Title
Reprint of "food-grade electrospinning of proteins"
Author
Nieuwland, M.
Geerdink, P.
Brier, P.
van den Eijnden, P.
Henket, J.T.M.M.
Langelaan, M.L.P.
Stroeks, N.
van Deventer, H.C.
Martin, A.H.
Publication year
2014
Abstract
Developing non-meat food products with an appealing structure is a challenge. In this study, we investigate the possibility to produce thin fibrils as building blocks for texturally interesting meat replacers. The technique applied is electrospinning - a technique which produces thin fibrils with a high aspect ratio. The spinning of proteins is notoriously difficult and most proteins cannot be spun under food-grade conditions. Only two proteins are known to spin under food-grade conditions. Zein was spun from ethanol, and gelatin from warm water. The current study looks into the possibility of using one of these proteins as a carrier for other proteins. With gelatin it was possible to electrospin a range of globular proteins, showing for the first time electrospinning of globular proteins in a food-grade way. Next steps in the progress towards industrial application are the fixation and alignment of the fibrillar structures and upscaling of the process. Industrial relevance The demand for high quality protein, that contains all essential amino acids, is growing. One of the challenges of alternative protein sources, such as plant storage protein, green leaf protein or insect protein, is to process it into a structurally appealing product. Fibrillar structure is acknowledged to play an essential role in giving texture and bite to protein products. Techniques for structuring include extrusion or shear cell texturizing. A technique on the nanoscale is not yet available. Such a technique can yield fibrils as building blocks for larger structures and in this way mimics meat. Electrospinning is one of the techniques that could fill that gap. © 2014 Elsevier Ltd.
Subject
Life Mechanics, Materials and Structures
FI - Functional Ingredients EAM - Equipment for Additive Manufacturing
ELSS - Earth, Life and Social Sciences TS - Technical Sciences
Food and Nutrition
Healthy Living
Carrier
Electrospinning
Food-grade
Gelatin
Proteins
Amino acids
Aspect ratio
Meats
Texturing
Essential amino acids
Fibrillar structures
Globular proteins
High aspect ratio
Storage proteins
Hexapoda
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http://resolver.tudelft.nl/uuid:348c5130-35a0-45c9-891f-af52a799d350
TNO identifier
516508
Publisher
Elsevier, Amsterdam
ISSN
1466-8564
Source
Innovative Food Science and Emerging Technologies, 24, 138-144
Document type
article