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Introduction
Publications
Publications (10)
Objective
To find diets optimised on nutrition and environmental impact close to the current Dutch diet and to identify the most effective and acceptable options for mitigating environmental impact.
Design
Linear programming was used to optimise diets of Dutch men and women aged 9–69 years, divided into ten age–gender groups. The analysis included...
Purpose
Eating healthier or vegetarian and vegan diets are suggested options to reduce the environmental impact of the current diet. In this paper, we demonstrate a method that is able to identify diets with reduced environmental impact and are more similar to the current diet than predetermined scenarios. All diets were adequate and consisted of c...
Background: This study aims to find diets with low price and low climate impact, yet fulfilling all nutritional requirements. Methods: Optimization by linear programming. The program constrains 33 nutrients to fulfill Dutch dietary requirements. In a second cycle, the upper boundary for climate impact through greenhouse gas emissions (GHGE) is set...
Little or no environmental benefit can be gained by replacing dairy products with non-dairy foods in the diet of adult men and women. This is the conclusion of an analysis using the Optimeal® optimisa- tion program. The analysis shows that as a source of nutrients dairy products are just as environmentally efficient as the package of pro- ducts nee...
Met behulp van het programma Optimeal® is aangetoond dat er nauwelijks milieuwinst te behalen is bij vervanging van zuivel in de voeding van volwassen Nederlandse mannen en vrouwen. De reden is dat zuivel een even milieu-efficiënte bron van nuttige voedings- stoffen is als het productenpakket dat nodig is om de vervanging te compenseren. Bij vlees...
To evaluate the greenhouse gas emission (GHGE) of diets in Dutch girls, boys, women and men and to explore associations with diet composition.
Descriptive analyses for the total population as well as stratified for gender, age and dietary environmental load.
The Netherlands.
Dutch children and adults aged 7-69 years (n 3818).
The GHGE of daily diet...
Purpose
In this article, we present an innovative way of deriving comparable functional systems for comparative life cycle assessments (LCAs) of food products. We define the functional unit as the contribution of one or more foods to the nutrient composition of a weekly diet and, after a product substitution, employ a product system expansion appro...
Food choices influence health status, but also have a great impact on the environment. The production of animal-derived foods has a high environmental burden, whereas the burden of refined carbohydrates, vegetables and fruit is low. The aim of this study was to investigate the associations of greenhouse gas emission (GHGE) and land use of usual die...
Images of the enzymes glucoamylase 1 and glucoamylase 2 and G1C (a proteolytically derived C-terminal fragment of glucoamylase 1) have been obtained by scanning tunnelling microscopy (STM). The images of glucoamylase 2 and G1C show that these proteins are nearly spherical globular proteins. In contrast, images of glucoamylase 1 show that it is a du...
The primary structure of glucoamylase 1 (glucan-1,4-α-glucosidase, EC 3.2.1.3) from Aspergillus niger consists of a catalytic and a binding domain separated by an O-glycosylated peptide 40 amino acid residues in length. Scanning tunnelling microscopic (STM) images of glucoamylase 2 (the catalytic domain with linker peptide) and a proteolytically cl...
