Insights on sustainable approaches for production and applications of value added products

Evaluation of a new antimicrobial agent production (RSMM C3) by using metagenomics approaches from Egyptian marine biota

“…The finest part of the process was the stationary phase and the best phase for developing antimicrobial agents at various stages of growth [ 40 ]. For successful and effective fermentation of a specific bioactive molecule and high product yields, the performance of a supporting production medium was critical [ 41 , 42 ].…”

Colorful Treasure From Agro-Industrial Wastes: A Sustainable Chassis for Microbial Pigment Production

“…Nonetheless, their effective utilization will depend on the nature of their raw composition and will influence the processing steps. For example, lignocellulosic wastes such as corncob, sugarcane bagasse, rice straw, wheat straw, and rice husk will require the deployment of an optimal and economical pretreatment approach before they can be used for hydrolyzate production by the action of saccharifying enzymes ( Sodhi et al, 2021 ; Zhang H. et al, 2021 ). Apart from biomass-derived hydrolyzates used as a nutrient source for pigment production via submerged fermentation, the use of waste substrates as matrix via SSF has also been widely reported ( Gmoser et al, 2019 ; Chen et al, 2021 ; Dos Santos et al, 2021 ; Kumar Shetty et al, 2021 ).…”

“…In this context, the agro-industrial residues have the potential to serve as ideal substrates for microbial pigment production. These residues left unutilized add to waste generation which is expected to reach 3.40 billion metric tons by 2050 ( Usmani et al, 2020 ; Sodhi et al, 2021 ). The unregulated dumping of waste has already made waste management a humongous challenge, which requires serious addressal to prevent environmental and health hazards.…”

“…These pretreatment processes aid in the structural deconstruction of complex polymeric linkages, allowing improved accessibility to hydrolytic enzymes during saccharification ( Grewal et al, 2017 ; Zhang H. et al, 2021 ). For further microbial bioprocessing of these untreated or pretreated residues for pigment production, both submerged and SSF techniques have been effectively used ( Aman Mohammadi et al, 2021 ; Rana et al, 2021 ; Sodhi et al, 2021 ).…”

Conversion sweet sorghum biomass to produce value-added products

“…Thus, a strategy combining acidic ethanol extraction and ion precipitation was used to extract bioactive substances from sweet sorghum fresh stalks [ 59 ], and a final total phenolic concentration of 276.79 mg gallic acid equivalents (GAE)/g dried extract was obtained. Considering the safety of metal ions and improving high yield of bioactive products, a serial of environmentally friendly extraction methods need to be further tried, such as high pressure-assisted method [ 60 ], microwave-assisted method [ 61 ], ultrasound-assisted method [ 62 ], pulse electric field method [ 63 ] and supercritical carbon dioxide method [ 64 ]. For instance, a combination of acetonitrile and microwave-assisted method leaded to a high yield of flavonoid (9.69 mg catechin/g dried leaves) and phenolic compounds (10.45 mg GAE/g dried leaves) from olive tree (leaves) [ 65 ].…”