Telah dilakukan penelitian terhadap pemeriksaan sifatsifat
fisika, kimia dan kandungan. kimia dari lemak ayam potong ( Hubbard broiler ).
Pemeriksaan sifat-sifat fisika meliputi: indeks bias, berat
jenis, suhu beku dan suhu lebur dengan menggunakan metoda
Farmakope Indonesia edisi III. Pemeriksaan sifat-sil'at kimia
meliputi : bilangan asam, bilangan penyabunan dan bilangan
iodium menggunakan metoda Farnkope Indonesia edisi III, untuk.
uji stabilitas menggunakan metoda Kreist test.
Pemeniksaan kandungan kimia meliputi : pemeriksaan minyak mineral dan minyak harsa mengunakan metoda Ekstra Farmakope Indonesia
1974, pemeriksaan kolesterol baik secara kualitatif rraupun
kuantitatif menggunakan. pereaksi Libermann-Burchard,
sedangkan metoda kolorimetri digunakan hanya untuk pemeriksaan
kuantitatif.
Pemeriksaan vitamin A dan D secara kualitatif menggunakan
pereaksi Carr-Price, dan cara.kuantitatif menggunalcan metoda
spektrofotometri.
Hasil percobaan menunjukkan bahwa lenk ayam potong mengandung
kolesterol. Dengan metod.a yang digunakan adanya vitamin A dan
D belum dapat dipastikan.
An investigation has been carried out on physics andchemical properties and chemical content of poultry fat(Hubbard broiler).The examination on physical properties includes refractionindex, density, freezing poit and melting point.The examination on chemical properties includes acid value,saponification value and iodine value using Farmakope Indonesiathird edition method. The stability assay was done by usingKreist test method.The chemical content examination includes the examination onmineral oil and resin oil by applying the Extra FarnkopeIndonesia (1974) method. For both qualitative and quantitativeexamination on cholesterol a Liebernnn-Burchard reaction wasused, while a colorimetric method was use to observe thequantity only. A Carr-Price reaction. was used for the qualitativeexamination on vitamin. A and D, and spectrophotometricmethod was used to examine quantitatively.From the above observation it was indicated that the poultryfat is containing cholesterol. However the method used so farcould not ensure the existence of vitamin A and D.