In the ever-evolving landscape of sustainable food security and profit optimization, one challenge stands paramount: fruit postharvest loss. From the moment of harvest to the final consumer, fruits embark on a delicate journey ageing, decay, and quality degradation. The factors behind these losses? Extreme respiration rates and ethylene production, relentless adversaries to fruit freshness. But hope emerges from the depths of scientific exploration. Enter Nitric Oxide (NO), a humble gas with extraordinary potential. Delving deep into the intricate tapestry of plant physiology, NO unveils its prowess as a game-changer in postharvest preservation. By deftly modulating the activities of key enzymes in the ethylene synthesis pathway, NO emerges as a formidable ally against the forces of deterioration. In ""Harnessing Nitric Oxide: A Promising Approach to Fruit Postharvest Preservation,"" we embark on a journey of discovery, unraveling the mysteries of NO's impact on fruit physiology. From its role in inhibiting ethylene synthesis to its profound effects on extending shelf life, NO emerges as a beacon of hope in the quest for sustainable food preservation. Through meticulous research and real-world applications, this book illuminates the transformative power of NO in the food preservation industry.