Publications by authors named "I B Clemmensen"

The efficient valorization of lignin is crucial if we are to replace current petroleum-based feedstock and establish more sustainable and competitive lignocellulosic biorefineries. Pulp and paper mills and second-generation biorefineries produce large quantities of low-value technical lignin as a by-product, which is often combusted on-site for energy recovery. This Review focuses on the conversion of technical lignins by oxidative depolymerization employing heterogeneous catalysts.

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Background: Large portion sizes have been associated with large energy intake, which can contribute to the development of overweight and obesity. Portion sizes of non-home cooked food have increased in the past 20 years, however, less is known about portion sizes of home-cooked food.

Aim: The aim of the study was to assess if the portion sizes measured in calories in Danish cookbook recipes have changed throughout the past 100 years.

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Background: 'Neighbour smoke' is transfer of secondhand smoke between apartments including shared areas, such as hallways, community rooms and stairwells in multiunit dwellings and is an emerging issue for public health and health equity.

Objective: To describe the prevalence of exposure to neighbour smoke in Denmark.

Methods: A population-based sample of 5049 respondents (2183 in multiunit dwellings) living in Denmark aged ≥15 years completed a questionnaire in 2010 on tobacco-related behaviour and exposure to secondhand smoke.

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Introduction: Tobacco smoking is an important cause of premature death and morbidity in Denmark. It is therefore important to monitor tobacco consumption. In this paper, tobacco consumption in Denmark is illustrated by two methods: sale of tobacco products and smoking habit surveys.

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