Uporaba izvlečka lubja bele jelke (Abies alba Mill.) za pripravo čebelarskih izdelkov

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Language:	Slovenian
Year of publishing:	2012
Source:	Ljubljana
Typology:	2.11 - Undergraduate Thesis
Organization:	UL PEF - Faculty of Education
Publisher:	[N. Martinc]
UDC:	638.1(043.2)
COBISS:	9446729
Views:	1273
Downloads:	304
Average score:	0 (0 votes)
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Secondary language:	English
Secondary title:	Use of silver fir (Abies alba Mill.) bark extract for preparation of beekeeping products
Secondary abstract:	The purpose of our thesis was to gain new honey analogous beekeeping product by feeding the bees with fir bark extracts (Abies alba Mill.) and to assess the suitability of the product as honey in addition to daily human consumption. In this regard, we first had to determine the appropriate concentration of the extract, by testing which concentrations would the bees prefere. After finding out an appropriate concentration, we prepared large quantities of solutions and fed the bee colonies per supply. The first colony was fed with dry extract and the other with liquid extract, the third colony only with sugar solution and all three solutions were supplemented with beetroot juice. The gained product and food were used for further testing with spectrophotometer, where we found that the quantity of beetroot juice and of the extract were less in the product. Similar, trend was demonstrated using the Folin-Ciocalteu's method. We have also carried out sensory analysis of four kinds of honey, including our product. We demostrated that the bark fir extract was present in the product, however we would have to devote some attentions to oxidation of beetroot pigments besides the technolohy of feeding.
Secondary keywords:	food;hrana;
File type:	application/pdf
Type (COBISS):	Undergraduate thesis
Thesis comment:	Univ. Ljubljana, Pedagoška fak., Biotehniška fak., Biologija in gospodinjstvo
Pages:	IX, 43 str.
Type (ePrints):	thesis
Title (ePrints):	Use of extract of bark of silver fir (Abies alba Mill.) for preparing of beekeeping products
Keywords (ePrints):	čebela
Keywords (ePrints, secondary language):	honeybee
Abstract (ePrints):	Namen dela je bil pridobiti nov medu podoben čebelarski proizvod s hranjenje čebel z izvlečkom lubja jelke (Abies alba Mill.) in oceniti primernost proizvoda kot dodatek vsakodnevni človeški prehrani. Da smo prišli do medu podobnega proizvoda, smo najprej morali ugotoviti primerno koncentracijo izvlečka, kar smo naredili tako da smo testni družini na sate postavili posodice z različnimi koncentracijami. Ko smo ugotovili primerne koncentracije smo pripravili večje količine raztopin in čebelje družine krmili na zalogo. Prvi družini smo krmili hrano s suhim izvlečkom, drugi pa s tekočim izvlečkom, tretjo družino smo krmili samo s sladkorno raztopino, vsem trem pa je bil dodan pesin sok. Pridobljeni proizvod in hrano smo uporabili za nadaljnja testiranja s spektrofotometrom, kjer smo ugotovili, da je pesinega soka in posledično izvlečka bilo manj v proizvodu kot v hrani. Podobno smo dokazali tudi s Folin- Ciocalteujevo metodo. Izvedli smo tudi senzorično analizo štirih vrst medu, med katerimi je bil tudi naš proizvod. Dokazali smo, da je bil proizvod prisoten v izdelku, vendar bi poleg tehnologije hranjenja morali nekaj pozornosti nameniti oksidaciji pesnih barvil.
Abstract (ePrints, secondary language):	The purpose of our thesis was to gain new honey analogous beekeeping product by feeding the bees with fir bark extracts (Abies alba Mill.) and to assess the suitability of the product as honey in addition to daily human consumption. In this regard, we first had to determine the appropriate concentration of the extract, by testing which concentrations would the bees prefere. After finding out an appropriate concentration, we prepared large quantities of solutions and fed the bee colonies per supply. The first colony was fed with dry extract and the other with liquid extract, the third colony only with sugar solution and all three solutions were supplemented with beetroot juice. The gained product and food were used for further testing with spectrophotometer, where we found that the quantity of beetroot juice and of the extract were less in the product. Similar, trend was demonstrated using the Folin-Ciocalteu's method. We have also carried out sensory analysis of four kinds of honey, including our product. We demostrated that the bark fir extract was present in the product, however we would have to devote some attentions to oxidation of beetroot pigments besides the technolohy of feeding.
Keywords (ePrints, secondary language):	honeybee
ID:	8310870