Volume 20 Issue 1

With over 20 years in pulp and paper, my career has been shaped by foundational research and teaching as well as by BioResources, a journal that has significantly supported my work. This editorial reflects on key stages in my academic journey and the pivotal role BioResources has played in advancing my research and connecting the global pulp and paper community.

As research scientists go, few rival the volume of work that Dr. Peter Hart produced. His career reflects his willingness to guide budding pulp & paper scientists when he was the Director of Fiber Technology and Innovation at WestRock, as well as an adjunct professor in the Department of Forest Biomaterials at North Carolina State University. He brought his wealth of knowledge to those working in industry and academia; a rarity for anyone with his acumen. His support to graduate research reflects the quality of the publications of researchers such as Dr. Ricardo Santos and Dr. Juliana Jardim; both of whom tackled challenging subjects related to lignin degradation kinetics in kraft pulping and lignin precipitation from kraft black liquor, respectively. In his last academic project, Dr. Hart invested his remaining life to support PhD work to study how lignin-carbohydrate complexes influence lignin precipitation from kraft black liquor. Dr. Hart provided opportunities for young scientists to achieve their goals and provided them with a safe space to learn within research.

To reduce plastic pollution, it is of interest to develop biodegradable molded fiber products from recovered cellulose-containing residues as an alternative to single-use plastics. Primary questions to be addressed include how to compound molded fiber products from the recycling of paper or cardboard and agricultural residual wastes via combined vacuum thermo-forming and post-drying or synergistic cold and hot press approaches. In addition, consumers will have high expectations regarding barriers for moisture and grease. It is proposed here to produce uniform barrier molded fiber products via a Pickering emulsion approach with chemically recycled waxes from thermolysis of waste polyolefins. It is further proposed to develop a closed-loop process for recyclable molded products and up-cycling lignocellulosic fibers reinforced biomass-derivable vitrimer bio-composites for sustainable packaging. The development of molded fiber products makes it possible to mitigate the usage of single-use plastics.

Sustainable aviation fuels (SAF) are alternatives to fossil fuels produced from biological or non-fossil feedstocks to reduce greenhouse gas emissions. In the alcohol-to-jet (ATJ) route, alcohol (ethanol, isobutanol, or butanol) dehydration is the key conversion step to create long-chain hydrocarbons. In this context, this Editorial deals with the ethanol-to-ethylene-to-jet route (EEJ) technology and challenges for producing SAF from lignocellulosic biomass waste (LCBW).

Today, Industry 5.0 can be regarded as the latest stage of industrial revolution, where collaboration between humans and smart technologies reaches a new level. This editorial presents insights into Industry 5.0. It explains the concept of Industry 5.0 according to the latest developments, in its three fundamental pillars: human-centric, sustainable, and resilient. Finally, it discusses how Industry 5.0 can contribute to sustainability.

This opinion paper advocates for project-based learning (PBL) and teaching as a way of preserving active learning in timber engineering education. A recent example of using PBL in a timber engineering course is presented. Its strengths and associated challenges are briefly highlighted, and some suggestions are provided for the adoption of such approaches.

Family groups in the ancient cultures of China, Korea, and Japan have toiled for generations in an effort to out-compete their neighbors in the pursuit of handmade paper products having better strength performance, in addition to flatness, uniform appearance, and other desirable attributes. Study of the history of the papermaking craft reveals a remarkable ability of ancient peoples to discover advantageous ways to prepare the cellulosic pulp, to improve its brightness, and to form uniform and strong paper sheets. But though the ancients knew how to “beat” the pulp to improve its bonding ability, there is no evidence of any of them having attempted to greatly “over-beat” some of the fiber, thus making nanocellulose, for potential addition to the fiber mixture. Why not? In this editorial, it is proposed that the ancients may have discovered that adding very highly fibrillated cellulose material to paper was not a good idea.