a disaccharide obtained by the hydrolysis of cellulose by cellulase. Formula: C12H22O11
Word origin
C20: from cellulose + bi-1 + -ose2
cellobiose in American English
(ˌselouˈbaious)
noun
a white, crystalline, water-soluble disaccharide, C12H22O11, that is obtained by the breakdown of cellulose or lichenin and yields glucose upon hydrolysis: used chiefly in bacteriology as a reagent
Word origin
[1900–05; cell(ulose) + -o- + bi-2 + -ose2]This word is first recorded in the period 1900–05. Other words that entered Englishat around the same time include: Young Turk, cathode-ray tube, clone, decompression, internship-ose is a suffix used in chemical terminology to form the names of sugars and other carbohydrates(amylose; fructose; hexose; lactose), and of protein derivatives (proteose)
Examples of 'cellobiose' in a sentence
cellobiose
Kinetic parameters were determined using cellobiose and a chromogenic artificial substrate.
Casanave Dominique, Huc Delphine, Mathis Hugues, Chauve Marie, Monot Frédéric, FerreiraNicolas 2010, 'Comparative kinetic analysis of two fungal β-glucosidases', Biotechnology for Biofuelshttp://www.biotechnologyforbiofuels.com/content/3/1/3. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
During hydrolytic process cellobiose accumulation causes feedback inhibition against most cellobiohydrolases and endoglucanases.
Min eWang, Xuefeng eLu 2016, 'Exploring the synergy between cellobiose dehydrogenase from Phanerochaete chrysosporiumand cellulase from Trichoderma reesei', Frontiers in Microbiologyhttp://journal.frontiersin.org/Journal/10.3389/fmicb.2016.00620/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Also, the glucose and cellobiose yields were 73.82% and 8.64%, respectively.
Xiao-Mei Hu, Shuang Li, Hui-Hui Ma, Bi-Xian Zhang, Yun-Fei Gao 2016, 'Pyrrolidinium Ionic Liquids as Effective Solvents for Lignin Extraction and EnzymaticHydrolysis of Lignocelluloses', BioResourceshttp://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_7672_Hu_Pyrrolidinium_Ionic_Liquids_Solvents. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
The sugar analysis investigated the presence of glucose, xylose, cellobiose, arabinose and xylitol.
Fernanda Granja da Silva OLIVEIRA, Sarah Raquel Gomes de LIMA-SARAIVA, Beatriz CavalcantiAmorim de MÉLO, Rebeca Almeida SILVA, Maria Aparecida Barboza dos SANTOS, Wagner PereiraFÉLIX, Jackson Roberto Guedes da Silva ALMEIDA 2019, 'Phytochemical screening, Sun Protection Factor (SPF) and sugar analysis of jatobáfruits (Hymenaea martiana Hayne): A native medicinal plant from the San FranciscoValley', Food Science and Technologyhttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019005008105&lng=en&tlng=en. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
This problem can be solved by adding β-glucosidase, which hydrolyzes cellobiose to glucose for fermentation.
Dashtban Mehdi, Qin Wensheng 2012, 'Overexpression of an exotic thermotolerant β-glucosidase in trichoderma reeseiand its significant increase in cellulolytic activity and saccharification of barleystraw', Microbial Cell Factorieshttp://www.microbialcellfactories.com/content/11/1/63. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
In particular, the enzymes that convert cellulose into cellobiose appear to be upregulated.
Jiaxi Miao, Mengmeng Wang, Lei Ma, Tuo Li, Qiwei Huang, Dongyang Liu, Qirong Shen 2019, 'Effects of amino acids on the lignocellulose degradation by Aspergillus fumigatusZ5: insights into performance, transcriptional, and proteomic profiles', Biotechnology for Biofuelshttp://link.springer.com/article/10.1186/s13068-018-1350-2. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Glucose, cellobiose, and cellulose (or mixtures thereof) were used as the carbon sources.
Fangfang Wang, Mingqiang Ai, Guihua Yang, Jiachuan Chen, Xiulan Chen, Feng Huang 2016, 'Influence of Carbon Source on the Production of Extracellular Ligninolytic Enzymesby Phanerochaete chrysosporium', BioResourceshttp://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_11_3_5676_Wang_Carbon_Source_Production_Ligninolytic. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Both glucose and cellobiose inhibited cellulase adsorption.
Ruoyu eDu, Rongxin eSu, Mingjia eZhang, Wei eQi, Zhimin eHe 2014, 'Cellulase recycling after high-solids simultaneous saccharification and fermentationof combined pretreated corncob', Frontiers in Energy Researchhttp://journal.frontiersin.org/Journal/10.3389/fenrg.2014.00024/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Moreover, the major products after cellulolytic hydrolysis were fructose, glucose, and cellobiose.
I-Son Ng, Xiaomin Wu, Yinghua Lu, Chuanyi Yao 2014, 'Trichoderma reesei Cellulase Complex in Hydrolysis of Agricultural Waste of GrapefruitPeel and Orange Peel', BioResourceshttp://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_09_4_6420_Ng_Trichoderma_Cellulase_Complex. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
We measured the relative gene abundances for cellobiose phosphorylase, endoglucanase, and beta-glucosidase to evaluate the cellulose-degrading potential of select mammals.
Emma C. L. Finlayson-Trick, Landon J. Getz, Patrick D. Slaine, Mackenzie Thornbury,Emily Lamoureux, Jamie Cook, Morgan G. I. Langille, Lois E. Murray, Craig McCormick,John R. Rohde, Zhenyu Cheng 2017, 'Taxonomic differences of gut microbiomes drive cellulolytic enzymatic potential withinhind-gut fermenting mammals', PLOS ONE10.1371/journal.pone.0189404. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)