Felicia, Nita (2015) Study of physicochemical qualities of palm-rice bran composite oil during intermittent deep-frying. Bachelor thesis, Universitas Pelita Harapan.
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Abstract
The effect of rice bran oil addition to palm oil in deep frying was
evaluated by comparing its physical and chemical characteristics during four
days of intermittent frying. Regarding the parameter standards of oil
deterioration, including color (lightness and yellowness index), viscosity, free
fatty acid (%FFA) and Totox value, as compared with the control (ratio 100:0,
PO:RBO %v/v), the decline of palm oil composites quality was inhibited by the
presence of rice bran oil. After four days of intermittent frying, 90:10 (%v/v)
palm-rice bran oil composite showed the most stable to polymerization and
hydrolysis deterioration in frying, shown by the lowest yellowness index, viscosity
and FFA value. Moreover, the lightness value of 90:10 (%v/v) palm-rice bran
composite oil had no significant difference during 4 days of frying duration. For
the oxidative deterioration, the palm-rice bran composite oil with the ratio of
90:10 (%v/v) also gave the lowest Totox value. However, for peroxide value
parameter, the control was the most stable over hydroperoxides decomposition. In
addition, 90:10 (%v/v) palm-rice bran composite oil also gave decreasing trend in
terms of oil absorption into fried food.
Item Type: | Thesis (Bachelor) |
---|---|
Creators: | Creators NIM Email ORCID Felicia, Nita NIM03420110003 03420110003 UNSPECIFIED |
Contributors: | Contribution Contributors NIDN/NIDK Email Thesis advisor Gultom, Sisi Patricia L. A. UNSPECIFIED UNSPECIFIED Thesis advisor Halim, Jeremia Manuel NIDN0312118501 UNSPECIFIED |
Additional Information: | SK 34-11 FEL s |
Uncontrolled Keywords: | deterioration ; oil composite ; palm oil ; rice bran oil ; thermal stability |
Subjects: | T Technology > TP Chemical technology > TP368-456 Food processing and manufacture |
Divisions: | University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Food Technology |
Depositing User: | Users 17 not found. |
Date Deposited: | 16 Oct 2018 08:03 |
Last Modified: | 24 Aug 2021 07:36 |
URI: | http://repository.uph.edu/id/eprint/1814 |