Comprehensive analysis of targeted phenolic, sugar, and amino acid variation in 10-day-old wheatgrass in response to temperature and photoperiod

The present study investigated the phenolic profile, sugar composition and amino acid profile of lyophilised 10-day-old wheatgrass cultivated under varying temperature and photoperiod conditions. The targeted phenolic profile showed the abundant presence of chlorogenic, caffeic, ferulic and p-coumaric acid. The phenolic content varied with temperature and photoperiod conditions. The comprehensive sugar profile indicated the variation in the concentration of glucose with different growing conditions altered carbohydrate metabolism in wheatgrass. Similarly, the concentration of amino acids also varied with growing conditions. Notably, the concentration of proline, arginine and GABA in wheatgrass from all wheat varieties increased more prominently in photoperiod of 22 h and growth temperature of 22 degrees C in light and 17 degrees C in dark as a response of defence mechanism. The compositional makeup of 10-day-old wheatgrass varied significantly depending on the growing conditions. Wheatgrass juice powders (WJPs) were found to be rich in p-coumaric and ferulic acids. The sugar profile of WJPs also showed variations in response to different growing conditions. Additionally, concentrations of proline and GABA increased under conditions of photoperiod and temperature stress. image