College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
Nutrients. 2019 Feb 11;11(2):371. doi: 10.3390/nu11020371.
Lotus seed starch (LS), dispersed (3%, /) in deionized water was homogenized (0⁻180 MPa) with high-pressure homogenization (HPH) for 15 min. The effects of HPH treatment on the physicochemical properties of the starch system were investigated. The properties were affected by HPH to various extents, depending on the pressure. These influences can be explained by the destruction of the crystalline and amorphous regions of pressurized LS. The short-range order of LS was reduced by HPH and starch structure C-type was transformed into B-type, exhibiting lower transition temperatures and enthalpy. The LS absorbed a great deal of water under HPH and rapidly swelled, resulting in increased swelling power, solubility and size distribution. It then showed "broken porcelain-like" morphology with reduced pasting properties. Digestion of pressurized LS complex investigated by a dynamic in vitro rat stomach⁻duodenum model showed higher digestion efficiency and the residues exhibited gradual damage in morphology.
莲子淀粉（LS）在去离子水中分散（3%，/），然后用高压均质机（HPH）均质（0⁻180 MPa）15 分钟。研究了 HPH 处理对淀粉体系理化性质的影响。这些性质受到 HPH 的不同程度的影响，具体取决于压力。这些影响可以通过对加压 LS 的结晶和无定形区域的破坏来解释。LS 的短程有序结构通过 HPH 降低，淀粉结构 C 型转变为 B 型，表现出较低的转变温度和焓值。LS 在 HPH 下吸收大量水分并迅速膨胀，导致膨胀能力、溶解度和粒径分布增加。然后，它呈现出“碎瓷样”形态，糊化性质降低。通过动态体外大鼠胃⁻十二指肠模型研究加压 LS 复合物的消化，显示出更高的消化效率，残留物的形态逐渐受损。
