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Publication
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| Title of Article |
Development of prediction models for pH and total acidty of plaa-som using reflectance near infrared spectroscopy |
| Date of Acceptance |
20 April 2018 |
| Journal |
| Title of Journal |
Veridian E-Journal Science and Technology Silpakorn University |
| Standard |
TCI |
| Institute of Journal |
Slipakorn university |
| ISBN/ISSN |
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| Volume |
5 |
| Issue |
2 |
| Month |
มีนาคม-เมษายน |
| Year of Publication |
2018 |
| Page |
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| Abstract |
For the development of pH and total acidity (TA) prediction models, plaa-som samples (N=188) were randomly drawn from production processes with a wide range of fermentation times and recipes. The samples were divided into 2 groups for calibration (N=141) and validation (N=47). The prediction models of both pH and TA values were developed using partial least squares (PLS) regression with Savitzky-Golay and N-point smoothing pretreatment methods. The best calibration models for pH and TA had R2 (0.89, 0.72), SEC (0.16, 0.50), and R2max (1.0), respectively. Hence, both pH and TA calibration models gave a reasonable fit and were able to estimate pH and TA values in the validation step. The prediction capability of the pH model showed a good correlation (R2=0.89) with a standard error of prediction (SEP) and bias of 0.19 and 0.30, respectively, while the prediction capability for the TA model showed only a moderate correlation (R2=0.72), SEP (0.50), and bias (0.32), respectively. Although the TA model displayed a lower correlation value for prediction, pH and TA models were still able to give reasonable predictions for all tested plaa-som samples. Thus the two models developed in this study have revealed potential applications for large scale plaa-som manufacture since they can predict two important acid parameters that directly correlate with sourness of the product. |
| Keyword |
Near infrared spectroscopy (NIRS), plaa-som, acid parameter, prediction model |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ได้รับการตอบรับให้ตีพิมพ์ |
| Level of Publication |
ชาติ |
| citation |
true |
| Part of thesis |
true |
| Attach file |
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| Citation |
0
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Journal Publication
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