kaempferol 3 o sophoroside/crocus

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Crocus sativus Petals: Waste or Valuable Resource? The Answer of High-Resolution and High-Resolution Magic Angle Spinning Nuclear Magnetic Resonance.

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Intact Crocus sativus petals were studied for the first time by high-resolution magic angle spinning nuclear magnetic resonance (HR-MAS NMR) spectroscopy, revealing the presence of kinsenoside (2) and goodyeroside A (3), together with 3-hydroxy-γ-butyrolactone (4). These findings were confirmed by

A novel method for the quality control of saffron through the simultaneous analysis of authenticity and adulteration markers by liquid chromatography-(quadrupole-time of flight)-mass spectrometry.

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A liquid chromatography-(quadrupole-time of flight)-mass spectrometry methodology was developed to assess the authenticity of saffron through the analysis of a group of kaempferol derivatives recently proposed as novel authenticity markers as a result of a metabolomic study of saffron (kaempferol

Saffron Flower Extract Promotes Scratch Wound Closure of Keratinocytes and Enhances VEGF Production.

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During saffron (Crocus sativus) spice production, large amounts of floral biowaste are generated. It was the aim of this study to develop a value-added product from saffron floral biowaste to be used as a natural cosmetic ingredient. HPLC-PDA-MS analysis of saffron flower extracts revealed the

Kinetics of polyphenol content of dry flowers and floral bio-residues of saffron at different temperatures and relative humidity conditions.

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The cultivation of Crocus sativus L. is valued for its dried stigmas, but the rest of the parts of its flowers are increasingly important. Saffron flowers (SF) are natural sources of antioxidant compounds. Kaempferols and anthocyanins are the main compounds of the high-phenolic content of SF. This

Comprehensive chemotaxonomic analysis of saffron crocus tepal and stamen samples, as raw materials with potential antidepressant activity.

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Saffron crocus (Crocus sativus L.) has been widely grown in Iran. Its stigma is considered as the most valuable spice for which several pharmacological activities have been reported in preclinical and clinical studies, the antidepressant effect being the most thoroughly studied and confirmed. This

Flavonoid Determination in the Quality Control of Floral Bioresidues from Crocus sativus L.

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A high-performance liquid chromatography with photodiode array detection method (HPLC-DAD) was validated for the analysis of floral bioresidues obtained in saffron spice production by using three different solvent mixtures [water/hydrochloric acid (HCl) (100:1, v/v),

An integrated approach combining HPLC, GC/MS, NIRS, and chemometrics for the geographical discrimination and commercial categorization of saffron.

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In the present study, an integrated approach combining HPLC/DAD, GC/MS, near infrared (NIR) spectroscopy, and chemometrics was used to geographically discriminate saffron samples from Iran and China. Chinese and Iranian samples can be well-separated based on HPLC data analysed by a principal

Novel insight into utilization of flavonoid glycosides and biological properties of saffron (Crocus sativus L.) flower by-products

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Saffron (Crocus sativus L.) by-products considered as a cheap source of bioactive polyphenolics endowed with potential antioxidant effects. The saffron biowaste utilized for extraction of flavonoid glycosides and their potential biological properties. The total amount of polyphenolics and

Impact of two different dehydration methods on saffron quality, concerning the prevalence of Saffron latent virus (SaLV) in Iran

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The dehydration process is a prerequisite to preserve saffron for a long time. According to this process, saffron shows differences in the main compounds responsible for its quality (colour, taste, aroma, and flavonol content). At present, the freeze-drying method obtains dried products with the

Metabolomic fingerprinting of saffron by LC/MS: novel authenticity markers.

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An untargeted metabolomic approach using liquid chromatography coupled to electrospray ionization time-of-flight mass spectrometry was developed in this work to identify novel markers for saffron authenticity which is an important matter related to consumer protection, quality assurance, active

Characterization of a glucosyltransferase enzyme involved in the formation of kaempferol and quercetin sophorosides in Crocus sativus.

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UGT707B1 is a new glucosyltransferase isolated from saffron (Crocus sativus) that localizes to the cytoplasm and the nucleus of stigma and tepal cells. UGT707B1 transcripts were detected in the stigma tissue of all the Crocus species analyzed, but expression analysis of UGT707B1 in tepals revealed

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