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All Journal Indonesian Food Science and TechnologyJournal Journal of Agri-Food Science and Technology (JAFoST)
Apriyadi, Rimbawan
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry

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Characterization of Mandai Powder Encapsulants: A Comprehensive Analysis of Chemical Composition and Morphological Changes Rohmah, Miftakhur; Apriyadi, Rimbawan; Rahmadi, Anton
Indonesian Food Science and Technology Journal Vol. 8 No. 2 (2025): Volume 8. Number 2, July 2025 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v8i2.36983

Abstract

Abstract— Potential: Mandai cempedak powder, rich in phenolic compounds and lactic acid, is encapsulated using a spray drying technique to maintain its unique content. This research aims to authenticate the final encapsulant product of Mandai powder by comparing it with raw materials (cempedak powder, Mandai powder) and the pre-encapsulation process. The analysis involves ATR FTIR, GC-MS techniques, morphological characteristics, and amino acid content. FTIR results identified lactic acid in the form of a carboxylic acid (-COOH) functional group and phenolic compounds with aromatic rings stretching carbon-carbon (C-C) bonds in starch and protein-based matrices, GC-MS analysis showed changes in volatile composition such as the appearance of the compound paromomycin, and Ethyl 9-hexadecenoic in mandai powder encapsulant products. Morphological characteristics also showed changes in structure from cempedak powder to mandai powder encapsulant. Apart from that, the amino acid content analysis in the encapsulant still detected relatively high levels of aspartic acid, glutamate, and arginine. In conclusion, this study discusses the successful encapsulation of mandai powder and provides information about changes in chemical composition during the encapsulation process.
Evaluation of Antioxidant Activity in Traditional Indonesian Herbal Medicine (Jamu) Using ABTS and DPPH Testing Methods Apriyadi, Rimbawan; Sari, Kartika; Rachmawati, Maulida; Fauzan, Muhammad Rafii Nur; Rohmah, Miftakhur
Journal of Agri-Food Science and Technology Vol. 6 No. 4 (2025): December
Publisher : Universitas Ahmad Dahlan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12928/jafost.v6i4.13005

Abstract

Herbal medicines are widely consumed as natural antioxidants to prevent oxidative stress-related diseases. Accurate assessment of antioxidant activity is essential, yet different methods may yield varying results. This study contributed to compare the antioxidant activities of ten commercial herbal medicines using ABTS (2,2’-azinobis- (3-ethylbenzothiazoline-6-sulfonic acid) and DPPH (2,2-diphenyl-1picrylhydrazyl) assays and evaluate the correlation between both methods. Ten herbal formulations were collected from local producers in Samarinda, Indonesia. Each product was mixed with low-fat milk (1:10 w/v) to enhance bio-accessibility and extracted via sonication and centrifugation. Antioxidant activity was analyzed using ABTS and DPPH radical scavenging assays. Percentage inhibition and IC₅₀ values were calculated. Statistical analysis was performed using GraphPad Prism 9.5.0 with Pearson correlation at a 95% confidence level. ABTS inhibition ranged from 10.54% to 72.73%, while DPPH ranged from 8.89% to 49.03%. IC₅₀ values were lower in ABTS (13.51–105.36 µg/mL) than in DPPH (20.11–165.50 µg/mL). A moderate positive correlation (r=0.5390) between inhibition results was observed but was not statistically significant (p=0.1079). Among all samples, the herbal formulation containing turmeric, betel leaf, areca nut, and manjakani exhibited the highest antioxidant activity with 72.73% inhibition (ABTS) and an IC₅₀ of 13.51 µg/mL. The differing sensitivities of ABTS and DPPH assays suggest that both methods should be used complementarily to obtain a comprehensive antioxidant profile of herbal products.
Co-Authors Anton Rahmadi Fauzan, Muhammad Rafii Nur Kartika Sari Maulida Rachmawati Miftakhur Rohmah, Miftakhur