Eksplorasi Pengaruh Pewarna Alami Kulit Buah Naga Merah terhadap Kualitas Kerupuk Ikan Lemuru (Sardinella sp.): Exploration of the Effect of Natural Colouring from Red Dragon Fruit Peel on the Quality of Lemuru Fish Crackers (Sardinella sp.). jofe. 2025;4(3):116-126. doi:10.25047/jofe.v4i3.6059