上海地区葡萄品质评价体系的建立与特征品质指标研究

Development of grape quality evaluation system and identification of key characteristic quality indicators in Shanghai Region

中文关键词:  葡萄品质评价  因子分析  层次分析法  分级标准  特征指标

英文关键词:grape quality evaluation  factor analysis  analytic hierarchy process  grading standard  characteristic indicators

中文摘要:

      目的 基于关键特征品质指标, 构建适用于上海地产葡萄的品质评价体系。方法 通过对4个葡萄品种的57批次样品进行14项感官及内在营养指标的测定分析, 运用因子分析筛选出可溶性固形物、总酸、固酸比、酒石酸、葡萄糖、锌、维生素C和花青素8项核心指标。基于聚类分析和层次分析法(analytic hierarchy process, AHP), 明确了三级分级标准及权重分配, 进而构建综合评分体系。结果 巨玫瑰品种的可溶性固形物、葡萄糖、维生素C、花青素等多项指标含量较高, 平均综合评分为81.6分, 显著优于醉金香(68.4分)、阳光玫瑰(64.4分)和申园(62.8分)。结论 本研究所建立的评价体系具备较高的判别准确性, 能够为上海地产葡萄的品质分级、品种优化以及市场推广提供可靠的科学依据。

英文摘要:

      Objective To construct a quality evaluation system for locally-produced grapes in Shanghai based on the key characteristic quality indicators. Methods By measuring 14 sensory and internal nutritional indicators of 57 batches of samples from 4 grape varieties, factor analysis was employed to screen out 8 core indicators, including soluble solids, total acids, solid-acid ratio, tartaric acid, glucose, zinc, vitamin C, and anthocyanins. Based on cluster analysis and the analytic hierarchy process (AHP), a three-level grading standard and weight distribution were determined, and a comprehensive scoring system was constructed. Results Results showed that the quality indicators of soluble solids, glucose, vitamin C and anthocyanins were relatively high in “Ju Meigui” variety, which had the highest average comprehensive score (81.6 points), and was significantly superior to “Zuijinxiang” (68.4 points), “Yangguang Meigui” (64.4 points), and “Shenyuan” (62.8 points). Conclusion The evaluation system established in this study exhibits high discriminant accuracy and can provide a reliable scientific basis for the quality grading, variety optimization, and market promotion of Shanghai-produced grapes.