title: Nutritional composition and antioxidant properties of the sim fruit (Rhodomyrtus tomentosa).
abstract: In this study, detailed chemical properties of sim (Rhodomyrtus tomentosa (Ait.) Hassk.) fruit including nutritional composition, phenolic content and antioxidant capacity were determined for the first time. A 150g serving of sim fruit contained high levels of dietary fibre (69.94-87.43% of Recommended Daily Intake (RDI)), α-tocopherol (38.90-51.87% RDI), manganese (>100% RDI), and copper (44.44% RDI) but low levels of protein (2.63% RDI), lipid (1.59-3.5% RDI), and sugars (5.65% RDI). The predominant fatty acid in the sim fruit sample was linoleic acid (75.36% of total fatty acids). Interestingly, total phenolics (49.21±0.35mg gallic acid equivalent (GAE)/g dry weight (DW)) were particularly high and resulted in a high antioxidant capacity (431.17±14.56μmol Trolox equivalent (TE)/g DW). These results, together with our recent discovery of high amount of piceatannol, a stilbene with potent biological activities, highlight the potential of sim, an under-utilised plant species from South-East Asia, as a new source of health-promoting compounds including dietary fibres, essential fatty acids, and phenolic compounds.
authors.affiliation: Institut des Sciences de la Vie, UCLouvain, Belgium; Faculty of Food Sciences and Technology, Vietnam National University of Agriculture, Viet Nam.
authors.forename: Thi Ngoc Ha
authors.initials: TN
authors.lastname: Lai
authors.affiliation: Centre de Recherche Public-Gabriel Lippmann, Department "Environment and Agro-biotechnologies", Luxembourg. Electronic address: andre@lippmann.lu.
authors.forename: Christelle
authors.initials: C
authors.lastname: André
authors.affiliation: Centre for Agro-food Valorisation of Amazonian Bioactive Compounds (CVACBA), Universidade Federal do Para, Brazil.
authors.forename: Hervé
authors.initials: H
authors.lastname: Rogez
authors.affiliation: Institut des Sciences de la Vie, UCLouvain, Belgium.
authors.forename: Eric
authors.initials: E
authors.lastname: Mignolet
authors.affiliation: Faculty of Food Sciences and Technology, Vietnam National University of Agriculture, Viet Nam.
authors.forename: Thi Bich Thuy
authors.initials: TB
authors.lastname: Nguyen
authors.affiliation: Institut des Sciences de la Vie, UCLouvain, Belgium.
authors.forename: Yvan
authors.initials: Y
authors.lastname: Larondelle
mesh_terms: D000596:Amino Acids / Q000032:analysis; D000975:Antioxidants / Q000494:pharmacology*; D002241:Carbohydrates / Q000032:analysis; D005227:Fatty Acids / Q000032:analysis; D005638:Fruit / Q000737:chemistry; D027822:Myrtaceae / Q000737:chemistry*; D010636:Phenols / Q000032:analysis; D010940:Plant Proteins / Q000032:analysis
chemical_list: D000596:Amino Acids; D000975:Antioxidants; D002241:Carbohydrates; D005227:Fatty Acids; D010636:Phenols; D010940:Plant Proteins
keywords: Antioxidant capacity; Dietary fibre; Nutritional composition; Phenolic compound; Rhodomyrtus tomentosa