Effect of hydrocolloid coatings (Basil seed gum, xanthan, and methyl cellulose) on the mass transfer kinetics and quality of fried potato strips

Autor: Parisa Farzaneh, Atefeh Zamani-Ghalehshahi
Rok vydání: 2020
Předmět:
Zdroj: Journal of food scienceREFERENCES. 86(4)
ISSN: 1750-3841
Popis: In this research, the effect of different temperatures (160, 180, and 190 °C) and hydrocolloid coatings (Basil seed gum [BSG], xanthan gum [XG], methylcellulose [MC], BSG-XG, and BSG-MC mixtures) were investigated on the physicochemical properties (oil uptake, moisture loss, color, microscopic structure, activation energy, and texture), mass transfer kinetic of fried potato strips in deep-fat frying, and oil partitions using frying and postfrying cooling phase. An increase in frying time reduced the moisture content and hardness of potato strips; however, the oil content and color difference increased. The oil content in the coated samples had lower rates than that in the noncoated ones. The treated samples using BSG-xanthan mixture (50:50) and BSG had the lowest oil uptake at 0.13% and 0.14% Dry basis (d.b.), respectively. The maximum and minimum values of effective moisture diffusivity were measured in control and samples coated with BSG-XG and BSG, respectively. As frying temperature increased, the specific rate of oil uptake increased and the equilibrium oil content decreased. Overall, BSG-XG mixture-coated potato strips can be used as a promising product due to absorbing the lowest oil rate and being similar to the control in terms of organoleptic properties.
Databáze: OpenAIRE