Affiliation:
1. İSTANBUL GELİŞİM ÜNİVERSİTESİ, İSTANBUL GELİŞİM MESLEK YÜKSEKOKULU
2. AKSARAY ÜNİVERSİTESİ
3. İSTANBUL TEKNİK ÜNİVERSİTESİ
Abstract
In this study, changes in angiotensin-I converting enzyme (ACE) inhibitory, α-amylase inhibitory and antioxidant activities, total phenolic content (TPC), total monomeric anthocyanin content (TMAC) of ultrasonic phenolic extracts from pulp and seed of Ziziphus jujuba were investigated during in vitro digestion. Bioaccessible fractions of phenolics in seed and pulp extracts were calculated as 23.24±4.46% and 9.43±0.24%, respectively. Moreover, bioaccessibility for TMAC in seed extracts (147.83±9.20%) was higher than pulp (15.76±3.89%) (P<0.05). A decrease in the antioxidant activity of the extracts occurred after in vitro digestion (P<0.05). The ACE inhibitory activity of undigested extracts from seed (86.04±0.00%) was higher than that of the undigested pulp extract (42.74±8.57%) (P<0.05). The α-amylase inhibitory activity of seed and pulp extracts was determined as 49.18±0.35% and 36.07±5.83%, respectively. The results of the study showed that ACE inhibitory activity and α-amylase inhibitory activity of the polyphenolics from pulp increased after in vitro digestion.
Funder
Aksaray University Scientific Research Projects Agency
Publisher
Association of Food Technology, Turkey
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