食品科学 ›› 2016, Vol. 37 ›› Issue (22): 230-236.doi: 10.7506/spkx1002-6630-201622035

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“赤霞珠”葡萄转色后不同成熟度指标的变化

刘 旭1,2,陈 敏1,武 轩1,金小朵1,张振文1,2,*   

  1. 1.西北农林科技大学葡萄酒学院,陕西 杨凌 712100;
    2.陕西省葡萄与葡萄酒工程中心,陕西 杨凌 712100
  • 收稿日期:2016-03-16 出版日期:2016-11-16 发布日期:2017-02-22
  • 通讯作者: 张振文(1960—),男,教授,硕士,研究方向为葡萄与葡萄酒。E-mail:zhangzhw60@nwsuaf.edu.cn
  • 作者简介:刘旭(1980—),男,副教授,博士,研究方向为酿酒葡萄品质调控。E-mail:liuxu@nwsuaf.edu.cn
  • 基金资助:
    国家自然科学基金青年科学基金项目(31401819);陕西省农业攻关项目(2014K01-08-01);国家现代农业(葡萄)产业技术体系建设专项(CARS-30-02A)

Changes in Different Maturity Indices of Cabernet Sauvignon (Vitis vinifera L.) Grape after Veraison

LIU Xu1,2, CHEN Min1, WU Xuan1, JIN Xiaoduo1, ZHANG Zhenwen1,2,*   

  1. 1. College of Enology, Northwest A&F University, Yangling 712100, China;
    2. Shaanxi Engineering Research Center for Viti-Viniculture, Yangling 712100, China
  • Received:2016-03-16 Online:2016-11-16 Published:2017-02-22

摘要: 研究酿酒葡萄转色后不同成熟度指标的动态变化规律。以“赤霞珠”葡萄为试材,分别测定了技术成熟度和总酚成熟度指标,并进行了浆果感官评价。结果表明:转色后果实物理性状参数和糖含量迅速增加,转色后第4周达到最大值,成熟后期略有下降。果实中总花色苷含量逐渐增加,在转色后第6周达到最高,随后有所降低。浆果中可提取花色苷含量持续增加。细胞成熟指数、种子成熟指数和总酚指数总体上逐渐降低。果皮单宁含量变化较小,种子单宁含量在成熟前期显著降低(P<0.05),后期变化较小。不同分子大小聚合色素的含量逐渐增加,转色后第6周时达到最大值。浆果感官评价中各种成熟度的得分逐渐增加,果肉香气成熟度和果皮成熟度得分均在转色后第7周时最高,成熟后期变化较小。

关键词: 酿酒葡萄, 赤霞珠, 成熟度, 评价指标

Abstract: In the present study, the dynamic evolutions of different maturity indices of wine grape were determined after veraison. The technological and phenolic maturity of Cabernet Sauvignon (Vitis vinifera L.) grapes were determined. Berry sensory assessment (BSA) was also carried out to evaluate the grape maturity. The results showed that the physical properties and sugar content of grape berries increased sharply after veraison, reaching the maximum value at 4 weeks after veraison (WAV). Thereafter, these indices decreased slightly during the late ripening stages. Total anthocyanin content increased gradually after veraison, reaching the highest level at 6 WAV, and then decreased slowly. However, extractable anthocyanin content rose continuously during ripening. Cellular maturity index, seed maturity index, and total phenol index decreased steadily during maturation, respectively. The tannin content in skin varied slightly during ripening. The content of seed-derived tannin decreased significantly during the early ripening stages; thereafter, it varied slightly during the late ripening stages. The content of polymeric pigments with different molecular weights increased gradually after veraison, reaching the maximum value at 6 WAV. As for BSA, the scores of grape berries of different maturities increased during ripening, reaching the highest level at 7 WAV for aromatic maturity of pulp and skin, respectively. Only minor changes in berry sensory quality were determined during the late maturation stages.

Key words: wine grape, Cabernet Sauvignon, maturity, evaluation index

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