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All Journal Chimica et Natura Acta Indonesian Journal of Chemistry Helium: Journal of Science and Applied Chemistry Molekul: Jurnal Ilmiah Kimia
Sinaga, Siska Elisahbet
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Materials Science & Nanotechnology

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Literature Study of Tempe Bioactive Compounds as Functional Foods in Indonesia Sinaga, Siska Elisahbet; Tumewu, Zefanya
Helium: Journal of Science and Applied Chemistry Vol 3, No 2 (2023): Helium: Journal of Science and Applied Chemistry
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v3i2.8628

Abstract

Tempe is a locally originated food from Indonesia, enriched with numerous bioactive compounds that confer significant health benefits. This review article aims to comprehensively describe the various types of bioactive compounds present in Tempe, elaborate on their functional food roles, and elucidate the ways these compounds contribute to improved health. The methodology employed for this study involved a thorough literature review spanning the years 2013 to 2023. The findings revealed that Tempe contains essential bioactive compounds such as isoflavones, saponins, and amino acids, all of which exhibit potent antioxidant, antihypertensive, and antidiabetic properties. Regular consumption of Tempe can play a crucial role in enhancing overall health and preventing various diseases. In conclusion, Tempe serves as an exemplary functional food option, offering immense health advantages to the Indonesian population. Its rich composition of bioactive compounds makes it a beneficial addition to the diet, promoting well-being and healthy living.
24-Methylenecycloartanol Isolated from The Fruit Peel of Matoa (Pometia pinnata) and Its Activity as an Antibacterial against Staphylococcus aureus and Escherichia coli Anwar, Risyandi; Arnov, Steffi Triany; Putri, Ghesta Alifka; Sinaga, Siska Elisahbet; Naini, Al Arofatus; Supratman, Unang
Chimica et Natura Acta Vol 12, No 3 (2024)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v12.n3.55682

Abstract

Triterpenoids are compounds with highly diverse chemical structures and exhibit interesting biological activities such as antiviral, antibacterial, anti-inflammatory, and anticancer properties. The matoa plant (Pometia pinnata), belonging to the genus Pometia from the family Sapindaceae, has been used in traditional medicine and shows potential as an antibacterial agent. The purpose of this research was to isolate and determine the chemical structure of triterpenoids from the peel of the matoa fruit (P. pinnata) and to evaluate their antibacterial activity against Staphylococcus aureus and Escherichia coli. The ethyl acetate extract from the peel of P. pinnata demonstrated significant antibacterial activity. In this study, a triterpenoid compound was identified, and its chemical structure was determined using spectroscopic methods, including UV, IR, MS, 1H-NMR, 13C-NMR, and 2D-NMR, as well as by comparing data from the literature. The compound was identified as a cycloartane-type triterpenoid known as 24-methylenecycloartanol. The compound was then tested for antibacterial activity against S. aureus and E. coli. The test results showed a minimum inhibitory concentration (MIC) of 500 μg/mL for both bacteria, which was categorized as very weak
Extraction and Characterization of Phenolic Compounds from the Stem Bark of Sonneratia caseolaris (Lythraceae) and Their Potential Antibacterial Activity Harizon, Harizon; Kurnia, Dikdik; Sumiarsa, Dadan; Herlina, Tati; Sinaga, Siska Elisahbet; Shiono, Yoshihito; Azmi, Mohamad Nurul; Supratman, Unang
Indonesian Journal of Chemistry Vol 25, No 2 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.98976

Abstract

The ethyl acetate fraction separated from the stembark of Sonneratia caseolaris retrieved three phenolic compounds, including quercetin-3-O-glucoside (1), quercetin (2), and 1-O-(2,4-dihydroxybenzoyl)-β-D-glucopyranose (3). For the first time, compounds 1 and 3 were discovered from Sonneratia genus. Data from various spectroscopic techniques, including mass spectroscopy and one- and two-dimensional NMR, were used to identify their chemical structures. Antibacterial activity has also been assessed for all compounds against Staphylococcus aureus ATCC 25175 and Streptococcus mutans ATCC 6538. Compounds 1–3 displayed varying levels of antibacterial activity against S. aureus and S. mutans. However, all compounds exhibited lower efficacy compared to the control, with their minimum inhibitory concentration (MIC) values ranging from 71.25 to greater than 100 µg/mL. This study provides a foundation for optimizing S. caseolaris phenolic compounds as antibacterial agents and highlights the need for comparative studies within the Sonneratia genus to identify potent bioactive candidates through structural modification or synergistic approaches.
Steroids Produced by Endophytic Fungi (Fusarium phaseoli) Isolated from Chisocheton macrophyllus and their Antibacterial Activity against Escherichia coli and Staphylococcus aureuss Katja, Dewa Gede; Sari, Aprilia Permata; Sinaga, Siska Elisahbet; Nurlelasari, Nurlelasari; Farabi, Kindi; Sofian, Ferry Ferdiansyah; Fajriah, Sofa; Naini, Al Arofatus; Supratman, Unang
Molekul Vol 20 No 1 (2025)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2025.20.1.12727

Abstract

ABSTRACT. Steroids are secondary metabolic derivatives of terpenes containing the tetracyclic ring system known to exhibit fascinating pharmacological activity. Steroids are distributed in various genera of endophytic fungi including Fusarium genus which lives inside a higher tree such as Chisocheton macrophyllus. The purpose of this research is to identify and characterize the chemical structure of steroids generated by F. phaseoli, an endophytic fungus obtained from C. macrophyllus roots, as well as to assess their antibacterial activity against Escherichia coli and Staphylococcus aureus. The brown rice medium was fermented with F. phaseoli for six weeks before extraction with ethyl acetate. The extracts yielded four compounds, identified using spectroscopic methods such as FTIR, HRTOF-MS, 1D, and 2D NMR, and then compared to previously described compounds. Compounds 1-4 were identified as ergosterol (1), ergosterol peroxide (2), atroside (3), and cerevisterol (4). The four isolated compounds were evaluated for antibacterial activity against Staphylococcus aureus ATCC 6538 and Escherichia coli ATCC 11229 and displayed activity with MIC50 values of 500 µg/mL. Keywords: Antibacterial activity; Chisocheton macrophyllus; Fusarium phaseoli; steroids.
In vitro antimicrobial screening of Manihot esculenta Sao Pedro Petro Extract and Identification of Active Compounds Widiastuti, Diana; Sinaga, Siska Elisahbet; Sofian, Yayan; Mulyati, Ade Heri; Warnasih, Siti; Sadjarwa, Boedi; Dhiandani, Sri Boedi; Herlina, Eka; Triastinurmiatiningsih, Triastinurmiatiningsih; Agustine, Dine
Chimica et Natura Acta Vol 12, No 1 (2024)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v12.n1.50154

Abstract

Sao Pedro Petro cassava tubers (Manihot esculenta Ctro) are one of the cassava varieties, generally cultivated in tropical and subtropical areas. This plant has the potential to contain antimicrobial bioactive compounds. This research aimed to demonstrate the antibacterial activity of each fraction and subsequently identify the specific active fraction for in-depth analysis of its bioactive compounds. The evaluation of antimicrobial activity and the identification of bioactive compounds were conducted using the well-diffusion method and UPLC-QTOF MS (Ultra Performance Liquid Chromatography-Quadrupole Time of Flight Mass Spectrometry). Results indicated that the ethanol, n-hexane, and n-butanol fractions exhibited no inhibitory effects on the tested microorganisms. In contrast, the ethyl acetate fraction displayed the highest level of antimicrobial activity (Staphylococcus aureus ATCC 6538, Pseudomonas aeruginosa ATCC 27853, and Candida albicans ATCC 1023). Further analysis of the ethyl acetate fraction revealed key bioactive compounds, including Coixol (phenol-group), Trigonelline and 2,6-Dimethyl quinoline (alkaloid-group), and Chebuloside-II (terpenoid-group). In summary, this pioneering research represents the first-ever exploration of the antimicrobial potential of cassava tubers, specifically focusing on the Sao Pedro Petro variety. The study not only underscores the antimicrobial properties of Manihot esculenta tubers but also identifies specific bioactive compounds within them, providing valuable insights into their potential therapeutic applications
Antioxidant Potential and Active Compound Identification of Hylocereus costaricensis and Hylocereus undatus Peel Extracts using LC-MS/MS Mulyati, Ade Heri; Nurmayani, Reni; Widiastuti, Diana; Warnasih, Siti; Sinaga, Siska Elisahbet
Chimica et Natura Acta Vol 13, No 2 (2025)
Publisher : Departemen Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/cna.v13.n2.61186

Abstract

The object of this research was to determine the antioxidant potential and identify active compounds in the peel extracts of red dragon fruit (Hylocereus costaricensis) and white dragon fruit (Hylocereus undatus). Phytochemical tests were conducted to identify flavonoids, alkaloids, tannins, coumarins, and saponins. The antioxidant activity was assessed using the DPPH assay, while vitamin C content was quantified using UV-Vis spectrophotometry, and bioactive antioxidant compounds were identified through LC-MS/MS spectrophotometry. The results demonstrated that phytochemical screening revealed the presence of flavonoids and alkaloids in both extracts. Antioxidant activity assays indicated that the red dragon fruit peel extract exhibited an IC50 of 32.7 ppm (very active), while the white dragon fruit peel extract had an IC50 of 50.2 ppm (active), with the vitamin C control showing an IC50 of 11.90 ppm. The red dragon fruit peel extract had the highest vitamin C content (1.45%) compared to the white dragon fruit peel (1.04%). LC-MS/MS analysis identified several organic compounds, including the flavonoid isoliquiritigenin and alkaloid compounds such as aporphine, melosmine, 3-carbamoyl-1-(2-deoxy-beta-D-erythro-pentofuranosyl)-4,5-dimethylpyridinium, and alkaloid group (6-Amino-5-{[2(diethylamino) ethyl]amino}-1-propyl -2,4(1H,3H)-pyrimidinedione). These findings suggest that both red and white dragon fruit peel extracts possess significant antioxidant potential, with red dragon fruit peel demonstrating superior activity. This study can be used for further research on food technology in producing food products that are rich in nutrients.
Co-Authors Ade Heri Mulyati, Ade Heri Agustine, Dine Azmi, Mohamad Nurul Dadan Sumiarsa Dewa Gede Katja Dhiandani, Sri Boedi Diana Widiastuti Dikdik Kurnia Eka Herlina Farabi, Kindi Ferry Ferdiansyah Sofian, Ferry Ferdiansyah Harizon Harizon Naini, Al Arofatus Nurlelasari Nurlelasari Nurmayani, Reni Putri, Ghesta Alifka Risyandi Anwar Sadjarwa, Boedi Sari, Aprilia Permata Shiono, Yoshihito Siti Warnasih Sofa Fajriah Sofian, Yayan Steffi Triany Arnov Tati Herlina Triastinurmiatiningsih, Triastinurmiatiningsih Tumewu, Zefanya Unang Supratman