Both consumer and industrial electronics have become increasingly complex and advanced in recent years. High performance semiconductor devices are essential to the function of these electronics, which is why rapid growth of the microelectronics industry and major technological advancements in this field …

Dried Tetraselmis chuii biomass has potential as flavoring agent for the development of plant-based seafood alternatives because of its seafood-like aroma and strong umami taste. Depending on the cultivation conditions, microalgae can adapt their metabolism, resulting in a change in biochemical composition. …

The biodiversity in the Netherlands is at an all-time low, in 2020 this was at a level of 15% especially while compared to Europe’s average of 40%. The biggest cause for this is intensive agriculture and lack of livable space for a wide variety of plants and animals. In the agricultural sector this is …

Plastic is one of the biggest contributors to pollution of the planet. Due to the low recyclability of oil-based plastics, most plastic is being disposed into the environment. According to plastic oceans, 10 million tons of plastic are dumped into oceans annually. Currently, researchers are developing …

This graduation report describes a research project at the research group metabolomics of the Leiden center of Applied Biosciences (LCAB). The aim of this project was to develop a GC-MS method for the identification of red swamp crayfish pheromones (Procambarus clarkii). Once this method has been developed, …

Kombucha is a drink made from fermented sweetened tea. Kombucha has a sweet and sour taste, it is slightly sparkling and in recent years, the drink has become increasingly popular in the western world. This surge in popularity is in part due to the supposed health benefits. The exact chemical composition …

Het doel van dit onderzoek was om een geschikte monstervoorbewerkingsmethode en analysemethode voor untargeted metabolomics in zwarte neushoorn feces ontwikkelen en valideren. Het subdoel van deze onderzoek is verschillen aantonen tussen verschillende zwarte neushoorns. De methode werd gevalideerd doormiddel …

Samenvatting In dit afstudeerproject is onderzoek verricht naar de wijze waarop degradatie van archeologische vondsten in depots voorkomen en verholpen kan worden. De aanleiding voor het onderzoek zijn de controles die ArcheoCare heeft uitgevoerd op archeologische vondsten in depots. Daaruit is gebleken …

An attempt was made to develop a method for the determination of volatile organic compounds (VOCs) in air by gas chromatography mass spectrometry (GC-MS) analysis and chemical sample desorption of the 3M 3500 passive diffusion sampler. The method included a complex mixture of 205 polar and non-polar …

Alzheimer’s disease is the leading cause of dementia affecting over 46 million worldwide, yet contemporary medication is unable to prevent or slow its neurodegeneration. Recently, fucosterol and saringosterol, two phytosterols from brown macroalgae, have emerged as possible mediators of the disease. …