Biostimulants from food processing by‐products: agronomic, quality and metabolic impacts on organic tomato (Solanum lycopersicum L.)

Abstract

The results were indicative of the biostimulant activity of these extracts and demonstrated them, particularly FPR, as promising candidates for enhancing plant productivity and fruit quality. © 2017 Society of Chemical Industry.

The Use of a Plant-Based Biostimulant Improves Plant Performances and Fruit Quality in Tomato Plants Grown at Elevated Temperatures

“…Higher content of reduced AsA was observed in all the genotypes and of total AsA in the genotypes E17 and PDVIT. This result confirms data previously obtained in other studies that demonstrated an increase in AsA content in tomato, in kiwi fruits and in peppers after the application of plant-based biostimulants [36,41]. Contrary to what seen in the leaf, the content of total phenols in berries of treated E17 and E36 genotypes was higher compared to the non-treated control.…”

“…Assessing the content of lipophilic antioxidants, the treatment with the biostimulant had no effects on the content of carotenoids and chlorophylls but only on the total lipophilic antioxidant activity. Similar results were obtained by Chehade et al [36] in tomato. On the contrary, Rouphael et al [41] demonstrated that in tomato foliar applications of a legume-derived protein hydrolysate had an effect also on lycopene content.…”

“…In this paper four different tomato landraces were grown at elevated temperatures under a plastic walk-in tunnel and were treated or not with a plant-based biostimulant named CycoFlow. The higher height demonstrated in the majority of the tomato plants treated with CycoFlow compared to non-treated plants is in agreement with previous studies on different plant species and biostimulants [36][37][38][39][40]. Probably, the presence of signaling molecules in the biostimulant, such as free amino acids, promoted endogenous phytohormonal biosynthesis thus stimulating growth and also fruit setting [41].…”

“…Moreover, cytokinins mitigate stresses induced by free radicals by direct scavenging and also by preventing ROS formation inhibiting xanthine oxidation [39]. Also, the treatment with CycoFlow overall increased the number of fruits, as previously demonstrated also in tomatoes treated with other biostimulants [10,36,[39][40][41]. For example, Rouphael et al [41] demonstrated that application of a protein hydrolysate in tomato increased in one cultivar the fruit mean weight and in another cultivar the number of fruits.…”

Effects of Trichoderma Biostimulation on the Phenolic Profile of Extra-Virgin Olive Oil and Olive Oil By-Products

“…According to the "Global Biostimulants Market 2019-2027", the global market for biostimulants has been projected to reach $625.67 billion by 2027. The biostimulants improve the nitrogen metabolism, influence the modulation of cell metabolism, control the transfer of nutrients, supervise the lipid biosynthesis, and regulate the stimulation of the soil microbial activity and the root growth [3,4]. Some researchers ascribe their protective effect to the activation of the antioxidant defense system of plants and the production of the phenolic compounds.…”