相关实验视频

Updated: Jul 16, 2025

Analysis and Specification of Starch Granule Size Distributions

Analysis and Specification of Starch Granule Size Distributions

Published on: March 4, 2021

多孔玉米粉的结构和功能性质通过用AmyM处理原粉来获得

Lei Zhang¹, Lingli Zhong¹, Peiwen Wang¹

¹Key Laboratory of Agricultural Environmental Microbiology, Ministry of Agriculture and Rural Affairs, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, China.

Foods (Basel, Switzerland)

|September 9, 2023

概括

研究人员使用一种新型酶制造出具有不同性质的多孔粉. 这些改性粉提供增强的吸附和控制的葡萄糖释放,使它们适用于各种食品应用.

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:

多孔粉具有很大的表面积和在食品应用中有价值的屏蔽性能.
酶介导的修饰提供了一条定制粉功能的途径.

研究的目的:

使用特定的氨酶 (AmyM) 制备和表征具有不同水解度 (DH) 的多孔粉.
评估这些改性粉的结构和功能特性,以潜在的食品应用.

主要方法:

原生玉米粉被水解以达到15%,25%和45%的水解度 (DH-15,DH-25,DH-45) 使用原始粉消化氨酶AmyM.
结构分析包括评估表面形态,毛孔大小分布和结晶度.
评估的功能性质包括吸附能力,水解速率,耐性粉 (RS) 含量和葡萄糖释放.

主要成果:

制备的DH-15,DH-25和DH-45粉表现出多孔的表面形态和增强的吸附能力,由于改进的分子相互作用.
增加DH导致相对晶度降低,粉双螺旋链的脱聚合,以及亚微晶体结构的形成.
DH-45显示了降低的C∞值,增加了耐性粉含量,降低了葡萄糖释放,表明受控的水解.

结论:

艾米M介导的水解是一种有效的生产有可调节结构和功能性质的多孔粉的方法.
改性多孔粉显示出各种食品应用的潜力,需要控制释放和吸附.
这项研究强调了酶改造在创造功能性食品成分方面的多功能性.

关键词:

链条重组的重新安排.有孔的粉粉原粉消化氨基酶可以消化原粉.粉消化消化粉

更多相关视频

Rapid High Throughput Amylose Determination in Freeze Dried Potato Tuber Samples

Rapid High Throughput Amylose Determination in Freeze Dried Potato Tuber Samples

Published on: October 14, 2013

Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.

Inhibition of Aspergillus flavus Growth and Aflatoxin Production in Transgenic Maize Expressing the α-amylase Inhibitor from Lablab purpureus L.

Published on: February 15, 2019

相关概念视频

Porosity in Cement Paste

Porosity in Cement Paste

The porosity of concrete is a measure of the void spaces within its structure. These spaces impact its strength and durability significantly. When water and cement interact, a chemical reaction called hydration creates a semi-solid paste. This paste includes combined water, making up approximately 23% of the cement's dry mass, and gel water, which fills minuscule voids known as gel pores, accounting for about 28% of the cement gel volume.
The balance of water to cement in the mix is...

Chemistry of Carbohydrates

Chemistry of Carbohydrates

Carbohydrates are an essential part of the diet in humans and animals. Grains, fruits, and vegetables are natural sources of carbohydrates that provide energy to the body, particularly through glucose, a simple sugar that is a component of starch and an ingredient in many staple foods. The stoichiometric formula (CH2O)n, where n is the number of carbons in the molecule represents carbohydrates. In other words, the ratio of carbon to hydrogen to oxygen is 1:2:1 in carbohydrate molecules. This...