1
|
Shinde R, Vinokur Y, Fallik E, Rodov V. Effects of Genotype and Modified Atmosphere Packaging on the Quality of Fresh-Cut Melons. Foods 2024; 13:256. [PMID: 38254557 PMCID: PMC10815012 DOI: 10.3390/foods13020256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Marketing melons (Cucumis melo) as convenient fresh-cut products is popular nowadays. However, damage inflicted by fresh-cut processing results in fast quality degradation and food safety risks. The life of fresh-cut produce can be extended by a modified atmosphere (MA), either generated in a package by tissue respiration (a passive MA) or injected by gas flushing (an active MA). This work investigated the effect of passive and active MA formed in packages of different perforation levels on the quality of fresh-cut melons of two genetic groups: C. melo var. cantalupensis, characterized by climacteric fruit behavior, and non-climacteric C. melo inodorus. The best product preservation was achieved in passive MA packages: non-perforated for inodorus melons and micro-perforated for cantalupensis ones. The optimal packages allowed for the preservation of both genotypes for 14 days at 6-8 °C. The major factors limiting the shelf life of fresh-cut melons were microbial spoilage, translucency disorder and hypoxic fermentation associated with cantalupensis melons with enhanced ethyl acetate accumulation. Inodorus melons were found to be preferable for fresh-cut processing since they were less prone to fermented off-flavor development.
Collapse
Affiliation(s)
- Ranjeet Shinde
- Department of Postharvest Science, Agricultural Research Organization (ARO), The Volcani Institute, Rishon LeZion 7505101, Israel; (R.S.); (Y.V.); (E.F.)
- The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel
| | - Yakov Vinokur
- Department of Postharvest Science, Agricultural Research Organization (ARO), The Volcani Institute, Rishon LeZion 7505101, Israel; (R.S.); (Y.V.); (E.F.)
| | - Elazar Fallik
- Department of Postharvest Science, Agricultural Research Organization (ARO), The Volcani Institute, Rishon LeZion 7505101, Israel; (R.S.); (Y.V.); (E.F.)
| | - Victor Rodov
- Department of Postharvest Science, Agricultural Research Organization (ARO), The Volcani Institute, Rishon LeZion 7505101, Israel; (R.S.); (Y.V.); (E.F.)
| |
Collapse
|
2
|
Sela A, Shkuri N, Tish N, Vinokur Y, Rodov V, Poverenov E. Carboxymethyl chitosan-quercetin conjugate: A sustainable one-step synthesis and use for food preservation. Carbohydr Polym 2023; 316:121084. [PMID: 37321704 DOI: 10.1016/j.carbpol.2023.121084] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/11/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023]
Abstract
Bioactive polysaccharide, carboxymethyl chitosan-quercetin (CMCS-q) was prepared by a one-step reaction utilizing Schiff base chemistry. Notably, the presented conjugation method involves neither radical reactions nor auxiliary coupling agents. Physicochemical properties and bioactivity of the modified polymer were studied and compared to those of the pristine carboxymethyl chitosan, CMCS. The modified CMCS-q demonstrated antioxidant activity by TEAC assay and antifungal activity by inhibiting spore germination of plant pathogen Botrytis cynerea. Then, CMCS-q was applied as an active coating on fresh-cut apples. The treatment resulted in enhanced firmness, inhibited browning and improved microbiological quality of the food product. The presented conjugation method allows retaining antimicrobial and antioxidant activity of quercetin moiety in the modified biopolymer. This method can be further used as a platform for binding ketone/aldehyde-containing polyphenols and other natural compounds to form various bioactive polymers.
Collapse
Affiliation(s)
- Aviad Sela
- Agro-Nanotechnology and Advanced Materials Center, Department of Food Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel.
| | - Noa Shkuri
- Agro-Nanotechnology and Advanced Materials Center, Department of Food Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel; Institute of Biochemistry, Food Science and Nutrition, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 7610001, Israel.
| | - Nimrod Tish
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel; The Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel.
| | - Yakov Vinokur
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel.
| | - Victor Rodov
- Department of Postharvest Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel.
| | - Elena Poverenov
- Agro-Nanotechnology and Advanced Materials Center, Department of Food Science, Agricultural Research Organization, The Volcani Institute, Rishon LeZion 7505101, Israel.
| |
Collapse
|
3
|
Bilbao-Sainz C, Chiou BS, Williams T, Wood D, Du WX, Sedej I, Ban Z, Rodov V, Poverenov E, Vinokur Y, McHugh T. Vitamin D-fortified chitosan films from mushroom waste. Carbohydr Polym 2017; 167:97-104. [PMID: 28433182 DOI: 10.1016/j.carbpol.2017.03.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 02/10/2017] [Accepted: 03/05/2017] [Indexed: 11/18/2022]
Abstract
Brown mushroom (Agaricus bisporus) stalk bases from mushroom waste were treated with UV-B light to rapidly increase vitamin D2 content. Chitin was also recovered from this waste and converted into chitosan by N-deacetylation. FTIR spectra showed that the mushroom chitosan were similar to chitosan from animal sources. Chitosan films were prepared using high molecular weight (HW), low molecular weight (LW) and fungal chitosan. UV-B treated mushroom particles were also incorporated into fungal chitosan films. The fungal chitosan films showed similar density, porosity and water vapor barrier properties to the LW and HW chitosan films. However, fungal chitosan films were more hydrophobic and less flexible than the LW and HW chitosan films. Addition of mushroom particles did not significantly affect mechanical or water barrier properties of the fungal chitosan films.
Collapse
Affiliation(s)
- Cristina Bilbao-Sainz
- Healthy Processed Foods Research, U.S. Department of Agriculture, Albany, CA, United States.
| | - Bor-Sen Chiou
- Bioproducts Research Unit, U.S. Department of Agriculture, Albany, CA, United States
| | - Tina Williams
- Bioproducts Research Unit, U.S. Department of Agriculture, Albany, CA, United States
| | - Delilah Wood
- Bioproducts Research Unit, U.S. Department of Agriculture, Albany, CA, United States
| | - Wen-Xian Du
- Healthy Processed Foods Research, U.S. Department of Agriculture, Albany, CA, United States
| | - Ivana Sedej
- Healthy Processed Foods Research, U.S. Department of Agriculture, Albany, CA, United States
| | - Zhaojun Ban
- Postharvest and Food Science Institute, Agricultural Research Organization, The Volcani Center, Rishon LeZion, 50250, Israel
| | - Victor Rodov
- Postharvest and Food Science Institute, Agricultural Research Organization, The Volcani Center, Rishon LeZion, 50250, Israel
| | - Elena Poverenov
- Postharvest and Food Science Institute, Agricultural Research Organization, The Volcani Center, Rishon LeZion, 50250, Israel
| | - Yakov Vinokur
- Postharvest and Food Science Institute, Agricultural Research Organization, The Volcani Center, Rishon LeZion, 50250, Israel
| | - Tara McHugh
- Healthy Processed Foods Research, U.S. Department of Agriculture, Albany, CA, United States
| |
Collapse
|
4
|
Chkhikvishvili I, Sanikidze T, Gogia N, Enukidze M, Machavariani M, Kipiani N, Vinokur Y, Rodov V. Constituents of French Marigold (Tagetes patula L.) Flowers Protect Jurkat T-Cells against Oxidative Stress. Oxid Med Cell Longev 2016; 2016:4216285. [PMID: 27433287 PMCID: PMC4940552 DOI: 10.1155/2016/4216285] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Revised: 04/03/2016] [Accepted: 04/27/2016] [Indexed: 01/06/2023]
Abstract
The flowers of French marigold (Tagetes patula L.) are widely used in folk medicine, in particular for treating inflammation-related disorders. However, cellular mechanisms of this activity demand further investigation. In the present work, we studied the potential of T. patula compounds to alleviate the oxidative stress in hydrogen peroxide-challenged human lymphoblastoid Jurkat T-cells. Crude extracts of marigold flowers and purified fractions containing flavonoids patuletin, quercetagetin, and quercetin and their derivatives, as well as the carotenoid lutein, were brought in contact with Jurkat cells challenged with 25 or 50 μM H2O2. Hydrogen peroxide caused oxidative stress in the cells, manifested as generation of superoxide and peroxyl radicals, reduced viability, arrested cell cycle, and enhanced apoptosis. The stress was alleviated by marigold ingredients that demonstrated high radical-scavenging capacity and enhanced the activity of antioxidant enzymes involved in neutralization of reactive oxygen species. Flavonoid fraction rich in quercetin and quercetagetin showed the highest cytoprotective activity, while patuletin in high dose exerted a cytotoxic effect associated with its anticancer potential. T. patula compounds enhanced the production of anti-inflammatory and antioxidant interleukin-10 (IL-10) in Jurkat cells. Both direct radical-scavenging capacity and stimulation of protective cellular mechanisms can underlay the anti-inflammatory properties of marigold flowers.
Collapse
Affiliation(s)
- Irakli Chkhikvishvili
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Avenue, 0177 Tbilisi, Georgia
| | - Tamar Sanikidze
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Avenue, 0177 Tbilisi, Georgia
| | - Nunu Gogia
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Avenue, 0177 Tbilisi, Georgia
| | - Maia Enukidze
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Avenue, 0177 Tbilisi, Georgia
| | - Marine Machavariani
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Avenue, 0177 Tbilisi, Georgia
| | - Nana Kipiani
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Avenue, 0177 Tbilisi, Georgia
| | - Yakov Vinokur
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, HaMaccabim Road 68, P.O. Box 15159, 7528809 Rishon LeZion, Israel
| | - Victor Rodov
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, HaMaccabim Road 68, P.O. Box 15159, 7528809 Rishon LeZion, Israel
| |
Collapse
|
5
|
Dogra N, Choudhary R, Kohli P, Haddock JD, Makwana S, Horev B, Vinokur Y, Droby S, Rodov V. Polydiacetylene nanovesicles as carriers of natural phenylpropanoids for creating antimicrobial food-contact surfaces. J Agric Food Chem 2015; 63:2557-2565. [PMID: 25697369 DOI: 10.1021/jf505442w] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The ultimate goal of this study was developing antimicrobial food-contact materials based on natural phenolic compounds using nanotechnological approaches. Among the methyl-β-cyclodextrin-encapsulated phenolics tested, curcumin showed by far the highest activity toward Escherichia coli with a minimum inhibitory concentration of 0.4 mM. Curcumin was enclosed in liposome-type polydiacetylene/phosholipid nanovesicles supplemented with N-hydroxysuccinimide and glucose. The fluorescence spectrum of the nanovesicles suggested that curcumin was located in their bilayer region. Free-suspended nanovesicles tended to bind to the bacterial surface and demonstrated bactericidal activity toward Gram-negative (E. coli) and vegetative cells of Gram-positive (Bacillus cereus) bacteria reducing their counts from 5 log CFU mL(-1) to an undetectable level within 8 h. The nanovesicles were covalently bound to silanized glass. Incubation of E. coli and B. cereus with nanovesicle-coated glass resulted in a 2.5 log reduction in their counts. After optimization this approach can be used for controlling microbial growth, cross-contamination, and biofilm formation on food-contacting surfaces.
Collapse
Affiliation(s)
- Navneet Dogra
- College of Science, 1245 Lincoln Drive, Neckers 157A, Southern Illinois University , Carbondale Illinois 62901-4403, United States
| | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Shlar I, Poverenov E, Vinokur Y, Horev B, Droby S, Rodov V. High-Throughput Screening of Nanoparticle-Stabilizing Ligands: Application to Preparing Antimicrobial Curcumin Nanoparticles by Antisolvent Precipitation. Nanomicro Lett 2015; 7:68-79. [PMID: 30464958 PMCID: PMC6223933 DOI: 10.1007/s40820-014-0020-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2014] [Revised: 10/27/2014] [Accepted: 11/04/2014] [Indexed: 05/06/2023]
Abstract
Water-dispersible curcumin nanoparticles were prepared by bottom-up antisolvent precipitation approach. A new high-throughput screening technique was developed for selecting appropriate ligands stabilizing the nanoparticles in aqueous medium and improving their performance. The initial set of twenty-eight potential stabilizing ligands was evaluated based on their capacity to improve curcumin dispersibility in aqueous medium. The performance of four promising ligands (amino acid proline, polyphenol tannic acid, polycation Polyquaternium 10, and neutral polymer polyvinylpyrrolidone) was tested in ultrasound-aided antisolvent precipitation trials. Using the selected stabilizing ligands diminished the average particle size from ca. 1,200 to 170-230 nm, reduced their dispersity, improved stability, and allowed reaching curcumin concentration of up to 1.4 mM in aqueous medium. Storage stability of the aqueous nanodispersions varied from 2 days to 2 weeks, depending on stabilizing ligand. Studying the effects of ionic strength and pH on size and ζ-potential of the particles suggested that electrostatic forces and hydrophobic interactions could be the major factors affecting their stability. The ligand-protected nanoparticles showed minimal inhibitory concentration of 400 or 500 µM toward Escherichia coli. We suggest that the presented screening approach may be useful for preparing nanoparticles of various poorly water-soluble bioactive materials.
Collapse
Affiliation(s)
- Ilya Shlar
- Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
- Institute of Biochemistry, Food Science and Nutrition, Hebrew University of Jerusalem, Rehovot, Israel
| | - Elena Poverenov
- Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Yakov Vinokur
- Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Batia Horev
- Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Samir Droby
- Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| | - Victor Rodov
- Institute of Postharvest and Food Sciences, Agricultural Research Organization, The Volcani Center, Bet Dagan, Israel
| |
Collapse
|
7
|
Turgeman T, Kakongi N, Schneider A, Vinokur Y, Teper-Bamnolker P, Carmeli S, Levy M, Skory CD, Lichter A, Eshel D. Induction of Rhizopus oryzae germination under starvation using host metabolites increases spore susceptibility to heat stress. Phytopathology 2014; 104:240-247. [PMID: 24093921 DOI: 10.1094/phyto-08-13-0245-r] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Sweetpotato is a nutritional source worldwide. Soft rot caused by Rhizopus spp. is a major limiting factor in the storage of produce, rendering it potentially unsafe for human consumption. In this study, Rhizopus oryzae was used to develop a concept of postharvest disease control by weakening the pathogen through induction of spore germination under starvation conditions. We isolated the sweetpotato active fractions (SPAFs) that induce spore germination and used them at a low dose to enhance spore weakening caused by starvation. Germination in SPAF at 1 mg/ml weakened the pathogen spores by delaying their ability to form colonies on rich media and by increasing their sensitivity to heat stress. The weakening effect was also supported by reduced metabolic activity, as detected by Alarmar Blue fluorescent dye assays. Spores incubated with SPAF at 1 mg/ml showed DNA fragmentation in some of their nuclei, as observed by TUNEL assay. In addition, these spores exhibited changes in ultrastructural morphology (i.e., shrinkage of germ tubes, nucleus deformation, and vacuole formation) which are hallmarks of programmed cell death. We suggest that induction of spore germination under starvation conditions increases their susceptibility to stress and, therefore, might be considered a new strategy for pathogen control.
Collapse
|
8
|
Chkhikvishvili I, Sanikidze T, Gogia N, Mchedlishvili T, Enukidze M, Machavariani M, Vinokur Y, Rodov V. Rosmarinic acid-rich extracts of summer savory (Satureja hortensis L.) protect Jurkat T cells against oxidative stress. Oxid Med Cell Longev 2013; 2013:456253. [PMID: 24349613 PMCID: PMC3857744 DOI: 10.1155/2013/456253] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2013] [Revised: 10/13/2013] [Accepted: 10/17/2013] [Indexed: 12/22/2022]
Abstract
Summer savory (Satureja hortensis L., Lamiaceae) is used in several regions of the world as a spice and folk medicine. Anti-inflammatory and cytoprotective effects of S. hortensis and of its rosmarinic acid-rich phenolic fraction have been demonstrated in animal trials. However, previous studies of rosmarinic acid in cell models have yielded controversial results. In this study, we investigated the effects of summer savory extracts on H2O2-challenged human lymphoblastoid Jurkat T cells. LC-MS analysis confirmed the presence of rosmarinic acid and flavonoids such as hesperidin and naringin in the phenolic fraction. Adding 25 or 50 µM of H2O2 to the cell culture caused oxidative stress, manifested as generation of superoxide and peroxyl radicals, reduced cell viability, G0/G1 arrest, and enhanced apoptosis. This stress was significantly alleviated by the ethanolic and aqueous extracts of S. hortensis and by the partially purified rosmarinic acid fraction. The application of an aqueous S. hortensis extract doubled the activity of catalase and superoxide dismutase in the cells. The production of IL-2 and IL-10 interleukins was stimulated by H2O2 and was further enhanced by the addition of the S. hortensis extract or rosmarinic acid fraction. The H2O2-challenged Jurkat cells may serve as a model for investigating cellular mechanisms of cytoprotective phytonutrient effects.
Collapse
Affiliation(s)
- Irakli Chkhikvishvili
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Ave. 0177, Tbilisi, Georgia
| | - Tamar Sanikidze
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Ave. 0177, Tbilisi, Georgia
| | - Nunu Gogia
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Ave. 0177, Tbilisi, Georgia
| | - Tamar Mchedlishvili
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Ave. 0177, Tbilisi, Georgia
| | - Maia Enukidze
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Ave. 0177, Tbilisi, Georgia
| | - Marine Machavariani
- Institute of Medical Biotechnology, Tbilisi State Medical University, 33 Vazha Pshavela Ave. 0177, Tbilisi, Georgia
| | - Yakov Vinokur
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
| | - Victor Rodov
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization, The Volcani Center, P.O. Box 6, 50250 Bet Dagan, Israel
| |
Collapse
|
9
|
Rodov V, Tietel Z, Vinokur Y, Horev B, Eshel D. Ultraviolet light stimulates flavonol accumulation in peeled onions and controls microorganisms on their surface. J Agric Food Chem 2010; 58:9071-6. [PMID: 23654235 DOI: 10.1021/jf1016016] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
The effects of ultraviolet (UV) light on flavonol content in peeled onions (Allium cepa L.) and on microbial survival on their surface were investigated. The content of phenolic compounds showed a gradient within the onion bulb, with the highest level in the external dry "skin" (tunic) and the lowest level in the center. Peeled bulbs were treated with UV light comprising the bands of UV-C (more than half of the total UV output), UV-A, and UV-B. The response to UV depended upon the position of the scales within the bulb. In the outer fleshy scales, the UV doses of 1.2-6 kJ m(-2) approximately doubled the accumulation of flavonols and the total antioxidant capacity. When mid-depth (5th from the outside) scales were exposed to UV, the lowest dose tested (1.2 kJ m(-2)) had no significant effect on flavonols accumulation, whereas the higher doses decreased their levels. The low-dose UV treatment reduced the count of Escherichia coli on artificially contaminated peeled onions by 1.5-3 logs and alleviated the decay of Penicillium-inoculated bulbs. The present study has demonstrated a potential of UV light for simultaneous decontamination of peeled onions and their enrichment in health-enhancing phytonutrients.
Collapse
Affiliation(s)
- Victor Rodov
- Department of Postharvest Science of Fresh Produce, Agricultural Research Organization (ARO), The Volcani Center, Post Office Box 6, Bet Dagan 50250, Israel.
| | | | | | | | | |
Collapse
|
10
|
Rodov V, Vinokur Y, Gogia N, Chkhikvishvili I. Hydrophilic and lipophilic antioxidant capacities of Georgian spices for meat and their possible health implications. Georgian Med News 2010:61-66. [PMID: 20234067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Georgian cuisine is famous for its spices for meat dishes. Many spices are rich in polyphenols and other antioxidants that reduce the formation of carcinogenic products during thermal processing of meat and counteract its adverse health effects. In spite of the relative popularity of meat dishes, Georgia is characterized by low incidence of the colorectal cancer. We suggest that this phenomenon may be at least partially related to antioxidant-rich spices and other products of plant origin copiously used in Georgian cuisine during preparation and consumption of meat. The present study characterized the content of phenolic compounds and antioxidant capacities of hydrophilic and lipophilic fractions from commercial samples of Georgian spices. Hydrophilic antioxidant capacity and total content of phenolic compounds in the spices were closely correlated. High values of the both parameters were found in kviteli kvavili (marigold, Tagetes patula L.), kondari (summer savory, Satureja hortensis L.) and kotsakhuri (barberry, Berberis vulgaris L.), as well as in kvliavi (caraway, Carum carvi L.) and tsiteli tsitsaka (red pepper, Capsicum annuum L.). High lipophilic activity was revealed in the red pepper and especially in kviteli kvavili (marigold). The analysis of the active principles of the spices and their mode of action is in progress.
Collapse
Affiliation(s)
- V Rodov
- Department of Postharvest Science of Fresh Produce, ARO - The Volcani Center, Bet Dagan, Israel
| | | | | | | |
Collapse
|
11
|
Friedman H, Rot I, Agami O, Vinokur Y, Rodov V, Reznick N, Umiel N, Dori I, Ganot L, Shmuel D, Matan E. EDIBLE FLOWERS: NEW CROPS WITH POTENTIAL HEALTH BENEFITS. ACTA ACUST UNITED AC 2007. [DOI: 10.17660/actahortic.2007.755.36] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
12
|
|
13
|
Vinokur Y, Rodov V. METHOD FOR DETERMINING TOTAL (HYDROPHILIC AND LIPOPHILIC) RADICAL-SCAVENGING ACTIVITY IN THE SAME SAMPLE OF FRESH PRODUCE. ACTA ACUST UNITED AC 2006. [DOI: 10.17660/actahortic.2006.709.6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|