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1.
Environ Sci Pollut Res Int ; 31(4): 5221-5241, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-38112869

RESUMO

Population growth has stimulated rising demand for agro-food products and economic activity for many years, negatively impacting the ecosystem and non-renewable resource consumption. Algeria confronts the monumental challenge of effectively choosing how to nourish everyone on a more congested globe. However, food loss is a significant issue that worsens as Algerians' population expands and food consumption increases. In Algeria, food production and processing of food items, which include fruits, vegetables, and cereals, generate a considerable amount of by-products, with no commercial exploitation and a negative environmental impact, generating enormous socioeconomic problems. These by-products are essential sources of products with high levels of added value that can be applied in different sectors. They have no studies to measure the scope of food loss in the Algerian food industry. In this background, our research aims to quantify the loss in the Algerian food industry generated by the transformation of various agricultural products, directly affecting the economy and food availability for the population. The research utilizes a mixed methods approach, including coefficients, production statistics transformed, and data analysis; the findings reveal that a significant portion of fruits and vegetables are lost in the Algerian food industry, suggesting that minimizing food loss can help companies minimize costs and mitigate the adverse environmental effects of food production. Finally, the study proposes practical options to minimize food loss to create a long-term food system in Algeria.


Assuntos
Indústria Alimentícia , Frutas , Verduras , Ecossistema , Argélia
2.
Curr Drug Deliv ; 18(4): 382-386, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32940180

RESUMO

Severe Acute Respiratory Syndrome Coronavirus 2 has spread rapidly since its discovery in December 2019 in the Chinese province of Hubei, reaching this day all the continents. This scourge is, unfortunately, in lineage with various dangerous outbreaks such as Ebola, Cholera, Spanish flu, American seasonal flu. Until today, the best solution for the moment remains prevention (Social distancing, hand disinfection, use of masks, partial or total sanitary containment, etc.); there is also the emergence of drug treatment (research and development, clinical trials, use on patients). Recent reviews emphasized the role of membrane lipids in the infectivity mechanism of SARS-COV-2. Cholesterol-rich parts of cell membranes serve as docking places of host cells for the viruses. Coronavirus 2 is a member of a virus family with lipid envelope that fuses with host cell through endocytosis, internalizing its components in the cell. In vitro cell models have shown that depletion of cholesterol by cyclodextrin, and particularly methyl beta cyclodextrin disturb the host cell membrane lipid composition this way, reducing the attachment of the virus to the protein receptors. This review aims to summarize the state of the art of research concerning the use of cyclodextrin or its complexes as a potential treatment against this new virus and update work already published.


Assuntos
Antivirais/farmacologia , Tratamento Farmacológico da COVID-19 , Ciclodextrinas/uso terapêutico , SARS-CoV-2/efeitos dos fármacos , COVID-19/virologia , Ciclodextrinas/farmacologia , Humanos , SARS-CoV-2/isolamento & purificação
3.
Anticancer Agents Med Chem ; 21(9): 1183-1190, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-32885761

RESUMO

BACKGROUND: Camptothecin is known for its potent anticancer activity. However, its optimal activity is reduced due to its low solubility and stability in biological media. OBJECTIVE: The aim of the present study is to design and characterize a Camptothecin (CPT) suppository formulation. METHODS: Rectal suppositories of camptothecin alone, encapsulated with Cyclodextrin (CD) and in the ternary system (CPT encapsulated with cyclodextrin and dispersed in Polyethylene Glycol (PEG) 6000) were prepared using various hydrophobic and hydrophilic polymeric bases as semi-synthetic glyceride (Suppocire® AM Pellets) and Polyethylene Glycols (PEGs) mixtures. Formulations were evaluated by various parameters like weight variation, drug content, hardness and liquefaction time. In vitro release study was performed in USP type I apparatus using phosphate buffer pH 7.2 as dissolution media. RESULTS: Suppositories were within the permissible range of all physical parameters. In vitro drug released from water soluble base (PEG) was greater than that from oil soluble base with ninety percent (90%) of drug dissolution. It was also established that drug release from various formulations was by diffusion mechanism, according to the Higuchi's equation. CONCLUSION: This new formulation offers a new approach to colorectal cancer treatment by offering an alternative and simple drug administration route.


Assuntos
Antineoplásicos/química , Camptotecina/química , Supositórios/química , Antineoplásicos/síntese química , Camptotecina/síntese química , Cápsulas/síntese química , Cápsulas/química , Composição de Medicamentos , Liberação Controlada de Fármacos , Humanos , Estrutura Molecular , Polietilenoglicóis/química , Supositórios/síntese química
4.
Biomed Chromatogr ; 35(4): e5018, 2021 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-33125786

RESUMO

The HPLC method was developed and validated for assaying alpha-tocopherol and cholesterol in cryopreservation media. Chromatographic separation was performed on an isocratic system, using a C-18 column. The mobile phase was composed of a mixture of methanol:acetonitrile:water 68:28:4 (v/v/v), using a flow rate of 1.5 mL/min and 20 µL injection volume, at a wavelength of 208 nm. The method was validated according to International Conference on Harmonization guidelines. The method proved to be specific, accurate, precise, and linear with correlation coefficients greater than 0.996 over a wide concentration range of both analytes. Vitamin E and cholesterol presented limits of detection of 0.002 mg/mL, 0.026 mg/mL and limits of quantitation of 0.006 mg/mL, 0.086 mg/mL, respectively. This method is simple and rapid, shows high precision and accuracy, and offers the advantage of simultaneous assaying of vitamin E and cholesterol (alone, in cyclodextrins complexes or in liposome loaded) on semen cryopreservation media.


Assuntos
Colesterol/análise , Criopreservação , Soluções para Preservação de Órgãos/química , Preservação do Sêmen , alfa-Tocoferol/análise , Cromatografia Líquida de Alta Pressão/métodos , Limite de Detecção , Modelos Lineares , Reprodutibilidade dos Testes
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