Effect of Protein-Lipid-Salt Interactions on Sodium Availability in the Mouth and Consequent Perception of Saltiness: As Affected by Hydration in Powders


Yucel U., Peterson D. G.

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY, cilt.63, sa.34, ss.7494-7498, 2015 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 63 Sayı: 34
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1021/acs.jafc.5b02312
  • Dergi Adı: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.7494-7498
  • Anahtar Kelimeler: salt reduction, protein-salt ionic interactions, emulsions, aftertaste, sensory hydration rate, DELIVERY
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

There is a broad need to reformulate lower sodium food products without affecting their original taste. The present study focuses on characterizing the role of protein salt interactions on the salt release in low-moisture systems and saltiness perception during hydration. Sodium release from freeze-dried protein powders and emulsion powders formulated at different protein/lipid ratios (5:0 to 1:4) were characterized using a chromatography column modified with a porcine tongue. Emulsion systems with protein structured at the interface were found to have faster initial sodium release rates and faster hydration and were perceived to have a higher initial salt intensity with a lower salty aftertaste. In summary, exposure of the hydrophilic segments of the interface-structured proteins in emulsions was suggested to facilitate hydration and release of sodium during dissolution of low-moisture powder samples.