title: Edible applications of shellac oleogels: spreads, chocolate paste and cakes.
abstract: We demonstrate three potential edible applications of shellac oleogels as (i) a continuous oil phase for preparation of emulsifier-free, structured w/o emulsions (spreads), (ii) a replacer for oil-binders in chocolate paste formulations and (iii) a shortening alternative for cake preparation. Water-in-oil emulsions with up to 60 wt% water were prepared without the need for an emulsifier by simply using shellac oleogels as the continuous oil phase. The water droplets in these emulsions (size < 40 μm) were stabilized via interfacial and bulk crystallization of shellac. Chocolate paste prepared by complete replacement of an oil-binder and a partial replacement of palm oil (∼27%) with a shellac oleogel, showed no sign of 'oiling-out' when stored at elevated temperature (30 °C) for several weeks. Further, cakes prepared using oleogel-based w/o emulsions (20 wt% water) as a shortening alternative showed comparable functionalities (texture and sensory attributes) to the standard cake.
authors.affiliation: Vandemoortele Centre Lipid Science & Technology, Lab. of Food Tech. & Engg., Faculty of Bioscience Engg., Ghent University, Coupure Links 653, 9000 Gent, Belgium. Patel.Ashok@Ugent.be.
authors.forename: Ashok R
authors.initials: AR
authors.lastname: Patel
authors.forename: Pravin S
authors.initials: PS
authors.lastname: Rajarethinem
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Grędowska
authors.forename: Ozge
authors.initials: O
authors.lastname: Turhan
authors.forename: Ans
authors.initials: A
authors.lastname: Lesaffer
authors.forename: Winnok H
authors.initials: WH
authors.lastname: De Vos
authors.forename: Davy
authors.initials: D
authors.lastname: Van de Walle
authors.forename: Koen
authors.initials: K
authors.lastname: Dewettinck
mesh_terms: D002099:Cacao / Q000737:chemistry; D004655:Emulsions / Q000737:chemistry; D005503:Food Additives / Q000737:chemistry*; D005524:Food Technology; D009930:Organic Chemicals / Q000737:chemistry
chemical_list: D004655:Emulsions; D005503:Food Additives; D009930:Organic Chemicals; C016021:oleogels