Al, AIK, Mg 및 CuSO4가 압화용 카네이션과 용담의 변색 방지에 미치는 영향

Abstract

In order to study the effects of discoloration prevention of the flowers and leaves of yellow dianthus caryophyllus and gentiana scabra var. buergeri for pressed flowers, the flowers and leaves of yellow dianthus caryophyllus and gentiana scabra var. buergeri for pressed flower were hydrothermally digested in the diluted solution of respectively 5%, 10%, 20%, 30% and 40% of Al, AIK, Mg and CuSO4 solution for thirty seconds, and then dried, and the degrees of discoloration were examined, according to the number of days of ultraviolet ray irradiation. The research result of the effects of Al, AIK, Mg and CuSO4 diluted solution on the discoloration prevention of yellow dianthus caryophyllus petals showed that Al diluted solution was effective for preventing discoloration at the concentration of 30%. The AIK diluted solution of 30% had a little discoloration-preventing effect, compared to the one not processed. The Mg diluted solution of 10-30% had the petals have a small change of L* value, compared to fresh petals, and, in terms of a* value and b* value, 30% or Mg diluted solution was effective for discoloration prevention, showing a small difference from those of fresh flowers. CuSO4 diluted solutions were all effective for discoloration prevention, regardless of their concentration percentages, and the solution of 20% was the most effective in particular. When the effects of Al, AIK, Mg and CuSO4 diluted solutions on the prevention of discoloration of dianthus caryophyllus leaves were examined, Al diluted solution was proven to promote discoloration more than the one not processed. AIK diluted solution showed no significant effects on discoloration prevention, except for 5% of AIK diluted solution. Mg diluted solution showed a higher value of L* when it was processed as 20%, but there was not a big difference from fresh leaves in term of colors. CuSO4 diluted solution was effective for discoloration prevention when it was processed as 40%. The research result of the effects of Al, AIK, Mg and CuSO4 diluted solutions on the prevention of discoloration of gentiana scabra var. buergeri flowers showed that Al solution had no particular effects on discoloration prevention. 20% and 40% of AIK solutions, 5% and 10% solution of Mg solutions displayed just little difference of L*, a* and b* values, and therefore a clear effect on discoloration prevention. CuSO4 solutions had some differences of L*, a* and b* values, according to their concentration degrees, but discoloration prevention effect was not outstanding, on the whole. When the effects of Al, AIK, Mg and CuSO4 diluted solutions on the prevention of discoloration of gentiana scabra var. buergeri leaves were examined, Al solution had some differences of L*, a* and b* values, according to concentration degrees, but there was no general effect on discoloration prevention. AIK solutions of 10% and 20% were effective for discoloration prevention, but Mg solution had no big effect on discoloration prevention. CuSO4 solution of 10% was proven to have a little effect on discoloration prevention. Synthesizing all the results above, when the flowers and leaves of yellow Dianthus caryophyllus and Gentiana scabra var. buergeri for Pressed Flower were hydrothermally digested in the diluted solution of Al, AIK, Mg and CuSO4 solutions for thirty seconds, the effects of discoloration prevention was very different according to the kinds of chemicals and their concentration percentages processed. Therefore, in order to prevent the discoloration of other kinds of materials for pressed flower, Al, AIK, Mg and CuSO4 solutions need to be used after the proper concentration of each material is examined.