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Journal Of Carbazon
Published by Universitas Syiah Kuala
ISSN : 29885744     EISSN : 29885744     DOI : 10.24815/jocarbazon
Core Subject : Science,
Biochemistry, Genetics & Molecular Biology Chemistry Materials Science & Nanotechnology
Journal of Carbazon is a journal published by Chemistry Department, Faculty of Science and Mathematics, USK Banda Aceh. The journal aims to disseminate cutting-edge research in all areas of chemistry both theoretical and experimental studies. Journal of Carbazon provides readers with original research articles and reviews. We welcome articles coming from Indonesia and overseas, capturing the rapid development of chemistry, including: Theoretical and computation chemistry Environmental chemistry Material, composite and polymer chemistry Organic synthesis and natural product chemistry Inorganic Chemistry Food and medical chemistry Biochemistry Analytical chemistry The author is solely responsible for the content of published articles and understood that submitted work is based on original results which has not been published previously. All accepted articles are reviewed by a team of experts.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 25 Documents
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Testing Antioxidant Activity of Pineapple (Ananas Comossus Merr.) Rinds Using UV-Vis Spectrophotometry Method Syahputra, Andi; Halimatussakdiah, Halimatussakdiah; Amna, Ulil
Journal of Carbazon Vol 2, No 1 (2024): June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jocarbazon.v2i1.37830

Abstract

Pineapple (Ananas comossus Merr.) is one of the plants that is widespread in tropical and subtropical areas. This plant content vitamin C and antioxidant activity. This study was conducted to identify the class of secondary metabolite compounds and determine the antioxidant activity of pineapple fruit peel. Antioxidant activity testing on pineapple fruit peel was conducted using UV-Vis spectophotometric method with wavelength of 514 nm. The identification of secondary metabolite compounds showed that the methanol extract of pineapple fruit peel contains alkaloid, flavonoid, phenol, tannin and saponin compounds. Antioxidant activity of methanol extract of pineapple fruit peel carried out by DPPH (1,1-diphenyl-2-picryldhydrazyl) method shows IC50 value of 92.87 ppm with strong category, while vitamin C as a comparison has IC50 value of 9.31 ppm with very strong category. This is due to the pineapple fruit peel containing high levels of vitamin C. In addition, pineapple fruit peel contains secondary metabolites, especially flavonoids, phenols and tannins which are a class of polyphenolic compounds.
Characteristics of Cellulose Nanofibrils From Arabica Coffee Skin Prepared by the Acid Hydrolysis Zulnazri, Zulnazri; Dewi, Rozanna; Muarif, Agam; Fikri, Ahmad; Aulia, Rauzatul; Amalia, Nabuia; Firda, Hanisyah
Journal of Carbazon Vol 2, No 1 (2024): June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jocarbazon.v2i1.38686

Abstract

Cellulosenanofibrils (CNF) is a new generation material that has high performance, good physics and medical properties and is a renewable material that has been developed from various sources using the acid hydrolysis method. CNF synthesis is generally obtained from logs that have a high amount of cellulose fiber. Cellulose nanofibrils (CNF) from arabica coffee skins have great potential to be developed as raw materials for medicines, which function as wound healing agents, surgical sutures, diet medicines, and skin softeners. CNF is produced from Arabica coffee skin through delignification, namely the removal of lignin and hemicellulose by extraction with alkali until -cellulose is obtained, then CNF is synthesized through hydrolysis using dilute acid. From the coffee skin extraction results, a high cellulose yield was obtained, reaching above 24.30% and crystallinity reaching 79.60%. Hydrolysis by 10%, 12% and 15% HCl with a reaction time of 2 hours, the respective crystallinity was 80.66; 79.06; and 77.69%.
Determination Of Total Flavonoids Extract of White (Magnolia Alba (Dc.) Figlar) Using Spectrophotometry UV-Vis Method Mastura, Mastura; Amna, Ulil; Niaci, Sarah; Pebiola, Tia
Journal of Carbazon Vol 2, No 1 (2024): June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jocarbazon.v2i1.37890

Abstract

Flavonoids are a group of secondary metabolites produced by plants that have the potential to influence pharmacological activity. This study aims to determine the total flavonoid content of the ethanol crude extract of white cempaka flowers (Magnollia alba(DC.) Figlar) using the UV-Vis spectrophotometry method. This study used colorimetric and spectrophotometric methods using quercetin as a comparison. The qualitative test research results proved that cempaka putih (Magnolia alba(DC.) Figlar) flowers contain flavonoid coumpound. Then a maximum wavelength of 432 nm is obtained with an absorbance of 0.1236, the absorbance calculation for each quercetin concentration and the sample is calculated using a maximum wavelength of 432 nm. Based on the linear regression equation obtained from the standard quercetin curve, the total flavonoid content of the crude ethanol extract of cempaka putih flowers with 3 different concentration variations, at a concentration of 100 ppm, the results obtained for the total flavonoid content were 276,83 17,7 mgQE/g, 500 ppm. total flavonoid levels of 105,189 8,16 mgQE/g, 1000 ppm obtained total flavonoid levels of 79,115 8,33 mgQE/g.
FT-IR Characterization and Phylogenetic Analysis of Patchouli Oil from West Aceh and Aceh Jaya using PCA and HCA Nisak, Khairun; nariska, Sandiana; Suhud, Khairi; Sufriadi, Elly
Journal of Carbazon Vol 2, No 1 (2024): June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jocarbazon.v2i1.38859

Abstract

This study aims to characterize and compare the chemical composition of patchouli oil from various regions in Aceh, Indonesia, using Fourier-transform Infrared Spectroscopy (FT-IR) combined with Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA). Patchouli oil samples from five distinct locations within West Aceh and Aceh Jaya Regencies were analyzed, focusing on the 1800-500 cm range. The FT-IR spectra revealed significant chemical markers, with notable absorption bands corresponding to aliphatic C-H, C=O, and C=C stretching vibrations. Multivariate analyses showed distinct clustering patterns, with four samples (POSM, POSP, POT, and POW) exhibiting high chemical similarity and clustering together, while one sample (POP) formed a separate cluster, indicating a lower degree of similarity. PCA analysis of the original spectra in the 1800-500 cm range yielded a cumulative PC1 and PC2 value of 89%. The HCA dendrogram highlighted a significant relative distance of 10 between the POP sample and the other four samples, indicating minimal relatedness, with the closest relatedness observed between POSM and POSP, having a relative distance of 1.1. This study demonstrates the effectiveness of FT-IR spectroscopy combined with PCA and HCA in distinguishing chemical profiles of patchouli oil from different regions, providing insights into geographical and varietal influences on oil composition. The findings are crucial for quality control and standardization in the patchouli oil industry, with further molecular studies recommended to corroborate and enhance understanding of genetic diversity among patchouli varieties in Aceh.
Study of Adsorption Kinetics and Degradation of Fatty Oil in Palm Oil Mill Effluent (POME) Using Activated Bentonite Sunartaty, Rita; Sufriadi, Elly; Saiful, Saiful
Journal of Carbazon Vol 2, No 1 (2024): June 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/jocarbazon.v2i1.37917

Abstract

A study was conducted on the treatment of palm oil liquid waste using activated bentonite through an adsorption method. Four variations of adsorbent treatments were employed: untreated bentonite (UBA), and chemically activated bentonite with 5%, 10%, and 15% H2SO4 (CAB-5, CAB-10, and CAB-15, respectively). The adsorption capacities (qe) for UBA, CAB-5, CAB-10, and CAB-15 were found to be 91.01, 97.01, 94.46, and 93.27 mg/g, respectively. The adsorption kinetics followed a first-order reaction model, with correlation coefficients (R2) of 0.70, 0.93, 0.98, and 0.94 for UBA, CAB-5, CAB-10, and CAB-15, respectively. Additionally, the fatty oil content of the treated waste, when adsorbed for 60 to 100 minutes, met the quality standard threshold, reducing it to below 25 mg/L. This study underscores the importance of addressing the waste produced by the palm oil industry and emphasizes the need for effective effluent treatment to protect the environment and ensure industry sustainability.

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