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Polysaccharides from by-products of the Wonderful and Laffan pomegranate varieties: New insight into extraction and characterization
- Source :
- Food chemistry. 235
- Publication Year :
- 2016
-
Abstract
- The main crude polysaccharides (CPS), extracted from two widely cultivated pomegranate varieties, Laffan and Wonderful, were studied and characterized. We obtained the highest CPS extraction yield (approximatively 10% w/w on dried matter) by 1h of decoction (ratio 1/40w/v). The predominant polymers (75–80%) of the CPS samples showed a hydrodynamic volume close to 2000kDa by size exclusion chromatography and the exocarp and mesocarp profiles were very similar. The proton spectra (1H NMR), according to sugar composition and gelling ability, confirmed the main polysaccharide fractions were pectin with different acylation and methylation degree. The CPS from Laffan and Wonderful mesocarp showed prebiotic properties in vitro with Lactobacillus and Bifidobacterium strains. The composition of the decoction (12% ellagitannins and 10% of CPS) obtained by a green extraction process of pomegranate by-products, makes it a suitable component of functional food formulations.
- Subjects :
- 0301 basic medicine
food.ingredient
Pectin
Size-exclusion chromatography
Decoction
Polysaccharide
01 natural sciences
Mesocarp Prebiotic activity Pectin Size exclusion chromatography 1H NMR
Analytical Chemistry
03 medical and health sciences
food
Functional food
Size exclusion chromatography
Polysaccharides
Dietary Carbohydrates
Prebiotic activity
Sugar
chemistry.chemical_classification
Lythraceae
Chromatography
010405 organic chemistry
Medicine (all)
Extraction (chemistry)
1H NMR
General Medicine
Hydrolyzable Tannins
0104 chemical sciences
Mesocarp
030104 developmental biology
Prebiotics
chemistry
Pectins
Composition (visual arts)
Food Science
Subjects
Details
- ISSN :
- 18737072
- Volume :
- 235
- Database :
- OpenAIRE
- Journal :
- Food chemistry
- Accession number :
- edsair.doi.dedup.....6acd49284adbdb46af251d7ba1a54575