На нашем сайте используются cookie-файлы. Продолжая пользоваться данным сайтом, вы подтверждаете свое согласие на использование файлов cookie в соответствии с настоящим уведомлением и Пользовательским соглашением.
Отправить рукопись
От химии к технологии шаг за шагом
Журналы / От химии к технологии шаг за шагом / Том 2 Номер 3 / Assessment of changes in the chemical composition of oat husk during pretreatment by autohydrolysis
УДК
66.03

ASSESSMENT OF CHANGES IN THE CHEMICAL COMPOSITION OF OAT HUSK DURING PRETREATMENT BY AUTOHYDROLYSIS Assessment of changes in the chemical composition of oat husk during pretreatment by autohydrolysis

Опубликовано в От химии к технологии шаг за шагом · Страницы 91–100 · Рубрика: Научные статьи
DOI: https://doi.org/10.52957/27821900_2021_03_91
Получено: 07.09.2021 Одобрено: 14.09.2021 Опубликовано: 23.09.2021 Язык публикаций: ENG
Авторы
ПА
Павлов Игорь Николаевич
ORCID
АННОТАЦИЯ
We carry out the preliminary processing of oat husk biomass by autohydrolysis. There was a change in the process temperature in the range of 160-220 °C, the processing time in the range of 5-60 minutes and the treatment hydromodule 1:10. To characterize the pre-treatment conditions, we use the autohydrolysis severity factor, which varied from 2.50 to 5.37. We assessed the effectiveness of the autohydrolysis performed by changing the chemical composition of the solid phase of the treated oat husk. The auto-hydrolysis of oat husk biomass with increasing hardness of the treatment conditions leads to a significant decline of hemicelluloses in the solid phase when the severity factor reaches 4.17 at the first stage and to a subsequent almost complete removal. Also, at the first stage, there is a slight change in the concentration of lignin and an increase in the proportion of cellulose in the solid fraction. A further increase in the severity of the conditions at the second stage with a change in the severity factor from 4.7 to 5.37 leads to the accumulation of lignin in the solid residue up to a maximum value of 45.7% as a result of the lignin condensation reaction. Due to the increase in the lignin content, the proportion of cellulose in the solid fraction decreases. The authors assessed the effectiveness of the pretreatment by the final accumulation of reducing substances obtained as a result of enzymatic hydrolysis using an enzyme complex consisting of the preparations "Cellolux-A" and "Bruzime BGX. At the first stage, with a decrease in the concentration of hemicelluloses, the availability of cellulose for enzymes significantly increases and the yield of reducing substances reaches a maximum value of 66.7% with a severity factor of autohydrolysis of 4.17. At the second stage, an increase of the severity of the processing conditions to a value of a factor of 5.37 leads to the accumulation of lignin in the fixed residue, which limits the effect of enzymes. It reduced the yield of substances during enzymatic hydrolysis to 30.0%.
КЛЮЧЕВЫЕ СЛОВА
oat husk, pretreatment, auto-hydrolysis, hydrothermal treatment, cellulose, enzymatic hydrolysis
Финансирование
The research was carried out within the framework of the state task of IPCET SB RAS "Fundamental bases of creation of integrated technology for processing light renewable non-food plant raw materials into products demanded by the Russian economy" with the state registration number of the project 121061500030-3.
Текст Список литературы
Текст
Текст (PDF)
Читать Скачать

1. Liu C.G., Xiao Y., Xia X.X., Zhao X.Q., Peng L., Srinophakun P., Bai F.W. Cellulosic ethanol production: Progress, challenges and strategies for solutions. Biotechnology Advances. 2019. V. 37. N 3. P. 491-504. DOI:https://doi.org/10.1016/j.biotechadv.2019.03.002

2. Gladysheva E.K., Golubev D.S., Skiba E.A. Investigation of bacterial nanocellulose biosynthesis by Medusomyces gisevii Sa-12 from enzymatic hydrolyzate obtained by alkaline delignification of miscanthus. Izvestiya vuzov. Prikladnaya khimiya i biotekhnologiya. 2019. V. 9. N 2. P. 260–269. DOI:https://doi.org/10.21285/2227-2925-2019-9-2-260-269 (in Russian).

3. Kashcheyeva E.I., Gismatulina Y.A., Budaeva V.V. Pretreatments of Non-Woody Cellulosic Feedstocks for Bacterial Cellulose Synthesis. Polymers. 2019. V. 11. P. 1645. DOIhttps://doi.org/10.3390/polym11101645.

4. Chashchilov D.V. Experience of pulping process research and equipment analysis: from laboratory bench to industrial plant. Ot khimii k tekhnologii shag za shagom. V. 2. N 1. 2021. P. 29-39. DOI:https://doi.org/10.52957/27821900_2021_01_29 (in Russian).

5. Bychkov A.L., Podgorbunskikh E.M., Ryabchikova E.I., Lomovsky O.I. The role of mechanical action in the process of the thermomechanical isolation of lignin. Cellulose. 2018. V. 25. P. 1-5. DOI:https://doi.org/10.1007/s10570-017-1536-y

6. Makarova E.I., Budaeva V.V. Bioconversion of non-food cellulosic biomass. Part 1. Izvestiya vuzov. Prikladnaya khimiya i biotekhnologiya. 2016. V. 6. N 2. P. 43-50. DOIhttps://doi.org/10.21285/2227-2925-2016-6-2-43-50 (in Russian).

7. Jiang K., Li L., Long L., Ding S. Comprehensive evaluation of combining hydrothermal pretreatment (autohydrolysis) with enzymatic hydrolysis for efficient release of monosaccharides and ferulic acid from corn bran. Industrial Crops and Products. 2018. V. 113. P. 348-357. DOI:https://doi.org/10.1016/j.indcrop.2018.01.047.

8. Lyu H., Zhou J., Geng Z., Lyu C., Li Y. Two-stage processing of liquid hot water pretreatment for recovering C5 and C6 sugars from cassava straw. Process Biochemistry. 2018. V. 75. P. 202-211. DOI:https://doi.org/10.1016/j.procbio.2018.10.003.

9. Cardona E., Llano B., Penuela M., Juan Pena J., Rios L.A. Liquid-hot-water pretreatment of palm-oil residues for ethanol production: An economic approach to the selection of the processing conditions. Energy. 2018. V. 160. P. 441-451. DOI:https://doi.org/10.1016/j.energy.2018.07.045.

10. Pavlov I.N., Denisova M.N., Makarova E.I., Budaeva V.V., Sakovich G.V. Versatile thermobaric setup and production of hydrotropic cellulose therein. Cellulose Chemistry and Technology. 2015. V. 49. N 9-10. P. 847 852.

11. Kashcheyeva E.I., Budaeva V.V. Determination of the reactivity of cellulosic substrates towards enzymatic hydrolysis. Zavoskaya laboratoriya. Diagnostika materialov. 2018. V. 84. N 10. P. 5-11. DOI: 0.26896/1028-6861-2018-84-10-5-11 (in Russian).

12. Obolenskaya A.V., Elnitskaya Z.P., Leonovich A.A. Laboratory work in wood and cellulose chemistry. M.: Ecologiya, 1991. 320 p. (in Russian).

13. Liu L., Liu, W., Hou Q., Chen J., Xu N. Understanding of pH value and its effect on autohydrolysis pretreatment prior to poplar chemi-thermomechanical pulping. Bioresource Technology. 2015. V. 196. P. 662–667. DOI:https://doi.org/10.1016/j.biortech.2015.08.034.

14. Batista G., Souza R.B.A., Pratto B., Dos Santos-Rocha M.S.R, Cruz A.J.G. Effect of severity factor on the hydrothermal pretreatment of sugarcane straw. Bioresource Technology. 2019. V. 275. P. 321-327.

15. Michelin M., Teixeira J.A. Liquid hot water pretreatment of multi feedstocks and enzymatic hydrolysis of solids obtained thereof. Bioresource Technology. 2016. V. 216. P. 862–869. DOI:https://doi.org/10.1016/j.biortech.2016.06.018.

16. Moniz P., Pereira H., Duarte L.C., Carvalheiro F. Hydrothermal production and gel filtration purification of xylo-oligosaccharides from rice straw. Industrial Crops and Products. 2014. V. 62. P. 460-465. DOI:https://doi.org/10.1016/j.indcrop.2014.09.020.

17. Podgorbunskikh E.M., Ryabchikova E.I., Bychkov A.L., Lomovskii O.I. Changes in the structure of cell wall polymers in thermomechanical treatment of highly lignified plant feedstock. Doklady Physical Chemistry. 2017. V. 473. Part 1. P. 49-51. DOI: https://doi.org/10.1134/S0012501617030046.

18. Ko J.K, Kim Y, Ximenes E, Ladisch M.R. Effect of liquid hot water pretreatment severity on properties of hardwood lignin and enzymatic hydrolysis of cellulose. Biotechnology and Bioengineering. 2015. V. 112. N 2. P. 252-262. DOI:https://doi.org/10.1002/bit.25349.

19. Zhu R., Yadama V. Effects of hot water extraction pretreatment on physicochemical changes of Douglas fir. Biomass and Bioenergy. 2016. V. 90. P. 78-89. DOI:https://doi.org/10.1016/j.biombioe.2016.03.028.

20. Chen T-Y., Wen J-L., Wang B., Wang H-M., Liu C-F., Sun R-C. Assessment of integrated process based on autohydrolysis and robust delignification process for enzymatic saccharification of bamboo. Bioresource Technology. 2017. V. 244. P. 717-725. DOI:https://doi.org/10.1016/j.biortech.2017.08.032.

PDF Текст JATS XML
Контактные лица
Главный редактор
Березин Дмитрий Борисович
Заместитель главного редактора
Абрамов Игорь Геннадьевич
abramovig@ystu.ru
Ответственный секретарь
Чиркова Жанна Вячеславовна
chirkovazhv@ystu.ru
3897
загрузок
ВАК РИНЦ
© chemintech.ru
Соглашение Политика защиты и обработки персональных данных Поддержка Powered by Editorum, 2026 Инструкции
Войти или Создать
* Забыли пароль?