In:
Heavy metals and arsenic concentrations in water, agricultural soil, and rice in Ngan Son district, Bac Kan province, Vietnam, Vietnamese Journal of Food Control, National Institute for Food Control, Vol. 6, No. 3 ( 2023-06-28), p. 259-271
Abstract:
In recent years, the use of natural herbal remedies in disease treatment in Vietnam has & nbsp;been significantly considered. Research on the chemical composition, microscopic & nbsp;characteristics, and extraction of active components from herbal materials play an important & nbsp;role in medicinal applications. This study aims to describe the microscopic features of fresh & nbsp;Bishopwood leaves using a dual staining method, examine leaf powder under a microscope, & nbsp;determine the components using chemical reactions, and investigate the influence of factors & nbsp;such as ethanol concentration, time, temperature, and the ratio of raw materials to solvents & nbsp;on the process of extracting flavonoids from Bishopwood leaves. Through unique chemical & nbsp;reactions, the & nbsp;components of Bishopwood leaves were identified to include flavonoids, & nbsp;phenolics, tannins, steroids, proteins, carbohydrates, and anthranoids. Microscopic & nbsp;examination of fresh Bishopwood leaves and leaf powder under a microscope revealed & nbsp;characteristic structural components including epidermis, stomata, parenchyma, sclerenchyma, fiber bundles, and vascular bundles. The appropriate conditions for extracting & nbsp;flavonoids from Bishopwood leaves were using 50% ethanol as the extraction solvent, a 3-hour extraction time, a temperature of 60 & deg;C, and a raw material-to-solvent ratio of 1 : 30 & nbsp;(g/mL). The research findings serve as valuable information contributing to the & nbsp;identification, standardization, and development of new drugs from local medicinal & nbsp;materials.
Type of Medium:
Online Resource
ISSN:
2615-9252
DOI:
10.47866/2615-9252/vjfc.4116
Language:
Unknown
Publisher:
Vietnamese Journal of Food Control, National Institute for Food Control
Publication Date:
2023
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