The predicted increase of temperature by effect of climatic change (1.5 ℃ to 4.5 ℃), will affect some berry components. Anthocyanins and flavonols concentration are responsible of wine color. The level of anthocya...The predicted increase of temperature by effect of climatic change (1.5 ℃ to 4.5 ℃), will affect some berry components. Anthocyanins and flavonols concentration are responsible of wine color. The level of anthocyanin is affected by light intensity, temperature, sugars, growth regulators and vineyard management. Abscisic acid (ABA) increases the synthesis of anthocyanin in grape. The object of study was to evaluate the effect of different temperature in berries in vitro, of two cultivars combined with ABA treatments. The treatments were control (C, water) and ABA treatment (1,000 ppm) and temperature: 25, 33 and 40 ℃. In Cabemet Sauvignon, 25 and 33 ~C did not affect anthocyanin total concentration but 40 ℃ produced a 30% decrease in anthocyanin. ABA treatment increased anthocyanin vs. C at 25 and 33 ℃, mainly due to glucosylated forms. But ABA + 40 ℃ showed a 44-60% decrease in all anthocyanins forms compounds. Response of Malbec to the highest temperature (40 ℃), at the end of ripening, was different; higher temperature produced only slight decrease of total anthocyanins concentration (decrease of 7%). Combination of temperature + ABA at 20℃ and 33℃ increased anthocyanin. But ABA + 40℃ decreased glucosylated and cumarylated forms of anthocyanin.展开更多
以欧亚种酿酒葡萄‘赤霞珠’为试材,通过高效液气相色谱-质谱联用法研究单干单臂、单干双臂和单干双层双臂3种整形方式对葡萄果皮非花色苷酚类物质的影响,并采用聚类分析和偏最小二乘判别分析(partial least squares-discrimination ana...以欧亚种酿酒葡萄‘赤霞珠’为试材,通过高效液气相色谱-质谱联用法研究单干单臂、单干双臂和单干双层双臂3种整形方式对葡萄果皮非花色苷酚类物质的影响,并采用聚类分析和偏最小二乘判别分析(partial least squares-discrimination analysis,PLS-DA)筛选不同整形方式间单体非花色苷酚的差异组分。结果表明:与单干单臂和单干双层双臂整形相比,单干双臂整形可以提高葡萄果皮中的槲皮素-3-O-葡萄糖醛酸苷、槲皮素-3-O-葡萄糖苷、山柰酚-3-O-半乳糖苷、槲皮素-3-O-鼠李糖苷类黄酮醇物质的含量;单干单臂和单干双臂整形葡萄果皮中杨梅酮-3-O-葡萄糖苷、异鼠李亭-3-O-葡萄糖苷、丁香亭-3-O-葡萄糖苷类黄酮醇类物质和表没食子酸儿茶素、儿茶素类黄烷醇类物质及原儿茶酸类、香草酸酚酸类物质的含量均高于或显著高于单干双层双臂整形,而单干双层双臂整形葡萄果皮中仅原花色素C1的含量较高。聚类分析结果显示,部分单体非花色苷酚类物质受年份的影响较大,且单干单臂和单干双臂整形对非花色苷酚类物质的影响模式类似,而两者与单干双层双臂整形区别较大。PLS-DA结果表明,不同整形方式的葡萄果皮中单体非花色苷酚类物质组分差异较大。槲皮素-3-O-葡萄糖苷、杨梅酮-3-O-葡萄糖苷等黄酮醇类物质是3类整形方式所处理的葡萄果皮的主要差异组分,且对单干双臂整形处理组的贡献值较大,单干双臂整形的葡萄果皮中含有较高的黄酮醇类物质含量。综上,单干双臂整形方式有助于葡萄果皮非花色苷酚类物质的积累,可被应用于陕西关中地区酿酒葡萄的栽培生产中。展开更多
文摘The predicted increase of temperature by effect of climatic change (1.5 ℃ to 4.5 ℃), will affect some berry components. Anthocyanins and flavonols concentration are responsible of wine color. The level of anthocyanin is affected by light intensity, temperature, sugars, growth regulators and vineyard management. Abscisic acid (ABA) increases the synthesis of anthocyanin in grape. The object of study was to evaluate the effect of different temperature in berries in vitro, of two cultivars combined with ABA treatments. The treatments were control (C, water) and ABA treatment (1,000 ppm) and temperature: 25, 33 and 40 ℃. In Cabemet Sauvignon, 25 and 33 ~C did not affect anthocyanin total concentration but 40 ℃ produced a 30% decrease in anthocyanin. ABA treatment increased anthocyanin vs. C at 25 and 33 ℃, mainly due to glucosylated forms. But ABA + 40 ℃ showed a 44-60% decrease in all anthocyanins forms compounds. Response of Malbec to the highest temperature (40 ℃), at the end of ripening, was different; higher temperature produced only slight decrease of total anthocyanins concentration (decrease of 7%). Combination of temperature + ABA at 20℃ and 33℃ increased anthocyanin. But ABA + 40℃ decreased glucosylated and cumarylated forms of anthocyanin.
文摘以欧亚种酿酒葡萄‘赤霞珠’为试材,通过高效液气相色谱-质谱联用法研究单干单臂、单干双臂和单干双层双臂3种整形方式对葡萄果皮非花色苷酚类物质的影响,并采用聚类分析和偏最小二乘判别分析(partial least squares-discrimination analysis,PLS-DA)筛选不同整形方式间单体非花色苷酚的差异组分。结果表明:与单干单臂和单干双层双臂整形相比,单干双臂整形可以提高葡萄果皮中的槲皮素-3-O-葡萄糖醛酸苷、槲皮素-3-O-葡萄糖苷、山柰酚-3-O-半乳糖苷、槲皮素-3-O-鼠李糖苷类黄酮醇物质的含量;单干单臂和单干双臂整形葡萄果皮中杨梅酮-3-O-葡萄糖苷、异鼠李亭-3-O-葡萄糖苷、丁香亭-3-O-葡萄糖苷类黄酮醇类物质和表没食子酸儿茶素、儿茶素类黄烷醇类物质及原儿茶酸类、香草酸酚酸类物质的含量均高于或显著高于单干双层双臂整形,而单干双层双臂整形葡萄果皮中仅原花色素C1的含量较高。聚类分析结果显示,部分单体非花色苷酚类物质受年份的影响较大,且单干单臂和单干双臂整形对非花色苷酚类物质的影响模式类似,而两者与单干双层双臂整形区别较大。PLS-DA结果表明,不同整形方式的葡萄果皮中单体非花色苷酚类物质组分差异较大。槲皮素-3-O-葡萄糖苷、杨梅酮-3-O-葡萄糖苷等黄酮醇类物质是3类整形方式所处理的葡萄果皮的主要差异组分,且对单干双臂整形处理组的贡献值较大,单干双臂整形的葡萄果皮中含有较高的黄酮醇类物质含量。综上,单干双臂整形方式有助于葡萄果皮非花色苷酚类物质的积累,可被应用于陕西关中地区酿酒葡萄的栽培生产中。