Comparison of Growth Patterns and Metabolite Composition of Different Ginseng Cultivars (Yunpoong and K-1) Grown in a Vertical Farm
2023
Ga Oun Lee | Seong-Nam Jang | Min Ju Kim | Du Yong Cho | Kye Man Cho | Ji Hyun Lee | Ki-Ho Son
This study analyzed growth patterns, biological compounds, antioxidant properties, ginsenoside contents, metabolites, and the annual net production of &lsquo:Yunpoong&rsquo: and &lsquo:K-1&rsquo: to find the optimal harvesting time of ginseng sprouts. One-year-old ginseng seedlings were cultivated in a container-type vertical farm under a temperature of 20 °:C, a humidity of 60%, and average light intensity of 46.4 µ:mol m&minus:2 s&minus:1 (16 h photoperiod). Growth patterns at 2, 3, 4, and 5 weeks after transplanting (WAT) differed between cultivars. Regarding biological compounds and antioxidant properties, &lsquo:Yunpoong&rsquo: took 5 WAT (43.59%: 2,2-diphenyl-1-picryl-hydrazine-hydrate radical scavenging activity, 1.47 OD593nm: ferric reducing antioxidant power assay, 78.01%: 2,2&prime:-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radical scavenging activity), and &lsquo:K-1&rsquo: took 4 WAT (0.98 Re mg g&minus:1: total flavonoid contents, 35.93%: DPPH) to show a high content. Two cultivars showed the highest total ginsenoside contents at 5 WAT. Most of the analyzed metabolites had a higher content in &lsquo:Yunpoong&rsquo: than in &lsquo:K-1&rsquo:. In both cultivars, it was confirmed that the longer the growth period (3 &minus: >: 5 WAT), the lower the yield and the annual ginsenoside net production. Therefore, &lsquo:Yunpoong&rsquo: and &lsquo:K-1&rsquo: cultivars should be grown as ginseng sprouts in the vertical farms for approximately 3 WAT and 4 WAT, respectively.
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