CRTAA DSpace

Bienvenue sur la Bibliothèque Numérique du Centre de Recherche en Technologies Agro-Alimentaires (CRTAA).

Cette plateforme permet de préserver, valoriser et diffuser les productions scientifiques et techniques du CRTAA, tout en facilitant leur accès à la communauté scientifique nationale et internationale.

Vous y trouverez notamment :

  • Des articles scientifiques et publications de recherche.
  • Actes de conférence et de colloques.
  • Des rapports techniques et documents institutionnels.
  • Des mémoires, thèses et travaux académiques.

Communities in DSpace

Select a community to browse its collections.

Recent Submissions

  • Thumbnail Image
    Item type: Item ,
    Improving camphor solubility and stability through α-cyclodextrin encapsulation: characterization, cytotoxicity investigation, and bull sperm preservation evaluation
    (Journal of Inclusion Phenomena and Macrocyclic Chemistry, 2025-05-22) Hayet Ahlem Lezrag · Sofiane Fatmi  · Lamia Taouzinet · Zahra Toutou · Katarzyna Pokajewicz  · Farid Ait Merzeg  · Mohamed Skiba  · Piotr P. Wieczorek  · Mokrane Iguerouada
    Camphor, a crystalline white substance with diverse biological benefits, faces limitations in human health applications due to its volatile and hydrophobic nature, which impedes its solubility and stability. This study addresses these challenges by investigating the encapsulation of camphor within various cyclodextrins (CDs), particularly focusing on α-cyclodextrin (α-CD), to enhance its solubility and protect it from environmental degradation. The formation of camphor-CD inclusion complexes was confirmed through a combination of infrared spectroscopy (FTIR), X-ray diffraction (XRD), and ther mogravimetric analysis (TGA). Among the CDs tested, α-CD demonstrated the highest efficiency, achieving a solubility coefficient of 23.38 M⁻¹ and inclusion efficiencies of 24.37% and 34.63% for 1:1 and 1:2 stoichiometries, respectively. Biological evaluations revealed that the Camphor/α-CD complex exhibited significant preservative effects on sperm motil ity at low concentrations while demonstrating a toxic effect on red blood cells. Additionally, the complex showed promis ing radical scavenging activity as assessed by the 2,2-diphenyl-1-picrylhydrazyl (DPPH) assay. These findings suggest that camphor, when complexed with α-CD, holds considerable potential for novel applications in drug delivery and cryopreservation technologies.
  • Thumbnail Image
    Item type: Item ,
    Optimizing adsorption efficiency: A novel application of SVM_Boosting_IGWO for methylene blue dye removal using low-cost fruit peels adsorbents
    (Chemometrics and Intelligent Laboratory Systems, 2025-02-10) Nasma Bouchelkia , Hichem Tahraoui , Kheira Benazouz , Amal Mameri , Reguia Boudraa , Hamza Moussa , Nadia Hamri , Ryma Merdoud , Hayet Belkacemi , Abdelhalim Zoukel , Abdeltif Amrane , Mohammed Kebir , Lotfi Mouni
    In this work, the potential for employing orange peels (OP) and potato peels (PP) as biosorbents to remove the methylene blue dye (MB) from aqueous solutions is studied. Several physicochemical methods, such as FTIR, SEM-EDX, X-ray diffraction, and pH point of zero charge measurement, were used to analyze the adsorbents. FTIR analysis revealed changes in peak intensities after dye adsorption. SEM analysis confirmed the presence of starch in the PP adsorbent, while no apparent pore structure was observed in the OP adsorbent. EDX analysis showed that carbon and oxygen were the main components on the surfaces of OP and PP. X-ray diffraction patterns indicated that both adsorbents were amorphous materials. The impact of different factors, including adsorbent dosage, contact time, temperature, initial dye concentration, pH and particle size, on the biosorption process was studied. Kinetic studies revealed that equilibrium was reached within a few minutes of contact, and the MB removal followed the pseudo-second-order model.Furthermore, a novel predictive model combining Support Vector Machine (SVM) with Boosting and the Improved Grey Wolf Optimizer (IGWO) algorithm was developed. The SVM-IGWO-Boosting model exhibited excellent performance in predicting methylene blue adsorption, demonstrating perfect correlation and low prediction error. The IGWO optimization approach effectively optimized the input parameters for the adsorbents, resulting in excellent agreement between exper imental and predicted values. Moreover, OP showed higher efficiency in removing methylene blue compared to PP, with a maximum capacity of 111.75 mg/g for OP and 96.67 mg/g for PP using IGWO. The use of orange peels and potato peels as agricultural waste for methylene blue removal offers an efficient and sustainable solution. The SVM-IGWO-Boosting predictive model, in conjunction with the IGWO optimization approach, provides a promising tool for predicting and optimizing the adsorption efficiency of MB adsorbents. These findings present valuable prospects for real-world applications requiring accurate and reliable predictions.
  • Thumbnail Image
    Item type: Item ,
    Prevalence of childhood overweight – obesity and associated factors: A school‑based, cross‑sectional study northern Algeria
    (Nutrire, 2025-05-22) Salim Zaabar  · Mohammed Khalil Mellal  · Mustapha Aourir · Belkacem Zennache  · Sofiane Boudalia · Zoubeida Meghlaoui · Lynda Messaoudene · Yasmine Brahimi  · Nassim Madi · Khokha Mouhoubi  · Amina Abbou  · Lamia Medouni  · Zahia Brara · Sabiha Bechir  · Khodir Madani
    Abstract Purpose To determine the prevalence of overweight/obesity and stunting among primary schoolchildren, and the associated factors. Methods This is a cross-sectional study conducted from February to September 2023 across 577 primary schools in Bejaia Province, Northern Algeria. Schoolchildren’s anthropometric measurements (weight and height) were obtained through direct physical assessments and were subsequently used to classify their weight and growth status according to WHO growth refer ence standards. Dietary habits school environment, and physical activity levels were obtained using survey questionnaires. Multivariate logistic regression analyses were performed to assess the associations between overweight/obesity and factors including dietary habits, physical activity, and the school environment. Results Overall, 446 (77.3%) primary schools participated in the study yielding a sample of 14,283 schoolchildren aged 9–13 years. Boys had a higher prevalence of obesity and severe obesity compared to girls. Overweight prevalence peaked at age 10 in girls (23.11%, 95% CI: 21.42–24.85%) while obesity peaked in boys at age 9 (18.80%, 95% CI: 11.14–28.76%). Obesity was strongly associated with stunting, particularly in boys (aOR=5.78, 95% CI: 4.41–7.66, p<0.001). Engagement in sportive activities was associated with lower overweight/obesity prevalence, while frequent snacking showed positive associations. Overweight and obesity were more prevalent in urban and suburban schools compared to rural settings. Conclusion This study reveals concerning patterns of childhood overweight/obesity and stunting in northern Algeria, high lighting the urgent need for targeted public health interventions addressing nutritional education and physical activity promotion.
  • Thumbnail Image
    Item type: Item ,
    Assessment of the Antibacterial Potential and Safety Profile of Lactic Acid Bacteria Strains Isolated from Algerian Raw Milk
    (Asian journal of Dairy and food Research, 2025-05-22) Mohamed Amine Hammadeche , Nassim Madi , Karima Aoues , Amel Kaced , Amel Doumandji
    Background: Raw milk harbors most lactic acid bacteria. Research in this field is a hot topic with the aim of using them for probiotic and/or technological applications. Methods: Lactic acid bacteria were isolated on MRS and M17 media. Antibacterial activity was tested by the direct method based on spots against four food-borne pathogens. Isolates demonstrating high antibiosis activity were selected following a statistical analysis (Two-way-ANOVA) and identified by MALDI-TOF MS. The safety profile was assessed by sensitivity to antibiotics, hemolytic activity, the ability to produce gelatinase and DNase and finally, the aptitude of lactic strains to form biogenic amines. Result: A total of 172 strains were isolated, of which 103 were presumed to be lactic acid bacteria. The results of the antibacterial activity demonstrated that 82 strains exerted an antagonistic effect against all reference strains and 12 of these showed significant antibiosis activity. Selected strains were identified as Lactococcus lactis ssp lactis (50%) and Enterococcus faecium (50%). All strains of Lactococcus lactis ssp lactis (LMMDR33, LMMDR06, LMMDR22, LMMDR26, LMMDR05 and LMMDR23) and strains LMMDR27, LMMDR16 and LVBBR13 of Enterococcus faecium demonstrated a good safety profile. They were retained for valorization
  • Thumbnail Image
    Item type: Item ,
    A Comprehensive Review of Pesticide Elimination Methods from Fruits and Vegetables Over the Past Two Decades: Optimizing Produce Safety for Sustainable Food Systems
    (Journal of Research and Innovation in Food Science and Technology, 2025-04-23) Zoubeida Meghlaoui , Hocine Remini , Yasmine Remini-Sahraoui , Mohamed Khalil Mellal , Sofiane Boudalia , Yasmine Brahimi , Samira Negrichi , Ayoub Allam , Lamia Medouni-Haroune , Lynda Messaoudene , Amina Abbou , Amokrane Mahdeb , Nassim Brahimi , Meriem Amrane-Abider , Zahia Brara , Khodir Madani
    The increasing use of pesticides in agriculture, valued at approximately 43.2 billion USD, has raised significant concerns regarding food safety and human health. This study reviews the effectiveness of various pesticide residue removal methods applied to fruits and vegeta bles (F & V). A total of 57 studies published between 2005 and 2022 were analyzed, cate gorizing the methods into 28 household techniques, 19 advanced methods, and 10 com bined approaches. Household methods, such as washing under running water, achieved re moval rates of up to 90%, while peeling ensured complete (100%) elimination of residues. The addition of salt or vinegar solutions improved removal efficiency, reaching 92%. Ad vanced methods, notably ozonation, demonstrated high efficacy with up to 95% removal. The most effective approaches were combined techniques, integrating washing, ultrasound, and ozonation, which achieved residue elimination rates of up to 99%. Despite their effi ciency, advanced methods face limitations due to high costs and technological constraints, reducing their accessibility for widespread use. This review underscores the necessity of an integrated approach to enhance food safety. Additionally, it highlights the need for further research on the long-term impact of these removal methods on the nutritional quality of F & V. These findings provide essential insights for consumers, farmers, and the food industry, contributing to the development of more effective and practical food safety strategies.