Indonesian Food Science and TechnologyJournal
Vol. 8 No. 1 (2024): Volume 8. Number 1, December 2024 |IFSTJ|

Quality and Oxidative Stability of Tallow Extracted by Dry- and Wet-Rendering

Amaryllis, Anggia Risty (Unknown)
Aflah, Almira Tsania (Unknown)
Vera, Nur (Unknown)
Erwanto, Yuny (Unknown)
Utama, Dicky Tri (Unknown)
Abidin, Mohammad Zainal (Unknown)



Article Info

Publish Date
28 Dec 2024

Abstract

The oxidative stability of oil or fats is an essential parameter to determine the quality of products. Commonly, tallow is extracted by dry- and wet-rendering, both methods depend upon the water requirement. The study aims to examine the quality and oxidative stability of tallow from both methods, along with different temperatures (25°C and 4°C) and storage times. Tallow was analyzed for quality changes such as acid value (AV), peroxide value (PV), thiobarbituric acid (TBA), fatty acid profile, and differential scanning calorimetry (DSC) to indicate oxidative stability. According to research, acid value (AV) and thiobarbituric acid (TBA) were considered acceptable during storage for 180 days, as per the Codex Standard and FAO/WHO for Named Animal Fats CODEX STAN 211–1999 for edible fats and oils. However, peroxide oxide value (PV) did not meet the acceptable limit for dry- and wet-rendering and storage time of 180 days at 25°C, with values of 17.3 and 16.9 meq O2/kg, respectively. This indicates that fat oxidation increases during storage (p<0.05), while temperature and rendering methods do not significantly impact fat hydrolysis inhibition for 180 days (p>0.05). Even at 4°C, both temperatures failed to preserve tallow quality, as confirmed by fatty acid profiles and differential scanning calorimetry. The result indicates that neither method nor temperature can prevent the inhibition of fat hydrolysis from natural oxidation for a longer storage time of 180 days.

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Journal Info

Abbrev

ifstj

Publisher

Subject

Agriculture, Biological Sciences & Forestry

Description

The journal aims and scope contains original research results and scientific review includes research in the field of Food Science and Technology sciences clumps like food chemistry, food processing, microbiology food safety and food engineeringas well as nutrition. In addition, it also covers ...