Seaweed contains various nutrients that has the potential to be a source of nutritious food, but only a few studies done on
the red seaweeds in Malaysia. Therefore, this study was conducted to determine the macronutrients content, amino acid
profile and fatty acid component in Kappaphycus alvarezii and Kappaphycus striatum. The study found that the range
of moisture, fat, ash, protein, fiber and carbohydrates content for both red seaweeds were 6.9% - 7.3%, 0.5% - 2.6%,
29.4% - 30.9%, 2.5% - 5.7% , 5.3% - 5.5% and 50.1% - 53.3% respectively. A total of 16 amino acids were identified
in which the essential amino acid for K. alvarezii and K. striatum were 41.11% and 36.15% respectively. A total of 34
fatty acids were identified in which the content of saturated fatty acids (SFA) was the highest (42.7% - 72.8%), followed
by mono-unsaturated fatty acid (MUFA) (13.8% - 36.2%) and polyunsaturated fatty acids (PUFAs) was the lowest (13.5%
- 21.2%). In conclusion, this study suggest that K. alvarezii and K. striatum are potentially be used as raw materials or
food ingredients to improve the nutritional value of the human diet.
SKajian ini bertujuan untuk menentukan tahap kualiti air hujan di dalam Sistem Penuaian Air Hujan iaitu MyRAWAS yang dibina di Kolej Kediaman Ungku Omar, UKM, Bangi. Parameter air hujan yang dikaji dibandingkan dengan Piawai Kualiti Air Kebangsaan Malaysia (NWQS) dan Piawai Kualiti Air Minum. Parameter yang diuji dalam analisis air hujan ialah suhu, pH, kekeruhan, jumlah pepejal terampai (TSS), oksigen terlarut (DO), permintaan oksigen biokimia (BOD), permintaan oksigen kimia (COD), ammonia-nitrogen (NH3-N), Koliform Jumlah dan Escherichia coli. Hasil kajian mendapati bahawa kesemua bacaan parameter mematuhi piawaian yang telah ditetapkan oleh Piawai Kualiti Air Kebangsaan Malaysia (NWQS) dan Piawai Air Minum Kebangsaan dengan purata nilai suhu, pH, kekeruhan, TSS, DO, BOD, COD dan NH3-N masing-masing berada pada julat 26.2˚C-28.6˚C, 6.18-6.36, 0.93-3.06 ntu, 1.0-4.6 mg/L, 6.21-8.29 mg/L, 0.21-0.43 mg/L, 3-7 mg/L dan 0.01-0.47 mg/L. Manakala bacaan Koliform Jumlah dan Escherichia coli berada di bawah had maksimum yang ditetapkan oleh Piawai Kualiti Air Minum. Berdasarkan Indeks Kualiti Air (IKA), kualiti air hujan di kawasan kajian berada pada kelas IIA bagi titik persampelan T1 dan T2 dan berubah menjadi kelas I selepas menjalani kaedah rawatan penapisan iaitu pada titik persampelan T3. Hasil kajian ini juga mendapati bahawa air tuaian hujan tersebut selamat untuk digunakan untuk aktiviti harian.