A Systems-Level Framework with a Standardized Workflow for Industrial Production of Natural Plant-Derived Colorants

Plant-derived pigments—including chlorophylls, carotenoids, anthocyanins, betalains, and flavonoids—are of growing industrial interest due to their applications in food, textile, pharmaceutical, and cosmetic sectors. Traditional approaches to modifying plant colors often rely on anecdotal or unverified techniques, which are physiologically implausible or unsafe. This study presents a scientifically robust framework for the production, modulation, and extraction of natural plant colors, integrating molecular, agronomic, and post-harvest strategies. Using principles of pigment biosynthesis, transcriptional regulation, and secondary metabolism, we demonstrate that pigment accumulation can be precisely influenced through light quality and intensity, temperature, nutrient composition, elicitor treatments, and controlled environment agriculture (CEA). Quantitative models were developed to predict anthocyanin, carotenoid, and chlorophyll concentrations under defined growth conditions, with validated correlations between environmental stimuli and pigment yield (R² > 0.92). Post-harvest protocols, including solvent extraction, encapsulation, and stabilization using pH modulation and antioxidant co-factors, were optimized to maximize color retention and industrial applicability. This systems-level framework links genetic regulation, metabolic flux, and process engineering, enabling scalable, reproducible, and safe production of high-value natural pigments. The methodology eliminates unverified interventions such as electromagnetic manipulation or direct dye injection into plant tissues, replacing them with evidence-based, reproducible techniques. The findings provide actionable guidance for industrial-scale natural color manufacturing, bridging the gap between plant metabolic engineering and commercial color formulation. Keywords: natural pigments, anthocyanins, carotenoids, chlorophyll, flavonoids, plant secondary metabolism, pigment extraction, controlled environment agriculture, color stabilization, metabolic engineering. Please check the attachment for details