Hydroponic Cultivation of Saffron for Enhanced Pharmaceutical Bioactive Compound Production

Abstract

Saffron (Crocus sativus L.) is a high-value medicinal plant recognized for its bioactive compounds, including crocin, picrocrocin, and safranal, which exhibit antioxidant, anticancer, and neuroprotective properties. Traditional soil-based cultivation faces significant challenges, including low yield, climatic dependency, and inconsistency in compound composition, which limit its potential for pharmaceutical applications. This study examines hydroponic cultivation as a cutting-edge and sustainable alternative to conventional methods, aiming to enhance saffron yield and optimise the production of bioactive compounds. Controlled hydroponic systems were designed with optimized nutrient formulations, regulated environmental parameters (temperature, humidity, and light intensity), and sterilized corm preparation to ensure healthy growth. A comparative analysis was conducted between soil-grown and hydroponically grown saffron, focusing on stigma yield, biomass production, and quantification of major bioactive compounds using high-performance liquid chromatography (HPLC). Preliminary findings reveal that hydroponically cultivated saffron achieved a 20–35% higher stigma yield and significantly elevated concentrations of crocin and safranal compared to soil-based systems. These improvements are attributed to efficient nutrient uptake and controlled growth conditions that favour secondary metabolite biosynthesis. The study concludes that hydroponic cultivation represents a scalable and sustainable strategy for standardized saffron production, offering strong potential for pharmaceutical industries requiring a reliable and high-quality bioactive source.