Zhang Yijia, Wu Liangru, Zhang Fusheng, Zheng Jiong
College of Food Science, Southwest University, Chongqing 400715, China; Westa College, Southwest University, Chongqing 400715, China.
China National Bamboo Research Center, Hangzhou 310012, China.
Food Chem. 2023 Jul 1;413:135609. doi: 10.1016/j.foodchem.2023.135609. Epub 2023 Feb 1.
High-pressure homogenization (HPH) is a physical modification method that can rapidly reduce the particle size of bamboo shoot dietary fiber (BSDF), but it can lead to agglomeration. Therefore, the effects of the addition of sucrose ester (SE) to alleviate the agglomeration of BSDF during HPH were investigated. Compared with BSDF without added SE, BSDF obtained the smallest particle size (276.5 nm) and highest ζ-Potential (53.6 mV) when SE was 5 g/L. Water-holding capacity, oil-holding capacity, swelling capacity, and b* increased, whereas L* and a* decreased significantly with the addition of SE. The shear stress and viscoelasticity of BSDF solution were minimized when 5 g/L SE was added. SE reduced relative crystallinity and thermal stability of BSDF. SE could effectively alleviate the aggregation of BSDF through the mechanism of electrostatic repulsion. This study highlights an innovative and promising strategy for alleviating the agglomeration behavior of BSDF during HPH treatment.
高压均质化(HPH)是一种物理改性方法,它可以快速减小竹笋膳食纤维(BSDF)的粒径,但会导致团聚。因此,研究了添加蔗糖酯(SE)对减轻HPH过程中BSDF团聚的影响。与未添加SE的BSDF相比,当SE为5 g/L时,BSDF获得了最小的粒径(276.5 nm)和最高的ζ电位(53.6 mV)。随着SE的添加,持水能力、持油能力、溶胀能力和b增加,而L和a*显著降低。当添加5 g/L SE时,BSDF溶液的剪切应力和粘弹性最小。SE降低了BSDF的相对结晶度和热稳定性。SE可以通过静电排斥机制有效减轻BSDF的聚集。本研究突出了一种创新且有前景的策略,用于减轻HPH处理过程中BSDF的团聚行为。