Please use this identifier to cite or link to this item:
https://repository.unej.ac.id/xmlui/handle/123456789/126771
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | NURSHABIRA, Salma Luthfiana | - |
dc.date.accessioned | 2025-06-25T06:42:37Z | - |
dc.date.available | 2025-06-25T06:42:37Z | - |
dc.date.issued | 2024-07-31 | - |
dc.identifier.nim | 182210101150 | en_US |
dc.identifier.uri | https://repository.unej.ac.id/xmlui/handle/123456789/126771 | - |
dc.description | Finalisasi oleh Taufik tgl 25 Juni 2025 | en_US |
dc.description.abstract | Water content is one of the chemical laboratory test parameters to determine the quality and storage time of a material. This study aims to determine whether there is a significant difference in determining the water content of milk powder using the NIR spectroscopy and chemometric methods compared to the gravimetric method. NIR spectrum data from the water content of milk powder was processed using the chemometric method. The calibration models used in this research are Partial Least Square (PLS), Principal Component Regression (PCR), and Support Vector Regression (SVR). The PLS calibration model shows the best results with an Rsquare value was 0.9346 and an RMSE value was 0.4392. Apart from that, the results of internal validation using LOOCV obtained an R-square value was 0.935 and external validation using test set data produced an R-square value was 0.9194. The results obtained from the two paired sample t test showed no significant difference between water content measurements using the NIR spectroscopy and gravimetric methods with a significance value was 0.420 (>0.05). | en_US |
dc.description.sponsorship | apt. Lestyo Wulandari, S.Si., M.Farm. Dr. apt. Ayik Rosita P., S.Farm., M.Farm. | en_US |
dc.language.iso | other | en_US |
dc.publisher | Fakultas Farmasi | en_US |
dc.subject | NIR | en_US |
dc.subject | PCR | en_US |
dc.subject | PLS | en_US |
dc.subject | SVR | en_US |
dc.subject | CHEMOMETRIC | en_US |
dc.subject | WATER CONTENT | en_US |
dc.title | Analisis Kadar Air pada Susu Bubuk Kemasan Menggunakan Metode Spektroskopi NIR dan Kemometrik | en_US |
dc.type | Skripsi | en_US |
dc.identifier.prodi | Farmasi | en_US |
dc.identifier.pembimbing1 | apt. Lestyo Wulandari, S.Si., M.Farm. | en_US |
dc.identifier.pembimbing2 | Dr. apt. Ayik Rosita P., S.Farm., M.Farm. | en_US |
dc.identifier.validator | validasi_repo_ratna_Mei 2025 | en_US |
dc.identifier.finalization | Taufik | en_US |
Appears in Collections: | UT-Faculty of Pharmacy |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Salma Luthfiana N_18-150.pdf Until 2029-09-06 | 5.99 MB | Adobe PDF | View/Open Request a copy |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
Admin Tools