Inulinases from various producers: The features of their permolecular organization

Holyavka, M. G.; Kovaleva, T. A.; Grechkina, M. V.; Ostankova, I. V.; Artyukhov, V. G.

doi:10.1134/s0003683814010050

Cited by 13 publications

(4 citation statements)

References 17 publications

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“…Если не учитывать внешних связей процесса сублимационной сушки препарата с процессами его получения и предварительного замораживания, а в качестве целевой функции принять показатель прибыли как частный случай приведенного дохода [2], то при отсутствии капитальных затрат критерий оптимальности будет иметь следующий вид:…”

Section: результаты и обсуждениеunclassified

“…Однако в научно-технической литературе отсутствуют научно обоснованные подходы к использованию фермента инулиназы Bacillus polymyxa 29 для получения биомодифицировнных продуктов с заданными технологическими свойствами и их использование в технологии хлебобулочных и мучных кондитерских изделий повышенного качества и пищевой ценности [2].…”

Section: Introductionunclassified

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Economic and mathematical approach to optimization of vacuum-freeze drying of the enzyme preparation inulinase Bacillus polymyxa 29

Полянский

2020

Vestn. Voronež. gos. univ. inž. tehnol.

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One of the promising directions of improving the processes of processing plant raw materials is bioconversion using enzyme preparations, the use of which allows you to significantly change, intensify and improve existing technologies for the production of food products as a system of energy-efficient processes. The subject of the study is the enzyme preparation of inulinase Bacillus polymyxa 29, which ensures the conversion of the plant polymer inulin to fructose. Fructose has an increased interest in food technologies as a safer human health alternative to sucrose. Fructose yield reaches 90–95%; the sweetness coefficient of fructose is 1.73 times higher than sucrose. Production of enzyme with maximum activity is achieved by vacuum-sublimation drying at time-programmed mode of heat supply control taking into account limitations due to quality of heat exchange and economic feasibility of the process. Method of selection of optimal solutions in vacuum-sublimation drying of feather preparation Bacillus polymyxa 29 according to profit index is proposed. The proposed approach resolved the main technical gap between productivity and energy consumption. An optimal loading of the sublimator has been established, which ensures the minimization of specific electric power consumption for various values of the initial moisture drying of the enzyme, taking into account the given efficiency of the vacuum sublimation dryer.

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Section: результаты и обсуждениеunclassified

Section: Introductionunclassified

Economic and mathematical approach to optimization of vacuum-freeze drying of the enzyme preparation inulinase Bacillus polymyxa 29

Полянский

2020

Vestn. Voronež. gos. univ. inž. tehnol.

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“…enzymes, have a significant impact on the biotechnological industry. However, there are some restrictions on commercial enzyme uses, such as low stability and half-life time in the aqueous solutions [ 26 – 28 ]. The enzyme formulations immobilized onto different polymers can enhance industry applications of the ones.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, when creating new enzyme immobilized formulations, it is necessary to know enzyme interactions with the polymer matrix and reveal the driving forces and mechanism of the process to predict the properties of the obtaining formulations. However, a significant part of the industrially used enzymes are expensive, so to understand the interaction mechanism of the ones with polymers it is more reasonable to investigate the interaction of model unlinked amino acids with the polymer matrix [ 26 – 28 ].…”

Section: Introductionmentioning

confidence: 99%

Interaction of the nitrogen-containing carbon backbone polymers with essential α-amino acids

SOROKIN¹,

LAVLINSKAYA²

2022

Turkish Journal of Chemistry

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The aim of this work is to research the interactions of water-soluble nitrogen-containing copolymers with essential amino acids in aqueous media. For this, poly( N -vinylformamide- co - N -vinylimidazole) and poly( N -vinylcaprolactam- co - N -vinylimidazole) random copolymers were synthesized by free radical polymerization. The products obtained are characterized by GPC, DLS, and FTIR. The copolymers have a narrow molecular weight distribution and low dispersity. The interactions of the obtained copolymers with histidine, proline, arginine, leucine, phenylalanine, and methionine were researched by UV spectroscopy, FTIR, and TEM. It was found that conjugation of the copolymers with amino acids correlates with the copolymer composition and hydrodynamic radius R h , and depends on the pH of the medium and amino acid structures. It is shown that chloride anion presence in the polymer-amino acid-water systems affects the mechanism of their interactions. The research shows that the synthesized copolymers can be used for the creation of effective eco-friendly amino acid extraction systems or matrices for enzyme immobilization.

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Efficient fructose production from plant extracts by immobilized inulinases from Kluyveromyces marxianus and Helianthus tuberosus

Holyavka

Kayumov

Baydamshina

et al. 2018

International Journal of Biological Macromolecules

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Inulinases from various producers: The features of their permolecular organization

Cited by 13 publications

References 17 publications

Economic and mathematical approach to optimization of vacuum-freeze drying of the enzyme preparation inulinase Bacillus polymyxa 29

Economic and mathematical approach to optimization of vacuum-freeze drying of the enzyme preparation inulinase Bacillus polymyxa 29

Interaction of the nitrogen-containing carbon backbone polymers with essential α-amino acids

Efficient fructose production from plant extracts by immobilized inulinases from Kluyveromyces marxianus and Helianthus tuberosus

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