Use Of Bio-based Materials Research Articles

Study of Two Hemp Concrete Walls in Real Weather Conditions

The use of bio-based materials in construction is significantly improving. One of the bio-based materials is hemp concrete which is a composite obtained by mixing a binder and the non-fibrous part of hemp, called shiv. This specific hemp concrete developed by Vicat is made with Prompt Natural Cement (PNC) as binder. In situ hygro-thermal performance assessment of this material was performed in this paper. For this both simulation and experimental measurements are conducted in parallel. In the experimental study two PASSYS test facilities are used. They are parallelepiped test cells around 30 m3 volume each. One test wall is built with the interesting façade while the five other walls are highly insulated and are non-tested walls. Test walls are subject to weather solicitations outside and hydrothermal regulation inside. The two test cells are next to each other, and the hempcrete wall is south oriented. The only difference between cells is the external coating in order to analyze the coating effect on moisture transfer: one cell is supplied with traditional hemp lime render and the other one with cement based render. In parallel, 2D numerical simulation of hygrothermal behavior of the wall was carried out using a coupled heat and moisture transport model with boundary condition from the monitored data (outside weather conditions and inside regulation). Results show a good agreement between measured and simulated data.

Study the development of mould on prompt natural cementbased hemp concrete

The use of bio-based materials in construction is significantly improving. One of the bio-based materials is hemp concrete which is a composite obtained by mixing a binder and the nonfibrous part of hemp, called shiv. This specific hemp concrete developed by Vicat is made with Prompt Natural Cement (PNC). Hemp concrete is used for its insulating properties and its capacity to control humidity which is obtained due to the hydrophilicity of shiv. Therefore to reach the same level of binder hydration more water is needed in hemp concrete than in traditional concretes. This excess of water combined with insufficient drying of hemp concrete may quickly lead to the development of mould. In fact, the binder alkalinity is not sufficient to stop the microorganism development. This study presents results from two tests to quantify mould development in PNC-based hemp concrete. The first series of test was carried out respectively on the shiv only and on hemp concrete specimens which were a few hours and a few days old. During the first 24 hours the number of microorganisms identified on hemp concrete specimens decreases more significantly than on the raw shiv. So the hemp concrete formula prevents concrete from developing mould. A second part of the study was carried out on a hemp concrete of same formula than previously but coated with two different renders: one coating permeable to both liquid and vapour water while the second one is permeable to vapour water but not to liquid water. The coated hemp concretes had been exposed to external conditions for four seasons. After one year, some samples were removed in order to study the microorganism development. The tests show that the exterior coating must be well chosen. Using a waterproof coating which is permeable to moisture does not present development of mould.

Use of biobased materials for modified atmosphere packaging of short and medium shelf-life food products

The research objective was to evaluate the performance of biobased plastics for modified atmosphere packaging (MAP) both on laboratory and industrial scales. Therefore the shelf-life (4 °C) of rumpsteak, ham sausage, filet de saxe, grated cheese and pre-fried fries that were MAP-packed in poly(lactic acid) (PLA) and cellulose-based multilayer packages was evaluated and compared with their shelf-life when packed in conventional materials. Furthermore, tests were performed on industrial packaging lines. The biobased packages showed sufficient gas-barrier to guarantee the shelf-life of MAP-packed food products, even when materials with lower barrier properties were used, but for rumpsteak and ham sausage, different light permeabilities of the packaging materials led to more discoloration. Furthermore, the biobased materials performed well on the industrial packaging machines, but seemed too brittle to hold larger contents. This study shows promising results toward the application of biobased packaging materials for different food products. Environmental concerns regarding food packaging have led to the development of more sustainable alternatives. One of these alternatives are biobased materials. This research shows that several biobased plastics can contain and protect the food as well as maintaining its sensory quality. The biobased packages showed sufficient gas barrier to guarantee the shelf-life of the MAP packed food products, even when materials with lower barrier properties were used. Furthermore, case studies at different companies (on industrial packaging lines) show that a successful entrance in the market will not be hindered by technical problems.

GreenPremium Prices Along the Value Chain of Biobased Products

Industrial BiotechnologyVol. 10, No. 2 Industry ReportsGreenPremium Prices Along the Value Chain of Biobased ProductsMichael Carus, Asta Eder, and Janpeter BeckmannMichael CarusSearch for more papers by this author, Asta EderSearch for more papers by this author, and Janpeter BeckmannSearch for more papers by this authorPublished Online:15 Apr 2014https://doi.org/10.1089/ind.2014.1512AboutSectionsView articleView Full TextPDF/EPUB ToolsPermissionsDownload CitationsTrack CitationsAdd to favorites Back To Publication ShareShare onFacebookTwitterLinked InRedditEmail View articleFiguresReferencesRelatedDetailsCited byBiocomposites: A review of materials and perceptionMaterials Today Communications, Vol. 31Inattention, availability bias, and attribute premium estimation for a biobased product20 September 2021 | Agricultural Economics, Vol. 53, No. 2Consumers’ preferences for bioplastic products: A discrete choice experiment with a focus on purchase driversJournal of Cleaner Production, Vol. 330Unlocking the Global Potential of Waste Biorefining: Scaling Up or Scaling Down?2 September 2022Optimal Pricing and Green Product Design Strategies in a Sustainable Supply Chain Considering Government Subsidy and Different Channel Power Structures11 November 2021 | Sustainability, Vol. 13, No. 22Consumer willingness to pay for bio-based products: Do certifications matter?International Journal of Production Economics, Vol. 240Exploring perceptions of environmental professionals, plastic processors, students and consumers of bio-based plastics: Informing the development of the sectorSustainable Production and Consumption, Vol. 26The effects of green nudges on consumer valuation of bio-based plastic packagingEcological Economics, Vol. 178Potential Raw Materials and Production Technologies for Biorefineries19 October 2020Greening products in a supply chain under market segmentation and different channel power structuresInternational Journal of Production Economics, Vol. 223Innovation potentials triggered by glycoscience researchCarbohydrate Polymers, Vol. 233Consumers’ Acceptance of a Bio-circular Automotive Economy: Explanatory Model and Influence Factors12 March 2020 | Sustainability, Vol. 12, No. 6Bioeconomy as a Circular and Integrated System7 March 2020Novel hybrid composite based on bio-PET with basalt/carbon fibreIOP Conference Series: Materials Science and Engineering, Vol. 634, No. 1Development of Sustainable and Cost-Competitive Injection-Molded Pieces of Partially Bio-Based Polyethylene Terephthalate through the Valorization of Cotton Textile Waste19 March 2019 | International Journal of Molecular Sciences, Vol. 20, No. 6Analysis of Standards, Certifications and Labels for Bio-based Products in the Context of Sustainable BioeconomyInternational Journal of Standardization Research, Vol. 17, No. 1A Governance Framework for a Sustainable Bioeconomy: Insights from the Case of the German Wood-based Bioeconomy21 January 2018Towards a sustainable innovation system for the German wood-based bioeconomy: Implications for policy designJournal of Cleaner Production, Vol. 172Can bio-based attributes upgrade a brand? How partial and full use of bio-based materials affects the purchase intention of brandsJournal of Cleaner Production, Vol. 162Biogenic product alternatives for children: Consumer preferences for a set of sand toys made of bio-based plasticSustainable Production and Consumption, Vol. 10Acceptance of bio‐based products in the business‐to‐business market and public procurement: Expert survey results25 October 2016 | Biofuels, Bioproducts and Biorefining, Vol. 11, No. 1Sustainability of biofuels and renewable chemicals production from biomassCurrent Opinion in Chemical Biology, Vol. 29Commercial Development of Fermentation Processes23 October 2015 Volume 10Issue 2Apr 2014 InformationCopyright 2014, Mary Ann Liebert, Inc.To cite this article:Michael Carus, Asta Eder, and Janpeter Beckmann.GreenPremium Prices Along the Value Chain of Biobased Products.Industrial Biotechnology.Apr 2014.83-88.http://doi.org/10.1089/ind.2014.1512Published in Volume: 10 Issue 2: April 15, 2014PDF download

Synthesis and Application of Carbonated Fatty Acid Esters from Carbon Dioxide Including a Life Cycle Analysis

Carbon dioxide can be used in various ways as a cheap C1 source. However, the utilization of CO2 requires energy or energy-rich reagents, which leads to further emissions, and therefore, diminishes the CO2-saving potential. Therefore, life cycle assessment (LCA) is required for each process that uses CO2 to provide valid data for CO2 savings. Carbon dioxide can be incorporated into epoxidized fatty acid esters to provide the corresponding carbonates. A robust catalytic process was developed based on simple halide salts in combination with a phase-transfer catalyst. The CO2-saving potential was determined by comparing the carbonates as a plasticizer with an established phthalate-based plasticizer. Although CO2 savings of up to 80 % were achieved, most of the savings arose from indirect effects and not from CO2 utilization. Furthermore, other categories have been analyzed in the LCA. The use of biobased material has a variety of impacts on categories such as eutrophication and marine toxicity. Therefore, the benefits of biobased materials have to be evaluated carefully for each case. Finally, interesting properties as plasticizers were obtained with the carbonates. The volatility and water extraction could be improved relative to the epoxidized system.

Vegetable oils as lube basestocks: A review

The depletion of the world’s crude oil reserve, increasing crude oil prices, and issues related to conservation have brought about renewed interest in the use of bio-based materials. Emphasis on the development of renewable, biodegradable, and environmentally friendly lubricants has resulted in the widespread use of natural oils and fats. Vegetable oils are promising candidates as base fluid for eco-friendly lubricants because of their excellent lubricity, biodegradability, viscosity-temperature characteristics and low volatility. In view of agriculture based Indian economy, there is a great potential of producing vegetable oil based lubricants, which has ecological compatibility in addition to technical performance. However, suitability of the vegetable oils for a specific application either needs chemical modification or may be used as it is with additive blending route in order to get basestocks as per specifications for a particular end use application. Key words: Biolubricants, vegetable oils, biodegradable, renewable.

Seeking consumers for industrial biotechnology

Industrial BiotechnologyVol. 7, No. 3 COMMUNICATIONSSeeking consumers for industrial biotechnologyFrank J. WalterFrank J. WalterSearch for more papers by this authorPublished Online:1 Jul 2011https://doi.org/10.1089/ind.2011.7.190AboutSectionsPDF/EPUB Permissions & CitationsPermissionsDownload CitationsTrack CitationsAdd to favorites Back To Publication ShareShare onFacebookTwitterLinked InRedditEmail "Seeking consumers for industrial biotechnology." , 7(3), pp. 190–191FiguresReferencesRelatedDetailsCited byUnraveling Dutch citizens’ perceptions on the bio-based economy: The case of bioplastics, bio-jetfuels and small-scale bio-refineriesIndustrial Crops and Products, Vol. 106Can bio-based attributes upgrade a brand? How partial and full use of bio-based materials affects the purchase intention of brandsJournal of Cleaner Production, Vol. 162Consumer perception of bio-based products—An exploratory study in 5 European countries18 June 2021 | NJAS: Wageningen Journal of Life Sciences, Vol. 77, No. 1 Volume 7Issue 3Jun 2011 InformationCopyright 2011, Mary Ann Liebert, Inc.To cite this article:Frank J. Walter.Seeking consumers for industrial biotechnology.Industrial Biotechnology.Jun 2011.190-191.http://doi.org/10.1089/ind.2011.7.190Published in Volume: 7 Issue 3: July 1, 2011PDF download

Biobased Products and the LEED® Rating System

Abstract At the beginning of the 20th century, over 40% by weight of all the materials consumed through the production of goods within the United States were comprised of renewable resources (Matos...

Potential Food Applications of Biobased Materials. An EU-Concerted Action Project

The objective of the study was to ascertain the state of the art with regard to the applicability of biobased packaging materials to foods and to identify potential food applications for biobased materials. The study revealed relatively few examples of biobased materials used as primary, secondary or tertiary packaging materials for foods. This is due to the fact that published investigations on the use of biobased materials are still scarce, and results obtained remain unpublished because of commercial pressures. The scientific literature contains numerous reports on applications of edible films and coatings to food but novel commercial applications of these are scarce. Based on information currently available on the properties of biobased packaging materials the study identified products in the fresh meat, dairy, ready meal, beverage, fruit and vegetable, snack, frozen food and dry food categories where conventional packaging may be replaced by biobased packaging.