Accéder au contenu
MilliporeSigma
  • Assessment of in-vitro bioaccessibility and antioxidant capacity of phenolic compounds extracts recovered from grapevine bunch stem and cane by-products.

Assessment of in-vitro bioaccessibility and antioxidant capacity of phenolic compounds extracts recovered from grapevine bunch stem and cane by-products.

Food chemistry (2021-01-26)
Susana Ferreyra, Carolina Torres-Palazzolo, Rubén Bottini, Alejandra Camargo, Ariel Fontana
RÉSUMÉ

Grapevine woody by-products contain bioactive substances, mainly phenolic compounds (PCs), whose beneficial health effects initially depends on their levels of intake and bioavailability. Therefore, in-vitro simulated gastrointestinal digestion (GID; oral, gastric and intestinal phases) was performed to evaluate the bioaccessibility and antioxidant capacity (AC) of PCs extracts recovered from grapevine bunch stem and cane from Malbec grape cultivar. The total PCs in cane and bunch stem extracts were 74 and 20% bioaccessible, respectively. Syringic acid, cinnamic acid, ε-viniferin, naringenin and myricetin were highly bioaccessible, noticeably ε-viniferin in cane extract with 137%. The high bioaccessibility observed, particularly for compounds at high concentration such as ε-viniferin, will help to better understand the bioactive potential of these by-products. In this sense, bunch stems and canes can be considered as new and sustainable sources of bioactive substances for applications as functional ingredients or nutraceuticals in food and pharmaceutical industries.

MATÉRIAUX
Référence du produit
Marque
Description du produit

Sigma-Aldrich
Acide (±)-6-hydroxy-2,5,7,8-tétraméthylchromane-2-carboxylique, 97%
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
Pepsine from porcine gastric mucosa, powder, ≥250 units/mg solid
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
Pancréatine from porcine pancreas, 8 × USP specifications
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
p-Coumaric acid, ≥98.0% (HPLC)
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
(−)-Epigallocatechin gallate, ≥95%
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
Kaempferol, ≥90% (HPLC), powder
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
Naringin, ≥95% (HPLC)
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
Syringic acid, ≥95% (HPLC)
Référence
Conditionnement
Disponibilité
Prix
Quantité
Sigma-Aldrich
Caftaric acid, ≥97.0%
Référence
Conditionnement
Disponibilité
Prix
Quantité
Millipore
Bile salts, suitable for microbiology
Référence
Conditionnement
Disponibilité
Prix
Quantité
Astilbin, phyproof® Reference Substance
Référence
Conditionnement
Disponibilité
Prix
Quantité