Browsing by Author "Arvindnarayan, Sundaram"

Now showing 1 - 2 of 2
  • Thumbnail Image
    ItemOpen Access
    Lignocellulose biohydrogen towards net zero emission: a review on recent developments
    (Elsevier, 2022-10-12) Laya, Chyi–How; Dharmaraja, Jeyaprakash; Shobana, Sutha; Arvindnarayan, Sundaram; Priya, Retnam Krishna; Jeyakumar, Rajesh Banu; Saratale, Rijuta Ganesh; Park, Young-Kwon; Kumar, Vinod; Kumar, Gopalakrishnan
    This review mainly determines novel and advance physical, chemical, physico–chemical, microbiological and nanotechnology–based pretreatment techniques in lignocellulosic biomass pretreatment for bio–H2 production. Further, aim of this review is to gain the knowledge on the lignocellulosic biomass pretreatment and its priority on the efficacy of bio–H2 and positive findings. The influence of various pretreatment techniques on the structure of lignocellulosic biomass have presented with the pros and cons, especially about the cellulose digestibility and the interference by generation of inhibitory compounds in the bio–enzymatic technique as such compounds is toxic. The result implies that the stepwise pretreatment technique only can ensure eventually the lignocellulosic biomass materials fermentation to yield bio–H2. Though, the mentioned pretreatment steps are still a challenge to procure cost–effective large–scale conversion of lignocellulosic biomass into fermentable sugars along with low inhibitory concentration.
  • Thumbnail Image
    ItemOpen Access
    Lignocellulosic biomass conversion via greener pretreatment methods towards biorefinery applications
    (Elsevier, 2022-11-28) Dharmaraja, Jeyaprakash; Shobana, Sutha; Arvindnarayan, Sundaram; Francis, Rusal Raj; Jeyakumar, Rajesh Banu; Saratale, Rijuta Ganesh; Ashokkumar, Veeramuthu; Bhatia, Shashi Kant; Kumar, Vinod; Kumar, Gopalakrishnan
    Lignocellulose biomass during pretreatment releases various compounds, among them the most important is reducing sugars, which can be utilized for the production of biofuels and some other products. Thereby, innovative greener pretreatment techniques for lignocellulosic materials have been considered to open a new door in the aspects of digestibility of the rigid carbohydrate–lignin matrix to reduce the particle size and remove hemicellulose/lignin contents to successfully yield valid bioproducts. This article reviews about the composition of lignocelluloses and emphasizes various green pretreatments viz novel green solvent–based IL and DES steam explosion, supercritical carbon dioxide explosion (Sc–CO2) and co–solvent enhanced lignocellulosic fractionation (CELF) along with suitable mechanistic pathway of LCB pretreatment process. Finally, this article concludes that the existing pretreatments should be redesigned to conquer the demands by large scale production and suggests combined pretreatment methods to carry out various biomass pre–processing.