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Research Article Open access CC BY 4.0

SEM & FTIR Analysis of Rice Husk to Assess the Impact of Physiochemical Pretreatment

Latika Bhatia, Dilip Kumar Sahu

Journal of Agriculture and Ecology Research International · pp. 1–13 · Published 2 Oct 2023

10.9734/jaeri/2023/v24i6556

Abstract

The objective of this research is to obtain FTIR and SEM profile of native and pulverized rice husk in order to understand its feasibility for further enzymatic digestion. Pretreatment is one of the pivotal processes in utilizing lignocellulosic biomass for producing bioethanol. An ecofriendly system only allows mild pretreatment strategies for industrial bioethanol production. The steam explosion pretreatment process is reported to be efficient using rice husk for these procedures with the use of mild acids or bases. In the current work, pretreatment method like steam explosion pretreatment method was used with NaOH and HNO3 to degrade the complex structures and release the sugars entrapped within lignin. The pretreatment effect on the matrix of husk cell-wall and its constituents are characterized microscopically and spectroscopically by scanning electron microscopy and Fourier Transform Infrared Spectroscopy respectively, in order to comprehend the future possibility of its digestion by cellulase. The crystallinity index of native substrate is very high (0.94 cm-1), which reduced significantly to -0.277 and -0.34 cm-1 when pretreated with 2% HNO3 and 10% HNO3 respectively. The steam explosion pretreatment does not support the degradation of the cellulosic fibrillar arrangement, but causes intense re-localization of lignin. The descriptions of scanning electron microscopy were in agreement with the findings of Fourier Transform Infrared Spectroscopy; the ordered structure generally found in native rice husk was missing, suggesting that the structure of the 2% HNO3 treated rice husk was more amorphous. The fractional removal of hemicelluloses and total removal of wax is the outcome of this research work. Results revealed that steam explosion pretreatment increases the possibility of digestion by enhancing cellulose accessibility through lignin re-localization and a partial elimination of hemicelluloses rather than by cell wall disruption.

Bioethanol rice husk steam explosion FTIR SEM crystallinity index

References (32)

  1. 1 Pretreatment technologies for an efficient bioethanol production process based on enzymatic hydrolysis: A review [DOI]
  2. 2 Standard Normal Variate Transformation and De-Trending of Near-Infrared Diffuse Reflectance Spectra [DOI]
  3. 3 Crystalline structure analysis of cellulose treated with sodium hydroxide and carbon dioxide by means of X-ray diffraction and FTIR spectroscopy [DOI]
  4. 4 Structural analysis of photodegraded wood by means of FTIR spectroscopy [DOI]
  5. 5 The path forward for lignocellulose biorefineries: Bottlenecks, solutions, and perspective on commercialization [DOI]
  6. 6 AMORPHOUS CELLULOSE - STRUCTURE AND CHARACTERIZATION
  7. 7 Cell wall structural changes in wheat straw pretreated for bioethanol production [DOI]
  8. 8 Commercializing lignocellulosic bioethanol: technology bottlenecks and possible remedies [DOI]
  9. 9 Waste biomass valorization for the production of biofuels and value-added products: A comprehensive review of thermochemical, biological and integrated processes [DOI]
  10. 10 Nanocellulose from rice husk following alkaline treatment to remove silica [DOI]
  11. 11 Characterization of anatomical features and silica distribution in rice husk using microscopic and micro-analytical techniques [DOI]
  12. 12 FT-IR Investigation of Cell Wall Polysaccharides from Cereal Grains. Arabinoxylan Infrared Assignment [DOI]
  13. 13 Alkaline pretreatment of spruce and birch to improve bioethanol and biogas production [DOI]
  14. 14 Determination of Silica Activity Index and XRD, SEM and EDS Studies of Amorphous SiO2 Extracted from Rice Husk Ash [DOI]
  15. 15 Elucidation of the effect of ionic liquid pretreatment on rice husk via structural analyses [DOI]
  16. 16 Lignocellulose derived functional oligosaccharides: production, properties, and health benefits [DOI]
  17. 17 Sustainable Biotechnology- Enzymatic Resources of Renewable Energy [DOI]
  18. 18 Fourier transform infrared spectroscopy (FTIR) analysis of paddy straw pulp treated using deep eutectic solvent [DOI]
  19. 19 Fourier-Transform Infrared and Raman Spectroscopic Study of Biochemical and Chemical Treatments of Oak Wood (Quercus rubra) and Barley (Hordeum vulgare) Straw [DOI]
  20. 20 Rapid estimation of sugar release from winter wheat straw during bioethanol production using FTIR-photoacoustic spectroscopy [DOI]
  21. 21 Rapid characterization of molecular chemistry, nutrient make-up and microlocation of internal seed tissue [DOI]
  22. 22 Ultra-structural mapping of sugarcane bagasse after oxalic acid fiber expansion (OAFEX) and ethanol production by Candida shehatae and Saccharomyces cerevisiae [DOI]
  23. 23 A study of chemical structure of soft and hardwood and wood polymers by FTIR spectroscopy [DOI]
  24. 24 Mild-temperature dilute acid pretreatment for integration of first and second generation ethanol processes [DOI]
  25. 25 Attenuated Total Reflectance Fourier Transform Infrared Spectroscopy: An analytical technique to understand therapeutic responses at the molecular level [DOI]
  26. 26 High-Efficiency Conversion of Bread Residues to Ethanol and Edible Biomass Using Filamentous Fungi at High Solids Loading: A Biorefinery Approach [DOI]
  27. 27 Cellulase and Xylanase Production by a Newly Isolated Penicillium crustosum Strain under Solid-State Fermentation, Using Water Hyacinth Biomass as Support, Substrate, and Inducer [DOI]
  28. 28 Biohydrogen Production: Status and Perspectives [DOI]
  29. 29 Current Advancements in Microbial Fuel Cell Technologies [DOI]
  30. 30 Technological Advancements in Sustainable Production of Second Generation Ethanol Development: An Appraisal and Future Directions [DOI]
  31. 31 Multi-Scale Structural Studies of Sequential Ionic Liquids and Alkali Pretreated Corn Stover and Sugarcane Bagasse [DOI]
  32. 32 Interpretation of Infrared Spectra, A Practical Approach [DOI]

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