Characterization of melon (var Sky Rocket) peel pectin using microwave-assisted extraction at different powers and extraction times

NUR AINI (Department of Food Technology, Faculty of Agriculture, Universitas Jenderal Soedirman. Jl. Dr. Suparno No.61, Purwokerto Utara, Banyumas 53123, Central Java, Indonesia)
IFTITAH SYAWALIYAH HERDAWAN (Department of Food Technology, Faculty of Agriculture, Universitas Jenderal Soedirman. Jl. Dr. Suparno No.61, Purwokerto Utara, Banyumas 53123, Central Java, Indonesia)
BUDI SUSTRIAWAN (Department of Food Technology, Faculty of Agriculture, Universitas Jenderal Soedirman. Jl. Dr. Suparno No.61, Purwokerto Utara, Banyumas 53123, Central Java, Indonesia)
RETNO SETYAWATI (Department of Food Technology, Faculty of Agriculture, Universitas Jenderal Soedirman. Jl. Dr. Suparno No.61, Purwokerto Utara, Banyumas 53123, Central Java, Indonesia)
RULLY EKO KUSUMA KURNIAWAN (Department of Agrotechnology, Faculty of Agriculture, Universitas Jenderal Soedirman. Jl. Dr. Suparno No. 1, Purwokerto Utara, Banyumas 53123, Central Java, Indonesia)
NAGEEB MOHAMMED SULIMAN (Department of Food Science and Technology, Faculty of Agriculture, Omdurman Islamic University. Umm Durman, Khartoum, Sudan)
HADANA SABILA ARSYISTAWA (Department of Food Technology, Faculty of Agriculture, Universitas Jenderal Soedirman. Jl. Dr. Suparno No.61, Purwokerto Utara, Banyumas 53123, Central Java, Indonesia)
INDARTO INDARTO (Departmenr of Agricultural Engineering, Faculty of Agricultural Technology, Jember University, Jember, 68121, East Java, Indonesia)

Biodiversitas Journal of Biological Diversity
Vol. 25 No. 4 (2024)

Abstract. Aini N, Herdawan IS, Sustriawan B, Setyawati R, Kurniawan REK, Suliman NM, Arsyistawa HS, Indarto. 2024. Characterization of melon (var Sky Rocket) peel pectin using microwave-assisted extraction at different powers and extraction times. Biodiversitas 25: 1528-1535. Pectin is a heteropolysaccharide molecule that can be used as a thickening agent due to its ability to bind large amounts of water. Pectin can be obtained from fruit peels containing pectic compounds, one of which is melon. A modern extraction technique such as Microwave-Assisted Extraction (MAE) is appropriate because it requires a relatively short time and lower costs. The objective of the research was to determine the effect of power and time on the pectin extraction from melon peel using microwave-assisted extraction. Sample preparation was done by drying the melon peel and then crushing and sieving it to produce melon peel powder. The powder was extracted using combinations of various microwave power of 180 (D1), 270 (D2), and 360 (D3) watts and extraction time variations of 3 (W1), 5 (W2), and 7 (W3) minutes. The results showed that the best treatment combination was extraction using microwave power of 270 watts for 3 minutes, which produced melon peel pectin with a yield of 6.4%, moisture content of 8.85%, ash content of 7.73%, equivalent weight of 1,810.07 mg, methoxyl content of 2.46%, galacturonic acid content of 95.74%, and degree of esterification of 22.02%. Melon peel, usually considered waste, can be used more optimally as a source of pectin.