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Title:PREHRANSKA VREDNOST KULTIVARJEV TARA (Colocasia esculenta)IZ PAPUE NOVE GVINEJE
Authors:ID Lisec, Urška (Author)
ID Kristl, Janja (Mentor) More about this mentor... New window
ID Ivančič, Anton (Comentor)
Files:.pdf RAZ_Lisec_Urska_i2015.pdf (339,79 KB)
MD5: 61A66F01A05EB5299E189CC20C3039D7
 
Language:Slovenian
Work type:Bachelor thesis/paper
Organization:FKBV - Faculty of Agriculture and Life Sciences
Abstract:Taro (Colocasia esculenta (L.) Scott) je tropska gomoljevka/korenovka, ki uspeva na večini tropskih in subtropskih območij. Namen raziskave je bil analizirati vsebnosti pomembnejših hranilnih snovi (mineralov, škroba, surovih proteinov) v 10 reprezentativnih kultivarjih tara iz Papue Nove Gvineje. Po razklopu vzorcev smo v raztopinah določili koncentracije K z AES, Ca, Zn in Mg s FAAS, Mn, Cu in Fe z ETAAS in P z MAS. Za določitev skupnega dušika smo uporabili Kjeldahovo metodo. Škrob smo določili po Megazxme postopku. Med makroelementi je bilo v kormih največ K ('KPOK 35A', 2,28 %) in med mikroelementi Fe ('NT 01', 29,4 µg/kg). Vsebnosti škroba so znašale med 66% ('Lae Yellow') in 79 % ('C5 353' in 'BC 737'), medtem ko so bile vsebnosti surovih proteinov dokaj nizke. Glede na izmerjene vrednosti lahko zaključimo, da so kultivarji v prehrani ljudi pomemben vir škroba in mineralov, še posebno kalija, kalcija, fosforja in magnezija. Prav tako so relativno dober vir Fe, Zn in Cu.
Keywords:mikroelementi / makroelementi / škrob / surovi proteini / kultivarji / kormi
Place of publishing:Maribor
Year of publishing:2015
PID:20.500.12556/DKUM-54749 New window
NUK URN:URN:SI:UM:DK:YT3M6CDL
Publication date in DKUM:28.09.2015
Views:1680
Downloads:131
Metadata:XML RDF-CHPDL DC-XML DC-RDF
Categories:FKBV
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Secondary language

Language:English
Title:Nutritional value of taro (Colocasia esculenta) cultivars from Papua New Guinea
Abstract:Taro (Colocasia esculenta (L) Scott) is an important root crop, grown throughout the tropical and subtropical regions. The aim of the presented research was to determine the content of the most important food nutrients (minerals, starch, crude proteins) in 10 representative cultivars from Papua New Guinea. In the solutions after microwave digestion, the concentrations of K were determined by using ASE. Ca, Zn and Mg concentrations, however, were determined by FAAS. ETAAS was applied for the determinations of Mn, Cu and Fe, and MAS for measurements of P. The Kjeldahl method was applied for the determination of total nitrogen, whereas the total starch was determined by using Magazyme procedure. Potassium was the most abundant mineral (‘KPOK 35A’, 2.28 %). Iron dominated among microelements. The cultivar with the highest Fe content was ‘NT01’ (29.4 µg/kg). The starch contents were high and ranged between 66 % (‘Lae Yellow’) and 79 % (‘C5 353’ and ‘Bc 737’), whereas the levels of crude proteins were rather low. We can conclude that the corms of the sampled taro cultivars can be considered as a good source of starch and minerals, especially potassium, calcium, phosphorus and magnesium in human nutrition. They are also relatively good sources of Fe, Zn, Zn and Cu.
Keywords:microelements / macroelements / starch / crude proteins / cultivars / corms


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