Revista de Nutrição e Dietética

Abstrato

Application of innovative methods for the traceability of organic cauliflower

Simona Fabroni

Abstract
Different researches have been carried out over the years to investigate on new and reliable systems to test the authenticity of products
obtained using organic cultivation methods. At the same time, the monitoring of some chemical components, deriving from primary and/
or secondary metabolism of organic and conventional products, has highlighted the diversity induced by the two production techniques
while the difference in fertilization practices has been shown to impact on the isotopic distribution of some elements present in fruits
and vegetables, with particular reference to nitrogen. The INNOVABIO (‘Application of innovative methods for the traceability of organic farming
products’) research project (Italian Ministry of Agricultural, Food and Forestry Policies n. 93173/12/22/2017) aims to build up an integrated system
able to validate, through the acquisition of isotopic data and other chemical and biochemical parameters, the authenticity of organically managed
horticultural produces. Experiments have been carried out at CREA-OFA and FEM labs on soil, leave and fruit samples of cauliflower grown
at CREA-OF Monsampolo del Tronto (AP) by using six different fertilization treatments. Two organic treatments (“organic” and “1/3
organic”) were performed on a organically managed soil since many years. Three conventional treatments (“conventional”, “1/3 organic” and “2/3
organic”) were carried out on a formerly conventionally managed soil. Finally, one organic treatment “organic + agroecological service crops” was
performed on a certified soil for organic farming within the experimental long-term field MOVE LTE (MOnsampolo VEgetable organic Long Term
field Experiment). Preliminary results of the first year of project have showed that multivariate analysis of isotopic data combined with classical
quality parameters (TSS, TA, cut resistance, L*, a*, b*, head height, head diameter, ascorbic acid content, total polyphenols, ORAC units)
performed by Linear Discriminant Analysis gives the possibility to discriminate organic products from conventional ones thanks to the different
isotopic signature impressed by the different nitrogenous source combined with the qualitative pattern of the crops, significantly affected by the
different treatments.