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Biological Engineering

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Society for Biological Engineering (SBE)

SBE is a global technological community that promotes the integration of engineering with biology and realize its benefits through bioprocessing, biomedical, and biomolecular applications. SBE provides opportunities for interaction of engineers and scientists, develops products and services bring value to the broad biological engineering community, and infuses awareness of biological engineering among all functions and activities of AIChE.

Forest Bioproducts Division (FBP)

The Forest Bioproducts Division promotes knowledge sharing and networking on topics dealing with products obtained from forest resources and other lignocellulosic materials.

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Cellobiose Hydrolysis Using Acid-Functionalized Nanoparticles

Oct 18, 2011
Leidy Peña
Mineral acids have been used effectively for the pretreatment of cellulosic biomass to improve sugar recovery and promote its conversion to ethanol; however, substantial capital investment is required to enable separation of the acid, and corrosion-resistant materials are necessary. Disposal and...

Heterogeneous Catalysts in the Dehydration of Fructose to HMF

Oct 18, 2011
Sylvia Reiche
Several crucial steps in the upgrading of biomass-derived raw materials involve acid catalyzed reactions, such as the hydrolysis of cellulose or the dehydration of sugars. Although heterogeneous catalysts are desired in large scale industrial processes, their application is limited by several...

Cellulase Inhibition by Pretreatment-Released Biomass Degradation Products

Oct 18, 2011
G. Peter van Walsum
The influence of pretreatment chemistry and the severity of dilute acid pretreatment on the subsequent enzymatic hydrolysis of soluble oligomer-derived and insoluble crystalline cellulose using a commercial enzyme preparation (Novozymes) was investigated. A dilute acid pretreatment was performed on...

Mechanistic Investigation of Drug Release From Asymmetric Membrane Tablets

Oct 18, 2011
Mary T. am Ende
An asymmetric membrane (AM) tablet was developed for a soluble model compound to study the in vitro drug release mechanisms in challenge conditions, including osmotic gradients, concentration gradients, and under potential coating failure modes. Porous, semipermable membrane integrity may be...

Lignin Depolymerization and Deoxygenation In Ionic Liquids

Oct 18, 2011
Blair J. Cox
Lignin, an amorphous aromatic biopolymer that comprises up to 30% of plant matter, was dissolved and depolymerized in ionic liquids under acidic conditions. The acidic ionic liquid 1-methylimidazolium chloride (HMIMCl) acts as a combination solvent and catalyst that facilitates degradation of...

Steam Reforming of Ethanol-Phenol Mixture As a Model for Biomass Tar

Oct 17, 2011
Guido Busca
Introduction Hydrogen is produced by biomasses through a variety of pyrolysis and gasification processes. Most of these processes are hampered by the coproduction of tars, a mixture of heavy compounds that may result in fouling of heat exchangers and reactors. A steam reforming step is needed to...

Wood Pellets Self-Heating During Storage

Oct 17, 2011
Wendi Guo
Accidental fires in wood pellets silos happen frequently in the last five years. Experiments were carried out in this work at temperature range of 100 o C to 200 o C to study wood pellets chemical oxidation process. A self-heating model was developed to simulate the self-heating process using the...

Quality by Design for Generic Drugs

Oct 17, 2011
Yingxu Peng
To facilitate the implementation of Quality by Design (QbD) for abbreviated new drug application (ANDA), Office of Generic Drugs (OGD) has developed mock QbD examples for immediate release (IR) and modified release (MR) dosage forms. This presentation will provide insight into OGD’s current...

Effect of Pressure and Heating Rate On Biomass Devolatilization and Gasification

Oct 17, 2011
Pradeep K. Agrawal
The goal of present study is to characterize the effect of pressure and heating rate on the devolatilization behavior of different biomass species. Three biomass species (southern Pine, corn stover, and switchgrass) were studied. A combination of two complementary gasification devices are utilized...

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