Aug 2026· Canadian Journal of Chemical Engineering· 0 citations· 139 references
Abstract
Growing environmental concerns associated with fossil‐based materials, coupled with their limited reserves, have intensified the global pursuit of renewable alternatives. Among these, natural pigments derived from plants and algae are emerging as promising sustainable resources with diverse industrial applications. This review highlights major categories of natural pigments including chlorophylls, carotenoids, xanthophylls, and phenolics, focusing on their extraction methodologies and significance in food, textile, pharmaceutical, and life sciences industries. Particular emphasis is placed on supercritical carbon dioxide (scCO
2
) extraction, an eco‐friendly approach that ensures high selectivity and improves pigment yields under optimized operational conditions. The effect of critical parameters, such as, pressure, temperature, co‐solvent, and extraction time on pigment recovery and quality are evaluated comprehensively. Furthermore, the review addresses current limitations related to scale‐up of scCO
2
based extraction systems and explores future directions, which includes integration of machine learning tools to enhance process efficiency and pigment recovery.
The extraction of natural pigments from plant-based food by-products represents a promising approach for waste utilisation and the development of sustainable food ingredients. Agricultural and food industry residues, including peels, pomace, and various other processing by-products, are rich in bioactive pigments inclu...
Maria-Jenica Roșca-Urs, C. Semeniuc· Applied Sciences· 0 citations
The substantial amount of byproducts generated during the production and industrial processing of plant crops, including cereals, legumes, oilseeds, fruits, and vegetables, is a significant contributor to environmental damage and nutritional insecurity. Nevertheless, they are valuable sources of nutrients, particularly...
Subith Cheeyattil, D. Aggarwal, Madhuresh Dwivedi et al.· Sustainable Food Proteins· 0 citations
Microbial pigments have been emerged as a promising next-generation food colourants because of increasing consumer demands for sustainable, natural, and health-promoting actions. Unlike plant-derived pigments, microbial pigments provide benefits like scalability, rapid production, and consistent yield independent of se...
A. H. Duwan, Achsah Rajendran Startha Christabel, A. Raja et al.· Food Production, Processing...· 0 citations
Ensuring long-term agricultural sustainability depends heavily on preserving soil health, a process fundamentally governed by humic substances (HSs) and their vital physicochemical and biological functions. However, because intensive farming rapidly degrades natural HSs reserves, external replenishment has become essen...
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Environmental concerns regarding the persistence and toxicity of synthetic colourants have stimulated increasing interest in sustainable bio-based pigments for textile applications. Among emerging alternatives, violacein, a purple indole-derived pigment produced by several bacterial species, has attracted considerable...
Nelson Durán, Symone C. de Castro, F. H. dos Santos Rodrigues et al.· Journal of Scientific Resear...· 0 citations
The synergistic model synthesized seaweed nanoparticles have the potential to improve the whole energy chain of protein, and this chapter puts forward a possible, circular route of developing a more robust and secure global food system.
Renganthan Senthil, K. Sundaram, G. Bupesh et al.· Advances in Protein Chemistr...· 0 citations
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