Recognition of Apple Freshness Based on Fisher Discriminant Analysis
Taking the top five apples sold on Taobao (Tianshui Huaniu, Aksu Tangxin, Luochuan Red Fuji, Cream Fuji and Huang Marshal) as the test objects, store at 20 ℃ and 55% relative humidity, on the 0th, 5th, 10th, 15th, 20th and 25th days of the storage period to determine its water content, hardness, col...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
The editorial department of Science and Technology of Food Industry
2023-02-01
|
| Series: | Shipin gongye ke-ji |
| Subjects: | |
| Online Access: | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022050023 |
| _version_ | 1811169262849490944 |
|---|---|
| author | Haijun SHEN Tanglei ZHANG Zhenxing XU Ting YU Zhongwen CAO |
| author_facet | Haijun SHEN Tanglei ZHANG Zhenxing XU Ting YU Zhongwen CAO |
| author_sort | Haijun SHEN |
| collection | DOAJ |
| description | Taking the top five apples sold on Taobao (Tianshui Huaniu, Aksu Tangxin, Luochuan Red Fuji, Cream Fuji and Huang Marshal) as the test objects, store at 20 ℃ and 55% relative humidity, on the 0th, 5th, 10th, 15th, 20th and 25th days of the storage period to determine its water content, hardness, color difference, soluble solid content (SSC) and titratable acid, and the sensory evaluation, cluster analysis and Fisher discrimination were carried out for five kinds of apples. Result showed that, the freshness of apples was divided into fresh, sub-fresh, acceptable and spoiled by sensory evaluation and cluster analysis. Two discriminant functions of apples during storage were obtained by Fisher discriminant analysis. The total coefficient of variation of function 1 was 93.90% (P=0.000), the overall coefficient of variation of function 2 was 6.10% (P=0.003), and both functions had discriminant significance (P<0.05). The samples were divided into test set and training set, the recognition rate of training set was 96.25%, and the recognition rate of test set was 92.5%. The results showed that the Fisher discriminant analysis model established with the physical and chemical indicators selected in this paper as the discriminant factors could effectively identify the freshness of apples. |
| first_indexed | 2024-04-10T16:39:26Z |
| format | Article |
| id | doaj.art-d927b1ad1bec4f07841e8333af0ea202 |
| institution | Directory Open Access Journal |
| issn | 1002-0306 |
| language | zho |
| last_indexed | 2024-04-10T16:39:26Z |
| publishDate | 2023-02-01 |
| publisher | The editorial department of Science and Technology of Food Industry |
| record_format | Article |
| series | Shipin gongye ke-ji |
| spelling | doaj.art-d927b1ad1bec4f07841e8333af0ea2022023-02-08T08:00:16ZzhoThe editorial department of Science and Technology of Food IndustryShipin gongye ke-ji1002-03062023-02-0144436136810.13386/j.issn1002-0306.20220500232022050023-4Recognition of Apple Freshness Based on Fisher Discriminant AnalysisHaijun SHEN0Tanglei ZHANG1Zhenxing XU2Ting YU3Zhongwen CAO4Yangzhou Tourism and Business School, Jiangsu Union Technical Institute, Yangzhou 225001, ChinaSchool of Tourism and Cuisine, Yangzhou University, Yangzhou 225127, ChinaYangzhou Tourism and Business School, Jiangsu Union Technical Institute, Yangzhou 225001, ChinaYangzhou Tourism and Business School, Jiangsu Union Technical Institute, Yangzhou 225001, ChinaSchool of Tourism and Cuisine, Yangzhou University, Yangzhou 225127, ChinaTaking the top five apples sold on Taobao (Tianshui Huaniu, Aksu Tangxin, Luochuan Red Fuji, Cream Fuji and Huang Marshal) as the test objects, store at 20 ℃ and 55% relative humidity, on the 0th, 5th, 10th, 15th, 20th and 25th days of the storage period to determine its water content, hardness, color difference, soluble solid content (SSC) and titratable acid, and the sensory evaluation, cluster analysis and Fisher discrimination were carried out for five kinds of apples. Result showed that, the freshness of apples was divided into fresh, sub-fresh, acceptable and spoiled by sensory evaluation and cluster analysis. Two discriminant functions of apples during storage were obtained by Fisher discriminant analysis. The total coefficient of variation of function 1 was 93.90% (P=0.000), the overall coefficient of variation of function 2 was 6.10% (P=0.003), and both functions had discriminant significance (P<0.05). The samples were divided into test set and training set, the recognition rate of training set was 96.25%, and the recognition rate of test set was 92.5%. The results showed that the Fisher discriminant analysis model established with the physical and chemical indicators selected in this paper as the discriminant factors could effectively identify the freshness of apples.http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022050023fisher discriminant analysiscluster analysisapplefreshness |
| spellingShingle | Haijun SHEN Tanglei ZHANG Zhenxing XU Ting YU Zhongwen CAO Recognition of Apple Freshness Based on Fisher Discriminant Analysis Shipin gongye ke-ji fisher discriminant analysis cluster analysis apple freshness |
| title | Recognition of Apple Freshness Based on Fisher Discriminant Analysis |
| title_full | Recognition of Apple Freshness Based on Fisher Discriminant Analysis |
| title_fullStr | Recognition of Apple Freshness Based on Fisher Discriminant Analysis |
| title_full_unstemmed | Recognition of Apple Freshness Based on Fisher Discriminant Analysis |
| title_short | Recognition of Apple Freshness Based on Fisher Discriminant Analysis |
| title_sort | recognition of apple freshness based on fisher discriminant analysis |
| topic | fisher discriminant analysis cluster analysis apple freshness |
| url | http://www.spgykj.com/cn/article/doi/10.13386/j.issn1002-0306.2022050023 |
| work_keys_str_mv | AT haijunshen recognitionofapplefreshnessbasedonfisherdiscriminantanalysis AT tangleizhang recognitionofapplefreshnessbasedonfisherdiscriminantanalysis AT zhenxingxu recognitionofapplefreshnessbasedonfisherdiscriminantanalysis AT tingyu recognitionofapplefreshnessbasedonfisherdiscriminantanalysis AT zhongwencao recognitionofapplefreshnessbasedonfisherdiscriminantanalysis |