During the transit through the gastrointestinal tract, fibre undergoes physical changes not usually included in in vitro digestion studies even though they influence nutrient diffusion and might play a role in gut microbiota growth. The aim of this study was to evaluate how physical fibre properties influence the physical properties of gastrointestinal fluids using a gastrointestinal model (stomach, small intestine, ascending colon, transverse colon, and descending colon) (simgi®). Analysis by rheological and particle size characterisation, microbiota composition and short-chain fatty acid (SCFA) determination allows the achievement of this goal. First, the water-holding capacity (WHC), microstructure, and viscosity of eight different fibres plus agar were tested. Based on the results, potato fibre, hydroxypropyl methylcellulose (HPMC), psyllium fibres, and agar (as a control) were selected for addition to a medium growth (GNMF) that was used to feed the stomach/small intestine and colon compartments in the simgi®. During gastrointestinal digestion, GNMF was collected at 5, 30 and 55 minutes of processing at the gastric stage and after the intestinal stage. Then, samples of GNMF with faecal slurry were collected at 0, 24 and 48 h of colonic fermentation. Results showed fibre-dependence on apparent viscosity. Although psyllium was partially broken down in the stomach (decrease in particle size), it was the most viscous at the colonic stage, opposite to the potato fibre, but both led to the highest total SFCA and acetic acid production profile. On a microbiological level, the most relevant increase of bacterial growth was observed in the faecal Lactobacillus species, especially for HPMC and potato fibre, that were not digested until reaching the colon. Besides fibre fermentability, viscosity also influenced microbial growth, and it is necessary to characterise these changes to understand fibre functionality.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c9fo00485h | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Dietary Patterns Among Canadian Caucasians and Their Association With Chronic Conditions.
J Hum Nutr Diet
February 2025
Department of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Background: Understanding the dietary patterns of populations is crucial in addressing chronic health conditions that are influenced by diet and lifestyle. We aimed to identify the dietary patterns among adult Caucasian Canadians and examine their associations with socioeconomic and sociodemographic factors and chronic health conditions.
Methodology: We used two comprehensive national nutrition surveys: Canadian Community Health Survey (CCHS)2015 and CCHS Cycle 2.
A review of enhancing noodle quality: Fortification with micronutrients and substitution with nutrient-dense alternative.
J Food Sci
January 2025
Department of Nutrition Science, Faculty of Medicine, Universitas Diponegoro, Semarang, Indonesia.
Noodles are usually rich in carbohydrates but lack essential nutrients such as protein, fiber, vitamins, and minerals, potentially causing metabolic problems if consumed in the long term. This review explores strategies to improve the quality of noodles through substitution and fortification. Substitution is replacing the main ingredient with a more nutrient-dense alternative, such as sweet potato starch, which has been shown to improve the nutritional content of noodles, such as fiber and beta carotene.
View Article and Find Full Text PDFVegetable-Enriched Brownies: A Healthier Twist on a Classic Treat.
Nutrients
January 2025
Department of Plant Products Technology and Nutrition Hygiene, Faculty of Food Technology, University of Agriculture in Krakow, 21 Mickiewicz Av., 31-120 Krakow, Poland.
Background/objectives: In response to concerns about high-fat and low-fiber diets, this study modified a traditional brownie recipe by replacing butter with plant-based ingredients, including sweet potatoes, red beans, beetroot, zucchini, pumpkin, lentils, and spinach. The goal was to increase vegetable consumption while identifying the best vegetable fat replacer using sensory and instrumental analyses.
Methods: Chemical analyses were conducted to measure dry matter, protein, fat, ash, and dietary fiber, alongside texture, color, and sensory evaluations.
Formation and Characterization of Mycelium-Potato Protein Hybrid Materials for Application in Meat Analogs or Substitutes.
Foods
December 2024
Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
There is increasing interest in the development of meat analogs due to growing concerns about the environmental, ethical, and health impacts of livestock production and consumption. Among non-meat protein sources, mycoproteins derived from fungal fermentation are emerging as promising meat alternatives because of their natural fibrous structure, high nutritional content, and low environmental impact. However, their poor gelling properties limit their application in creating meat analogs.
View Article and Find Full Text PDFBambara Bean Substitution Improves the Nutritional Content and Increases the Satiety Index of Purple Sweet Potato Bread.
Prev Nutr Food Sci
December 2024
Department of Community Nutrition, Faculty of Human Ecology, IPB University, Bogor 16680, Indonesia.
This study aimed to develop tuber bread from purple sweet potato and bambara beans with high satiety and low glycemic index (GI). Different ratios of purple sweet potato to bambara bean were used: 100:0 (F0), 80:20 (F1), 60:40 (F2), and 40:60 (F3). The satiety index (SI) was determined by assessing the consumption of a 240 kcal isocaloric food and collecting data through a visual analog scale.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!