Matches in SemOpenAlex for { <https://semopenalex.org/work/W3208009159> ?p ?o ?g. }
Showing items 1 to 56 of
56
with 100 items per page.
- W3208009159 endingPage "489" @default.
- W3208009159 startingPage "479" @default.
- W3208009159 abstract "Codot coffee from Tanggamus, Lampung is one of Indonesian specialty coffee with a very limited production. In this research, an authentication study for the Codot ground roasted coffee was conducted using UV-vis spectroscopy and chemometrics. A total of 330 samples of pure and adulterated Codot coffee was prepared. The adulterated Codot coffee samples were intentionally created by adding a regular coffee (non-Codot coffee) into pure Codot coffee samples with three levels of adulterations: low (10-20%), medium (30-40%), and high level (50-60%). All samples were 0,29 mm in particle size. The extraction procedure was performed with hot distilled water (98°C). The spectral data of coffee samples were acquired using a benchtop UV-visible spectrometer in the range of 190-1100 nm using a transmittance mode. The result showed that the pure and adulterated samples could be discriminated along PC1 and PC2 axis. The classification model was developed using LDA with 90,91% of accuracy could be obtained. The LDA model was used to classify the new samples and resulted in a sensitivity (SEN) of 100%, specificity (SPEC) of 76,67%, precision (PREC) of 78,13%, and accuracy (ACC) of 87,27% could be obtained. Using PLS regression, a PLS model was developed to quantify the percentages of Codot coffee adulteration and resulted in high of coefficient of determination both in calibration and validation (R2kal = 0,99 and R2val = 0,98). These results showed that UV-vis spectroscopy and chemometrics are suitable for authentication of Codot specialty coffee with RMSEP = 2,68% and RPD in prediction of 6,49.
 
 Keywords: authentication, LDA, PCA, PLS regression, UV-vis spectroscopy" @default.
- W3208009159 created "2021-11-08" @default.
- W3208009159 creator A5010976551 @default.
- W3208009159 creator A5069055151 @default.
- W3208009159 creator A5088295646 @default.
- W3208009159 date "2021-10-27" @default.
- W3208009159 modified "2023-09-27" @default.
- W3208009159 title "Penggunaan UV-Vis Spektroskopi dan Kemometrika untuk Uji Keaslian Kopi Codot Lampung" @default.
- W3208009159 doi "https://doi.org/10.18343/jipi.26.4.479" @default.
- W3208009159 hasPublicationYear "2021" @default.
- W3208009159 type Work @default.
- W3208009159 sameAs 3208009159 @default.
- W3208009159 citedByCount "0" @default.
- W3208009159 crossrefType "journal-article" @default.
- W3208009159 hasAuthorship W3208009159A5010976551 @default.
- W3208009159 hasAuthorship W3208009159A5069055151 @default.
- W3208009159 hasAuthorship W3208009159A5088295646 @default.
- W3208009159 hasBestOaLocation W32080091591 @default.
- W3208009159 hasConcept C144027150 @default.
- W3208009159 hasConcept C151304367 @default.
- W3208009159 hasConcept C185592680 @default.
- W3208009159 hasConcept C2910939217 @default.
- W3208009159 hasConcept C31903555 @default.
- W3208009159 hasConcept C33923547 @default.
- W3208009159 hasConcept C43617362 @default.
- W3208009159 hasConcept C86803240 @default.
- W3208009159 hasConceptScore W3208009159C144027150 @default.
- W3208009159 hasConceptScore W3208009159C151304367 @default.
- W3208009159 hasConceptScore W3208009159C185592680 @default.
- W3208009159 hasConceptScore W3208009159C2910939217 @default.
- W3208009159 hasConceptScore W3208009159C31903555 @default.
- W3208009159 hasConceptScore W3208009159C33923547 @default.
- W3208009159 hasConceptScore W3208009159C43617362 @default.
- W3208009159 hasConceptScore W3208009159C86803240 @default.
- W3208009159 hasIssue "4" @default.
- W3208009159 hasLocation W32080091591 @default.
- W3208009159 hasLocation W32080091592 @default.
- W3208009159 hasOpenAccess W3208009159 @default.
- W3208009159 hasPrimaryLocation W32080091591 @default.
- W3208009159 hasRelatedWork W1590493531 @default.
- W3208009159 hasRelatedWork W2018500329 @default.
- W3208009159 hasRelatedWork W2155935429 @default.
- W3208009159 hasRelatedWork W2166255798 @default.
- W3208009159 hasRelatedWork W2494176655 @default.
- W3208009159 hasRelatedWork W2558861951 @default.
- W3208009159 hasRelatedWork W2808506934 @default.
- W3208009159 hasRelatedWork W2902032419 @default.
- W3208009159 hasRelatedWork W3007197850 @default.
- W3208009159 hasRelatedWork W4213349306 @default.
- W3208009159 hasVolume "26" @default.
- W3208009159 isParatext "false" @default.
- W3208009159 isRetracted "false" @default.
- W3208009159 magId "3208009159" @default.
- W3208009159 workType "article" @default.