Southern University Agriculture Research and Extension Center, Ashford O. Williams Hall, Baton Rouge, LA 70813, USA.
Center for Viticulture and Small Fruit Research, Florida A&M University, 6361 Mahan Drive, Tallahassee, FL 32308, USA.
Molecules. 2019 Mar 11;24(5):981. doi: 10.3390/molecules24050981.
Stilbenoids such as -piceid, -resveratrol, ε-viniferins, and -pterostilbene can differ significantly among grape cultivars and years due to variation in environmental conditions and subsequent stressors encountered during a year. This study evaluated diverse muscadine grape cultivars for their ability to consistently produce four major stilbenoids such as -piceid, -resveratrol, ε-viniferins, and -pterostilbene irrespective of environmental changes that can impact their production. Berries from forty-two muscadine grape cultivars were collected for three years (2013, 2014, and 2015) to measure stilbenoids. Results showed significant differences in the composition of four stilbenoids among the muscadine cultivars. The highest level of stilbenoids was observed in 'Fry Seedless' (270.20 µg/g fresh weight) in each of the three consecutive years tested followed by 'Pride' (46.18 µg/g fresh weight) while 'Doreen' produced the lowest level of stilbenoids (1.73 µg/g fresh weight). Results demonstrated that certain muscadine grape cultivars consistently produced varied levels of the four major stilbenoids year after year. Based on the total content of stilbenoids, the 42 muscadine cultivars studied were grouped into three categories such as High, Medium and Low stilbenoid-containing cultivars. This information will help establish new vineyards with cultivars that are less prone to variations in environmental conditions and can consistently produce stilbenoid-rich muscadine grape berries with enhanced market value to promote consumer health.
芪类物质，如白皮杉醇、白藜芦醇、ε-viniferins 和 pterostilbene，由于环境条件的变化以及当年遇到的后续胁迫因素的不同，在不同的葡萄品种和年份之间可能有很大的差异。本研究评估了多种麝香葡萄品种，以确定它们是否能够持续产生四种主要的芪类物质，如白皮杉醇、白藜芦醇、ε-viniferins 和 pterostilbene，而不受可能影响其生产的环境变化的影响。在三年（2013 年、2014 年和 2015 年）中收集了 42 个麝香葡萄品种的浆果，以测量芪类物质。结果表明，在连续三年的测试中，42 个麝香葡萄品种中四种芪类物质的组成存在显著差异。在 'Fry Seedless'（270.20 µg/g 鲜重）中观察到最高水平的芪类物质，其次是 'Pride'（46.18 µg/g 鲜重），而 'Doreen' 产生的芪类物质水平最低（1.73 µg/g 鲜重）。结果表明，某些麝香葡萄品种能够持续多年产生不同水平的四种主要芪类物质。根据芪类物质的总含量，研究的 42 个麝香葡萄品种被分为高、中、低芪类物质含量三个类别。这些信息将有助于建立新的葡萄园，种植品种不易受环境条件变化的影响，并能持续生产富含芪类物质的麝香葡萄浆果，提高市场价值，促进消费者健康。
