研究将新兴的面部表情分析技术与感官评测相结合,采用方差分析、多元因子分析的数据分析方法,研究消费者对不同含糖量露酒产品品评过程中面部表情情绪变化与产品感官评价、消费者接受度的相关性。结果表明,消费者在品评含糖量高(95 g/L)的样品时,正向情绪喜悦和惊讶表情强度值高于低含糖量样品,这与喜好度问卷结果一致,即含糖量高的产品更受欢迎。多元因子分析结果显示产品的甜味、口感绵柔和谐、果香与消费者接受度紧密相关,这与含糖量高的样品在甜味、果香、口感绵柔和谐的得分较高相符合。因此,将面部表情与产品感官评测相结合的方法能够更有效的对产品的消费者接受度做出评价。研究建立了一种通过面部表情分析技术来评价露酒产品消费者接受度的有效研究方法,为后续深入的研究提供基础。
冯婧
,
皇甫洁
,
董建辉
,
韩英
,
刘荣
,
王成
,
宋涛
,
王丽华
,
张娇娇
,
韩兴林
,
王德良
. 面部表情分析技术在露酒感官及消费者接受度评价的初步研究[J]. 食品与发酵工业, 2022
, 48(6)
: 257
-262
.
DOI: 10.13995/j.cnki.11-1802/ts.027554
Lujiu is a type of traditional Chinese liquor made from distilled liquor or fermented wine, and is blended, flavored or reproduced with additives, edible food materials, and/or medical herbs. The present study focused on consumers’ sensory perception and acceptance of Lujiu. Explicit self-report and implicit method using facial expression analysis were incorporated in this study. Consumers were invited to evaluate three Lujiu samples with different alcohol content and sugar content. They were video recorded during each evaluation session and their facial expressions were analyzed using FaceReader. The evaluation process was divided into four sessions of looking, smelling, tasting and after-tasting. ANOVA and MFA (Multiple Factor Analysis) were used in data analysis. The result showed that consumers gave high positive emotional responses such as happiness and surprise when tasting samples with high sugar content (95 g/L), which was consistent with the results of the preference questionnaire, indicating that products with higher sugar content were more popular. MFA results showed that sweetness, mouthfeel and fruitiness were closely related to acceptance, which was in accordance with the higher scores of the samples with high sugar content in sweetness, fruity aroma, soft and harmonious taste. The incorporation of facial expression and sensory evaluation was proven to be an effective and comprehensive method in measuring consumers’ affective response in Lujiu evaluation. This study established an effective method to evaluate the consumer acceptance of Lujiu through facial expression analysis technology, and provided a basis for further research.
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