Antimicrobial Activity of Yacon K-23 and Manufacture of Functional Yacon Jam
2005
Kim, Y.S. (Asia University, Kyungsan, Republic of Korea), E-mail: [email protected]
Yacon (Polymnia sonchifolia Poepping and Endlicher), which contains fructo-oligosaccharide, is low calorie functional food. Yacon is efficacious against cholesterol, obesity, and diabetes. Yacon K-23 has antibacterial activity against Gram-positive (Listeria monocytogenes KCTC 3710 and Staphylococcus aureus KCTC 1927) and negative (Salmonella typhimurium KCTC 2514, Escherichia coli KCCM 11591, Proteus vulgaris KCTS 2512, and Pseudomonas aeruginosa KCCM 11803). Yacons A (water extract) and B (crushed juice) showed clear zone of 10 mm, while Cassiae Semen, Acanthopanacis Cortex, Angelica gigas showed 7-10 mm. Yacon jam showed good sensory attributes, suggesting it could be utilized as food ingredient.
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