1
|
Ordoudi SA, Ricci C, Imparato G, Chroni M, Nucara A, Gerardino A, Bertani FR. A non-invasive, sensor-based approach to exploit the autofluorescence of saffron (Crocus sativus L.) for on-site evaluation of aging. Food Chem 2024; 455:139822. [PMID: 38824730 DOI: 10.1016/j.foodchem.2024.139822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/04/2024]
Abstract
So far, compliance with ISO 3632 standard specifications for top-quality saffron guarantees good agricultural and post-harvest production practices. Tracking early-stage oxidation remains challenging. Our study aims to address this issue by exploring the visible, fluorescence, and near-infrared spectra of category I saffron. Using a multi-spectral sensor, we tested fresh and artificially aged saffron in powder form. High autofluorescence intensities at 600-700 nm allowed calibration for the 'content of aged saffron'. Samples with minimum coloring strength (200-220 units) were classified as 70% aged, while those exceeding maximum aroma strength (50 units) as 100% aged. Consistent patterns across origin, age, and processing history indicated potential for objectively assessing early-oxidation markers. Further analyses uncovered multiple contributing fluorophores, including cis-apocarotenoids, correlated with FTIR-based aging markers. Our findings underscore that sensing autofluorescence of traded saffron presents an innovative quality diagnostic approach, paving new research pathways for assessing the remaining shelf-life along its supply chain.
Collapse
Affiliation(s)
- S A Ordoudi
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - C Ricci
- Institute for Photonics and Nanotechnologies, CNR, Via del Fosso del Cavaliere 100, 00133 Rome, Italy.
| | - G Imparato
- Department of Physics, Sapienza University, Rome, Piazzale Aldo Moro 5, 00184 Rome, Italy.
| | - M Chroni
- Laboratory of Food Chemistry and Technology, School of Chemistry, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - A Nucara
- Department of Physics, Sapienza University, Rome, Piazzale Aldo Moro 5, 00184 Rome, Italy.
| | - A Gerardino
- Institute for Photonics and Nanotechnologies, CNR, Via del Fosso del Cavaliere 100, 00133 Rome, Italy.
| | - F R Bertani
- Institute for Photonics and Nanotechnologies, CNR, Via del Fosso del Cavaliere 100, 00133 Rome, Italy.
| |
Collapse
|
2
|
Mena-García A, Herrero-Gutiérrez D, Sanz ML, Díez-Municio M, Ruiz-Matute AI. Fingerprint of Characteristic Saffron Compounds as Novel Standardization of Commercial Crocus sativus Extracts. Foods 2023; 12:foods12081634. [PMID: 37107430 PMCID: PMC10137349 DOI: 10.3390/foods12081634] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Revised: 04/04/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Food supplements based on saffron (Crocus sativus L.) dried stigma extracts are widely consumed due to their multiple bioactive properties. Saffron extract (SE) standardization is of crucial importance, as it determines the reproducibility of the product quality and is essential for the evaluation of its bioactive effect and safety. Although SEs are commonly standardized considering their safranal content, the lack of specificity of the official methods may give inaccurate measurements. In addition to the development of more precise methodologies, the evaluation of alternative saffron components, such as crocins and picrocrocin, for standardization purposes would also be of interest. Thus, in this study, qualitative and quantitative information regarding picrocrocin and crocin isomers of different commercial saffron extracts was first obtained by a validated methodology using liquid chromatography (HPLC) coupled to diode array (DAD) and mass spectrometer (MS) detectors. Principal component analysis (PCA) was applied to gain insight into the compositional variability and natural grouping of SE. These studies suggested the potential use of the relative content of crocin isomers and trans-/cis-crocins and trans-4 GG/picrocrocin ratios as novel criteria for SE standardization. Their reproducibility and stability under controlled storage conditions for 36 months was demonstrated in a commercial standardized SE (affron®).
Collapse
Affiliation(s)
- Adal Mena-García
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
- Pharmactive Biotech Products, S.L.U. Faraday 7, 28049 Madrid, Spain
| | | | - María L Sanz
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| | | | - Ana I Ruiz-Matute
- Instituto de Química Orgánica General (CSIC), Juan de la Cierva 3, 28006 Madrid, Spain
| |
Collapse
|
3
|
Guo H, Ruan C, Zhan X, Pan H, Luo Y, Gao K. Crocetin Protected Human Hepatocyte LO2 Cell From TGF-β-Induced Oxygen Stress and Apoptosis but Promoted Proliferation and Autophagy via AMPK/m-TOR Pathway. Front Public Health 2022; 10:909125. [PMID: 35836988 PMCID: PMC9273739 DOI: 10.3389/fpubh.2022.909125] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
Objective To investigate the protective effects of crocetin against transforming growth factor-β (TGF-β)—induced injury in LO2 cells. Methods Human hepatocyte LO2 cells were pre-treated with crocetin (10 μM) for 6, 12, and 24 h, and then induced by TGF-β. Proliferation, oxidative stress, apoptosis, autophagy, and related proteins were assessed. Results Crocetin pre-treating promoted proliferation but suppressed apoptosis in TGF-β-induced LO2 cells. Crocetin protected LO2 cells from TGF-β-induced inflammation and oxygen stress by reducing reactive oxygen species (ROS) and malondialdehyde (MDA) but enhancing superoxide dismutase (SOD) and glutathione (GSH). Autophagy was suppressed in TGF-β but crocetin promoted autophagy in LO2 cells by mediating Adenosine 5'-monophosphate—activated protein kinase (AMPK)/mammalian target of rapamycin (m-TOR) signaling pathway via upregulating p-AMPK and p-Beclin-1 but downregulating p-mTOR. Conclusions Crocetin protected LO2 cells from TGF-β-induced damage by promoting proliferation and autophagy, and suppressing apoptosis and anti-inflammation via regulation of AMPK/m-TOR signaling pathway.
Collapse
Affiliation(s)
- Hongxing Guo
- Department of Gastroenterology, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Chenyu Ruan
- Department of Gastroenterology, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Xiuhong Zhan
- Department of Gastroenterology, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Hao Pan
- Department of Gastroenterology, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Yumei Luo
- Department of Gastroenterology, The Fifth Affiliated Hospital, Southern Medical University, Guangzhou, China
| | - Ke Gao
- Department of Pathology, Foshan Fosun Chancheng Hospital, Foshan, China
- *Correspondence: Ke Gao
| |
Collapse
|
4
|
Martínez S, Carballo J. Physicochemical, Sensory and Nutritional Properties of Foods Affected by Processing and Storage. Foods 2021; 10:foods10122970. [PMID: 34945521 PMCID: PMC8701254 DOI: 10.3390/foods10122970] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Accepted: 11/29/2021] [Indexed: 01/26/2023] Open
|
5
|
Kadoglou NPE, Christodoulou E, Kostomitsopoulos N, Valsami G. The cardiovascular-protective properties of saffron and its potential pharmaceutical applications: A critical appraisal of the literature. Phytother Res 2021; 35:6735-6753. [PMID: 34448254 DOI: 10.1002/ptr.7260] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2021] [Revised: 08/09/2021] [Accepted: 08/11/2021] [Indexed: 12/17/2022]
Abstract
Saffron, the dried stigma of Crocus sativus L., is used in traditional medicine for its healing properties and the treatment of various pathological conditions. The present literature review aimed to summarize and evaluate the preclinical and clinical data regarding the protective effects and mechanisms of saffron and its main components (crocin, crocetin, safranal) on cardiovascular risk factors and diseases. Many in vitro and animal studies have been conducted implicating antioxidant, hypolipidemic, anti-diabetic, and antiinflammatory impact of saffron and its constituents. Notably, there is evidence of direct atherosclerosis regression and stabilization in valid atherosclerosis-prone animal models. However, current clinical trials have shown mostly weak effects of saffron and its constituents on cardiovascular risk factors: (a) Modest lowering of fasting blood glucose, without significant reduction of HbA1c in type 2 diabetic patients, (b) moderate/controversial hypolipidemic effects, (c) negligible hypotensive effect, and (d) inconsistent modification of metabolic syndrome parameters. There are important drawbacks in clinical trial design, including the absence of pharmacokinetic/pharmacodynamic tests, the wide variance of doses and cohorts' characteristics, the small number of patients, the short duration. Therefore, large, properly designed, high-quality clinical trials, focusing on specific conditions are required to evaluate the biological/pharmacological activities and firmly establish the clinical efficacy of saffron and its possible therapeutic uses in cardiovascular diseases.
Collapse
Affiliation(s)
| | - Eirini Christodoulou
- Laboratory of Biopharmaceutics-Pharmacokinetics, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| | - Nikolaos Kostomitsopoulos
- Center of Clinical Experimental Surgery and Translational Research, Biomedical Research Foundation, Academy of Athens, Athens, Greece
| | - Georgia Valsami
- Laboratory of Biopharmaceutics-Pharmacokinetics, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Athens, Greece
| |
Collapse
|
6
|
Partial Characterization of the Impact of Saffron on the Sensory and Physicochemical Quality Traits of Dry-Cured Ham. Foods 2021; 10:foods10071506. [PMID: 34209860 PMCID: PMC8305926 DOI: 10.3390/foods10071506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 06/25/2021] [Accepted: 06/25/2021] [Indexed: 11/17/2022] Open
Abstract
This study determined the effect of adding three concentrations of saffron (A: high, B: medium, and C: low) on vacuum-packaged dry-cured ham slices. The pH and the color coordinates were assessed at 0, 7, 14, 28 and 60 days of storage, and sensorial quality (visual appearance, odor and flavor) and safranal content were analyzed at 7, 14, 28 and 60 days. Saffron concentration did not significantly affect the pH or color (except in a* (redness) and b* (yellowness) at day 28; p < 0.001). Storage period affected pH values (p < 0.001) in all groups with a significant decline from day 28 (p < 0.05); the color coordinates showed a high stability (only L* (lightness) varied in the C group samples; p < 0.01). Sensorial quality did not vary with the time in any group. Significant differences were found among groups in visual appearance (p < 0.05) and flavor (p < 0.001) at day 14 and in odor at day 14, 28, and 60. In general, the C group samples obtained the highest scores. Safranal content varied significantly with the time in a different way in each group, with differences among groups at day 14 and 60 (p < 0.001).
Collapse
|
7
|
Determination of Saffron Volatiles by HS-SBSE-GC in Flavored Cured Ham. Molecules 2021; 26:molecules26072073. [PMID: 33916526 PMCID: PMC8038465 DOI: 10.3390/molecules26072073] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 11/27/2022] Open
Abstract
At present, the development of new agri-food products, including flavored meat products presented in ready-to-eat vacuum packs, is encouraged. The addition of ingredients used as flavoring agents creates the need to be able to determine the volatile compounds responsible for their characteristic aroma. The aim of this study is to propose, develop, and validate a new method that uses headspace-stir bar sorptive extraction-gas chromatography/mass spectrometry (HS-SBSE-GC/MS) to determine the saffron aroma in cured ham flavored with this spice. Results showed that safranal was the main volatile compound that could be identified and quantified in cured ham flavored with saffron. This analytical method was adequate in terms of linearity, selectivity, sensitivity, and accuracy. To our knowledge, this is the first time that an HS-SBSE-GC/MS method for determining the saffron aroma of flavored cured ham has been developed and validated, and it is of interest to agri-food industries.
Collapse
|