1
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Bermúdez-Oria A, Rubio-Senent F, Rodríguez-Gutiérrez G, Fernández-Bolaños J. Antioxidant activity and inhibitory effects on angiotensin I-converting enzyme and α-glucosidase of trans-p-coumaroyl-secologanoside (comselogoside) and its inclusion complex with β-cyclodextrin. Bioaccessibility during simulated in vitro gastrointestinal digestion. Food Chem 2024; 460:140724. [PMID: 39121769 DOI: 10.1016/j.foodchem.2024.140724] [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: 05/29/2024] [Revised: 07/16/2024] [Accepted: 07/30/2024] [Indexed: 08/12/2024]
Abstract
This study explored the impact of complexing comselogoside (COM) with β-cyclodextrin (β-CD) on antioxidant capacity and investigated its in vitro inhibitory effects against α-glucosidase and angiotensin I-converting enzyme (ACE). The COM: β-CD complex in three molar ratios (1:2, 1:1, and 2:1) showed significantly higher antioxidant activity compared to free COM, assessed by DPPH and ferric reducing power assays. COM exhibited weak to moderate α-glucosidase inhibition (IC50 1221 μM) and notable ACE inhibition (IC50 119.4 μM). Encapsulation improved ACE inhibition notably for the 1:2 and 2:1 M ratios. The cleavage of secoiridoid moiety of COM by β-glucosidase further enhanced ACE inhibition from IC50 of 63.91 to 41.75 μg/mL in the hydrolysed mixture. In vitro gastrointestinal digestion revealed 34-40% bioaccessibility of COM and its β-CD complex. This study demonstrates the potential of encapsulated COM as a functional food or supplement for preventing and treating diabetes, hypertension, and oxidative stress-related diseases.
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Affiliation(s)
- Alejandra Bermúdez-Oria
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain
| | - Fátima Rubio-Senent
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain
| | - Guillermo Rodríguez-Gutiérrez
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain
| | - Juan Fernández-Bolaños
- Department of Food Phytochemistry, Instituto de la Grasa (Spanish National Research Council, CSIC), Ctra. de Utrera km. 1, Pablo de Olavide University Campus, Building 46, 41013 Seville, Spain.
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2
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Custureri IMG, Loizzo MR, Sicari V, Pino R, Tundis R, Soria AC, Giuffrè AM. Evaluation of the Shelf Life of Myristica- fragrans Powder-Flavored Oils Obtained through the Application of Two Processes: Infusion and Co-Pressing Technology. Molecules 2024; 29:3588. [PMID: 39124992 PMCID: PMC11313693 DOI: 10.3390/molecules29153588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2024] [Revised: 07/26/2024] [Accepted: 07/27/2024] [Indexed: 08/12/2024] Open
Abstract
This work aimed to evaluate the impact of enrichment processing on the quality parameters, bioactivity and sensorial aspects of Myristica fragrans (mace)-flavored olive oil storage for one year. The mace powder was added to extra virgin olive oil through two different processes: immediately after crushing the olives by mixing mace (1% weight/weight (w/w)) with the olive paste (MAVOO-M) and by adding mace to extra virgin olive oil (C) (2% w/w) (MAVOO-I). A multi-analytical approach was applied to measure the main qualitative indexes, such as the free acidity, peroxide value and ultraviolet parameters. The total phenolic and carotenoid contents (TPC and TCC, respectively) and α-tocopherol were also evaluated, as well as the sensory attributes. The radical scavenging potential was estimated by using two different in vitro tests, namely, 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH). A significant increase in the free acidity parameter was found in all the flavored oils, and particularly in the MAVOO-M (1.27% oleic acid); at the same time, this oil was the sample with the lowest peroxide value (i.e., 9.68 meqO2/kg) after 360 days of storage. At the end of the storage, an increase in L* values was found in both the MAVOO-M and -I vs. the C (43.88 and 43.02, respectively, vs. 42.62). The TCC was strongly influenced by the addition of mace, especially when the infusion process was used. In fact, after one year of storage, the TCC in the MAVOO-I resulted in ~34.7% more than the MAVOO-M. A promising DPPH radical scavenging activity was observed independently by the applied aromatization process, with IC50 values of 19.77 and 17.80 μg/mL for the MAVOO-M and MAVOO-I, respectively. However, this activity decreased during storage, and a similar trend was observed using the ABTS test. In conclusion the infusion as enrichment methodology led to more promising results in terms of functionality compared with the co-mixing one.
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Affiliation(s)
- Irene Maria Grazia Custureri
- Department of Agraria, University “Mediterranea” of Reggio Calabria, Salita Melissari, Località Feo di Vito, 89124 Reggio Calabria, Italy; (I.M.G.C.); (A.M.G.)
| | - Monica Rosa Loizzo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Polifunzionale Building, via P. Bucci, 87036 Rende, Italy; (R.P.); (R.T.)
| | - Vincenzo Sicari
- Department of Agraria, University “Mediterranea” of Reggio Calabria, Salita Melissari, Località Feo di Vito, 89124 Reggio Calabria, Italy; (I.M.G.C.); (A.M.G.)
| | - Roberta Pino
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Polifunzionale Building, via P. Bucci, 87036 Rende, Italy; (R.P.); (R.T.)
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, Polifunzionale Building, via P. Bucci, 87036 Rende, Italy; (R.P.); (R.T.)
| | - Ana Cristina Soria
- Institute of General Organic Chemistry (IQOG-CSIC), Juan de la Cierva 3, 28006 Madrid, Spain;
| | - Angelo Maria Giuffrè
- Department of Agraria, University “Mediterranea” of Reggio Calabria, Salita Melissari, Località Feo di Vito, 89124 Reggio Calabria, Italy; (I.M.G.C.); (A.M.G.)
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3
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Tsimihodimos V, Psoma O. Extra Virgin Olive Oil and Metabolic Diseases. Int J Mol Sci 2024; 25:8117. [PMID: 39125686 PMCID: PMC11312192 DOI: 10.3390/ijms25158117] [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: 06/27/2024] [Revised: 07/19/2024] [Accepted: 07/23/2024] [Indexed: 08/12/2024] Open
Abstract
Over the last few decades, metabolic syndrome coexisting with cardiovascular disease has evolved into a pandemic, making the need for more food-oriented therapeutic approaches and a redefinition of lifestyle imperative, with the Mediterranean diet being the linchpin of this effort. Extra virgin olive oil (EVOO), the key pillar of the Mediterranean diet and one of the most notorious edible oils worldwide, owes its popularity not only to its characteristic aromas and taste but mainly to a series of beneficial health attributes including anti-diabetic, hypolipidemic, anti-hypertensive and anti-obesity actions. In this narrative review, we aimed to illustrate and enlighten EVOO's metabolic properties through a pathogenetic approach, investigating its potential role in metabolic and cardiovascular health.
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4
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Zhu B, Xia M, Ding Z, Rong X, Mei X. Enhancing physical and chemical stability of hygroscopic hydroxytyrosol by cocrystal formation. Int J Pharm 2023; 646:123470. [PMID: 37793465 DOI: 10.1016/j.ijpharm.2023.123470] [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: 06/30/2023] [Revised: 09/24/2023] [Accepted: 09/29/2023] [Indexed: 10/06/2023]
Abstract
Hydroxytyrosol (HT) is a natural phenolic compound with potent antioxidant activity extracted from olive trees. It is generally a slightly hydrated viscous liquid at ambient conditions, and it is highly susceptible to oxygen due to the presence of catechol moiety. Although encapsulation technique provides HT in powder form, it does not improve its chemical stability. Herein, we propose an efficient solution to the high hygroscopicity and poor stability of HT. Four cocrystals were first reported, and their intermolecular interactions were analyzed in detail. After cocrystallization, the melting point is increased and the hygroscopicity is significantly decreased. HT cocrystals are thus solid at room temperature. Moreover, hydroxytyrosol cocrystals with betaine (HT-BET) and nicotinamide (HT-NIC) demonstrate superior chemical stability than pure HT, olive extract, and HT encapsulation material. Therefore, cocrystallization can be considered as a promising approach to overcome the application obstacles of HT.
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Affiliation(s)
- Bingqing Zhu
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Mengyuan Xia
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Zhenfeng Ding
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China
| | - Xiaoyi Rong
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 555 Zuchongzhi Road, Shanghai 201203, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China.
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5
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Costa M, Costa V, Lopes M, Paiva-Martins F. A biochemical perspective on the fate of virgin olive oil phenolic compounds in vivo. Crit Rev Food Sci Nutr 2022; 64:1403-1428. [PMID: 36094444 DOI: 10.1080/10408398.2022.2116558] [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] [Indexed: 11/03/2022]
Abstract
The chemistry of the phenolic compounds found in virgin olive oil (VOO) is very complex due, not only to the different classes of polyphenols that can be found in it, but, above all, due to the existence of a very specific phenol class found only in oleaceae plants: the secoiridoids. Searching in the Scopus data base the keywords flavonoid, phenolic acid, lignin and secoiridoid, we can find a number of 148174, 79435, 11326 and 1392 research articles respectively, showing how little is devote to the latter class of compounds. Moreover, in contrast with other classes, that include only phenolic compounds, secoiridoids may include phenolic and non-phenolic compounds, being the articles concerning phenolic secoiridoids much less than the half of the abovementioned articles. Therefore, it is important to clarify the structures of these compounds and their chemistry, as this knowledge will help understand their bioactivity and metabolism studies, usually performed by researchers with a more health science's related background. In this review, all the structures found in many research articles concerning VOO phenolic compounds chemistry and metabolism was gathered, with a special attention devoted to the secoiridoids, the main phenolic compound class found in olives, VOO and olive leaf.
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Affiliation(s)
- Marlene Costa
- REQUIMTE-LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Vânia Costa
- REQUIMTE-LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Margarida Lopes
- REQUIMTE-LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
| | - Fátima Paiva-Martins
- REQUIMTE-LAQV, Departamento de Química e Bioquímica, Faculdade de Ciências, Universidade do Porto, Porto, Portugal
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6
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Singular Olive Oils from a Recently Discovered Spanish North-Western Cultivar: An Exhaustive 3-Year Study of Their Chemical Composition and In-Vitro Antidiabetic Potential. Antioxidants (Basel) 2022; 11:antiox11071233. [PMID: 35883723 PMCID: PMC9311737 DOI: 10.3390/antiox11071233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/17/2022] [Accepted: 06/20/2022] [Indexed: 12/10/2022] Open
Abstract
In this work, the quality and physicochemical parameters, phenolic composition, and antidiabetic potential of olive oils obtained from olives belonging to centenarian olive trees of the so-called ‘Mansa de Figueiredo’ cultivar were evaluated during three consecutive crop seasons (2017–2019). The oils produced during the three crop years were classified as extra virgin based on the quality-related indices, sensory analysis, and the genuineness-related parameters. In addition, LC-ESI-TOF MS was used to get a comprehensive characterisation of the phenolic fraction while LC-ESI-IT MS was applied for quantitation purposes. The content of phenolic compounds (ranging from 1837 to 2434 mg/kg) was significantly affected by the harvest year due to the environmental conditions and ripening index. Furthermore, although significant differences in the inhibitory effects against the α-glucosidase enzyme for the EVOOs extracted throughout the three successive years were detected, all the studied EVOOs exhibited a stronger inhibitor effect than that found for acarbose.
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7
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Reboredo-Rodríguez P, Olmo-García L, Figueiredo-González M, González-Barreiro C, Carrasco-Pancorbo A, Cancho-Grande B. Application of the INFOGEST Standardized Method to Assess the Digestive Stability and Bioaccessibility of Phenolic Compounds from Galician Extra-Virgin Olive Oil. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:11592-11605. [PMID: 34550684 PMCID: PMC8929668 DOI: 10.1021/acs.jafc.1c04592] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The INFOGEST standardized method was applied to assess the potential bioaccessibility and bioaccessibility of the phenolic compounds from a Galician extra-virgin olive oil (EVOO). The in vitro digestion model involves three steps and generates two fractions after each one: an aqueous fraction (namely, water phase (Wp)) and an oily fraction (namely, oily phase (Op)). The results showed that secoiridoids were the most abundant family in the Galician EVOO polar fraction, representing 98% of the total phenolic compounds. After oral digestion, phenolic acids and simple phenols were mainly detected in Wp, while lignans and flavonoids were mostly found in Op. After gastric digestion, extensive hydrolysis of secoiridoids was observed to generate free tyrosol, hydroxytyrosol, and hydroxytyrosol acetate. The instability of secoiridoids after intestinal digestion was again responsible for the release of simple phenols, which were mainly recovered in Wp together with flavonoids. In contrast, lignans were stable to duodenal conditions and remained in Op.
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Affiliation(s)
- P. Reboredo-Rodríguez
- Food
and Health Omics, Department of Analytical and Food Chemistry, Faculty
of Science, University of Vigo, 32004 Ourense, Spain
| | - L. Olmo-García
- Department
of Analytical Chemistry, Faculty of Science, University of Granada, Ave. Fuentenueva s/n, 18071 Granada, Spain
| | - M. Figueiredo-González
- Food
and Health Omics, Department of Analytical and Food Chemistry, Faculty
of Science, University of Vigo, 32004 Ourense, Spain
| | - C. González-Barreiro
- Food
and Health Omics, Department of Analytical and Food Chemistry, Faculty
of Science, University of Vigo, 32004 Ourense, Spain
| | - A. Carrasco-Pancorbo
- Department
of Analytical Chemistry, Faculty of Science, University of Granada, Ave. Fuentenueva s/n, 18071 Granada, Spain
| | - B. Cancho-Grande
- Food
and Health Omics, Department of Analytical and Food Chemistry, Faculty
of Science, University of Vigo, 32004 Ourense, Spain
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8
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Loizzo MR, Bonesi M, Falco T, Leporini M, Pagliuso M, Sicari V, Tundis R. Carolea olive oil enriched with an infusion of
Capsicuum annuum
and
C. chinense
dried pepper powders to produce an added value flavoured olive oils. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15776] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Monica Rosa Loizzo
- Department of Pharmacy Health Science and Nutrition University of Calabria Arcavacata di Rende Italy
| | - Marco Bonesi
- Department of Pharmacy Health Science and Nutrition University of Calabria Arcavacata di Rende Italy
| | - Tiziana Falco
- Department of Pharmacy Health Science and Nutrition University of Calabria Arcavacata di Rende Italy
| | - Mariarosaria Leporini
- Department of Pharmacy Health Science and Nutrition University of Calabria Arcavacata di Rende Italy
| | - Mariateresa Pagliuso
- UOS Igiene Alimenti e Nutrizione Azienda Sanitaria Provinciale di Cosenza Cosenza Italy
| | - Vincenzo Sicari
- Department of AGRARIA Mediterranean University of Reggio Calabria Reggio Calabria Italy
| | - Rosa Tundis
- Department of Pharmacy Health Science and Nutrition University of Calabria Arcavacata di Rende Italy
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9
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Reboredo-Rodríguez P, Olmo-García L, Figueiredo-González M, González-Barreiro C, Carrasco-Pancorbo A, Cancho-Grande B. Effect of olive ripening degree on the antidiabetic potential of biophenols-rich extracts of Brava Gallega virgin olive oils. Food Res Int 2020; 137:109427. [PMID: 33233109 DOI: 10.1016/j.foodres.2020.109427] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 05/28/2020] [Accepted: 06/06/2020] [Indexed: 11/16/2022]
Abstract
The diet management is imperative to anticipate risk factors that favour the development of diseases; indeed, the intake of virgin olive oil could be an alternative natural source of α-glucosidase enzyme inhibitors, which delay the digestion rate of carbohydrates. Consequently, the impact of diabetes mellitus (DM) could be diminished. Extra Virgin Olive Oils (EVOO) were elaborated from Galician autochthonous variety 'Brava Gallega' with olives selected at three different degree of ripeness (ripening index, RI: 1.4, 3.0, 5.5) in order to assess the effect of maturation on overall chemical composition, sensory quality, and enzyme inhibition. The phenolic profile of the EVOOs determined by LC-ESI-IT-MS exhibited quantitative differences as ripening advanced; for example oleocanthal, tyrosol, luteolin and apigenin concentrations were higher in the overripe olive oil (RI 5.5). Anyway, the phenolic extracts (from every tested RI) were more active than acarbose. In particular, those obtained from the most mature olives displayed the most powerful inhibitory activity (IC50 value of 143 µg of dry extract/mL). In addition, the significant effect of these compounds (i.e. luteolin, apigenin, tyrosol and oleocanthal) on the inhibitory activity of the olive oil extracts was demonstrated. Our results suggest that, regardless of RI, the inhibitory activity of 'Brava Gallega' olive oils could represent a valuable strategy for reinforcing the health claim of olive oil for phenolic compounds.
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Affiliation(s)
- P Reboredo-Rodríguez
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, CITACA, Faculty of Science, University of Vigo - Ourense Campus, E32004 Ourense, Spain
| | - L Olmo-García
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Ave. Fuentenueva s/n, 18071 Granada, Spain.
| | - M Figueiredo-González
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, CITACA, Faculty of Science, University of Vigo - Ourense Campus, E32004 Ourense, Spain.
| | - C González-Barreiro
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, CITACA, Faculty of Science, University of Vigo - Ourense Campus, E32004 Ourense, Spain
| | - A Carrasco-Pancorbo
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Ave. Fuentenueva s/n, 18071 Granada, Spain
| | - B Cancho-Grande
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, CITACA, Faculty of Science, University of Vigo - Ourense Campus, E32004 Ourense, Spain
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10
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Mwakalukwa R, Amen Y, Nagata M, Shimizu K. Postprandial Hyperglycemia Lowering Effect of the Isolated Compounds from Olive Mill Wastes - An Inhibitory Activity and Kinetics Studies on α-Glucosidase and α-Amylase Enzymes. ACS OMEGA 2020; 5:20070-20079. [PMID: 32832761 PMCID: PMC7439263 DOI: 10.1021/acsomega.0c01622] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Accepted: 06/22/2020] [Indexed: 05/03/2023]
Abstract
In the present study, we isolated seven compounds from olive mill wastes (OMW), one of them being novel, and investigated their antidiabetic potential through inhibition of α-glucosidase and α-amylase enzymes. To assist the possible characterization of the mechanisms involved, we analyzed the inhibitory kinetics of the active compounds. Oleanolic acid 1, maslinic acid 2, 1-acetoxypinoresinol 3, and luteolin-7-O-β-d-glucoside 6 exhibited stronger inhibitory activity against both enzymes, with IC50 values less than or close to that of acarbose. Other compounds pinoresinol and hydroxytyrosol-containing compounds (hydroxytyrosol acetate 4, hydroxytyrosol 7, and the novel one, 3,4-dihydroxyphenyl-2-methoxyethanol 5) showed weak activity against both enzymes (IC50 > 500 μM). Our findings show that, first, the esterification of C-1 of the furofuran ring is the key feature for the stronger activity of 1-acetoxypinoresinol 3 against both enzymes (IC50 = 13.9 and 313 μM for α-amylase and α-glucosidase, respectively), as compared to pinoresinol; second, the oleanane skeletons of the triterpenes (1 and 2) are optimum for the α-glucosidase and α-amylase inhibitory activities, while the hydroxytyrosol moiety may be responsible for the weak activities of 4, 5, and 7. Additionally, kinetics analysis of 1, 6, and 3 revealed that they inhibit α-glucosidase in mixed-type, noncompetitive, and uncompetitive mechanisms, respectively. We confirmed their mechanisms by measuring their affinity for the enzyme (K i), and they all (1, 6, and 3) had a higher affinity for the enzyme, K i > 1. This work adds more value to OMW for further studies as a potential source of lead antidiabetic compounds for the prevention and/or treatment of type 2 diabetes.
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Affiliation(s)
- Rogers Mwakalukwa
- Department of Agro-environmental
Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0935, Japan
- Department of Pharmacognosy, School of
Pharmacy, Muhimbili University of Health
and Allied Sciences, Dar es Salaam 00000, Tanzania
| | - Yhiya Amen
- Department of Agro-environmental
Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0935, Japan
- Department
of Pharmacognosy, Faculty of
Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Maki Nagata
- Department of Agro-environmental
Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0935, Japan
| | - Kuniyoshi Shimizu
- Department of Agro-environmental
Sciences, Graduate School of Bioresource and Bioenvironmental Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0935, Japan
- . Tel: +81-92-802-4673. Fax: +81-92-802-4673
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11
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Rodríguez-López P, Lozano-Sanchez J, Borrás-Linares I, Emanuelli T, Menéndez JA, Segura-Carretero A. Structure-Biological Activity Relationships of Extra-Virgin Olive Oil Phenolic Compounds: Health Properties and Bioavailability. Antioxidants (Basel) 2020; 9:E685. [PMID: 32752213 PMCID: PMC7464770 DOI: 10.3390/antiox9080685] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/28/2020] [Accepted: 07/28/2020] [Indexed: 02/07/2023] Open
Abstract
Extra-virgin olive oil is regarded as functional food since epidemiological studies and multidisciplinary research have reported convincing evidence that its intake affects beneficially one or more target functions in the body, improves health, and reduces the risk of disease. Its health properties have been related to the major and minor fractions of extra-virgin olive oil. Among olive oil chemical composition, the phenolic fraction has received considerable attention due to its bioactivity in different chronic diseases. The bioactivity of the phenolic compounds could be related to different properties such as antioxidant and anti-inflammatory, although the molecular mechanism of these compounds in relation to many diseases could have different cellular targets. The aim of this review is focused on the extra-virgin olive oil phenolic fraction with particular emphasis on (a) biosynthesis, chemical structure, and influence factors on the final extra-virgin olive oil phenolic composition; (b) structure-antioxidant activity relationships and other molecular mechanisms in relation to many diseases; (c) bioavailability and controlled delivery strategies; (d) alternative sources of olive biophenols. To achieve this goal, a comprehensive review was developed, with particular emphasis on in vitro and in vivo assays as well as clinical trials. This report provides an overview of extra-virgin olive oil phenolic compounds as a tool for functional food, nutraceutical, and pharmaceutical applications.
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Affiliation(s)
- Paloma Rodríguez-López
- Department of Food Science and Nutrition, University of Granada, Campus Universitario s/n, 18071 Granada, Spain;
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, Edificio BioRegión, 18016 Granada, Spain; (I.B.-L.); (A.S.-C.)
| | - Jesús Lozano-Sanchez
- Department of Food Science and Nutrition, University of Granada, Campus Universitario s/n, 18071 Granada, Spain;
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, Edificio BioRegión, 18016 Granada, Spain; (I.B.-L.); (A.S.-C.)
| | - Isabel Borrás-Linares
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, Edificio BioRegión, 18016 Granada, Spain; (I.B.-L.); (A.S.-C.)
| | - Tatiana Emanuelli
- Department of Food Technology and Science, Center of Rural Sciences, Federal University of Santa Maria, Camobi 97105-900, Santa Maria, RS, Brazil;
| | - Javier A. Menéndez
- Catalan Institute of Oncology ProCURE (Program Against Cancer Therapeutic Resistance), Ctra. França s/n, Hospital Dr. Josep Trueta de Girona, 17007 Girona, Catalonia, Spain;
| | - Antonio Segura-Carretero
- Research and Development Functional Food Centre (CIDAF), Health Science Technological Park, Avenida del Conocimiento 37, Edificio BioRegión, 18016 Granada, Spain; (I.B.-L.); (A.S.-C.)
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, 18071 Granada, Spain
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12
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Characterization of phenolic and triacylglycerol compounds in the olive oil by-product pâté and assay of its antioxidant and enzyme inhibition activity. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109225] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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13
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Franconi F, Campesi I, Romani A. Is Extra Virgin Olive Oil an Ally for Women's and Men's Cardiovascular Health? Cardiovasc Ther 2020; 2020:6719301. [PMID: 32454893 PMCID: PMC7212338 DOI: 10.1155/2020/6719301] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 03/04/2020] [Indexed: 02/06/2023] Open
Abstract
Noncommunicable diseases are long-lasting and slowly progressive and are the leading causes of death and disability. They include cardiovascular diseases (CVD) and diabetes mellitus (DM) that are rising worldwide, with CVD being the leading cause of death in developed countries. Thus, there is a need to find new preventive and therapeutic approaches. Polyphenols seem to have cardioprotective properties; among them, polyphenols and/or minor polar compounds of extra virgin olive oil (EVOO) are attracting special interest. In consideration of numerous sex differences present in CVD and DM, in this narrative review, we applied "gender glasses." Globally, it emerges that olive oil and its derivatives exert some anti-inflammatory and antioxidant effects, modulate glucose metabolism, and ameliorate endothelial dysfunction. However, as in prescription drugs, also in this case there is an important gender bias because the majority of the preclinical studies are performed on male animals, and the sex of donors of cells is not often known; thus a sex/gender bias characterizes preclinical research. There are numerous clinical studies that seem to suggest the benefits of EVOO and its derivatives in CVD; however, these studies have numerous limitations, presenting also a considerable heterogeneity across the interventions. Among limitations, one of the most relevant in the era of personalized medicine, is the non-attention versus women that are few and, also when they are enrolled, sex analysis is lacking. Therefore, in our opinion, it is time to perform more long, extensive and lessheterogeneous trials enrolling both women and men.
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Affiliation(s)
- Flavia Franconi
- Laboratorio Nazionale sulla Farmacologia e Medicina di Genere, Istituto Nazionale Biostrutture Biosistemi, 07100 Sassari, Italy
| | - Ilaria Campesi
- Laboratorio Nazionale sulla Farmacologia e Medicina di Genere, Istituto Nazionale Biostrutture Biosistemi, 07100 Sassari, Italy
- Dipartimento di Scienze Biomediche, Università Degli Studi di Sassari, 07100 Sassari, Italy
| | - Annalisa Romani
- Laboratorio PHYTOLAB (Pharmaceutical, Cosmetic, Food Supplement Technology and Analysis), DiSIA Università Degli Studi di Firenze, 50019 Florence, Italy
- Laboratorio di Qualità Delle Merci e Affidabilità di Prodotto, Università Degli Studi di Firenze, 59100 Florence, Italy
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Bagetta D, Maruca A, Lupia A, Mesiti F, Catalano R, Romeo I, Moraca F, Ambrosio FA, Costa G, Artese A, Ortuso F, Alcaro S, Rocca R. Mediterranean products as promising source of multi-target agents in the treatment of metabolic syndrome. Eur J Med Chem 2019; 186:111903. [PMID: 31787360 DOI: 10.1016/j.ejmech.2019.111903] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2019] [Revised: 10/02/2019] [Accepted: 11/18/2019] [Indexed: 01/19/2023]
Abstract
Alteration of nutritional habits play an essential role on the risk of developing Metabolic Syndrome (MetS). Several epidemiological studies have shown that assuming diets rich of foods included in the Mediterranean diet (MetDiet) pattern like, such as olive oil, nuts, fruit, fiber, vegetables, wine and grain cereals has protective effects on the different risk factors characterizing the MetS. The beneficial effects of the MetDiet in the MetS are mainly due to the antioxidant and anti-inflammatory properties of the most abundant phytochemical components of such foods as polyphenols like resveratrol and oleuropein, allyl sulfides, ellagic acid, mono- and poly-unsaturated fatty acids (MUFA and PUFA), tocopherols and flavonoids like quercetin, which have shown positive results in the prevention of cardiovascular diseases (CVDs), with related risk factors, like hypertension, hypercholesterolemia and obesity. In this review, we highlighted the multi-target activities of the bioactive components contained in some foods typical of the Mediterranean area like olive oil, onion, liquorice, rosemary, oregano, hazelnut, pistachio, "Melannurca" apple, red wine, hot pepper, Citrus sp. fruits, saffron and garlic, with particular focus on their impact on health outcomes in relation to MetS main key factors, such as insulin resistance (IR) and type 2 diabetes mellitus (T2DM), endothelial dysfunctions, inflammatory response, oxidative stress and dyslipidaemic and hypercholesterolemic effects.
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Affiliation(s)
- Donatella Bagetta
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Annalisa Maruca
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Antonio Lupia
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Francesco Mesiti
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Raffaella Catalano
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Isabella Romeo
- Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Department of Chemistry and Chemical Technologies, University of Calabria, via Pietro Bucci, 87036, Arcavacata di Rende, Italy
| | - Federica Moraca
- Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Department of Pharmacy, University of Naples "Federico II", via D. Montesano 49, 80131, Naples, Italy.
| | - Francesca Alessandra Ambrosio
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy.
| | - Giosuè Costa
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Anna Artese
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Francesco Ortuso
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Stefano Alcaro
- Dipartimento di Scienze della Salute, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
| | - Roberta Rocca
- Net4Science srl, Università "Magna Græcia", Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy; Department of Experimental and Clinical Medicine, "Magna Græcia" University, Campus Salvatore Venuta, Viale Europa, 88100, Catanzaro, Italy
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15
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Kerimi A, Nyambe-Silavwe H, Pyner A, Oladele E, Gauer JS, Stevens Y, Williamson G. Nutritional implications of olives and sugar: attenuation of post-prandial glucose spikes in healthy volunteers by inhibition of sucrose hydrolysis and glucose transport by oleuropein. Eur J Nutr 2019; 58:1315-1330. [PMID: 29524000 PMCID: PMC6499752 DOI: 10.1007/s00394-018-1662-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Accepted: 03/05/2018] [Indexed: 11/28/2022]
Abstract
PURPOSE The secoiridoid oleuropein, as found in olives and olive leaves, modulates some biomarkers of diabetes risk in vivo. A possible mechanism may be to attenuate sugar digestion and absorption. METHODS We explored the potential of oleuropein, prepared from olive leaves in a water soluble form (OLE), to inhibit digestive enzymes (α-amylase, maltase, sucrase), and lower [14C(U)]-glucose uptake in Xenopus oocytes expressing human GLUT2 and [14C(U)]-glucose transport across differentiated Caco-2 cell monolayers. We conducted 7 separate crossover, controlled, randomised intervention studies on healthy volunteers (double-blinded and placebo-controlled for the OLE supplement) to assess the effect of OLE on post-prandial blood glucose after consumption of bread, glucose or sucrose. RESULTS OLE inhibited intestinal maltase, human sucrase, glucose transport across Caco-2 monolayers, and uptake of glucose by GLUT2 in Xenopus oocytes, but was a weak inhibitor of human α-amylase. OLE, in capsules, in solution or as naturally present in olives, did not affect post-prandial glucose derived from bread, while OLE in solution attenuated post-prandial blood glucose after consumption of 25 g sucrose, but had no effect when consumed with 50 g of sucrose or glucose. CONCLUSION The combined inhibition of sucrase activity and of glucose transport observed in vitro was sufficient to modify digestion of low doses of sucrose in healthy volunteers. In comparison, the weak inhibition of α-amylase by OLE was not enough to modify blood sugar when consumed with a starch-rich food, suggesting that a threshold potency is required for inhibition of digestive enzymes in order to translate into in vivo effects.
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Affiliation(s)
- Asimina Kerimi
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Alison Pyner
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Ebun Oladele
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Julia S Gauer
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Yala Stevens
- BioActor, Oxfordlaan 70, 6229 EV, Maastricht, The Netherlands
| | - Gary Williamson
- School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK.
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16
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Jayathilake C, Visvanathan R, Deen A, Bangamuwage R, Jayawardana BC, Nammi S, Liyanage R. Cowpea: an overview on its nutritional facts and health benefits. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:4793-4806. [PMID: 29656381 DOI: 10.1002/jsfa.9074] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 02/16/2018] [Accepted: 04/04/2018] [Indexed: 05/23/2023]
Abstract
Cowpea (Vigna unguiculata) is a legume consumed as a high-quality plant protein source in many parts of the world. High protein and carbohydrate contents with a relatively low fat content and a complementary amino acid pattern to that of cereal grains make cowpea an important nutritional food in the human diet. Cowpea has gained more attention recently from consumers and researchers worldwide as a result of its exerted health beneficial properties, including anti-diabetic, anti-cancer, anti-hyperlipidemic, anti-inflammatory and anti-hypertensive properties. Among the mechanisms that have been proposed in the prevention of chronic diseases, the most proven are attributed to the presence of compounds such as soluble and insoluble dietary fiber, phytochemicals, and proteins and peptides in cowpea. However, studies on the anti-cancer and anti-inflammatory properties of cowpea have produced conflicting results. Some studies support a protective effect of cowpea on the progression of cancer and inflammation, whereas others did not reveal any. Because there are only a few studies addressing health-related effects of cowpea consumption, further studies in this area are suggested. In addition, despite the reported favorable effects of cowpea on diabetes, hyperlipidemia and hypertension, a long-term epidemiological study investigating the association between cowpea consumption and diabetes, cardiovascular disease and cancer is also recommended. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Chathuni Jayathilake
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Rizliya Visvanathan
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Afka Deen
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
| | - Ruksheela Bangamuwage
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
| | | | - Srinivas Nammi
- School of Science and Health, Western Sydney University, Sydney, NSW, Australia
- National Institute of Complementary Medicine (NICM), Western Sydney University, Sydney, NSW, Australia
| | - Ruvini Liyanage
- Division of Nutritional Biochemistry, National Institute of Fundamental Studies, Kandy, Sri Lanka
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17
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Figueiredo-González M, Reboredo-Rodríguez P, González-Barreiro C, Carrasco-Pancorbo A, Cancho-Grande B, Simal-Gándara J. The involvement of phenolic-rich extracts from Galician autochthonous extra-virgin olive oils against the α-glucosidase and α-amylase inhibition. Food Res Int 2018; 116:447-454. [PMID: 30716967 DOI: 10.1016/j.foodres.2018.08.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 08/03/2018] [Accepted: 08/18/2018] [Indexed: 01/08/2023]
Abstract
'Brava' and 'Mansa de Figueiredo' extra-virgin olive oils (EVOOs) are two varieties identified from north-western Spain. A systematic phenolic characterization of the studied oils was undertaken by LC-ESI-IT-MS. In addition, the role of dietary polyphenols from these EVOOs has been evaluated against the inhibition of key enzymes (α-glucosidase and α-amylase) in the management of diabetes mellitus (DM). Oleuropein and ligstroside derivatives comprised 83% and 67% of the total phenolic compounds in 'Brava' and 'Mansa de Figueiredo' EVOOs, respectively. The main secoiridoids from oleuropein were DOA (3,4-DHPEA-EDA, 59 and 22 mg kg-1, respectively) and the main isomer of OlAgl (3,4-DHPEA-EA, 74 and 23 mg kg-1). The main secoiridoids from ligstroside were D-LigAgl (p-HPEA-EDA or oleocanthal, 23 and 167 mg kg-1) and the main isomer of LigAgl (p-HPEA-EA, 214 and 114 mg kg-1). For α-glucosidase, both EVOO extracts displayed stronger inhibitory activity (IC50 values of 60 ± 8 and 118 ± 9 μg mL-1, respectively) than the commercial inhibitor acarbose (IC50 = 356 ± 21 μg mL-1). Nevertheless, for α-amylase, only 'Brava' extracts showed anti-α-amylase capacity. A daily VOO intake lower than the requirements of EFSA seem to be enough to reach both 50% for α-glucosidase and 25% for α-amylase inhibition. These findings support the potential health benefits derived from Galician EVOOs that might be probably linked to the outstanding high concentration levels of phenolic acids and flavonoids.
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Affiliation(s)
- M Figueiredo-González
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
| | - P Reboredo-Rodríguez
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo, Ourense Campus, E-32004 Ourense, Spain; Dipartimento di Scienze Cliniche Specialistiche ed Odontostomatologiche (DISCO)-Sez. Biochimica, Facoltà di Medicina, Università Politecnica delle Marche, Via Ranieri 65, 60131 Ancona, Italy
| | - C González-Barreiro
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
| | - A Carrasco-Pancorbo
- Department of Analytical Chemistry, Faculty of Science, University of Granada, Ave. Fuentenueva s/n, 18071 Granada, Spain
| | - B Cancho-Grande
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo, Ourense Campus, E-32004 Ourense, Spain.
| | - J Simal-Gándara
- Nutrition and Bromatology Group, Department of Analytical and Food Chemistry, Faculty of Sciences, University of Vigo, Ourense Campus, E-32004 Ourense, Spain
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18
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Kirakosyan A, Gutierrez E, Ramos Solano B, Seymour EM, Bolling SF. The inhibitory potential of Montmorency tart cherry on key enzymes relevant to type 2 diabetes and cardiovascular disease. Food Chem 2018; 252:142-146. [DOI: 10.1016/j.foodchem.2018.01.084] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 12/07/2017] [Accepted: 01/11/2018] [Indexed: 12/13/2022]
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19
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Figueiredo-González M, Reboredo-Rodríguez P, González-Barreiro C, Simal-Gándara J, Valentão P, Carrasco-Pancorbo A, Andrade P, Cancho-Grande B. Evaluation of the neuroprotective and antidiabetic potential of phenol-rich extracts from virgin olive oils by in vitro assays. Food Res Int 2018; 106:558-567. [DOI: 10.1016/j.foodres.2018.01.026] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 01/09/2018] [Accepted: 01/12/2018] [Indexed: 12/17/2022]
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20
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Guo X, Zhang T, Shi L, Gong M, Jin J, Zhang Y, Liu R, Chang M, Jin Q, Wang X. The relationship between lipid phytochemicals, obesity and its related chronic diseases. Food Funct 2018; 9:6048-6062. [DOI: 10.1039/c8fo01026a] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review focuses on phytochemicals in oils, and summarizes the mechanisms of the anti-obesity effects of these compounds in in vitro studies, animal models, and human trials.
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21
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Rodríguez-Pérez C, Segura-Carretero A, Del Mar Contreras M. Phenolic compounds as natural and multifunctional anti-obesity agents: A review. Crit Rev Food Sci Nutr 2017; 59:1212-1229. [PMID: 29156939 DOI: 10.1080/10408398.2017.1399859] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Prevalence of obesity worldwide has reached pandemic proportions. Despite the increasing evidence in the implication of phenolic compounds in obesity management, the real effect is not completely understood. The available in vitro and in vivo studies have demonstrated the implication of phenolic compounds in: lowering food intake, decreasing lipogenesis, increasing lipolysis, stimulating fatty acids β-oxidation, inhibiting adipocyte differentiation and growth, attenuating inflammatory responses and suppress oxidative stress. This review encompasses the most recent evidence in the anti-obesity effect of phenolic compounds from plants to different nutraceuticals and functional foods based on the in vitro, in vivo and clinical studies. For that, this review has been focused on popular plant-based products highly consumed today such as cocoa, cinnamon, and olive oil, beverages such as red wine, tea (green, white and black tea) and Hibiscus sabdariffa L. tea, among others.
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Affiliation(s)
- Celia Rodríguez-Pérez
- a Department of Analytical Chemistry , Faculty of Sciences, University of Granada , Avenida Fuentenueva s/n, Granada , Spain
| | - Antonio Segura-Carretero
- a Department of Analytical Chemistry , Faculty of Sciences, University of Granada , Avenida Fuentenueva s/n, Granada , Spain
| | - María Del Mar Contreras
- b Department of Analytical Chemistry , Annex C-3 Building, Campus of Rabanales, University of Córdoba , Córdoba , Spain
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22
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Ying D, Hlaing MM, Lerisson J, Pitts K, Cheng L, Sanguansri L, Augustin MA. Physical properties and FTIR analysis of rice-oat flour and maize-oat flour based extruded food products containing olive pomace. Food Res Int 2017; 100:665-673. [DOI: 10.1016/j.foodres.2017.07.062] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2017] [Revised: 07/26/2017] [Accepted: 07/26/2017] [Indexed: 01/18/2023]
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23
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Collado-González J, Grosso C, Valentão P, Andrade PB, Ferreres F, Durand T, Guy A, Galano JM, Torrecillas A, Gil-Izquierdo Á. Inhibition of α-glucosidase and α-amylase by Spanish extra virgin olive oils: The involvement of bioactive compounds other than oleuropein and hydroxytyrosol. Food Chem 2017; 235:298-307. [PMID: 28554640 DOI: 10.1016/j.foodchem.2017.04.171] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 03/23/2017] [Accepted: 04/26/2017] [Indexed: 12/28/2022]
Abstract
Despite the wide use of extra virgin olive oil (EVOO) to combat several diseases, the antidiabetic and anti-cholinesterase activity of Spanish EVOO have not been assessed. In order to evaluate which compounds are responsible for these activities of five Spanish EVOOs, in addition to flavonoids, we investigated for the first time the effect of the contents of carotenoids, fatty acids (FAs), and phytoprostanes (PhytoPs) on four enzymes: α-glucosidase, α-amylase, acetylcholinesterase, and butyrylcholinesterase. The extracts of these five Spanish EVOOs were found to contain three flavones, three carotenoids, six FAs, and seven classes of PhytoPs. The samples exhibited no in vitro anti-cholinesterase activity but presented strong antidiabetic activity, in the order: 'Arbequina'≈'Picual'≈'Cuquillo'>'Hojiblanca'>'Cornicabra'. The samples showed a higher in vitro hypoglycemic effect than individual or mixed standards, possibly due to interaction between multiple identified compounds and/or a very complex multivariate interaction between other factors.
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Affiliation(s)
- Jacinta Collado-González
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), P.O. Box 164, 30100 Campus University Espinardo, Murcia, Spain
| | - Clara Grosso
- REQUIMTE/Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal
| | - Patricia Valentão
- REQUIMTE/Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal
| | - Paula B Andrade
- REQUIMTE/Laboratório de Farmacognosia, Departamento de Química, Faculdade de Farmácia, Universidade do Porto, Rua de Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal.
| | - Federico Ferreres
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), P.O. Box 164, 30100 Campus University Espinardo, Murcia, Spain
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, University Montpellier I and II, ENSCM, Faculty of Pharmacy, Montpellier, France
| | - Alexandre Guy
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, University Montpellier I and II, ENSCM, Faculty of Pharmacy, Montpellier, France
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron (IBMM), UMR 5247, CNRS, University Montpellier I and II, ENSCM, Faculty of Pharmacy, Montpellier, France
| | - Arturo Torrecillas
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), P.O. Box 164, 30100 Campus University Espinardo, Murcia, Spain
| | - Ángel Gil-Izquierdo
- Research Group on Quality, Safety and Bioactivity of Plant Foods, Department of Food Science and Technology, CEBAS (CSIC), P.O. Box 164, 30100 Campus University Espinardo, Murcia, Spain.
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24
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Hadrich F, Bouallagui Z, Junkyu H, Isoda H, Sayadi S. The α-Glucosidase and α-Amylase Enzyme Inhibitory of Hydroxytyrosol and Oleuropein. J Oleo Sci 2016; 64:835-43. [PMID: 26235001 DOI: 10.5650/jos.ess15026] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
To date, numerous studies have reported on the antidiabetic properties of various plant extracts through inhibition of carbohydrate-hydrolysing enzymes. The objective of this research was to evaluate the inhibitory effect of the hydroxytyrosol and the oleuropein against α-amylase and α-glucosidase. The hydroxytyrosol was purified from olive leaves. The result shows that the hydroxytyrosol had the strongest α-glucosidase inhibitory effect with IC50 values of 150 μM with mild inhibition against α-amylase. The enzyme kinetic studies, using Lineweaver-Burk indicated that, in the presence of the hydroxytyrosol, the Michaelis-Menton constant (Km) remained constant but the maximal velocity (Vmax) decreased, revealing a non-competitive type of inhibition with inhibition constants; Ki for the formation of the inhibitor-enzyme complex and Kis for the formation of the inhibitor-enzyme-substrate complex of 104.3 and 150.1 μM, respectively. On the other hand, oleuropein showedan uncompetitive inhibition. The concentrations used in this work were below cytotoxic levels observed at 400 μM. However, at 600 μM, the hydroxytyrosol significantly decreased viability of the Caco-2 cells (p < 0.05) and in the case of the oleuropein, there's an increase in cell number compared to control (p < 0.05). These results suggest that the hydroxytyrosol and oleuropein are two potential effective α-glucosidase inhibitors for management of postprandial hyperglycemia.
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Affiliation(s)
- Fatma Hadrich
- Environmental Bioprocesses Laboratory, Laboratoire mixte international (LMI-ECOS-MED), Sfax Biotechnology Center
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Jimenez-Lopez JC, Zafra A, Palanco L, Florido JF, Alché JDD. Identification and Assessment of the Potential Allergenicity of 7S Vicilins in Olive (Olea europaea L.) Seeds. BIOMED RESEARCH INTERNATIONAL 2016; 2016:4946872. [PMID: 27034939 PMCID: PMC4789380 DOI: 10.1155/2016/4946872] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/16/2015] [Revised: 01/25/2016] [Accepted: 02/03/2016] [Indexed: 12/23/2022]
Abstract
Olive seeds, which are a raw material of interest, have been reported to contain 11S seed storage proteins (SSPs). However, the presence of SSPs such as 7S vicilins has not been studied. In this study, following a search in the olive seed transcriptome, 58 sequences corresponding to 7S vicilins were retrieved. A partial sequence was amplified by PCR from olive seed cDNA and subjected to phylogenetic analysis with other sequences. Structural analysis showed that olive 7S vicilin contains 9 α-helixes and 22 β-sheets. Additionally, 3D structural analysis displayed good superimposition with vicilin models generated from Pistacia and Sesamum. In order to assess potential allergenicity, T and B epitopes present in these proteins were identified by bioinformatic approaches. Different motifs were observed among the species, as well as some species-specific motifs. Finally, expression analysis of vicilins was carried out in protein extracts obtained from seeds of different species, including the olive. Noticeable bands were observed for all species in the 15-75 kDa MW interval, which were compatible with vicilins. The reactivity of the extracts to sera from patients allergic to nuts was also analysed. The findings with regard to the potential use of olive seed as food are discussed.
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Affiliation(s)
- Jose C. Jimenez-Lopez
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain
| | - Adoración Zafra
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain
- Elayo Group, Castillo de Locubín, 23670 Jaén, Spain
| | - Lucía Palanco
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain
| | | | - Juan de Dios Alché
- Plant Reproductive Biology Laboratory, Department of Biochemistry, Cell and Molecular Biology of Plants, Estación Experimental del Zaidín, CSIC, 18008 Granada, Spain
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Bonetti A, Venturini S, Ena A, Faraloni C. Innovative method for recovery and valorization of hydroxytyrosol from olive mill wastewaters. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2016; 74:73-86. [PMID: 27386985 DOI: 10.2166/wst.2016.181] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The nutritional properties of olive oil can be attributed to its oleic acid and phenolic compounds content, acting as natural oxidants to prevent human diseases. In particular, hydroxytyrosol has an anti-inflammatory action similar to omega 3 fatty acids from fish oil. The olive oil production was conducted by two extraction procedures: first, a two-phase extraction giving extra-virgin olive oil and humid pomace, second, a three-phase working process of humid pomace, obtaining another minimum quantity of extra-virgin olive oil, 'dry' pomace devoid of polyphenols, and mill wastewaters rich in anti-oxidant compounds. The aim of this processing was to employ water to extract the highest concentration of polyphenols from humid pomace and convey them in oil mill wastewaters for extraction. Processed olives were 37,200 kg, pomace deprived of polyphenols was equal to 20,400 kg and processing was performed with 500 kg of olives per hour. This method offers advantages of using cheap equipment and technical simplicity.
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Affiliation(s)
- A Bonetti
- Institute of Ecosystem Study, National Research Council (ISE-CNR), Via Madonna del Piano, 10, 50019 Florence, Italy E-mail:
| | - S Venturini
- Institute of Ecosystem Study, National Research Council (ISE-CNR), Via Madonna del Piano, 10, 50019 Florence, Italy E-mail:
| | - A Ena
- Institute of Ecosystem Study, National Research Council (ISE-CNR), Via Madonna del Piano, 10, 50019 Florence, Italy E-mail:
| | - C Faraloni
- Institute of Ecosystem Study, National Research Council (ISE-CNR), Via Madonna del Piano, 10, 50019 Florence, Italy E-mail:
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Dekdouk N, Malafronte N, Russo D, Faraone I, De Tommasi N, Ameddah S, Severino L, Milella L. Phenolic Compounds from Olea europaea L. Possess Antioxidant Activity and Inhibit Carbohydrate Metabolizing Enzymes In Vitro. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2015; 2015:684925. [PMID: 26557862 PMCID: PMC4618337 DOI: 10.1155/2015/684925] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Accepted: 07/13/2015] [Indexed: 01/12/2023]
Abstract
Phenolic composition and biological activities of fruit extracts from Italian and Algerian Olea europaea L. cultivars were studied. Total phenolic and tannin contents were quantified in the extracts. Moreover 14 different phenolic compounds were identified, and their profiles showed remarkable quantitative differences among analysed extracts. Moreover antioxidant and enzymatic inhibition activities were studied. Three complementary assays were used to measure their antioxidant activities and consequently Relative Antioxidant Capacity Index (RACI) was used to compare and easily describe obtained results. Results showed that Chemlal, between Algerian cultivars, and Coratina, among Italian ones, had the highest RACI values. On the other hand all extracts and the most abundant phenolics were tested for their efficiency to inhibit α-amylase and α-glucosidase enzymes. Leccino, among all analysed cultivars, and luteolin, among identified phenolic compounds, were found to be the best inhibitors of α-amylase and α-glucosidase enzymes. Results demonstrated that Olea europaea fruit extracts can represent an important natural source with high antioxidant potential and significant α-amylase and α-glucosidase inhibitory effects.
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Affiliation(s)
- Nadia Dekdouk
- Facultè des Sciences de la Nature et de la Vie, Universitè des Freres Mentouri Constantine, route de Ain El Bey, 25 000 Constantine, Algeria
| | - Nicola Malafronte
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II 132, Fisciano, 84084 Salerno, Italy
| | - Daniela Russo
- Department of Science, Basilicata University, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Immacolata Faraone
- Department of Science, Basilicata University, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
| | - Nunziatina De Tommasi
- Dipartimento di Farmacia, Università di Salerno, Via Giovanni Paolo II 132, Fisciano, 84084 Salerno, Italy
| | - Souad Ameddah
- Facultè des Sciences de la Nature et de la Vie, Universitè des Freres Mentouri Constantine, route de Ain El Bey, 25 000 Constantine, Algeria
| | - Lorella Severino
- Department of Veterinary Medicine and Animal Production, Division of Food and Veterinary Toxicology, University of Naples Federico II, Via Delpino 1, 80137 Naples, Italy
| | - Luigi Milella
- Department of Science, Basilicata University, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
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Alu'datt MH, Rababah T, Ereifej K, Gammoh S, Alhamad MN, Mhaidat N, Kubow S, Johargy A, Alnaiemi OJ. Investigation of natural lipid-phenolic interactions on biological properties of virgin olive oil. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:11967-11975. [PMID: 25389645 DOI: 10.1021/jf504557k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
There is limited knowledge regarding the impact of naturally occurring lipid-phenolic interactions on the biological properties of phenolics in virgin olive oil. Free and bound phenolics were isolated via sequential methanolic extraction at 30 and 60 °C, and were identified and quantified using reversed phase high performance liquid chromatography, liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS), and gas chromatography. Decreased oleic acid concentrations and increased concentrations of palmitoleic acid, stearic, linoleic, and linolenic acids were observed in virgin olive oil after removal of free and bound lipid phenolic compounds. The presence of p-hydroxybenzoic acid and tyrosol bound to glycerides was determined via LC-MS/MS, which indicates natural lipid-phenolic interactions in virgin olive oil. Both free and lipid bound phenolic extracts exerted antiproliferative activities against the CRC1 and CRC5 colorectal cancer cell lines. The present work indicates that naturally occurring lipid-phenolic interactions can affect the biological properties of phenolics in virgin olive oil.
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Affiliation(s)
- Muhammad H Alu'datt
- Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology , P.O. Box 3030, Irbid 22110, Jordan
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Quantitation of Metals During the Extraction of Virgin Olive Oil from Olives Using ICP-MS after Microwave-assisted Acid Digestion. J AM OIL CHEM SOC 2014. [DOI: 10.1007/s11746-014-2511-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Mohamed S. Functional foods against metabolic syndrome (obesity, diabetes, hypertension and dyslipidemia) and cardiovasular disease. Trends Food Sci Technol 2014. [DOI: 10.1016/j.tifs.2013.11.001] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Dermeche S, Nadour M, Larroche C, Moulti-Mati F, Michaud P. Olive mill wastes: Biochemical characterizations and valorization strategies. Process Biochem 2013. [DOI: 10.1016/j.procbio.2013.07.010] [Citation(s) in RCA: 369] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Caligiani A, Tonelli L, Palla G, Marseglia A, Rossi D, Bruni R. Looking beyond sugars: phytochemical profiling and standardization of manna exudates from Sicilian Fraxinus excelsior L. Fitoterapia 2013; 90:65-72. [PMID: 23850543 DOI: 10.1016/j.fitote.2013.07.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2013] [Revised: 06/27/2013] [Accepted: 07/01/2013] [Indexed: 11/17/2022]
Abstract
Different grades of genuine and counterfeit Fraxinus excelsior exudates, marketed as natural sweeteners or mild laxatives, were evaluated for their proximate composition and for saccharidic, organic acids, lipidic and phenolic profile by means of GC-MS and (1)H NMR. Genuine samples contained mannitol (39-48 g/100 g, according to the grade), fructose (9-16 g/100 g), glucose (2-3.7 g/100 g), sorbitol (0,5-0,6 g/100 g), galactose (0.02-0.74 g/100 g), oligosaccharides as mannotriose (13-22 g/100 g) and stachyose (1-11 g/100 g), and traces of myo-inositol, mannose, sucrose. On the contrary, counterfeit samples contained mostly mannitol and sorbitol, with traces of fructose, glucose and mannose. Differences in ash, total polyphenolic content and fatty acid composition allowed a quick identification of counterfeit products, confirmed by a distinct mono-, oligosaccharidic and phenolic pattern. Elenolic acid (63-1628 mg/kg), tyrosol (15-774 mg/kg), homovanillic acid (2,39-52.8 mg/Kg), dopaol (0.8-63 mg/kg), pinoresinol (4.2-18.5 mg/kg) and fraxetin (0.25-11.64 mg/kg), albeit showing a wide concentration range, were the most abundant substances detected in the phenolic fraction of Fraxinus manna, while esculetin, p-hydroxybenzoic acid, 4-hydroxyphenacetic acid, 3,4 hydroxybenzoic acid, hydroxy-pinoresinol, medioresinol and siringaresinol were present in low amounts. The polyphenolic profile may be used as a marker for authentication and should be considered in the evaluation of nutritional and health properties ascribed to Fraxinus manna.
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Affiliation(s)
- Augusta Caligiani
- Dip. di Scienze degli Alimenti, LS9 Interlab Group, Viale G. Usberti 17A, 43124, Università di Parma, Italy
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Guarrera PM, Savo V. Perceived health properties of wild and cultivated food plants in local and popular traditions of Italy: A review. JOURNAL OF ETHNOPHARMACOLOGY 2013; 146:659-680. [PMID: 23395624 DOI: 10.1016/j.jep.2013.01.036] [Citation(s) in RCA: 90] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2012] [Revised: 01/26/2013] [Accepted: 01/28/2013] [Indexed: 05/28/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Many wild and cultivated plants are rich in mineral elements and bioactive compounds and are consumed for health purposes. Studies have demonstrated the curative properties of many of these food plants. In this paper, we discuss the properties of several plants with potential health benefits that have previously received little attention. AIM OF THE STUDY This review provides an overview and critical discussion of food plants perceived by informants (emic view) as healthy or used as 'food medicine' in Italy. Pharmacological activity of these plants is explored, based upon published scientific research (etic view). Preparation methods, taste perception, toxicity and various potentialities of some food plants are also discussed. MATERIALS AND METHODS The present review includes literature available from 1877 to 2012. The information was collected from books, scientific papers, and abstracts that reported any plants used as food medicine in Italy. The perceived health properties were analyzed in the framework of recent international phytochemical and phytopharmacological literature. RESULTS A total of 67 edible wild plants and 18 cultivated vegetables, distributed into 20 families, were reported by informants (in literature). Several plants were highly cited (e.g., Taraxacum officinale Webb., Crepis vesicaria L., Allium cepa L., Allium sativum L.). The most frequent health properties attributed to edible plants by the informants were: laxative (22 species), diuretic (15), digestive (11), galactagogue (8), antitussive (cough) (8), hypotensive (7), tonic (7), sedative (7), hypoglycemic (6). CONCLUSIONS Some edible plants are promising for their potential health properties, such as Crepis vesicaria L., Sanguisorba minor Scop. and Sonchus oleraceus L. Several wild species were perceived by informants to maintain health but have never been studied from a phytochemical or pharmacological point of view: e.g., Asparagus albus L., Crepis leontodontoides All., Hyoseris radiata L. subsp. radiata, Phyteuma spicatum L.
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Affiliation(s)
- P M Guarrera
- Istituto Centrale per la Demoetnoantropologia, Ministero Beni e Attività Culturali, Piazza Marconi 8-10, I-00144 Rome, Italy.
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Phenolic compounds in cowpea and horse gram flours in comparison to chickpea flour: Evaluation of their antioxidant and enzyme inhibitory properties associated with hyperglycemia and hypertension. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.01.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Etxeberria U, de la Garza AL, Campión J, Martínez JA, Milagro FI. Antidiabetic effects of natural plant extracts via inhibition of carbohydrate hydrolysis enzymes with emphasis on pancreatic alpha amylase. Expert Opin Ther Targets 2012; 16:269-97. [PMID: 22360606 DOI: 10.1517/14728222.2012.664134] [Citation(s) in RCA: 228] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
INTRODUCTION The increasing prevalence of type 2 diabetes mellitus and the negative clinical outcomes observed with the commercially available anti-diabetic drugs have led to the investigation of new therapeutic approaches focused on controlling postprandrial glucose levels. The use of carbohydrate digestive enzyme inhibitors from natural resources could be a possible strategy to block dietary carbohydrate absorption with less adverse effects than synthetic drugs. AREAS COVERED This review covers the latest evidence regarding in vitro and in vivo studies in relation to pancreatic alpha-amylase inhibitors of plant origin, and presents bioactive compounds of phenolic nature that exhibit anti-amylase activity. EXPERT OPINION Pancreatic alpha-amylase inhibitors from traditional plant extracts are a promising tool for diabetes treatment. Many studies have confirmed the alpha-amylase inhibitory activity of plants and their bioactive compounds in vitro, but few studies corroborate these findings in rodents and very few in humans. Thus, despite some encouraging results, more research is required for developing a valuable anti-diabetic therapy using pancreatic alpha-amylase inhibitors of plant origin.
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Affiliation(s)
- Usune Etxeberria
- University of Navarra, Department of Nutrition, Food Science, Physiology and Toxicology, C/Irunlarrea, 1 31008, Pamplona, Spain
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