Chemical composition of seaweed (Sargassum sp.) based on the different drying methods



Agustinus Paga(1), Ali Agus(2*), Kustantinah Kustantinah(3), I Gede Suparta Budisatria(4)

(1) Department of Animal Science, Kupang State Agricultural Polytechnic, Kupang, East Nusa Tenggara, Indonesia
(2) Faculty of Animal Science UGM
(3) Faculty of Animal Science UGM
(4) Faculty of Animal Science UGM
(*) Corresponding Author

Abstract


Seaweed Sargassum sp. which is not used for food or (for sale) is usually waste and
it has the potential as animal feed stuff especially as mineral source. This study aimed to
evaluate the chemical composition of seaweed (Sargassum sp.) based on different drying
methods. Seaweed Sargassum sp. was obtained from Sepanjang Beach in Gunungkidul
District, Yogyakarta. The seaweed was cleaned from dirt and other materials before drying
process. The drying process for seaweed was divided into two methods. The first method was
sun-dried base for three days started from 07:00 Am to 14:00 PM, the second method was
oven-dried base at temperature of 55 o C for four days. All of the seaweed were grinded, then
analysed using proximate analysis. Data obtained were examined by t-test. The results
indicated that different drying process (sun-dried and oven-dried) did not have significant
effect on the dry matter (90.07+3.73% vs. 89.72±0.54%), ash (41.77+7.30% vs. 46.56+2.01%),
organic matter (58.23+7.30% vs. 53.44+2.01%), crude protein (7.56+1.32% vs. 8.77+0.61%),
and crude fat (0.78+0.25% vs. 0.62+0.24%) content.. Thus, the sun-dried method can be used
optimally to preserve seaweed Sargassum sp. without affect the chemical composition.


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