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EFFECT OF POVIDONE IODINE TREATMENT ON BACTERIAL COMMUNITY ASSOCIATED WITH WHITE SHRIMP (LITOPENAEUS VANNAMEI) LARVAE Pangastuti, Artini; Suwanto, Antonius; Lestari, Yulin; Suhartono, Maggy T.
Marine Research in Indonesia Vol 34, No 2 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v34i2.471

The efficacy of povidone iodine as a surface disinfectant was assessed in white shrimp (Litopenaeus vannamei) eggs and larvae. Eggs and nauplii were exposed to povidone iodine 20 ppm for 20 seconds. Culture-based method and Terminal Restriction Fragment Length Polymorphism (T-RFLP) were used to monitor the total number of bacteria and diversity of the bacterial community associated with shrimp eggs and larva at each developmental stage. Povidone iodine reduced the total culturable bacteria, especially Vibrio, on eggs and nauplii, as well as the total bacteria in the whole community as estimated by T-RFLP results. Povidone iodine also reduced the diversity of bacterial community and altered the evenness of phylotypes distribution suggesting that the use of povidone iodine as a surface disinfectant in shrimp aquaculture should be reconsidered.

EFFECT OF POVIDONE IODINE TREATMENT ON BACTERIAL COMMUNITY ASSOCIATED WITH WHITE SHRIMP (LITOPENAEUS VANNAMEI) LARVAE Pangastuti, Artini; Suwanto, Antonius; Lestari, Yulin; Suhartono, Maggy T.
Marine Research in Indonesia Vol 34 No 2 (2009)
Publisher : Research Center for Oceanography - Indonesian Institute of Sciences (LIPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/mri.v34i2.471

The efficacy of povidone iodine as a surface disinfectant was assessed in white shrimp (Litopenaeus vannamei) eggs and larvae. Eggs and nauplii were exposed to povidone iodine 20 ppm for 20 seconds. Culture-based method and Terminal Restriction Fragment Length Polymorphism (T-RFLP) were used to monitor the total number of bacteria and diversity of the bacterial community associated with shrimp eggs and larva at each developmental stage. Povidone iodine reduced the total culturable bacteria, especially Vibrio, on eggs and nauplii, as well as the total bacteria in the whole community as estimated by T-RFLP results. Povidone iodine also reduced the diversity of bacterial community and altered the evenness of phylotypes distribution suggesting that the use of povidone iodine as a surface disinfectant in shrimp aquaculture should be reconsidered.

Bioactive Compounds from Penicillium sp. Inhibit Antiapoptotic Bcl-2, Bcl-XL and Mcl-1: An in silico Study Massardi, Adhie; Bahry, Sandy Samsul; Rahmawati, Nur Anindya; Shabirah, Carissa Azmi; Pangastuti, Artini
Molecular and Cellular Biomedical Sciences Vol 7, No 2 (2023)
Publisher : Cell and BioPharmaceutical Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21705/mcbs.v7i2.330

Background: Antiapoptotic Bcl-2 proteins are overexpressed in cancer cells, leading to inhibition of apoptosis and the development of therapeutic resistance. Targeting only one type of antiapoptotic protein may have limited efficacy in cancer therapy. Anticancer drugs capable of inhibiting Bcl-2, Bcl-XL and Mcl-1 simultaneously are necessary to be explored. Penicillium sp. produces various bioactive compounds with anticancer, antibacterial, and antiviral activities. The aim of this research was to determine the best bioactive compound candidates for inhibiting Bcl-2, Bcl-XL, and Mcl-1 proteins.Materials and methods: Molecular docking analysis was conducted to estimate the binding affinity of Penicillium sp. bioactive compounds with Bcl-2, Bcl-XL, and Mcl-1 proteins. Compounds with the lowest binding energies were visualized using PyMol and Ligplot+ and further subjected to drug-likeness testing based on Lipinski's rule of five.Results: Bioactive compounds with the highest binding affinities were verruculogen and wortmannin. Wortmannin complied with Lipinski's rule of five. Meanwhile, verruculogen violated one out of the five rules by having a molecular weight >500 Da. Both compounds could be used as oral drugs.Conclusion: Verruculogen and wortmannin from Penicillium sp. show significant potential as oral anticancer drug candidates.Keywords: Bcl-2, Bcl-XL, Mcl-1, Penicillium sp., in silico

Isolation and Molecular Identification of Indole Acetic Acid-Producing Endophytic Bacteria from Daun Dewa Plant (Gynura divaricata (L.) DC) Setyowati, Ratna Dewi; Pangastuti, Artini; Susilowati, Ari
Bioeksperimen: Jurnal Penelitian Biologi Vol 9, No 2: September 2023
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/bioeksperimen.v9i2.23003

Indole acetic acid (IAA) is an auxin hormone that can regulate plant growth and development. Bacteria produce IAA through L-tryptophan metabolism. The purpose of this study was to determine the ability of endophytic bacteria isolated from Daun Dewa plants to produce IAA to increase the germination and growth of tomato seedlings. Isolation of endophytic bacteria was carried out by sterilizing plant surfaces. The production of IAA is done by adding L-tryptophan precursors. The results showed that there were six endophytic bacteria, and three isolates of them have the potential to produce IAA, namely: AD1.1, UD1.1, and UD2.1. The highest IAA concentration was produced by isolate AD1.1. Growth in sprouts is significantly influenced by the concentration of IAA; the higher the concentration of IAA, the longer the shoots and the roots. Based on the 16S rRNA gene sequence, these isolates belong to the genus Klebsiella.

Arrowroot (Maranta arundinacea L.) Tuber Extract Modulated Gut Microbiota and Improved Glycemic Control in Type 2 Diabetic Mice Pangastuti, Artini; Anggraini, Putri Regita; Listyawati, Shanti; Sari, Siti Lusi Arum
HAYATI Journal of Biosciences Vol. 33 No. 2 (2026): March 2026
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.33.2.371-381

Type 2 diabetes mellitus (T2DM) is a metabolic disorder characterized by hyperglycemia and has become a global health concern. Gut microbiota alterations significantly influence diabetes onset, which can be mitigated through prebiotic intake. Arrowroot tubers (Maranta arundinacea L.) possess prebiotic potential due to their oligosaccharide and dietary fiber content. This study evaluated the effects of arrowroot tuber extract on blood glucose, glucose tolerance, and gut microbiota composition in a T2DM mouse model. Tubers were macerated in ethanol, and BALB/c mice were fed a high-fat diet for five weeks, followed by streptozotocin injection (35 mg/kg) to induce T2DM. Mice received 150 mg of arrowroot tuber extract orally for 28 days. Blood glucose levels were measured on days 0, 14, and 28, and an oral glucose tolerance test (OGTT) was performed. Cecal samples collected after four weeks underwent 16S rRNA sequencing, and data were analyzed using One-Way ANOVA (p<0.05). Treatment with arrowroot tuber extract for 28 days reduced blood glucose levels by 40.5% and improved glucose tolerance. The extract modulated gut microbiota, decreasing harmful bacteria while increasing short-chain fatty acid (SCFA)-producing genera such as Lachnospiraceae NK4A136, Ligilactobacillus, and Alistipes. These results indicate that arrowroot tuber extract can beneficially alter gut microbiota composition and ameliorate hyperglycemia, suggesting its potential as a prebiotic-based therapeutic strategy for managing T2DM.

The Effectiveness of Spirulina in Restoring Body Weight in Anemia-Induced Female Wistar Rats Konitah, Zahra; Sajidan, Sajidan; Pangastuti, Artini
Nutri-Sains: Jurnal Gizi, Pangan dan Aplikasinya Vol. 9 No. 2 (2025)
Publisher : Universitas Islam Negeri Walisongo Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/ns.2025.9.2.28812

One of the most prevalent health problems in Indonesia is anemia, particularly among adolescent girls, where concerns about excessive weight gain may reduce adherence to iron supplementation. Spirulina is a potential alternative supplement rich in iron and nutrients that support hematopoiesis and may address these concerns. This study aimed to analyze the effect of spirulina supplementation on body weight in anemic adolescent female Wistar rats. This experimental study used 25 female Wistar rats divided into five groups: normal control (NC) received a standard BR diet, positive control (PC) received a low-iron diet to induce anemia, and three treatment groups received spirulina at doses of 25, 50, and 100 mg/kg body weight (T1–T3) for 21 days. Body weight was measured before anemia induction, after anemia induction, and following supplementation. The results showed a significant overall difference in body weight gain among the groups (p < 0.001), which was mainly driven by differences between the normal control and positive control groups. However, post hoc analysis indicated no significant differences in body weight gain between the positive control group and treatment groups 1, 2, and 3 (p > 0.05). Body weight in the treatment groups increased by 22.8–27 g, indicating recovery toward baseline values. Although these differences were not statistically significant, spirulina supplementation may contribute to anemia recovery, as reflected by improvements in body weight. In conclusion, spirulina shows potential as a nutritional supplementation strategy that does not induce excessive weight gain while supporting iron-related nutritional needs.

Laju Pertumbuhan, Biomassa, dan Produksi Fikosianin Arthrospira platensis Perairan Pulau Jawa Pada Variasi Salinitas Lestari, Mutia Dinda; Sajidan; Pangastuti, Artini
Bioscientist : Jurnal Ilmiah Biologi Vol. 13 No. 4 (2025): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v13i4.18387

This study aims to identify and determine the optimal salinity that can produce specific growth rates, maximum dry biomass production, and the highest phycocyanin content and productivity in local strains of A. platensis in the waters of Java Island. This study was conducted using three strains of Arthrospira platensis originating from Jepara, Bogor, and Yogyakarta with salinity variations of 10, 20, and 30 ppt and three replicates using walne fertilizer culture media. The cultures were cultivated for eight days to calculate the growth rate and measure the biomass and phycocyanin concentration. The results of this study showed that the biomass of A. platensis in all strains was maximum at 30 ppt. The specific growth rate of A. platensis strains JPR and BGR was fastest at 30 ppt, and phycocyanin production was highest at 20 ppt. Meanwhile, the MRP strain showed a fast growth rate at 10 ppt and the highest phycocyanin production at 30 ppt. Based on the results of this study, it can be concluded that each strain has a different strategy in responding to salinity in terms of growth rate, biomass, and phycocyanin production.

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