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  • 1
    In: Journal of Catalysis, Elsevier BV, Vol. 336 ( 2016-04), p. 41-48
    Type of Medium: Online Resource
    ISSN: 0021-9517
    RVK:
    Language: English
    Publisher: Elsevier BV
    Publication Date: 2016
    detail.hit.zdb_id: 1468993-5
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  • 2
    Online Resource
    Online Resource
    University of Sri Jayewardenepura ; 2022
    In:  Vidyodaya Journal of Science Vol. 25, No. 01 ( 2022-07-01)
    In: Vidyodaya Journal of Science, University of Sri Jayewardenepura, Vol. 25, No. 01 ( 2022-07-01)
    Abstract: Currently, there is an increased demand for advanced food packages, which can significantly increase the shelf life of food items. In the current context, it is envisaged that nanotechnology has the potential to address stability, toxicity, shelf-life, and low-cost issues of antimicrobials associated with the packaging industry. Antimicrobial nanocomposite systems are believed to be more efficient than their microscale counterparts due to the high surface area to volume ratio and quantum mechanical involvement in deciding their properties. As a result of high surface area, they are able to attach more copies of microbial molecules and cells, thus reducing the quantity of material required while significantly improving their activity. This study focuses on the development of slow-release antimicrobial material based on natural citrate (α-hydroxycitrate) intercalated layered double hydroxide (LDH) nanohybrid. Natural citrate ions available in Citrus aurantifolia (lime) were extracted by a simple chemical method and intercalated into Mg-Al-Layered Double Hydroxide following a one-step co-precipitation method. Successful intercalation of the citrate ion was confirmed by powder X-ray diffraction (PXRD) and Fourier transform infrared (FTIR) spectroscopic analysis. Release kinetics of resulted nanohybrid was studied and compared using different release kinetic models. Antimicrobial properties of this novel nanohybrid were confirmed against two common food pathogens, Colletotrichum gloeosporioides and Saccharomyces cerevisiae, and the results were compared against sodium benzoate, which is the commonly used commercial antimicrobial agent in the food industry. Successful intercalation of natural citrate ions into LDH and its activity against the tested microbes show the potential of using it as a slow-release nanohybrid material in many food-related applications. Keywords: Layered Double Hydroxide, α-Hydroxycitrate, Natural, Safe, Lime Extract, Slow Release, Antimicrobial
    Type of Medium: Online Resource
    ISSN: 2792-1298
    URL: Issue
    Language: Unknown
    Publisher: University of Sri Jayewardenepura
    Publication Date: 2022
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  • 3
    Online Resource
    Online Resource
    Sri Lanka Journals Online ; 2023
    In:  Journal of the College of Community Physicians of Sri Lanka Vol. 29, No. 3 ( 2023-10-03), p. 194-206
    In: Journal of the College of Community Physicians of Sri Lanka, Sri Lanka Journals Online, Vol. 29, No. 3 ( 2023-10-03), p. 194-206
    Abstract: Introduction: Benign prostatic hyperplasia (BPH) is a common condition affecting aging men worldwide. Pumpkin and its extracts are enriched with antioxidant, anti-androgenic and anti-inflammatory properties.Objectives: To systematically review the effect of pumpkin on the reduction of lower urinary tract symptoms (LUTS) due to bladder outflow obstruction in BPHMethods: The review (PROSPERO ID: CRD42020181395) perused PubMed, EMBASE, Cochrane Library, CINAHL and AGRICOLA databases in two rounds independently by two reviewers according to three screening questions: being a pumpkin related human study, having BPH related outcomes and including quantifiable measurements. Risk of bias assessments were done with GRADE and ROBINS-I Criteria. After assessing the clinical, methodological and statistical heterogeneity, meta-analysis was performed for one outcome with mean difference (MD) using Inverse Variance Method with Review Manager 5.4 software.Results: Out of the 242 articles with de-duplication and screening questions, 10 based on interventional studies among adult males with LUTS were selected in ??third round (8 on pumpkin seeds alone; 2 on pumpkin combined products). International Prostate Symptoms Score (IPSS) was described in nine articles. Other outcomes assessed were quality of life (QOL), prostate volume, Prostate Specific Antigen (PSA), uroflow rate, post-voidal residual volume, frequency of micturition during day and night, nocturia and erectile dysfunction. Meta-analysis of three studies (650 and 631 subjects in experimental and control groups) was performed for IPSS reduction. Pooled MD (I2=0%) was -1.41 (95% CI: -1.97, -0.85) with random effect assumption. In all relevant studies, the intervention group demonstrated significant IPSS reduction and increased QOL. One study each demonstrated significant reduction in prostate volume and residual volume; three studies in uroflow rate; and none on PSA improvement.Conclusions & Recommendations: Pumpkin seeds may be beneficial in reducing IPSS and to some extent in improving prostate and residual volume, uroflow rate and QOL in BPH. Further studies are needed to strengthen the hypothesis.
    Type of Medium: Online Resource
    ISSN: 2579-1451 , 1391-3174
    Language: Unknown
    Publisher: Sri Lanka Journals Online
    Publication Date: 2023
    detail.hit.zdb_id: 2648890-5
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