Claim Missing Document
Check
Articles

Found 4 Documents
Search

Screening and Identification of Xylanase Enzyme-Producing Bacteria in Peuyeum Cassava with 16S rRNA Gene Marker method Fenti Fatmawati; Muhammad Nur Abdillah; Astri Fatmasari; Yuni Dwi Mulyaningsih
Jurnal Kartika Kimia Vol 2 No 1 (2019): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, Jenderal Achmad Yani University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.687 KB) | DOI: 10.26874/jkk.v2i1.22

Abstract

Peuyeum comes from cassava which is an agricultural commodity that is widely grown in Indonesia as a food which is source of carbohydrates. The types of polysaccharides that compose cassava are starch, cellulose and hemicellulose in the form of xylan. Xylanase is a xylanolytic enzyme that can hydrolyze xylan. The bacteria producing xylanase enzyme has been isolated from peuyeum which is thought to affect the fermentation process. Peuyeum contains starch so that it is one of the sources of the amylase enzyme. But there has never been a study of peuyeum's xylanase enzyme screening. The purpose of this study was to isolate xylanase-producing bacteria on peuyeum and identify these bacterial species by analyzing the 16S rRNA gene so that it could become a new source in the search for enzymes. This study consisted of several stages, namely bacterial isolation, xylanase enzyme screening, morphological testing, bacterial DNA isolation, sequencing, bacterial identifikation with the phylogenetic tree method. Xylanase enzyme producing bacteria in peuyeum has been successfully isolated. Based on the results of phylogenetic tree analysis it was found that XF1 bacteria had the closest homology to Bacillus cereus with 99% similarity.
Determination Of Residual Hazardous Chemical Concentrations In Pharmaceutical Chemistry Laboratory Solid Waste Using Conventional Titration Methods Muhammad Nur Abdillah
Jurnal EduHealth Vol. 15 No. 03 (2024): Jurnal EduHealt (September), Year 2024
Publisher : Sean Institute

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

Abstract

Chemical laboratory waste often contains hazardous chemicals that can pose risks to the environment and human health if not properly managed. This study evaluates the residual chemical concentrations in solid laboratory waste from pharmaceutical chemistry labs using conventional acid-base titration methods. The objective is to determine the exposure levels of acidic and basic chemicals in solid waste and assess the accuracy and precision of the analytical methods. Samples tested included filter paper, wiping cloths, and absorbent cloths, with results showing acidic chemical concentrations up to 0.998 M and basic chemical concentrations up to 0.344 M. The titration method demonstrated high accuracy with recovery percentages of 99.00% for acid addition and 99.50% for base addition, and excellent precision with RSD percentages of 0.02% and 0.04%, respectively. The study recommends separating waste based on chemical type, using appropriate absorbent materials, providing regular training for laboratory personnel, and integrating modern technology into waste management practices. These findings offer critical insights to improve laboratory waste management practices, aiming to minimize environmental impacts and health risks.
Assessment Of Potential Clean Water Sources Meeting Criteria For Feasibility Study Of Establishing A Hospital In The Samarang Region Along The New Ibrahim Aji Road Muhammad Nur Abdillah
Jurnal EduHealth Vol. 14 No. 04 (2023): Jurnal eduHealt, 2023, December
Publisher : Sean Institute

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

Abstract

This report assesses the water conditions and feasibility for both residents and hospitals in the Samarang area adjacent to the new road, Jl. Ibrahim Aji. The objective is to determine if the water conditions within the hospital comply with existing regulations. The research conducted for this report is of a descriptive nature. Based on the conducted interviews, it was revealed that the water supply in the vicinity of Jl. Ibrahim Aji is provided by a local water service, which, upon further investigation, draws its water from the Thunder Mountain springs. Organoleptic analysis suggests that this water is suitable for bathing, cooking, and other household needs. Regarding water sources used by hospitals, they utilize water from springs, rivers, lakes, and groundwater. However, it is imperative to ensure compliance with applicable standards. Based on the findings, it can be concluded that the groundwater in the area appears visually suitable for use, but further examination is required to assess its compliance with chemical, microbiological, and radiation safety criteria.
Evaluation of Well Water Sources in the Residential Area of Sukaregang, Garut, in Relation to Disease Patterns and Contamination by the Leather Processing Industry Muhammad Nur Abdillah
Jurnal EduHealth Vol. 14 No. 04 (2023): Jurnal eduHealt, 2023, December
Publisher : Sean Institute

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

Abstract

This study conducts a comprehensive evaluation of well water sources in the Sukaregang residential area, Garut, with a particular focus on the repercussions of disease patterns and contamination attributed to the leather processing industry. The rapid growth of settlements and intensified industrial activities in this region has raised concerns regarding public health and environmental sustainability. The primary objective is to assess well water quality, crucial for the local population, by employing methodologies such as water sampling, laboratory analyses, and community health surveys. The results reveal evidence of well water contamination by waste from the leather processing industry, showcasing a significant correlation with an upsurge in disease patterns within the community. This research pursues dual objectives: first, identifying and analyzing the extent of well water contamination by leather industry waste in Sukaregang, and second, evaluating potential health impacts stemming from the consumption of contaminated well water. The anticipated outcomes seek to establish a robust foundation for the formulation of sustainable environmental and public health policies tailored to the specific dynamics of the Sukaregang residential area in Garut