천도 신품종 '옐로드림'과 다른 복숭아 품종의 과실품질, 영양성분 및 생리활성 비교

동아시아식생활학회지

2025, vol.35, no.2, pp. 146-157 (12 pages)

초록

We conducted a comparative analysis of the peel and flesh of the low-acidity nectarine cultivar ‘Yellow Dream,’ a recently developed peach variety gaining popularity in Korea for its edible peel and ease of consumption, to evaluate its nutritional and functional values. This analysis examined nutritional composition, mineral content, antioxidant activity, and cosmetic benefits such as whitening and anti-wrinkle effects, compared to existing clingstone peach cultivars. ‘Yellow Dream’ has an average fruit weight of 186.5±44.7 g, which is comparable to early-maturing clingstone cultivars such as ‘Chiyomaru’ (yellow flesh) and ‘Yumi’ (white flesh). It consistently achieves a sugar content above 11 °Brix while exhibiting notably low acidity, approximately 0.4%, unlike traditional nectarine varieties known for their pronounced sourness. Compared to the other cultivars, ‘Yellow Dream’ demonstrated significantly higher levels of crude protein and carbohydrates, particularly in its peel, which contained over 1.5 times the crude protein content of ‘Yumi’ and ‘Chiyomaru.’ The peel also exhibited elevated levels of minerals, polyphenols, and flavonoids, along with stronger antioxidant activity as measured by 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) radical scavenging assays. These findings suggest that ‘Yellow Dream,’ with its edible skin, is a rich source of bioactive compounds and nutrients. Its peel demonstrated superior tyrosinase and collagenase inhibitory activities, highlighting its potential as a whitening and anti-wrinkle agent. Notably, its collagenase inhibitory activity in both the peel and flesh was the highest among the tested cultivars, making it a promising raw material for cosmetics and functional health foods for whitening and wrinkle prevention. 

키워드

 ‘Yellow Dream’, nectarine, nutritional composition, and bioactivity