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Publication datasheet
Title:
Lo stoccaggio del sorgo zuccherino. Influenza della lunghezza dello stelo sulle perdite di zucchero
Authors:
Assirelli, A.; Amaducci, S.; Suardi, A.; Del Giudice, A.; Scarfone, A.; Santangelo, E.; Pari, L.
Year:
2014
Languages:
ITA, eng
Journal:
Sherwood
Kind of publication:
Cartaceo
Location:
Arezzo
Editor:
Compagnia delle Foreste
Abstract in Italian:
La lunghezza del periodo di stoccaggio e la dimensione del prodotto stoccato costituiscono due fattori che influenzano le perdite in zuccheri nel sorgo zuccherino. La ricerca ha investigato la variazione in zuccheri che ha luogo in porzioni di culmo di diversa dimensione nel corso di uno stoccaggio a lungo termine.
Abstract in English:
The sugar content of Sweet sorghum (Sorghum bicolor (L.) Moench) in the plant stems varies from 12 to 25% according to the plant type, but sugars are very easy to be lost, especially during harvesting and storage. The former are due to lack of machineries capable to harvest the entire plant, while storage losses are due to fermentation processes. Therefore, the identification of suitable harvesting and storage systems is fundamental to optimize the energetic yield of the crop. The losses of fermentable sugars follow different patterns and particular attention has been paid to the size of the material . The main objective of the present work is to monitor the time course of dry matter and sugar content in sweet sorghum over a storage period of 75 days. The analysis has been carried out dividing the stems in portions of different length (whole stem, 1/2, 1/4, 1/8, and 1/16 of the whole stalk length) to compare the rate of sugar losses. The sugar distribution along the stem demonstrated that sugars content tends to decrease going from the base to the top, a helpful information for the choice of cutting height. The sugar loss during storage is highly influenced by the size of the stem portion obtained at harvest. The lower rate of sugar loss was measured on whole stems. The long-term storage appears achievable but its length is strictly related to the size of stalk portion.

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