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相关概念视频

Hydrolysis01:15

Hydrolysis

120.8K
Overview
Hydrolysis is a chemical reaction in which the addition of water breaks down a polymer into its simpler monomer units. For example, peptides break into amino acids, carbohydrates into simple sugars, and DNA into nucleotides. Enzymes often facilitate these processes.
Hydrolysis Reverses Dehydration Synthesis
Complex carbohydrates can be broken down by breaking the bonds between individual sugar units. The reaction breaks a glycosidic bond as water is added to the compound. The...
120.8K
Crossed Aldol Reaction Using Strong Bases: Directed Aldol Reaction00:56

Crossed Aldol Reaction Using Strong Bases: Directed Aldol Reaction

2.6K
The reaction between two different carbonyl compounds comprising α hydrogen in the presence of a strong base like lithium diisopropylamide (LDA) to form a crossed aldol product is known as a directed aldol reaction. The directed aldol reaction is depicted in Figure 1.
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相关实验视频

Updated: Jan 12, 2026

Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol
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Techniques for the Evolution of Robust Pentose-fermenting Yeast for Bioconversion of Lignocellulose to Ethanol

Published on: October 24, 2016

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优化的交联酶聚合物用于乳糖转化在乳清中的乳糖.

María Luciana Dellamea1, Joshua George Scott1, Julie Melissa Goddard1

  • 1Department of Food Science, Cornell University, Ithaca, New York, USA.

Journal of food science
|November 8, 2025
PubMed
概括

这项研究开发了可重复使用的酶聚合物 (CLEAs),将乳糖从乳制品副产品乳清透物转化为葡萄糖,银糖和果糖甜味剂混合物. 这提供了一种可持续的方法来提升乳制品废物的价值.

科学领域:

  • 生物催化剂是一种生物催化剂.
  • 酶工程是什么? 酶工程是什么?
  • 乳制品技术 乳制品技术

背景情况:

  • 乳清透,一个富含乳糖的乳制品副产品,未得到充分利用.
  • 乳糖转换的自由酶缺乏稳定性和可重复使用的工业用途.

研究的目的:

  • 开发和优化无载体交联酶聚合物 (CLEAs) 以实现高效的乳糖转化.
  • 评估CLEA在转化乳清透中的稳定性,可重复使用性和性能.

主要方法:

  • 形成和优化β-galactosidase和葡萄糖异构酶的CLEAs.
  • 描述CLEA的特性,包括密度和可回收性.
  • 在乳清透处理的批处理过程中应用CLEA.

主要成果:

  • 成功形成了β-galactosidase和葡萄糖异构酶CLEA,产量很好.
  • 在七个循环中,CLEAs 证明了可回收性,并保持了活动.
  • 在15分钟内完成乳糖水解,并实现了显著的葡萄糖-果糖同质化.

结论:

  • CLEAs是乳糖再循环的高效和可回收生物催化剂.

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Measuring Lactase Enzymatic Activity in the Teaching Lab
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Measuring Lactase Enzymatic Activity in the Teaching Lab

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  • 这种方法可以可持续地将乳制品副产品转化为有价值的甜味剂.
  • 优化的CLEA在工业应用中为自由酶提供了可重复使用的替代品.