TY - JOUR

T1 - Ultrasound-assisted annealing treatment to improve physicochemical and digestive properties of banana flour

AU - Keeratiburana, Thewika

AU - Siangwengwang, Nattika

AU - Somphunga, Wipha

AU - Fu, Tian

AU - Blennow, Andreas

N1 - Publisher Copyright: © 2024 Society of Chemical Industry.

PY - 2024

Y1 - 2024

N2 - BACKGROUND: Banana flour can provide a solution to people with gluten intolerance, as it is gluten-free. Native banana flour may have limited functionality in certain applications. In this study, banana flour was modified by ultrasonic (US) and annealing (ANN) treatments at four incubation time spans, namely 12, 24, 36 and 72 h, separately or combined sequentially (US–ANN) to enhance the physicochemical and digestive properties. RESULTS: US led to exposed granular surfaces and damaged non-starch components. Both treatments, at extended incubation time, increased crystallinity, resulting in a narrower starch gelatinization temperature range. The swelling power was significantly lower for ANN and US–ANN compared to US alone, providing a delay of gelatinization temperature. However, none of the treatments affected the gelatinization enthalpy. Furthermore, US increased peak viscosity, breakdown, final viscosity and setback whereas the opposite results were obtained for ANN and US–ANN. Additionally, US prior to ANN significantly increased the resistant starch (RS) content for annealing times over 24 h, especially for the US–ANN treatment for 72 h, which provided the highest RS content (49.3%) compared to ANN treatment for 72 h (44.0%) and native flour (36.3%). CONCLUSIONS: US prior to ANN treatment offers an alternative method to improve the functional and digestive properties of banana flour, extending the range of applications.

AB - BACKGROUND: Banana flour can provide a solution to people with gluten intolerance, as it is gluten-free. Native banana flour may have limited functionality in certain applications. In this study, banana flour was modified by ultrasonic (US) and annealing (ANN) treatments at four incubation time spans, namely 12, 24, 36 and 72 h, separately or combined sequentially (US–ANN) to enhance the physicochemical and digestive properties. RESULTS: US led to exposed granular surfaces and damaged non-starch components. Both treatments, at extended incubation time, increased crystallinity, resulting in a narrower starch gelatinization temperature range. The swelling power was significantly lower for ANN and US–ANN compared to US alone, providing a delay of gelatinization temperature. However, none of the treatments affected the gelatinization enthalpy. Furthermore, US increased peak viscosity, breakdown, final viscosity and setback whereas the opposite results were obtained for ANN and US–ANN. Additionally, US prior to ANN significantly increased the resistant starch (RS) content for annealing times over 24 h, especially for the US–ANN treatment for 72 h, which provided the highest RS content (49.3%) compared to ANN treatment for 72 h (44.0%) and native flour (36.3%). CONCLUSIONS: US prior to ANN treatment offers an alternative method to improve the functional and digestive properties of banana flour, extending the range of applications.

KW - annealing treatment

KW - banana flour

KW - starch digestibility

KW - starch modification

KW - ultrasound

U2 - 10.1002/jsfa.13488

DO - 10.1002/jsfa.13488

M3 - Journal article

C2 - 38523359

AN - SCOPUS:85189806698

JO - Journal of the Science of Food and Agriculture

JF - Journal of the Science of Food and Agriculture

SN - 0022-5142

ER -