Characterization of novel intermediate food products from Spanish date palm (Phoenix dactylifera L., cv. Confitera) co-products for industrial use.
Journal: 2014/September - Food Chemistry
ISSN: 0308-8146
Abstract:
The nutritive, physicochemical and technological characteristics of several intermediate food products (IFPs) from Spanish Confitera fresh date co-products were investigated. Three IFPs were obtained, two from unblanched dates in different ripening stages (Khalal and Rutab), and a third one from blanched Khalal fruits. The IFPs were rich in dietary fibre (13-16%, dry matter), phenolics (0.56-4.26g GAE/100g dry matter) and sugars (55-82%, dry matter), with glucose and fructose as the predominant sugars. Malic acid was the major organic acid, and potassium was the main mineral. Blanching Khalal dates aided to prevent browning in the IFP, but also the thermal treatment modified the sugars profile. The results indicated that both maturity stages yield IFPs with potential in the food industry; and according to their sugar and phenolic content they could be suitable for the elaboration of new ingredients with different industrial applications. In addition, it would be recommendable blanching unripe fruits.
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