Sprouting of Sorghum (Sorghum bicolor [L.] Moench): Effect of Drying Treatment on Protein and Starch Features

Autor: Eleonora Carini, Paola Conte, Alessandra Marti, Costantino Fadda, Monica Mattarozzi, Barbara Prandi, Tommaso Ganino, Mia Marchini, Claudia Folli
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Foods
Volume 10
Issue 2
Foods, Vol 10, Iss 407, p 407 (2021)
ISSN: 2304-8158
DOI: 10.3390/foods10020407
Popis: The nutritional and physicochemical properties of sorghum proteins and starch make the use of this cereal for food production challenging. Sprouting is a cost-effective technology to improve the nutritional and functional profile of grains. Two drying treatments were used after sorghum sprouting to investigate whether the drying phase could improve the protein and starch functionalities. Results showed that the drying treatment at lower temperature/longer time (40 °C for 12 h) extended the enzymatic activity that started during sprouting compared to the one performed at higher temperature/shorter time (50 °C for 6 h). An increased protein hydrolysis and water- and oil-holding capacity were found in the flour obtained by the former treatment. Higher protein matrix hydrolysis caused high exposure of starch to enzymes, thus increasing its digestibility, while worsening the technological functionality. Overall, modulating drying conditions could represent a further way, in addition to sprouting, to improve sorghum flour’s nutritional profile.
Databáze: OpenAIRE