The utilization of forest auxiliary products and their conversion into products with higher added value is important for the use of renewable resources. For this purpose, acorns belonging to the Q. coccifera species were collected in November, which is their ripening period, and dried and ground in the laboratory. Then, acorn starch (AS) was isolated from the sieved acorn flour. For 5 g of this isolated AS, hydroxypropyl acorn starch (HPAS) with the highest molar substitution (MS = 0.319) was synthesized by optimizing at 45 °C for 5 h with 30 g of propylene oxide and 1.88 g of NaOH. The structures of HPASs synthesized were characterized by FT-IR, XRD and ¹H (¹³C)-NMR spectroscopy, and their MS values were determined. In addition, surface morphologies with SEM images and thermal stability with DTA-TG thermograms were examined. Since hydroxypropyl acorn starch has not been synthesized from acorn starch before, this study contributed to the literature and science. It has been understood that HPASs can also be used in many areas where hydroxypropyl starch is used.

森林辅助产品的利用及其转化为高附加值产品对于利用可再生资源非常重要。为此目的，在十一月（即成熟期）收集了属于球孢Q.种的橡子，并在实验室中干燥和磨碎。然后，从筛分的橡子粉中分离出橡子淀粉（AS）。对于5 g的这种分离的AS，通过在30°C下使用30 g环氧丙烷和1.88 g NaOH在45°C下优化5 h，合成具有最高摩尔取代度（MS = 0.319）的羟丙基橡子淀粉（HPAS）。FT-IR，XRD和¹ H对合成的HPAS的结构进行了表征（¹³C）-NMR光谱，并测定其MS值。此外，还检查了具有SEM图像的表面形貌和DTA-TG热分析图的热稳定性。由于羟丙基橡子淀粉以前从未从橡子淀粉合成，因此这项研究为文献和科学做出了贡献。已经理解的是，HPAS也可以在使用羟丙基淀粉的许多领域中使用。