Abstract:
Sweet potato or scientifically known as Ipomea Batatas is one of the source of the
carotenoid. The main objective of this study are to extract the carotenoid content in sweet
potato, to determine the suitable and most efficient solvent and extraction time to extract
carotenoid content from sweet potato, and to determine the color of the carotenoid
content in sweet potato. Initially, the experiment was performed for extraction of
carotenoid to determine the suitable solvent used. Two solvent are used which is Ethanol
solvent and combination of Acetone and Petroleum Ether solvent. The result shows that
ethanol solvent has extracted 189.1713±13.167 µg/g of carotenoid content and
combination of Acetone and Petroleum Ether has extracted 583.436±53.644µg/g of
carotenoid content from sweet potato. After that the experiment was proceeds with
extraction of carotenoid at different extraction time which is 30 minutes and 60 minutes
with constant volume of 400 ml. The result shows that at 30 minutes,
196.6167±17.1839µg/g of carotenoids content was extracted by using Ethanol solvent
and 201.5091±4.160 µg/g of carotenoids content was extracted by using combination of
Acetone and Petroleum Ether solvent while at 60 minutes it shows that Ethanol solvent
has extract 187.925±3.375 µg/g of carotenoids content and combination of Acetone and
Petroleum Ether solvent has extract 197.0152±5.910 µg/g of carotenoids content from
sweet potato. lastly, the experiment was continued with determination of color for the
carotenoid by using Chroma meter and the result show that carotenoid obtained
23.54±2.12 for *L scale, -1.60±0.37 for *a scale and 7.68±1.99 for *b scale by extraction
using Ethanol solvent while for extraction using combination of Acetone and Petroleum
Ether solvent the value obtained for *L scale is 23.03±2.03, for *a scale is -1.69±0.41 and
for *b scale is 7.70±2.70.this result indicated carotenoid content from sweet potato was
dark yellow in color. This study concluded that carotenoids content in sweet potato has
potential to replace artificial food coloring in food since it color was closely similar with
sunset yellow artificial colorant.
