Naslov
Modification of barley starch with mixtures of organic dicarboxylic acids and acetanhydride

Autori
Ačkar, Đurđica ; Šubarić, Drago ; Babić, Jurislav ; Šoštarec, Ana ; Miličević, Dijana

Izvornik
Technologica acta (1840-0426) 4 (2011), 2; 27-33

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
barley starch ; adipic acid ; azelaic acid ; modification

Sažetak
The aim of this research was isolation of starch from barley cultivar Barun, its modification with mixtures: adipic acid/acetanhydride and azelaic acid/acetanhydride (5%) and characterization of properties of native and modified starches, important for starch application in food industry. Thermophysical and pasting characteristics, swelling power, solubility and resistant starch content of native and modified starches were determined. The results showed that modified starches had lower gelatinization enthalpy, higher peak temperature and lower tendency to retrograde than the native starch. Modified starch pastes had lower gelatinization temperature, higher peak viscosity, higher hot and cold paste viscosities, lower breakdown and higher setback values. Swelling power and solubility of modified starches were higher (except SOL (%) of BSAD and BSAZ at 65°C) than the native starch in temperature range 65-85°C, but lower at 95°C. Modifications decreased resistant starch content of starch.

Izvorni jezik
Engleski

Znanstvena područja
Biotehnologija, Prehrambena tehnologija

POVEZANOST RADA