Formation of low molecular weight oligomers from chitin and chitosan stimulated by plasma-assisted processes

Vasilieva, Tatiana; Sigarev, A. A.; Kosyakov, D. S.; Ul’yanovskii, N. V.; Anikeenko, E. A.; Chuhchin, D. G.; Ladesov, A. V.; Hein, Aung Myat; Мясников, В. П.

doi:10.1016/j.carbpol.2017.01.026

Cited by 46 publications

(29 citation statements)

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“…The plasma generating gas was spectroscopic grade oxygen (Scientific Industrial Center of National Research Center "Kurchatov Institute", Moscow, Russia). Other processing conditions are given in Table 1 and the entire chitosan treatment procedure was described in more detail in [37].…”

Section: The Electron-beam Plasma Chemical Reactor For Chitosan Procementioning

confidence: 99%

“…IR spectral measurements in a wavenumber range 500-5000 cm −1 with a resolution of 4 cm −1 were carried out by a FT-IR spectrometer Perkin-Elmer Spectrum 100 (Perkin-Elmer, Waltham, MA, USA) as described in [37,42].…”

Section: Transform Infrared Spectroscopy (Ft-ir)mentioning

confidence: 99%

“…In our previous papers, the EBP excited by electron beams (EB) was suggested for the effective and controllable chitosan depolymerization to produce water-soluble COS with high yields of target products [37,38]. It is very important that chitosan plasma chemical processing in beam-plasma reactors is the dry process; that is, the main advantage of the reactors of the type.…”

Section: Introductionmentioning

confidence: 99%

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Chitosan Plasma Chemical Processing in Beam-Plasma Reactors as a Way of Environmentally Friendly Phytostimulants Production

et al. 2021

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A novel technique of phytoactive water-soluble chitooligosaccharide (COS) production in low-temperature plasma is described. Design, operation, and control of plasma chemical reactors used to produce COS from the powder of high molecular weight chitosan are presented. The electron beam plasma is strongly non-equilibrium and chemically active; plasma was excited by injecting the scanning electron beam into reaction volume filled with aerosol, containing oxygen and chitosan powder. Plasma chemical processes, responsible for the raw chitosan destruction and techniques of these processes to obtain control of products of optimal molecular weight, are considered. COS, in amounts sufficient for laboratory tests with some plants, were produced. Tests showed that the addition of COS into the liquid growing medium at 0.25 and 1 mg/mL stimulates root growth in Arabidopsis thaliana seedlings (Col-0) by up to 40%, with respect to control plants. Foliar application of these COS formulations at 0.25 mg/mL on tomato plants (cv. Micro-Tom) also resulted in increases between 11.9% and 36% in two important plant productivity indicators (flower and fruit numbers) compared to the control plants. Being environmentally friendly (and resource saving) the electron beam plasma technology of renewable natural biopolymer processing can be considered as a competitive way to produce biostimulants for commercial agriculture.

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Section: The Electron-beam Plasma Chemical Reactor For Chitosan Procementioning

confidence: 99%

Section: Transform Infrared Spectroscopy (Ft-ir)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Chitosan Plasma Chemical Processing in Beam-Plasma Reactors as a Way of Environmentally Friendly Phytostimulants Production

et al. 2021

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“…При этом температура частиц порошка во время обработки остаётся на уровне комнатной, что исключает термическую деструкцию полисахаридов. Разработанный метод позволяет получить низкомолекулярные водорастворимые хитоолигосахариды (ММ 800-2000 Да) с выходом 95% в течение 2 мин, тогда как химический гидролиз обычно занимает несколько часов [Vasilieva et al, 2017;Научная Россия].…”

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“…I., Golovkova G. N., Shust K.V, Shevtsov V. V., Ramirez A. 2013 Vasilieva T., Sigarev A., Kosyakov D., Ul'yanovskii N., Anikeenko E., Chuhchin D., Ladesov A., Aung Myat Hein, Miasnikovc V. 2017. Formation of low molecular weight oligomers from chitin and chitosan stimulated by plasma-assisted processes // Carbohydrate Polymers.…”

mentioning

confidence: 99%

Современные Способы Переработки Хитинсодержащего Сырья

Strokova¹

2018

Tr VNIRO

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Основным источником хитинсодержащего сырья (ХСС) являются отходы от переработки различных видов ракообразных-крабов, креветок, криля и др. В данной работе описаны способы получения хитина, а также его производного хитозана. Хитин-нерастворимый полимер и его не удаётся выделить из ХСС напрямую. Поэтому для его получения последовательно удаляют белковую и минеральную составляющие ХСС. Классическим способом обработки ХСС является химический, в процессе которого применяют крепкие растворы щёлочи (NaOH) и разбавленную соляную кислоту (HCl). В биотехнологическом процессе применяют ферменты различного происхождения для депротеинирования ХСС с целью смягчения условий получения хитина и улучшения его качества. Известны также электрохимический и электрофизический способы получения хитина. Анализ опубликованных данных показал, что хитин, в основном, рассматривается как сырьё для производства хитозана, широко используемого в различных отраслях таких как: пищевая, косметическая, медицинская и биотехнология. Показана эффективность производства больших объёмов хитина/ хитозана, позволяющих получать высокую прибыль за счёт снижения прямой производственной себестоимости и издержек производства. Установлено, что Европейский рынок в большей степени нацелен на производство высокорентабельных биополимеров хитина/хитозана с использованием инновационных сложно воспроизводимых технологий и маркетинговых продвижений. Ключевые слова: хитин, хитозан, хитинсодержащее сырье, панцирьсодержащие отходы ракообразных, способы получения хитина/хитозана. введение Рыбохозяйственная отрасль России обладает огромной хитинсодержащей сырьевой базой-крабы и креветки различных видов, криль, гаммарус, пресноводные раки и др. [Глубоковский и др., 2012]. По данным FAO 1 объёмы добычи ракообразных в Россий-Современные способы переработки хитинсодержащего сырья

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Atmospheric Plasma‐Assisted Deposition and Patterning of Natural Polymers

Arkhangelskiy

Quaranta

Motta

et al. 2022

Adv Materials Inter

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Plasma‐assisted deposition is a facile, yet sophisticated method to form biocompatible coatings on materials and introduce specific surface interactions. The plasma process provides unique features such as surface activation, functionalization, and assisted polymerization, all of which can be obtained under low power and room temperature conditions. Plasma‐assisted deposition can further provide coatings with enhanced adhesion and stability. Here, it is reported for the first time, a method for the controlled plasma deposition of the versatile biomaterial chitosan on a range of substrates – soda‐lime glass, metal alloy (Ti4Al6V), thermoplastic polymer (polyethylene terephthalate), and silicone rubber (poly(dimethylsiloxane)). The deposited chitosan films are characterized by atomic force microscopy, scanning electron microscopy and Fourier transform infrared spectroscopy, and evaluated for adhesion and stability. The proposed method is also successfully optimized for the deposition of multiple layers of different biomaterials. Specifically, coatings comprising alternate chitosan and silk fibroin layers are realized, together with patterned surfaces with programmable surface composition. The biological response of the chitosan‐on‐fibroin and fibroin‐on‐chitosan surfaces with and without patterning are investigated using cell culture experiments. Selective area deposition enables the development of improved surface finishes for biomedical devices.

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Formation of low molecular weight oligomers from chitin and chitosan stimulated by plasma-assisted processes

Cited by 46 publications

References 48 publications

Chitosan Plasma Chemical Processing in Beam-Plasma Reactors as a Way of Environmentally Friendly Phytostimulants Production

Chitosan Plasma Chemical Processing in Beam-Plasma Reactors as a Way of Environmentally Friendly Phytostimulants Production

Современные Способы Переработки Хитинсодержащего Сырья

Atmospheric Plasma‐Assisted Deposition and Patterning of Natural Polymers

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