khodir madani

University Abderahmane Mira, Bejaia, Bbbs Lab, Emeritus

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Papers by khodir madani

Effect of storage on bioactivity of an Algerian spice “paprika”: optimization of phenolic extraction and study of antioxidant and antibacterial activities

Food Science and Biotechnology

Ethnobotanical Study of the Most Lamiaceae Used as Medicinal and Culinary Plants by the Population of Bejaia Province, Algeria

Jordan Journal of Pharmaceutical Sciences

This study was carried out to safeguard ancestral knowledge about most Lamiaceae plants used by t... more This study was carried out to safeguard ancestral knowledge about most Lamiaceae plants used by the population of the Bejaia region (north-eastern Algeria) for medicinal and food purposes. Using 200 questionnaire sheets, ethnobotanical surveys were performed between February and July 2020. The data were analyzed by calculating quantitative indices such as Relative Citation Frequency (RFC), Plant Part Value (PPV) use index, and Fidelity Level (FL). It was shown that women hold ethnobotanical information (52%) more than men (48%), older persons are expected to provide more reliable information and the majority of users have a university level. Otherwise, herbal medicine is used more in rural areas than in urban and 55% of the studied plants are cultivated while 45% are wild. The leaves are the most used part (PPV = 0.592) and the infusion method was the most commonly used (69.7%). Ethnobotanical analysis revealed that Mentha spicata L. (RFC=0.44), Lavendula stoechas L. (RFC=0.215), an...

Valorization of apricot, melon, and watermelon by-products by extracting vegetable oils from their seeds and formulating margarine

OCL

Vegetable oils extracted from seeds and oleaginous fruits are a substantial source of bioactive c... more Vegetable oils extracted from seeds and oleaginous fruits are a substantial source of bioactive compounds. In this study, oils of some fruit by-products were investigated and their composition and properties were compared. Apricot (ASO), melon (MSO), and watermelon (WSO) seed oils were extracted by cold pressing. The physico-chemical parameters and the contents of pigments were assessed using standard methods. The values of the physico-chemical parameters revealed the purity of the oils and it was recorded that the WSO has the best contents of chlorophylls and carotenoids, which were 12.43 ± 0.71 mg/kg of oil, and 1.35 ± 0.02 mg equivalent of β-carotene/g oil, respectively. In addition, the oils were analyzed by gas chromatography and their major fatty acids were linoleic, oleic, palmitic, and stearic. The ASO revealed the highest antioxidant activity in the quenching of 1,1-diphenyl-2-picrylhydrazyl (DPPH) with inhibition percentage of 89.2 ± 2.3 after 30 minutes of contact. Likewi...

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Development and characterization of sauces formulation based on tomato and garlic powders

The North African Journal of Food and Nutrition Research

Background: Consumers have increasingly high demands in terms of taste, color and texture; they e... more Background: Consumers have increasingly high demands in terms of taste, color and texture; they expect foods to be safe, healthy and nutritious, more appealing in color, texture and taste, and ready-to-use products such as sauces. Aim: The aim of this study was to formulate sauces with tomato (TP) and garlic (GP) powders resulted from conventional and microwave dryings. Material and Methods: TP was used at 0, 5, 10 and 15% in the formulation of tomato sauce and GP at 0, 5, and 20% in the formulation of garlic sauce. For studying the effects of these powders on quality of sauces, some properties such as pH, Brix, apparent viscosity, mesophilic aerobic total flora (MATF), total coliforms,mold and yeast colony count and sensory evaluation were determined. Results: The results showed that the increase in the powders proportions increased pH from 5.32 to 5.72 for garlic sauces but decreased it from 5.42 to 5.04 for tomato sauces. However, the Brix values increased from 12.8 (5% tomato sa...

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Ethnobotanical survey of medicinal plants of bejaia localities from algeria to prevent and treat coronavirus (COVID-19) infection shortened title: phytomedicine to manage COVID-19 pandemic

Advances in Traditional Medicine

The propagation of the COVID-19 pandemic in Algeria has pushed the population searching alternati... more The propagation of the COVID-19 pandemic in Algeria has pushed the population searching alternative therapies as preventives and treatment selections. The use of medicinal plants is a promising alternative solution to strengthen immunity and chase COVID-19. The aim of this study was to carry out an ethnobotanical survey in the Bejaia department (Algeria) to identify the plants used during the current pandemic. The study was conducted from February to May 2021. The interviews were conducted with 400 informants in order to assemble socio-demographic and floristic features of the respondents and used plants. The data analysis was performed by means of Relative Frequency of Citation (RFC), Family Importance Value (FIV), and Plant Part Value (PPV). 23 medicinal plants belonging to 12 families were adopted by the population of the Bejaia localities to prevent and treat COVID-19 infection. Aloysia citriodora Palau (RFC = 0.248), Mentha spicata L. (RFC = 0.145), Citrus limon (L.) Osbeck (RFC = 0.135), Thymus vulgaris L. (RFC = 0.118), Zingiber officinalis Roscoe (RFC = 0.09), Artemisia herba-alba Asso (RFC = 0.065), and Eucalyptus globules labill (RFC = 0.063) were the most cited species. The leaves of these plants which are used (65%) in the form of infusion (43.6%) are administered orally (95.03%) to treat and relieve certain symptoms of COVID-19. The current survey is the only one in the Bejaia department regarding the exploitation of medicinal herbs in the COVID-19 pandemic. These plants can be used as a platform to manage COVID-19.

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Correction to: Chemical Composition and Biological Activities of Mentha Species

IntechOpen, Mar 15, 2017

Phenolic compounds and antioxidant activity are differentially affected by drying processes in celery, coriander and parsley leaves

International Journal of Food Science & Technology, 2022

Setting up a diagram process for the elaboration of a new plant‐based beverage from Pinus halepensis seeds: Selection of unit operations and their conditions

Journal of Food Process Engineering, 2021

Aleppo pine seeds are a potential candidate for the production of nondairy milk due to their high... more Aleppo pine seeds are a potential candidate for the production of nondairy milk due to their high protein (26%) and lipid (37%) content and their availability. For the first time, this study presents the implementation of a manufacturing scheme from seeds to final product, including pre‐extraction, extraction, and post‐extraction (physical and microbiological stabilization), using a 2(7‐4) fractional factorial screening design. The seven factors were seed soaking time, grinding time, temperature and seed/water ratio during extraction, xanthan gum concentration, homogenization pressure, and pasteurization temperature. Beverage quality analysis consisted of measurements of chemical composition, color, stability, and rheological behavior. The results of experimental design showed that the dry matter as well as the lipid and protein contents increased significantly by increasing the ratio (grain/water) and the grinding time. On the other hand, the extraction temperature led to a better ...

Polyphenols, cytotoxicity and enzymatic activities of three Ericaceae species from Algeria

info:eu-repo/semantics/nonPublishe

精油組成,Eucalyptus globulus果実のhydrodistillated抽出物の抗菌および抗酸化活性【Powered by NICT】

Industrial Crops and Products, 2016

Phenolic profile, antibacterial, neuroprotective and cytotoxic properties of three algerian Mentha species

info:eu-repo/semantics/nonPublishe

Convective and microwave drying of coriander leaves: Kinetics characteristics and modeling, phenolic contents, antioxidant activity, and principal component analysis

Journal of Food Process Engineering, 2021

In this study, coriander leaves were subjected to two different drying techniques: convective (40... more In this study, coriander leaves were subjected to two different drying techniques: convective (40, 80, and 120°C) and microwave (100, 500, and 1,000 W). The effects of both processes on the kinetic parameters variation, modeling, and phytochemical quality were studied. Kinetic parameters variation showed that time reduction (2.53 min), high drying rate (3.08 kg water/kg dm min), and high diffusivity (1.21 × 10−10 m2/s) were obtained during microwave drying. For energy consumption, an opposite trend was observed between the variation in the specific electrical energy consumption (SECe), which is significant during convective drying (208.33 × 10+07 MJ/kg H2O), and the energy efficiency (EE), which is obtained during microwave one (12.16 × 10−03%). The kinetic data modeling done on 23 empirical models allowed us to choose the Sledz model as the best describing the drying kinetics of coriander since it presented better predictive performances with .9947 < adjusted R2 < .9995, 0.00...

Citrus × paradisi essential oil as a promising agent for margarine storage stability: Composition and antioxidant capacity

Journal of Food Processing and Preservation, 2021

Response surface methodology and UPLC-QTOF-MSE analysis of phenolic compounds from grapefruit (Citrus✕ paradisi) by-products as novel ingredients for new antioxidant packaging

LWT, 2021

Abstract The present work reports an experimental study on the optimization of phenolic compounds... more Abstract The present work reports an experimental study on the optimization of phenolic compounds extraction from Citrus ✕ paradisi peels and the development of active packaging. Response surface methodology (RSM) was applied to investigate the effect of microwave-assisted extraction (MAE) for the recovery of total phenolic compounds (TPC). The TPC in the optimized extract were 31.10 mg gallic acid equivalent/100 g of dry weight (mg GAE/100 g dw) with strong antioxidant capacity. The bioactive compounds in the optimized extract were determined by ultrahigh performance liquid chromatography coupled to quadrupole time-of-flight with high energy mass spectrometry (UPLC-QTOF-MSE). Forty-five compounds were detected and qualified. The optimized extract obtained by MAE was used as an active antioxidant in multilayer food packaging films. The multilayer low-density polyethylene (LDPE)/polyethylene terephthalate (PET) containing 10% of MAE optimized extract provided the most antioxidant power acting as a free radical scavenger.

Discrimination of Mentha species grown in different geographical areas of Algeria using 1H-NMR-based metabolomics

Journal of Pharmaceutical and Biomedical Analysis, 2020

1 H-NMR-based metabolomics have been applied to identify potential NMR-markers and biomarkers cap... more 1 H-NMR-based metabolomics have been applied to identify potential NMR-markers and biomarkers capable of distinguishing, qualifying and classifying three Mentha species:-Mentha pulegium L., Mentha × rotundifolia (L.) Huds., Mentha spicata L., and their ecotypes. Samples of the 3 species were collected in seven different locations in Algeria, with the aim to establish a quality control protocol based on the use of NMR fingerprint profiles of polar extracts. NMR data indicate that the identification of the Mentha genus can be confirmed by the presence of the doublet proton signals with identical coupling constants at ı 7.49 (d, 15.9 Hz) and ı 6.29 (d, 15.9 Hz); these correspond to the protons of the double-bond conjugated to the ester group of rosmarinic acid, a bioactive compound found in all three species. Differences in NMR proton chemical shifts and/or signal intensities were clearly demonstrated on the orthogonal projections to latent structures discriminating analysis (OPLS-DA). Several potential biomarkers discriminating the three Mentha species were originated using S-plots, loading score plots, NMR data analysis and literature search. These discriminating signals point to glycosylated flavonols, oxygenated terpenoids and hydrocarbon terpenoids to distinguish M. pulegium, M. × rotundifolia and M. spicata, respectively. Within the same species, Principal Component Analysis (PCA) scores clearly discriminated the metabolite content according to regions in which the plants were grown. The 6 zones in which Mentha pulegium samples were harvested were clearly separated along either or both PC1 and PC2; by contrast, the harvesting locations were divided into two groups along PC1 for both M. × rotundifolia and M. spicata. The total antioxidant activity of the Mentha species was impacted by the abiotic factors of the different regions.

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RP-HPLC-PDA-ESI-MS/MS screening of bioactive compounds from Degla-Beida dates: Conventional and green extraction technologies

The Annals of the University Dunarea de Jos of Galati Fascicle VI – Food Technology, 2020

Date fruits have vital therapeutic properties, in the way that they represent an inexhaustible so... more Date fruits have vital therapeutic properties, in the way that they represent an inexhaustible source of bioactive compounds such as polyphenols. Therefore, the objective of this work was to evaluate the phytocomposition by High Performance Liquid Chromatography (RP-HPLC-PAD-ESI-MS/MS) of the optimized microwaveassisted extraction (MAE) phenolic extract by using the response surface methodology (RSM) compared to the ultrasound-assisted and conventional extractions (UAE and CE), and to test its antioxidant activity in vitro. The resulting regression model indicated that a quadratic polynomial model was best suited for the spectrophotometrically determined total phenolics. The maximum total phenolic content, TPC, (4.27±0.09 mg GAE/g DW) was obtained with a 50% (v/v) ethanol's concentration, a 700 W microwave power and an extraction time of 2.42 minutes. HPLC analysis revealed the presence of organic sugars and acids, nucleoside, carotenoids, proanthocyanidins, lignans, flavonols, flavones, saponin and sterol glucosides. The MAE phenolic extract showed 58.72±0.29% DPPH radical scavenging activity and a 1.88±0.09 mg AscAE/mL reducing power.

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Impact of the extraction method on physico-chemical proprieties, phytochemicals and biological activity of sesame seeds oil

The Annals of the University Dunarea de Jos of Galati Fascicle VI – Food Technology, 2020

This study aimed at characterizing oil extracted from roasted and unroasted sesame seeds (Sesamum... more This study aimed at characterizing oil extracted from roasted and unroasted sesame seeds (Sesamum indicum L.) following either Soxhlet using hexane as the solvent or cold pressing. We obtained an inverse relationship between oil yield and seed moisture content. Seed roasting as well as Soxhlet extraction improved oil yield. Specific absorptivity (at 232 and 270 nm) increased with heating treatment. Refractive values of the different oils were about 1.464. Peroxide value was 7.6 to 9.6 meq O 2 /kg, iodine value was 107-109g I 2 /100g, saponification value obtained was 188 to 190 mg KOH/g, oleic and linoleic acids were about 42 and 40%, respectively. Total phenolic contents were 8 (USO-CE) to 17 mg/100 ml (RSO-SE). Roasting process increased the antioxidant contents and activities (DPPH scavenging and reducing power). The antibacterial activity of sesame oil revealed the inhibition of Escherichia coli and Pseudomonas aeruginosa growth. Sesame oil presents interesting physicochemical characteristics and antioxidant properties that can be improved by roasting the seeds before extraction.

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Antioxidant activity, carotenoids, chlorophylls and mineral composition from leaves of Pallenis spinosa: an Algerian medicinal plant

Journal of Complementary and Integrative Medicine, 2019

Background Plant and medicinal herbs are important sources of bioactive compounds and minerals th... more Background Plant and medicinal herbs are important sources of bioactive compounds and minerals that can play a role in preventing various diseases and they are considered a factor indispensable for the proper functioning of the human body. Methods We investigated the content of carotenoids and chlorophylls of leaves from Pallenis spinosa (P. spinosa), as well as their antioxidant activity and mineral composition then, we optimized the solvent extraction for the recovery of total carotenoids and chlorophylls using spectrophotometric method. Finally, we tested the antioxidant activity of the optimized extract by three assays (DPPH, ABTS and FRAP) and we determined the mineral composition by Emission Spectrometer Induced Couple Plasma (ICP). Results Carotenoid (CART), chlorophylls (CHLa + b), chlorophyll a (CHLA), chlorophyll b (CHLB) contents were about 36.337 ± 0.312; 347.769 ± 6.326; 224.286 ± 5.601; 123.483 ± 1.339 mg/100 g dw, respectively. We revealed an interesting antioxidant c...

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HPLC-DAD-MS/MS profiling of phenolics from different varieties of peach leaves and evaluation of their antioxidant activity: A comparative study

International Journal of Mass Spectrometry, 2019

Peach (Prunus persica L.) leaves have been traditionally used in folk medicine for their several ... more Peach (Prunus persica L.) leaves have been traditionally used in folk medicine for their several biological activities that are correlated to the presence of polyphenolic compounds. The aim of the present study is to characterize phenolic compounds present in foliar extracts of seven peach varieties cultivated in Algeria by HPLC-MS and the study of their antioxidant potential. Antioxidant capacity of the foliar extracts was assessed by several tests acting by different mechanisms: Oxygen Radical Absorbance Capacity (ORAC), 2,2-DiPhenyl-PicrylHydrazyl radical (DPPH), 2,-Azinobis(3-ethylBenzoThiazoline-6-Sulfonic acid) (ABTS), Potassium Ferricyanide Reducing Antioxidant Power (PFRAP) and Iron Chelating Activity (ICA). Fourteen phenolic compounds were identified in the peach leaf extracts including cinnamic acids and flavonols. Flavonols represent the main class of phenolic compounds accounting for an average percentage higher than 95% of the overall phenolics. Kaempferol 3-glucoside is the main phenolic compound in all peach leaf extracts with an average percentage higher than 32% followed by quercetin 3-glucoside (17.9%), quercetin 3galactoside (17.1%) and kaempferol 3-galactoside (15.4%). Results showed that variety significantly affected the phenolic content of peach leaves. Romea and Red Top varieties present the higher concentration in phenolic compounds, Dixired, Flavorcrest and Tebana a moderate one and, Cardinal and Spring Belle the lowest content. The data obtained with DPPH, ABTS, ORAC and PFRAP assays showed that polyphenols present in the all foliar peach extracts were potent antioxidative agents. Except for ICA assay, good positive correlations were found between phenolic concentration and the different measured antioxidant capacities. That means that phenolic compounds present in peach leaf cultivars were major contributors of reducing power and scavenging radicals capacities (DPPH, ABTS and ORAC). All these results allowed us to conclude that peach leaves are a good source of phenolics with active properties, as antioxidant ones.

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Prevention of 7-ketocholesterol-induced side effects by natural compounds

Critical Reviews in Food Science and Nutrition, 2018

Cholesterol oxidation products, also named oxysterols, can be formed either by cholesterol auto-o... more Cholesterol oxidation products, also named oxysterols, can be formed either by cholesterol auto-oxidation, enzymatically or both. Among these oxysterols, 7-ketocholesterol (7KC) is mainly formed during radical attacks that take place on the carbon 7 of cholesterol. As increased levels of 7KC have been found in the tissues, plasma and/or cerebrospinal fluid of patients with major diseases, especially age related diseases (cardiovascular diseases, eye diseases, neurodegenerative diseases), some cancers, and chronic inflammatory diseases, it is suspected that 7KC, could contribute to their development. Since 7KC, provided by the diet or endogenously formed, is not or little efficiently metabolized, except in hepatic cells, its

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