‘Quergold’, a New Cultivar of Hybrid Onion with High Quercetin Glycoside Contents

崇人, 室; 大助, 嘉見; 慶太, 杉山

doi:10.2503/hrj.14.305

Cited by 6 publications

(5 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, foods containing high quercetin concentrations are being developed for the purpose of providing a high quercetin dietary intake for humans. For example, some varieties of onion have been bred to contain high levels of quercetin, such as the red onion "Quer-rich" (Muro et al, 2010) and the onion "Quergold" (Muro et al, 2015) bred in Hokkaido. Some varieties of green tea have been bred to provide potentially rich sources of high-quercetin drinks (Monobe et al, 2015).…”

Section: Resultsmentioning

confidence: 99%

Antioxidant Activities and Taste Qualities of Fresh Onions Produced in Minamishimabara City, Nagasaki, Japan

Yuasa

Akao²,

Kawabeta

et al. 2020

FSTR

View full text Add to dashboard Cite

In this study, we investigated the antioxidant activities and taste qualities of fresh onions produced in the Minamishimabara city, Nagasaki, Japan. Samples were 'Super-Up' (SU), a conventional cultivar, and 'Kazusa No. 13' (K13), a new cultivar, and these were compared with 'Shippowase No. 7' (S7), a general-use cultivar. The total oxygen radical absorbance capacity of K13 was higher than that of S7. The 1, 1-diphenyl-2-picrylhydrazyl free radical-scavenging activity and the total quercetin concentration were higher in SU and K13 than in S7. Umami and saltiness values (determined using the Taste Sensing System) and total free amino acid concentrations in SU and K13 were lower than those in S7, with the differences in total free amino acid concentration contributing to the difference in taste responses between the onion cultivars. Total sugar concentration in SU was lower than in S7. These results suggest that the advantages of SU and K13 were in terms of high levels of antioxidant activity and quercetin concentration, rather than in terms of taste or flavor. Thus, onions of cultivars SU and K13 are expected to be new regional brand foods of Nagasaki, targeted at health-conscious consumers.

show abstract

Section: Resultsmentioning

confidence: 99%

Antioxidant Activities and Taste Qualities of Fresh Onions Produced in Minamishimabara City, Nagasaki, Japan

Yuasa

Akao²,

Kawabeta

et al. 2020

FSTR

View full text Add to dashboard Cite

show abstract

“…Their characteristic features are as follows: 'Momiji No. 3', color: yellow, photoperiod: long-day, bulb shape: globe, cultivation area: mainly Honshu, Shikoku, and Kyushu (autumnsown), quercetin content at harvest: normal (Ikeda et al, 2019;Iwata, 1988); 'Quergold', color: yellow, photoperiod: long-day, bulb shape: flat globe, cultivation area: mainly Hokkaido (spring-sown), quercetin content at harvest: high (Muro et al, 2015). Seeds were sown on February 14, 2018 and February 13, 2019 in 288-cell (20 × 20 × 40 mm) plug trays filled with nursery soil (K-200; Yanmar, Osaka, Japan) and 2% fertilizer (Micro Long Total 280-100; Jcam Agri Co., Ltd., Tokyo, Japan).…”

Section: Plant Materials and Cultivation Conditionsmentioning

confidence: 99%

“…For example, Okamoto et al (2006) compared the quercetin content of 105 onion varieties at both harvest and five months after harvest. Based on the findings, various onion varieties with a high quercetin content were then developed (Muro et al, 2010(Muro et al, , 2015. Meanwhile, Oku et al (2018) reported varietal differences in the quercetin content of eight onion varieties in Aomori prefecture, Japan, while Tsukazaki et al (2021) obtained trait data, including quercetin content, from 95 genetically diverse varieties.…”

Section: Introductionmentioning

confidence: 99%

Temporal Changes in Quercetin Accumulation and Composition in Onion (<i>Allium cepa</i> L.) Bulbs and Leaf Blades

et al. 2021

Self Cite

View full text Add to dashboard Cite

Bulb onion (Allium cepa L.) contains several functional components such as quercetin glycosides, a type of flavonoid. The quercetin content of bulb onion has been determined at harvest and storage; however, little is known about the changes in quercetin accumulation during development. In this study, two yellow onion varieties, 'Momiji No. 3' and 'Quergold', which differ in quercetin content at harvest, were grown on lowland soil following spring sowing in 2018 and 2019. Then, the changes in quercetin accumulation and composition in the bulbs and leaf blades from the seedling stage to harvest were evaluated. In both years, quercetin accumulation in the bulbs followed a similar trend, with 'Quergold' tending to have a higher quercetin content than 'Momiji No. 3', except for two weeks following transplanting. Significant differences between the quercetin contents in the two varieties were observed at harvest. The content of quercetin-4'-glucoside (Q-4'-G) was the same or higher than that of quercetin-3,4'-diglucoside (Q-34'-DG) throughout development, except on October 6, 2018, and July 29, 2019, in both varieties. Meanwhile, the quercetin content per bulb increased with bulb formation in both varieties. In contrast, quercetin accumulation in the leaf blades was lower than that in the bulbs throughout development in both years. An increase was observed from July, with accumulation of Q-34'-DG dominating until early July, whereafter accumulation of both Q-34'-DG and Q-4'-G was observed until harvest. Overall, these findings suggest that accumulation of quercetin glucoside content varies dramatically with growth, differing between onion bulbs and leaf blades.

show abstract

“…It is also worth mentioning that red onions with high quercetin-glycoside content have recently attracted the attention of consumers (Muro et al 2015).…”

Section: Usesmentioning

confidence: 99%

“…Over the last three decades, a number of cultivars have been developed and released in Japan. However, there is still enough scope to increase the onion genotypes available commercially, viz., earlier maturing genotypes, genotypes with higher storability, better disease resistance, and milder flavor, genotypes suitable for direct sowing to achieve labor saving and cost reduction, genotypes containing higher amount of health benefit compounds, and so forth (Muro et al 2015;Usuki et al 2019;Ariyanti et al 2018). Japanese breeders indeed developed two early maturing cultivars ('Shutaro' and 'Soujiro') for spring planting, of which the bulbs can be marketed in early August, the off-crop season of major onionproducing areas (Yanagida et al 2012).…”

Section: Consumer Concerns: Food Safety and Qualitymentioning

confidence: 99%

Japanese Bulb Onion: Production, Consumption, and Cultivars

Tsuchiya¹,

Nakamura²,

Mikami³

2021

Journal of Horticultural Research

View full text Add to dashboard Cite

Bulb onion is an ancient vegetable crop that has been cultivated for at least 5,000 years. In Japan, this cultivation has only 150 years of history, but nowadays, it ranks fourth in total production, fourth in cropping acreage, and second in consumption among vegetables grown domestically. Until the 1970s, open-pollinated onion cultivars were predominantly cultivated throughout the country; they were selected mainly from old US cultivars. Over the past three decades, these open-pollinated cultivars have been replaced with F1 hybrid cultivars that offer higher yield, better disease resistance, uniformity at maturity, and high bulb quality. In this review, an attempt is made to characterize the commercial production and consumption of Japanese bulb onion as well as agronomic characteristics of representative cultivars.

show abstract

‘Quergold’, a New Cultivar of Hybrid Onion with High Quercetin Glycoside Contents

Abstract: Onions contain polyphenolic flavonoid compounds, especially quercetin glycosides.

Cited by 6 publications

References 7 publications

Antioxidant Activities and Taste Qualities of Fresh Onions Produced in Minamishimabara City, Nagasaki, Japan

Antioxidant Activities and Taste Qualities of Fresh Onions Produced in Minamishimabara City, Nagasaki, Japan

Temporal Changes in Quercetin Accumulation and Composition in Onion (<i>Allium cepa</i> L.) Bulbs and Leaf Blades

Japanese Bulb Onion: Production, Consumption, and Cultivars

Contact Info

Product

Resources

About