Quality analysis of anchovies, Stelophorus commersonii dried in drying racks
2017
Nurul Ulfah Karim | Nur Farhah Ahmad Sufi | Sayed Mohamed Zain Sayed Hasan
Traditional drying method may result poor quality of dried fishes. Thus, an appropriate and hygienic practice was proposed for drying the anchovies. Solar drying racks with tunnel structure roofs of four different materials; mosquito net, black net, aluminium sheet and plastic were constructed. Meanwhile traditional open sun drying method acted as controls. All samples were subjected to microbiology and biochemical analysis in order to reveal an improved drying method. Total bacteria counts were significantly (p<0.05) low in anchovies dried from black net and plastic at amount of 2.58±0.53 and 2.84±0.76 log10CFUg-1, respectively compared to the anchovies dried in mosquito net (4.90±0.11 log10CFUg-1). The accumulation of free fatty acid (FFA) in anchovies dried traditionally were recorded at 9.74±1.18 % oleic acid and showed a significantly (p<0.05) higher amount compared to anchovies dried in all types of roof material of the drying racks. TBARS value were significantly (p<0.05) low in both anchovies dries under aluminium sheet and plastic roof materials which were recorded at 2.16±0.03 and 3.22±0.14 mg MA 100g-1, respectively compared to other methods. Meanwhile histamine content in anchovies dried under mosquito net and plastic did not reach the limit of acceptability (50 mg 100g-1). A drying wooden frame racks with tunnel structure plastic roof were considered an improvedsolar drying practice for anchovies.
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