Enzymatic Hydrolysis of Milk Proteins Used for Emulsion Formation. 2. Effects of Calcium, pH, and Ethanol on the Stability of the Emulsions

1996 ◽  
Vol 44 (11) ◽  
pp. 3637-3642 ◽  
Author(s):  
Samson O. Agboola ◽  
Douglas G. Dalgleish
Keyword(s):  
Enzymatic Hydrolysis ◽  
Milk Proteins ◽  
The Stability ◽  
Hydrolysis Of

Effects of Rhamnolipids on Enzymatic Hydrolysis of Bamboo Biomass and Mechanism

2020 ◽  
Vol 14 (4) ◽  
pp. 453-460
Author(s):  
Ruyi Sha ◽  
Zhan Yu ◽  
Zhenzhen Wang ◽  
Edwin Menledy Gbor ◽  
Ligang Jiang ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Fluorescence Probe ◽  
Economic Losses ◽  
Dilute Acid ◽  
Site Of Action ◽  
The Stability ◽  
Surface Modified ◽  
Hydrolysis Of ◽  
Positive Effect

The lignin present in lignocellulose seriously affects the efficiency of cellulose enzymatic hydrolysis. In addition, lignin adsorbs high-cost cellulase, causing greater economic losses. Lignin can also disturb the site of action of cellulase and reduce the efficiency of hydrolysis. Therefore, if lignin is removed or surface modified before cellulose enzymatic hydrolysis, the enzymatic hydrolysis efficiency of lignocellulosic biomass will be greatly improved. In this paper, the cellulose enzymatic properties of bamboo biomass being treated with dilute acid and alkaline under the intervention of biosurfactant rhamnolipid were evaluated. The effects of rhamnolipids on the adsorption characterization of cellulose on pretreated bamboo were studied. Besides, the inter-communication between rhamnolipids and cellulose was investigated by fluorescence probe. The results showed that rhamnolipids could have a positive effect on the enzymatic hydrolysis of bamboo biomass by reducing the non-productive adsorption of cellulase on the surface of lignocellulose. The outcome illustrated that cellulase could be combined with rhamnolipids micelles, participating in the formation of rhamnolipids micelles, thereby increasing the internal hydrophobicity of the micelles, but could not change the properties of rhamnolipids micelles higher than one CMC (Critical Micelle Concentration). It can be seen that the interaction between rhamnolipids and cellulase is beneficial to enhance the stability and enzymatic activity of cellulase, thereby improving the enzymatic hydrolysis efficiency of cellulose in biomass. Based on these results, a theoretical knowledge about the mechanism of enhancing the enzymatic hydrolysis efficiency of lignocellulose by biosurfactants rhamnolipids is provided.

Study on the stability of intermediates in the process of enzymatic hydrolysis of phosphatidic acid by phospholipase A1

LWT ◽  
2021 ◽  
Vol 142 ◽  
pp. 111015
Author(s):  
Tong Wang ◽  
Jie Cheng ◽  
Ning Wang ◽  
Xingzhen Zhang ◽  
Lianzhou Jiang ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Phosphatidic Acid ◽  
Phospholipase A1 ◽  
The Stability ◽  
Hydrolysis Of

Enzymatic hydrolysis of camel milk proteins and its antioxidant properties

2016 ◽  
Vol 23 (1) ◽  
pp. 33 ◽  
Author(s):  
Devendra Kumar ◽  
Manish Kumar Chatli ◽  
Raghvendar Singh ◽  
Nitin Mehta ◽  
Pavan Kumar
Keyword(s):  
Enzymatic Hydrolysis ◽  
Antioxidant Properties ◽  
Milk Proteins ◽  
Camel Milk ◽  
Camel Milk Proteins ◽  
Hydrolysis Of
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