Catechin Extracted from Uncaria gambier Roxb for Nanocatechin Production: Physical and Chemical Properties

Malrianti, Yefsi; Kasim, Anwar; Asben, Alfi; Syafri, Edi; Yeni, Gustri; Fudholi, Ahmad

doi:10.18280/ijdne.160406

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…Synthetic antioxidants are limited in their use because they cause side effects, so natural antioxidants are needed. Gambir is a natural antioxidant [ 64 ]. The high antioxidant properties of gambir come from its content which is rich in phenolic compounds.…”

Section: Uncaria Gambir Roxb Usesmentioning

confidence: 99%

Current Research of Phytochemical, Medicinal and Non-Medicinal Uses of Uncaria gambir Roxb.: A Review

et al. 2022

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Uncaria gambir Roxb. is a plant from Southeast Asia and is widely used as an alternative medicine with various applications. This plant has been widely used in traditional medicine. This paper aims to provide information on U. gambir, a summary of data on phytochemicals and on medical and nonmedical activities. Phytochemical studies reveal biologically active constituents such as flavonoids, phenolics, and alkaloids. Various studies have shown that extracts and compounds obtained from U. gambir have medical uses for their antioxidant, antibacterial, anti-helminthic, anticancer, antifungal, anti-inflammatory, anti-hyperglycemic, anti-hyperuricemic, anti-lipid peroxidation, antihyperlipidemic and other properties. In addition, this extract has other uses, such as adsorbent for dyes and metal ions, as well as corrosion inhibition. Thus, U. gambir, which is commonly used in traditional medicine, is a potential plant for many therapeutic applications and prospects for drug development as well as other applications such as adsorbent and corrosion inhibition.

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Section: Uncaria Gambir Roxb Usesmentioning

confidence: 99%

Current Research of Phytochemical, Medicinal and Non-Medicinal Uses of Uncaria gambir Roxb.: A Review

et al. 2022

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“…Solvent treatment is also expected to cause pentosan dissolution from the fiber cell wall, which damages the cell wall and shrinks the lumen. Due to a lack of data on its characteristics in the production center, only data from Indralaya, South Sumatra [23], Bandung [24], Subang, and West Java [25] were available, therefore the sample was collected from the kapok fiber production center in Pati Regency, Central Java, Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Reducing Water Absorption and Increasing the Density of Kapok (Ceiba pentandra, L.) Fibers from Kapok Production Center in Indonesia

Rezeikinta¹,

Kasim²,

Syafri³

et al. 2023

IJDNE

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This research reports the reduction of water absorption and density increase of kapok fibers from production centers in Pati, Indonesia. Kapok fiber was treated with two solvents, hexane and NaOH solution at room temperature. The NaOH solution was used in five different concentrations; 3.5, 7, 10.5, 14, and 17.5%. Fiber morphology, water absorption, density, and weight loss were determined. Results indicated that the average diameter and fiber length obtained was 70.97 µm and 2.3 cm, while its cellulose and lignin contents were 55.69% and 20.56%, respectively. Furthermore, there was no significant difference between treating kapok fiber with hexane and with NaOH solution. The 17.5% NaOH solution treatment reduced water absorption, increased density, and reduced weight losses by 55.98%, 255.55%, and 25.58%, respectively.

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Enhanced Removal Efficiency of Malachite Green Dye Using Gambir Leaf Extract-Modified NiFe LDH Composites: A Study of Cationic Dye Adsorption

Jefri,

Fithri,

Lesbani

2024

Bull. Chem. React. Eng. Catal.

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A NiFe layered double hydroxide (LDH) composite with Uncaria gambir (UG) leaf extract was successfully synthesized. The composite (NiFe-UG LDH) and the base material (NiFe LDH) were identified using X-ray Diffraction (XRD), Fourier Transform Infra Red (FTIR), and Brunauer-Emmett-Teller (BET) Surface Area techniques. The XRD and FTIR results revealed the incorporation of gambier leaf extract into the NiFe LDH structure, as indicated by the combined diffraction patterns and spectral features. The BET analysis indicated a decrease in the surface area of NiFe-UG LDH compared to that of NiFe LDH, suggesting that active compounds from the gambier leaf extract effectively coated the LDH surface and blocked its pores. During malachite green (MG) adsorption, NiFe-UG demonstrated faster adsorption kinetics and a higher adsorption efficiency, reaching 96.420% compared to 92.085% for NiFe LDH. While both materials followed pseudo-first-order kinetics, their isotherm behaviors differed: NiFe-UG adhered to the Langmuir model, indicating monolayer adsorption, whereas NiFe LDH followed the Freundlich model, signifying multilayer adsorption. Further analysis suggested that adsorption in NiFe LDH was primarily governed by physisorption, while in NiFe-UG, a combined physisorption-chemisorption mechanism occurred. These results underscore the enhanced adsorption capacity of the composite material, attributed to the introduction of additional functional groups from the gambier leaf extract. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Catechin Extracted from Uncaria gambier Roxb for Nanocatechin Production: Physical and Chemical Properties

Cited by 3 publications

References 19 publications

Current Research of Phytochemical, Medicinal and Non-Medicinal Uses of Uncaria gambir Roxb.: A Review

Current Research of Phytochemical, Medicinal and Non-Medicinal Uses of Uncaria gambir Roxb.: A Review

Reducing Water Absorption and Increasing the Density of Kapok (Ceiba pentandra, L.) Fibers from Kapok Production Center in Indonesia

Enhanced Removal Efficiency of Malachite Green Dye Using Gambir Leaf Extract-Modified NiFe LDH Composites: A Study of Cationic Dye Adsorption

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