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All Journal ALKIMIA : Jurnal Ilmu Kimia dan Terapan Journal of Medical Laboratory in Infectious and Degenerative Diseases
Mohammad Rofik Usman
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Health Professions Immunology & microbiology Public Health Social Sciences

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Determination of Nitrite Levels in Boiled White and Purple Cabbage Based on Boiling Time Variations Eka Fitri Yanti; Nur Nadia Faridha; Bannan Muthi'tul Af'idah; Istiqomah; Mohammad Rofik Usman
ALKIMIA Vol 10 No 1 (2026): ALKIMIA
Publisher : SCIENCE AND TECHNOLOGY FACULTY OF UNIVERSITAS ISLAM NEGERI RADEN FATAH PALEMBANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19109/57vkzs84

Abstract

Cabbage is a type of vegetable that contains various vitamins such as vitamins A, C, and K. One of the chemical components found in cabbage is nitrite (NO₂). Nitrite is a nutrient formed naturally with concentrations depending on species variation, season, light, and fertilizer use. This study aims to determine the nitrite levels in boiled purple and white cabbage with varying boiling times using the UV-Vis spectrophotometric method. Additionally, this research evaluates whether the nitrite content in the boiled cabbage remains within the Acceptable Daily Intake (ADI). The extraction was carried out using distilled water with boiling time variations of 0, 5, 10, 15, and 20 minutes. Nitrite levels were determined using the UV-Vis spectrophotometric method. The nitrite content found in white cabbage for boiling durations of 0, 5, 10, 15, and 20 minutes were 1.672 ppm, 0.986 ppm, 1.037 ppm, 0.951 ppm, and 0.999 ppm, respectively. For purple cabbage, the levels were 1.627 ppm, <0.5 ppm, 0.624 ppm, 0.775 ppm, and <0.5 ppm, respectively. The nitrite contents in both white and purple cabbage were found to be safe according to the ADI value of 4.2 mg/kg for a person weighing 60 kg.
In-Silico Study Of Bioactive Compounds In Bawang Dayak (Eleutherine palmifolia (L) Merr.) Bulbs On The Main Protease Receptor Of COVID-19 (6LU7) As A Candidate For SARS-CoV-2 Antivirus Drug Ulfa Dwi Septiana; Septyaningtyas Eka Wulandari; Nabila Kamalia; Tiara Anjelina Hezni; Mohammad Rofik Usman; Lindawati Setyaningrum
Journal of Medical Laboratory in Infectious and Degenerative Diseases Vol. 3 No. 2 (2025): Desember
Publisher : LPPM Universitas dr. Soebandi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36858/jmid.v3i2.40

Abstract

: The COVID-19 viral disease is a new name given by the World Health Organization (WHO) to patients with the novel COVID-19 virus infection which was first reported from the city of Wuhan, China at the end of 2019. The COVID-19 pandemic is still a major problem in the world health. One antiviral regimen that is widely used to treat moderate to severe Covid- 19 patients is favipiravir. Many studies discuss alternative antiviral therapy for COVID-19 patients from active compounds contained in plants. One of the medicinal plants that has an antiviral effect on CoV-2 is Dayak onion (Eleutherine Palmifolia (L.) Merr). Consuming herbal plants can increase the body's immunity as the main key in preventing the Sars-Cov-2 virus. Purpose: This research aims to determine the effect of anchoring the active compound of Dayak onion bulbs on the growth of the corona virus on the main protease receptor for Covid 19 (6LU7). Methods: This type of research uses a molecular docking research method which consists of docking validation stages, a docking process and continues with docking visualization using Discovery Studio Visualizer and PyRx combined with Autodocktool Results: The results of the molecular docking simulation show that the Lysine sulfate compound has the lowest binding affinity value compared to Favipiravir, namely -4.75 kcal/mol with a Ki value of 96.41 μM and has the same interaction as the positive control ligand on the hydrophobic bond of MET A:165
Co-Authors Bannan Muthi'tul Af'idah Eka Fitri Yanti Istiqomah Hariyanto Lindawati Setyaningrum Nabila Kamalia Nur Nadia Faridha Septyaningtyas Eka Wulandari Tiara Anjelina Hezni Ulfa Dwi Septiana