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All Journal Biodiversitas Journal of Biological Diversity Nusantara Bioscience
TURHADI TURHADI
Department of Biology, Faculty of Mathematics and Natural Sciences, Universitas Brawijaya. Jl. Veteran, Malang 65415, East Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Other

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Short Communication: Antioxidant activity and metabolite profiles of leaves and stem extracts of Vitex negundo MUHAMMAD ALFARABI; TURHADI TURHADI; TRINI SURYOWATI; NURIN AYU IMANELI; PRETTY OKTAVIANI SIHOMBING
Biodiversitas Journal of Biological Diversity Vol. 23 No. 5 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230550

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Abstract. Alfarabi M, Turhadi, Suryowati T, Imaneli NA, Sihombing PO. 2022. Short Communication: Antioxidant activity and metabolite profiles of leaves and stem extracts of Vitex negundo. Biodiversitas 23: 2663-2667. Many plantspecies could be used as natural sources of antioxidants, one of which is Vitex negundo or lagundi which grows widely in Southeast and South Asia. Due to the wide distribution of growth areas, so different habitats could be a factor causing variations in V. negundo bioactivity, especially antioxidant activity. In addition to environmental factors, extract derived from different plant parts could also contribute to variations in the content of metabolites that affect bioactivity. The objective of this study was to determine the antioxidant activity of leaf and stem extracts of V. negundo and evaluate the metabolites contained in the extracts. Antioxidant activity analysis was performed using the free radical 2,2-diphenyl-1-picrylhydrazyl (DPPH), and GC-MS analysis was used to identify bioactive metabolites. Leafand stem extract of V. negundo showed antioxidant activity directly proportional to the increasein extract concentration. A total of 8 metabolites were identified from the three extracts, i.e., acrolein, hydroquinone, sitosterol, naphthalene, pyrogallol, squalene, phytol, and hexadecenoic acid. There were correlations between antioxidant activity and the metabolites contained in the three extracts. It is suggested that the bioactivity of the extract is due to the interaction of these metabolites.
Bioactivity and metabolite profile of papaya (Carica papaya) seed extract MUHAMMAD ALFARABI; FORMAN ERWIN SIAGIAN; JAP MAI CING; TRINI SURYOWATI; TURHADI TURHADI; MICHELTHELIA SULIJAYA SUYONO; MONICA SYEFI FEBRIYANTI; FITRI BORU NAIBAHO
Biodiversitas Journal of Biological Diversity Vol. 23 No. 9 (2022)
Publisher : Society for Indonesian Biodiversity

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/biodiv/d230926

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Abstract. Alfarabi M, Siagian FE, Cing JM, Suryowati T, Turhadi, Suyono MS, Febriyamti MS, Naibaho FB. 2022. Bioactivity and metabolite profile of papaya (Carica papaya) seed extract. Biodiversitas 23: 4589-4600. Papaya (Carica papaya) seeds are part of the papaya plant which is a source of organic waste. However, there are many scientific studies thatstate the metabolites found in papaya seeds have various benefits in medical aspects. Accordingly, the objective of this study was to examine the antioxidant and cytotoxic activity of California and Bangkok type papaya seeds which are two local papaya types and widely consumed by the people of Indonesia. These papaya seeds'metabolite profiling was also conducted in this study therefore the antioxidant activity and cytotoxic mechanisms can be estimated. The 2,2-diphenyl-1-picrylhydrazyl (DPPH) method is used to investigate the antioxidant activity while 3- (4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) isused to investigate the cytotoxic effect of extract. Metabolites contained in papaya seeds were measured by Gas Chromatography-Mass Spectrometry (GC-MS) and Liquid Chromatography-Mass Spectrometry-QTOF (LC-MS/MS-QTOF). The results showed that California and Bangkok papaya seed extracts had antioxidant activity with IC50being 24.4 ppm and 22.2 ppm, respectively. Both extracts were also able to inhibit the growth of cancer cells (MCF-7) and did not render any toxic effects on non-cancer cells at low concentrations. The metabolites contained in the two extracts were alkaloid, phenol hydrocarbon, flavonoid, fatty acid, and terpenoid groups. This study showed that papaya seeds have the potential to be further developed in medical field, especially as natural antioxidants and natural cancer-preventing ingredients.
Molecular identification of Scopellaria marginata from East Java, Indonesia, based on trnL-UAA and trnL-trnF intergenic spacer regions TURHADI TURHADI; BRILIYAN NATALINA SUDARJAYANTI; FIFI MAR’ATUN SOLIHAH; RODIYATI AZRIANINGSIH; MUFIDAH AFIYANTI; ESTRI LARAS ARUMINGTYAS
Nusantara Bioscience Vol. 16 No. 1 (2024)
Publisher : Smujo International

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13057/nusbiosci/n160114

Abstract

Abstract. Turhadi, Sudarjayanti BN, Solihah FM, Azrianingsih R, Afiyanti M, Arumingtyas EL. 2024. Molecular identification of Scopellaria marginata from East Java, Indonesia, based on trnL-UAA and trnL-trnF intergenic spacer regions. Nusantara Bioscience 16: 111-118. Scopellaria marginata (Blume) W.J.de Wilde & Duyfjes is a wild species in Cucurbitaceae, which was recorded as new expanding their distribution in East Java, Indonesia. The trnL-UAA and trnL-trnF intergenic spacer (IGS) sequences of Scopellaria are still limited in publicly accessible databases. This study aimed to evaluate the trnL-UAA and trnL-trnF IGS sequences of S. marginata from Malang, East Java. Total DNA of S. marginata was used to amplify the trnL-UAA and trnL-trnF IGS region. Then, the PCR products are sequenced using bi-directional Sanger dideoxy sequencing to obtain the DNA sequence of those two regions. The results showed that the partial sequences of S. marginata for trnL-UAA ranged from 528 to 571 bp, while the sequence for trnF-trnL IGS ranged from 434 to 445 bp. The S. marginata samples are similar to S. marginata in the database with similarity levels of 97.14-97.50% and 98.36-98.61%, respectively, based on the trnL-UAA and trnL-trnF IGS. Both trnL-UAA and trnL-trnF IGS showed a Correct Assignment Rate (CAR) of 100% for S. marginata. Two-dimensional DNA barcoding with lengths 505 and 417 bp for trnL-UAA and trnL-trnF IGS proposed as specific barcodes for S. marginata. These results prove that Malang, East Java was an additional distribution area for S. marginata in Indonesia.
Co-Authors BRILIYAN NATALINA SUDARJAYANTI ESTRI LARAS ARUMINGTYAS FIFI MAR’ATUN SOLIHAH FITRI BORU NAIBAHO FORMAN ERWIN SIAGIAN JAP MAI CING MICHELTHELIA SULIJAYA SUYONO MONICA SYEFI FEBRIYANTI MUFIDAH AFIYANTI MUHAMMAD ALFARABI MUHAMMAD ALFARABI NURIN AYU IMANELI PRETTY OKTAVIANI SIHOMBING RODIYATI AZRIANINGSIH TRINI SURYOWATI TRINI SURYOWATI