Dietary fiber chemical structures and physicochemical properties of edible Pouteria glomerata fruits, native from Brazilian Pantanal
| Autor: | Luciana Marçal Ravaglia, Anderson Fernandes da Silva, Kahlile Youssef Abboud, Valter Aragão do Nascimento, Deisy dos Santos Freitas, Cíntia Reis Ballard, Mário Roberto Maróstica Júnior, Bruna Larissa Spontoni do Espirito Santo, Lucimara M.C. Cordeiro, Glaucia Braz Alcantara, Priscila Aiko Hiane, Carlos Alexandre Carollo, Karine de Cássia Freitas, Elisvânia Freitas dos Santos, Denise Brentan Silva, Cinthia Baú Betim Cazarin, Camila Jordão Cândido, Érica Caroline da Silva |
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| Rok vydání: | 2020 |
| Předmět: |
Arabinose
Dietary Fiber Antioxidant 030309 nutrition & dietetics DPPH medicine.medical_treatment Polysaccharide Pouteria 03 medical and health sciences chemistry.chemical_compound Ingredient 0404 agricultural biotechnology Arabinogalactan medicine Humans Food science chemistry.chemical_classification 0303 health sciences 04 agricultural and veterinary sciences 040401 food science chemistry Galactose Fruit Xylans Malic acid Brazil Food Science |
| Zdroj: | Food research international (Ottawa, Ont.). 137 |
| ISSN: | 1873-7145 |
| Popis: | Pouteria glomerata is a native species from the Brazilian Pantanal, whose fruit is edible and still underexploited. The objective of this study was to carried out the chemical, nutritional and antioxidant properties of this tropical fruit, as well as to isolate e characterize the chemical strucutre of their dietary fibers. DPPH and ORAC methods were used to determine the antioxidant capacity. Minerals were quantified using inductively coupled plasma optical emission spectrometry. Soluble and insoluble dietary fiber fractions were obtained by the standard enzymatic–gravimetric method and chemically characterized by monosaccharide composition, gel permeation and NMR spectroscopy. Results showed that P. glomerata fruits presented high antioxidant capacity and high levels of vitamin C, minerals, insoluble dietary fiber, and malic acid. The soluble dietary fiber was mainly composed of uronic acids, arabinose, and galactose, and NMR analysis indicated the presence of highly methylesterified homogalacturonan, arabinan and/or arabinogalactan as pectic polysaccharides. Hemicelluloses present in insoluble dietary fiber fraction were solubilized by alkaline treatment, and characterized as (1 → 4)-β-D-xylan. The results brings new chemical information about this native fruit and may open new opportunities for using it as a potential ingredient for health improvement by human comsumption. |
| Databáze: | OpenAIRE |
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