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DEVELOPMENT OF STRUCTURED W/O EMULSIONS JUST WITH THE USE OF CANDELILLA WAX
  • Anaid de la Peña-Gil,
  • Miriam Charo-Alonso,
  • Jorge Toro-Vazquez
Anaid de la Peña-Gil
Universidad Autonoma de San Luis Potosi
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Miriam Charo-Alonso
Universidad Autonoma de San Luis Potosi
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Jorge Toro-Vazquez
Universidad Autonoma de San Luis Potosi

Corresponding Author:[email protected]

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Abstract

We investigated the development of water-in-oil (W/O) emulsions just using CW, evaluating the effect of the water to CW oleogel ratio (40:60, 50:50, 60:40) and, at each ratio, the effect of the CW concentrations (0.75% to 3%). The emulsions were developed by shearing (60 s at 25°C) using an ultra-turrax type homogenizer. The emulsions were immediately evaluated and after 20 days of storage (25°C) for microstructure, water droplet diameter, emulsion stability through DSC freeze/thaw cycles, rheological properties, and X-ray measurements. The results showed that, at all water to oleogel ratios studied the CW developed structured W/O emulsions where the surface-active components of the CW (i.e., triterpenic alcohols, aliphatic alcohols, and fatty acids) stabilized the oil-water interface, while the n-alkanes and long chain esters formed an oleogel in the oil phase. Although, independent of the storage time, all the CW emulsions showed a frequency independent rheological behavior, after applying a strain above the G’-G” cross point, the 40:60 and 50:50 emulsions with 1.5% to 3% CW concentration showed the better rheological behavior and were the most stables, even after two freeze-thaw cycles. In particular, the 40:60 and 50:50 emulsion with 1.5% CW had a recovery profile similar to commercial mayonnaise. In contrast, independent of the CW concentration, the 60:40 emulsions showed the lowest recovery profiles and higher instability to freeze-thaw cycles. These results indicated that the CW is a multi-functional material able to develop structured W/O emulsions useful for the formulation of trans-free, stable low-fat edible spreads.
09 Jul 2023Submitted to Journal of the American Oil Chemists' Society
10 Jul 2023Submission Checks Completed
10 Jul 2023Assigned to Editor
10 Jul 2023Review(s) Completed, Editorial Evaluation Pending
10 Jul 2023Reviewer(s) Assigned
04 Aug 2023Editorial Decision: Revise Minor
14 Aug 20231st Revision Received
14 Aug 2023Assigned to Editor
14 Aug 2023Submission Checks Completed
14 Aug 2023Review(s) Completed, Editorial Evaluation Pending
15 Aug 2023Reviewer(s) Assigned
07 Sep 2023Editorial Decision: Revise Minor
12 Sep 20232nd Revision Received
12 Sep 2023Assigned to Editor
12 Sep 2023Submission Checks Completed
12 Sep 2023Review(s) Completed, Editorial Evaluation Pending
14 Sep 2023Editorial Decision: Accept