Effects of the insoluble fiber derived fromPassiflora edulis seed on plasma and hepatic lipids and fecal output

Abstract

The influence of the insoluble fiber-rich fraction (FRF) prepared from defatted Passiflora edulis seed, a potential fiber source, on plasma and hepatic lipids and fecal output were investigated in hamsters fed a hypercholesterolemic diet containing 5% insoluble FRF. The results showed that the consumption of insoluble FRF diet relative to cellulose diet could effectively (P < 0.05) decrease the levels of serum triglyceride, serum total cholesterol, and liver cholesterol, and increase (P < 0.05) the levels of total lipids, cholesterol, and bile acids in feces. The consumption of insoluble FRF also increased (P < 0.05) the fecal bulk and moisture. The marked cholesterol- and lipid-lowering effects of insoluble FRF might be partly attributed to its ability to enhance the excretion of lipids and bile acids via feces. Our results suggested that insoluble FRF could be a potential hypocholesterolemic ingredient for fiber-rich functional foods, but some further researches in humans may be needed to confirm its benefits.

Effects ofPassiflora edulis(Yellow Passion) on Serum Lipids and Oxidative Stress Status of Wistar Rats

“…Nevertheless, treatment with P. edulis did not significantly modify the concentrations of triglycerides and VLDL-c. Other authors have suggested that the insoluble fiber-rich fraction prepared from P. edulis could potentially be hypocholesterolemic. 15,33 Many population studies have established a link between dietary intake of antioxidants and a reduced risk of chronic diseases. Antioxidant potential is very important because oxidative stress may be increased in many pathologies.…”

“…14 The insoluble fiber fraction derived from P. edulis seeds has effects on plasma and hepatic lipids from hamsters. 15 Passiflora incarnata has anxiolytic effects, and its leaves have antiasthmatic activity. 16 Biochemical parameters and antioxidant defenses (superoxide dismutase [SOD] and glutathione peroxidase [GSH-Px] activities and total glutathione [GSH-t] and thiobarbituric acid-reactive substances [TBARS] concentrations) were affectedwhen male Wistar rats were treated with P. alata.…”

Maracujá: um alimento funcional?

“…Também verificou-se que o farelo desengordurado obtido após a moagem das sementes e extração com hexano apresentou significativo teor proteico e de fibras. Chau & Huang (2005) …”

Dietary Fiber and Availability of Nutrients: A Case Study on Yoghurt as a Food Model

“…Substantial experimental data support that blood cholesterol can be lowered using viscous soluble fibers that produce relatively high viscosity in the intestinal tract [39][40][41]. It is known that viscous soluble and insoluble dietary fibers can bind bile acids and micelle components, such as monoglycerides, free fatty acids, and cholesterol, which decrease the absorption and increase the fecal excretion of these entities [42,43]. For insoluble dietary fibers such as lignin or citric fiber this reducing effect is rather low compared to viscous soluble dietary fibers and is mainly based on direct binding of bile acids.…”