Research Output | Dar Al-hikmah Library | IIUM Only
Introduction: Royal jelly (RJ) has been consumed as food or as a supplement because of its high nutritional and medicinal values. A fresh harvested RJ is yellowish to whitish in colour and contains proteins, free amino acids, lipids, vitamins, and sugar. Without proper storage conditions such as at 4 °C, RJ’s colour changes to much darker yellow