微波间歇干燥对玉米核中的扎因结构和功能性质的影响
Sining Mao1, Yuhan Zhou1, Bin Song1
1College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China.
Foods (Basel, Switzerland)
|January 23, 2024
概括
微波间歇干燥会影响玉米的质量. 中等功率 (1800 W) 提高溶解性和乳化,而更高功率 (2700 W) 增加聚合并改善乳化稳定性.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 玉米中主要的蛋白质Zain具有独特的功能性质.
- 了解加工方法如何影响其结构对于其应用至关重要.
- 微波间歇干燥是加工玉米核的一个潜在方法.
研究的目的:
- 调查不同微波间歇干燥功率对玉米核中的的结构和功能性质的影响.
- 确定最佳的干燥条件,以增强特定的特性.
主要方法:
- 玉米核经过了微波间歇性干燥,其功率为900W,1800W,2700W和3600W.
- 分析了的结构性质 (分子结构,粒子大小,β-叶含量) 和功能性质 (可溶性,乳化活性指数,表面疏水性,乳化稳定性).
主要成果:
- 微波干燥通常会增加的热稳定性.
- 在1800W的干燥导致溶解度增加,乳化活性,由于分子展开和减少颗粒大小的表面水性.
- 在2700W的干燥导致更大的颗粒大小,增加β片结构,蛋白质聚合,减少溶解性和疏水性,但增强了乳化稳定性.
结论:
- 微波间歇干燥显著改变了的结构和功能性质.
- 可以利用特定的功率级别来为所需的应用量身定制其特性.
- 这项研究提供了利用微波技术优化玉米加工的见解.
相关概念视频
Standing Waves in a Cavity
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
Drying Shrinkage
When hardened concrete is exposed to air with a relative humidity of less than 100 percent, it begins to lose the free water within its capillaries. As this water evaporates, the water initially adsorbed onto the calcium silicate hydrates migrates towards these now empty spaces and eventually evaporates as well. Over time, as more water leaves, the volume of the concrete decreases, a phenomenon known as drying shrinkage.
A portion of this drying shrinkage can be reversed; if the concrete is...
A portion of this drying shrinkage can be reversed; if the concrete is...


