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Frauke Lüddeke et al.
Applied and environmental microbiology, 78(7), 2128-2136 (2012-01-31)
Castellaniella defragrans is a Betaproteobacterium capable of coupling the oxidation of monoterpenes with denitrification. Geraniol dehydrogenase (GeDH) activity was induced during growth with limonene in comparison to growth with acetate. The N-terminal sequence of the purified enzyme directed the cloning
Masrat Maswal et al.
Food chemistry, 138(4), 2356-2364 (2013-03-19)
Citral is a flavour component widely used in food and cosmetic industries, but is chemically unstable and degrades over time in aqueous solutions due to acid-catalysed and oxidative reactions leading to loss of desirable flavour. The present study reveals the
Indu Sasidharan et al.
Natural product research, 26(19), 1759-1764 (2011-10-12)
Volatile oils from two most popular cultivars from Sikkim namely, Bhaisa and Majulay, were isolated, characterised by analytical GC and GC-MS. Sixty constituents accounting for 94.9% and 92.6% of the Bhaisa and Majulay oils were identified. The major compounds of
Francesca Patrignani et al.
International journal of food microbiology, 160(3), 273-281 (2013-01-08)
High pressure homogenization (HPH) technique is able to significantly reduce spoilage microbiota in fruit juice. On the other hand, aroma compounds and essential oils can have a key role in the microbial stability of these products. For this reason, the
Ramasamy S Annadurai et al.
BMC genomics, 13, 663-663 (2012-11-28)
Phyto-remedies for diabetic control are popular among patients with Type II Diabetes mellitus (DM), in addition to other diabetic control measures. A number of plant species are known to possess diabetic control properties. Costus pictus D. Don is popularly known
Huaixiang Tian et al.
Food chemistry, 141(1), 131-138 (2013-06-19)
The conditions for headspace solid phase microextraction (HS-SPME) analysis of volatile off-flavour compounds in citral emulsion were determined. Type of SPME phase (65 μm PDMS/DVB, 100 μm PDMS and 75μm CAR/PDMS), adsorption temperature and salt concentration were significant factors affecting
Uracha Rungsardthong Ruktanonchai et al.
Bioscience, biotechnology, and biochemistry, 75(12), 2340-2345 (2011-12-08)
The complexation between two isomers of citral in lemongrass oil and varying types of cyclodextrins (CDs), α-CD, β-CD, and HP-β-CD, were studied by molecular modeling and physicochemical characterization. The results obtained revealed that the most favorable complex formation governing between
Kazumi Osada et al.
Chemical senses, 38(1), 57-65 (2012-10-17)
Previous studies indicate that the most common result of mixing two odors is the decreased olfactory perception of one or both components in the mixture. An excellent example of this phenomenon is provided by the masking of an unpleasant odor
Benjamin R Thiede et al.
Nature communications, 5, 3840-3840 (2014-05-23)
Precise frequency discrimination is a hallmark of auditory function in birds and mammals and is required for distinguishing similar sounding words, like 'bat,' 'cat' and 'hat.' In the cochlea, tuning and spectral separation result from longitudinal differences in basilar membrane
Beatriz Chueca et al.
International journal of food microbiology, 189, 126-131 (2014-08-26)
Oxygenated monoterpenes citral and carvacrol are common constituents of many essential oils (EOs) that have been extensively studied as antimicrobial agents but whose mechanisms of microbial inactivation have not been totally elucidated. A recent study described a mechanism of Escherichia
Valentina Galbiati et al.
The Journal of investigative dermatology, 134(11), 2719-2727 (2014-05-02)
Keratinocytes have a key role in all phases of allergic contact dermatitis. We have recently identified the possibility to use IL-18 production for the in vitro identification of contact allergens. The purpose of this study was to characterize the molecular
Ina Strate et al.
Development (Cambridge, England), 136(3), 461-472 (2009-01-15)
Retinoic acid (RA) is an important morphogen that regulates many biological processes, including the development of the central nervous system (CNS). Its synthesis from vitamin A (retinol) occurs in two steps, with the second reaction--catalyzed by retinal dehydrogenases (RALDHs)--long considered
Nallely E Sandoval-Montemayor et al.
Molecules (Basel, Switzerland), 17(9), 11173-11184 (2012-09-21)
The main aim of this study was to isolate and characterize the active compounds from the hexane extract of the fruit peels of Citrus aurantiifolia, which showed activity against one sensitive and three monoresistant (isoniazid, streptomycin or ethambutol) strains of
E Graña et al.
Journal of chemical ecology, 39(2), 271-282 (2013-02-08)
Citral is a linear monoterpene which is present, as a volatile component, in the essential oil of several different aromatic plants. Previous studies have demonstrated the ability of citral to alter the mitotic microtubules of plant cells, especially at low
Thitiya Mangprayool et al.
Fitoterapia, 89, 68-73 (2013-05-21)
The extract of ginger, the rhizomes of Zingiber officinale Roscoe (Zingiberaceae), has been reported to possess anti-hyperactivity and anti-inflammation on airway. The present study described brochodilatory activity of ginger oil and identified its active compound. Ginger oil was extracted by
Darinee Dangkong et al.
Pharmaceutical biology, 53(2), 262-268 (2014-09-23)
Doxorubicin is a chemotherapy agent used in non-Hodgkin's lymphoma but side effects limit its use. Citral is a mixture of neral and geranial found in essential oils of lemon grass. We evaluated the activity of citral, doxorubicin, and combination on
San Zeng et al.
Pharmaceutical research, 32(8), 2548-2558 (2015-02-13)
Citral is composed of a random mixture of two geometric stereoisomers geranial (trans-citral) and neral (cis-citral) yet few studies have directly compared their in vivo antitumor properties. A micelle formulation was therefore developed. Geranial and neral were synthesized. Commercially-purchased citral
Jian Yang et al.
Stem cells (Dayton, Ohio), 33(5), 1390-1404 (2014-12-30)
We previously demonstrated that coexpressing retinoic acid (RA) receptor gamma and liver receptor homolog-1 (LRH1 or NR5A2) with OCT4, MYC, KLF4, and SOX2 (4F) rapidly reprograms mouse embryonic fibroblast cells (MEFs) into induced pluripotent stem cells (iPSCs). Here, we further
Lawrence E Marks et al.
Physiology & behavior, 105(2), 443-450 (2011-09-21)
Stimulus context affects judgments of intensity of both gustatory and olfactory flavors, and the contextual effects are modality-specific. Does context also exert separate effects on the gustatory and olfactory components of flavor mixtures? To answer this question, in each of
Colm Carraher et al.
PloS one, 7(6), e38391-e38391 (2012-06-16)
In insects, odorant receptors detect volatile cues involved in behaviours such as mate recognition, food location and oviposition. We have investigated the evolution of three odorant receptors from five species within the moth genera Ctenopseustis and Planotrotrix, family Tortricidae, which
Lina Hagvall et al.
Contact dermatitis, 67(1), 20-27 (2012-06-12)
The fragrance terpene geraniol forms sensitizing compounds via autoxidation and skin metabolism. Geranial and neral, the two isomers of citral, are the major haptens formed in both of these activation pathways. To investigate whether testing with oxidized geraniol detects more
Naoko Sato-Masumoto et al.
Phytochemistry, 104, 12-20 (2014-05-28)
Studies on the biosynthesis of oil compounds in Perilla will help in understanding regulatory systems of secondary metabolites and in elucidating reaction mechanisms for natural product synthesis. In this study, two types of alcohol dehydrogenases, an aldo-keto reductase (AKR) and
Xiaoqing Yang et al.
Journal of agricultural and food chemistry, 60(1), 402-409 (2011-12-14)
Multilayer emulsions containing citral were prepared by the layer-by-layer deposition technique based on the electrostatic interaction between negatively charged emulsion droplets and two positively charged biopolymer coatings, chitosan (CS) and ε-polylysine (EPL). The optimum concentrations of both CS and EPL
Maizom Hassan et al.
Bioscience, biotechnology, and biochemistry, 76(8), 1463-1470 (2012-08-11)
NADP(+)-dependent geraniol dehydrogenase (EC 1.1.1.183) is an enzyme that catalyzes the oxidation of geraniol to geranial. Stable, highly active cell-free extract was obtained from Polygonum minus leaves using polyvinylpolypyrrolidone, Amberlite XAD-4, glycerol, 2-mercaptoethanol, thiourea, and phenylmethylsulfonylfluoride in tricine-NaOH buffer (pH
2/2