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Wiwik Indrawati, Wiwik
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Phytochemical and Profiling of Bioactive Compounds from Beneng Taro (Xanthosoma undipes) Using Chromatography-Spectrometry Method Yuniarsih, Eko; Trisnawati, Desi; Saepudin, Aang Asep; Maulani, Tuti Rostianti; Rahmawati, Dian Suci; Lanita; Jufrinaldi; Indrawati, Wiwik
Indonesian Journal of Applied Research (IJAR) Vol. 7 No. 1 (2026): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v7i1.689

Abstract

Beneng taro (Xanthosoma undipes K. Koch) was one of the local taro varieties originating from Pandeglang, Banten, characterized by its yellow color and potential as a source of bioactive components. This study aimed to identify bioactive components in the form of secondary metabolite profiles in Beneng taro using liquid chromatography–tandem mass spectrometry (LC MS/MS) and to evaluate its antioxidant activity. The study consisted of several stages, namely sample preparation, extraction using ethanol and aquadest solvents, and characterization, including the determination of total flavonoid and phenolic contents, antioxidant activity using the DPPH method, and LC MS/MS profiling. The Beneng taro extract obtained using ethanol contained total flavonoids and phenolics of 34.64 mg QE/g and 3.78 mg GAE/g, respectively, which were higher than those of the aquadest extract, with total flavonoid and phenolic contents of 1.92 mg QE/g and 2.14 mg GAE/g, respectively. Antioxidant activity analysis showed that the ethanol extract exhibited stronger activity than the aquadest extract, with IC₅₀ values of 197.2 ppm and 227.5 ppm, respectively. LC-MS/MS profiling revealed 20 compounds in the ethanol extract and 15 compounds in the aquadest extract, which potentially possessed antibacterial, antioxidant, anticancer, and antidiabetic activities. These results suggested that Beneng taro had potential for development as an ingredient in food products.
Penurunan Kadar COD (Chemical Oxygen Demand) Air Sungai Cisadane Menggunakan Metode Fenton Adelina, Dina; Indrawati, Wiwik; Filosa, Aminudin; Hakim, Rusnia Junisa; S, Agustina Dyah; Ismet, Rhahmasari; Yullia, Nuke; Lita, Nurul
Jurnal Teknologi Vol 26, No 1 (2026): April 2026
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v26i1.8810

Abstract

The Cisadane River is one of the main water resources in Tangerang and surrounding areas. However, its water quality has declined due to domestic and industrial pollution, which increases the Chemical Oxygen Demand (COD) level. This study aimed to evaluate the effectiveness of the Fenton method in reducing COD levels in Cisadane River water and to determine the optimum reaction time for the treatment process. The experiment was conducted using 100 mL of river water sample treated with Fenton reagent consisting of FeSO₄ 0.3 M and H₂O₂ 0.8 M. The treatment was carried out at reaction times of 60, 120, 180, and 240 minutes, and COD levels were analyzed using a photometer. The results showed that the initial COD concentration of 495 mg/L decreased to 290 mg/L after 60 minutes, 195 mg/L after 120 minutes, 145 mg/L after 180 minutes, and 95 mg/L after 240 minutes. The highest COD removal efficiency was achieved at 240 minutes, with a reduction of 80.81%, and the final COD concentration met the domestic wastewater quality standard of 100 mg/L. In conclusion, the Fenton method was effective in reducing COD levels in Cisadane River water, with the optimum treatment time obtained at 240 minutes.
Co-Authors Abdul Azis Abdul Aziz Adelina, Dina Affandi, Lutfi Surya Albertus Sudirman, Albertus Andeva, Nalendra Anggeraini, Rinanda Ansari Adlin, Irman Any Kumastuti, Any Any Kusumastuti Apsoni, Rapi Arisandi, Regi Frandwi Astuti, Sri Habsari Puji Ayu Afifah, Dian Ayu, Eka Risdianti Asmaning Bambang Utoyo Cahyaningtyas, Susi Retna Dewi Riniarti Dimas, Muhammad Dyah Setyowati, Agustina Filosa, Aminudin Gulo, Exaudin Hakim, Rusnia Junisa Hakim, Rusnia Junita Indrawijaya, Budhi Irianti, Silviana Ismet, Rhahmasari Jakty Kusuma, Jakty Jufrinaldi Jufrinaldi, Jufrinaldi Junita Hakim, Rusnia Kususmastuti, Any Lanita Lita, Nurul Lutviyana Sari, Indri Made Same Mahhendra, Bawon Martin, A. Bram Muhammad Tahir Novi Safitri Nurmaida Nurmaida, Nurmaida Nurmayanti, Sri Oktami, Wantia Putra, Endriyana Raden Mohamad Herdian Bhakti Rahmawati, Dian Suci S, Agustina Dyah Saepudin, Aang Asep Sari, Resti Puspa Kartika Sari, Ulfah Sismita Sari, Sismita Siti Rahma Sudiyarmanto Sudiyarmanto Supriyatdi, Dedi TATI NURHAYATI Tina Marlina Trisnawati, Desi Tuti Rostianti Maulani Yani, Septi Yullia, Nuke Yuniarsih, Eko Zaqyah, Irene