Pycia Karolina, Szpunar-Krok Ewa, Szostek Małgorzata, Pawlak Renata, Juszczak Lesław
Department of Food Technology and Human Nutrition, Institute of Food Technology, College of Natural Science, University of Rzeszow, Zelwerowicza 4 St., 35-601 Rzeszow, Poland.
Department of Plant Production, Institute of Agricultural Sciences, and Environmental Protection, College of Natural Science, University of Rzeszow, Zelwerowicza 4 St., 35-601 Rzeszow, Poland.
Foods. 2023 Dec 21;13(1):49. doi: 10.3390/foods13010049.
The following study analyzed the impact of fertilizing barley with fly ash from biomass combustion grown on two types of soil, Haplic Luvisol (HL) and Gleyic Chernozem (GC), on the properties of starch. The experiment was conducted in 2019 (A) and 2020 (B), and barley was fertilized with ash doses (D1-D6) differing in mineral content. In the tested barley starch samples, the amylose content, the clarity of the paste, and the content of selected minerals were determined. The thermodynamic characteristics of gelatinization and retrogradation were determined using the DSC method. Pasting characteristics, flow curves, and viscoelastic properties of starch pastes were performed. Starches differed in amylose content and paste clarity. The highest gelatinization and retrogradation enthalpy (ΔH and ΔH) values were recorded for samples GCD1A and HLD5B. None of the tested factors significantly affected the pasting temperature (PT), but they had a significant impact on the remaining parameters of the pasting characteristics. The average PT value of barley starches was 90.9 °C. However, GCD2A starch had the highest maximum viscosity and the highest rheological stability during heating. GCD2A paste was characterized by the highest apparent viscosity. It was shown that all pastes showed non-Newtonian flow and shear-thinning and had a predominance of elastic features over viscous ones. The resulting gels had the characteristics of weak gels. Ash from burning wood biomass is an innovative alternative to mineral fertilizers. It was shown that the use of such soil fertilization influenced the properties of barley starch.
以下研究分析了在两种土壤（简育淋溶土（HL）和潜育黑钙土（GC））上种植的生物质燃烧产生的粉煤灰对大麦施肥后对淀粉特性的影响。实验于2019年（A）和2020年（B）进行，用矿物质含量不同的灰分剂量（D1 - D6）对大麦施肥。在测试的大麦淀粉样品中，测定了直链淀粉含量、糊的透明度和选定矿物质的含量。使用差示扫描量热法（DSC）测定了糊化和老化的热力学特性。测定了淀粉糊的糊化特性、流动曲线和粘弹性。淀粉在直链淀粉含量和糊透明度方面存在差异。样品GCD1A和HLD5B的糊化和老化焓（ΔH和ΔH）值最高。没有一个测试因素对糊化温度（PT）有显著影响，但它们对糊化特性的其余参数有显著影响。大麦淀粉的平均PT值为90.9℃。然而，GCD2A淀粉在加热过程中具有最高的最大粘度和最高的流变稳定性。GCD2A糊具有最高的表观粘度。结果表明，所有糊都表现出非牛顿流动和剪切变稀，并且弹性特征占主导地位。所得凝胶具有弱凝胶的特性。燃烧木材生物质产生的灰分是矿物肥料的一种创新替代品。结果表明，这种土壤施肥方式会影响大麦淀粉的特性。
