Production of low potassium kale with increased glucosinolate content from vertical farming as a novel dietary option for renal dysfunction patients
- Production of low potassium kale with increased glucosinolate content from vertical farming as a novel dietary option for renal dysfunction patients
- 이택성; 노주원; 유지혜; 박재억; 손양주; 김준호
- Kale; glucosinolate; low potassium; renal dysfunction; vertical farm
- Issue Date
- Food chemistry
- VOL 339, 128092
- 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.
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