title: Organic acids, sugars, vitamin C content and some pomological characteristics of eleven hawthorn species (Crataegus spp.) from Turkey.
abstract: BACKGROUND
  The Hawthorn (Crateagus sp.) mostly occurs around the temperate region of the world with a high number of species, producing a fruit with numerous beneficial effects for human health. The aim of the study was to determine organic acid and sugar contents in the fruit of a number of hawthorn species grown in Erzincan province of Turkey.
  
  
  RESULTS
  Citric acid was the predominant organic acid in all hawthorn species and C. pseudoheterophylla had the highest citric acid content (23.688 g/100 g). There were not statistically significant differences among hawthorn species (except C. atrosanguinea Pojark) in terms of fumaric acid content. C.pontica C.Koch had a higher content of vitamin C (9.418 mg/100 g) compared to other species. Fructose was the predominant sugar component in all species and C. monogyna subsp. monogyna Joiq had the highest fructose content (18.378 g/100 g).
  
  
  CONCLUSIONS
  The high fruit quality of the studied species indicates the importance of this fruit in human nutrition as a natural source. The study revealed that there were differences in terms of fruit characteristics among hawthorn species and thus better quality hawthorn genotypes can be selected within the species. Hence, this study is considered to be a valuable reference for forthcoming studies. The high fruit quality of the studied species indicates the importance of this fruit in human nutrition as a natural source.
authors.forename: Muttalip
authors.initials: M
authors.lastname: Gundogdu
authors.forename: Koray
authors.initials: K
authors.lastname: Ozrenk
authors.forename: Sezai
authors.initials: S
authors.lastname: Ercisli
authors.forename: Tuncay
authors.initials: T
authors.lastname: Kan
authors.forename: Ossama
authors.initials: O
authors.lastname: Kodad
authors.forename: Attila
authors.initials: A
authors.lastname: Hegedus
mesh_terms: D001205:Ascorbic Acid / Q000032:analysis*; D019343:Citric Acid / Q000032:analysis*; D027825:Crataegus / Q000737:chemistry*; D018556:Crops, Agricultural / Q000737:chemistry; D003998:Dicarboxylic Acids / Q000032:analysis; D004040:Dietary Carbohydrates / Q000032:analysis; D005632:Fructose / Q000032:analysis*; D005638:Fruit / Q000737:chemistry*; D005947:Glucose / Q000032:analysis; D009753:Nutritive Value; D010936:Plant Extracts / Q000032:analysis; D013395:Sucrose / Q000032:analysis; D014421:Turkey
chemical_list: D003998:Dicarboxylic Acids; D004040:Dietary Carbohydrates; D010936:Plant Extracts; D019343:Citric Acid; D005632:Fructose; D013395:Sucrose; C007145:crataegus extract; D005947:Glucose; D001205:Ascorbic Acid