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Title:Dinamika nalaganja oksalatov med rastjo kormov tara (colocasia esculenta)
Authors:ID Zavišek, Mojca (Author)
ID Kristl, Janja (Mentor) More about this mentor... New window
ID Ivančič, Anton (Comentor)
Files:.pdf UN_Zavisek_Mojca_2017.pdf (491,10 KB)
MD5: 36582E1BFE4345DA1E6C9D5B1C6A61F8
PID: 20.500.12556/dkum/55136668-3de2-4893-a794-6d70a1ff3344
 
Language:Slovenian
Work type:Bachelor thesis/paper
Organization:FKBV - Faculty of Agriculture and Life Sciences
Abstract:Taro (Colocasia esculenta (L.) Schott) je ena najpomembnejših tropskih gomoljevk. Prilagojen je na toplo in vlažno okolje. Namen diplomske naloge je bil določiti vsebnost vodotopnih in celokupnih oksalatov v kormih nekaterih kultivarjev tara iz Vanuata. Vodotopne oksalate smo ekstrahirali z vodo, za ekstrakcijo celokupnih oksalatov pa smo uporabili 0,2 M HCl. V ekstraktih vzorcev smo koncentracije oksalatov določili s tekočinsko kromatografijo. Najnižjo vrednost 52 mg/100 g pri vodotopnih oksalatih smo izmerili v kormu kultivarja VU 1819, ki je bil pobran v 8. mesecu po sajenju (MPS). Z vidika prehrane je najpomembnejše, da je vsebnost netopnih oksalatov v rastlini čim manjša, saj povzročajo ledvične kamne. V kormu kultivarja VU 396 smo izračunali najnižjo vrednosti netopnih oksalatov, in sicer 7 mg/100 g. Med vegetacijsko dobo se vrednosti oksalatov spreminjajo. Zaradi velikih razlik v vsebnosti oksalatov med kultivarji statističnih razlik med posameznimi meseci izkopavanja kormov ni bilo. Z vidika vsebnosti oksalatov je najprimernejši čas izkopavanja v 8.MPS.
Keywords:taro, Colocasia esculenta, vodotopni oksalati, celokupni oksalati, dolžina vegetacije
Place of publishing:Maribor
Year of publishing:2017
PID:20.500.12556/DKUM-68318 New window
NUK URN:URN:SI:UM:DK:WZDKJCAE
Publication date in DKUM:22.09.2017
Views:1453
Downloads:148
Metadata:XML DC-XML DC-RDF
Categories:FKBV
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Licences

License:CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Licensing start date:16.09.2017

Secondary language

Language:English
Title:Dynamics of oxalate accumulation in developing taro corms (colocasia esculenta)
Abstract:Taro (Colocasia esculenta (L.) Schott) is one of the most important tropical root crops. It is adapted to hot and wet environment. The main objective of the presented study was to determine the water-soluble and total oxalate content in corms of taro cultivars from Vanuatu. Water-soluble and total oxalates were extracted with water and 0,2 M HCl, respectively. In the sample extracts, the concentration of oxalate was determined by liquid chromatography. The lowest content of water-soluble oxalates (52 mg/100 g) was determined in a corm sample of the cultivar VU 1819 harvested 8 month after planting (MAP). From the nutritional point of view, it is important that the levels of insoluble oxalates in plants are low because they can be a cause of kidney stones formation. The lowest insoluble oxalate content was recorded in a corm sample of the cultivar VU 396 (7 mg/100 g). The contents of oxalate changed throughout the vegetation period. No significant differences in the contents of oxalate were observed during the growth period and this was mainly due to the big differences among cultivars. Regarding the oxalate content in corms, it could be recommended that corms should be harvested 8 MAP.
Keywords:taro, Colocasia esculenta, water-soluble oxalates, total oxalates, duration of vegetation period


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