1 research outputs found
Chemical profile and antimicrobial activity of essential oil and methanol extract from peels of four Durio zibethinus L. varieties
Durio zibethinus L. (durian) belongs to the Malvaceae family. It is known as the “King of Tropical Fruit” because of its
unique characteristics. The edible part of durian, however, is only about 33% of the fruit while the non-edible parts such
as the seed and peels (rinds) are considered as fruit waste responsible for environmental pollution. Thus, the present study
was carried out to compare the percentage yields and volatile components from methanol extract and essential oils of the
peels of four varieties of durian (Raja Kunyit [D197], Hajah Hasmah [D168], Sultan [D24], and Golden Bun [D13]). The
antimicrobial activity of all the extracts and their volatile chemical constituents were also evaluated. Cold maceration was
used for the solvent (methanol) extraction. The essential oil extraction was carried out using hydro-distillation and solventfree microwave extraction (SFME) methods. The antimicrobial activity was evaluated against selected microbes using the
well difusion method while the characterization of chemical constituents in the essential oils and crude methanolic extracts
was carried out using gas chromatography-mass spectrometry (GC–MS). The highest yields of essential oils were obtained
from D24 which were 0.030% and 0.014% from SFME and hydro-distillation extraction, respectively, while the highest
and most signifcant (p<0.05) yield of methanol extract (8.79%) was obtained from D197. From the GC–MS analysis,
butanoic acid was the major compound in the essential oil of durian peels in the four varieties of durians evaluated. Besides
butanoic acid, 1-tridecene, 1-pentadecene, and 1-heptadecene were also present in the four varieties. The D168 possesses
strong activity against three bacteria (Bacillus subtilis, Staphylococcus aureus, and Pseudomonas aeruginosa). More novel
extraction techniques, bioactivity assays, and characterization are, however, recommended to further explore the potential
benefts of durian peels