# Synthesis of feather concentrate from broiler feather waste using different chemical hydrolysis process and effect on its properties
> Said M.

URL kanonis: https://discover.unhas.ac.id/publications/pub_scopus_85054720391
Jurnal / Konferensi: Online Journal of Biological Sciences
Tahun terbit: 2018
DOI: https://doi.org/10.3844/ojbsci.2018.270.276
ISSN: 16084217
Kuartil SJR: Q3
Citations: 3

## Authors
- Said M.

## Abstract
Feather waste, a resultant of livestock industry, has annually increased, but its existence has not been optimally utilized. Production of feather concentrate (Fc) is regarded a beneficial application to minimze the waste. The objective of the study was to evaluate the use of NaOH and HCl as a hydrolyzing agent in Fc preparation. The results showed that microstructural changes occurred in filament molecules in keratin protein as exhibited in T 0 and T 1 treatments. Keratin molecules underwent denaturation and degradation, resulting in molecular changes of their structure. After hydrolysis reaction, in-vitro protein digestibility was increased and the highest digestibility value was achieved at T 1 treatment (21.76%). The treatments showed no significant effects on Fc yield compared to the control, with exception of T 3 treatment. Yield could indicate the preparation efficiency, in which the value seemed to decrease a result of denaturation. The relative protein content was not different from the control (T 0 ) especially on the T 1 and T 2 treatments showed no significant effects on relative protein content compared to control T 0 . The highest pH of product (9.76) was attributed to T 1 treatment using NaOH, while the lowest pH was found at HCl. Different types of hydrolysis process showed significant effects (p<0.05) on in-vitro digestibility of protein, yield and protein content. Application of NaOH (T 1 ) is the best treatment compared to T 2 , T 3 and T 0 .

## Keywords
- Feather
- Hydrolysis
- Chemistry
- Broiler
- Keratin
- Yield (engineering)
- Food science
- Feather meal
- In vitro
- Denaturation (fissile materials)
- Biochemistry
- Nuclear chemistry
- Biology
- Materials science
- Paleontology
- Fish <Actinopterygii>
- Ecology
- Metallurgy
- Fishery
- Fish meal

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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