POTENSI PENGGUNAAN FTIR (FOURIER TRANSFORM INFRARED) DALAM PENDUGAAN SIFAT FISIK DAN KIMIA CUKO PEMPEK BERBASIS BELIMBING WULUH (Averrhoa bilimbi)

NISMALADEWI, NISMALADEWI and Saputra, Daniel and Priyanto, Gatot (2021) POTENSI PENGGUNAAN FTIR (FOURIER TRANSFORM INFRARED) DALAM PENDUGAAN SIFAT FISIK DAN KIMIA CUKO PEMPEK BERBASIS BELIMBING WULUH (Averrhoa bilimbi). Undergraduate thesis, Sriwijaya University.

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Abstract

Cuko pempek is a brownish black liquid that has a blend of flavors, namely sour, sweet, savory, spicy. Cuko is made from various compositions of ingredients such as palm sugar, chili, tamarind, garlic and salt with a certain composition. The purpose of this research was to identify and predict the physical and chemical properties of cuko pempek made from bilimbi using FTIR spectroscopy and chemometrics. This research used a factorial randomized design (RAKF) with two treatment factors, namely factor A sugar concentration consisting of shell sugar Lubuk linggau and granulated sugar. Factor B acid concentration consisting of bilimbi juice, tamarind and acetc acid. Parameters observed include physical properties (color and viscosity), chemical (total acid, total dissolved solids and pH). Cuko pempek test with FTIR-ATR instrument type Nicolet Termo iS 10. Analysis of infrared spectrum variables using chemometric methods such as principal component analysis and discriminant analysis. The spectral patterns of infrared spectroscopic data from nine treatments of cuko pempek have almost the same shape and functional groups, but the only difference is the concentration or intensity of the transmittance. Principal component analysis has a cumulative value of 96.90% while discriminant analysis has a variance value of 100%, so discriminant analysis is more effective in classifying cuko pempek data based on bilimbi.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Analisis Komponen Utama, Analisis Diskriminan, Cuko Pempek, FTIR
Subjects: S Agriculture > S Agriculture (General) > S583-587.73 Agricultural chemistry. Agricultural chemicals
S Agriculture > S Agriculture (General) > S671-760.5 Farm machinery and farm engineering
T Technology > TP Chemical technology > TP248.13-248.65 Biotechnology
T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions: 05-Faculty of Agriculture > 41201-Agricultural Engineering (S1)
Depositing User: NISMALADEWI
Date Deposited: 27 Jul 2021 07:22
Last Modified: 27 Jul 2021 07:22
URI: http://repository.unsri.ac.id/id/eprint/50561

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