By-products of tropical fruits as sources of bioactive molecules: Sicana odorifera (vell.) Naudin epicarp case study.
2021
Аутори:
Albuquerque, BiancaInês Dias, Maria
Pereira, Carla
Petrović, Jovana
Soković, Marina
P.P. Oliveira, M. Beatriz
C.F.C. Ferreira, Isabel
Barros, Lillian
Остала ауторства
Câmara, José S.Pereira, Jorge A. M.
Gouveia, Rosa Perestrelo
Тип документа:
Конференцијски прилог (Објављена верзија)
,
© 2021 Universidade da Madeira, Centro de Química da Madeira
Метаподаци
Приказ свих података о документуАпстракт:
Tropical fruits are widely appreciated for their sweet taste and generally known for their rich
composition in bioactive compounds. However, the processing of this type of fruits can generate a large
amount of non-edible and non-tradable by-products, consisting mainly in peels and seeds. These by products have already been described as having a greater amount of bioactive compounds than the
edible parts; this fact has been increasing the interest of the scientific community as also of several
industrial fields for the application of these by-products. 1
In this context, the rigid non-edible epicarp
of Sicana odorifera (vell.) Naudin, a purple-black tropical fruit from Brazil, 2 was evaluated for the
anthocyanin and non-anthocyanin phenolic composition by High-Performance Liquid Chromatography
coupled to a diode-array detector and a mass spectrometer functioning by electrospray ionization
(HPLC-DAD/ESI-MS). The bioactive potential was assessed thought several in vitro assays: the
antioxidant activity was determined by thiobarbituric acid reactive substances assay (TBARS) and by the
oxidative hemolysis inhibition assay (OxHLIA) and the antimicrobial activity was tested in four bacteria
and four fungi strains using the microdilution method.
S. odorifera epicarp hydroethanolic extract presented four phenolic compounds, namely two O glycosylated quercetin and kaempherol derivatives and two O-glycosylated anthocyanins, being the
latest group the most abundant one with a total amount of 24±1 mg of anthocyanins/g of dry epicarp.
Concerning its bioactive potential, S. odorifera hydroethanolic extract revealed considerable antioxidant
activity (EC50 values of 48.2±0.5 and 27±1 µg/mL for TBARS and OxHLIA assays, respectively) and
antimicrobial action against all bacteria and fungi strains evaluated (minimal inhibitory concentrations
(MICs) ≤ 2.2 mg/mL).
The results obtained allow to classify this tropical fruit epicarp as a potential source of bioactive
compounds with great market value, since they can be applied in several industrial sectors, including
the food and pharmaceutical industries.
Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200007 (Универзитет у Београду, Институт за биолошка истраживања 'Синиша Станковић') (RS-MESTD-inst-2020-200007)
У:
- Câmara JS, Pereira JAM, Gouveia RP, editors. XV Encontro de Química dos Alimentos; 2021 Sep 5-8; Madeira, Portugal. Universidade da Madeira, Centro de Química da Madeira; 2021. p. 81.