Utilization of mango seed waste and lemongrass leaf extract as biomaterials for edible coating product

Abstract

Mango seed waste is waste from mango fruit that is not utilized and is a concern because it causes environmental problems. Utilizing mango seed waste as a raw material for making biomaterials for edible coating products is the right step. To support the use of mango seed waste as a good edible coating biomaterial, it is necessary to add lemongrass leaf extract as an antibacterial so that the resulting edible coating biomaterial has good mechanical characteristics and can extend the shelf life of food. This research used 100 mL of coating solution consisting of mango seed waste starch with a weight percent variation of 5; 10; 15%, lemongrass leaf extract with a weight percent variation of 0; 3; 6; 9%, glycerol 2%, CMC 1%, and distilled water. The characteristics of the film produced, the best tensile strength and Young’s modulus were obtained from variations of 5% mango seed waste starch and 0% lemongrass extract with a tensile strength value of 0.000486 MPa and a Young’s modulus of elasticity value of 0.0103 MPa. Meanwhile, for the elongation at break value, the film containing 5% mango seed waste starch and 9% lemongrass extract had the best value, namely 2.24%. The results of SEM (Scanning Electron Microscopy) analysis also show that the morphology of the film with the addition of lemongrass leaf extract has a smoother and flatter surface so that the film with the addition of lemongrass leaf extract is better than without lemongrass leaf extract