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The bioaccessibility of phenolic compounds from pineapple, mango and papaya are not compromised by their dietary fiber but to their amylaceous carbohydrates (1044.23)
Author(s) -
VelderrainRodriguez Gustavo,
GonzálezAguilar Gustavo,
AyalaZavala Jesus,
WallMedrano Abraham,
AstiazaránGarcía Humberto,
RoblesSanchez Rosario,
SáyagoAyerdi Sonia
Publication year - 2014
Publication title -
the faseb journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.709
H-Index - 277
eISSN - 1530-6860
pISSN - 0892-6638
DOI - 10.1096/fasebj.28.1_supplement.1044.23
Subject(s) - chemistry , carica , ananas , food science , mangifera , abts , dpph , proanthocyanidin , dietary fiber , antioxidant , polyphenol , horticulture , traditional medicine , biochemistry , biology , medicine
Physicochemical studies have shown that dietary fiber (DF) interacts with phenolic compounds (PC) present in many fruits. However PC release from DF in simulated gastrointestinal conditions has been scarcely reported. The aim of this study was to compare PC bio accessibility from freeze‐dried pulps of Mango (Mangifera indica cv. Ataulfo; MA), papaya (Carica papaya cv. Maradol; PM) and pineapple (Anana comosus cv. Esmeralda; PE) in an enzymatic digestion model (EDM). Soluble (SDF), insoluble (IDF) and total (TDF) DF and Klason lignin (KL) were assayed in 100g of dry weight (DW). MetOH : Water (80:20 v/v‐ Extractable (EPC) and total (TPC) PC, condensed (CT) and hydrolysable (HT) tannins, total antioxidant capacity (TAC) to reduce DPPH and ABTS radicals and fractions of PC associated (PCADF) to DF (SDF, IDF and TDF) were expressed in 100g fresh weight (FW). PC release from MA, PM and PE was also evaluated in EDM. PE had the highest (p<0.05) content of TDF (6.8g) and IDF (5.0g) but lesser SDF (1.8g) than MA & PM but KL was not detected in any fruit. MA showed a higher content (p蠄0.001) of EPC, HT and TPF (144.3, 130.0 y 274.3 mgEAG, respectively) than PM or PE. TAC of PE and PM was 73.4%/28.2% less than in MA (p蠄0.001) which directly correlate (rs蠅0.95) with EPC, HT and TPF content but inversely with TDF and IDF (rs蠅 0.87) of all three fruits. The lower the TDF and IDF (rs= ‐0.62) or higher TPC and EPC (rs=0.88) content the higher PCADF even when they represented 蠄6.1% TPC of all three fruits. In EDM 58, 47 and 56% of TFC present in MA, PM and PE were released with gastric pepsin and a further 33, 20 and 47% was liberated with α‐amylase which coincided with DPPH‐TAC at both enzymatic stages (rs=0.98 and 0.91, respectively). It is concluded that bio‐accessibility of phenolic compounds from Pineapple, Mango and Papaya are not compromised by their dietary fiber but for their amylaceous carbohydrates. Grant Funding Source : Supported by CONACyT (Investigación Científica Básica 2012, Proyecto 179574)