Karin Rosalinda

Name: Karin Rosalinda
Batch: 2023
E-mail: karin.rosalinda@gmail.com
Interest: Food Preservation, Secondary Metabolite Production, Nanoparticle Development, Industrial Biotechnology

Research Experience
My research focuses on optimizing the synthesis of edible coating nanoparticles using the ionic gelation method, with chitosan as the base and lactic acid bacteria biosurfactant as an additive. The goal is to enhance the antimicrobial properties, stability, and homogeneity of these nanoparticles. Using Response Surface Methodology (RSM), I optimized the concentration of the edible coating nanoparticles and performed various analyses, including microbial count tests on strawberry surfaces, LC-MS, antifungal analysis, particle size distribution, zeta potential, FTIR, and physiochemical properties. The results demonstrated that the biosurfactant-enhanced nanoparticles created a homogeneous coating, which successfully preserved strawberries for up to 12 days at 4°C.

Skills
– Microbial Cultivation and Characterization (Macroscopic, Microscopic, and Biochemical)
– 16S rRNA and ITS Sequencing
– Polymerase Chain Reaction (PCR)
– Dynamic Light Scattering (DLS)
– Liquid Chromatography-Mass Spectrometry (LC-MS)
– Fourier Transform Infrared Spectroscopy (FTIR)
– Response Surface Methodology (RSM)
– Antimicrobial and Anti-adhesive Tests (Microdilution Assay)
– Confocal Laser Microscopy
– Nanoparticle Synthesis
– Post-harvest Handling and DNA Extraction

Testimonial
Studying at ITB for about five years (as a fast-track student) has been a truly rewarding experience. ITB provided me with the freedom to explore science in an open and flexible environment, which helped me develop both academically and personally. I am incredibly grateful for the guidance and knowledge I gained from my lecturers, especially my supervisor, who played a key role in shaping my research journey. Additionally, the supportive and collaborative atmosphere at ITB, with friends and colleagues by my side, made my learning experience even more meaningful. ITB has inspired me to love science even more, and I’m proud to have studied here.