Bimi® is a new commercial variety of broccoli, obtained from the cross between conventional broccoli (Brassica oleracea L. var italica) and Chinese broccoli ((B. oleracea L. var alboglabra). Compared to traditional cultivars, it stands out for its delicate and less pungent flavor, with notes reminiscent of asparagus, and for its morphology characterized by a long, slender stem with small florets. From a nutritional point of view, Bimi® represents a valuable source of bioactive compounds, including chlorophylls, carotenoids, polyphenols, vitamins, glucosinolates, and minerals, which provide antioxidant and anti-inflammatory properties and contribute to the prevention of oncological and cardiovascular diseases. Following harvest, Bimi® is particularly perishable: yellowing, stem bending, tissue deterioration, and a reduction in bioactive compounds compromise its nutritional value and sensory characteristics, making proper storage management essential. Furthermore, post-harvest processes and processing methods influence the availability and bioaccessibility of nutrients, as well as color, texture, and flavor. This paper analyzes the impact of different technological approaches and cooking techniques on the nutritional and qualitative profile of Bimi®. Technological interventions such as controlled atmosphere storage, UV-C radiation treatments, the use of natural elicitors and melatonin, the application of edible coatings, and the use of electrolyzed water are emerging as effective strategies to reduce quality loss during storage and extend shelf life, while preserving nutritional properties. At the same time, thermal treatments such as boiling, steaming, frying, grilling, microwaving, and sous-vide cooking differently affect the stability of bioactive compounds and vitamins, also leading to variations in sensory perception and consumer acceptability. The integrated analysis of these aspects provides an overview of the potential of Bimi® as a functional food and of the possibilities for developing targeted processes to enhance its properties, with attention not only to direct consumption but also to the formulation of enriched products, dietary supplements, and the sustainable recovery of by-products as additional sources of high value-added bioactive compounds.
Il Bimi® è una nuova varietà commerciale di broccoli, ottenuta dall’incrocio tra il broccolo convenzionale (Brassica oleracea, gruppo Italica) e il broccolo cinese (B. oleracea, gruppo Alboglabra). Rispetto alle cultivar tradizionali, si distingue per il sapore delicato e meno pungente, con note che ricordano l’asparago, e per la morfologia caratterizzata da un fusto lungo e sottile con piccoli fioretti. Dal punto di vista nutrizionale, il Bimi® rappresenta una fonte preziosa di composti bioattivi, tra cui polifenoli, vitamine, glucosinolati e minerali, che conferiscono proprietà antiossidanti e antinfiammatorie e contribuiscono alla prevenzione di patologie oncologiche e cardiovascolari. A seguito della raccolta, il Bimi® risulta particolarmente deperibile: ingiallimento, piegamento del gambo, deterioramento dei tessuti e riduzione dei composti bioattivi compromettono valore nutrizionale e caratteristiche sensoriali, rendendo essenziale un’adeguata gestione dello stoccaggio. Inoltre, i processi post-raccolta e le modalità di trasformazione influenzano la disponibilità e la bioaccessibilità dei nutrienti, nonchè colore, consistenza e sapore. Il presente elaborato analizza l’impatto di differenti approcci tecnologici e tecniche di cottura sul profilo nutrizionale e qualitativo del Bimi®. Interventi tecnologici quali la conservazione in atmosfera controllata, i trattamenti con radiazioni UV-C, l’impiego di elicitori naturali e della melatonina, l’applicazione di rivestimenti commestibili e l’uso di acqua elettrolizzata si stanno affermando come strategie efficaci per ridurre la perdita di qualità durante lo stoccaggio e prolungare la conservabilità, preservando al contempo le caratteristiche nutrizionali. Parallelamente, trattamenti termici come la bollitura, la cottura a vapore, la frittura, la grigliatura, la cottura a microonde e il trattamento sous-vide influenzano in misura diversa la stabilità dei composti bioattivi e delle vitamine, determinando anche variazioni nella percezione sensoriale e nell’accettabilità del prodotto da parte del consumatore. L’analisi integrata di questi aspetti fornisce un quadro sulle potenzialità del Bimi® come alimento funzionale e sulle possibilità di sviluppare processi mirati a valorizzarne le proprietà, con attenzione non solo al consumo diretto, ma anche alla formulazione di prodotti arricchiti, integratori e al recupero sostenibile dei sottoprodotti come ulteriori fonti di composti bioattivi ad elevato valore aggiunto.
Influenza dei trattamenti termici e tecnologici sulla qualità nutrizionale e fitochimica del Bimi® (Brassica oleracea var. italica × alboglabra)
NALON, GAIA
2024/2025
Abstract
Bimi® is a new commercial variety of broccoli, obtained from the cross between conventional broccoli (Brassica oleracea L. var italica) and Chinese broccoli ((B. oleracea L. var alboglabra). Compared to traditional cultivars, it stands out for its delicate and less pungent flavor, with notes reminiscent of asparagus, and for its morphology characterized by a long, slender stem with small florets. From a nutritional point of view, Bimi® represents a valuable source of bioactive compounds, including chlorophylls, carotenoids, polyphenols, vitamins, glucosinolates, and minerals, which provide antioxidant and anti-inflammatory properties and contribute to the prevention of oncological and cardiovascular diseases. Following harvest, Bimi® is particularly perishable: yellowing, stem bending, tissue deterioration, and a reduction in bioactive compounds compromise its nutritional value and sensory characteristics, making proper storage management essential. Furthermore, post-harvest processes and processing methods influence the availability and bioaccessibility of nutrients, as well as color, texture, and flavor. This paper analyzes the impact of different technological approaches and cooking techniques on the nutritional and qualitative profile of Bimi®. Technological interventions such as controlled atmosphere storage, UV-C radiation treatments, the use of natural elicitors and melatonin, the application of edible coatings, and the use of electrolyzed water are emerging as effective strategies to reduce quality loss during storage and extend shelf life, while preserving nutritional properties. At the same time, thermal treatments such as boiling, steaming, frying, grilling, microwaving, and sous-vide cooking differently affect the stability of bioactive compounds and vitamins, also leading to variations in sensory perception and consumer acceptability. The integrated analysis of these aspects provides an overview of the potential of Bimi® as a functional food and of the possibilities for developing targeted processes to enhance its properties, with attention not only to direct consumption but also to the formulation of enriched products, dietary supplements, and the sustainable recovery of by-products as additional sources of high value-added bioactive compounds.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/99454