Effect of osmotic dehydration in fructose, sucrose and fructooligosaccharide solutions on the content of saccharides in plums and apples and their energy value
Klewicki, Robert; Uczciwek, Malgorzata (2008)
Klewicki, Robert
Uczciwek, Malgorzata
Julkaisusarja
Agricultural and Food Science
Volyymi
17
Numero
4
Sivut
367-375
MTT Agrifood Research Finland The Scientific Agricultural Society of Finland
2008
Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe2015090311200
http://urn.fi/URN:NBN:fi-fe2015090311200
Tiivistelmä
Plums (Najbolia and Stanley) and apples (Idared) were subjected to osmotic dehydration in 50% solutions of fructose, sucrose and fructooligosaccharides (FOS) at 22, 40 and 60 °C for 24 hours. The content of fructooligosaccharides, sucrose and monosaccharides in dried material was determined. Plums osmosed in fructose contained from 22.3% w/w to 29.6%w/w of this saccharide depending on the process temperature. The content of sucrose in plums and apples varied from 18.6% w/w to 30.4% w/w after using sucrose as osmotic agent. Material processed at 40 °C was characterised by the highest content of FOS: 22.6 24.7% w/w in plums (nystose as osmotic agent) and 13.7% w/w in apples (FOS preparation as osmotic agent). The partial replacement of sucrose and monosaccharides by fructooligosaccharides reduced the energy value of carbohydrates in dried material by 12 37% depending on the process conditions.