Acid Water
used to extend Flower Life
Biosci Biotechnol Biochem. 2003 AprP67(4):790<6.
Harada
K, Yasui K.
Department of Research and Development, Hokkaido
Electric Power Co., Inc., 2<1 Tsuishikari, Ebetsu, Hokkaido 067<0033,
Japan. kharada@h1.hotcn.ne.jp
Electrolyzed anode water (EAW) markedly extended the vase life of cut
carnation flowers.
Therefore, a flower<senescence hormone involving
ethylene decomposition by EAW with potassium chloride as an electrolyte was
investigated. Ethylene was added externally to EAW, and the reaction between
ethylen and the available chlorine in EAW was examined.
EAW had a low pH value (2.5), a high concentration of
dissolved oxygen, and extremely high redox potential (19.2 mg/l and 1323 mV,
respectively) when available chlorine was at a concentration of about
620 microns. The addition of ethylene to EAW
led to ethylene decomposition, and an equimolar amount of ethylene
chlorohydrine with available chlorine was produced. The ethylene chlorohydrine
production was greatly affected by the pH value (pH 2.5, 5.0 and 10.0 were
tested), and was faster in an acidic solution. Ethylene chlorohydrine was not
produced after ethylene had been added to EAW at pH 2.6 when available chlorine
was absent, but was produced after potassium hypochlorite had been added to
such EAW. The effect of the pH value of EAW on the vase life of cut carnations
was compatible with the decomposition rate of ethylene in EAW of the same pH
value. These results suggest that the effect of Electrolyzed Anode Water on the
vase life of cut carnations was due to the decomposition of ethylene to
ethylene chlorohydrine by chlorine from chlorine compounds.
PMID: 12784619 [PubMed < indexed for
MEDLINE]
The following information is sourced
from various peer reviewed literature as well as various Internet sites. This
information is for educational purposes only and is not ment to cure or treat
any disease or illness. Consult your doctor for specialised medical advice.
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