a72f2f84856af2577f6595e1cc286db1 foods-13-01957.pdf 36596752a811fbbf7e0bbb229d7b239d0ac78ef9 foods-13-01957.pdf aab26566d302e6203874d788445771675ff3b58c5946c1a31d320203745b2cac foods-13-01957.pdf Title: Low Effectiveness of Mid-Infrared Spectroscopy Prediction Models of Mediterranean Italian Buffalo Bulk Milk Coagulation Traits Subject: This study evaluated the potential use of mid-infrared spectroscopy to predict milk coagulation traits in bulk milk from Mediterranean Italian buffaloes. A total of 1736 bulk milk samples from 55 farms in central Italy were collected during the official milk quality testing system. The prediction models were developed based on modified partial least-squares regression with 75% of the samples and validated with the remaining samples. All bulk milk samples coagulated between 7.37 and 29.45 min. Average values for milk coagulation traits in the calibration set were 17.71 min, 3.29 min, and 38.83 mm for rennet coagulation time, curd firming time, and curd firmness, respectively. The validation set included samples with similar mean and standard deviation for each trait. The prediction models showed the greatest coefficient of determination of external validation (0.57) and the ratio of prediction to deviation (1.52) for curd firmness. Similar fitting statistics of the prediction models were obtained for rennet coagulation time and curd firming time. In conclusion, the prediction models for all three coagulation traits were below the threshold to consider the prediction models adequate even for rough screening of the samples. Keywords: mid-infrared spectroscopy; bulk buffalo milk; technological properties Author: Alberto Guerra, Carlo Boselli, Tiziana Galli, Letizia Ciofi, GianLuca Fichi, Massimo De Marchi and Carmen L. Manuelian Creator: LaTeX with hyperref Producer: pdfTeX-1.40.25 CreationDate: Fri Jun 21 09:00:50 2024 CEST ModDate: Fri Jun 21 09:01:58 2024 CEST Custom Metadata: no Metadata Stream: no Tagged: no UserProperties: no Suspects: no Form: none JavaScript: no Pages: 8 Encrypted: no Page size: 595.276 x 841.89 pts (A4) Page rot: 0 File size: 366689 bytes Optimized: no PDF version: 1.7 name type encoding emb sub uni object ID ------------------------------------ ----------------- ---------------- --- --- --- --------- QZNTXY+VnURWPalladioL Type 1 Custom yes yes yes 10 0 UIGLQO+URWPalladioL-Bold Type 1 Custom yes yes yes 16 0 AXNXPT+URWPalladioL-Roma Type 1 Custom yes yes yes 22 0 IVWKZR+URWPalladioL-Ital Type 1 Custom yes yes yes 27 0 XBNVAE+TimesNewRomanPS-BoldItalicMT Type 1C WinAnsi yes yes no 43 0 WTAUCZ+CMSY10 Type 1 Builtin yes yes yes 60 0 OVNEXW+EURM10 Type 1 Builtin yes yes yes 65 0 PCADCK+PalatinoLinotype,Bold TrueType WinAnsi yes yes no 86 0 PCADCL+PalatinoLinotype CID TrueType Identity-H yes yes yes 89 0 PCADCM+PalatinoLinotype TrueType WinAnsi yes yes no 95 0 PCADCO+PalatinoLinotype,Italic TrueType WinAnsi yes yes no 98 0 PCADJO+PalatinoLinotype TrueType MacRoman yes yes no 101 0 Jhove (Rel. 1.28.0, 2023-05-18) Date: 2025-01-22 02:41:10 CET RepresentationInformation: foods-13-01957.pdf ReportingModule: PDF-hul, Rel. 1.12.4 (2023-03-16) LastModified: 2025-01-18 23:45:43 CET Size: 366689 Format: PDF Version: 1.7 Status: Well-Formed and valid SignatureMatches: PDF-hul MIMEtype: application/pdf PDFMetadata: Objects: 223 FreeObjects: 1 IncrementalUpdates: 0 DocumentCatalog: PageLayout: SinglePage PageMode: UseNone Outlines: Item: Title: Introduction Destination: section.1 Item: Title: Materials and Methods Destination: section.2 Children: Item: Title: Bulk Milk Sampling and Analysis Destination: subsection.2.1 Item: Title: Chemometric Analysis Destination: subsection.2.2 Item: Title: Results and Discussion Destination: section.3 Children: Item: Title: Descriptive Statistics Destination: subsection.3.1 Item: Title: Prediction Models Performance Destination: subsection.3.2 Item: Title: Conclusions Destination: section.4 Item: Title: References Destination: section.5 Info: Title: Low Effectiveness of Mid-Infrared Spectroscopy Prediction Models of Mediterranean Italian Buffalo Bulk Milk Coagulation Traits Author: Alberto Guerra, Carlo Boselli, Tiziana Galli, Letizia Ciofi, GianLuca Fichi, Massimo De Marchi and Carmen L. Manuelian Subject: This study evaluated the potential use of mid-infrared spectroscopy to predict milk coagulation traits in bulk milk from Mediterranean Italian buffaloes. A total of 1736 bulk milk samples from 55 farms in central Italy were collected during the official milk quality testing system. The prediction models were developed based on modified partial least-squares regression with 75% of the samples and validated with the remaining samples. All bulk milk samples coagulated between 7.37 and 29.45 min. Average values for milk coagulation traits in the calibration set were 17.71 min, 3.29 min, and 38.83 mm for rennet coagulation time, curd firming time, and curd firmness, respectively. The validation set included samples with similar mean and standard deviation for each trait. The prediction models showed the greatest coefficient of determination of external validation (0.57) and the ratio of prediction to deviation (1.52) for curd firmness. Similar fitting statistics of the prediction models were obtained for rennet coagulation time and curd firming time. In conclusion, the prediction models for all three coagulation traits were below the threshold to consider the prediction models adequate even for rough screening of the samples. 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