor compounds in many fruit. Due to their attractive sensory properties they are highly appreciated by the food industry. In fruits 2,5-dimethyl-3(2H)-furanones are
J Lee et al.
The British journal of dermatology, 157(2), 242-248 (2007-07-26)
Increased production and accumulation of melanin is characteristic of a large number of skin diseases, including acquired hyperpigmentation such as melasma, postinflammatory melanoderma and solar lentigo. Thus, there is a increasing need for the development of depigmenting agents. To evaluate
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