Productivity and quality of juices from different genotypes of ‘Bordô’ grape (Vitis labrusca) in the Vale do Rio do Peixe -SC region

ABSTRACT The present study aimed to evaluate productive characteristics and the physical, chemical and sensory quality of juices elaborated from different genotypes of the ‘Bordô’ cv. produced in the Vale do Rio Peixe-SC region, in 2016/17. The 11 clones evaluated were identified as: G03, G07, G08, G10, G12, G13, G15, G16, G17, G18 and G19. At harvest, fruit production and quality were evaluated. The mean productivity of the 11 tested genotypes was 31.2 t ha-1, with a production of 18.7 kg/plant. Genotypes G13, G16, G19 and G08 showed higher productivity in t ha-1 and kg/plant. G10 had the highest acidity. Genotypes G18 and G19 showed lower color intensity and phenolic compounds. Sensorially, genotypes G19 and G16 received lower scores for color, pleasant aroma and overall impression aspects. The 11 ‘Bordô’ genotypes evaluated showed high productivity and favorable physical, chemical and sensory characteristics for the industrialization of juices in the Vale do Rio do Peixe-SC region, with the exception of the juices of genotypes G18 and G19, which showed little color, something that may end up mischaracterizing the 'Bordô' juices.

摘要
本研究旨在评估2016/2017年度于圣卡塔琳娜州佩谢河谷（Vale do Rio Peixe-SC）产区种植的不同‘Bordô’品种（cv.）基因型酿制的果汁的产量特性及其理化与感官品质。本研究共评估了11个无性系（clone），编号分别为G03、G07、G08、G10、G12、G13、G15、G16、G17、G18及G19。于采收期对果实产量与品质开展了测定。11个供试基因型的平均产量为31.2吨/公顷（t ha⁻¹），单株产量达18.7千克/株。其中G13、G16、G19及G08的单位面积产量与单株产量均较高。G10的总酸度最高。G18与G19的色泽强度与酚类物质（phenolic compounds）含量均较低。感官评价结果显示，G19与G16在色泽、怡人香气及整体印象维度的评分均较低。本研究评估的11个‘Bordô’品种基因型均具备较高的产量水平，且其理化与感官品质均适配佩谢河谷产区的果汁工业化生产需求；但G18与G19酿制的果汁色泽偏浅，这可能会对‘Bordô’果汁的产品特征造成误表征。