2023 Fiscal Year Final Research Report
Development of a taste evaluation estimation method for Japanese agricultural products using overseas taste judging and a multisensory instrumental analysis system
| Project/Area Number |
19K06309
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Review Section |
Basic Section 41040:Agricultural environmental engineering and agricultural information engineering-related
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| Research Institution | Utsunomiya University |
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Principal Investigator |
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| Project Period (FY) |
2019-04-01 – 2024-03-31
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| Keywords | イチゴ / 味覚審査 / 官能評価 / 呈味成分 / 揮発性成分 / 味覚推定モデル |
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| Outline of Final Research Achievements |
Due to the new corona infection and the invasion of Ukraine, the international taste assessment was abandoned after 2020.A taste assessment and taste composition and multisensorial instrumental analysis data for strawberry and 100% fruit juice prior to 2019 were used to develop a taste evaluation estimation method. The screening items sweetness was positively correlated with Brix, fructose and sugar, while acidity was positively correlated with malic acid. A taste estimation model with a coefficient of determination of 0.96 or higher was developed for sweetness, with a high relationship with three taste sensors and with all seven sensors for acidity. In olfactory analysis, volatile component peaks with high correlation to sensory scores were extracted, fingerprints were developed to express the aroma characteristics of each strawberry variety, and an estimation model was developed for the judging item, aroma, with a coefficient of determination of 0.6.
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| Free Research Field |
ポストハーベスト
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| Academic Significance and Societal Importance of the Research Achievements |
本研究は、日本産イチゴを対象に海外第三者味覚審査機関に依頼してその味覚データを得、出品した試料と同じ来歴の試料について輸送前後の品質データおよび官能データを得て、味覚審査を推定する味覚推定方法の構築と推定モデルの作成およびその推定精度の把握を計画した。味覚審査事態は新型コロナのため実施できなかったが、過去の審査データおよび海外輸送を想定した貯蔵試験の結果を用い、味覚審査を想定したモデルの作成を行った。モデルの検証は十分でないが、日本産イチゴのイメージや情報が無い地域への輸出展開を想定する際の現地での反応を推定する方法として社会的意義があると考える。
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