Nondairy ice cream based on fermented yam ( Dioscorea sp.).

Autor: Batista NN; Department of Food Science Federal University of Lavras Lavras Brazil., Ramos CL; Department of Biology Federal University of Lavras Lavras Brazil.; Department of Basic Science Federal University of Vales do Jequitinhonha e Mucuri Diamantina Brazil., Pires JF; Department of Biology Federal University of Lavras Lavras Brazil., Moreira SI; Department of Plant Pathology Federal University of Lavras Lavras Brazil., Alves E; Department of Plant Pathology Federal University of Lavras Lavras Brazil., Dias DR; Department of Food Science Federal University of Lavras Lavras Brazil., Schwan RF; Department of Biology Federal University of Lavras Lavras Brazil.
Jazyk: angličtina
Zdroj: Food science & nutrition [Food Sci Nutr] 2019 Apr 23; Vol. 7 (5), pp. 1899-1907. Date of Electronic Publication: 2019 Apr 23 (Print Publication: 2019).
DOI: 10.1002/fsn3.1051
Abstrakt: Background: The demand for industrialized foods that contribute to health and well-being has characterized the new generation of consumers. Yam ( Dioscorea sp.) is a nutritious food; however, it is not used very much in industrial food processes. The objective of this study was to develop and to characterize a truly dairy-free low-fat ice cream prepared from unfermented and fermented with yam dough.
Results: The fermentation was conducted by Leuconostoc lactic CCMA 0415 remained viable (10 7  CFU/g) during 90 days of storage. The fermentation process reduced the starch concentration from 26.82% to 22.35% and the protein concentration from 4.68% to 3.99% and increased the concentration of some minerals (K, S, Cu, Mn, Zn, and Fe). The total phenolic contents for fermented and unfermented ice creams were 51 and 54 mg, respectively. The radical scavenging activity were 18% and 10% with the 1,1-diphenyl-2-picrylhydrazyl method and 44% and 26% with the 2,2'-azino-bis (3 ethylbenzo-thiazoline-6-sulfonic acid) method for the unfermented and fermented samples, respectively. The fermented and unfermented ice creams were both characterized as non-Newtonian fluids exhibiting pseudoplastic behaviors.
Conclusions: These results indicated that yam is a suitable substitute for milk, thus making it an option to produce edible lactose-free ice cream with low fat.
Competing Interests: The authors declare no conflict of interest.
Databáze: MEDLINE
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