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Sagar NA, Kumar Y, Singh R, Nickhil C, Kumar D, Sharma P, Om Pandey H, Bhoj S, Tarafdar A. Onion waste based-biorefinery for sustainable generation of value-added products. BIORESOURCE TECHNOLOGY 2022; 362:127870. [PMID: 36049716 DOI: 10.1016/j.biortech.2022.127870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/24/2022] [Accepted: 08/25/2022] [Indexed: 06/15/2023]
Abstract
Waste derived from the onion processing sector can be harnessed for the production of organic acids, polyphenols, polysachharides, biofuels and pigments. To sustainably utilize onion processing residues, different biorefinery strategies such as enzymatic hydrolysis, fermentation and hydrothermal carbonization have been widely investigated. This review discusses the recent advances in the biorefinery approaches used for valorization of onion processing waste followed by the production of different value-added products from diverse classes of onion waste. The review also highlights the current challenges faced by the bioprocessing sector for the utilization of onion processing waste and perspectives to tackle them.
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Affiliation(s)
- Narashans Alok Sagar
- Division of Livestock Products Technology, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122, India
| | - Yogesh Kumar
- Department of Food Technology, Faculty of Science and Humanities, SRM University, Sonipat, Haryana 131 029, India
| | - Ramveer Singh
- Department of Botany and Microbiology, Gurukula Kangri (Deemed to be University), Haridwar, Uttarakhand 249 404, India
| | - C Nickhil
- Department of Food Engineering and Technology, Tezpur University, Tezpur, Assam 784 028, India
| | - Deepak Kumar
- Division of Food Technology, Department of Nutrition and Dietetics, Manav Rachna International Institute of Research and Studies, Faridabad, Haryana 121 004, India
| | - Praveen Sharma
- Department of Botany, Rotary Institute of Management and Technology, Chandausi, Uttar Pradesh 244 412, India
| | - Hari Om Pandey
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122, India
| | - Suvarna Bhoj
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122, India
| | - Ayon Tarafdar
- Livestock Production and Management Section, ICAR-Indian Veterinary Research Institute, Izatnagar, Uttar Pradesh 243 122, India.
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2
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Chadorshabi S, Hallaj-Nezhadi S, Ghasempour Z. Red onion skin active ingredients, extraction and biological properties for functional food applications. Food Chem 2022; 386:132737. [PMID: 35509169 DOI: 10.1016/j.foodchem.2022.132737] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Revised: 02/28/2022] [Accepted: 03/16/2022] [Indexed: 11/25/2022]
Abstract
Onion is an important vegetable in the world and the second most important vegetable crop after tomato.Hence, the onion waste, such as onion skin, is produced in abundance causing environmental problems. Due to its bioactive compounds, especially phenolics and flavonoids, red onion skin can be used through appropriate methods for producing value-added products. These phytochemicals are proven to prevent oxidative stress and broad spectrum of microorganisms beside having diverse beneficial biological properties. Extraction step is the most critical processing in making phytonutrient available. Various approaches including conventional and non-conventional technologies applied for extracting different compounds from red onion wastes was summarized in this study. To evaluate the industrial application potential, the use of natural bioactives derived from red onion skin for elaboration of various food systems has been also investigated.
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Affiliation(s)
- Sara Chadorshabi
- Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Somayeh Hallaj-Nezhadi
- Drug Applied Research Center & Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zahra Ghasempour
- Department of Food Science and Technology, Faculty of Nutrition and Food Sciences, Nutrition Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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Speisky H, Shahidi F, Costa de Camargo A, Fuentes J. Revisiting the Oxidation of Flavonoids: Loss, Conservation or Enhancement of Their Antioxidant Properties. Antioxidants (Basel) 2022; 11:antiox11010133. [PMID: 35052636 PMCID: PMC8772813 DOI: 10.3390/antiox11010133] [Citation(s) in RCA: 64] [Impact Index Per Article: 32.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 02/06/2023] Open
Abstract
Flavonoids display a broad range of health-promoting bioactivities. Among these, their capacity to act as antioxidants has remained most prominent. The canonical reactive oxygen species (ROS)-scavenging mode of the antioxidant action of flavonoids relies on the high susceptibility of their phenolic moieties to undergo oxidation. As a consequence, upon reaction with ROS, the antioxidant capacity of flavonoids is severely compromised. Other phenol-compromising reactions, such as those involved in the biotransformation of flavonoids, can also markedly affect their antioxidant properties. In recent years, however, increasing evidence has indicated that, at least for some flavonoids, the oxidation of such residues can in fact markedly enhance their original antioxidant properties. In such apparent paradoxical cases, the antioxidant activity arises from the pro-oxidant and/or electrophilic character of some of their oxidation-derived metabolites and is exerted by activating the Nrf2–Keap1 pathway, which upregulates the cell’s endogenous antioxidant capacity, and/or, by preventing the activation of the pro-oxidant and pro-inflammatory NF-κB pathway. This review focuses on the effects that the oxidative and/or non-oxidative modification of the phenolic groups of flavonoids may have on the ability of the resulting metabolites to promote direct and/or indirect antioxidant actions. Considering the case of a metabolite resulting from the oxidation of quercetin, we offer a comprehensive description of the evidence that increasingly supports the concept that, in the case of certain flavonoids, the oxidation of phenolics emerges as a mechanism that markedly amplifies their original antioxidant properties. An overlooked topic of great phytomedicine potential is thus unraveled.
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Affiliation(s)
- Hernan Speisky
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile, Santiago 7810000, Chile;
- Correspondence: (H.S.); (J.F.); Tel.: +56-(2)-2978-1519 (H.S.)
| | - Fereidoon Shahidi
- Department of Biochemistry, Memorial University of Newfoundland, St. John’s, NL A1B 3X9, Canada;
| | - Adriano Costa de Camargo
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile, Santiago 7810000, Chile;
| | - Jocelyn Fuentes
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile, Santiago 7810000, Chile;
- Faculty of Medicine, School of Kinesiology, Universidad Finis Terrae, Santiago 7501015, Chile
- Correspondence: (H.S.); (J.F.); Tel.: +56-(2)-2978-1519 (H.S.)
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Quercetin Impact in Pancreatic Cancer: An Overview on Its Therapeutic Effects. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:4393266. [PMID: 34777687 PMCID: PMC8580629 DOI: 10.1155/2021/4393266] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/09/2021] [Accepted: 10/16/2021] [Indexed: 12/11/2022]
Abstract
Pancreatic cancer (PC) is a lethal malignancy cancer, and its mortality rates have been increasing worldwide. Diagnosis of this cancer is complicated, as it does not often present symptoms, and most patients present an irremediable tumor having a 5-year survival rate after diagnosis. Regarding treatment, many concerns have also been raised, as most tumors are found at advanced stages. At present, anticancer compounds-rich foods have been utilized to control PC. Among such bioactive molecules, flavonoid compounds have shown excellent anticancer abilities, such as quercetin, which has been used as an adjunctive or alternative drug to PC treatment by inhibitory or stimulatory biological mechanisms including autophagy, apoptosis, cell growth reduction or inhibition, EMT, oxidative stress, and enhancing sensitivity to chemotherapy agents. The recognition that this natural product has beneficial effects on cancer treatment has boosted the researchers' interest towards more extensive studies to use herbal medicine for anticancer purposes. In addition, due to the expensive cost and high rate of side effects of anticancer drugs, attempts have been made to use quercetin but also other flavonoids for preventing and treating PC. Based on related studies, it has been found that the quercetin compound has significant effect on cancerous cell lines as well as animal models. Therefore, it can be used as a supplementary drug to treat a variety of cancers, particularly pancreatic cancer. This review is aimed at discussing the therapeutic effects of quercetin by targeting the molecular signaling pathway and identifying antigrowth, cell proliferation, antioxidative stress, EMT, induction of apoptotic, and autophagic features.
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Benito-Román Ó, Blanco B, Sanz M, Beltrán S. Freeze-dried extract from onion (Allium cepa cv. Horcal) skin wastes: Extraction intensification and flavonoids identification. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2021.09.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Comparative analysis of volatile profiles and phenolic compounds of Four Southern Italian onion (Allium cepa L.) Landraces. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2021.103990] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Grzelak-Błaszczyk K, Milala J, Kołodziejczyk K, Sójka M, Czarnecki A, Kosmala M, Klewicki R, Fotschki B, Jurgoński A, Juśkiewicz J. Protocatechuic acid and quercetin glucosides in onions attenuate changes induced by high fat diet in rats. Food Funct 2021; 11:3585-3597. [PMID: 32285077 DOI: 10.1039/c9fo02633a] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Yellow onion waste from industrial peeling was used to obtain three pure preparations: protocatechuic acid (PA), quercetin diglycosides (QD) and quercetin monoglycosides (QM). PA contained 61% protocatechuic acid, QD contained 35% quercetin diglucosides, mainly quercetin-3,4'-diglucoside, and QM contained 41% monoglucosides, mainly quercetin-4'-glucoside. The highest antioxidant activity was shown by PA. The effects of preparations on the digestive functions of the gastrointestinal tract of rats as well as the biochemical parameters and antioxidant capacity of the blood in model research on Wistar rats sustained by a high-fat diet were assessed (5 groups per 8 animals). The results of the present experiment showed that different onion phenolic preparations differently modulated the enzymatic activity of faecal (P < 0.001) and caecal (P < 0.001) microbiota. For instance, the QD preparation but not QM efficiently reduced the faecal and caecal bacterial β-glucuronidase activity. Both protocatechuic acid and quercetin monoglycosides showed a beneficial effect by regulating blood lipids (reduction of TC (P < 0.001) and TG (P < 0.001), non-HDL increase in HDL (P < 0.001)), thereby lowering the risk factors for atherosclerotic lesions AI (P = 0.038) and AII (P = 0.013). In addition, onion phenols showed a strong antioxidant effect, however, with a different mechanism: protocatechuic acid via serum ACL (P = 0.033) increase and hepatic GSSG (P = 0.070) decrease, QM via ACW (P < 0.001) increase and hepatic TBARS (P = 0.002) decrease, and QD via serum ACW increase and hepatic GSSG decrease. It can be concluded that onion polyphenols with a lower molar weight, i.e. QM more preferably affect the blood lipid profile than QD. However QD more efficiently reduced the faecal and caecal bacterial β-glucuronidase activity.
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Affiliation(s)
- Katarzyna Grzelak-Błaszczyk
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Joanna Milala
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Krzysztof Kołodziejczyk
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Michał Sójka
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Andrzej Czarnecki
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Monika Kosmala
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Robert Klewicki
- Institute of Food Technology and Analysis, Lodz University of Technology, Stefanowskiego 4/10, 90-924 Lodz, Poland.
| | - Bartosz Fotschki
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Division of Food Science, Tuwima 10, 10-748 Olsztyn, Poland.
| | - Adam Jurgoński
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Division of Food Science, Tuwima 10, 10-748 Olsztyn, Poland.
| | - Jerzy Juśkiewicz
- Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences, Division of Food Science, Tuwima 10, 10-748 Olsztyn, Poland.
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Sato S, Mukai Y. Modulation of Chronic Inflammation by Quercetin: The Beneficial Effects on Obesity. J Inflamm Res 2020; 13:421-431. [PMID: 32848440 PMCID: PMC7425105 DOI: 10.2147/jir.s228361] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/22/2020] [Indexed: 12/18/2022] Open
Abstract
Obesity has become a major risk factor for the development of chronic diseases such as insulin resistance, type 2 diabetes mellitus, and cardiovascular disease. Moreover, obesity induces chronic inflammation in adipose tissue, liver, skeletal muscle, and the vascular system. Quercetin is the major representative of the flavonoid subclass of flavonols, which is ubiquitously contained within natural plants such as green tea, and vegetables, including onions and apples. Researchers have focused greater attention to the beneficial physiological roles of quercetin, which has anti-oxidative, anti-inflammatory, and anti-fibrotic effects on insulin resistance and atherosclerosis in obesity-related diseases. Also, the anti-inflammatory effects of quercetin on intestinal microbiota have been demonstrated in obesity. In addition, there is increasing evidence that quercetin is associated with epigenetic activities in cancer, and in maternal undernutrition during gestation and lactation. In this review, we focus on the chemical properties of quercetin, its dietary sources in obesity, and its anti-inflammatory effects on insulin resistance, atherosclerosis, intestinal microbiota, and maternal under-nutrition with epigenetic activity.
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Affiliation(s)
- Shin Sato
- Department of Nutrition, Aomori University of Health and Welfare, Aomori 030-8505, Japan
| | - Yuuka Mukai
- School of Nutrition and Dietetics, Faculty of Health and Social Work, Kanagawa University of Human Services, Kanagawa 238-8522, Japan
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Low nanomolar concentrations of a quercetin oxidation product, which naturally occurs in onion peel, protect cells against oxidative damage. Food Chem 2020; 314:126166. [PMID: 31972406 DOI: 10.1016/j.foodchem.2020.126166] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 11/07/2019] [Accepted: 01/05/2020] [Indexed: 12/30/2022]
Abstract
The occurrence of the quercetin oxidation metabolite 2-(3,4-dihydroxybenzoyl)-2,4,6-trihydroxy-3(2H)-benzofuranone (BZF), whose antioxidant potency is notably higher than the antioxidant potency of quercetin, was investigated in twenty quercetin-rich plant foods. BZF was identified (HPLC-DAD-ESI-MS/MS) only in the dry outer scales of onions and shallots. Aqueous extracts of onions (OAE) and shallots (SAE) were evaluated for their antioxidant and cytoprotective properties. OAE, whose potency did not differ from SAE, protected ROS-exposed Caco2 cells against oxidative (78%) and cellular (90%) damage at a 3 µg/L concentration (corresponding to 0.03 nM of BZF). After chromatographic resolution of OAE, the BZF peak accounted fully and exclusively for its antioxidant effect. The antioxidant effects of OAE and of a pure BZF were described by two perfectly overlapping curves whose concentration-dependence was within the 3 × 10-4 to 102 nM BZF range. Such unprecedented low concentrations place BZF-containing plants on the frontier of the search for novel sources of antioxidants.
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Pucciarini L, Ianni F, Petesse V, Pellati F, Brighenti V, Volpi C, Gargaro M, Natalini B, Clementi C, Sardella R. Onion ( Allium cepa L.) Skin: A Rich Resource of Biomolecules for the Sustainable Production of Colored Biofunctional Textiles. Molecules 2019; 24:molecules24030634. [PMID: 30754712 PMCID: PMC6384785 DOI: 10.3390/molecules24030634] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 02/02/2019] [Accepted: 02/04/2019] [Indexed: 11/16/2022] Open
Abstract
The aqueous extract of dry onion skin waste from the 'Dorata di Parma' cultivar was tested as a new source of biomolecules for the production of colored and biofunctional wool yarns, through environmentally friendly dyeing procedures. Specific attention was paid to the antioxidant and UV protection properties of the resulting textiles. On the basis of spectrophotometric and mass spectrometry analyses, the obtained deep red-brown color was assigned to quercetin and its glycoside derivatives. The Folin⁻Ciocalteu method revealed good phenol uptakes on the wool fiber (higher than 27% for the textile after the first dyeing cycle), with respect to the original total content estimated in the water extract (78.50 ± 2.49 mg equivalent gallic acid/g onion skin). The manufactured materials showed remarkable antioxidant activity and ability to protect human skin against lipid peroxidation following UV radiation: 7.65 ± 1.43 (FRAP assay) and 13.60 (ORAC assay) mg equivalent trolox/g textile; lipid peroxidation inhibition up to 89.37%. This photoprotective and antioxidant activity were therefore ascribed to the polyphenol pool contained in the outer dried gold skins of onion. It is worth noting that citofluorimetric analysis demonstrated that the aqueous extract does not have a significative influence on cell viability, neither is capable of inducing a proapoptotic effect.
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Affiliation(s)
- Lucia Pucciarini
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy.
| | - Federica Ianni
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy.
| | - Valentina Petesse
- Department of Chemistry Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
| | - Virginia Brighenti
- Department of Life Sciences, University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy.
| | - Claudia Volpi
- Department of Experimental Medicine, University of Perugia, P.le Severi, 06132 Perugia, Italy.
| | - Marco Gargaro
- Department of Experimental Medicine, University of Perugia, P.le Severi, 06132 Perugia, Italy.
| | - Benedetto Natalini
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy.
| | - Catia Clementi
- Department of Chemistry Biology and Biotechnology, University of Perugia, Via Elce di Sotto 8, 06123 Perugia, Italy.
| | - Roccaldo Sardella
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy.
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Nile A, Nile SH, Kim DH, Keum YS, Seok PG, Sharma K. Valorization of onion solid waste and their flavonols for assessment of cytotoxicity, enzyme inhibitory and antioxidant activities. Food Chem Toxicol 2018; 119:281-289. [PMID: 29496529 DOI: 10.1016/j.fct.2018.02.056] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2018] [Revised: 02/02/2018] [Accepted: 02/24/2018] [Indexed: 10/17/2022]
Abstract
Onion (Allium cepa L.) is rich with flavonols which perceived benefits to human health. Flavonols like quercetin and quercetin glycosides from onion solid waste (OSW) have been extracted and tested against enzymes of clinical importance in Alzheimer's disease and diabetes and be shown to have cytotoxic and antioxidant effects. A simple high-performance liquid chromatography-diode array detector method using a Zorbax Eclipse XDB C18 column was developed to separate quercetin-3, 4'-O-diglucoside, quercetin-4'-O-monoglucoside, and quercetin from OSW. These compounds were identified using infrared, ultra-violet, 1H, and 13C nuclear magnetic resonance spectroscopic techniques. The OSW solvent fractions and flavonols showed significant antioxidant activities using DPPH (1, 1-diphenyl-2-picrylhydrazyl), FRAP (ferric reducing antioxidant power), and ABTS (2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid) radical scavenging assays. The samples exhibited significant in vitro anti-cholinesterase activity with strong antidiabetic effects. OSW extracted with methanol and ethanol showed greater in vitro anti-cholinesterase and hypoglycemic effects than QDG, QMG, and Q possibly due to interactions between multiple compounds and/or complex multivariate interactions with other factors in OSW. In addition, cytotoxicity assays showed that OSW and QDG, QMG, and Q could inhibit the proliferation of selected cancer cell lines. Results indicate that OSW and flavonol glycosides are potential antioxidant, antidiabetic, anticancer, and sedative agents.
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Affiliation(s)
- Arti Nile
- Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul 05029, Republic of Korea
| | - Shivraj Hariram Nile
- Institute of Natural Science and Agriculture, Konkuk University, Seoul 05029, Republic of Korea; Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul 05029, Republic of Korea.
| | - Doo Hwan Kim
- Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul 05029, Republic of Korea
| | - Young Soo Keum
- Department of Crop Science, Sanghuh College of Life Sciences, Konkuk University, Seoul 05029, Republic of Korea
| | - Park Gyun Seok
- Department of Bioresources and Food Science, College of Life and Environmental Sciences, Konkuk University, Seoul 05029, Republic of Korea
| | - Kavita Sharma
- Department of Chemistry, Idaho State University, Pocatello, ID 83209, USA
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Fuentes J, Atala E, Pastene E, Carrasco-Pozo C, Speisky H. Quercetin Oxidation Paradoxically Enhances its Antioxidant and Cytoprotective Properties. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11002-11010. [PMID: 29179550 DOI: 10.1021/acs.jafc.7b05214] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Quercetin oxidation is generally believed to ultimately result in the loss of its antioxidant properties. To test this assertion, quercetin oxidation was induced, and after each of its major metabolites was identified and isolated by HPLC-DAD-ESI-MS/MS, the antioxidant (dichlorodihydrofluorescein oxidation-inhibiting) and cytoprotective (LDH leakage-preventing) properties were evaluated in Hs68 and Caco2 cells exposed to indomethacin. Compared to quercetin, the whole mixture of metabolites (QOX) displayed a 20-fold greater potency. After resolution of QOX into 12 major peaks, only one (peak 8), identified as 2,5,7,3',4'-pentahydroxy-3,4-flavandione or its 2-(3,4-dihydroxybenzoyl)-2,4,6-trihydroxy-3(2H)-benzofuranone tautomer, could account for the antioxidant and cytoprotective effects afforded QOX. Peak 8 exerted such effects at a 50 nM concentration, revealing a potency 200-fold higher than that of quercetin. The effects of peak 8 were seen regardless of whether it was added to the cells 40 min before or simultaneously with the oxygen-reactive species-generating agent, suggesting an intracellular ability to trigger early antioxidant responses. Thus, the present study is the first to reveal that in regard to the intracellular actions of quercetin, attention should be extended toward some of its oxidation products.
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Affiliation(s)
- Jocelyn Fuentes
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile , Santiago, Chile
| | - Elías Atala
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile , Santiago, Chile
| | - Edgar Pastene
- Laboratory of Pharmacognosy, Faculty of Pharmacy, University of Concepcion , Concepcion, Chile
| | - Catalina Carrasco-Pozo
- Nutrition Department, Faculty of Medicine, University of Chile , Santiago, Chile
- Discovery Biology, Griffith Institute for Drug Discovery, Griffith University , Nathan, Queensland 4111, Australia
| | - Hernán Speisky
- Laboratory of Antioxidants, Nutrition and Food Technology Institute, University of Chile , Santiago, Chile
- Pharmacology Department, Faculty of Chemical and Pharmaceutical Sciences, University of Chile , Santiago, Chile
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Sharma K, Mahato N, Nile SH, Lee ET, Lee YR. Economical and environmentally-friendly approaches for usage of onion (Allium cepa L.) waste. Food Funct 2016; 7:3354-69. [DOI: 10.1039/c6fo00251j] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
General anatomy and different layers in onion.
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Affiliation(s)
- Kavita Sharma
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan
- Republic of Korea
| | - Neelima Mahato
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan
- Republic of Korea
| | - Shivraj Hariram Nile
- Department of Bio-resources and Food Science
- College of Life and Environmental Sciences
- Konkuk University
- Seoul 143-701
- South Korea
| | - Eul Tal Lee
- Department of Bio-resources and Food Science
- College of Life and Environmental Sciences
- Konkuk University
- Seoul 143-701
- South Korea
| | - Yong Rok Lee
- School of Chemical Engineering
- Yeungnam University
- Gyeongsan
- Republic of Korea
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14
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Lin YC, Yu CP, Lin SP, Hsu PW, Chao PDL, Hou YC, Juang SH. Potential modulation on BCRP and MRP 4 by onion: in vivo and ex-vivo studies. J Funct Foods 2014. [DOI: 10.1016/j.jff.2014.03.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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15
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Influence of different solvents in extraction of phenolic compounds from vegetable residues and their evaluation as natural sources of antioxidants. Journal of Food Science and Technology 2012; 51:2568-75. [PMID: 25328197 DOI: 10.1007/s13197-012-0754-4] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/13/2011] [Accepted: 05/31/2012] [Indexed: 10/28/2022]
Abstract
Dried residues from four different vegetables, viz. pea pod (pp), cauliflower waste (CW), potato peel (PP) and tomato peel (TP) were extracted using four solvents i.e., hexane, chloroform, ethyl acetate and methanol. Among the four solvents, methanolic extracts showed the highest total phenolic content (TPC) for all the four vegetable residues. Methanolic extracts were evaluated for antioxidant activities using diphenylpicryl-hydrazyl (DPPH) and reducing power assay. Tomato peel extract showed highest phenolic content of 21.0 mg GAE/g-dw and 80.8 % DPPH free radical scavenging ability, whereas potato peel extract had a low phenolic content, and it also showed the least antioxidant activity among the residues examined in this study. Total phenolic content and DPPH free radical scavenging activity in pea pods and cauliflower waste were 13.6 mg GAE/g-dw and 72 % and 9.2 mg GAE/g-dw and 70.7 %, respectively. The coefficient of determination (r(2)) for correlation between TPC and reducing power, DPPH and TPC, DPPH and reducing power for all extracts was 0.85, 0.91and 0.87, respectively, suggesting an important role of phenolics in imparting antioxidant ability. Extracts from vegetables residues therefore represent a significant source of phenolic antioxidants for use as nutraceuticals or biopreservatives.
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