Production of low potassium kale with increased glucosinolate content from vertical farming as a novel dietary option for renal dysfunction patients

Title
Production of low potassium kale with increased glucosinolate content from vertical farming as a novel dietary option for renal dysfunction patients
Authors
이택성노주원유지혜박재억손양주김준호
Keywords
Kale; glucosinolate; low potassium; renal dysfunction; vertical farm
Issue Date
2021-03
Publisher
Food chemistry
Citation
VOL 339, 128092
Abstract
The production of low potassium vegetables arose out of the dietary needs of patients with renal dysfunction. Attempts have been made to reduce potassium content in vegetables and fruits; however, induced potassium deficiency has often resulted in decreased yields. Here, we investigated a new method of producing low potassium kale and present the characteristics of the resulting produce. By substituting potassium nitrate with calcium nitrate in the nutrient solution 2  weeks before harvesting, the potassium content of kale was reduced by 70% without a deterioration in yield and semblance qualities. Despite no relationships being detected between potassium deficiency and anti-oxidative properties, the total glucosinolate content, an indicator of the anti-cancer effect of cruciferous vegetables, was significantly increased by potassium deficiency in kale. This study demonstrates a novel method of producing low potassium kale for patients with renal failure, without a reduction in yield but with beneficial increase in glucosinolates.
URI
http://pubs.kist.re.kr/handle/201004/71867
ISSN
0308-8146
Appears in Collections:
KIST Publication > Article
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