Malaysian Journal of Analytical Sciences, Vol 28 No 1 (2024): 116 - 126

 

EXTRACTION OF β-KERATIN FROM POULTRY FEATHER WASTE USING SODIUM METABISULFITE AND SODIUM DODECYL SULFATE

 

(Pengekstrakan β-Keratin dari Sisa Bulu Ayam Menggunakan Natrium Metabisulfit dan Natrium Dodesil Sulfat)

 

Soerya Dewi Marliyana*, Theresia Inna Sekar Tungga Dewi, and Triana Kusumaningsih

 

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta 57126

 

*Corresponding author: msoerya@staff.uns.ac.id

 

 

Received: 14 September 2023; Accepted: 18 November 2023; Published:  28 February 2024

 

 

Abstract

Environmental contamination due to the disposal of poultry feather waste requires careful attention and management. As poultry feathers are a rich source of keratin protein, this study aims to determine the most efficient reducing agents for extracting β-keratin from chicken and duck feather waste as well as their optimal concentrations. For this purpose, sodium metabisulfite (Na2S2O5) and sodium dodecyl sulfate (NaC12H25SO4) at different concentrations, namely 0.2 M, 0.5 M, and       1 M, were utilized as the reducing agents. The results showed that the optimal concentration of reducing agents for extracting β-keratin from both chicken and duck feather waste was 0.2 M. Sodium metabisulfite (SMB) was proven to be the most effective reducing agent for chicken feather waste, with a yield of 76.9%. For duck feather waste, on the other hand, the use of sodium dodecyl sulfate (SDS) resulted in β-keratin extraction of 39.8%.

 

Keywords: β-keratin, feather waste, chicken feathers, duck feathers, sodium dodecyl sulfate

 

Abstrak

Pencemaran alam sekitar yang disebabkan oleh sisa bulu unggas memerlukan perhatian dan ditangani secara serius. Bulu unggas dapat dimanfaatkan sebagai salah satu sumber protein keratin. Kajian ini bertujuan untuk menentukan agen penurunan yang paling berkesan dan kepekatan optimum untuk pengekstrakan β-keratin dari sisa bulu unggas (bulu ayam dan bulu itik). Natrium metabisulfit (Na2S2O5) (SMB) dan natrium dodesil sulfat (NaC12H25SO4) (SDS) dengan pelbagai kepekatan 0.2 M, 0.5 M, dan 1 M telah digunakan sebagai agen penurunan. Kepekatan yang berkesan untuk pengekstrakan β-keratin dari sisa bulu ayan dan itik adalah 0.2 M. Agen penurunan yang berkesan untuk mengekstrak β-keratin daripada sisa bulu ayam adalah SMB menghasilkan sebanyak 76.9%.  Manakala penggunaan SDS dalam sisa bulu itik menghasilkan 39.8% β-keratin.

 

Kata kunci: β-keratin, sisa bulu, bulu ayam, bulu itik, natrium dodesil sulfat

 

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