Spray Drying: Principles and Applications

Joshi, Sandeep; Mohapatra, Asutosh; Singh, Lavika; Sahu, Jatindra K.

doi:10.1002/9781119776437.ch5

Cited by 3 publications

(1 citation statement)

References 81 publications

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“…Various methods, such as spray drying, roller drying or freeze drying, are available [145]. Depending on the composition of the matrix, e.g., if it contains fibers, the spray drying option is not available [146]. Furthermore, it must be taken into account that the thermal load during drying is kept as low as possible in order to avoid a subsequent negative change in the printing material, e.g., through the formation of Maillard products [145,147].…”

Section: Process Concept For Enzyme-assisted Circular Additive Manufa...mentioning

confidence: 99%

Enzyme-Assisted Circular Additive Manufacturing as an Enabling Technology for a Circular Bioeconomy—A Conceptual Review

Protte-Freitag,

Gotzig,

Rothe

et al. 2024

Sustainability

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Additive manufacturing (AM) is a decisive element in the sustainable transformation of technologies. And yet its inherent potential has not been fully utilized. In particular, the use of biological materials represents a comparatively new dimension that is still in the early stages of deployment. In order to be considered sustainable and contribute to the circular economy, various challenges need to be overcome. Here, the literature focusing on sustainable, circular approaches is reviewed. It appears that existing processes are not yet capable of being used as circular economy technologies as they are neither able to process residual and waste materials, nor are the produced products easily biodegradable. Enzymatic approaches, however, appear promising. Based on this, a novel concept called enzyme-assisted circular additive manufacturing was developed. Various process combinations using enzymes along the process chain, starting with the preparation of side streams, through the functionalization of biopolymers to the actual printing process and post-processing, are outlined. Future aspects are discussed, stressing the necessity for AM processes to minimize or avoid the use of chemicals such as solvents or binding agents, the need to save energy through lower process temperatures and thereby reduce CO2 consumption, and the necessity for complete biodegradability of the materials used.

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