Effect of dietary fiber on the bioaccessibility of phenolic compounds of mango, papaya and pineapple fruits by an in vitro digestion model

Abstract

The presence of dietary fiber (DF) in the food matrix of some tropical fruits plays an important role in the release and absorption of its bioactive compounds, such as phenolic compounds (PCs). The aim of this study was to evaluate the effect of the DF fractions in mango cv. ' Ataulfo' , papaya cv. 'Maradol' and pineapple cv. 'Esmeralda' , on the bioaccessibility of their PCs and antioxidant capacity (ADXC) under an in vitro digestion model. The highest PCs content and ADXC was found in mango (274.30 mg GAE/100 g FW), followed by papaya (212 mg GAE//100 g FW), and pineapple (107.63 mg GAE/100 g FW), respectively. About 50% of the total PCs in all fruits was released at gastric phase, increasing closer to 60% at intestinal phase in mango and pineapple. However, the highest content of PCs associated to DF was found in mango (2.48 mg GAE/100 g FW) compared with papaya DF fractions (0.96 GAE/100 g FW) and pineapple (0.52 GAE/100 g FW). The presence of DF in mango, papaya and pineapple did not represent a major limitation on the bioaccessibility of its PCs according to the in vitro digestion model used in this study.

Mango phenolics increase the serum apolipoprotein A1/B ratio in rats fed high cholesterol and sodium cholate diets

“…These differences in composition are a result of not only differences in the analytical methods used, but also the presence of other non‐digestible polysaccharides (e.g. resistant starch), which is also common in FDM . Nevertheless, similar results have been reported for MF extracted from mango paste, a by‐product of the ‘Ataulfo’ mango juice industry, whereas the MF composition was also reported previously .…”

“…FDM usually contains 26 (45%) and 32 (55%) g kg −1 DW of soluble and insoluble dietary fiber, respectively . In the present study, MF isolated from FDM was predominantly soluble (approximately 69%) made up of arabinose and galactose, whereas its insoluble fraction (approximately 31%) was composed of xylose > arabinose > galactose (Fig.…”

Radical scavenging and anti‐proliferative capacity of three freeze‐dried tropical fruits

“…Although polar phytochemicals from papaya and pineapple have proved their antiproliferative capacity on different cancer cell lines not included in this study (García‐Solís et al ., ; Maisarah et al ., ), the functional value as anticancer fruits seems to rely more in their lipophilic compounds (Nguyen et al ., ; Sancho et al ., ; Gani et al ., ) which were not extracted under the experimental conditions reported here. Another explanation is that the antiproliferative capacity of freeze‐dried fruits evaluated here was only evaluated up to 200 μg mL −1 , because this range covers their plausible daily intake as freeze‐dried fruits (Hall et al ., ; Oyebode et al ., ), a convenient bioaccesibility of phenolic compounds near to 50% if eaten (Velderrain‐Rodríguez et al ., ) and because one of the most common criticisms is the large dose of phytochemicals used in antiproliferative capacity studies (García‐Solís et al ., ). Nevertheless, further studies are needed to evaluate the antiproliferative capacity of these freeze‐dried extracts at a higher concentration or that of their pure extractable phytochemicals (Table ).…”

“…Mango had 2.3 and 2.7 times more total phenolic compounds (9.9 ± 0.8 mg GAE per g DM) than papaya or pineapple, but the later showed 0.2 and 2.8 times more flavonoids (0.45 ± 0.05 mg QE per g)) when compared to mango or papaya. Once again, total phenolic compounds (mango > papaya > pineapple) and flavonoids (pineapple > mango > papaya) content is consistent with our previous reports after adjustments for moisture content (Quirós‐Sauceda et al ., ; Velderrain‐Rodríguez et al ., ). Extractable (free) phenolic compounds show a fast release from their matrices (bioaccesibility) under simulated gastrointestinal conditions; however, flavonoids are more tightly bound to dietary fibres, particularly towards insoluble ones (Quirós‐Sauceda et al ., ); therefore, the total bioaccesibility of phenolic compounds from pineapple (high content of flavonoids/insoluble fibre) is expected to be smaller than that observed for mango or papaya (Velderrain‐Rodríguez et al ., ).…”

“…Maradol (9–10 o Brix, o Hue 88; Gayosso‐García Sancho et al ., ) and pineapple cv. Esmeralda (11–14 o Brix, o Hue 88; Velderrain‐Rodríguez et al ., ) were purchased in the local market. Fruits were examined for integrity, insect contamination and size/colour uniformity (Corral‐Aguayo et al ., ) and sanitised with chlorinated water (200 ppm) for 2 min and dried at room temperature for 1 h (Palafox‐Carlos et al ., ).…”