scholarly journals NEW ASPECTS OF THE ENZYMATIC BREAKDOWN OF CHITIN: A REVIEW

2021 ◽  
Vol 26 ◽  
pp. 5-10
Author(s):  
Urszula Jankiewicz ◽  
◽  
Arletta Kochańska-Jeziorska ◽  
Agnieszka Gałązka
Keyword(s):  
Crystalline Structure ◽  
Enzymatic Degradation ◽  
Soluble Sugars ◽  
Practical Importance ◽  
Oxidative Cleavage ◽  
Lytic Polysaccharide Monooxygenase ◽  
Great Practical Importance ◽  
Polysaccharide Monooxygenase

This review focuses on the enzymatic breakdown of chitin, taking into account the latest scientific reports on the activity of lytic polysaccharide monooxygenase (LPMO). Chitin is a natural, abundant polysaccharide of great practical importance in the environment. However, the insolubility in water and the tightly packed crystalline structure of chitin pose a serious obstacle to enzymatic degradation. This substrate can be converted into soluble sugars by the action of glycosidic hydrolases (GH), also known as chitinases. LPMO could prove to be helpful in enzymatic processes that increase the rate of chitin depolymerisation by improving the availability of substrates for chitinases. The unique action of LPMO is based on the ability to catalyse the oxidative cleavage of glycosidic chains present in complex, resistant crystal networks of chitin, and this cleavage facilitates the subsequent action of glycolytic hydrolases.

scholarly journals Correction to “Oxidative Cleavage of Cellobiose by Lytic Polysaccharide Monooxygenase (LPMO)-Inspired Copper Complexes”

ACS Omega ◽  
2020 ◽  
Vol 5 (43) ◽  
pp. 28403-28403
Author(s):  
Andrea. C. Neira ◽  
Paulina R. Martínez-Alanis ◽  
Gabriel Aullón ◽  
Marcos Flores-Alamo ◽  
Paulino Zerón ◽  
...  
Keyword(s):  
Copper Complexes ◽  
Oxidative Cleavage ◽  
Lytic Polysaccharide Monooxygenase ◽  
Polysaccharide Monooxygenase

scholarly journals Oxidative Cleavage of Cellobiose by Lytic Polysaccharide Monooxygenase (LPMO)-Inspired Copper Complexes

ACS Omega ◽  
2019 ◽  
Vol 4 (6) ◽  
pp. 10729-10740 ◽  
Author(s):  
Andrea. C. Neira ◽  
Paulina R. Martínez-Alanis ◽  
Gabriel Aullón ◽  
Marcos Flores-Alamo ◽  
Paulino Zerón ◽  
...  
Keyword(s):  
Copper Complexes ◽  
Oxidative Cleavage ◽  
Lytic Polysaccharide Monooxygenase ◽  
Polysaccharide Monooxygenase

Oxidative cleavage of some cellulosic substrates by auxiliary activity (AA) family 9 enzymes influences the adsorption/desorption of hydrolytic cellulase enzymes

2016 ◽  
Vol 18 (23) ◽  
pp. 6329-6336 ◽  
Author(s):  
Jinguang Hu ◽  
Amadeus Pribowo ◽  
Jack N. Saddler
Keyword(s):  
Oxidative Cleavage ◽  
Lytic Polysaccharide Monooxygenase ◽  
Cellulase Enzymes ◽  
Adsorption Desorption ◽  
Hydrolysis Of ◽  
Polysaccharide Monooxygenase

The addition of Lytic polysaccharide monooxygenase (LPMO's) increases the desorption of exoglucanases during the hydrolysis of cellulosic substrates.

Speech influence in advertising texts

2020 ◽  
Vol 45 (4) ◽  
pp. 106-114
Author(s):  
Y. Kim ◽  
◽  
А. Yermekbayeva ◽  
Keyword(s):  
Practical Importance ◽  
Russian Language ◽  
Main Body ◽  
Structural Elements ◽  
School Teachers ◽  
High Quality ◽  
Great Practical Importance ◽  
Advertising Message ◽  
Potential Consumer ◽  
The Russian Language

This work is devoted to the speech impact of advertising texts, in other words, the language of advertising, the purpose of which is to attract the attention of a potential consumer by making the message as memorable and unusual as possible, lively and catchy, colorful and attractive to a potential listener / buyer. The significance of the work lies in the fact that the author, in the process of analyzing the basic structural elements of the advertising message (slogan and main body), determines the main speech techniques for the influence of advertising texts: expressive means, including metaphors, epithets metonymy, speech turns, paths, various grammatical forms and other forms of influence: nominative, one-part, verb sentences, comparative and superlative adjectives, rhymes, imperative verbs, adverbs, lexical repetition. On specific examples of advertising slogans, evidence is given that the above speech means contribute to increased demand for the advertised product or service. During the study, the author confirms the hypothesis put forward at the beginning of the study: if you skillfully use speech exposure, i.e. to choose words whose harmonious combination lays in the subconscious of a person the information transmitted to him by the manufacturer through high-quality advertising, then such an advertising text can become the key to the success of trade. The work is of great practical importance: the material presented in it can be used by students to improve the culture of speech, improve stylistically differentiated speech, as well as school teachers as methodological material in the Russian language when studying the section «Vocabulary», «Stylistics».

Blood calcium for eczema

1935 ◽  
Vol 31 (6) ◽  
pp. 726-734
Author(s):  
N. N. Yasnitsky ◽  
Ts. D. Elina
Keyword(s):  
Practical Importance ◽  
Experimental Studies ◽  
Controversial Issue ◽  
Scientific Interest ◽  
Blood Calcium ◽  
Great Practical Importance

One of the urgent problems of modern dermatology, which are of deep scientific interest and are of extremely great practical importance, is the complex and controversial issue of the etiology of eczema. However, despite the colossal literature, despite a number of detailed experimental studies, the main and deep contradictions of representatives of the main dermatological schools on the nature of eczema remain unresolved.

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