1
|
Mzilem S, Boukhchina S. Typeable ampicillin-resistant Haemophilus influenzae strains in Tunisian's children. Medicine (Baltimore) 2022; 101:e30713. [PMID: 36197170 PMCID: PMC9509104 DOI: 10.1097/md.0000000000030713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Here, we report the frequency of capsulated ampicillin-resistant Haemophilus influenzae strains isolated from children in Tunisia, particularly capsular serotype b, by polymerase chain reaction (PCR) to determine the molecular mechanisms underlying ampicillin resistance. METHODS We considered 22 capsulated H influenzae strains selected from a series of 91 ampicillin-resistant H influenzae strains isolated from children between 2010 and 2011 in Tunisia. The capsular serotypes of these strains were identified by slide agglutination and PCR. RESULTS By PCR, 19 (20.88%) serotype b, 1 (1.1%) serotype a, 2 (2.2%) serotypes d and f and 69 (75.82%) non-typeable strains were found among the 91 ampicillin-resistant H influenzae strains. 100% of the assumption between the consequences of antigenic examinations and PCR was found. The serotype b strains showed biotypes I, II, III, IV, VI, and VIII. The other capsulated strains showed biotypes IV and VIII. Thirteen of the serotype b strains created β-lactamase (14.28%). The 19 serotype b ampicillin-resistant H influenzae strains were subdivided into 3 bunches as indicated: The gathering of the β-lactamase positive, ampicillin-resistant where 11 strains (57.89%) were β-lactamase positive blaTEM-1 (+) and ftsI (+). The second gathering of the β-lactamase negative, ampicillin-resistant strains, where 6 isolates (31.58%) were β-lactamase negative blaTEM-1 (-) and ftsI (-), and lastly, the gathering of the β-lactamase positive, amoxicillin-clavulanate resistant where 2 isolates (10.52%) were β-lactamase positive blaTEM-1 (+) and ftsI (-). CONCLUSION PCR should be used in our country because it may contribute to decreasing the probability of transmission of these strains, especially those showing the two mechanisms of resistance among children in Tunisia.
Collapse
Affiliation(s)
- Sabrine Mzilem
- LR18ES03, Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorization, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
- *Correspondence: Sabrine Mzilem, Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorization, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia (e-mail: )
| | - Sadok Boukhchina
- LR18ES03, Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorization, Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia
| |
Collapse
|
2
|
Bouali I, Rattouli H, Herchi W, Martine L, Grégoire S, Albouchi A, Martínez-Force E, Boukhchina S, Berdeaux O. Chemical composition and thermal properties of Tunisian pecan nut [Carya illinoinensis (Wangenh.) K. Koch] oils. grasasaceites 2022. [DOI: 10.3989/gya.0436211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
An investigation on fatty acid, triacylglycerol, tocopherol, and xanthophyll contents and thermal properties of pecan (Carya illinoinensis) kernel oils from two cultivars was carried out. The main fatty acids were oleic acid, followed by linoleic and palmitic acids. The predominant triacylglycerols were OOL, OOO, and OLL (where O stands for oleoyl and L for linoleoyl). Pecan kernel oil is a rich source of tocopherols, mainly γ-tocopherol. Two xanthophylls (lutein and zeaxanthin) were investigated, and lutein was found to be the major one. Thermal behavior was studied by differential scanning calorimetry (DSC). Pecan nut oil displayed melting and crystallization transitions at low-temperature zones. The difference between DSC parameter values provides a path for distinguishing among cultivars. These data promote pecan kernel oil as a potential source of bioactive compounds with nutraceutical properties (monounsaturated fatty acids, tocopherols, and xanthophylls) and reveal, for the first time, the thermal properties of Carya illinoinensis oil.
Collapse
|
3
|
El Mouhab EH, Rebai O, Zekri S, Charfi L, Boukhchina S, Amri M. Morus alba Leaf Extract Attenuates Glyphosate-Induced Oxidative Stress, Inflammation and Alleviates Liver Injury in Rats. INT J PHARMACOL 2022. [DOI: 10.3923/ijp.2022.24.35] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
4
|
Khouaja R, El Mouhab EH, Missaoui M, Bourzam A, Zekri S, Charfi L, Boukhchina S, Amri M. Molecular and Histological Study of Low Molecular Weight Heparin’s Effect Against Cerebral Ischemic Injury. INT J PHARMACOL 2021. [DOI: 10.3923/ijp.2021.190.199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
5
|
Slama A, Cherif A, Boukhchina S. Importance of New Edible Oil Extracted from Seeds of Seven Cereals Species. J FOOD QUALITY 2021. [DOI: doi.org/10.1155/2021/5531414] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Cereals constitute a major source of human and animal nutrition. In spite of the extensive production of numerous cereal species, some information is unavailable in terms of lipid composition. Due to the oil increasing demand by the overgrowth of the world population, oleaginous species have encountered problems in recent years. In order to find new sources of edible oil, the aim of this study was to describe the importance of seventeen varieties oil of seven cereal species. Oils were extracted by the Soxhlet method, and fatty acids were measured by gas chromatography. The present study demonstrated that the lipid content of cereal seeds ranged from 1.42% to 5.97%. In average, oat, millet, and maize had significantly higher lipid content, respectively, 5.97%, 5.06%, and 4.71%. The main fatty acid recorded in the studied cereal species, except oat, was linoleic acid C18 : 2 (ω6). Regarding the essential fatty acids linoleic acid C18 : 2 and linolenic acid C18 : 3 (ω3), the oil of all studied species, except oat, was rich in ω6 fatty acids (47.50 to 60.13%) and poor in ω3 (0.45% to 5.33%). The content of unsaturated fatty acids in all studied species ranged from 77.22 to 81.89%. Cereal oil was considered as highly unsaturated oil with the presence of the essential fatty acids necessary for human health. Therefore, cereal oils could be commercialized in small quantities in pharmacies or parapharmacies.
Collapse
Affiliation(s)
- Amor Slama
- University of Tunis El Manar, Faculty of Sciences of Tunis, LR18ES03,Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorisation, Tunis 2092, Tunisia
- University of Carthage, Faculty of Sciences of Bizerte, Jarzouna-Bizerte 7021, Tunisia
| | - Ammar Cherif
- University of Tunis El Manar, Faculty of Sciences of Tunis, LR18ES03,Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorisation, Tunis 2092, Tunisia
- Department of Science Laboratories, College of Sciences and Arts, Qassim University, Ar Rass 51921, Saudi Arabia
| | - Sadok Boukhchina
- University of Tunis El Manar, Faculty of Sciences of Tunis, LR18ES03,Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorisation, Tunis 2092, Tunisia
| |
Collapse
|
6
|
Missaoui M, D’Antuono I, D’Imperio M, Linsalata V, Boukhchina S, Logrieco AF, Cardinali A. Characterization of Micronutrients, Bioaccessibility and Antioxidant Activity of Prickly Pear Cladodes as Functional Ingredient. Molecules 2020; 25:molecules25092176. [PMID: 32384787 PMCID: PMC7248772 DOI: 10.3390/molecules25092176] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 05/01/2020] [Accepted: 05/04/2020] [Indexed: 12/20/2022] Open
Abstract
The Opuntia ficus indica (L.) (OFI) is used as a nutritional and pharmaceutical agent in various dietary and value added products. This study underlines the possible use of native prickly pear cladode powder as a functional ingredient for health-promoting food production. To summarise, chemical characterization of polyphenols, minerals and soluble dietary fibre was performed; furthermore, the antioxidant activity and bioaccessibility of polyphenols and minerals were assessed. Eleven compounds between phenolic acids and flavonoids were identified, with piscidic acid and isorhamnetin derivatives being the most abundant. Opuntia’s dietary fibre was mainly constituted of mucilage and pectin, and was composed of arabinose, galactose, glucose, mannose, rhamnose, and xylose sugars. The polyphenols’ bioaccessibility was very high: piscidic acid at 200%, eucomic and ferulic acids >110% and flavonoids from 89% to 100%. The prickly pear cladode powder is also a source of minerals, as cations (calcium, sodium, potassium and magnesium) and anions (sulphate and chloride), with high magnesium bioaccessibilty (93%). OFI powder showed good capacity of radical scavenging measured by DPPH and ABTS methods, with 740 and 775 μmol Trolox/100 g OFI, respectively. Finally, the presented results allow the consideration of this natural product as a source of several essential nutrients, with a possible use in the food industry as a functional ingredient.
Collapse
Affiliation(s)
- Meriam Missaoui
- Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorization, Faculty of Science of Tunis, University Tunis El Manar, LR18ES03, Tunis 2092, Tunisia; (M.M.); (S.B.)
| | - Isabella D’Antuono
- Institute of Sciences of Food Production (ISPA), National Council of Research (CNR), 70126 Bari, Italy; (M.D.); (V.L.); (A.F.L.); (A.C.)
- Correspondence: ; Tel.: +39-080-5929303; Fax: +39-080-5929374
| | - Massimiliano D’Imperio
- Institute of Sciences of Food Production (ISPA), National Council of Research (CNR), 70126 Bari, Italy; (M.D.); (V.L.); (A.F.L.); (A.C.)
| | - Vito Linsalata
- Institute of Sciences of Food Production (ISPA), National Council of Research (CNR), 70126 Bari, Italy; (M.D.); (V.L.); (A.F.L.); (A.C.)
| | - Sadok Boukhchina
- Laboratory of Neurophysiology, Cellular Physiopathology and Biomolecules Valorization, Faculty of Science of Tunis, University Tunis El Manar, LR18ES03, Tunis 2092, Tunisia; (M.M.); (S.B.)
| | - Antonio F. Logrieco
- Institute of Sciences of Food Production (ISPA), National Council of Research (CNR), 70126 Bari, Italy; (M.D.); (V.L.); (A.F.L.); (A.C.)
| | - Angela Cardinali
- Institute of Sciences of Food Production (ISPA), National Council of Research (CNR), 70126 Bari, Italy; (M.D.); (V.L.); (A.F.L.); (A.C.)
| |
Collapse
|
7
|
Sakouhi F, Saadi C, Luigi CP, Boukhchina S. Dynamic Accumulation of Volatile Compounds Between Olive Pulps and Stones and Its Relation with the Fatty Acids Content During the Oil Extraction Process of
Ouslati
and
Chemlali
Olive Fruits. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201900197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Faouzi Sakouhi
- Faculté des Sciences de TunisDépartement de BiologieUniversité Tunis El Manar Laboratoire de recherche LR18ES03 2092 El Manar I Tunisia
| | - Chaima Saadi
- Faculté des Sciences de TunisDépartement de BiologieUniversité Tunis El Manar Laboratoire de recherche LR18ES03 2092 El Manar I Tunisia
| | - Cioni Pier Luigi
- Dipartimento di Chimica Bioorganica e BiofarmaciaUniversita di Pisa Via Bonanno 33 561266 Pisa Italy
| | - Sadok Boukhchina
- Faculté des Sciences de TunisDépartement de BiologieUniversité Tunis El Manar Laboratoire de recherche LR18ES03 2092 El Manar I Tunisia
| |
Collapse
|
8
|
Cherif A, Ammar S, Boukhchina S. Composition and characterization by GC-MS of the essential oil extracted from Nicotiana glauca Graham. Grasas y Aceites 2019. [DOI: 10.3989/gya.0927182] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Fresh leaves of N. glauca were collected from the northern region of Tunisia. The leaves were submitted to water distillation for 4 h, using a Clevenger-type apparatus. The obtained essential oils were dried over anhydrous sodium sulphate and after filtration, stored at 4 °C until use. The chemical composition of the isolated essential oil was analyzed by gas chromatography–mass spectrometry (GC–MS). Eighteen compounds were identified: eugenol, the major compound in the essential oil, was present at a high level (58.49%), followed by nonadecane, eugenyl acetate and tridecane, 3-methyl at 6.38; 5.57 and 5.19%, respectively. The percentage of compounds dodecane, 2, 6, 11 trimethyl, tetradecane, docosane, tricosane and 1, 2-benzene dicarboxilic, dibutyl ester varied between 1 and 2%; whereas the other compounds (including limonene, and saturated hydrocarbons) remained at low percentages, not exceeding 1%. This study could be very useful for the characterization, pharmaceutical and therapeutic applications of the essential oil from N. glauca.
Collapse
|
9
|
Cherif A, Boukhchina S, Angers P. GC‐MS Characterization of Cyclic Fatty Acid Monomers and Isomers of Unsaturated Fatty Acids Formed During the Soybean Oil Heating Process. EUR J LIPID SCI TECH 2019. [DOI: 10.1002/ejlt.201800296] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ammar Cherif
- Faculty of SciencesDepartment of BiologyUniversity of Tunis El‐ManarTunis2092Tunisia
| | - Sadok Boukhchina
- Faculty of SciencesDepartment of BiologyUniversity of Tunis El‐ManarTunis2092Tunisia
| | - Paul Angers
- Department of Food Science and NutritionUniversity LavalQuebecQC G1V 0A6Canada
| |
Collapse
|
10
|
Chamli D, Bootello MA, Bouali I, Jouhri S, Boukhchina S, Martínez-Force E. Chemical characterization and thermal properties of kernel oils from Tunisian peach and nectarine varieties of Prunus persica. Grasas y Aceites 2017. [DOI: 10.3989/gya.0111171] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A comparative study was conducted to determine the fatty acids, triacylglycerol compositions and thermal properties of Tunisian kernel oils from the Prunus persica varieties, peach and nectarine, grown in two areas of Tunisia, Gabes and Morneg. Qualitatively, the fatty acids composition and triacylglycerol species were identical for all samples. Oleic acid (67.7-75.0%) was the main fatty acid, followed by linoleic (15.7-22.1%) and palmitic (5.6-6.3%) acids. The major triacylglycerol species were triolein, OOO (38.4-50.5%), followed by OOL (18.2-23.2%), POO (8.3-9.7%) and OLL (6.3-10.1%). The thermal profiles were highly influenced by the high content of triolein due to the importance of oleic acid in these oils. Moreover, the fatty acids distribution in TAG external positions was determined as corresponding to an α asymmetry coefficient that was between 0.10 and 0.12, indicating a high asymmetry in the distribution of saturated fatty acids in the position sn-1 and sn-3 in the TAG species of all samples.
Collapse
|
11
|
Abdallah IB, Macciola V, Boukhchina S, de La Torre Fornell R, De Leonardis A. The negligible role of ellagic acid in preventing fat oxidation of Tunisian walnuts (Juglans regia L.). Food Measure 2017. [DOI: 10.1007/s11694-017-9519-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
|
12
|
Ben Arfa K, de Person M, Hmida D, Bleton J, Boukhchina S, Tchapla A, Héron S, Moussa F. UHPLC-APCI-MS Profiling of Triacylglycerols in Vegetable Oils—Application to the Analysis of Four North African Sesame Seed Varieties. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-0851-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
13
|
Trabelsi H, Renaud J, Bouali I, Mayer P, Boukhchina S. Effect of ripening stage on aliphatic alcohol, 4‐monomethylsterol and 4,4‐dimethylsterol compositions of
Pistacia lentiscus
fruit (lentisc). EUR J LIPID SCI TECH 2016. [DOI: 10.1002/ejlt.201500079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Hajer Trabelsi
- Faculté des Sciences de TunisUnité de Biochimie des Lipides, Université de Tunis El Manar, El Manar IITunisia
| | - Justin Renaud
- Department of ChemistryLaboratory of Mass spectrometry, University of Ottawa, Ottawa, OntarioCanada
| | - Intidhar Bouali
- Faculté des Sciences de TunisUnité de Biochimie des Lipides, Université de Tunis El Manar, El Manar IITunisia
| | - Paul Mayer
- Department of ChemistryLaboratory of Mass spectrometry, University of Ottawa, Ottawa, OntarioCanada
| | - Sadok Boukhchina
- Faculté des Sciences de TunisUnité de Biochimie des Lipides, Université de Tunis El Manar, El Manar IITunisia
| |
Collapse
|
14
|
Bou Abdallah I, Baatour O, Mechrgui K, Herchi W, Albouchi A, Chalghoum A, Boukhchina S. Essential oil composition of walnut tree (Juglans regiaL.)’ leaves from Tunisia. Journal of Essential Oil Research 2016. [DOI: 10.1080/10412905.2016.1166157] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
15
|
Sebei K, Gnouma A, Herchi W, Sakouhi F, Boukhchina S. Lipids, proteins, phenolic composition, antioxidant and antibacterial activities of seeds of peanuts (Arachis hypogaea l) cultivated in Tunisia. Biol Res 2016; 46:257-63. [PMID: 24346073 DOI: 10.4067/s0716-97602013000300006] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2013] [Accepted: 07/29/2013] [Indexed: 11/17/2022] Open
Abstract
Fatty acid composition of peanut seed oil in four varieties cultivated in Tunisia showed that linoleic (C18:2), oleic (C18:1) and palmitic (C16) acids account for more than 84% for Chounfakhi and Massriya and for more than 85% of the total fatty acids of Trabilsia and Sinya seed oil respectively. Seed oil contents were significantly different (P ≤ 0.05) and did not exceed 48%. The study of total phenolics revealed that Chounfakhi contained more total phenolics (2.1 mg GAE/g DW), followed by the Massriya and Sinya cultivars (1.35 mg GAE/g DW for each); Trabilsia presented the lowest total phenolic content with 1 mg GAE/g DW. Considerable antiradical ability was found, especially in the Trabilsia peanut seed cultivar (IC50 = 1550 μg/ml), the Massriya and Sinya cultivars had, respectively, 720 and 820 mg/ml IC50. In the Massriya variety the sterol fraction showed antibacterial activity against Listeria ivanovii, Listeria inocua, Pseudomonas aeruginosa, Staphylococus aureus, Enterococcus hirae and Bacillus cereus.
Collapse
Affiliation(s)
- Khaled Sebei
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia
| | - Asma Gnouma
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia
| | - Wahid Herchi
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia
| | - Faouzi Sakouhi
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia
| | - Sadok Boukhchina
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, , Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Tunisia
| |
Collapse
|
16
|
Trabelsi H, Renaud J, Herchi W, Boukhchina S, Mayer P. Triacylglycerols and aliphatic alcohols from fruits of three Tunisian Pistacia lentiscus populations. J Sci Food Agric 2015; 95:2028-2032. [PMID: 25214472 DOI: 10.1002/jsfa.6915] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2014] [Revised: 09/03/2014] [Accepted: 09/08/2014] [Indexed: 06/03/2023]
Abstract
BACKGROUND The search for other sources of vegetable oils by the exploitation and the enhancement of other oil plants will be needed to meet the demands of the international market. This study aims to determine the triacylglycerol (TAG) molecular species and aliphatic alcohol compositions of unexploited fruits of three Tunisian Pistacia lentiscus (lentisc) populations from the Korbous, Tebaba and Rimel areas of Tunisia. RESULTS Results show that the content of total TAG varies from 738.32 mg g(-1) of total lipid in the Tebaba population to 981.15 mg g(-1) of total lipid in the Korbous population. Furthermore, 14 species of TAG were detected in the three studied populations. In addition, 13 aliphatic compounds were identified and classified into two groups: (1) aliphatic alcohols with fewer than 20 carbon atoms (hexadecanol, heptadecanol, (Z)-octadec-9-en-1-ol, octadecanol and nonadécanol); and (2) the policosanol group (eicosenol, docosenol, docosanol tetracosanol, hexacosanol octacosanol and triacontanol). The Tebaba population showed a distinct composition compared to Korbous and Rimel where heptadecanol is the major compound. CONCLUSION Quantitatively, the most abundant TAG species are those constituted by palmitic, oleic and/or linoleic acid. Furthermore, the significant difference observed at the oil composition is associated with a remarkable station effect.
Collapse
Affiliation(s)
- Hajer Trabelsi
- Université de Tunis El Manar, Département de Biologie, Faculté des Sciences de Tunis Laboratoire de Biochimie des Lipides, 2092 El Manar II, Tunis, Tunisia
| | - Justin Renaud
- Laboratory of Mass Spectrometry, Chemistry Department, University of Ottawa, Ottawa, Ontario, K1N 6 N5, Canada
| | - Wahid Herchi
- Université de Tunis El Manar, Département de Biologie, Faculté des Sciences de Tunis Laboratoire de Biochimie des Lipides, 2092 El Manar II, Tunis, Tunisia
| | - Sadok Boukhchina
- Université de Tunis El Manar, Département de Biologie, Faculté des Sciences de Tunis Laboratoire de Biochimie des Lipides, 2092 El Manar II, Tunis, Tunisia
| | - Paul Mayer
- Laboratory of Mass Spectrometry, Chemistry Department, University of Ottawa, Ottawa, Ontario, K1N 6 N5, Canada
| |
Collapse
|
17
|
Herchi W, Bahashwan S, Sakouhi F, Boukhchina S. Influence of harvest year in the physicochemical properties and antioxidant activity of flaxseed hull oils from Tunisia. Food Sci Technol (Campinas) 2015. [DOI: 10.1590/1678-457x.6579] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
18
|
Herchi W, Bahashwan S, Sebei K, Ben Saleh H, Kallel H, Boukhchina S. Effects of germination on chemical composition and antioxidant activity of flaxseed ( Linum usitatissimum L) oil. Grasas y Aceites 2015. [DOI: 10.3989/gya.0463141] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
19
|
Sebei K, Sakouhi F, Herchi W, Khouja ML, Boukhchina S. Chemical composition and antibacterial activities of seven Eucalyptus species essential oils leaves. Biol Res 2015; 48:7. [PMID: 25654423 PMCID: PMC4417289 DOI: 10.1186/0717-6287-48-7] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2014] [Accepted: 01/07/2015] [Indexed: 11/17/2022] Open
Abstract
Background In this paper, we have studied the essential oils chemical composition of the leaves of seven Eucalyptus species developed in Tunisia. Eucalyptus leaves were picked from trees growing in different arboretums in Tunisia. Choucha and Mrifeg arboretums located in Sedjnene, region of Bizerte (Choucha: E. maideni, E. astrengens et E. cinerea; Mrifeg : E. leucoxylon), Korbous arboretums located in the region of Nabeul, North East Tunisia with sub-humid bioclimate, (E. lehmani), Souiniet-Ain Drahem arboretum located in region of Jendouba (E. sideroxylon, E. bicostata). Essential oils were individually tested against a large panel of microorganisms including Staphylococcus aureus (ATCC 6539), Escherichia coli (ATCC 25922), Enterococcus faecalis (ATCC29212), Listeria ivanovii (RBL 30), Bacillus cereus (ATCC11778). Results The yield of essential oils ranged from 1.2% to 3% (w/w) for the different Eucalyptus species. All essential oils contain α-pinene, 1,8-cineol and pinocarveol-trans for all Eucalyptus species studied. The 1,8-cineol was the major compound in all species (49.07 to 83.59%). Diameter of inhibition zone of essential oils of Eucalyptus species varied from 10 to 29 mm. The largest zone of inhibition was obtained for Bacillus cereus (E. astrengens) and the lowest for Staphylococcus aureus (E. cinerea). The essential oils from E. maideni, E. astrengens, E. cinerea (arboretum of Bizerte), E. bicostata (arboretum of Aindraham) showed the highest antibacterial activity against Listeria ivanovii and Bacillus cereus. Conclusion The major constituents of Eucalyptus leaves essential oils are 1,8-cineol (49.07 to 83.59%) and α-pinene (1.27 to 26.35%). The essential oils from E. maideni, E. astrengens, E. cinerea, E. bicostata showed the highest antibacterial activity against Listeria ivanovii and Bacillus cereus, they may have potential applications in food and pharmaceutical products.
Collapse
Affiliation(s)
- Khaled Sebei
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Elmanar, 2092, Tunis, Tunisia.
| | - Fawzi Sakouhi
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Elmanar, 2092, Tunis, Tunisia.
| | - Wahid Herchi
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Elmanar, 2092, Tunis, Tunisia.
| | | | - Sadok Boukhchina
- Laboratoire de Biochimie des Lipides et Interactions avec les Macromolécules, Faculté des Sciences de Tunis, Université de Tunis-El-Manar, Elmanar, 2092, Tunis, Tunisia.
| |
Collapse
|
20
|
Rabhi F, Narváez-Rivas M, Boukhchina S, León-Camacho M. Authentication of Quercus Species According to Their n-Alkanes Profile by Off-Line Combination of High-Performance Liquid Chromatography and Gas Chromatography. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-0051-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
21
|
Abdallah IB, Tlili N, Martinez-Force E, Rubio AGP, Perez-Camino MC, Albouchi A, Boukhchina S. Content of carotenoids, tocopherols, sterols, triterpenic and aliphatic alcohols, and volatile compounds in six walnuts (Juglans regia L.) varieties. Food Chem 2014; 173:972-8. [PMID: 25466114 DOI: 10.1016/j.foodchem.2014.10.095] [Citation(s) in RCA: 87] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Revised: 10/13/2014] [Accepted: 10/17/2014] [Indexed: 01/31/2023]
Abstract
The aim of this work was to study the content of tocopherols, sterols, triterpenic and aliphatic alcohols, carotenoids, and volatile compounds in the kernel oils from six walnut (Juglans regia L.) varieties. The levels of β-carotene ranged between 0.22 and 0.62 mg/kg, followed by lutein (0.01-0.06 mg/kg). The total content of tocopherol ranged from 186.5 to 436.2 mg/kg of the extracted oil and the major isoform in all samples was γ-tocopherol. The most abundant phytosterol was β-sitosterol (974-1494 mg/kg) followed by campesterol then Δ-5-avenasterol. The major triterpenic alcohol was cycloartenol (226.4-532.1 mg/kg). Hexacosanol (9.71-28.15 mg/kg) was the major aliphatic alcohol. The detected volatile compounds were pentanal, hexanal, nonanal, 2-decenal and hexanol. The statistical analysis showed significant differences between varieties, which are probably due to genetic factors.
Collapse
Affiliation(s)
- Ikram Bou Abdallah
- Laboratoire de Biochimie des Lipides, Département de Biologie, Université de Tunis El Manar, 2092 Tunis, Tunisia.
| | - Nizar Tlili
- Laboratoire de Biochimie des Lipides, Département de Biologie, Université de Tunis El Manar, 2092 Tunis, Tunisia
| | - Enrique Martinez-Force
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Sevilla, Spain
| | - Ana Gracia Pérez Rubio
- Instituto de la Grasa, Consejo Superior de Investigaciones Científicas (CSIC), 41012 Sevilla, Spain
| | | | - Ali Albouchi
- Institut National de Recherches en Génie Rural, Eaux et Forêts (INRGREF), Tunis, Tunisia
| | - Sadok Boukhchina
- Laboratoire de Biochimie des Lipides, Département de Biologie, Université de Tunis El Manar, 2092 Tunis, Tunisia
| |
Collapse
|
22
|
Herch W, Kallel H, Boukhchina S. Physicochemical properties and antioxidant activity of Tunisian date palm (Phoenix dactylifera L.) oil as affected by different extraction methods. Food Sci Technol 2014. [DOI: 10.1590/1678-457x.6360] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
23
|
Bouabdallah I, Bouali I, Martinez-Force E, Albouchi A, Perez Camino M, Boukhchina S. Composition of fatty acids, triacylglycerols and polar compounds of different walnut varieties (Juglans regiaL.) from Tunisia. Nat Prod Res 2014; 28:1826-33. [DOI: 10.1080/14786419.2014.950573] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
24
|
Arfaoui MO, Renaud J, Ghazghazi H, Boukhchina S, Mayer P. Variation in oil content, fatty acid and phytosterols profile ofOnopordum acanthiumL. during seed development. Nat Prod Res 2014; 28:2293-300. [DOI: 10.1080/14786419.2014.940944] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
25
|
Trabelsi H, Renaud J, Mayer P, Boukhchina S. Triacylglycerol and Glycerophospholipid Identification and Accumulation During Ripening of Pistacia lentiscus L. (Lentisc) Fruit. J AM OIL CHEM SOC 2014. [DOI: 10.1007/s11746-014-2453-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
26
|
Bouali I, Trabelsi H, Herchi W, Martine L, Albouchi A, Bouzaien G, Sifi S, Boukhchina S, Berdeaux O. Analysis of pecan nut (Carya illinoinensis) unsaponifiable fraction. Effect of ripening stage on phytosterols and phytostanols composition. Food Chem 2014; 164:309-16. [PMID: 24996339 DOI: 10.1016/j.foodchem.2014.05.029] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 05/08/2014] [Accepted: 05/11/2014] [Indexed: 11/17/2022]
Abstract
Changes in 4-desmethylsterol, 4-monomethylsterol, 4,4-dimethylsterol and phytostanol composition were quantitatively and qualitatively investigated during the ripening of three varieties of Tunisian-grown pecan nuts (Mahan, Moore and Burkett). These components have many health benefits, especially in lowering LDL-cholesterol and preventing heart disease. The phytosterol composition of whole pecan kernel was quantified by Gas Chromatography-Flame Ionisation Detection (GC-FID) and identified by Gas Chromatography-Mass Spectrometry (GC-MS). Fifteen phytosterols and one phytostanol were quantified. The greatest amount of phytosterols (2852.5mg/100g of oil) was detected in Mahan variety at 20 weeks after the flowering date (WAFD). Moore had the highest level of phytostanols (7.3mg/100g of oil) at 20 WAFD. Phytosterol and phytostanol contents showed a steep decrease during pecan nut development. Results from the quantitative characterisation of pecan nut oils revealed that β-sitosterol, Δ5-avenasterol, and campesterol were the most abundant phytosterol compounds at all ripening stages.
Collapse
Affiliation(s)
- Intidhar Bouali
- Unité de Biochimie des Lipides et des protéines, Département de Biologie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunisia.
| | - Hajer Trabelsi
- Unité de Biochimie des Lipides et des protéines, Département de Biologie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunisia
| | - Wahid Herchi
- Unité de Biochimie des Lipides et des protéines, Département de Biologie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunisia
| | - Lucy Martine
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS, UMR 1324 INRA, Université de Bourgogne, F-21000 Dijon, France
| | - Ali Albouchi
- Laboratoire d'Ecologie Forestière, Institut Nationale des recherches en Génie Rural, Eaux et Forêts, 2080 Ariana, Tunis, Tunisia
| | - Ghaith Bouzaien
- Laboratoire d'Ecologie Forestière, Institut Nationale des recherches en Génie Rural, Eaux et Forêts, 2080 Ariana, Tunis, Tunisia
| | - Samira Sifi
- Office National de l'Huile, Centre Régional du Nord, 1001 Av Mohamed V, Tunis, Tunisia
| | - Sadok Boukhchina
- Unité de Biochimie des Lipides et des protéines, Département de Biologie, Faculté des Sciences de Tunis, 2092 El Manar II, Tunisia
| | - Olivier Berdeaux
- Centre des Sciences du Goût et de l'Alimentation, UMR 6265 CNRS, UMR 1324 INRA, Université de Bourgogne, F-21000 Dijon, France
| |
Collapse
|
27
|
Herchi W, Bahashwan S, Trabelsi H, Boukhchina S, Kallel H, Rochut S, Pepe C. Changes in proximate composition and oil characteristics during flaxseed development. Grasas y Aceites 2014. [DOI: 10.3989/gya.097713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
28
|
Herchi W, Arr^|^aacute;ez-Rom^|^aacute;n D, Trabelsi H, Bouali I, Boukhchina S, Kallel H, Segura-Carretero A, Fern^|^aacute;ndez-Gutierrez A. Phenolic Compounds in Flaxseed: a Review of Their Properties and Analytical Methods. An Overview of the Last Decade. J Oleo Sci 2014; 63:7-14. [DOI: 10.5650/jos.ess13135] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
29
|
Herchi W, Al Hujaili AD, Sakouhi F, Sebei K, Trabelsi H, Kallel H, Boukhchina S. Flaxseed Hull: Chemical Composition and Antioxidant Activity during Development. J Oleo Sci 2014; 63:681-9. [DOI: 10.5650/jos.ess14006] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
30
|
Bouali I, Trabelsi H, Abdallah IB, Albouchi A, Martine L, Grégoire S, Bouzaien G, Gandour M, Boukhchina S, Berdeaux O. Changes in Fatty Acid, Tocopherol and Xanthophyll Contents During the Development of Tunisian-Grown Pecan Nuts. J AM OIL CHEM SOC 2013. [DOI: 10.1007/s11746-013-2340-y] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
31
|
Trabelsi H, Sakouhi F, Renaud J, Villeneuve P, Khouja ML, Mayer P, Boukhchina S. Fatty acids, 4-desmethylsterols, and triterpene alcohols from Tunisian lentisc (Pistacia lentiscus) fruits. EUR J LIPID SCI TECH 2012. [DOI: 10.1002/ejlt.201100146] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
32
|
Herchi W, Bouali I, Bahashwan S, Rochut S, Boukhchina S, Kallel H, Pepe C. Changes in phospholipid composition, protein content and chemical properties of flaxseed oil during development. Plant Physiol Biochem 2012; 54:1-5. [PMID: 22361130 DOI: 10.1016/j.plaphy.2012.02.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2011] [Accepted: 02/03/2012] [Indexed: 05/31/2023]
Abstract
The aim of the present research is to investigate the effect of harvest date on the composition of flaxseed. Samples were collected at regular intervals from 7 to 56 days after flowering (DAF) and analyzed for phospholipid composition, storage protein content and chemical properties. Phospholipid (PL) percentage of the total lipid decreased from 32.72% on the 7th DAF to 2.55% on the 56th DAF. The most phospholipids present in flaxseed were phosphatidylinositol (PI), phosphatidylethanolamine (PE) and lysophosphatidylcholine (LPC) which were highly unsaturated and rich in linolenic and linoleic acids, comprising together 60% of the total fatty acids. Chemical investigation of flaxseed oil showed overall a decrease in UV absorbance (K(232) and K(270)), acid value, free fatty acid content and an increase in peroxide value and storage protein content with development. At full maturity, flaxseed contained 29% proteins on a dry weight basis (DW %).
Collapse
Affiliation(s)
- Wahid Herchi
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, 2092 ELmanar, Tunisia.
| | | | | | | | | | | | | |
Collapse
|
33
|
Herchi W, Sakouhi F, Khaled S, Xiong Y, Boukhchina S, Kallel H, Curtis JM. Characterisation of the glycerophospholipid fraction in flaxseed oil using liquid chromatography–mass spectrometry. Food Chem 2011; 129:437-442. [DOI: 10.1016/j.foodchem.2011.04.096] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Revised: 03/01/2011] [Accepted: 04/28/2011] [Indexed: 10/18/2022]
|
34
|
Sakouhi F, Herchi W, Sbei K, Absalon C, Boukhchina S. Characterisation and accumulation of squalene and n-alkanes in developing Tunisian Olea europaea L. fruits. Int J Food Sci Technol 2011. [DOI: 10.1111/j.1365-2621.2011.02747.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
35
|
Cherif AO, Ben Messaouda M, Kaabi B, Pellerin I, Boukhchina S, Kallel H, Pepe C. Characteristics and pathways of bioactive 4-desmethylsterols, triterpene alcohols and 4α-monomethylsterols, from developing Tunisian cultivars and wild peanut (Arachis hypogaea L.). Plant Physiol Biochem 2011; 49:774-781. [PMID: 21356594 DOI: 10.1016/j.plaphy.2011.02.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Accepted: 02/07/2011] [Indexed: 05/30/2023]
Abstract
Seven 4-desmethylsterols, five triterpene alcohols and three 4α-monomethylsterols were identified by GC-MS during the development of wild peanut, which is Arbi (AraA), and cultivars peanut, which are Trabelsia (AraT) and Chounfakhi (AraC). Our results showed that the maximum level of 4-desmethylsterols (881.07 mg/100 g of oil) was reached at 12 days after flowering (DAF) date of peanut plant in AraA, as well as the highest level of triterpene alcohols (31.51 mg/100 g of oil) was reached at 23 DAF in AraA, whilst, the highest level of 4α-monomethylsterols (15.11 mg/100 g of oil) was reached at 41 DAF in AraC. Herein, the level of triterpene alcohols and 4α-monomethylsterols was overwhelmed by the amount of 4-desmethylsterols at each stage of peanut maturity. Differences were observed in each sterol contents among the studied cultivars and wild one especially in immature stage.
Collapse
Affiliation(s)
- Aicha O Cherif
- Université de Tunis El Manar, Faculté des Sciences de Tunis, Laboratoire de Biochimie, des Lipides et des Protéines, Département de Biologie, Tunis, 2092 El Manar, Tunisia.
| | | | | | | | | | | | | |
Collapse
|
36
|
Herchi W, Sawalha S, Arráez-Román D, Boukhchina S, Segura-Carretero A, Kallel H, Fernández-Gutierrez A. Determination of phenolic and other polar compounds in flaxseed oil using liquid chromatography coupled with time-of-flight mass spectrometry. Food Chem 2011. [DOI: 10.1016/j.foodchem.2010.10.070] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Herchi W, Sakouhi F, Boukhchina S, Kallel H, Pepe C. Changes in Fatty Acids, Tocochromanols, Carotenoids and Chlorophylls Content During Flaxseed Development. J AM OIL CHEM SOC 2011. [DOI: 10.1007/s11746-010-1750-3] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
38
|
Cherif AO, Ben Messaouda M, Kaabi B, Boukhchina S, Pepe C, Kallel H. Comparison of the concentrations of long-chain alcohols (policosanol) in three Tunisian peanut varieties (Arachis hypogaea L.). J Agric Food Chem 2010; 58:12143-12148. [PMID: 21062016 DOI: 10.1021/jf1030345] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Policosanol (PC) is a mixture of high molecular weight aliphatic primary alcohols. Literature about the contents and compositions of PC derived from peanut varieties is scarce. Total PC composition and content in whole peanut grain samples from three varieties of peanut (two cultivars, AraC and AraT, and a wild one, AraA) were identified using a gas chromatograph system coupled with a mass spectrophotometer. The results show that, qualitatively, 21 components of peanut aliphatic alcohols were identified (C14-C30). Besides (C18=), the results exhibited a previously unreported mixture of PC compositions in the peanuts: the unsaturated PC (UPC), which are (C20=), (C21=), (C22=), and (C24=). The main components of total PC in Tunisian peanut kernels are docosanol (C22), (Z)-octadec-9-en-1-ol (C18=), hexadecanol (C16), and octadecanol (C18). Quantitatively, the total PC content of the whole peanut samples varied from 11.18 to 54.19 mg/100 g of oil and was higher than those of beeswax and whole sugar cane, which are sources of dietary supplements containing policosanol.
Collapse
Affiliation(s)
- Aicha O Cherif
- Laboratoire de Biochimie, des Lipides et des Protéines, Département de Biologie, Faculté des Sciences de Tunis, Tunis, 2092 El Manar, Tunisia
| | | | | | | | | | | |
Collapse
|
39
|
Mechergui K, Coelho JA, Serra MC, Lamine SB, Boukhchina S, Khouja ML. Essential oils of Origanum vulgare L. subsp. glandulosum (Desf.) Ietswaart from Tunisia: chemical composition and antioxidant activity. J Sci Food Agric 2010; 90:1745-1749. [PMID: 20564436 DOI: 10.1002/jsfa.4011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND Characterisation of the essential oils from O. glandulosum collected in three locations of Tunisia, chemical composition and the evaluation of their antioxidant activities were carried out. RESULTS The essential oils from Origanum vulgare L. subsp. glandulosum (Desf.) Ietswaart collected from three localities of north Tunisia-Krib, Bargou and Nefza-were obtained in yields of 2.5, 3.0 and 4.6% (v/w), respectively. The essential oils were analysed by GC and GC/MS and assayed for their total phenolics content, by the Folin-Ciocalteu method, and antioxidant effectiveness, using the 2,2-diphenyl-1-picrylhydrazil (DPPH) radical scavenging assay. The main components of these essential oils, from Nefza, Bargou and Krib, were p-cymene (36%, 40% and 46%), thymol (32%, 39% and 18%), gamma-terpinene (24%, 12% and 16%) and carvacrol (2%, 2% and 15%), respectively). The ability to scavenge the DPPH radicals, expressed by IC(50), ranged from 59 to 80 mg L(-1). The total phenolic content, expressed in gallic acid equivalent (GAE) g kg(-1) dry weight, varied from 9.37 to 17.70 g kg(-1) dw. CONCLUSIONS A correlation was identified between the total phenolic content of the essential oils and DPPH radical scavenger capacity. The occurrence of a p-cymene chemotype of O. glandulosum in the northern region of Tunisia is demonstrated.
Collapse
Affiliation(s)
- Kaouther Mechergui
- Unité de Biochimie des lipides et des protéines, Faculté des Sciences de Tunis, Campus Universitaire EL Manar, Tunis 2092, Tunisia
| | | | | | | | | | | |
Collapse
|
40
|
Cherif AO, Trabelsi H, Ben Messaouda M, Kâabi B, Pellerin I, Boukhchina S, Kallel H, Pepe C. Gas chromatography-mass spectrometry screening for phytochemical 4-desmethylsterols accumulated during development of Tunisian peanut kernels (Arachis hypogaea L.). J Agric Food Chem 2010; 58:8709-8714. [PMID: 20681661 DOI: 10.1021/jf101254u] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
4-Desmethylsterols, the main component of the phytosterol fraction, have been analyzed during the development of Tunisian peanut kernels ( Arachis hypogaea L.), Trabelsia (AraT) and Chounfakhi (AraC), which are monocultivar species, and Arbi (AraA), which is a wild species, by gas chromatography-mass spectrometry. Immature wild peanut (AraA) showed the highest contents of beta-sitosterol (554.8 mg/100 g of oil), campesterol (228.6 mg/100 g of oil), and Delta(5)-avenasterol (39.0 mg/100 g of oil) followed by peanut cultivar AraC with beta-sitosterol, campesterol, and Delta(5)-avenasterol averages of 267.7, 92.1, and 28.6 mg/100 g of oil, respectively, and similarly for AraT 309.1, 108.4, and 27.4 mg/100 g of oil, respectively, were found. These results suggest that, in immature stages, phytosterol contents can be important regulator factors for the functional quality of peanut oil for the agro-industry chain from plant to nutraceuticals.
Collapse
Affiliation(s)
- Aicha O Cherif
- Laboratory of Biochemistry of Lipids and Proteins, Department of Biology, Sciences University of Tunis, 2092 El Manar, Tunisia.
| | | | | | | | | | | | | | | |
Collapse
|
41
|
Sakouhi F, Absalon C, Kallel H, Boukhchina S. Comparative analysis of triacylglycerols from Olea europaea L. fruits using HPLC and MALDI-TOFMS. EUR J LIPID SCI TECH 2010. [DOI: 10.1002/ejlt.200900079] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
42
|
Sakouhi F, Boukhchina S, Absalon C, Fouquet E, Kallel H. Policosanol characterization and accumulation during ripening of Tunisian
Olea europaea
L. fruits. EUR J LIPID SCI TECH 2010. [DOI: 10.1002/ejlt.200900076] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Faouzi Sakouhi
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, El Manar, Tunisie
| | - Sadok Boukhchina
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, El Manar, Tunisie
| | - Christelle Absalon
- Centre d'Etude Structurale et d'Analyse des Molécules Organiques, Institut des Sciences Moléculaires, Université de Bordeaux, Bordeaux, France
| | - Eric Fouquet
- Centre d'Etude Structurale et d'Analyse des Molécules Organiques, Institut des Sciences Moléculaires, Université de Bordeaux, Bordeaux, France
| | - Habib Kallel
- Laboratoire de Biochimie des Lipides, Département de Biologie, Faculté des Sciences de Tunis, El Manar, Tunisie
| |
Collapse
|
43
|
Cherif A, Belkacemi K, Kallel H, Angers P, Arul J, Boukhchina S. Phytosterols, unsaturated fatty acid composition and accumulation in the almond kernel during harvesting period: Importance for development regulation. C R Biol 2009; 332:1069-77. [DOI: 10.1016/j.crvi.2009.09.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2009] [Revised: 09/07/2009] [Accepted: 09/24/2009] [Indexed: 11/26/2022]
|
44
|
Herchi W, Harrabi S, Sebei K, Rochut S, Boukhchina S, Pepe C, Kallel H. Phytosterols accumulation in the seeds of Linum usitatissimum L. Plant Physiol Biochem 2009; 47:880-885. [PMID: 19616960 DOI: 10.1016/j.plaphy.2009.07.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2009] [Revised: 06/28/2009] [Accepted: 07/01/2009] [Indexed: 05/28/2023]
Abstract
A comparative study was performed to determine the free sterols content and composition during the development of three varieties of linseed (H52, O116 and P129). Seed samples were collected at regular intervals from 7 to 60 days after flowering (DAF). Ten compounds were identified: cholesterol, campesterol, brassicasterol, stigmasterol, beta-sitosterol, Delta5-avenasterol, cycloartenol; 24-methylene cycloartanol, obtusifoliol, citrostadienol. The maximum level of 4-desmethylsterols (1,515 mg/100g oil) was reached at 7 DAF in P129 variety. H52 had the highest level of 4-4 dimethylsterols (355 mg/100g oil) at 28 DAF. The greatest amount of 4-monomethylsterols (35 mg/100g oil) was detected in H52 at 14 DAF. During linseed development, beta sitosterol (830 mg/100g oil) was the major 4-desmethylsterols, followed by campesterol (564 mg/100g oil) and stigmasterol (265 mg/100g oil). Some of these compounds followed nearly the same accumulation pattern during linseed maturation.
Collapse
Affiliation(s)
- Wahid Herchi
- Laboratoire de Biochimie des lipides, Département de Biologie, Faculté des sciences de Tunis, 2092 ELmanar-Tunisie, Tunisia.
| | | | | | | | | | | | | |
Collapse
|
45
|
Sakouhi F, Absalon C, Sebei K, Fouquet E, Boukhchina S, Kallel H. Gas chromatographic–mass spectrometric characterisation of triterpene alcohols and monomethylsterols in developing Olea europaea L. fruits. Food Chem 2009. [DOI: 10.1016/j.foodchem.2009.01.094] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
46
|
|
47
|
Herchi W, Harrabi S, Rochut S, Boukhchina S, Kallel H, Pepe C. Characterization and quantification of the aliphatic hydrocarbon fraction during linseed development ( Linum usitatissimum L.). J Agric Food Chem 2009; 57:5832-5836. [PMID: 19492811 DOI: 10.1021/jf9004884] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Changes in hydrocarbon composition were investigated during maturation of three varieties of linseed (H52, O116, and P129) cultivated in Tunisia. The hydrocarbon fraction of the three linseed oil samples was found to contain mainly n-alkanes and squalene. The greatest decrease of these components occurred between 7 and 21 days after flowering (DAF); thereafter, the changes were slight. At 7 DAF, P129 had a significantly higher level of squalene (27.24 mg/100 g of oil) than H52 (3.36 mg/100 g of oil), but from this date until 21 DAF squalene decreased much more actively in P129, resulting in similar levels in H52 (0.57 mg/100 g of oil) and P129 (0.52 mg/100 g of oil) at full maturity. In three varieties of linseed, 13 n-alkanes were detected ranging from C(22) to C(34) carbon atoms. The n-alkane composition of linseed oil was influenced by the ripening stage of seeds. At 7 DAF, C29 was the most predominant hydrocarbon (19.84 mg/100 g of total oil), followed by C(27) (11.82 mg/100 g) and C(25) (11.28 mg/100 g). C(29) exhibited the most significant decrease from 7 to 21 DAF, as a result C(27) being the most significant n-alkane component for the remainder of the period. At full maturity, the content of total n-alkanes in three varieties of linseed ranged from 4.0 to 4.26 mg/100 g of oil.
Collapse
Affiliation(s)
- Wahid Herchi
- Département de Biologie, Faculté des sciences de Tunis, Laboratoire de Biochimie des lipides, 2092 ELmanar, Tunisia.
| | | | | | | | | | | |
Collapse
|
48
|
Sakouhi F, Absalon C, Harrabi S, Vitry C, Sebei K, Boukhchina S, Fouquet E, Kallel H. Dynamic accumulation of 4-desmethylsterols and phytostanols during ripening of Tunisian Meski olives (Olea europea L.). Food Chem 2009. [DOI: 10.1016/j.foodchem.2008.06.068] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
49
|
Sakouhi F, Harrabi S, Absalon C, Sbei K, Boukhchina S, Kallel H. α-Tocopherol and fatty acids contents of some Tunisian table olives (Olea europea L.): Changes in their composition during ripening and processing. Food Chem 2008; 108:833-9. [DOI: 10.1016/j.foodchem.2007.11.043] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2007] [Revised: 11/18/2007] [Accepted: 11/19/2007] [Indexed: 11/30/2022]
|
50
|
Sebei K, Boukhchina S, Kallel H. [Evolution of tocopherols in relation of unsaturated fatty acids during maturation of seeds of rapeseed (Brassica napus L.)]. C R Biol 2007; 330:55-61. [PMID: 17241948 DOI: 10.1016/j.crvi.2005.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2005] [Revised: 12/16/2005] [Accepted: 12/20/2005] [Indexed: 10/25/2022]
Abstract
The oil content increases during the maturation of seeds (rise of 30%), but decreases at the end of seed maturation. Differences between SDS-PAGE total protein profiles were shown. Polyunsaturated fatty acids contents increase during middle-maturation. Contents of alpha and gamma tocopherols increase with time. This increase is explained by the fact that tocopherols participate actively in the protection of membranes whose phospholipids consist of polyunsaturated fatty acids (PUFAs).
Collapse
Affiliation(s)
- Khaled Sebei
- Laboratoire de biochimie des lipides et interactions avec les macromolécules, faculté des sciences de Tunis, université de Tunis-El-Manar, 2092 Tunis, Tunisie.
| | | | | |
Collapse
|