Low Potassium Content Vegetables Research For Chronic Kidney Disease Patients in Japan

Talukder, Md. Raihan; Asaduzzaman, Md.; Ueno, Makoto; Kawaguchi, Mikiko; Yano, Shozo; Ban, Takuya; Tanaka, Hideyuki; Asao, Toshiki

doi:10.17140/npoj-2-111

Cited by 6 publications

(5 citation statements)

References 40 publications

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“…Using this method, low-K edible parts have been achieved in leafy greens such as spinach, leaf lettuce, Chinese lettuce, komatsuna, and mesclun [ 60 , 61 ], as well as in fruit vegetables including tomatoes, melons, and strawberries [ 59 , 60 , 61 , 62 , 63 ]. It has also been reported that consumption of low-K-containing melons suppresses the increase in serum K concentration in dialysis patients before and after eating [ 64 ]. However, low-K vegetables cannot be cultivated in ordinary outdoor soil because it is necessary to exclude the effect of K contained in soil, which requires a plant factory that can control the cultivation environment, such as hydroponics.…”

Section: Vegetables With Low K Contentmentioning

confidence: 99%

Potassium Metabolism and Management in Patients with CKD

Yamada

Inaba²

2021

Nutrients

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Potassium (K), the main cation inside cells, plays roles in maintaining cellular osmolarity and acid–base equilibrium, as well as nerve stimulation transmission, and regulation of cardiac and muscle functions. It has also recently been shown that K has an antihypertensive effect by promoting sodium excretion, while it is also attracting attention as an important component that can suppress hypertension associated with excessive sodium intake. Since most ingested K is excreted through the kidneys, decreased renal function is a major factor in increased serum levels, and target values for its intake according to the degree of renal dysfunction have been established. In older individuals with impaired renal function, not only hyperkalemia but also hypokalemia due to anorexia, K loss by dialysis, and effects of various drugs are likely to develop. Thus, it is necessary to pay attention to K management tailored to individual conditions. Since abnormalities in K metabolism can also cause lethal arrhythmia or sudden cardiac death, it is extremely important to monitor patients with a high risk of hyper- or hypokalemia and attempt to provide early and appropriate intervention.

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Section: Vegetables With Low K Contentmentioning

confidence: 99%

Potassium Metabolism and Management in Patients with CKD

Yamada

Inaba²

2021

Nutrients

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“… Results from a questionnaire regarding low-potassium melon in 76 dialysis patients (Adopted from Talukder et al, 2016 ). …”

Section: Resultsmentioning

confidence: 99%

Production of Low-Potassium Content Melon Through Hydroponic Nutrient Management Using Perlite Substrate

et al. 2018

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Chronic kidney disease patients are restricted to foods with high potassium content but our daily diets including melon are rich in potassium. Therefore, we investigated the production of low-potassium melon through hydroponic nutrient management in soilless culture using perlite substrate during autumn season of 2012, 2014 and spring season of 2016. In the first study, melon plants were supplied with 50% standard ‘Enshi’ nutrient solution until first 2 weeks of culture. In 3rd and 4th week, amount of applied potassium was 50, 75, 100, and 125% of required potassium nitrate for each plant per week (based on our previous study). It was found that, melon plants grown with 50% of its required potassium nitrate produced fruits with about 53% low-potassium compared to control. In the following study, four cultivars viz. Panna, Miyabi shunjuukei, Miyabi akifuyu412, and Miyabi soushun banshun309 were evaluated for their relative suitability of low-potassium melon production. Results showed insignificant difference in fruit potassium content among the cultivars used. Source of potassium fertilizer as potassium nitrate and potassium sulfate and their restriction (from 1 or 2 weeks after anthesis) were also studied. There were no influences on fruit potassium content and yield due to sources of potassium fertilizer and restriction timings. In our previous studies, it was evident that potassium can be translocated from leaves to fruits at maturity when it was supplied nutrient without potassium. Thus, we also studied total number of leaves per plant (23, 24, 25, 26, and 27 leaves per plant). It was evident that fruit potassium, yield, and quality were not influenced significantly due to differences in number of leaves per plant. These studies showed that restriction of potassium nitrate in the culture solution from anthesis to harvest could produce melon fruits with low-potassium (>20%) content compared to potassium content of greenhouse grown melon (340 mg/100 g FW). Quality testing and clinical validation of low-potassium melon also showed positive responses compared to greenhouse grown melon.

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“…The main purpose of the second experiment was to provide subjects with impaired kidney function an alternative food product (K-reduced microgreens) to limit K intake. Similarly to the first experiment, the agronomic trial was conducted in a commercial greenhouse to verify how the extensively documented experimental protocols from other studies 7,8,[33][34][35] can be readily applied in a commercial greenhouse context.…”

Section: Methodsmentioning

confidence: 99%

Soilless cultivation systems to produce tailored microgreens for specific nutritional needs

D'Imperio,

Bonelli,

Mininni

et al. 2023

J Sci Food Agric

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BACKGROUNDThe awareness of the importance of following dietary recommendations that meet specific biological requirements related to an individual's health status has significantly increased interest in personalized nutrition. The aim of this research was to test agronomic protocols based on soilless cultivation for providing consumers with new dietary sources of iodine (I), as well as alternative vegetable products to limit dietary potassium (K) intake; proposed cultivation techniques were evaluated according to their suitability to obtain such products without compromising agronomic performance.RESULTSTwo independent experiments, focused on I and K respectively, were conducted in a commercial greenhouse specializing in soilless production. Four different species were cultivated using three distinct concentrations of I (0, 1.5 and 3 mg L−1) and K (0, 60 and 120 mg L−1). Microgreens grown in I‐rich nutrient solution accumulate more I, and the increase is dose‐dependent. Compared to unbiofortified microgreens, the treatments with 1.5 and 3 mg L−1 of I resulted in 4.5 and 14 times higher I levels, respectively. Swiss chard has the highest levels of K (14 096 mg kg−1 of FW), followed by rocket, pea and radish. In radish, rocket and Swiss chard, a total reduction of K content in the nutrient solution (0 mg L−1) resulted in an average reduction of 45% in K content.CONCLUSIONIt is possible to produce I‐biofortified microgreens to address I deficiency, and K‐reduced microgreens for chronic kidney disease‐affected people. Species selection is crucial to customize nutritional profiles according to specific dietary requirements due to substantial mineral content variations across different species. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.

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Low Potassium Content Vegetables Research For Chronic Kidney Disease Patients in Japan

Cited by 6 publications

References 40 publications

Potassium Metabolism and Management in Patients with CKD

Potassium Metabolism and Management in Patients with CKD

Production of Low-Potassium Content Melon Through Hydroponic Nutrient Management Using Perlite Substrate

Soilless cultivation systems to produce tailored microgreens for specific nutritional needs

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