Guava leaf extract is utilized as an alternative natural reagent for quantification of iron. The flow injection technique enables the use of the extract in acetate buffer solution without the need of further purification. Some properties of the extract such as its stability and ability to form a colored complex with iron were studied. The proposed system is an environmentally friendly method for determination of iron with less toxic chemical wastes.
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http://dx.doi.org/10.1016/j.talanta.2005.07.039 | DOI Listing |
Plant Dis
January 2025
Guilin, Guangxi, China;
L. is a tropical fruit, cultivated in various provinces of China, such as Guangxi, Taiwan, and Yunnan. This fruit has good edible and medicinal value.
View Article and Find Full Text PDFNutrients
December 2024
Department of Food and Nutrition, Kyung Hee University, 26 Kyunghee-Daero, Dongdaemun-Gu, Seoul 02447, Republic of Korea.
Background/objectives: Type 2 diabetes mellitus (T2DM) is considered a serious risk to public health since its prevalence is rapidly increasing worldwide despite numerous therapeutics. Insulin resistance in T2DM contributes to chronic inflammation and other metabolic abnormalities that generate fat accumulation in the liver, eventually leading to the progression of metabolic dysfunction-associated fatty liver disease (MAFLD). Recently, the possibility that microbial-derived metabolites may alleviate MAFLD through enterohepatic circulation has emerged, but the underlying mechanism remains unclear.
View Article and Find Full Text PDFMolecules
December 2024
Departamento de Nefrología, Hospital Centenario Miguel Hidalgo, Aguascalientes 20240, Mexico.
Currently, a global health crisis is being caused by microbial resistance, in which plays a crucial role, being considered the highest-priority microorganism by the World Health Organization (WHO) for discovering new antibiotics. As a result, phytochemicals have emerged as a potential alternative to combat resistant strains, since they can exert antimicrobial activity through various mechanisms and, at the same time, represent a more natural and safe option. This study analyzes the antimicrobial effects of guava leaf extract in ten clinical isolates of extensively drug-resistant (XDR) , using the agar diffusion technique and the microdilution method to determine the minimum inhibitory concentrations (MICs).
View Article and Find Full Text PDFJ Conserv Dent Endod
November 2024
Department of Conservative Dentistry and Endodontics, Krishnadevaraya College of Dental Sciences and Hospital, Bengaluru, Karnataka, India.
Aim: The aim of the study was to evaluate and compare the cytotoxicity of 25% of neem leaf extract (), 20% of guava leaf extracts (), and 20% of cinnamon extract () irrigants at three intervals of time.
Methodology: Four groups were formed ( = 15), Group 1 (control group) - normal saline solution, Group 2 - 25% of neem extract, Group 3 - 20% of guava extract, and Group 4 - 20% of cinnamon extract. Each group was further divided into three subgroups based on intervals ( = 5).
Biomed Mater
December 2024
Vietnam National University Ho Chi Minh City, Thu Duc City, Ho Chi Minh City, 700000, VIET NAM.
Psidium guajava L. (Myrtaceae) has long been used in folk medicine as a potent therapeutic agent for the treatment of inflammation. Despite its potential, the application of this natural source remains limited because of its instability and poor permeability through biological barriers.
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