کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4513620 | 1624865 | 2013 | 8 صفحه PDF | دانلود رایگان |
Carob (Ceratonia siliqua L.) kibbles, a by-product of the carob bean gum production, were extracted by decoction and evaluated for its phenolic profile and potential use as an added-value antioxidant-rich product. The effect of decoction time (8–20 min) and temperature (80–100 °C) on the polyphenols content and overall antioxidant capacity expressed as percentage inhibition of the DPPH and ABTS free radicals, was performed using a Doehlert experimental design to assess the antioxidants extraction efficiency. It was observed that temperature had the most significant effect. The best conditions for total polyphenols and tannins extraction were 98.5 °C and 17 min, where ca. 39.5 mg GAE/g kibbles and 25.8 mg GAE/g kibbles on a dry basis were obtained, respectively. Under these conditions, inhibition of DPPH and ABTS radicals were 85% and 90%, respectively, showing the promising use of this biomass as an antioxidant source, which could be used, for example, in functional beverages.
► RSM was used for optimisation of aqueous decoction aiming antioxidants from carob biomass.
► Aqueous decoction provides added-value products from carob biomass within biorefining.
► Experimental design optimised antioxidants extraction from carob kibbles.
► Aqueous decoction of carob kibbles could be used as a dietary source of antioxidants.
► Aqueous decoction functions as biomass pretreatment prior to further processing.
Journal: Industrial Crops and Products - Volume 44, January 2013, Pages 119–126