期刊
FERMENTATION-BASEL
卷 5, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/fermentation5010003
关键词
tiger nuts; horchata; lactic fermentation; beverage; quality; product development
资金
- Federation BioST of the University of La Reunion
- European Union [RE0017203]
- Generalitat Valenciana [GV/2018//040]
- Ministry of Economy and Competitiveness (MINECO, Spain) Juan de la Cierva program [FJCI-2016-29486]
Tiger nut (Cyperus esculentus) is a tuber that can be consumed raw or processed into beverages. Its nutritional composition shows a high content of lipid and dietary fiber, close to those of nuts, and a high content of starch, like in other tubers. Tiger nuts also contain high levels of phosphorus, calcium, and phenolic compounds, which contribute to their antioxidant activity. From those characteristics, tiger nuts and derived beverages are particularly relevant to limit food insecurity in regions where the plant can grow. In Europe and United States, the tiger nut derived beverages are of high interest as alternatives to milk and for gluten-free diets. Fermentation or addition of probiotic cultures to tiger nut beverages has proven the ability of lactic acid bacteria to acidify the beverages. Preliminary sensory assays concluded that acceptable products are obtained. In the absence of pasteurization, the safety of tiger nut-based beverages is not warranted. In spite of fermentation, some foodborne pathogens or mycotoxigenic fungi have been observed in fermented beverages. Further studies are required to select a tailored bacterial cocktail which would effectively dominate endogenous flora, preserve bioactive compounds and result in a well-accepted beverage.
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