Adding value to hard date (Phoenix dactylifera L.): Compositional, functional and sensory characteristics of date jam

被引:153
作者
Besbes, Souhail [1 ]
Drira, Lobna [1 ]
Blecker, Christophe [2 ]
Deroanne, Claude [2 ]
Attia, Hamadi [1 ]
机构
[1] Ecole Natl Ingn Sfax, Unite Anal Alimentaires, Sfax 3038, Tunisia
[2] Fac Univ Sci Agron Gembloux, Unite Technol Ind Agroalimentaires, B-5030 Gembloux, Belgium
关键词
Dates; Adding Value; Jam; Chemical composition; Functional characteristics; Sensory quality; DIETARY FIBER; ANTIOXIDANT ACTIVITY; SEED OIL; VARIETIES; FRUIT; MANUFACTURE; PRODUCTS; STORAGE; FOODS;
D O I
10.1016/j.foodchem.2008.05.093
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Second-grade dates (with a hard texture) from three potential Tunisian cultivars (Deglet Nour, Allig and Kentichi) showed the same sugar (similar to 73.30-89.55 g/100 g dry matter), fibre (similar to 7.95-18.83 g/100 g dry matter) and total phenolics (similar to 280.6-681.8 mg of GAE/100 g) content as dates of high quality. Deglet Nour and Kentichi varieties were characterised by a high content of sucrose and low reducing sugar content: contrary to Allig and the majority of other date varieties tested. This work intended to add value to these raw materials by using them in jam production. The corresponding jams were characterised in terms of chemical composition, physical (texture and water retention capacities) and sensory properties. Results showed a significant effect of the date variety on the composition and physical characteristics of date jams. Indeed, Allig jam was richer in reducing sugars and was characterised by its higher firmness and water retention capacity. To test the acceptability of these new products, we compared them with quince jam (the most consumed in Tunisia). Results showed that Allig and Kentichi jams presented a higher overall acceptability. However, quince and Deglet Nour jams did not show any significant differences (P > 0.05). Results from this work revealed essential information that could promote the commercialization of date jam. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:406 / 411
页数:6
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