Journal
FOOD CHEMISTRY
Volume 338, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.128142
Keywords
Kaki; Phenolic acids; In vitro digestion; Glycaemic index; Gallic acid
Funding
- UMH-Spain
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Adding persimmon flour can significantly improve the polyphenol profile of spaghetti, with an increase of around 2 to 3 times at 3% and 6% concentrations, respectively. The effects of cooking and digestion processes were found to impact the free polyphenol content more than the bound polyphenols. Additionally, spaghetti enriched with 3% persimmon flour showed a reduction in starch digestion kinetics, while 6% enriched spaghetti increased it.
The aim was to study the in vitro starch digestibility, the free and bound polyphenol profile and their bioaccessibility and antioxidant activity during in vitro gastrointestinal digestion of durum wheat semolina spaghetti added with two types of persimmon flour concentrates (Rojo Brillante flour and Triumph flour) at two concentrations (3 and 6%). Results obtained showed that persimmon flour improves the polyphenol profile of spaghetti by addition gallic acid and coumaric acid-o-hexoside, and increasing 2-fold and around 3-fold its content in spaghetti with 3% and 6% persimmon flours, respectively. Cooked process and digestion affected more to free polyphenol content than bound. Furthermore, 3% persimmon flour enriched spaghetti reduce kinetic of starch digestion, while 6% enriched spaghetti increased it. In conclusion, persimmon flours (Rojo Brillante and Triumph) at low concentrations could be used to develop spaghetti with more polyphenol content and less starch digestibility than traditional spaghetti.
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