Author
Sumitra Ramachandran
Other affiliations: Council of Scientific and Industrial Research, Birla Institute of Technology and Science, Synergy University
Bio: Sumitra Ramachandran is an academic researcher from Blaise Pascal University. The author has contributed to research in topics: Fermentation & Aspergillus niger. The author has an hindex of 13, co-authored 23 publications receiving 1974 citations. Previous affiliations of Sumitra Ramachandran include Council of Scientific and Industrial Research & Birla Institute of Technology and Science.
Papers
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TL;DR: Gluconic acid is a mild organic acid derived from glucose by a simple oxidation reaction, the principal being sodium gluconate, which has wide applications in food and pharmaceutical industry.
Abstract: Summary Gluconic acid is a mild organic acid derived from glucose by a simple oxidation reaction. The reaction is facilitated by the enzyme glucose oxidase (fungi) and glucose dehydrogenase (bacteria such as Gluconobacter). Microbial production of gluconic acid is the preferred method and it dates back to several decades. The most studied and widely used fermentation process involves the fungus Aspergillus niger. Gluconic acid and its derivatives, the principal being sodium gluconate, have wide applications in food and pharmaceutical industry. This article gives a review of microbial gluconic acid production, its properties and applications.
490 citations
TL;DR: Various applications of oil cakes in fermentation and biotechnological processes, their value addition by implementation in feed and energy source (for the production of biogas, bio-oil) as well are discussed.
468 citations
TL;DR: In this article, the optimal production of α-amylase by Aspergillus oryzae NRRL 6270 in solid-state fermentation (SSF) was attempted by using a Box-Behnken design under the response surface methodology.
373 citations
TL;DR: In this paper, a solid-state fermentation (SSF) was carried out using coconut oil cake (COC) as substrate for the production of alpha-amylase using a fungal culture of Aspergillus oryzae.
239 citations
TL;DR: Under optimized conditions, the production of phytase reached 44.5 U/gds, which was almost 1.5-fold higher than the highest yield obtained with any individual substrate used in this study and was more than 4-foldHigher than that obtained from WB.
140 citations
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TL;DR: In this paper, the potential of lignocellulosic biomass as an alternative platform to fossil resources has been analyzed and a critical review provides insights into the potential for LBS.
1,763 citations
TL;DR: In this article, the potential of lignocellulosic biomass as an alternative platform to fossil resources has been analyzed and a critical review provides insights into the potential for LBS.
Abstract: The demand for petroleum dependent chemicals and materials has been increasing despite the dwindling of their fossil resources. As the dead-end of petroleum based industry has started to appear, today's modern society has to implement alternative energy and valuable chemical resources immediately. Owing to the importance of lignocellulosic biomass being the most abundant and bio-renewable biomass on earth, this critical review provides insights into the potential of lignocellulosic biomass as an alternative platform to fossil resources. In this context, over 200 value-added compounds, which can be derived from lignocellulosic biomass by various treatment methods, are presented with their references. Lignocellulosic biomass based polymers and their commercial importance are also reported mainly in the frame of these compounds. This review article aims to draw the map of lignocellulosic biomass derived chemicals and their synthetic polymers, and to reveal the scope of this map in today's modern chemical and polymer industry.
1,089 citations
TL;DR: In this paper, the main characteristics and potential applications of spent grain are reviewed focussing on these alternative uses of this agro-industrial byproduct as a raw material in foods, in energy production and in biotechnological processes.
794 citations
TL;DR: Recent advances and developments in catalytic transformations of the carbohydrate content of lignocellulosic biomass to IPCs (i.e., ethanol, 3-hydroxypropionic acid, isoprene, succinic and levulinic acids, furfural, and 5-hydroxymethylfurfural) are overviewed.
Abstract: The replacement of fossil resources that currently provide more than 90% of our energy needs and feedstocks of the chemical industry in combination with reduced emission of carbon dioxide is one of the most pressing challenges of mankind. Biomass as a globally available resource has been proposed as an alternative feedstock for production of basic building blocks, which could partially or even fully replace the currently utilized fossil-based ones in well-established chemical processes. The destruction of lignocellulosic feed followed by oxygen removal from its cellulose and hemicellulose content by catalytic processes results in the formation of initial platform chemicals (IPCs). However, their sustainable production strongly depends on the availability of resources, their efficient or even industrially viable conversion processes, and replenishment time of feedstocks. Herein, we overview recent advances and developments in catalytic transformations of the carbohydrate content of lignocellulosic biomass ...
784 citations
TL;DR: How such processes influence heavy metal uptake through various biogeochemical processes including translocation, transformation, chelation, immobilization, solubilization, precipitation, volatilization and complexation of heavy metals ultimately facilitating phytoremediation is illustrated.
752 citations