ORAC/kcal比值可确定果汁、花蜜和果汁饮料的营养和功能特性。

PubMed ID
发表日期 2014年Sep月

原始出处 国际食品科学与营养杂志
International journal of food sciences and nutrition
作者 Ninfali  Paolino  Chiarabini  Andrea  Angelino  Donato 

文献标题 ORAC/kcal比值可确定果汁、花蜜和果汁饮料的营养和功能特性。
The ORAC/kcal ratio qualifies nutritional and functional properties of fruit juices, nectars, and fruit drinks.

文献摘要

水果饮料是抗氧化剂的来源,但其含糖量在肥胖的流行中起着重要作用。在这项研究中,我们考虑了在意大利消费的32种水果饮料(13种果汁、11种花蜜和8种水果饮料),分析了它们的热量摄入、总酚(TP)、抗坏血酸和抗氧化能力(氧自由基吸收能力(ORAC)法)。结果表明,糖含量在5.5%~19%之间,几乎完全提供了热量摄入。以ORAC/kcal比值作为衡量水果饮料抗氧化性能的指标。含有浆果、红橙和枸杞的果汁表现最好,还有浆果或梨汁以及用玫瑰果或茶提取物制成的果汁饮料。TP提供了95%的抗氧化能力,与ORAC值呈显著的线性相关。结果表明,ORAC/kcal比值是评价水果饮料质量的一个合适参数。


Fruit beverages are source of antioxidants, but their sugar content plays an important role in the epidemic of obesity. In this study, we considered 32 fruit beverages consumed in Italy (13 fruit juices, 11 nectars, and 8 fruit drinks), which were analyzed for caloric intake, total phenols (TP), ascorbic acid, and antioxidant capacity (oxygen radical absorbance capacity (ORAC) method). Results showed that the caloric intake was almost completely provided by the sugar content, ranging from 5.5 to 19%. The ORAC/kcal ratio was taken as an indicator of the antioxidant performance of fruit beverages. Fruit juices containing berries, red orange, and goji showed the best performances, together with berries or pears nectars and fruit drinks made with rose hips or tea extracts. The 95% of antioxidant capacity was provided by TP, which showed a significant linear correlation with the net ORAC values. Overall, the results indicate that the ORAC/kcal ratio is a suitable parameter to rank the quality of fruit beverages.


获取全文 10.3109/09637486.2014.918591