Chemistry Department, De La Salle University, 2401 Taft Avenue, Manila 0922, Philippines; International Rice Research Institute, Los Baños, Laguna 4031, Philippines.
Synchrotron Light Research Institute, Mueang District, Nakhon Ratchasima 30000, Thailand.
Ultrason Sonochem. 2020 Nov;68:105234. doi: 10.1016/j.ultsonch.2020.105234. Epub 2020 Jun 19.
This work investigates the effect of sonication on brown and milled rice grains of both waxy and non-waxy varieties. We report herein the microstructural analysis of uncooked rice kernels under sonication and its effect on the textural properties. X-ray computed tomography results showed the formation of microporous surfaces and the creation of cracks and fissures. Sonication increased the % porosity of the rice samples allowing for easy penetration of water during the cooking process and promotes softer texture. Moreover, the effect of sonication in brown rice resulted to the decrease in endogenous iron and phosphorus contents but increased its capacity for iron uptake through fortification when sonicated rice is soaked in the mineral solution.
这项工作研究了超声处理对糯稻和非糯稻糙米的影响。本文报告了未经蒸煮的稻谷在超声处理下的微观结构分析及其对质地特性的影响。X 射线计算机断层扫描结果表明，形成了微孔表面，并产生了裂缝和裂纹。超声处理增加了大米样品的孔隙率，使其在烹饪过程中更容易渗透水分，并促进了更柔软的质地。此外，超声处理对糙米的影响导致内源性铁和磷含量降低，但当超声处理的大米浸泡在矿物质溶液中时，其铁吸收能力增加，从而实现了强化。
