Solution behaviour and sweetness response of D-Mannitol at different temperatures.
The solution properties of d-Mannitol (DM) were studied to explore sweetness response and molecular interactions in aqueous solutions at different temperatures. The density (ρ) and ultrasonic velocity (μ) were measured at 20-45°C using density sound velocity metre (DSA 5000M). The results obtained were used to compute apparent and partial molar volume, apparent specific volumes, partial molar expansibility, apparent molar isentropic compressibility and compressibility hydration number. The partial molar volume (ΦV°) indicates hydrophilic interactions dominating in aqueous solution of DM. The quality of taste has been determined from apparent specific volumes (ASV) data at 20-45°C and 0.04-0.89 mol kg(-1).The apparent molar isentropic compressibility (ΦK(s)) and hydration number (nH) conferred pre-dominance of solute-solvent interactions, whereas partial molar expansibility (ΦE°) and related standards predicted structure making behaviour of DM. This study may provide new insights in elucidation of mechanistic differences between sweeteners and their mode of interactions.
Departmentof Chemistry, Government College University, Faisalabad 38000, Pakistan. Electronic address: m.asgharjamal@gmail.com.
Muhammad Asghar
MA
Jamal
Departmentof Chemistry, Government College University, Faisalabad 38000, Pakistan. Electronic address: muhammadrashad76@gmail.com.
Muhammad
M
Rashad
Departmentof Chemistry, Government College University, Faisalabad 38000, Pakistan.
Muhammad Kaleem
MK
Khosa
Department of Chemistry, University of Agriculture, Faisalabad 38040, Pakistan.
Ijaz A
IA
Bhatti
Departmentof Applied Chemistry, Government College University, Faisalabad 38000 Pakistan.
Khalid Mahmood
KM
Zia
D008353:Mannitol / Q000737:chemistry*; D013549:Sweetening Agents / Q000737:chemistry*; D013696:Temperature; D014867:Water / Q000737:chemistry
D013549:Sweetening Agents; D014867:Water; D008353:Mannitol
Apparent molar isentropic compressibility; Apparent specific volume; Compressibility hydration number; Partial molar expansibility; d-Mannitol