Formulation and Evaluation of Hearbal Immunity Booster Syrup using Moringa Oleifera and Lemon

A team of researchers developed and tested a herbal syrup combining Moringa oleifera leaf extract with lemon juice, honey, and a preservative, aiming to create an affordable, natural product intended to support immune function. Moringa leaves were chosen for their dense nutritional profile — they contain vitamins, minerals, proteins, and a range of plant-based compounds including flavonoids, tannins, polyphenols, and antioxidants, all of which have been associated with immune-related activity in prior research. Lemon juice was included primarily as a source of Vitamin C, itself a well-documented antioxidant. Honey served as the sweetening agent, and sodium benzoate was added as a preservative to extend shelf life. The researchers extracted active compounds from moringa leaves using a hydroalcoholic method — essentially a water-and-alcohol mixture that draws out both water-soluble and fat-soluble plant chemicals — then combined these with the other ingredients into a stable liquid syrup. The finished product was assessed across a range of physical and chemical properties. It displayed a yellowish-brown colour, a characteristic smell, and a sweet-sour taste. Critically, the pH measured between 5.56 and 5.84, and viscosity fell between 3.2 and 3.4 centipoise, both within ranges considered acceptable for an oral liquid medicine. Stability testing showed the syrup held its properties when stored in sealed containers. The study does not include clinical testing on humans or animals — it is a formulation and characterisation exercise, meaning the immune-boosting effects suggested by the ingredient list remain theoretical at this stage rather than demonstrated by this work.