Related Experiment Video
Updated: Jul 19, 2026
05:55
High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize (Zea mays L.)
Published on: June 16, 2018
Composition, digestibility and application in breadmaking of banana flour
E Juarez-Garcia1, E Agama-Acevedo, S G Sáyago-Ayerdi
1Centro de Desarrollo de Productos Bióticos del IPN. Km 8.5 carr. Yautepec-Jojutla, colonia San Isidro, apartado postal 24 62731, Yautepec, Morelos, México.
Plant Foods for Human Nutrition (Dordrecht, Netherlands)
|October 19, 2006
Summary
Banana flour (BF) from unripe bananas offers a "slow carbohydrate" feature. This ingredient shows potential for bakery products due to its high resistant starch content and lower predicted glycemic index.
Area of Science:
- Food Science
- Nutritional Biochemistry
Background:
- Unripe banana flour (BF) is rich in starch and dietary fiber.
- Understanding its carbohydrate profile is crucial for food applications.
Purpose of the Study:
- To characterize unripe banana flour.
- To evaluate its impact on bread's nutritional composition and starch digestion characteristics.
Main Methods:
- Banana flour was produced from unripe bananas (Musa paradisiacal L.).
- Experimental bread was formulated using BF and analyzed for chemical composition, available starch (AS), resistant starch (RS), and in vitro starch digestion.
- Predicted glycemic index (GI) was calculated using the HI method.
Main Results:
- BF composition: 73.36% total starch, 14.52% dietary fiber, with 56.29% AS and 17.50% RS.
- BF bread exhibited higher protein, total starch, and lipid content compared to control bread.
- BF bread demonstrated significantly higher RS and indigestible fraction.
- Predicted GI for BF bread (65.08%) was substantially lower than control bread (81.88%), indicating slow carbohydrate release.
Conclusions:
- Banana flour is a valuable ingredient for developing bakery products with slowly digestible carbohydrates.
- BF incorporation enhances resistant starch content and lowers the predicted glycemic index of bread.
Related Concept Videos
00:57Carbohydrate Digestion
Carbohydrate digestion and metabolism break down simple and complex carbohydrates from food into saccharides (i.e., sugars) for the body to use as energy. Carbohydrate digestion starts in the mouth during mastication, or chewing. The masticated carbohydrates remain intact in the stomach. Digestion resumes in the duodenum of the small intestine, where pancreatic alpha-amylase and brush border enzymes of the microvilli convert complex carbohydrates to monosaccharides. Finally, the monosaccharides...
01:29Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
01:02Protein Digestion
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
01:30Mechanical and Chemical Digestion in the Small Intestine
The small intestine plays a crucial role in our digestive system, performing both mechanical and chemical digestion.
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating absorption...
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating absorption...
01:34Introduction to Carbohydrates
Carbohydrates, proteins, and fats are the primary macronutrients in the human diet. However, carbohydrates are the most favored source of energy in the body. They can be found in a wide variety of foods, including whole grains, fruit, and vegetables, in various forms, such as sugars, starch, and dietary fiber. Based on their structure, carbohydrates are classified into three main classes— monosaccharides, disaccharides, and polysaccharides. The body's cells can only utilize simple...
01:27Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...