TY - JOUR
T1 - Dietary fiber chemical structures and physicochemical properties of edible Pouteria glomerata fruits, native from Brazilian Pantanal
AU - do Espirito Santo, Bruna Larissa Spontoni
AU - da Silva, Érica Caroline
AU - Jordão Cândido, Camila
AU - da Silva, Anderson Fernandes
AU - do Nascimento, Valter Aragão
AU - Reis Ballard, Cíntia
AU - Baú Betim Cazarin, Cinthia
AU - Roberto Maróstica Júnior, Mário
AU - Mach Côrtes Cordeiro, Lucimara
AU - Youssef Abboud, Kahlile
AU - Alexandre Carollo, Carlos
AU - Brentan Silva, Denise
AU - dos Santos Freitas, Deisy
AU - Marçal Ravaglia, Luciana
AU - Braz Alcantara, Glaucia
AU - de Cássia Freitas, Karine
AU - dos Santos, Elisvânia Freitas
AU - Aiko Hiane, Priscila
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2020/11
Y1 - 2020/11
N2 - 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.
AB - 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.
KW - Antioxidant capacity
KW - Brazilian fruits
KW - Dietary fiber
KW - Food analysis
KW - Malic acid
KW - Vitamin C
UR - https://www.scopus.com/pages/publications/85089338316
U2 - 10.1016/j.foodres.2020.109576
DO - 10.1016/j.foodres.2020.109576
M3 - Article
C2 - 33233188
AN - SCOPUS:85089338316
SN - 0963-9969
VL - 137
JO - Food Research International
JF - Food Research International
M1 - 109576
ER -