COSMO–RS based prediction and screening of antimicrobial activities of deep eutectic solvents

In this study, 18 various types of DESs were screened using COSMO–RS analysis, those DESs consisted of urea, thymol, menthol, and six different fatty acids. To be able to achieve the objective of this study which is to investigate the antimicrobial activity of the various DESs screened, the COSMO–RS analysis was conducted using 4 bacterial cell wall components (2,6-diaminopimelic-acid, N-Acetyl-a-neuraminic-acid, N_Acetyl_Muramic_acid, N_Acetyl_D_Glucosamine), to observe the interaction of the DESs with the bacterial cell. As a result, the σ-profiling and the σ-potential showed that the most interactive DESs against microbial cells were Decanoic acid based. The importance of this study is due to its time-resource saving in the screening of biochemical materials

Green synthesis of silver nanoparticles using coffee extract for catalysis

The green synthesis method for producing metal nanoparticles has become more popular because it is more environmentally friendly and low cost. This study used a green approach to synthesize silver nanoparticles (AgNPs) using coffee Arabica bean's extract to reduce and stabilizing agents. The coffee extract was analyzed using GC-MS to identify the bioactive compounds in the extract, and Folin-Ciocalteu colorimetric test was done to find the total phenols in the extract. Later, the extract was used in the synthesis of AgNPs. Effects of synthesis parameters such as temperature, reaction time, pH, and amount of coffee extract on the formation of AgNPs were investigated. The formation of AgNPs was mainly observed using UV-Vis absorption spectroscopy. It was found that pH influenced the size of particles produced in which higher pH produce smaller particles than lower pH while other synthesis parameters mainly affected the yield of the AgNPs. The catalytic application of as-synthesized AgNPs was then evaluated in reducing methylene blue (MB) dye in a solution using NaBH4 as a reducing agent. The results show that the green-synthesized AgNPs were capable of catalyzing the reduction of MB dye in the solutio

Abstracts of the International Halal Science Conference 2023

This book presents the extended abstracts of the selected contributions to the International Halal Science Conference, held on 22-23 August 2023 by the International Institute for Halal Research and Training (INHART), IIUM, Malaysia in collaboration with Halalan Thayyiban Research Centre, University Islam Sultan Sharif (UNISSA), Brunei Darussalam. With the increasing global interest in halal products and services, this conference is timely. Conference Title:  International Halal Science ConferenceConference Acronym: IHASC23Conference Theme: Halal Industry Sustainability Through ScienceConference Date: 22-23 August 2023Conference Venue: International Islamic University (IIUM), MalaysiaConference Organizer: International Institute for Halal Research and Training (INHART), International Islamic University (IIUM), Malaysi