Molecular species fingerprinting and quantitative analysis of saffron (<i>Crocus sativus</i>L.) for quality control by MALDI mass spectrometry

Aiello, Donatella; Siciliano, Carlo; Mazzotti, Fabio; Donna, Leonardo Di; Athanassopoulos, Constantinos M.; Napoli, Anna

doi:10.1039/c8ra07484d

Cited by 34 publications

(20 citation statements)

References 58 publications

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“…These data were compared with experimental and literature data, those for the flavonoids and apocarotenoids present in Crocus species (SR2, Supporting Information for reviewers). 30 , 33 − 40 …”

Section: Results and Discussionmentioning

confidence: 99%

Quantitative Determination and Characterization of a Kashmir Saffron (Crocus sativus L.)-Based Botanical Supplement Using Single-Laboratory Validation Study by HPLC-PDA with LC–MS/MS and HPTLC Investigations

et al. 2021

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Food ingredients hold a higher nutritional value as a botanical supplement playing a vital role in modifying and maintaining the physiological conditions that improve human health benefits. The Kashmir saffron ( Crocus sativus L; KCS) obtained from dried stigmas is known for its aroma precursors and apocarotenoid derivatives, imparting a wide range of medicinal values and therapeutic benefits. In the present study, a simultaneous determination of apocarotenoids and flavonoids in stigma-based botanical supplements was carried out using analytical investigations. The high-performance thin-layer chromatography-based qualitative analysis of the raw material (stigmas, stamens, and tepals) and stigma extract has been carried out to identify apocarotenoids and flavonoids. The rapid HPLC-PDA method for the simultaneous quantification of KCS apocarotenoids was robust, precise (<5.0%), linear ( R 2 > 0.99), and accurate (80–110%) as per the single-laboratory validation data. Furthermore, the combined-expanded uncertainty (95%; K = 2) was calculated and found as 0.0035–0.007% (<5.0%) as per the EURACHEM guide for this HPLC analysis. Additionally, an untargeted identification of 36 compounds in the botanical supplement was based on the elution order, UV–vis spectra, mass fragmentation pattern, and standards by ESI-MS/MS analysis with comprehensive chromatographic fingerprinting. Thus, these analytical approaches enable a composite profile of the stigma-based extract as a potential supplement for human health benefits.

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Section: Results and Discussionmentioning

confidence: 99%

Quantitative Determination and Characterization of a Kashmir Saffron (Crocus sativus L.)-Based Botanical Supplement Using Single-Laboratory Validation Study by HPLC-PDA with LC–MS/MS and HPTLC Investigations

et al. 2021

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“…Therefore, the measurement of the endogenous phenomena is planned through sample dilution followed by MS analysis. The (+) MALDI-TOF-MS technique is chosen because it was shown that it can be used for the highly sensitive analysis of low-molecular weight compounds in complex matrices. ,,, Direct MS analysis of the natural matrix and/or whole extracts has been proposed as a useful and robust approach to the chemical fingerprinting. The (+) MALDI-TOF-MS technique is extremely advantageous due to high sensitivity, tolerance to contaminants, and the ability to detect different components in highly complex mixtures. , Furthermore, it can be combined with a rapid and simple sample preparation method, such as the dilution of the specimen, preventing any possible analyte loss.…”

Section: Resultsmentioning

confidence: 99%

“…Much attention is being focused on potassium because potassium concentration increases after death. − A multiparametric platform and thermogravimetry studies based on the evaluation of micro- and macroelements followed by chemometric analysis have proved to be rapid and cost-effective approaches for the PMI estimation, , allowing sample differentiation day-by-day . Mass spectrometry (MS) is by far the dominating analytical platform in metabolomics. , The high selectivity, accuracy, and sensitivity of MS along with its compatibility with separation techniques and ability to provide qualitative and quantitative data make MS an ideal technique for metabolomic applications. The detection of a complete set of low-molecular-weight metabolites from biological samples allows drawing an “instant picture” of an individual’s physiological condition. , The primary advantage of an untargeted metabolomic analysis is to obtain an unbiased means to evaluate the relationship between different metabolites.…”

Section: Introductionmentioning

confidence: 99%

Analytical Strategy for MS-Based Thanatochemistry to Estimate Postmortem Interval

et al. 2021

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An analytical strategy for a matrix-assisted laser desorption mass spectrometry-based untargeted metabolomic study on vitreous humor (VH) was developed, looking for statistically significant parameters correlated to death time estimation. Five incubation stages of VH, 0, 24, 48, 72, and 96 h, at physiological pH and controlled temperature, were adopted to monitor time-dependent changes and correlate them with the postmortem interval (PMI). Using two multivariate statistical approaches, principal component regression (PCR) and partial least squares regression (PLSR), the PMI was assessed, considering the m/z values from mass spectra and the incubation time (ISt) as predictors. An independent validation set was used to evaluate the predictive capability of the models through the coefficient of determination (R 2 ) and the root-mean-square error (RMSE). Different pre-treatments were applied to the raw mass spectra, and their performance in assessing PMI was evaluated. Based on the best outcomes in terms of both R 2 and RMSE, multiplicative scatter correction combined with a logarithmic transformation was chosen. The results of PCR and PLSR based on the selected pre-treatment are encouraging because validation R 2 is about 0.95 for both models. Moreover, the prediction error is 6 h for both models, when PMI is lower than 1 day. Although these results are obtained by the uncritical application of the models, they are comparable to or even better than those reported in the literature. Notwithstanding, we consider that many in situ influences, such as passive diffusion, functional loss of tissues, and advanced autolytic processes, could not get captured in vitro. However, the developed approach was optimized using VH samples and overcomes the limitations of the vast majority of methods that require validation for serum and/or urine samples.

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“…The other two studies were both performed by Aiello at al., using MS or MS/MS as mass analyzer and curcumin as the non-isotopic isobaric internal standard. In the first one [102], powdered saffron was subjected to a onestep sample pre-treatment and subjected to MALDI analysis. Crocins C-1-C-6, flavonols, unknown highly glycosylated crocins C-7, C-8, and C-9, and carotenoid-derived metabolites were detected.…”

Section: Fruits and Vegetablesmentioning

confidence: 99%

MALDI-TOF Mass Spectrometry Applications for Food Fraud Detection

Zambonin

2021

Applied Sciences

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Chemical analysis of food products relating to the detection of the most common frauds is a complex task due to the complexity of the matrices and the unknown nature of most processes. Moreover, frauds are becoming more and more sophisticated, making the development of reliable, rapid, cost-effective new analytical methods for food control even more pressing. Over the years, MALDI-TOF MS has demonstrated the potential to meet this need, also due to a series of undeniable intrinsic advantages including ease of use, fast data collection, and capability to obtain valuable information even from complex samples subjected to simple pre-treatment procedures. These features have been conveniently exploited in the field of food frauds in several matrices, including milk and dairy products, oils, fish and seafood, meat, fruit, vegetables, and a few other categories. The present review provides a comprehensive overview of the existing MALDI-based applications for food quality assessment and detection of adulterations.

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Molecular species fingerprinting and quantitative analysis of saffron (Crocus sativusL.) for quality control by MALDI mass spectrometry

Abstract: Herein we describe a rapid, simple, and reliable method for the quantitative analysis and molecular species fingerprinting of saffron (Crocus sativus L.) by direct MS and MS/MS analysis.

Cited by 34 publications

References 58 publications

Quantitative Determination and Characterization of a Kashmir Saffron (Crocus sativus L.)-Based Botanical Supplement Using Single-Laboratory Validation Study by HPLC-PDA with LC–MS/MS and HPTLC Investigations

Quantitative Determination and Characterization of a Kashmir Saffron (Crocus sativus L.)-Based Botanical Supplement Using Single-Laboratory Validation Study by HPLC-PDA with LC–MS/MS and HPTLC Investigations

Analytical Strategy for MS-Based Thanatochemistry to Estimate Postmortem Interval

MALDI-TOF Mass Spectrometry Applications for Food Fraud Detection

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