Journal
FOOD CHEMISTRY
Volume 342, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2020.128087
Keywords
Cactus berry; Garambullo; Betalains; Phenolic compounds; Bioactivity; Gastrointestinal digestive stability; Bioaccessibility; INFOGEST (R)
Funding
- Spanish Ministry of Science and Innovation [RTA2015-00044-C02-02]
- [276568]
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Cactus berry is a scarcely studied Mexican wild fruit with bioactive compounds that demonstrate antioxidant, anti-hyperglycemic, and anti-inflammatory activities. The fruit contains a variety of metabolites, with Phyllocactin and Isorhamnetin rhamnosyl-rutinoside being the most abundant. Studies suggest that cactus berry could be a promising candidate for a sustainable healthy diet.
Cactus berry (Myrtillocactus geometrizans) is a scarcely studied Mexican wild fruit. These fruits could contribute to reduce the risk of degenerative chronic diseases due to their bioactive profile. The aim of this work was to study the betalains and phenolic profile in cactus berry, their in vitro biological activities and gastrointestinal digestive stability and bioaccessibility. 43 metabolites were identified by HPLC-DAD-ESI-QTOF (8 betaxanthins, 8 betacyanins, 13 flavonoids, 6 phenolic acids). Phyllocactin and Isorhamnetin rhamnosyl-rutinoside (IG2) were the most abundant metabolites (5876 and 396 mu g/g dw) which were also bioaccessible (16 and 21%, respectively). Pulps showed higher (p < 0.05) antioxidant activity by the Oxygen Radical Absorbance Capacity (27 mM Trolox equivalents). The anti-hyperglycemic activity was highest (p < 0.05) in peel and pulp tissues (85% alpha-glucosidase and 8% alpha-amylase inhibition). An 83% inhibition of hyaluronidase showed high anti-inflammatory activity. Cactus berry fruit should be considered a promising fruit candidate for a sustainable healthy diet.
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