• Food Science and Preservation
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• v.15 no.6
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• pp.804-809
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• 2008

Modified atmosphere packaging (MAP) was assessed in terms of extending the shelf life of Solidago virgaurea spp. gigantea. In June 2005 Solidago virgaurea spp. gigantea were harvested from Ulleung Island, packaged in $30\;{\mu}m$ PP, $30\;{\mu}m$ Antifogging-OPP, $30\;{\mu}m$ LDPE, $18\;{\mu}m$ Macroperforated-HDPE, $60\;{\mu}m$ nylon/PE, or $85\;{\mu}m$ PVC/PE film, then stored at 4, 10 or $20^{\circ}C$ for up to 14 days. The $O_2$ concentration decreased to $9{\sim}10%$ in the PP and A-OPP packaging, to $12{\sim}16%$ in LDPE packaging, and to 2% in nylon/PE and PVC/PE packaging at $10^{\circ}C$. The $CO_2$ concentration increased to 5% at $10^{\circ}C$ in PP, A-OPP and LDPE packaging, but increased consistently in the nylon/PE and PVC/PE packaging. Weight loss was markedly reduced by all MAP films except M-HDPE, and which was enhanced with decreasing storage temperature. The soluble solids and pH were not affected by the packaging material at $4^{\circ}C$ and $10^{\circ}C$, but were affected at $20^{\circ}C$. The highest score for sensory qualities (appearance, color and overall acceptability) was obtained for vegetables stored at $4^{\circ}C$ in PP films. Our results show that MAP using PP films and $4^{\circ}C$ storage can effectively maintain the quality of Solidago virgaurea spp. gigantea.

• The Korean Journal of Mycology
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• v.46 no.3
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• pp.353-358
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• 2018

Solidago virgaurea subsp. gigantea is native to Ulleung-do, island in East Sea, and cultivated as a vegetable in Korea. Rust fungus on this plant was first reported as Coleosporium asterum in 2014. Recent studies on Solidago-Coleosporium association mainly based on North American materials suggested that the Korean isolates of C. asterum on S. virgaurea subsp. gigantea reported in Korea might be placed in the C. solidaginis clade. Accordingly, to confirm this suggestion, three additional Korean samples were morphologically and molecularly studied and identified as C. solidaginis in current species concept. Three specimens on S. altissima (syn. S. canadensis) from China and Japan were previously determined to be phylogenetically differentiated from C. solidaginis, hinting at a cryptic species. Therefore, this is the first confirmed report on the presence of C. solidaginis on Solidago spp. in Asia.

• Food Science and Preservation
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• v.15 no.4
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• pp.576-581
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• 2008

The chemical components of the wild vegetables Solidago virgaurea spp. gigantea, Aster glehni var. hondoensis, and Aruncus dioicus var. kamtschaticus grown on Ulleung island, Korea were investigated. In dried powders of these three wild vegetables, the contents of moisture, crude protein, crude lipid, crude fiber, and crude ash were 3.77-5.72%, 15-29%, 3.50-6.68%, 4.00-6.01%, and 8.70-10.54%, respectively. There were differences in the levels and nature of organic acids in the vegetables; the major organic acids were succinic acid, citric acid, and malonic acid. The major free amino acids in the vegetables were glutamic acid, aspartic acid, arginine, and phenylalanine. Riboflavin contents were 90 mg% in Aruncus dioicus var. kamtschaticus and $2{\sim}3$ mg% in the other vegetables. The thiamin contents were 113 mg% in Aster glehni var. hondoensis, 85 mg% in Aruncus dioicus var. kamtschaticus, and 71 mg% in Solidago virgaurea spp. gigantea. The major fatty acids in the three vegetables were linolenic acid, linoleic acid, and palmitic acid; 60% of total fatty acid was linolenic acid. Catechins were present at 5.37 mg% in Aruncus dioicus var. kamtschaticus, 2.46 mg% in Solidago virgaurea spp. gigantea, 1.29 mg% in Aster glehni var. hondoensis.(-) ECC was detected in only Aruncus dioicus var. kamtschaticus. The contents of Ca, P, and Na in the three vegetables were higher than the contents of other minerals.