Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal HAYATI Journal of Biosciences JURNAL GIZI INDONESIA Jurnal Sumberdaya Hayati Science and Technology Indonesia Makara Journal of Technology
Rizna Triana Dewi
Research Center for Chemistry - Indonesian Institute of Sciences, Kawasan PUSPIPTEK Serpong, Tangerang Selatan, Banten 15314
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Health Professions Immunology & microbiology Materials Science & Nanotechnology Mechanical Engineering Physics

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
In vitro lipase enzyme inhibitory activities of green tea and other herbs Megawati, Megawati; Artanti, Nina; Mulyani, Hani; Darmawan, Akhmad; Syahrian, Heri; Lotulung, Puspa Dewi N.; Supriadi, Edi; Widiyarti, Galuh; Dewi, Rizna Triana; Meilawati, Lia; Ernawati, Teni; Dewijanti, Indah Dwiatmi; Minarti, Minarti
Jurnal Gizi Indonesia (The Indonesian Journal of Nutrition) Vol 9, No 1 (2020)
Publisher : Department of Nutrition Science, Faculty of Medicine, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jgi.9.1.48-52

Abstract

Background: Increased lipase activity can increase the amount of monoglycerides and fatty acids absorbed by the body, this is what affects obesity. If pancreatic lipase activity is inhibited, the production of fatty acids will decrease, consequently the level of fat in the blood will also decrease.Objective: To study anti obesity potential of a single herb or a mixture of green tea and other herbs (Syzygium polyanthum. Lv, Artocarpus communis.Lv, Cinnamomum verum..Lv, Manilkara zapota.Lv, Tectona grandis.Lv) by the in vitro inhibition assay of the lipase enzyme activityMethod: A single (8 herbs) or a mixture of three herbs powder (12 formulas) was put into a tea bag with a total weight of 1.5 g to be brewed in 100 mL bottled mineral water at 70⁰-90⁰C for 10 minutes. In vitro lipase enzyme inhibition assay were conducted to measure the ability of these samples as lipase inhibitor. Orlistat used as positive lipase inhibitor. Results: There was a difference results of lipase inhibition activity between the sample of a single and a mixture of herbs. Interestingly, the results shows that formula 3 (mixture of green tea, Manilkara zapota and cinnamon). has 53.942 % inhibition, formula 9 (a mixture of green tea, Syzygium polyanthum and cinnamon) has 67.322 % inhibition and formula 12 (a mixture of green tea, Tectona grandis and cinnamon) has 56.612 % inhibition which close to lipase inhibitory activity by standard Orlistat.Conclusion: The mixture of green tea and two other herbs has a lipase inhibitory activity similar to Orlistat, when compared to the single herb. The highest lipase inhibitory activity is found in formula 9.
Production of Lovastatin and Sulochrin by Aspergillus Terreus Using Solid State Fermentation Dewi, Rizna Triana; Artanti, Nina; Mulyani, Hani; Lotulung, Puspa Dewi Narrij; Minarti, Minarti
Makara Journal of Technology Vol. 15, No. 1
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Lovastatin is an anti-cholesterol agent that was produced by Aspergillus terreus using solid state fermentation (SSF). During this fermentation process, sulochrin is also produced as an unwanted co-metabolite. However, our previous result showed that sulochrin had potential as antidiabetes because it is an inhibitor agent of α-glucosidase. In this paper, we reported our observation on lovastatin and sulochrin production pattern in relation with inhibitor α-glucosidase activity during eleven days fermentation of A. terreus koji (SSF) ethyl acetate extract. Koji obtained from solid state fermentation with rice as the substrate and incubated at room temperature, sample is taken daily for eleven day (D-1 to D-11). Lovastatin and sulochrin production was measured by Liquid Chromatography- Mass Spectrometer based on their molecular weight m/z 404.5 and 332.3 respectively. The inibitory activity is measured by inhibition model of koji extract against α-glucosidase (EC 3.2.1.20) from Saccharomyces cereviceae. The results show that lovastatin production was started on the day 2 (0.04 mg/g) and achieving the optimal production on day 7 (11.46 mg/g), while sulochrin production was started on day 4 (0.60 mg/g) and keep produced until the end of fermentation period at Day 11 (3.11 mg/g). Koji extract was started to show inhibitory to α-glucosidase activity on Day 5 (IC50= 23.34 μg/mL) and keep showed activity until Day 11 (IC50=3.33 μg/mL). These results suggest that inhibitory activity of koji extract to α- glucosidase activity have relation with sulochrin biosynthesis production.
Evaluation of Bioactive Compounds, Antioxidant, and Anti-Diabetic Activities in Hexane and Supercritical Carbon Dioxide Extracts of Sweet Potato (Ipomoea batatas L.) Leaves Nasori, Achmad Sofian; Wiguna, Bangkit; Rahayu, Maya Damayanti; Permatasari, Devi; Kazfia, Hananda; Muhamaludin; Rosyidin, Ahmad Khulafaur; Dewi, Rizna Triana; Fu, Minghai; Atmaji, Priyo; Aji, Galih Kusuma
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.250-261

Abstract

Sweet potato leaves are a rich source of bioactive compounds with potential health benefits. Advanced methods are being explored to harness these beneficial compounds efficiently. Applying the supercritical carbon dioxide (SCO2) technique, as an environmentally friendly extraction technique, offers many advantages over traditional solvent extraction. This study, therefore, aimed to investigate the effect of SCO2 extraction on the bioactive properties of sweet potato leaves, focusing on antioxidant and anti-diabetic activities. Then, the SCO2 extracts were compared with the hexane extract. A completely random design was used, performing 3 pressures (2000, 3000, and 4000 Psi) and 3 temperatures (40, 50, and 60°C) for the SCO2 extraction. In addition, a maceration using hexane solvent was performed in a shaker for 24 hours. Total polyphenol and flavonoid concentrations were quantified, and gas chromatography-mass spectrometry (GCMS) analyses were used to identify the extracted bioactive compounds. Antioxidant and anti-diabetic activities were also assessed. This yield of SCO2 extraction ranged from 0.49% to 0.89%, which was significantly lower in yield, polyphenol, flavonoid concentration, and antioxidant activity compared to hexane extract (P<0.05). Despite the lower yield, this study observed a higher concentration of bioactive terpenoids such as phytol, caryophyllene oxide, and squalene. In terms of anti-diabetic activity, the extracts at SCO2-specific conditions (4000 Psi 40°C, 3000 Psi 60°C, 3000 Psi 40°C, and 60°C, 2000 Psi 60°C) exhibited potent alpha-glucosidase inhibition, with IC50 values comparable to acarbose, and hexane extract. Dipeptidyl peptidase 4 (DPP4) inhibition was the highest in the hexane extract (p < 0.05), followed by SCO2 extracts. Thus, these findings highlight new possibilities for developing anti-diabetic agents derived from sweet potato leaves using the green SCO2 extraction technique.
Evaluation of Antibacterial and Antibiofilm Effects from Soil Streptomyces spp. against Multidrug-Resistant Bacteria Prastya, Muhammad Eka; Simbolon, Sumihartati; Priyanto, Jepri Agung; Hasidu, La Ode Abdul Fajar; Permatasari, Vera; Primahana, Gian; Dewi, Rizna Triana; Kristiana, Rhesi; Suryanti, Erma
HAYATI Journal of Biosciences Vol. 32 No. 1 (2025): January 2025
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.32.1.12-26

Abstract

The global increase in multidrug-resistant (MDR) bacterial infection has rapidly gained concern globally. This study aimed to investigate antibacterial and antibiofilm potential of 25 soil actinomycete strains against MDR strains including Escherichia coli strain M4, Pseudomonas aeruginosa strain M19, Klebsiella pneumoniae strain M19, Bacillus subtilis strain M18, and Methicillin Resistant Staphylococcus aureus (MRSA). In this study, three actinomycete isolates encoded APM-7, APM-11, and APM-21 showed a strong and broad antibacterial spectrum. The minimum inhibitory concentration (MIC) of extracts derived from these isolates was ranged from 78 μg/ml to 10,000 μg/ml. In addition, The extracts also displayed significant biofilm inhibition values ranging from 6.06 to 72.4%. Based on the results, APM-21 extract had the best antibacterial and antibiofilm activities with the strongest values against MRSA. According to the nucleotide sequencing of the 16S rRNA gene, APM-7, APM-11, and APM-21 strains possessed similar identities with Streptomyces cyaneus, Streptomyces coerulescens, and Streptomyces panayensis, respectively. Based on Liquid Chromatography Tandem-Mass Spectrometry (LC-MS/MS) analysis, two antibacterial compounds, namely rancimanycin III, and enteromycin were detected in all those three extracts. Interestingly, APM-21 extract also contained two prominent antibacterial substances including paramagnetoquinone C, and caerulomycin I, suggesting their contribution to the most potential activities. Moreover, new insights were provided into a promising candidate for use in an active compound combating strategy to control MDR bacterial strain infection.
Aktivitas Antibakteri dan Antioksidan dari Senyawa Bioaktif Asal Bakteri Endofit Tanaman Nyatoh (Palaquium amboinense B.) : Antibacterial and Antioxidant Properties of Bioactive Compounds Derived from Endophytic Bacteria Isolated from Nyatoh (Palaquium amboinense B.) Putra, Rayhan Helmyana; Retnowati, Dwi; Cordova, Datu Muhammad; Zahra, Aliya Azkia; Primahana, Gian; Dewi, Rizna Triana; Filailla, Euis; Sukirno; Prastya, Muhammad Eka
Jurnal Sumberdaya Hayati Vol. 10 No. 1 (2024): 2024
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.10.1.25-32

Abstract

Nyatoh plant (Palaquium amboinense B.) is native to Indonesia which is known to have the ability to produce potential secondary metabolites. The aim of this study was to evaluate the antibacterial and antioxidant activities from bioactive compounds produced by endophytic bacteria from nyatoh leaves. Five endophytic bacteria were tested against 4 targeted bacteria including Escherichia coli ATCC 8739, Pseudomonas aeruginosa ATCC 15442, Bacillus subtilis ATCC 19659, and Staphylococcus aureus ATCC 6538. Bacterial isolate which had the strongest antibacterial activity was then fermented and extracted. The corresponding extract was further tested on disc diffusion method, determination of Minimum Inhibitory Concentration (MIC) and Minimum Bactericidal Concentration (MBC) values, antioxidant evaluation, and analyzed for its bioactive compound components via GC-MS analysis. The results showed that one isolate, namely D1 can produce secondary metabolite which act as antibacterial and antioxidant potentials. This corresponding extract has the strongest MIC and MBC against B. subtilis with value of 39.5 and >78.1 µg/ml and exhibited antioxidant activity against 2,2-difenil-1-pikrilhidrazil (DPPH) with inhibition value of 85.37%. Based on GC-MS analysis, secondary metabolites derived from this potential extract contained some major active constituents including Tributyl acetylcitrate and bis (2-ethylhexyl) ester which might act as antibacterial and antioxidant agents.
Co-Authors A.A. Ketut Agung Cahyawan W Aji, Galih Kusuma Akhmad Darmawan Cordova, Datu Muhammad Devi Permatasari Dewijanti, Indah Dwiatmi Dwi Retnowati Filailla, Euis Fu, Minghai Galuh Widiyarti Hani Mulyani, Hani Hasidu, La Ode Abdul Fajar Heri Syahrian, Heri Jepri Agung Priyanto, Jepri Agung Kazfia, Hananda Lia Meilawati Lotulung, Puspa Dewi N. Maryani, Faiza Megawati - Minarti Minarti Muhamaludin Mulyani, Hanny Nasori, Achmad Sofian Nina Artanti Permatasari, Vera Prastya, Muhammad Eka Primahana, Gian Priyo Atmaji Puspa Dewi Narrij Lotulung Putra, Rayhan Helmyana Rahayu, Maya Damayanti Rhesi Kristiana Rosyidin, Ahmad Khulafaur Saraswati, Vienna Simbolon, Sumihartati SUKIRNO Supriadi, Edi Suryanti, Erma Teni Ernawati Tutik Murniasih Wiguna, Bangkit Zahra, Aliya Azkia