首页|Storage temperature of tiger nuts (Cyperus esculentus L) affects enzyme activity, proximate composition and properties of lactic acid fermented tiger nut milk derived thereof

Storage temperature of tiger nuts (Cyperus esculentus L) affects enzyme activity, proximate composition and properties of lactic acid fermented tiger nut milk derived thereof

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The impact of storage temperature on tiger nut's (Cyperus esculentus L.) enzyme activity, proximate composition, and on the fermentation kinetics and sensory properties of lactic fermented tiger nut milk was investigated. Storage temperature significantly affected the protein, fat, fiber, ash and carbohydrate content of tiger nuts. Refrigeration of tiger nuts resulted in higher activities of a-amylase and lipase, whilst ambient or elevated storage showed higher sugar content of tiger nuts. Fermentation of tiger nut milk that was prepared from ambient-stored tiger nuts showed an increased rate of pH reduction and, hence, a significantly lower fermentation time. Fermented tiger nut milk from freshly harvested tiger nuts was more frequently described as grassy and raw. Storage of tiger nuts at ambient or elevated temperature led to lactic fermented tiger nut milk with sweet and sour attributes, and can be significant for improving the sensory quality.

Tiger nut milkStorage temperatureNutrientsFermentation kineticsSensory quality

Kizzie-Hayford, Nazir、Dabie, Kwabena、Kyei-Asante, Baffour、Ampofo-Asiama, Jerry、Zahn, Susann、Jaros, Doris、Rohm, Harald

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Univ Cape Coast, Sch Biol Sci, Dept Biochem, Cape Coast, Ghana

Tech Univ Dresden, Chair Food Engn, D-01069 Dresden, Germany

2021

LWT-Food Science & Technology

LWT-Food Science & Technology

ISSN:0023-6438
年,卷(期):2021.137
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