Fresh-cut zucchini shelf-life improves after applying glutamic acid biofertilizer

The goal of this study was to increase the fresh-cut zucchini shelf-life with glutamic acid biofertilizer.? Treatments consisted of foliar applications of aqueous solutions of the bacterial fermentation containing 30% L-glutamic acid (*), at 14th, 21st, 28th, and 35th days after transplanting, at 0.2 and 0.4 mL L-1, 100 mL per plant of 7 days, starting at 14 days after transplant during the whole cycle (42 days). Zucchini fruits were pre-selected, sanitized and minimally processed into strips. Fruits were weighed (100 g) and placed into plastic bags of low density polyethylene (70 um). After sealing bags were stored. Plastic bags were kept at 6 ? 1 ?C and 95% relativity humidity. Weight loss, soluble solids content, pH, titratable acidity, and color were performed at regular intervals of two days during eight days. To increase the fresh-cut zucchini shelf-life it is recommended to apply 0.4 mL L-1 glutamic acid biofertilizer. The results might be related with the nitrogen increasing due to the L-glutamic acid, which causes collenchyma thickening, and decreases the water diffusion (Schuphan, 1974). SourcesFresh-cut Zucchini shelf-life after applying glutamic acid biofertilizerJessica Welinski de O. D'Angelo1*, Marcelle Michelloti Bettoni1, ?tila Francisco M?gor1, Francine Lorena Cuquel11 Universidade Federal do Paran? (UFPR), Departamento de Fitotecnia e Fitossanitarismo, Curitiba, PR, Brasil. * Corresponding author: dangelo@ufpr.brScieloversi?n On-line ISSN 0718-3429Idesia, ahead of print? Epub 14-Abr-2017http://dx.doi.org/10.4067/S0718-34292017005000010 Picture by Fruites Claramunt? (EN, the glutamic acid is the additive E-620, a flavour enhancer)