Preprint Article Version 1 This version is not peer-reviewed

Antioxidant, Mechanical and Physical Properties of Chicken Skin Gelatin/CMC Film Incorporated with Centella asiatica Extract

Version 1 : Received: 29 April 2018 / Approved: 1 May 2018 / Online: 1 May 2018 (11:10:24 CEST)

How to cite: Mohd Nazmi, N.N.; Mhd Sarbon, N. Antioxidant, Mechanical and Physical Properties of Chicken Skin Gelatin/CMC Film Incorporated with Centella asiatica Extract . Preprints 2018, 2018050006 (doi: 10.20944/preprints201805.0006.v1). Mohd Nazmi, N.N.; Mhd Sarbon, N. Antioxidant, Mechanical and Physical Properties of Chicken Skin Gelatin/CMC Film Incorporated with Centella asiatica Extract . Preprints 2018, 2018050006 (doi: 10.20944/preprints201805.0006.v1).

Abstract

This study aimed to characterize the antioxidant, mechanical and physical properties of chicken skin gelatin/CMC/Centella asiatica blended film. The influence of Centella asiatica at 0.3% and 0.7% on antioxidant activities; mechanical properties and physical properties of chicken skin gelatin/CMC/Centella asiatica film were investigated. Characterization of the blended films with 0.7% Centella asiatica extract shows higher antioxidant activities with a total phenolic content of 0.36 mg/g of GAE, DPPH of 89.26%, and reducing power of 0.80 nm compared to 0.3% Centella asiatica extract. The addition of 0.3% of Centella extract provide higher value in tensile strength (5.0 × 10−2 MPa), elongation at break (281%), melting point (131.31 °C), transparency (0.86) but lower UV-light penetration. While the addition of 0.7% Centella extract contribute to higher value in WVP (1.13 × 10−4 g m1s1Pa1) and puncture test (0.06 N). There are no significant differences between functional groups obtained from this blended film as evaluated by FTIR analysis (p > 0.05). Furthermore, XRD analysis showed the addition of extract decrease the crystallinity of film. In conclusion, the incorporation of Centella asiatica extracts on film greatly increased antioxidant levels and improved some of the mechanical and physical properties of the film blends.

Subject Areas

Centella asiatica extract; gelatin; carboxymethyl cellulose (CMC); antioxidant; functionality properties

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