20.500.12556/DKUM-68788 Vsebnost sladkorjev in organskih kislin v socvetjih in jagodah bezga Sugar and Organic Acis Content in Elderberry Flowers and Fruits Namen raziskave je bil določiti vsebnost posameznih in skupnih sladkorjev ter organskih kislin v socvetjih in jagodah nekaterih vrst ter medvrstnih križancev bezga. Koncentracije sladkorjev in organskih kislin v vodnih ekstraktih smo določili s tekočinsko kromatografijo. V socvetjih je prevladovala jabolčna kislina s povprečno vrednostjo 1,49 g/100 g suhe snovi. Genotip z najvišjo vsebnostjo jabolčne kisline v socvetjih je bil križanec (JA × NI) × NI2 (2,42 g/100 g). V jagodah je bila najbolj zastopana citronska kislina (3,86 g/100 g), sledile so jabolčna, šikimska in fumarna s povprečnimi vrednostmi 1,34 g/100 g, 25,57 mg/100 g in 5,45 mg/100 g (suhe snovi). Med genotipi sta glede na najnižje in najvišje vsebnosti citronske kisline v jagodah izstopala (JA × NI) × RAC (0,004 g/100 g) in (JA × NI) × CER (1,35 g/100 g). Povprečna vsebnost glukoze in fruktoze v socvetjih je bila 3,04 g/100 g in 2,36 g/100 g (suhe snovi) in v jagodah 15,35 g/100 g in 6,87 g/100 g (suhe snovi). Najnižjo vsebnost glukoze v bezgovih socvetjih smo določili v genotipu JA × (JA × NI)1 najvišjo v (JA × NI) × (CER × NI). Spermanov korelacijski koeficient ni pokazal značilne korelacijske povezanosti med vsebnostjo kislin in sladkorjev v socvetjih in jagodah. The purpose of this research was to determine the content of individual and total sugars and organic acids in inflorescences and fruits of different elderberry genotypes. The concentrations of sugars and organic acids in the aqueous extracts were determined using liquid chromatography. The dominant acid in the inflorescence extracts was malic acid, with an average value of 1.49 g/100 g of dry weight. The genotype with the highest malic acid content in elder inflorescence extracts was the interspecific hybrid (JA × NI) × NI2 (2.42 g/100 g). The most abundant acid in elderberry fruits was citric acid (3.86 g/100 g), followed by malic, shikimic and fumaric acid, with an average content of 1.34 g/100 g, 25.57 mg/100 g and 5.45 mg/100 g (dry weight) respectively. The lowest content of citric acid was determined in fruit extracts of (JA × NI) × RAC (0.004 g/100 g) and the highest in the genotype (JA × NI) × CER (1.35 g/100g). The average glucose and fructose contents in inflorescence extracts were 3.04 g/100 g and 2.36 g/100 (dry weight) and in fruits extracts 15.35 g/100 g and 6.87 g/100 g (dry weight) respectively. The lowest content of glucose was determined in the genotype JA × (JA × NI)1 and the highest in (JA × NI) × (CER × NI). Spearman’s correlation coefficient did not reveal any significant correlation between the content of total acids or sugars in aqueous extracts of elder inflorescences and fruits. bezeg Sambucus spp. medvrstni križanci socvetja jagode vodni ekstrakti sladkorji kisline elderberry Sambucus spp. elder interspecific hybrids elder inflorescences elder fruits aqueous extracts sugars organic acids true true false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2017-10-18 20:21:46 2017-10-27 13:20:38 2022-08-01 16:18:50 2019-07-11 17:04:40 2017 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 URN:SI:UM:DK:I4DBYG6U MAG_Kokosinek_Valentina_2017.pdf MAG_Kokosinek_Valentina_2017.pdf 1 2807BA17039885A1892ABDA46B1EF28A ca887312b5c3275640f90c76083229f291848da2e154216ec3d798e83e442048 72ae159d-7c0f-11eb-bb7a-00155d0001ca 20.500.12556/dkum/6d87f6b8-e18f-42da-bf1c-bca02dc54d72 https://dk.um.si/Dokument.php?lang=slv&id=119767 Fakulteta za kmetijstvo in biosistemske vede 0 0 0