Ellen, Gabriela (2013) Pengaruh rasio pelarut, pengadukan dan waktu ekstraksi terhadap rendemen dan kualitas minyak bekatul = Effect of solvent ratio, agitation and extraction time on yield and rice bran oil quality. Bachelor thesis, Universitas Pelita Harapan.
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Abstract
Rice bran has been known as good source of oil because it consists of
unsaturated fatty acids useful for health. However, in Indonesia it has not been
widely used as edible oils. This research was aimed to study about the effect of
rice bran:hexane ratio, combined with the presence of agitation during
maceration time towards yield and physicochemical properties of rice bran oil.
This research also observed the effect of antioxidant (TBHQ and vitamin E)
added in oil towards physicochemical properties of rice bran oil during storage,
and observed the consumer acceptance on fried product using rice bran oil
compared to palm oil. Rice bran was extracted under maceration with three
different ratios of bran:hexane (1:3, 1:4, and 1:5 w/v), without or with agitation
for 24 and 48 hours. Statistical analysis of yield, physical properties (color and
density), and chemical properties (moisture content, free fatty acid/FFA and
peroxide value/PV) were conducted for the obtained crude rice bran oil (CRBO).
Maceration using 1:5 (weight/volume) with agitation for 24 hours produced
CRBO with the highest yield (18.35 %). The storage result for refined rice bran
oil (RRBO) showed that antioxidant (especially TBHQ) was able to inhibit the
increase of free fatty acids volume as well as peroxide value, and also
discoloration and moisture content during storage. Organoleptic test noted no
significant difference between sausages fried with RRBO compare to that with
commercial palm oil.
Item Type: | Thesis (Bachelor) |
---|---|
Creators: | Creators NIM Email ORCID Ellen, Gabriela UNSPECIFIED UNSPECIFIED UNSPECIFIED |
Contributors: | Contribution Contributors NIDN/NIDK Email UNSPECIFIED Paramawati, Raffi UNSPECIFIED UNSPECIFIED UNSPECIFIED Handayani, Ratna UNSPECIFIED UNSPECIFIED |
Additional Information: | SK 34-09 ELL p |
Uncontrolled Keywords: | antioxidant ; maceration ; physiochemical properties ; rice bran ; unsaturated fatty acids |
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 07:38 |
Last Modified: | 20 Aug 2021 06:26 |
URI: | http://repository.uph.edu/id/eprint/1319 |