Search for collections on PNUP Repository

Preservation of oleic acid entrapped in a condensed matrix of high-methoxy pectin with glucose syrup

Paramita, Vilia Darma and Bannikova, Anna and Kasapis, Stefan (2016) Preservation of oleic acid entrapped in a condensed matrix of high-methoxy pectin with glucose syrup. Food Hydrocolloids, 53. pp. 284-292. ISSN 0268-005X

[thumbnail of Cover] Text (Cover)
Cover Food Hydrocolloids.pdf - Other

Download (224kB)
[thumbnail of Paper] Text (Paper)
B12 FH Journal [part].pdf - Published Version

Download (468kB)
[thumbnail of Korespondensi Peer Review] Text (Korespondensi Peer Review)
B12_ Email Korespondensi.pdf - Other

Download (128kB)
[thumbnail of Turnitin] Text (Turnitin)
B12 paper - edit.pdf - Other

Download (1MB)

Abstract

This investigation deals with the diffusional mobility of essential fatty acids in triglyceride form (oleic
acid) from a condensed matrix comprising 3% (w/w) high-methoxy pectin and 81% (w/w) co-solute
(glucose syrup) to absolute ethanol. Work utilises rheological measurements in shear, differential
scanning calorimetry, ESEM, FTIR and WAX diffraction to identify the molecular properties of the
composite system. Results showed that the amorphous carbohydrate matrix underwent vitrification
at �15 �C (mechanical Tg) calculated mathematically using the Williams, Landel and Ferry (WLF) and
modified Arrhenius equations. Diffusion kinetics of the fatty acid (monitored via UV-vis spectroscopy)
was combined with the newly introduced concept of spectroscopic shift factor to demonstrate that,
although the increment of oleic acid mobility appeared to respond to the predicted glass transition
temperature, this is distinct from the structural relaxation of the matrix. Experimental observations were
further treated with the concept of diffusion coefficient to provide an estimate of the transport rate of the
triglyceride as a function of time or temperature of observation within the glass transition region.

Item Type: Article
Subjects: S Agriculture > S Agriculture (General)
T Technology > TP Chemical technology
Divisions: Jurusan Kimia > D4 Teknologi Kimia Industri
Depositing User: Unnamed user with email itcenter@poliupg.ac.id
Date Deposited: 22 Apr 2023 13:27
Last Modified: 22 Apr 2023 13:27
URI: https://repository.poliupg.ac.id/id/eprint/709

Actions (login required)

View Item
View Item