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picrocrocin/crocus sativus
Saite tiek saglabāta starpliktuvē
Lappuse 1 no 89 rezultātiem
Simultaneous quantification of crocetin esters and picrocrocin changes in Chinese saffron by high-performance liquid chromatography-diode array detector during 15 years of storage.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
BACKGROUND
Saffron, which is made up of the dried stigmas of Crocus sativus L., has been successfully cultivated in China since 1970s and Zhejiang province is now the largest producing area in China, but the contents of crocetin esters and picrocrocin in saffron from Zhejiang province has not been
Efficient production of saffron crocins and picrocrocin in Nicotiana benthamiana using a virus-driven system
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Crocins and picrocrocin are glycosylated apocarotenoids responsible, respectively, for the color and the unique taste of the saffron spice, known as red gold due to its high price. Several studies have also shown the health-promoting properties of these compounds. However, their high costs hamper
Picrocrocin kinetics in aqueous saffron spice extracts (Crocus sativus L.) upon thermal treatment.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
The kinetics of picrocrocin degradation in aqueous extracts of saffron upon thermal treatment from 5 to 70 °C have been studied, together with the degradation of purified picrocrocin in water at 100 °C. The best fits to experimental data were found for a second-order kinetics model. Picrocrocin
Rapid determination of crocetin esters and picrocrocin from saffron spice (Crocus sativus L.) using UV-visible spectrophotometry for quality control.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
The aim of this work was the development of multivariate models able to determine the content of the main crocetin esters and picrocrocin from spectrophotometric data that could be used for routine quality control of saffron. These compounds were determined with HPLC in Spanish saffron, and their
Separation of picrocrocin, cis-trans-crocins and safranal of saffron using high-performance liquid chromatography with photodiode-array detection.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
High-performance liquid chromatography with photodiode-array detection was used to separate picrocrocin (bitter-tasting component, glucoside of safranal), cis/trans-crocins (carotenoids, glucosyl esters of crocetin) and safranal (flavour, monoterpene aldehyde) of saffron. All components of pure red
Crocetin esters, picrocrocin and its related compounds present in Crocus sativus stigmas and Gardenia jasminoides fruits. Tentative identification of seven new compounds by LC-ESI-MS.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Crocetin esters present in saffron (Crocus sativus L.) stigmas and in Gardenia jasminoides Ellis fruit are the compounds responsible for their color. Of the fifteen crocetin esters identified in this study, five new compounds were tentatively identified: trans and cis isomers of crocetin
Cellular Transport and Bioactivity of a Major Saffron Apocarotenoid, Picrocrocin (4-(β-D-Glucopyranosyloxy)-2,6,6-trimethyl-1-cyclohexene-1-carboxaldehyde).
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
The cellular transport and bioactivity of the second major saffron apocarotenoid, picrocrocin, was examined in parallel to that of the major group, crocetin sugar esters, in aqueous extracts. The transport of pure picrocrocin was investigated in comparison to that of other saffron apocarotenoids,
Sensory Threshold Studies of Picrocrocin, the Major Bitter Compound of Saffron.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
This study is part of a wider project on the bitter taste of saffron and its preparations. A deeper knowledge on the taste perception of picrocrocin is necessary in order to develop products that satisfy consumer senses and provide them with adequate amounts of saffron major constituents, also
Picrocrocin content and quality categories in different (345) worldwide samples of saffron ( Crocus sativus L.).
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
In this paper, 345 saffron samples were analyzed from different countries to study their picrocrocin content using different analytical techniques. The E1cm 1% of 257 nm results from all samples are inflated in comparison by the high-performance liquid chromatography (HPLC) data, because of the
Quantitation of Crocins and picrocrocin in saffron by HPLC: application to quality control and phytochemical differentiation from other crocus taxa.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
A chromatographic method was developed and fully validated for the determination of the major saffron constituents, i.e., picrocrocin and five major crocins. Dried samples (styles of Crocus sativus and other Crocus taxa) were extracted with MeOH : water (1 : 1, v/v), and chromatographic separation
Comparison of different tandem mass spectrometric techniques (ESI-IT, ESI- and IP-MALDI-QRTOF and vMALDI-TOF/RTOF) for the analysis of crocins and picrocrocin from the stigmas of Crocus sativus L.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
BACKGROUND
The expensive spice saffron originating from the stigmas of Crocus sativus L. and also applied in traditional Chinese medicine (TCM) constitutes a complex mixture of glycoconjugates varying not only in the aglycon structure, but also in glycosylation pattern. Therefore, various tandem
Rapid isolation and characterization of crocins, picrocrocin, and crocetin from saffron using centrifugal partition chromatography and LC-MS.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
This study demonstrates a simple method for one-step isolation of the main secondary metabolites of a hydroalcoholic extract of Crocus sativus stigmas (saffron) using step-gradient centrifugal partition chromatography. The analysis was performed in dual and elution-extrusion mode, using five
UGT709G1: a novel uridine diphosphate glycosyltransferase involved in the biosynthesis of picrocrocin, the precursor of safranal in saffron (Crocus sativus).
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Saffron, a spice derived from the dried red stigmas of Crocus sativus, is one of the oldest natural food additives. The flowers have long red stigmas, which store significant quantities of the glycosylated apocarotenoids crocins and picrocrocin. The apocarotenoid biosynthetic pathway in saffron
Crocin, safranal and picrocrocin from saffron (Crocus sativus L.) inhibit the growth of human cancer cells in vitro.
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
Extracts of saffron (Crocus sativus L.) have been reported to inhibit cell growth of human tumor cells. In order to study the cytotoxic effect of the characteristic compounds of saffron spice, we have isolated crocin, crocetin, picrocrocin and safranal. Doses inducing 50% cell growth inhibition
Bacillus subtilis FZB24 affects flower quantity and quality of saffron (Crocus sativus).
Rakstu tulkošanu var veikt tikai reģistrēti lietotāji
Ielogoties Reģistrēties
The effect of Bacillus subtilis FZB24 on saffron ( Crocus sativus L.) was studied using saffron corms from Spain and the powdered form of B. SUBTILIS FZB24(R). Corms were soaked in water or in B. subtilis FZB24 spore solution for 15 min before sowing. Some corms were further soil drenched with the
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